[linux-2.6-block.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 <linux/of.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "btmrvl_drv.h"
#include "btmrvl_sdio.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;

		ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
		opcode = __le16_to_cpu(ec->opcode);

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

			if (hci_opcode_ogf(opcode) == 0x3F) {
				BT_DBG("vendor event skipped: opcode=%#4.4x",
				       opcode);
				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_EVENT_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_EVENT_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_EVENT_HOST_SLEEP_ENABLE:
		if (!event->data[1]) {
			adapter->hs_state = HS_ACTIVATED;
			if (adapter->psmode)
				adapter->ps_state = PS_SLEEP;
			BT_DBG("HS ACTIVATED!");
		} else {
			BT_DBG("HS Enable failed");
		}
		break;

	case BT_EVENT_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);

static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode,
				const void *param, u8 len)
{
	struct sk_buff *skb;
	struct hci_command_hdr *hdr;

	skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
	if (skb == NULL) {
		BT_ERR("No free skb");
		return -ENOMEM;
	}

	hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE);
	hdr->opcode = cpu_to_le16(opcode);
	hdr->plen = len;

	if (len)
		memcpy(skb_put(skb, len), param, len);

	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;

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

	priv->btmrvl_dev.sendcmdflag = true;

	priv->adapter->cmd_complete = false;

	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)))
		return -ETIMEDOUT;

	return 0;
}

int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
{
	int ret;

	ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
	if (ret)
		BT_ERR("module_cfg_cmd(%x) failed\n", subcmd);

	return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);

int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
{
	int ret;
	u8 param[2];

	param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
	param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);

	BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
	       param[0], param[1]);

	ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
	if (ret)
		BT_ERR("HSCFG command failed\n");

	return ret;
}
EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);

int btmrvl_enable_ps(struct btmrvl_private *priv)
{
	int ret;
	u8 param;

	if (priv->btmrvl_dev.psmode)
		param = BT_PS_ENABLE;
	else
		param = BT_PS_DISABLE;

	ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
	if (ret)
		BT_ERR("PSMODE command failed\n");

	return 0;
}
EXPORT_SYMBOL_GPL(btmrvl_enable_ps);

int btmrvl_enable_hs(struct btmrvl_private *priv)
{
	int ret;

	ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
	if (ret)
		BT_ERR("Host sleep enable command failed\n");

	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)
{
	int buf_size;

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

	priv->adapter->ps_state = PS_AWAKE;

	buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN);
	priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL);
	if (!priv->adapter->hw_regs_buf) {
		priv->adapter->hw_regs = NULL;
		BT_ERR("Unable to allocate buffer for hw_regs.");
	} else {
		priv->adapter->hw_regs =
			(u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf,
					 BTSDIO_DMA_ALIGN);
		BT_DBG("hw_regs_buf=%p hw_regs=%p",
		       priv->adapter->hw_regs_buf, priv->adapter->hw_regs);
	}

	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->hw_regs_buf);
	kfree(priv->adapter);

	priv->adapter = NULL;
}

static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
{
	struct btmrvl_private *priv = hci_get_drvdata(hdev);

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

	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;
}

static int btmrvl_download_cal_data(struct btmrvl_private *priv,
				    u8 *data, int len)
{
	int ret;

	data[0] = 0x00;
	data[1] = 0x00;
	data[2] = 0x00;
	data[3] = len;

	print_hex_dump_bytes("Calibration data: ",
			     DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len);

	ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
				   BT_CAL_HDR_LEN + len);
	if (ret)
		BT_ERR("Failed to download caibration data\n");

	return 0;
}

static int btmrvl_cal_data_dt(struct btmrvl_private *priv)
{
	struct device_node *dt_node;
	u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
	const char name[] = "btmrvl_caldata";
	const char property[] = "btmrvl,caldata";
	int ret;

	dt_node = of_find_node_by_name(NULL, name);
	if (!dt_node)
		return -ENODEV;

	ret = of_property_read_u8_array(dt_node, property,
					cal_data + BT_CAL_HDR_LEN,
					BT_CAL_DATA_SIZE);
	if (ret)
		return ret;

	BT_DBG("Use cal data from device tree");
	ret = btmrvl_download_cal_data(priv, cal_data, BT_CAL_DATA_SIZE);
	if (ret) {
		BT_ERR("Fail to download calibrate data");
		return ret;
	}

	return 0;
}

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

	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);

	btmrvl_cal_data_dt(priv);

	priv->btmrvl_dev.psmode = 1;
	btmrvl_enable_ps(priv);

	priv->btmrvl_dev.gpio_gap = 0xffff;
	btmrvl_send_hscfg_cmd(priv);

	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->setup = btmrvl_setup;

	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	21	#include <linux/module.h>
433a9389	22	#include <linux/of.h>
132ff4e5 BZ	23	#include <net/bluetooth/bluetooth.h>
	24	#include <net/bluetooth/hci_core.h>
	25
	26	#include "btmrvl_drv.h"
0d367408	27	#include "btmrvl_sdio.h"
132ff4e5 BZ	28
	29	#define VERSION "1.0"
	30
	31	/*
	32	* This function is called by interface specific interrupt handler.
	33	* It updates Power Save & Host Sleep states, and wakes up the main
	34	* thread.
	35	*/
	36	void btmrvl_interrupt(struct btmrvl_private *priv)
	37	{
132ff4e5 BZ	38	priv->adapter->ps_state = PS_AWAKE;
	39
	40	priv->adapter->wakeup_tries = 0;
	41
	42	priv->adapter->int_count++;
	43
	44	wake_up_interruptible(&priv->main_thread.wait_q);
132ff4e5 BZ	45	}
	46	EXPORT_SYMBOL_GPL(btmrvl_interrupt);
	47
ea1e76a3	48	bool btmrvl_check_evtpkt(struct btmrvl_private priv, struct sk_buff skb)
132ff4e5	49	{
4271e08d	50	struct hci_event_hdr hdr = (void ) skb->data;
132ff4e5	51
132ff4e5	52	if (hdr->evt == HCI_EV_CMD_COMPLETE) {
2c2453f3	53	struct hci_ev_cmd_complete *ec;
3e4543ab	54	u16 opcode;
2c2453f3	55
4271e08d	56	ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE);
132ff4e5	57	opcode = __le16_to_cpu(ec->opcode);
ea1e76a3	58
c037874c	59	if (priv->btmrvl_dev.sendcmdflag) {
132ff4e5 BZ	60	priv->btmrvl_dev.sendcmdflag = false;
	61	priv->adapter->cmd_complete = true;
	62	wake_up_interruptible(&priv->adapter->cmd_wait_q);
ea1e76a3	63
d986b4a6 AK	64	if (hci_opcode_ogf(opcode) == 0x3F) {
	65	BT_DBG("vendor event skipped: opcode=%#4.4x",
	66	opcode);
	67	kfree_skb(skb);
	68	return false;
	69	}
ea1e76a3	70	}
132ff4e5	71	}
ea1e76a3 AE	72
ea1e76a3 AE	73	return true;
132ff4e5 BZ	74	}
	75	EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt);
	76
	77	int btmrvl_process_event(struct btmrvl_private priv, struct sk_buff skb)
	78	{
	79	struct btmrvl_adapter *adapter = priv->adapter;
132ff4e5	80	struct btmrvl_event *event;
31f085fe	81	int ret = 0;
132ff4e5	82
132ff4e5 BZ	83	event = (struct btmrvl_event *) skb->data;
	84	if (event->ec != 0xff) {
	85	BT_DBG("Not Marvell Event=%x", event->ec);
	86	ret = -EINVAL;
	87	goto exit;
	88	}
	89
	90	switch (event->data[0]) {
3e4543ab	91	case BT_EVENT_AUTO_SLEEP_MODE:
132ff4e5 BZ	92	if (!event->data[2]) {
	93	if (event->data[1] == BT_PS_ENABLE)
	94	adapter->psmode = 1;
	95	else
	96	adapter->psmode = 0;
	97	BT_DBG("PS Mode:%s",
	98	(adapter->psmode) ? "Enable" : "Disable");
	99	} else {
	100	BT_DBG("PS Mode command failed");
	101	}
	102	break;
	103
3e4543ab	104	case BT_EVENT_HOST_SLEEP_CONFIG:
132ff4e5 BZ	105	if (!event->data[3])
132ff4e5 BZ	106	BT_DBG("gpio=%x, gap=%x", event->data[1],
4271e08d	107	event->data[2]);
132ff4e5 BZ	108	else
	109	BT_DBG("HSCFG command failed");
	110	break;
	111
3e4543ab	112	case BT_EVENT_HOST_SLEEP_ENABLE:
132ff4e5 BZ	113	if (!event->data[1]) {
	114	adapter->hs_state = HS_ACTIVATED;
	115	if (adapter->psmode)
	116	adapter->ps_state = PS_SLEEP;
132ff4e5 BZ	117	BT_DBG("HS ACTIVATED!");
	118	} else {
	119	BT_DBG("HS Enable failed");
	120	}
	121	break;
	122
3e4543ab	123	case BT_EVENT_MODULE_CFG_REQ:
4271e08d MH	124	if (priv->btmrvl_dev.sendcmdflag &&
4271e08d MH	125	event->data[1] == MODULE_BRINGUP_REQ) {
903c8437 BZ	126	BT_DBG("EVENT:%s",
	127	((event->data[2] == MODULE_BROUGHT_UP) \|\|
	128	(event->data[2] == MODULE_ALREADY_UP)) ?
	129	"Bring-up succeed" : "Bring-up failed");
f120c6b6	130
8f1e1742 DV	131	if (event->length > 3 && event->data[3])
8f1e1742 DV	132	priv->btmrvl_dev.dev_type = HCI_AMP;
f120c6b6 BZ	133	else
	134	priv->btmrvl_dev.dev_type = HCI_BREDR;
	135
	136	BT_DBG("dev_type: %d", priv->btmrvl_dev.dev_type);
4271e08d MH	137	} else if (priv->btmrvl_dev.sendcmdflag &&
4271e08d MH	138	event->data[1] == MODULE_SHUTDOWN_REQ) {
132ff4e5 BZ	139	BT_DBG("EVENT:%s", (event->data[2]) ?
	140	"Shutdown failed" : "Shutdown succeed");
	141	} else {
	142	BT_DBG("BT_CMD_MODULE_CFG_REQ resp for APP");
	143	ret = -EINVAL;
	144	}
	145	break;
	146
	147	case BT_EVENT_POWER_STATE:
	148	if (event->data[1] == BT_PS_SLEEP)
	149	adapter->ps_state = PS_SLEEP;
	150	BT_DBG("EVENT:%s",
	151	(adapter->ps_state) ? "PS_SLEEP" : "PS_AWAKE");
	152	break;
	153
	154	default:
	155	BT_DBG("Unknown Event=%d", event->data[0]);
	156	ret = -EINVAL;
	157	break;
	158	}
	159
	160	exit:
	161	if (!ret)
	162	kfree_skb(skb);
	163
132ff4e5 BZ	164	return ret;
	165	}
	166	EXPORT_SYMBOL_GPL(btmrvl_process_event);
	167
3e4543ab	168	static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 opcode,
c037874c	169	const void *param, u8 len)
132ff4e5	170	{
4271e08d	171	struct sk_buff *skb;
7d5b400c	172	struct hci_command_hdr *hdr;
132ff4e5	173
7d5b400c	174	skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
132ff4e5 BZ	175	if (skb == NULL) {
132ff4e5 BZ	176	BT_ERR("No free skb");
9374253f	177	return -ENOMEM;
132ff4e5 BZ	178	}
132ff4e5 BZ	179
7d5b400c	180	hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE);
3e4543ab	181	hdr->opcode = cpu_to_le16(opcode);
7d5b400c	182	hdr->plen = len;
c037874c AK	183
c037874c AK	184	if (len)
7d5b400c	185	memcpy(skb_put(skb, len), param, len);
132ff4e5 BZ	186
	187	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
	188
132ff4e5 BZ	189	skb_queue_head(&priv->adapter->tx_queue, skb);
	190
	191	priv->btmrvl_dev.sendcmdflag = true;
	192
	193	priv->adapter->cmd_complete = false;
	194
132ff4e5 BZ	195	wake_up_interruptible(&priv->main_thread.wait_q);
132ff4e5 BZ	196
4271e08d MH	197	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
4271e08d MH	198	priv->adapter->cmd_complete,
c037874c AK	199	msecs_to_jiffies(WAIT_UNTIL_CMD_RESP)))
	200	return -ETIMEDOUT;
	201
	202	return 0;
	203	}
132ff4e5	204
7125df53	205	int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, u8 subcmd)
c037874c AK	206	{
	207	int ret;
	208
	209	ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
	210	if (ret)
	211	BT_ERR("module_cfg_cmd(%x) failed\n", subcmd);
132ff4e5	212
132ff4e5 BZ	213	return ret;
	214	}
	215	EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
	216
2a8ff611 AK	217	int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
2a8ff611 AK	218	{
c037874c AK	219	int ret;
c037874c AK	220	u8 param[2];
2a8ff611	221
c037874c AK	222	param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
c037874c AK	223	param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
2a8ff611	224
c037874c AK	225	BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
c037874c AK	226	param[0], param[1]);
2a8ff611	227
c037874c AK	228	ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
	229	if (ret)
	230	BT_ERR("HSCFG command failed\n");
2a8ff611	231
c037874c	232	return ret;
2a8ff611 AK	233	}
	234	EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
	235
32fd6398 AK	236	int btmrvl_enable_ps(struct btmrvl_private *priv)
32fd6398 AK	237	{
c037874c AK	238	int ret;
c037874c AK	239	u8 param;
32fd6398 AK	240
32fd6398 AK	241	if (priv->btmrvl_dev.psmode)
c037874c	242	param = BT_PS_ENABLE;
32fd6398	243	else
c037874c	244	param = BT_PS_DISABLE;
32fd6398	245
c037874c AK	246	ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
	247	if (ret)
	248	BT_ERR("PSMODE command failed\n");
32fd6398 AK	249
	250	return 0;
	251	}
	252	EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
	253
ba54a16f	254	int btmrvl_enable_hs(struct btmrvl_private *priv)
132ff4e5	255	{
c037874c	256	int ret;
132ff4e5	257
c037874c AK	258	ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
	259	if (ret)
	260	BT_ERR("Host sleep enable command failed\n");
132ff4e5	261
132ff4e5 BZ	262	return ret;
132ff4e5 BZ	263	}
ba54a16f	264	EXPORT_SYMBOL_GPL(btmrvl_enable_hs);
132ff4e5 BZ	265
	266	int btmrvl_prepare_command(struct btmrvl_private *priv)
	267	{
9374253f	268	int ret = 0;
132ff4e5 BZ	269
	270	if (priv->btmrvl_dev.hscfgcmd) {
	271	priv->btmrvl_dev.hscfgcmd = 0;
2a8ff611	272	btmrvl_send_hscfg_cmd(priv);
132ff4e5 BZ	273	}
	274
	275	if (priv->btmrvl_dev.pscmd) {
	276	priv->btmrvl_dev.pscmd = 0;
32fd6398	277	btmrvl_enable_ps(priv);
132ff4e5 BZ	278	}
	279
	280	if (priv->btmrvl_dev.hscmd) {
	281	priv->btmrvl_dev.hscmd = 0;
	282
	283	if (priv->btmrvl_dev.hsmode) {
	284	ret = btmrvl_enable_hs(priv);
	285	} else {
	286	ret = priv->hw_wakeup_firmware(priv);
	287	priv->adapter->hs_state = HS_DEACTIVATED;
	288	}
	289	}
	290
132ff4e5 BZ	291	return ret;
	292	}
	293
	294	static int btmrvl_tx_pkt(struct btmrvl_private priv, struct sk_buff skb)
	295	{
9374253f	296	int ret = 0;
132ff4e5	297
9374253f	298	if (!skb \|\| !skb->data)
132ff4e5	299	return -EINVAL;
132ff4e5 BZ	300
	301	if (!skb->len \|\| ((skb->len + BTM_HEADER_LEN) > BTM_UPLD_SIZE)) {
	302	BT_ERR("Tx Error: Bad skb length %d : %d",
4271e08d	303	skb->len, BTM_UPLD_SIZE);
132ff4e5 BZ	304	return -EINVAL;
	305	}
	306
	307	if (skb_headroom(skb) < BTM_HEADER_LEN) {
	308	struct sk_buff *tmp = skb;
	309
	310	skb = skb_realloc_headroom(skb, BTM_HEADER_LEN);
	311	if (!skb) {
	312	BT_ERR("Tx Error: realloc_headroom failed %d",
	313	BTM_HEADER_LEN);
	314	skb = tmp;
132ff4e5 BZ	315	return -EINVAL;
	316	}
	317
	318	kfree_skb(tmp);
	319	}
	320
	321	skb_push(skb, BTM_HEADER_LEN);
	322
	323	/* header type: byte[3]
	324	* HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor
	325	* header length: byte[2][1][0]
	326	*/
	327
	328	skb->data[0] = (skb->len & 0x0000ff);
	329	skb->data[1] = (skb->len & 0x00ff00) >> 8;
	330	skb->data[2] = (skb->len & 0xff0000) >> 16;
	331	skb->data[3] = bt_cb(skb)->pkt_type;
	332
	333	if (priv->hw_host_to_card)
	334	ret = priv->hw_host_to_card(priv, skb->data, skb->len);
	335
132ff4e5 BZ	336	return ret;
	337	}
	338
	339	static void btmrvl_init_adapter(struct btmrvl_private *priv)
	340	{
0d367408 BZ	341	int buf_size;
0d367408 BZ	342
132ff4e5 BZ	343	skb_queue_head_init(&priv->adapter->tx_queue);
	344
	345	priv->adapter->ps_state = PS_AWAKE;
	346
0d367408 BZ	347	buf_size = ALIGN_SZ(SDIO_BLOCK_SIZE, BTSDIO_DMA_ALIGN);
	348	priv->adapter->hw_regs_buf = kzalloc(buf_size, GFP_KERNEL);
	349	if (!priv->adapter->hw_regs_buf) {
	350	priv->adapter->hw_regs = NULL;
	351	BT_ERR("Unable to allocate buffer for hw_regs.");
	352	} else {
	353	priv->adapter->hw_regs =
	354	(u8 *)ALIGN_ADDR(priv->adapter->hw_regs_buf,
	355	BTSDIO_DMA_ALIGN);
	356	BT_DBG("hw_regs_buf=%p hw_regs=%p",
	357	priv->adapter->hw_regs_buf, priv->adapter->hw_regs);
	358	}
	359
132ff4e5	360	init_waitqueue_head(&priv->adapter->cmd_wait_q);
132ff4e5 BZ	361	}
	362
	363	static void btmrvl_free_adapter(struct btmrvl_private *priv)
	364	{
132ff4e5 BZ	365	skb_queue_purge(&priv->adapter->tx_queue);
132ff4e5 BZ	366
0d367408	367	kfree(priv->adapter->hw_regs_buf);
132ff4e5 BZ	368	kfree(priv->adapter);
	369
	370	priv->adapter = NULL;
132ff4e5 BZ	371	}
132ff4e5 BZ	372
7bd8f09f	373	static int btmrvl_send_frame(struct hci_dev hdev, struct sk_buff skb)
132ff4e5	374	{
7648d28f	375	struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5	376
9374253f	377	BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
132ff4e5	378
132ff4e5 BZ	379	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
	380	BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
	381	print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
4271e08d	382	skb->data, skb->len);
132ff4e5 BZ	383	return -EBUSY;
	384	}
	385
	386	switch (bt_cb(skb)->pkt_type) {
	387	case HCI_COMMAND_PKT:
	388	hdev->stat.cmd_tx++;
	389	break;
	390
	391	case HCI_ACLDATA_PKT:
	392	hdev->stat.acl_tx++;
	393	break;
	394
	395	case HCI_SCODATA_PKT:
	396	hdev->stat.sco_tx++;
	397	break;
	398	}
	399
	400	skb_queue_tail(&priv->adapter->tx_queue, skb);
	401
	402	wake_up_interruptible(&priv->main_thread.wait_q);
	403
132ff4e5 BZ	404	return 0;
	405	}
	406
	407	static int btmrvl_flush(struct hci_dev *hdev)
	408	{
155961e8	409	struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5	410
132ff4e5 BZ	411	skb_queue_purge(&priv->adapter->tx_queue);
132ff4e5 BZ	412
132ff4e5 BZ	413	return 0;
	414	}
	415
	416	static int btmrvl_close(struct hci_dev *hdev)
	417	{
155961e8	418	struct btmrvl_private *priv = hci_get_drvdata(hdev);
132ff4e5	419
9374253f	420	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
132ff4e5	421	return 0;
132ff4e5 BZ	422
	423	skb_queue_purge(&priv->adapter->tx_queue);
	424
132ff4e5 BZ	425	return 0;
	426	}
	427
	428	static int btmrvl_open(struct hci_dev *hdev)
	429	{
132ff4e5 BZ	430	set_bit(HCI_RUNNING, &hdev->flags);
132ff4e5 BZ	431
132ff4e5 BZ	432	return 0;
	433	}
	434
433a9389	435	static int btmrvl_download_cal_data(struct btmrvl_private *priv,
8a4934f1	436	u8 *data, int len)
2cc86890	437	{
8a4934f1	438	int ret;
2cc86890 AK	439
	440	data[0] = 0x00;
	441	data[1] = 0x00;
	442	data[2] = 0x00;
8a4934f1	443	data[3] = len;
2cc86890 AK	444
2cc86890 AK	445	print_hex_dump_bytes("Calibration data: ",
8a4934f1	446	DUMP_PREFIX_OFFSET, data, BT_CAL_HDR_LEN + len);
2cc86890 AK	447
2cc86890 AK	448	ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
8a4934f1	449	BT_CAL_HDR_LEN + len);
2cc86890 AK	450	if (ret)
	451	BT_ERR("Failed to download caibration data\n");
	452
	453	return 0;
	454	}
	455
433a9389	456	static int btmrvl_cal_data_dt(struct btmrvl_private *priv)
2cc86890	457	{
433a9389	458	struct device_node *dt_node;
8a4934f1	459	u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
433a9389 BZ	460	const char name[] = "btmrvl_caldata";
433a9389 BZ	461	const char property[] = "btmrvl,caldata";
2cc86890 AK	462	int ret;
2cc86890 AK	463
433a9389 BZ	464	dt_node = of_find_node_by_name(NULL, name);
	465	if (!dt_node)
	466	return -ENODEV;
	467
8a4934f1 BZ	468	ret = of_property_read_u8_array(dt_node, property,
	469	cal_data + BT_CAL_HDR_LEN,
	470	BT_CAL_DATA_SIZE);
2cc86890 AK	471	if (ret)
	472	return ret;
	473
433a9389	474	BT_DBG("Use cal data from device tree");
8a4934f1	475	ret = btmrvl_download_cal_data(priv, cal_data, BT_CAL_DATA_SIZE);
2cc86890	476	if (ret) {
433a9389	477	BT_ERR("Fail to download calibrate data");
2cc86890 AK	478	return ret;
	479	}
	480
	481	return 0;
	482	}
	483
4b245722 AK	484	static int btmrvl_setup(struct hci_dev *hdev)
	485	{
	486	struct btmrvl_private *priv = hci_get_drvdata(hdev);
	487
	488	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
	489
433a9389	490	btmrvl_cal_data_dt(priv);
2cc86890	491
4b245722 AK	492	priv->btmrvl_dev.psmode = 1;
	493	btmrvl_enable_ps(priv);
	494
	495	priv->btmrvl_dev.gpio_gap = 0xffff;
	496	btmrvl_send_hscfg_cmd(priv);
	497
	498	return 0;
	499	}
	500
132ff4e5 BZ	501	/*
	502	* This function handles the event generated by firmware, rx data
	503	* received from firmware, and tx data sent from kernel.
	504	*/
	505	static int btmrvl_service_main_thread(void *data)
	506	{
	507	struct btmrvl_thread *thread = data;
	508	struct btmrvl_private *priv = thread->priv;
	509	struct btmrvl_adapter *adapter = priv->adapter;
	510	wait_queue_t wait;
	511	struct sk_buff *skb;
	512	ulong flags;
	513
132ff4e5 BZ	514	init_waitqueue_entry(&wait, current);
132ff4e5 BZ	515
132ff4e5 BZ	516	for (;;) {
	517	add_wait_queue(&thread->wait_q, &wait);
	518
	519	set_current_state(TASK_INTERRUPTIBLE);
ea05fea9 DD	520	if (kthread_should_stop()) {
	521	BT_DBG("main_thread: break from main thread");
	522	break;
	523	}
132ff4e5 BZ	524
132ff4e5 BZ	525	if (adapter->wakeup_tries \|\|
4271e08d MH	526	((!adapter->int_count) &&
	527	(!priv->btmrvl_dev.tx_dnld_rdy \|\|
	528	skb_queue_empty(&adapter->tx_queue)))) {
132ff4e5 BZ	529	BT_DBG("main_thread is sleeping...");
	530	schedule();
	531	}
	532
	533	set_current_state(TASK_RUNNING);
	534
	535	remove_wait_queue(&thread->wait_q, &wait);
	536
	537	BT_DBG("main_thread woke up");
	538
132ff4e5 BZ	539	spin_lock_irqsave(&priv->driver_lock, flags);
	540	if (adapter->int_count) {
	541	adapter->int_count = 0;
d1d10d78 AK	542	spin_unlock_irqrestore(&priv->driver_lock, flags);
d1d10d78 AK	543	priv->hw_process_int_status(priv);
4271e08d MH	544	} else if (adapter->ps_state == PS_SLEEP &&
4271e08d MH	545	!skb_queue_empty(&adapter->tx_queue)) {
132ff4e5 BZ	546	spin_unlock_irqrestore(&priv->driver_lock, flags);
	547	adapter->wakeup_tries++;
	548	priv->hw_wakeup_firmware(priv);
	549	continue;
d1d10d78 AK	550	} else {
d1d10d78 AK	551	spin_unlock_irqrestore(&priv->driver_lock, flags);
132ff4e5	552	}
132ff4e5 BZ	553
	554	if (adapter->ps_state == PS_SLEEP)
	555	continue;
	556
	557	if (!priv->btmrvl_dev.tx_dnld_rdy)
	558	continue;
	559
	560	skb = skb_dequeue(&adapter->tx_queue);
	561	if (skb) {
	562	if (btmrvl_tx_pkt(priv, skb))
	563	priv->btmrvl_dev.hcidev->stat.err_tx++;
	564	else
4271e08d	565	priv->btmrvl_dev.hcidev->stat.byte_tx += skb->len;
132ff4e5 BZ	566
	567	kfree_skb(skb);
	568	}
	569	}
	570
132ff4e5 BZ	571	return 0;
	572	}
	573
64061607	574	int btmrvl_register_hdev(struct btmrvl_private *priv)
132ff4e5 BZ	575	{
132ff4e5 BZ	576	struct hci_dev *hdev = NULL;
132ff4e5 BZ	577	int ret;
132ff4e5 BZ	578
132ff4e5 BZ	579	hdev = hci_alloc_dev();
	580	if (!hdev) {
	581	BT_ERR("Can not allocate HCI device");
	582	goto err_hdev;
	583	}
	584
132ff4e5	585	priv->btmrvl_dev.hcidev = hdev;
155961e8	586	hci_set_drvdata(hdev, priv);
132ff4e5	587
e93ac9c0 MH	588	hdev->bus = HCI_SDIO;
e93ac9c0 MH	589	hdev->open = btmrvl_open;
132ff4e5 BZ	590	hdev->close = btmrvl_close;
132ff4e5 BZ	591	hdev->flush = btmrvl_flush;
e93ac9c0	592	hdev->send = btmrvl_send_frame;
4b245722	593	hdev->setup = btmrvl_setup;
64061607	594
f120c6b6 BZ	595	hdev->dev_type = priv->btmrvl_dev.dev_type;
f120c6b6 BZ	596
132ff4e5 BZ	597	ret = hci_register_dev(hdev);
	598	if (ret < 0) {
	599	BT_ERR("Can not register HCI device");
	600	goto err_hci_register_dev;
	601	}
	602
fb784f05 BZ	603	#ifdef CONFIG_DEBUG_FS
	604	btmrvl_debugfs_init(hdev);
	605	#endif
	606
64061607	607	return 0;
132ff4e5 BZ	608
132ff4e5 BZ	609	err_hci_register_dev:
132ff4e5 BZ	610	hci_free_dev(hdev);
	611
	612	err_hdev:
64061607 BZ	613	/* Stop the thread servicing the interrupts */
	614	kthread_stop(priv->main_thread.task);
	615
132ff4e5	616	btmrvl_free_adapter(priv);
64061607 BZ	617	kfree(priv);
	618
	619	return -ENOMEM;
	620	}
	621	EXPORT_SYMBOL_GPL(btmrvl_register_hdev);
	622
	623	struct btmrvl_private btmrvl_add_card(void card)
	624	{
	625	struct btmrvl_private *priv;
	626
	627	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
	628	if (!priv) {
	629	BT_ERR("Can not allocate priv");
	630	goto err_priv;
	631	}
	632
	633	priv->adapter = kzalloc(sizeof(*priv->adapter), GFP_KERNEL);
	634	if (!priv->adapter) {
	635	BT_ERR("Allocate buffer for btmrvl_adapter failed!");
	636	goto err_adapter;
	637	}
	638
	639	btmrvl_init_adapter(priv);
	640
	641	BT_DBG("Starting kthread...");
	642	priv->main_thread.priv = priv;
	643	spin_lock_init(&priv->driver_lock);
	644
	645	init_waitqueue_head(&priv->main_thread.wait_q);
	646	priv->main_thread.task = kthread_run(btmrvl_service_main_thread,
	647	&priv->main_thread, "btmrvl_main_service");
	648
	649	priv->btmrvl_dev.card = card;
	650	priv->btmrvl_dev.tx_dnld_rdy = true;
	651
	652	return priv;
132ff4e5 BZ	653
	654	err_adapter:
	655	kfree(priv);
	656
	657	err_priv:
132ff4e5 BZ	658	return NULL;
	659	}
	660	EXPORT_SYMBOL_GPL(btmrvl_add_card);
	661
	662	int btmrvl_remove_card(struct btmrvl_private *priv)
	663	{
	664	struct hci_dev *hdev;
	665
132ff4e5 BZ	666	hdev = priv->btmrvl_dev.hcidev;
	667
	668	wake_up_interruptible(&priv->adapter->cmd_wait_q);
	669
	670	kthread_stop(priv->main_thread.task);
	671
fb784f05 BZ	672	#ifdef CONFIG_DEBUG_FS
	673	btmrvl_debugfs_remove(hdev);
	674	#endif
	675
132ff4e5 BZ	676	hci_unregister_dev(hdev);
	677
	678	hci_free_dev(hdev);
	679
	680	priv->btmrvl_dev.hcidev = NULL;
	681
	682	btmrvl_free_adapter(priv);
	683
	684	kfree(priv);
	685
132ff4e5 BZ	686	return 0;
	687	}
	688	EXPORT_SYMBOL_GPL(btmrvl_remove_card);
	689
	690	MODULE_AUTHOR("Marvell International Ltd.");
9666fb35	691	MODULE_DESCRIPTION("Marvell Bluetooth driver ver " VERSION);
132ff4e5 BZ	692	MODULE_VERSION(VERSION);
132ff4e5 BZ	693	MODULE_LICENSE("GPL v2");