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

/**
 * Marvell Bluetooth driver
 *
 * Copyright (C) 2009, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 **/

#include <linux/module.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "btmrvl_drv.h"

#define VERSION "1.0"

/*
 * This function is called by interface specific interrupt handler.
 * It updates Power Save & Host Sleep states, and wakes up the main
 * thread.
 */
void btmrvl_interrupt(struct btmrvl_private *priv)
{
	priv->adapter->ps_state = PS_AWAKE;

	priv->adapter->wakeup_tries = 0;

	priv->adapter->int_count++;

	wake_up_interruptible(&priv->main_thread.wait_q);
}
EXPORT_SYMBOL_GPL(btmrvl_interrupt);

bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
{
	struct hci_event_hdr *hdr = (void *) skb->data;

	if (hdr->evt == HCI_EV_CMD_COMPLETE) {
		struct hci_ev_cmd_complete *ec;
		u16 opcode, ocf, ogf;

		ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
		opcode = __le16_to_cpu(ec->opcode);
		ocf = hci_opcode_ocf(opcode);
		ogf = hci_opcode_ogf(opcode);

		if (ocf == BT_CMD_MODULE_CFG_REQ &&
					priv->btmrvl_dev.sendcmdflag) {
			priv->btmrvl_dev.sendcmdflag = false;
			priv->adapter->cmd_complete = true;
			wake_up_interruptible(&priv->adapter->cmd_wait_q);
		}

		if (ogf == OGF) {
			BT_DBG("vendor event skipped: ogf 0x%4.4x ocf 0x%4.4x",
			       ogf, ocf);
			kfree_skb(skb);
			return false;
		}
	}

	return true;
}
EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);

int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
{
	struct btmrvl_adapter *adapter = priv->adapter;
	struct btmrvl_event *event;
	int ret = 0;

	event = (struct btmrvl_event *) skb->data;
	if (event->ec != 0xff) {
		BT_DBG("Not Marvell Event=%x", event->ec);
		ret = -EINVAL;
		goto exit;
	}

	switch (event->data[0]) {
	case BT_CMD_AUTO_SLEEP_MODE:
		if (!event->data[2]) {
			if (event->data[1] == BT_PS_ENABLE)
				adapter->psmode = 1;
			else
				adapter->psmode = 0;
			BT_DBG("PS Mode:%s",
				(adapter->psmode) ? "Enable" : "Disable");
		} else {
			BT_DBG("PS Mode command failed");
		}
		break;

	case BT_CMD_HOST_SLEEP_CONFIG:
		if (!event->data[3])
			BT_DBG("gpio=%x, gap=%x", event->data[1],
							event->data[2]);
		else
			BT_DBG("HSCFG command failed");
		break;

	case BT_CMD_HOST_SLEEP_ENABLE:
		if (!event->data[1]) {
			adapter->hs_state = HS_ACTIVATED;
			if (adapter->psmode)
				adapter->ps_state = PS_SLEEP;
			wake_up_interruptible(&adapter->cmd_wait_q);
			BT_DBG("HS ACTIVATED!");
		} else {
			BT_DBG("HS Enable failed");
		}
		break;

	case BT_CMD_MODULE_CFG_REQ:
		if (priv->btmrvl_dev.sendcmdflag &&
				event->data[1] == MODULE_BRINGUP_REQ) {
			BT_DBG("EVENT:%s",
				((event->data[2] == MODULE_BROUGHT_UP) ||
				(event->data[2] == MODULE_ALREADY_UP)) ?
				"Bring-up succeed" : "Bring-up failed");

			if (event->length > 3 && event->data[3])
				priv->btmrvl_dev.dev_type = HCI_AMP;
			else
				priv->btmrvl_dev.dev_type = HCI_BREDR;

			BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type);
		} else if (priv->btmrvl_dev.sendcmdflag &&
				event->data[1] == MODULE_SHUTDOWN_REQ) {
			BT_DBG("EVENT:%s", (event->data[2]) ?
				"Shutdown failed" : "Shutdown succeed");
		} else {
			BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
			ret = -EINVAL;
		}
		break;

	case BT_EVENT_POWER_STATE:
		if (event->data[1] == BT_PS_SLEEP)
			adapter->ps_state = PS_SLEEP;
		BT_DBG("EVENT:%s",
			(adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
		break;

	default:
		BT_DBG("Unknown Event=%d", event->data[0]);
		ret = -EINVAL;
		break;
	}

exit:
	if (!ret)
		kfree_skb(skb);

	return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_process_event);

int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
{
	struct sk_buff *skb;
	struct btmrvl_cmd *cmd;
	int ret = 0;

	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	if (skb == NULL) {
		BT_ERR("No free skb");
		return -ENOMEM;
	}

	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
	cmd->length = 1;
	cmd->data[0] = subcmd;

	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;

	skb->dev = (void *) priv->btmrvl_dev.hcidev;
	skb_queue_head(&priv->adapter->tx_queue, skb);

	priv->btmrvl_dev.sendcmdflag = true;

	priv->adapter->cmd_complete = false;

	BT_DBG("Queue module cfg Command");

	wake_up_interruptible(&priv->main_thread.wait_q);

	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
				priv->adapter->cmd_complete,
				msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
		ret = -ETIMEDOUT;
		BT_ERR("module_cfg_cmd(%x): timeout: %d",
					subcmd, priv->btmrvl_dev.sendcmdflag);
	}

	BT_DBG("module cfg Command done");

	return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);

int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
{
	struct sk_buff *skb;
	struct btmrvl_cmd *cmd;

	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	if (!skb) {
		BT_ERR("No free skb");
		return -ENOMEM;
	}

	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
						   BT_CMD_HOST_SLEEP_CONFIG));
	cmd->length = 2;
	cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
	cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);

	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;

	skb->dev = (void *) priv->btmrvl_dev.hcidev;
	skb_queue_head(&priv->adapter->tx_queue, skb);

	BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", cmd->data[0],
	       cmd->data[1]);

	return 0;
}
EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);

int btmrvl_enable_ps(struct btmrvl_private *priv)
{
	struct sk_buff *skb;
	struct btmrvl_cmd *cmd;

	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	if (skb == NULL) {
		BT_ERR("No free skb");
		return -ENOMEM;
	}

	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
					BT_CMD_AUTO_SLEEP_MODE));
	cmd->length = 1;

	if (priv->btmrvl_dev.psmode)
		cmd->data[0] = BT_PS_ENABLE;
	else
		cmd->data[0] = BT_PS_DISABLE;

	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;

	skb->dev = (void *) priv->btmrvl_dev.hcidev;
	skb_queue_head(&priv->adapter->tx_queue, skb);

	BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);

	return 0;
}
EXPORT_SYMBOL_GPL(btmrvl_enable_ps);

int btmrvl_enable_hs(struct btmrvl_private *priv)
{
	struct sk_buff *skb;
	struct btmrvl_cmd *cmd;
	int ret = 0;

	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	if (skb == NULL) {
		BT_ERR("No free skb");
		return -ENOMEM;
	}

	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
	cmd->length = 0;

	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;

	skb->dev = (void *) priv->btmrvl_dev.hcidev;
	skb_queue_head(&priv->adapter->tx_queue, skb);

	BT_DBG("Queue hs enable Command");

	wake_up_interruptible(&priv->main_thread.wait_q);

	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
			priv->adapter->hs_state,
			msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
		ret = -ETIMEDOUT;
		BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
						priv->adapter->ps_state,
						priv->adapter->wakeup_tries);
	}

	return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_enable_hs);

int btmrvl_prepare_command(struct btmrvl_private *priv)
{
	int ret = 0;

	if (priv->btmrvl_dev.hscfgcmd) {
		priv->btmrvl_dev.hscfgcmd = 0;
		btmrvl_send_hscfg_cmd(priv);
	}

	if (priv->btmrvl_dev.pscmd) {
		priv->btmrvl_dev.pscmd = 0;
		btmrvl_enable_ps(priv);
	}

	if (priv->btmrvl_dev.hscmd) {
		priv->btmrvl_dev.hscmd = 0;

		if (priv->btmrvl_dev.hsmode) {
			ret = btmrvl_enable_hs(priv);
		} else {
			ret = priv->hw_wakeup_firmware(priv);
			priv->adapter->hs_state = HS_DEACTIVATED;
		}
	}

	return ret;
}

static int btmrvl_tx_pkt(struct btmrvl_private *priv, struct sk_buff *skb)
{
	int ret = 0;

	if (!skb || !skb->data)
		return -EINVAL;

	if (!skb->len || ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
		BT_ERR("Tx Error: Bad skb length %d : %d",
						skb->len, BTM_UPLD_SIZE);
		return -EINVAL;
	}

	if (skb_headroom(skb) < BTM_HEADER_LEN) {
		struct sk_buff *tmp = skb;

		skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
		if (!skb) {
			BT_ERR("Tx Error: realloc_headroom failed %d",
				BTM_HEADER_LEN);
			skb = tmp;
			return -EINVAL;
		}

		kfree_skb(tmp);
	}

	skb_push(skb, BTM_HEADER_LEN);

	/* header type: byte[3]
	 * HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
	 * header length: byte[2][1][0]
	 */

	skb->data[0] = (skb->len & 0x0000ff);
	skb->data[1] = (skb->len & 0x00ff00) >> 8;
	skb->data[2] = (skb->len & 0xff0000) >> 16;
	skb->data[3] = bt_cb(skb)->pkt_type;

	if (priv->hw_host_to_card)
		ret = priv->hw_host_to_card(priv, skb->data, skb->len);

	return ret;
}

static void btmrvl_init_adapter(struct btmrvl_private *priv)
{
	skb_queue_head_init(&priv->adapter->tx_queue);

	priv->adapter->ps_state = PS_AWAKE;

	init_waitqueue_head(&priv->adapter->cmd_wait_q);
}

static void btmrvl_free_adapter(struct btmrvl_private *priv)
{
	skb_queue_purge(&priv->adapter->tx_queue);

	kfree(priv->adapter);

	priv->adapter = NULL;
}

static int btmrvl_ioctl(struct hci_dev *hdev,
				unsigned int cmd, unsigned long arg)
{
	return -ENOIOCTLCMD;
}

static int btmrvl_send_frame(struct sk_buff *skb)
{
	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
	struct btmrvl_private *priv = NULL;

	BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);

	if (!hdev) {
		BT_ERR("Frame for unknown HCI device");
		return -ENODEV;
	}

	priv = hci_get_drvdata(hdev);

	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
		BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
		print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
							skb->data, skb->len);
		return -EBUSY;
	}

	switch (bt_cb(skb)->pkt_type) {
	case HCI_COMMAND_PKT:
		hdev->stat.cmd_tx++;
		break;

	case HCI_ACLDATA_PKT:
		hdev->stat.acl_tx++;
		break;

	case HCI_SCODATA_PKT:
		hdev->stat.sco_tx++;
		break;
	}

	skb_queue_tail(&priv->adapter->tx_queue, skb);

	wake_up_interruptible(&priv->main_thread.wait_q);

	return 0;
}

static int btmrvl_flush(struct hci_dev *hdev)
{
	struct btmrvl_private *priv = hci_get_drvdata(hdev);

	skb_queue_purge(&priv->adapter->tx_queue);

	return 0;
}

static int btmrvl_close(struct hci_dev *hdev)
{
	struct btmrvl_private *priv = hci_get_drvdata(hdev);

	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
		return 0;

	skb_queue_purge(&priv->adapter->tx_queue);

	return 0;
}

static int btmrvl_open(struct hci_dev *hdev)
{
	set_bit(HCI_RUNNING, &hdev->flags);

	return 0;
}

/*
 * This function handles the event generated by firmware, rx data
 * received from firmware, and tx data sent from kernel.
 */
static int btmrvl_service_main_thread(void *data)
{
	struct btmrvl_thread *thread = data;
	struct btmrvl_private *priv = thread->priv;
	struct btmrvl_adapter *adapter = priv->adapter;
	wait_queue_t wait;
	struct sk_buff *skb;
	ulong flags;

	init_waitqueue_entry(&wait, current);

	for (;;) {
		add_wait_queue(&thread->wait_q, &wait);

		set_current_state(TASK_INTERRUPTIBLE);
		if (kthread_should_stop()) {
			BT_DBG("main_thread: break from main thread");
			break;
		}

		if (adapter->wakeup_tries ||
				((!adapter->int_count) &&
				(!priv->btmrvl_dev.tx_dnld_rdy ||
				skb_queue_empty(&adapter->tx_queue)))) {
			BT_DBG("main_thread is sleeping...");
			schedule();
		}

		set_current_state(TASK_RUNNING);

		remove_wait_queue(&thread->wait_q, &wait);

		BT_DBG("main_thread woke up");

		spin_lock_irqsave(&priv->driver_lock, flags);
		if (adapter->int_count) {
			adapter->int_count = 0;
			spin_unlock_irqrestore(&priv->driver_lock, flags);
			priv->hw_process_int_status(priv);
		} else if (adapter->ps_state == PS_SLEEP &&
					!skb_queue_empty(&adapter->tx_queue)) {
			spin_unlock_irqrestore(&priv->driver_lock, flags);
			adapter->wakeup_tries++;
			priv->hw_wakeup_firmware(priv);
			continue;
		} else {
			spin_unlock_irqrestore(&priv->driver_lock, flags);
		}

		if (adapter->ps_state == PS_SLEEP)
			continue;

		if (!priv->btmrvl_dev.tx_dnld_rdy)
			continue;

		skb = skb_dequeue(&adapter->tx_queue);
		if (skb) {
			if (btmrvl_tx_pkt(priv, skb))
				priv->btmrvl_dev.hcidev->stat.err_tx++;
			else
				priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;

			kfree_skb(skb);
		}
	}

	return 0;
}

int btmrvl_register_hdev(struct btmrvl_private *priv)
{
	struct hci_dev *hdev = NULL;
	int ret;

	hdev = hci_alloc_dev();
	if (!hdev) {
		BT_ERR("Can not allocate HCI device");
		goto err_hdev;
	}

	priv->btmrvl_dev.hcidev = hdev;
	hci_set_drvdata(hdev, priv);

	hdev->bus = HCI_SDIO;
	hdev->open = btmrvl_open;
	hdev->close = btmrvl_close;
	hdev->flush = btmrvl_flush;
	hdev->send = btmrvl_send_frame;
	hdev->ioctl = btmrvl_ioctl;

	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);

	hdev->dev_type = priv->btmrvl_dev.dev_type;

	ret = hci_register_dev(hdev);
	if (ret < 0) {
		BT_ERR("Can not register HCI device");
		goto err_hci_register_dev;
	}

#ifdef CONFIG_DEBUG_FS
	btmrvl_debugfs_init(hdev);
#endif

	return 0;

err_hci_register_dev:
	hci_free_dev(hdev);

err_hdev:
	/* Stop the thread servicing the interrupts */
	kthread_stop(priv->main_thread.task);

	btmrvl_free_adapter(priv);
	kfree(priv);

	return -ENOMEM;
}
EXPORT_SYMBOL_GPL(btmrvl_register_hdev);

struct btmrvl_private *btmrvl_add_card(void *card)
{
	struct btmrvl_private *priv;

	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	if (!priv) {
		BT_ERR("Can not allocate priv");
		goto err_priv;
	}

	priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
	if (!priv->adapter) {
		BT_ERR("Allocate buffer for btmrvl_adapter failed!");
		goto err_adapter;
	}

	btmrvl_init_adapter(priv);

	BT_DBG("Starting kthread...");
	priv->main_thread.priv = priv;
	spin_lock_init(&priv->driver_lock);

	init_waitqueue_head(&priv->main_thread.wait_q);
	priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
				&priv->main_thread, "btmrvl_main_service");

	priv->btmrvl_dev.card = card;
	priv->btmrvl_dev.tx_dnld_rdy = true;

	return priv;

err_adapter:
	kfree(priv);

err_priv:
	return NULL;
}
EXPORT_SYMBOL_GPL(btmrvl_add_card);

int btmrvl_remove_card(struct btmrvl_private *priv)
{
	struct hci_dev *hdev;

	hdev = priv->btmrvl_dev.hcidev;

	wake_up_interruptible(&priv->adapter->cmd_wait_q);

	kthread_stop(priv->main_thread.task);

#ifdef CONFIG_DEBUG_FS
	btmrvl_debugfs_remove(hdev);
#endif

	hci_unregister_dev(hdev);

	hci_free_dev(hdev);

	priv->btmrvl_dev.hcidev = NULL;

	btmrvl_free_adapter(priv);

	kfree(priv);

	return 0;
}
EXPORT_SYMBOL_GPL(btmrvl_remove_card);

MODULE_AUTHOR("Marvell International Ltd.");
MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL v2");
Commit	Line	Data
132ff4e5 BZ	1	/**
	2	* Marvell Bluetooth driver
	3	*
	4	* Copyright (C) 2009, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	*
	15	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	18	* this warranty disclaimer.
	19	**/
	20
a59b968e PG	21	#include <linux/module.h>
a59b968e PG	22
132ff4e5 BZ	23	#include <net/bluetooth/bluetooth.h>
	24	#include <net/bluetooth/hci_core.h>
	25
	26	#include "btmrvl_drv.h"
	27
	28	#define VERSION "1.0"
	29
	30	/*
	31	* This function is called by interface specific interrupt handler.
	32	* It updates Power Save & Host Sleep states, and wakes up the main
	33	* thread.
	34	*/
	35	void btmrvl_interrupt(struct btmrvl_private *priv)
	36	{
132ff4e5 BZ	37	priv->adapter->ps_state = PS_AWAKE;
	38
	39	priv->adapter->wakeup_tries = 0;
	40
	41	priv->adapter->int_count++;
	42
	43	wake_up_interruptible(&priv->main_thread.wait_q);
132ff4e5 BZ	44	}
	45	EXPORT_SYMBOL_GPL(btmrvl_interrupt);
	46
ea1e76a3	47	bool btmrvl_check_evtpkt(struct btmrvl_private priv, struct sk_buff skb)
132ff4e5	48	{
4271e08d	49	struct hci_event_hdr hdr = (void ) skb->data;
132ff4e5	50
132ff4e5	51	if (hdr->evt == HCI_EV_CMD_COMPLETE) {
2c2453f3 AE	52	struct hci_ev_cmd_complete *ec;
	53	u16 opcode, ocf, ogf;
	54
4271e08d	55	ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
132ff4e5 BZ	56	opcode = __le16_to_cpu(ec->opcode);
132ff4e5 BZ	57	ocf = hci_opcode_ocf(opcode);
ea1e76a3 AE	58	ogf = hci_opcode_ogf(opcode);
ea1e76a3 AE	59
4271e08d MH	60	if (ocf == BT_CMD_MODULE_CFG_REQ &&
4271e08d MH	61	priv->btmrvl_dev.sendcmdflag) {
132ff4e5 BZ	62	priv->btmrvl_dev.sendcmdflag = false;
	63	priv->adapter->cmd_complete = true;
	64	wake_up_interruptible(&priv->adapter->cmd_wait_q);
	65	}
ea1e76a3 AE	66
ea1e76a3 AE	67	if (ogf == OGF) {
2c2453f3 AE	68	BT_DBG("vendor event skipped: ogf 0x%4.4x ocf 0x%4.4x",
2c2453f3 AE	69	ogf, ocf);
ea1e76a3 AE	70	kfree_skb(skb);
	71	return false;
	72	}
132ff4e5	73	}
ea1e76a3 AE	74
ea1e76a3 AE	75	return true;
132ff4e5 BZ	76	}
	77	EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
	78
	79	int btmrvl_process_event(struct btmrvl_private priv, struct sk_buff skb)
	80	{
	81	struct btmrvl_adapter *adapter = priv->adapter;
132ff4e5	82	struct btmrvl_event *event;
31f085fe	83	int ret = 0;
132ff4e5	84
132ff4e5 BZ	85	event = (struct btmrvl_event *) skb->data;
	86	if (event->ec != 0xff) {
	87	BT_DBG("Not Marvell Event=%x", event->ec);
	88	ret = -EINVAL;
	89	goto exit;
	90	}
	91
	92	switch (event->data[0]) {
	93	case BT_CMD_AUTO_SLEEP_MODE:
	94	if (!event->data[2]) {
	95	if (event->data[1] == BT_PS_ENABLE)
	96	adapter->psmode = 1;
	97	else
	98	adapter->psmode = 0;
	99	BT_DBG("PS Mode:%s",
	100	(adapter->psmode) ? "Enable" : "Disable");
	101	} else {
	102	BT_DBG("PS Mode command failed");
	103	}
	104	break;
	105
	106	case BT_CMD_HOST_SLEEP_CONFIG:
	107	if (!event->data[3])
	108	BT_DBG("gpio=%x, gap=%x", event->data[1],
4271e08d	109	event->data[2]);
132ff4e5 BZ	110	else
	111	BT_DBG("HSCFG command failed");
	112	break;
	113
	114	case BT_CMD_HOST_SLEEP_ENABLE:
	115	if (!event->data[1]) {
	116	adapter->hs_state = HS_ACTIVATED;
	117	if (adapter->psmode)
	118	adapter->ps_state = PS_SLEEP;
	119	wake_up_interruptible(&adapter->cmd_wait_q);
	120	BT_DBG("HS ACTIVATED!");
	121	} else {
	122	BT_DBG("HS Enable failed");
	123	}
	124	break;
	125
	126	case BT_CMD_MODULE_CFG_REQ:
4271e08d MH	127	if (priv->btmrvl_dev.sendcmdflag &&
4271e08d MH	128	event->data[1] == MODULE_BRINGUP_REQ) {
903c8437 BZ	129	BT_DBG("EVENT:%s",
	130	((event->data[2] == MODULE_BROUGHT_UP) \|\|
	131	(event->data[2] == MODULE_ALREADY_UP)) ?
	132	"Bring-up succeed" : "Bring-up failed");
f120c6b6	133
8f1e1742 DV	134	if (event->length > 3 && event->data[3])
8f1e1742 DV	135	priv->btmrvl_dev.dev_type = HCI_AMP;
f120c6b6 BZ	136	else
	137	priv->btmrvl_dev.dev_type = HCI_BREDR;
	138
	139	BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type);
4271e08d MH	140	} else if (priv->btmrvl_dev.sendcmdflag &&
4271e08d MH	141	event->data[1] == MODULE_SHUTDOWN_REQ) {
132ff4e5 BZ	142	BT_DBG("EVENT:%s", (event->data[2]) ?
	143	"Shutdown failed" : "Shutdown succeed");
	144	} else {
	145	BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
	146	ret = -EINVAL;
	147	}
	148	break;
	149
	150	case BT_EVENT_POWER_STATE:
	151	if (event->data[1] == BT_PS_SLEEP)
	152	adapter->ps_state = PS_SLEEP;
	153	BT_DBG("EVENT:%s",
	154	(adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
	155	break;
	156
	157	default:
	158	BT_DBG("Unknown Event=%d", event->data[0]);
	159	ret = -EINVAL;
	160	break;
	161	}
	162
	163	exit:
	164	if (!ret)
	165	kfree_skb(skb);
	166
132ff4e5 BZ	167	return ret;
	168	}
	169	EXPORT_SYMBOL_GPL(btmrvl_process_event);
	170
	171	int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
	172	{
4271e08d	173	struct sk_buff *skb;
132ff4e5	174	struct btmrvl_cmd *cmd;
9374253f	175	int ret = 0;
132ff4e5 BZ	176
	177	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	178	if (skb == NULL) {
	179	BT_ERR("No free skb");
9374253f	180	return -ENOMEM;
132ff4e5 BZ	181	}
132ff4e5 BZ	182
e0721f99	183	cmd = (struct btmrvl_cmd ) skb_put(skb, sizeof(cmd));
91d69730	184	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
132ff4e5 BZ	185	cmd->length = 1;
	186	cmd->data[0] = subcmd;
	187
	188	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
	189
4271e08d	190	skb->dev = (void *) priv->btmrvl_dev.hcidev;
132ff4e5 BZ	191	skb_queue_head(&priv->adapter->tx_queue, skb);
	192
	193	priv->btmrvl_dev.sendcmdflag = true;
	194
	195	priv->adapter->cmd_complete = false;
	196
	197	BT_DBG("Queue module cfg Command");
	198
	199	wake_up_interruptible(&priv->main_thread.wait_q);
	200
4271e08d MH	201	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
	202	priv->adapter->cmd_complete,
	203	msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
132ff4e5 BZ	204	ret = -ETIMEDOUT;
132ff4e5 BZ	205	BT_ERR("module_cfg_cmd(%x): timeout: %d",
4271e08d	206	subcmd, priv->btmrvl_dev.sendcmdflag);
132ff4e5 BZ	207	}
	208
	209	BT_DBG("module cfg Command done");
	210
132ff4e5 BZ	211	return ret;
	212	}
	213	EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
	214
2a8ff611 AK	215	int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
	216	{
	217	struct sk_buff *skb;
	218	struct btmrvl_cmd *cmd;
	219
	220	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	221	if (!skb) {
	222	BT_ERR("No free skb");
	223	return -ENOMEM;
	224	}
	225
	226	cmd = (struct btmrvl_cmd ) skb_put(skb, sizeof(cmd));
	227	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
	228	BT_CMD_HOST_SLEEP_CONFIG));
	229	cmd->length = 2;
	230	cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
	231	cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
	232
	233	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
	234
	235	skb->dev = (void *) priv->btmrvl_dev.hcidev;
	236	skb_queue_head(&priv->adapter->tx_queue, skb);
	237
	238	BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", cmd->data[0],
	239	cmd->data[1]);
	240
	241	return 0;
	242	}
	243	EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
	244
32fd6398 AK	245	int btmrvl_enable_ps(struct btmrvl_private *priv)
	246	{
	247	struct sk_buff *skb;
	248	struct btmrvl_cmd *cmd;
	249
	250	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	251	if (skb == NULL) {
	252	BT_ERR("No free skb");
	253	return -ENOMEM;
	254	}
	255
	256	cmd = (struct btmrvl_cmd ) skb_put(skb, sizeof(cmd));
	257	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
	258	BT_CMD_AUTO_SLEEP_MODE));
	259	cmd->length = 1;
	260
	261	if (priv->btmrvl_dev.psmode)
	262	cmd->data[0] = BT_PS_ENABLE;
	263	else
	264	cmd->data[0] = BT_PS_DISABLE;
	265
	266	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
	267
	268	skb->dev = (void *) priv->btmrvl_dev.hcidev;
	269	skb_queue_head(&priv->adapter->tx_queue, skb);
	270
	271	BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);
	272
	273	return 0;
	274	}
	275	EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
	276
ba54a16f	277	int btmrvl_enable_hs(struct btmrvl_private *priv)
132ff4e5	278	{
4271e08d	279	struct sk_buff *skb;
132ff4e5	280	struct btmrvl_cmd *cmd;
9374253f	281	int ret = 0;
132ff4e5 BZ	282
	283	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
	284	if (skb == NULL) {
	285	BT_ERR("No free skb");
9374253f	286	return -ENOMEM;
132ff4e5 BZ	287	}
132ff4e5 BZ	288
e0721f99	289	cmd = (struct btmrvl_cmd ) skb_put(skb, sizeof(cmd));
91d69730	290	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
132ff4e5 BZ	291	cmd->length = 0;
	292
	293	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
	294
4271e08d	295	skb->dev = (void *) priv->btmrvl_dev.hcidev;
132ff4e5 BZ	296	skb_queue_head(&priv->adapter->tx_queue, skb);
	297
	298	BT_DBG("Queue hs enable Command");
	299
	300	wake_up_interruptible(&priv->main_thread.wait_q);
	301
4271e08d	302	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
132ff4e5 BZ	303	priv->adapter->hs_state,
	304	msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
	305	ret = -ETIMEDOUT;
4271e08d MH	306	BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
	307	priv->adapter->ps_state,
	308	priv->adapter->wakeup_tries);
132ff4e5 BZ	309	}
132ff4e5 BZ	310
132ff4e5 BZ	311	return ret;
132ff4e5 BZ	312	}
ba54a16f	313	EXPORT_SYMBOL_GPL(btmrvl_enable_hs);
132ff4e5 BZ	314
	315	int btmrvl_prepare_command(struct btmrvl_private *priv)
	316	{
9374253f	317	int ret = 0;
132ff4e5 BZ	318
	319	if (priv->btmrvl_dev.hscfgcmd) {
	320	priv->btmrvl_dev.hscfgcmd = 0;
2a8ff611	321	btmrvl_send_hscfg_cmd(priv);
132ff4e5 BZ	322	}
	323
	324	if (priv->btmrvl_dev.pscmd) {
	325	priv->btmrvl_dev.pscmd = 0;
32fd6398	326	btmrvl_enable_ps(priv);
132ff4e5 BZ	327	}
	328
	329	if (priv->btmrvl_dev.hscmd) {
	330	priv->btmrvl_dev.hscmd = 0;
	331
	332	if (priv->btmrvl_dev.hsmode) {
	333	ret = btmrvl_enable_hs(priv);
	334	} else {
	335	ret = priv->hw_wakeup_firmware(priv);
	336	priv->adapter->hs_state = HS_DEACTIVATED;
	337	}
	338	}
	339
132ff4e5 BZ	340	return ret;
	341	}
	342
	343	static int btmrvl_tx_pkt(struct btmrvl_private priv, struct sk_buff skb)
	344	{
9374253f	345	int ret = 0;
132ff4e5	346
9374253f	347	if (!skb \|\| !skb->data)
132ff4e5	348	return -EINVAL;
132ff4e5 BZ	349
	350	if (!skb->len \|\| ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
	351	BT_ERR("Tx Error: Bad skb length %d : %d",
4271e08d	352	skb->len, BTM_UPLD_SIZE);
132ff4e5 BZ	353	return -EINVAL;
	354	}
	355
	356	if (skb_headroom(skb) < BTM_HEADER_LEN) {
	357	struct sk_buff *tmp = skb;
	358
	359	skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
	360	if (!skb) {
	361	BT_ERR("Tx Error: realloc_headroom failed %d",
	362	BTM_HEADER_LEN);
	363	skb = tmp;
132ff4e5 BZ	364	return -EINVAL;
	365	}
	366
	367	kfree_skb(tmp);
	368	}
	369
	370	skb_push(skb, BTM_HEADER_LEN);
	371
	372	/* header type: byte[3]
	373	* HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
	374	* header length: byte[2][1][0]
	375	*/
	376
	377	skb->data[0] = (skb->len & 0x0000ff);
	378	skb->data[1] = (skb->len & 0x00ff00) >> 8;
	379	skb->data[2] = (skb->len & 0xff0000) >> 16;
	380	skb->data[3] = bt_cb(skb)->pkt_type;
	381
	382	if (priv->hw_host_to_card)
	383	ret = priv->hw_host_to_card(priv, skb->data, skb->len);
	384
132ff4e5 BZ	385	return ret;
	386	}
	387
	388	static void btmrvl_init_adapter(struct btmrvl_private *priv)
	389	{
132ff4e5 BZ	390	skb_queue_head_init(&priv->adapter->tx_queue);
	391
	392	priv->adapter->ps_state = PS_AWAKE;
	393
	394	init_waitqueue_head(&priv->adapter->cmd_wait_q);
132ff4e5 BZ	395	}
	396
	397	static void btmrvl_free_adapter(struct btmrvl_private *priv)
	398	{
132ff4e5 BZ	399	skb_queue_purge(&priv->adapter->tx_queue);
	400
	401	kfree(priv->adapter);
	402
	403	priv->adapter = NULL;
132ff4e5 BZ	404	}
132ff4e5 BZ	405
4271e08d MH	406	static int btmrvl_ioctl(struct hci_dev *hdev,
4271e08d MH	407	unsigned int cmd, unsigned long arg)
132ff4e5	408	{
132ff4e5 BZ	409	return -ENOIOCTLCMD;
	410	}
	411
132ff4e5 BZ	412	static int btmrvl_send_frame(struct sk_buff *skb)
132ff4e5 BZ	413	{
4271e08d	414	struct hci_dev hdev = (struct hci_dev ) skb->dev;
132ff4e5 BZ	415	struct btmrvl_private *priv = NULL;
132ff4e5 BZ	416
9374253f	417	BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
132ff4e5	418
155961e8	419	if (!hdev) {
132ff4e5	420	BT_ERR("Frame for unknown HCI device");
132ff4e5 BZ	421	return -ENODEV;
	422	}
	423
155961e8 DH	424	priv = hci_get_drvdata(hdev);
155961e8 DH	425
132ff4e5 BZ	426	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
	427	BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
	428	print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
4271e08d	429	skb->data, skb->len);
132ff4e5 BZ	430	return -EBUSY;
	431	}
	432
	433	switch (bt_cb(skb)->pkt_type) {
	434	case HCI_COMMAND_PKT:
	435	hdev->stat.cmd_tx++;
	436	break;
	437
	438	case HCI_ACLDATA_PKT:
	439	hdev->stat.acl_tx++;
	440	break;
	441
	442	case HCI_SCODATA_PKT:
	443	hdev->stat.sco_tx++;
	444	break;
	445	}
	446
	447	skb_queue_tail(&priv->adapter->tx_queue, skb);
	448
	449	wake_up_interruptible(&priv->main_thread.wait_q);
	450
132ff4e5 BZ	451	return 0;
	452	}
	453
	454	static int btmrvl_flush(struct hci_dev *hdev)
	455	{
155961e8	456	struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5	457
132ff4e5 BZ	458	skb_queue_purge(&priv->adapter->tx_queue);
132ff4e5 BZ	459
132ff4e5 BZ	460	return 0;
	461	}
	462
	463	static int btmrvl_close(struct hci_dev *hdev)
	464	{
155961e8	465	struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5	466
9374253f	467	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
132ff4e5	468	return 0;
132ff4e5 BZ	469
	470	skb_queue_purge(&priv->adapter->tx_queue);
	471
132ff4e5 BZ	472	return 0;
	473	}
	474
	475	static int btmrvl_open(struct hci_dev *hdev)
	476	{
132ff4e5 BZ	477	set_bit(HCI_RUNNING, &hdev->flags);
132ff4e5 BZ	478
132ff4e5 BZ	479	return 0;
	480	}
	481
	482	/*
	483	* This function handles the event generated by firmware, rx data
	484	* received from firmware, and tx data sent from kernel.
	485	*/
	486	static int btmrvl_service_main_thread(void *data)
	487	{
	488	struct btmrvl_thread *thread = data;
	489	struct btmrvl_private *priv = thread->priv;
	490	struct btmrvl_adapter *adapter = priv->adapter;
	491	wait_queue_t wait;
	492	struct sk_buff *skb;
	493	ulong flags;
	494
132ff4e5 BZ	495	init_waitqueue_entry(&wait, current);
132ff4e5 BZ	496
132ff4e5 BZ	497	for (;;) {
	498	add_wait_queue(&thread->wait_q, &wait);
	499
	500	set_current_state(TASK_INTERRUPTIBLE);
ea05fea9 DD	501	if (kthread_should_stop()) {
	502	BT_DBG("main_thread: break from main thread");
	503	break;
	504	}
132ff4e5 BZ	505
132ff4e5 BZ	506	if (adapter->wakeup_tries \|\|
4271e08d MH	507	((!adapter->int_count) &&
	508	(!priv->btmrvl_dev.tx_dnld_rdy \|\|
	509	skb_queue_empty(&adapter->tx_queue)))) {
132ff4e5 BZ	510	BT_DBG("main_thread is sleeping...");
	511	schedule();
	512	}
	513
	514	set_current_state(TASK_RUNNING);
	515
	516	remove_wait_queue(&thread->wait_q, &wait);
	517
	518	BT_DBG("main_thread woke up");
	519
132ff4e5 BZ	520	spin_lock_irqsave(&priv->driver_lock, flags);
	521	if (adapter->int_count) {
	522	adapter->int_count = 0;
d1d10d78 AK	523	spin_unlock_irqrestore(&priv->driver_lock, flags);
d1d10d78 AK	524	priv->hw_process_int_status(priv);
4271e08d MH	525	} else if (adapter->ps_state == PS_SLEEP &&
4271e08d MH	526	!skb_queue_empty(&adapter->tx_queue)) {
132ff4e5 BZ	527	spin_unlock_irqrestore(&priv->driver_lock, flags);
	528	adapter->wakeup_tries++;
	529	priv->hw_wakeup_firmware(priv);
	530	continue;
d1d10d78 AK	531	} else {
d1d10d78 AK	532	spin_unlock_irqrestore(&priv->driver_lock, flags);
132ff4e5	533	}
132ff4e5 BZ	534
	535	if (adapter->ps_state == PS_SLEEP)
	536	continue;
	537
	538	if (!priv->btmrvl_dev.tx_dnld_rdy)
	539	continue;
	540
	541	skb = skb_dequeue(&adapter->tx_queue);
	542	if (skb) {
	543	if (btmrvl_tx_pkt(priv, skb))
	544	priv->btmrvl_dev.hcidev->stat.err_tx++;
	545	else
4271e08d	546	priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
132ff4e5 BZ	547
	548	kfree_skb(skb);
	549	}
	550	}
	551
132ff4e5 BZ	552	return 0;
	553	}
	554
64061607	555	int btmrvl_register_hdev(struct btmrvl_private *priv)
132ff4e5 BZ	556	{
132ff4e5 BZ	557	struct hci_dev *hdev = NULL;
132ff4e5 BZ	558	int ret;
132ff4e5 BZ	559
132ff4e5 BZ	560	hdev = hci_alloc_dev();
	561	if (!hdev) {
	562	BT_ERR("Can not allocate HCI device");
	563	goto err_hdev;
	564	}
	565
132ff4e5	566	priv->btmrvl_dev.hcidev = hdev;
155961e8	567	hci_set_drvdata(hdev, priv);
132ff4e5	568
c13854ce	569	hdev->bus = HCI_SDIO;
132ff4e5 BZ	570	hdev->open = btmrvl_open;
	571	hdev->close = btmrvl_close;
	572	hdev->flush = btmrvl_flush;
	573	hdev->send = btmrvl_send_frame;
132ff4e5	574	hdev->ioctl = btmrvl_ioctl;
132ff4e5	575
64061607 BZ	576	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
64061607 BZ	577
f120c6b6 BZ	578	hdev->dev_type = priv->btmrvl_dev.dev_type;
f120c6b6 BZ	579
132ff4e5 BZ	580	ret = hci_register_dev(hdev);
	581	if (ret < 0) {
	582	BT_ERR("Can not register HCI device");
	583	goto err_hci_register_dev;
	584	}
	585
fb784f05 BZ	586	#ifdef CONFIG_DEBUG_FS
	587	btmrvl_debugfs_init(hdev);
	588	#endif
	589
64061607	590	return 0;
132ff4e5 BZ	591
132ff4e5 BZ	592	err_hci_register_dev:
132ff4e5 BZ	593	hci_free_dev(hdev);
	594
	595	err_hdev:
64061607 BZ	596	/* Stop the thread servicing the interrupts */
	597	kthread_stop(priv->main_thread.task);
	598
132ff4e5	599	btmrvl_free_adapter(priv);
64061607 BZ	600	kfree(priv);
	601
	602	return -ENOMEM;
	603	}
	604	EXPORT_SYMBOL_GPL(btmrvl_register_hdev);
	605
	606	struct btmrvl_private btmrvl_add_card(void card)
	607	{
	608	struct btmrvl_private *priv;
	609
	610	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	611	if (!priv) {
	612	BT_ERR("Can not allocate priv");
	613	goto err_priv;
	614	}
	615
	616	priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
	617	if (!priv->adapter) {
	618	BT_ERR("Allocate buffer for btmrvl_adapter failed!");
	619	goto err_adapter;
	620	}
	621
	622	btmrvl_init_adapter(priv);
	623
	624	BT_DBG("Starting kthread...");
	625	priv->main_thread.priv = priv;
	626	spin_lock_init(&priv->driver_lock);
	627
	628	init_waitqueue_head(&priv->main_thread.wait_q);
	629	priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
	630	&priv->main_thread, "btmrvl_main_service");
	631
	632	priv->btmrvl_dev.card = card;
	633	priv->btmrvl_dev.tx_dnld_rdy = true;
	634
	635	return priv;
132ff4e5 BZ	636
	637	err_adapter:
	638	kfree(priv);
	639
	640	err_priv:
132ff4e5 BZ	641	return NULL;
	642	}
	643	EXPORT_SYMBOL_GPL(btmrvl_add_card);
	644
	645	int btmrvl_remove_card(struct btmrvl_private *priv)
	646	{
	647	struct hci_dev *hdev;
	648
132ff4e5 BZ	649	hdev = priv->btmrvl_dev.hcidev;
	650
	651	wake_up_interruptible(&priv->adapter->cmd_wait_q);
	652
	653	kthread_stop(priv->main_thread.task);
	654
fb784f05 BZ	655	#ifdef CONFIG_DEBUG_FS
	656	btmrvl_debugfs_remove(hdev);
	657	#endif
	658
132ff4e5 BZ	659	hci_unregister_dev(hdev);
	660
	661	hci_free_dev(hdev);
	662
	663	priv->btmrvl_dev.hcidev = NULL;
	664
	665	btmrvl_free_adapter(priv);
	666
	667	kfree(priv);
	668
132ff4e5 BZ	669	return 0;
	670	}
	671	EXPORT_SYMBOL_GPL(btmrvl_remove_card);
	672
	673	MODULE_AUTHOR("Marvell International Ltd.");
9666fb35	674	MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
132ff4e5 BZ	675	MODULE_VERSION(VERSION);
132ff4e5 BZ	676	MODULE_LICENSE("GPL v2");