[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / bluetooth / ath3k.c

/*
 * Copyright (c) 2008-2009 Atheros Communications Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/firmware.h>
#include <linux/usb.h>
#include <net/bluetooth/bluetooth.h>

#define VERSION "1.0"
#define ATH3K_FIRMWARE	"ath3k-1.fw"

#define ATH3K_DNLOAD				0x01
#define ATH3K_GETSTATE				0x05
#define ATH3K_SET_NORMAL_MODE			0x07
#define ATH3K_GETVERSION			0x09
#define USB_REG_SWITCH_VID_PID			0x0a

#define ATH3K_MODE_MASK				0x3F
#define ATH3K_NORMAL_MODE			0x0E

#define ATH3K_PATCH_UPDATE			0x80
#define ATH3K_SYSCFG_UPDATE			0x40

#define ATH3K_XTAL_FREQ_26M			0x00
#define ATH3K_XTAL_FREQ_40M			0x01
#define ATH3K_XTAL_FREQ_19P2			0x02
#define ATH3K_NAME_LEN				0xFF

struct ath3k_version {
	unsigned int	rom_version;
	unsigned int	build_version;
	unsigned int	ram_version;
	unsigned char	ref_clock;
	unsigned char	reserved[0x07];
};

static struct usb_device_id ath3k_table[] = {
	/* Atheros AR3011 */
	{ USB_DEVICE(0x0CF3, 0x3000) },

	/* Atheros AR3011 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x3002) },
	{ USB_DEVICE(0x0CF3, 0xE019) },
	{ USB_DEVICE(0x13d3, 0x3304) },
	{ USB_DEVICE(0x0930, 0x0215) },
	{ USB_DEVICE(0x0489, 0xE03D) },
	{ USB_DEVICE(0x0489, 0xE027) },

	/* Atheros AR9285 Malbec with sflash firmware */
	{ USB_DEVICE(0x03F0, 0x311D) },

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0CF3, 0x3004) },
	{ USB_DEVICE(0x0CF3, 0x311D) },
	{ USB_DEVICE(0x13d3, 0x3375) },
	{ USB_DEVICE(0x04CA, 0x3005) },
	{ USB_DEVICE(0x04CA, 0x3006) },
	{ USB_DEVICE(0x04CA, 0x3008) },
	{ USB_DEVICE(0x13d3, 0x3362) },
	{ USB_DEVICE(0x0CF3, 0xE004) },
	{ USB_DEVICE(0x0930, 0x0219) },
	{ USB_DEVICE(0x0489, 0xe057) },
	{ USB_DEVICE(0x13d3, 0x3393) },
	{ USB_DEVICE(0x0489, 0xe04e) },
	{ USB_DEVICE(0x0489, 0xe056) },

	/* Atheros AR5BBU12 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE02C) },

	/* Atheros AR5BBU22 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE03C) },
	{ USB_DEVICE(0x0489, 0xE036) },

	{ }	/* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, ath3k_table);

#define BTUSB_ATH3012		0x80
/* This table is to load patch and sysconfig files
 * for AR3012 */
static struct usb_device_id ath3k_blist_tbl[] = {

	/* Atheros AR3012 with sflash firmware*/
	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },

	/* Atheros AR5BBU22 with sflash firmware */
	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },

	{ }	/* Terminating entry */
};

#define USB_REQ_DFU_DNLOAD	1
#define BULK_SIZE		4096
#define FW_HDR_SIZE		20

static int ath3k_load_firmware(struct usb_device *udev,
				const struct firmware *firmware)
{
	u8 *send_buf;
	int err, pipe, len, size, sent = 0;
	int count = firmware->size;

	BT_DBG("udev %p", udev);

	pipe = usb_sndctrlpipe(udev, 0);

	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
	if (!send_buf) {
		BT_ERR("Can't allocate memory chunk for firmware");
		return -ENOMEM;
	}

	memcpy(send_buf, firmware->data, 20);
	if ((err = usb_control_msg(udev, pipe,
				USB_REQ_DFU_DNLOAD,
				USB_TYPE_VENDOR, 0, 0,
				send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
		BT_ERR("Can't change to loading configuration err");
		goto error;
	}
	sent += 20;
	count -= 20;

	while (count) {
		size = min_t(uint, count, BULK_SIZE);
		pipe = usb_sndbulkpipe(udev, 0x02);
		memcpy(send_buf, firmware->data + sent, size);

		err = usb_bulk_msg(udev, pipe, send_buf, size,
					&len, 3000);

		if (err || (len != size)) {
			BT_ERR("Error in firmware loading err = %d,"
				"len = %d, size = %d", err, len, size);
			goto error;
		}

		sent  += size;
		count -= size;
	}

error:
	kfree(send_buf);
	return err;
}

static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
{
	int pipe = 0;

	pipe = usb_rcvctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
			state, 0x01, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_get_version(struct usb_device *udev,
			struct ath3k_version *version)
{
	int pipe = 0;

	pipe = usb_rcvctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
			USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
			sizeof(struct ath3k_version),
			USB_CTRL_SET_TIMEOUT);
}

static int ath3k_load_fwfile(struct usb_device *udev,
		const struct firmware *firmware)
{
	u8 *send_buf;
	int err, pipe, len, size, count, sent = 0;
	int ret;

	count = firmware->size;

	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
	if (!send_buf) {
		BT_ERR("Can't allocate memory chunk for firmware");
		return -ENOMEM;
	}

	size = min_t(uint, count, FW_HDR_SIZE);
	memcpy(send_buf, firmware->data, size);

	pipe = usb_sndctrlpipe(udev, 0);
	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
			USB_TYPE_VENDOR, 0, 0, send_buf,
			size, USB_CTRL_SET_TIMEOUT);
	if (ret < 0) {
		BT_ERR("Can't change to loading configuration err");
		kfree(send_buf);
		return ret;
	}

	sent += size;
	count -= size;

	while (count) {
		size = min_t(uint, count, BULK_SIZE);
		pipe = usb_sndbulkpipe(udev, 0x02);

		memcpy(send_buf, firmware->data + sent, size);

		err = usb_bulk_msg(udev, pipe, send_buf, size,
					&len, 3000);
		if (err || (len != size)) {
			BT_ERR("Error in firmware loading err = %d,"
				"len = %d, size = %d", err, len, size);
			kfree(send_buf);
			return err;
		}
		sent  += size;
		count -= size;
	}

	kfree(send_buf);
	return 0;
}

static int ath3k_switch_pid(struct usb_device *udev)
{
	int pipe = 0;

	pipe = usb_sndctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
			USB_TYPE_VENDOR, 0, 0,
			NULL, 0, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_set_normal_mode(struct usb_device *udev)
{
	unsigned char fw_state;
	int pipe = 0, ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to normal mode err");
		return ret;
	}

	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
		BT_DBG("firmware was already in normal mode");
		return 0;
	}

	pipe = usb_sndctrlpipe(udev, 0);
	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
			USB_TYPE_VENDOR, 0, 0,
			NULL, 0, USB_CTRL_SET_TIMEOUT);
}

static int ath3k_load_patch(struct usb_device *udev)
{
	unsigned char fw_state;
	char filename[ATH3K_NAME_LEN] = {0};
	const struct firmware *firmware;
	struct ath3k_version fw_version, pt_version;
	int ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to load ram patch err");
		return ret;
	}

	if (fw_state & ATH3K_PATCH_UPDATE) {
		BT_DBG("Patch was already downloaded");
		return 0;
	}

	ret = ath3k_get_version(udev, &fw_version);
	if (ret < 0) {
		BT_ERR("Can't get version to change to load ram patch err");
		return ret;
	}

	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
		fw_version.rom_version);

	ret = request_firmware(&firmware, filename, &udev->dev);
	if (ret < 0) {
		BT_ERR("Patch file not found %s", filename);
		return ret;
	}

	pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
	pt_version.build_version = *(int *)
		(firmware->data + firmware->size - 4);

	if ((pt_version.rom_version != fw_version.rom_version) ||
		(pt_version.build_version <= fw_version.build_version)) {
		BT_ERR("Patch file version did not match with firmware");
		release_firmware(firmware);
		return -EINVAL;
	}

	ret = ath3k_load_fwfile(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static int ath3k_load_syscfg(struct usb_device *udev)
{
	unsigned char fw_state;
	char filename[ATH3K_NAME_LEN] = {0};
	const struct firmware *firmware;
	struct ath3k_version fw_version;
	int clk_value, ret;

	ret = ath3k_get_state(udev, &fw_state);
	if (ret < 0) {
		BT_ERR("Can't get state to change to load configration err");
		return -EBUSY;
	}

	ret = ath3k_get_version(udev, &fw_version);
	if (ret < 0) {
		BT_ERR("Can't get version to change to load ram patch err");
		return ret;
	}

	switch (fw_version.ref_clock) {

	case ATH3K_XTAL_FREQ_26M:
		clk_value = 26;
		break;
	case ATH3K_XTAL_FREQ_40M:
		clk_value = 40;
		break;
	case ATH3K_XTAL_FREQ_19P2:
		clk_value = 19;
		break;
	default:
		clk_value = 0;
		break;
	}

	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
		fw_version.rom_version, clk_value, ".dfu");

	ret = request_firmware(&firmware, filename, &udev->dev);
	if (ret < 0) {
		BT_ERR("Configuration file not found %s", filename);
		return ret;
	}

	ret = ath3k_load_fwfile(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static int ath3k_probe(struct usb_interface *intf,
			const struct usb_device_id *id)
{
	const struct firmware *firmware;
	struct usb_device *udev = interface_to_usbdev(intf);
	int ret;

	BT_DBG("intf %p id %p", intf, id);

	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
		return -ENODEV;

	/* match device ID in ath3k blacklist table */
	if (!id->driver_info) {
		const struct usb_device_id *match;
		match = usb_match_id(intf, ath3k_blist_tbl);
		if (match)
			id = match;
	}

	/* load patch and sysconfig files for AR3012 */
	if (id->driver_info & BTUSB_ATH3012) {

		/* New firmware with patch and sysconfig files already loaded */
		if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
			return -ENODEV;

		ret = ath3k_load_patch(udev);
		if (ret < 0) {
			BT_ERR("Loading patch file failed");
			return ret;
		}
		ret = ath3k_load_syscfg(udev);
		if (ret < 0) {
			BT_ERR("Loading sysconfig file failed");
			return ret;
		}
		ret = ath3k_set_normal_mode(udev);
		if (ret < 0) {
			BT_ERR("Set normal mode failed");
			return ret;
		}
		ath3k_switch_pid(udev);
		return 0;
	}

	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	if (ret < 0) {
		if (ret == -ENOENT)
			BT_ERR("Firmware file \"%s\" not found",
							ATH3K_FIRMWARE);
		else
			BT_ERR("Firmware file \"%s\" request failed (err=%d)",
							ATH3K_FIRMWARE, ret);
		return ret;
	}

	ret = ath3k_load_firmware(udev, firmware);
	release_firmware(firmware);

	return ret;
}

static void ath3k_disconnect(struct usb_interface *intf)
{
	BT_DBG("ath3k_disconnect intf %p", intf);
}

static struct usb_driver ath3k_driver = {
	.name		= "ath3k",
	.probe		= ath3k_probe,
	.disconnect	= ath3k_disconnect,
	.id_table	= ath3k_table,
	.disable_hub_initiated_lpm = 1,
};

module_usb_driver(ath3k_driver);

MODULE_AUTHOR("Atheros Communications");
MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(ATH3K_FIRMWARE);
Commit	Line	Data
9670d80a VK	1	/*
	2	* Copyright (c) 2008-2009 Atheros Communications Inc.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*
	18	*/
	19
	20
	21	#include <linux/module.h>
	22	#include <linux/kernel.h>
	23	#include <linux/init.h>
	24	#include <linux/slab.h>
	25	#include <linux/types.h>
	26	#include <linux/errno.h>
	27	#include <linux/device.h>
	28	#include <linux/firmware.h>
	29	#include <linux/usb.h>
	30	#include <net/bluetooth/bluetooth.h>
	31
	32	#define VERSION "1.0"
c3eae82a	33	#define ATH3K_FIRMWARE "ath3k-1.fw"
9670d80a	34
d9f51b51 BS	35	#define ATH3K_DNLOAD 0x01
	36	#define ATH3K_GETSTATE 0x05
	37	#define ATH3K_SET_NORMAL_MODE 0x07
	38	#define ATH3K_GETVERSION 0x09
	39	#define USB_REG_SWITCH_VID_PID 0x0a
	40
	41	#define ATH3K_MODE_MASK 0x3F
	42	#define ATH3K_NORMAL_MODE 0x0E
	43
	44	#define ATH3K_PATCH_UPDATE 0x80
	45	#define ATH3K_SYSCFG_UPDATE 0x40
	46
	47	#define ATH3K_XTAL_FREQ_26M 0x00
	48	#define ATH3K_XTAL_FREQ_40M 0x01
	49	#define ATH3K_XTAL_FREQ_19P2 0x02
	50	#define ATH3K_NAME_LEN 0xFF
	51
	52	struct ath3k_version {
	53	unsigned int rom_version;
	54	unsigned int build_version;
	55	unsigned int ram_version;
	56	unsigned char ref_clock;
	57	unsigned char reserved[0x07];
	58	};
9670d80a VK	59
	60	static struct usb_device_id ath3k_table[] = {
	61	/* Atheros AR3011 */
	62	{ USB_DEVICE(0x0CF3, 0x3000) },
be93112a BS	63
	64	/* Atheros AR3011 with sflash firmware*/
	65	{ USB_DEVICE(0x0CF3, 0x3002) },
6eda541d	66	{ USB_DEVICE(0x0CF3, 0xE019) },
2a7bcccc	67	{ USB_DEVICE(0x13d3, 0x3304) },
8e7c3d2e	68	{ USB_DEVICE(0x0930, 0x0215) },
6b6ba88b	69	{ USB_DEVICE(0x0489, 0xE03D) },
acd94544	70	{ USB_DEVICE(0x0489, 0xE027) },
be93112a	71
509e7861 CYC	72	/* Atheros AR9285 Malbec with sflash firmware */
509e7861 CYC	73	{ USB_DEVICE(0x03F0, 0x311D) },
d9f51b51 BS	74
	75	/* Atheros AR3012 with sflash firmware*/
	76	{ USB_DEVICE(0x0CF3, 0x3004) },
07c0ea87	77	{ USB_DEVICE(0x0CF3, 0x311D) },
9498ba7a	78	{ USB_DEVICE(0x13d3, 0x3375) },
55ed7d4d	79	{ USB_DEVICE(0x04CA, 0x3005) },
2c262b2a	80	{ USB_DEVICE(0x04CA, 0x3006) },
f4d6f7dc	81	{ USB_DEVICE(0x04CA, 0x3008) },
87522a43	82	{ USB_DEVICE(0x13d3, 0x3362) },
ac71311e	83	{ USB_DEVICE(0x0CF3, 0xE004) },
6c4ae5c2	84	{ USB_DEVICE(0x0930, 0x0219) },
2096ae6c	85	{ USB_DEVICE(0x0489, 0xe057) },
eed307e2	86	{ USB_DEVICE(0x13d3, 0x3393) },
3a61eda8	87	{ USB_DEVICE(0x0489, 0xe04e) },
2582d529	88	{ USB_DEVICE(0x0489, 0xe056) },
d9f51b51	89
e9036e33 CYC	90	/* Atheros AR5BBU12 with sflash firmware */
e9036e33 CYC	91	{ USB_DEVICE(0x0489, 0xE02C) },
b67afe7f	92
85d59726 MG	93	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	94	{ USB_DEVICE(0x0489, 0xE03C) },
bc21fde2	95	{ USB_DEVICE(0x0489, 0xE036) },
85d59726	96
9670d80a VK	97	{ } /* Terminating entry */
	98	};
	99
	100	MODULE_DEVICE_TABLE(usb, ath3k_table);
	101
d9f51b51 BS	102	#define BTUSB_ATH3012 0x80
	103	/* This table is to load patch and sysconfig files
	104	* for AR3012 */
	105	static struct usb_device_id ath3k_blist_tbl[] = {
	106
	107	/* Atheros AR3012 with sflash firmware*/
	108	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
07c0ea87	109	{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
9498ba7a	110	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
55ed7d4d	111	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
2c262b2a	112	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
f4d6f7dc	113	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
87522a43	114	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
ac71311e	115	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
6c4ae5c2	116	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
2096ae6c	117	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
eed307e2	118	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
3a61eda8	119	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
2582d529	120	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
d9f51b51	121
85d59726 MG	122	/* Atheros AR5BBU22 with sflash firmware */
85d59726 MG	123	{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
bc21fde2	124	{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
85d59726	125
d9f51b51 BS	126	{ } /* Terminating entry */
	127	};
	128
9670d80a VK	129	#define USB_REQ_DFU_DNLOAD 1
9670d80a VK	130	#define BULK_SIZE 4096
d9f51b51	131	#define FW_HDR_SIZE 20
9670d80a	132
86e09287 AH	133	static int ath3k_load_firmware(struct usb_device *udev,
86e09287 AH	134	const struct firmware *firmware)
9670d80a VK	135	{
	136	u8 *send_buf;
	137	int err, pipe, len, size, sent = 0;
86e09287	138	int count = firmware->size;
9670d80a	139
86e09287	140	BT_DBG("udev %p", udev);
9670d80a	141
86e09287	142	pipe = usb_sndctrlpipe(udev, 0);
9670d80a	143
52a1020e	144	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
86e09287 AH	145	if (!send_buf) {
	146	BT_ERR("Can't allocate memory chunk for firmware");
	147	return -ENOMEM;
	148	}
	149
	150	memcpy(send_buf, firmware->data, 20);
	151	if ((err = usb_control_msg(udev, pipe,
9670d80a VK	152	USB_REQ_DFU_DNLOAD,
9670d80a VK	153	USB_TYPE_VENDOR, 0, 0,
86e09287	154	send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
9670d80a	155	BT_ERR("Can't change to loading configuration err");
86e09287	156	goto error;
9670d80a VK	157	}
	158	sent += 20;
	159	count -= 20;
	160
9670d80a VK	161	while (count) {
9670d80a VK	162	size = min_t(uint, count, BULK_SIZE);
86e09287 AH	163	pipe = usb_sndbulkpipe(udev, 0x02);
86e09287 AH	164	memcpy(send_buf, firmware->data + sent, size);
9670d80a	165
86e09287	166	err = usb_bulk_msg(udev, pipe, send_buf, size,
9670d80a VK	167	&len, 3000);
	168
	169	if (err \|\| (len != size)) {
	170	BT_ERR("Error in firmware loading err = %d,"
	171	"len = %d, size = %d", err, len, size);
	172	goto error;
	173	}
	174
	175	sent += size;
	176	count -= size;
	177	}
	178
9670d80a VK	179	error:
	180	kfree(send_buf);
	181	return err;
	182	}
	183
d9f51b51 BS	184	static int ath3k_get_state(struct usb_device udev, unsigned char state)
	185	{
	186	int pipe = 0;
	187
	188	pipe = usb_rcvctrlpipe(udev, 0);
	189	return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
	190	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0,
	191	state, 0x01, USB_CTRL_SET_TIMEOUT);
	192	}
	193
	194	static int ath3k_get_version(struct usb_device *udev,
	195	struct ath3k_version *version)
	196	{
	197	int pipe = 0;
	198
	199	pipe = usb_rcvctrlpipe(udev, 0);
	200	return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
	201	USB_TYPE_VENDOR \| USB_DIR_IN, 0, 0, version,
	202	sizeof(struct ath3k_version),
	203	USB_CTRL_SET_TIMEOUT);
	204	}
	205
	206	static int ath3k_load_fwfile(struct usb_device *udev,
	207	const struct firmware *firmware)
	208	{
	209	u8 *send_buf;
	210	int err, pipe, len, size, count, sent = 0;
	211	int ret;
	212
	213	count = firmware->size;
	214
52a1020e	215	send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
d9f51b51 BS	216	if (!send_buf) {
	217	BT_ERR("Can't allocate memory chunk for firmware");
	218	return -ENOMEM;
	219	}
	220
	221	size = min_t(uint, count, FW_HDR_SIZE);
	222	memcpy(send_buf, firmware->data, size);
	223
	224	pipe = usb_sndctrlpipe(udev, 0);
	225	ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
	226	USB_TYPE_VENDOR, 0, 0, send_buf,
	227	size, USB_CTRL_SET_TIMEOUT);
	228	if (ret < 0) {
	229	BT_ERR("Can't change to loading configuration err");
	230	kfree(send_buf);
	231	return ret;
	232	}
	233
	234	sent += size;
	235	count -= size;
	236
	237	while (count) {
	238	size = min_t(uint, count, BULK_SIZE);
	239	pipe = usb_sndbulkpipe(udev, 0x02);
	240
	241	memcpy(send_buf, firmware->data + sent, size);
	242
	243	err = usb_bulk_msg(udev, pipe, send_buf, size,
	244	&len, 3000);
	245	if (err \|\| (len != size)) {
	246	BT_ERR("Error in firmware loading err = %d,"
	247	"len = %d, size = %d", err, len, size);
	248	kfree(send_buf);
	249	return err;
	250	}
	251	sent += size;
	252	count -= size;
	253	}
	254
	255	kfree(send_buf);
	256	return 0;
	257	}
	258
	259	static int ath3k_switch_pid(struct usb_device *udev)
	260	{
	261	int pipe = 0;
	262
	263	pipe = usb_sndctrlpipe(udev, 0);
	264	return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
	265	USB_TYPE_VENDOR, 0, 0,
	266	NULL, 0, USB_CTRL_SET_TIMEOUT);
	267	}
	268
	269	static int ath3k_set_normal_mode(struct usb_device *udev)
	270	{
	271	unsigned char fw_state;
	272	int pipe = 0, ret;
	273
	274	ret = ath3k_get_state(udev, &fw_state);
	275	if (ret < 0) {
	276	BT_ERR("Can't get state to change to normal mode err");
	277	return ret;
	278	}
	279
280	if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
281	BT_DBG("firmware was already in normal mode");
282	return 0;
283	}
284
285	pipe = usb_sndctrlpipe(udev, 0);
286	return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
287	USB_TYPE_VENDOR, 0, 0,
288	NULL, 0, USB_CTRL_SET_TIMEOUT);
289	}
290
291	static int ath3k_load_patch(struct usb_device *udev)
292	{
293	unsigned char fw_state;
294	char filename[ATH3K_NAME_LEN] = {0};
295	const struct firmware *firmware;
296	struct ath3k_version fw_version, pt_version;
297	int ret;
298
299	ret = ath3k_get_state(udev, &fw_state);
300	if (ret < 0) {
301	BT_ERR("Can't get state to change to load ram patch err");
302	return ret;
303	}
304
305	if (fw_state & ATH3K_PATCH_UPDATE) {
306	BT_DBG("Patch was already downloaded");
307	return 0;
308	}
309
310	ret = ath3k_get_version(udev, &fw_version);
311	if (ret < 0) {
312	BT_ERR("Can't get version to change to load ram patch err");
313	return ret;
314	}
315
316	snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
317	fw_version.rom_version);
318
319	ret = request_firmware(&firmware, filename, &udev->dev);
320	if (ret < 0) {
321	BT_ERR("Patch file not found %s", filename);
322	return ret;
323	}
324
325	pt_version.rom_version = (int )(firmware->data + firmware->size - 8);
326	pt_version.build_version = (int )
327	(firmware->data + firmware->size - 4);
328
329	if ((pt_version.rom_version != fw_version.rom_version) \|\|
330	(pt_version.build_version <= fw_version.build_version)) {
331	BT_ERR("Patch file version did not match with firmware");
332	release_firmware(firmware);
333	return -EINVAL;
334	}
335
336	ret = ath3k_load_fwfile(udev, firmware);
337	release_firmware(firmware);
338
339	return ret;
340	}
341
342	static int ath3k_load_syscfg(struct usb_device *udev)
343	{
344	unsigned char fw_state;
345	char filename[ATH3K_NAME_LEN] = {0};
346	const struct firmware *firmware;
347	struct ath3k_version fw_version;
348	int clk_value, ret;
349
350	ret = ath3k_get_state(udev, &fw_state);
351	if (ret < 0) {
352	BT_ERR("Can't get state to change to load configration err");
353	return -EBUSY;
354	}
355
356	ret = ath3k_get_version(udev, &fw_version);
357	if (ret < 0) {
358	BT_ERR("Can't get version to change to load ram patch err");
359	return ret;
360	}
361
362	switch (fw_version.ref_clock) {
363
364	case ATH3K_XTAL_FREQ_26M:
365	clk_value = 26;
366	break;
367	case ATH3K_XTAL_FREQ_40M:
368	clk_value = 40;
369	break;
370	case ATH3K_XTAL_FREQ_19P2:
371	clk_value = 19;
372	break;
373	default:
374	clk_value = 0;
375	break;
376	}
377
378	snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
379	fw_version.rom_version, clk_value, ".dfu");
380
381	ret = request_firmware(&firmware, filename, &udev->dev);
382	if (ret < 0) {
383	BT_ERR("Configuration file not found %s", filename);
384	return ret;
385	}
386
387	ret = ath3k_load_fwfile(udev, firmware);
388	release_firmware(firmware);
389
390	return ret;
391	}
392
9670d80a VK	393	static int ath3k_probe(struct usb_interface *intf,
	394	const struct usb_device_id *id)
	395	{
	396	const struct firmware *firmware;
	397	struct usb_device *udev = interface_to_usbdev(intf);
84f0e17f	398	int ret;
9670d80a VK	399
	400	BT_DBG("intf %p id %p", intf, id);
	401
	402	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
	403	return -ENODEV;
	404
d9f51b51 BS	405	/* match device ID in ath3k blacklist table */
	406	if (!id->driver_info) {
	407	const struct usb_device_id *match;
	408	match = usb_match_id(intf, ath3k_blist_tbl);
	409	if (match)
	410	id = match;
	411	}
	412
	413	/* load patch and sysconfig files for AR3012 */
	414	if (id->driver_info & BTUSB_ATH3012) {
2d25f8b4 SL	415
	416	/* New firmware with patch and sysconfig files already loaded */
	417	if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
	418	return -ENODEV;
	419
d9f51b51 BS	420	ret = ath3k_load_patch(udev);
	421	if (ret < 0) {
	422	BT_ERR("Loading patch file failed");
	423	return ret;
	424	}
	425	ret = ath3k_load_syscfg(udev);
	426	if (ret < 0) {
	427	BT_ERR("Loading sysconfig file failed");
	428	return ret;
	429	}
	430	ret = ath3k_set_normal_mode(udev);
	431	if (ret < 0) {
	432	BT_ERR("Set normal mode failed");
	433	return ret;
	434	}
	435	ath3k_switch_pid(udev);
	436	return 0;
	437	}
	438
c3eae82a PF	439	ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
	440	if (ret < 0) {
	441	if (ret == -ENOENT)
	442	BT_ERR("Firmware file \"%s\" not found",
	443	ATH3K_FIRMWARE);
	444	else
	445	BT_ERR("Firmware file \"%s\" request failed (err=%d)",
	446	ATH3K_FIRMWARE, ret);
	447	return ret;
9670d80a VK	448	}
9670d80a VK	449
84f0e17f	450	ret = ath3k_load_firmware(udev, firmware);
86e09287	451	release_firmware(firmware);
9670d80a	452
84f0e17f	453	return ret;
9670d80a VK	454	}
	455
	456	static void ath3k_disconnect(struct usb_interface *intf)
	457	{
9670d80a	458	BT_DBG("ath3k_disconnect intf %p", intf);
9670d80a VK	459	}
	460
	461	static struct usb_driver ath3k_driver = {
	462	.name = "ath3k",
	463	.probe = ath3k_probe,
	464	.disconnect = ath3k_disconnect,
	465	.id_table = ath3k_table,
e1f12eb6	466	.disable_hub_initiated_lpm = 1,
9670d80a VK	467	};
9670d80a VK	468
93f1508c	469	module_usb_driver(ath3k_driver);
9670d80a VK	470
	471	MODULE_AUTHOR("Atheros Communications");
	472	MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
	473	MODULE_VERSION(VERSION);
	474	MODULE_LICENSE("GPL");
c3eae82a	475	MODULE_FIRMWARE(ATH3K_FIRMWARE);