8 files changed, 7354 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/bluetooth/Kconfig b/ANDROID_3.4.5/drivers/bluetooth/Kconfig
index 5ccf142e..16448cea 100644
--- a/ANDROID_3.4.5/drivers/bluetooth/Kconfig
+++ b/ANDROID_3.4.5/drivers/bluetooth/Kconfig
@@ -12,6 +12,20 @@ config BT_HCIBTUSB
 
 	  Say Y here to compile support for Bluetooth USB devices into the
 	  kernel or say M to compile it as module (btusb).
+	  
+
+
+config BT_RTKBTUSB
+	tristate "RTK HCI USB driver"
+	depends on USB
+	help
+	  RTK Bluetooth HCI USB driver
+
+config BT_COMM_BTUSB
+	tristate "Common HCI USB driver"
+	depends on USB
+	help
+	  Common Bluetooth HCI USB driver	  
 
 config BT_HCIBTSDIO
 	tristate "HCI SDIO driver"
@@ -93,6 +107,36 @@ config BT_HCIBCM203X
 	  Say Y here to compile support for HCI BCM203x devices into the
 	  kernel or say M to compile it as module (bcm203x).
 
+config BT_HCIBCM_6330_6476
+	tristate "bcm ap6476 ap6330 bluetooth power manager"
+	help
+	  bcm ap6476 ap6330 bluetooth driver.
+	  This driver provides the power enable and ouput 32KHz
+
+	  Say Y here to compile support for bcm ap6476 ap6330 devices into the
+	  kernel or say M to compile it as module.	  
+
+config BT_BLUESLEEP
+        tristate "Bluesleep driver support"
+        depends on SERIAL_TEGRA
+        help
+          Bluetooth Bluesleep Driver.
+          This driver provides the dynamic active power saving mechanism for
+          bluetooth radio devices.
+
+          Say Y here to compile support for bluesleep support into the kernel
+          or say M to compile it as module (bluesleep).
+
+config BT_TIBLUESLEEP
+        tristate "Bluesleep driver support for TI"
+        help
+          TI Bluetooth Bluesleep Driver.
+          This driver provides the dynamic active power saving mechanism for
+          bluetooth radio devices.
+
+          Say Y here to compile support for bluesleep support into the kernel
+          or say M to compile it as module (bluesleep).
+
 config BT_HCIBPA10X
 	tristate "HCI BPA10x USB driver"
 	depends on USB
diff --git a/ANDROID_3.4.5/drivers/bluetooth/Makefile b/ANDROID_3.4.5/drivers/bluetooth/Makefile
index f4460f4f..1c18b369 100644
--- a/ANDROID_3.4.5/drivers/bluetooth/Makefile
+++ b/ANDROID_3.4.5/drivers/bluetooth/Makefile
@@ -4,15 +4,20 @@
 
 obj-$(CONFIG_BT_HCIVHCI)	+= hci_vhci.o
 obj-$(CONFIG_BT_HCIUART)	+= hci_uart.o
+obj-$(CONFIG_BT_BLUESLEEP)	+= bluesleep.o
 obj-$(CONFIG_BT_HCIBCM203X)	+= bcm203x.o
+obj-$(CONFIG_BT_HCIBCM_6330_6476)	+= wmt_rfkill_bluetooth.o
 obj-$(CONFIG_BT_HCIBPA10X)	+= bpa10x.o
 obj-$(CONFIG_BT_HCIBFUSB)	+= bfusb.o
 obj-$(CONFIG_BT_HCIDTL1)	+= dtl1_cs.o
 obj-$(CONFIG_BT_HCIBT3C)	+= bt3c_cs.o
 obj-$(CONFIG_BT_HCIBLUECARD)	+= bluecard_cs.o
 obj-$(CONFIG_BT_HCIBTUART)	+= btuart_cs.o
+obj-$(CONFIG_BT_TIBLUESLEEP)	+= ti_bluesleep.o
 
 obj-$(CONFIG_BT_HCIBTUSB)	+= btusb.o
+obj-$(CONFIG_BT_RTKBTUSB)	+= rtk_btusb.o
+obj-$(CONFIG_BT_COMM_BTUSB)	+= btusb_common.o
 obj-$(CONFIG_BT_HCIBTSDIO)	+= btsdio.o
 
 obj-$(CONFIG_BT_ATH3K)		+= ath3k.o
diff --git a/ANDROID_3.4.5/drivers/bluetooth/btusb_common.c b/ANDROID_3.4.5/drivers/bluetooth/btusb_common.c
new file mode 100755
index 00000000..71d68684
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bluetooth/btusb_common.c
@@ -0,0 +1,2605 @@
+/*

+ *

+ *  Realtek Bluetooth USB driver

+ *

+ *  

+ *  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/kernel.h>

+#include <linux/module.h>

+#include <linux/init.h>

+#include <linux/slab.h>

+#include <linux/types.h>

+#include <linux/sched.h>

+#include <linux/errno.h>

+#include <linux/skbuff.h>

+#include <linux/usb.h>

+#include <mach/wmt_misc.h> //added by rubbitxiao

+#define PRINT_ACL_DATA 1

+#define PRINT_CMD_EVENT 1

+/*******************************/

+#include "com_btusb.h"

+

+#if 0

+#define RTKBT_DBG(fmt, arg...) printk(KERN_INFO "rtk_btusb: " fmt "\n" , ## arg)

+#else

+#define RTKBT_DBG(fmt, arg...)

+#endif

+

+#if 1

+#define RTKBT_ERR(fmt, arg...) printk(KERN_ERR "rtk_btusb: " fmt "\n" , ## arg)

+#else

+#define RTKBT_ERR(fmt, arg...)

+#endif

+

+

+#if CONFIG_BLUEDROID //for 4.2

+#define DEVICE_NAME "comm_btusb"

+static dev_t first; // Global variable for the first device number

+static struct cdev c_dev; // Global variable for the character device structure

+static struct class *cl; // Global variable for the device class

+

+/* HCI device list */

+DEFINE_RWLOCK(hci_dev_list_lock);

+struct hci_dev *Ghdev = NULL;

+

+static struct file_operations btfcd_file_ops_g =

+{

+    open    : btfcd_open,

+    release : btfcd_close,

+    read    : btfcd_read,

+    write   : btfcd_write,

+    poll    : btfcd_poll

+};

+#endif 

+/*******************************/

+

+#define VERSION "1.0.20130517"

+static struct usb_driver btusb_driver;

+static struct usb_device_id btusb_table[] = {

+	{ .match_flags = USB_DEVICE_ID_MATCH_INT_INFO,

+//	  .idVendor = 0x0a12,

+	  .bInterfaceClass = 0xe0,

+	  .bInterfaceSubClass = 0x01,

+	  .bInterfaceProtocol = 0x01 },

+	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR,	  

+	   .idVendor = 0x0a5c,	  

+	   .idProduct = 0x21e8, },	  

+	{ }

+};

+

+MODULE_DEVICE_TABLE(usb, btusb_table);

+

+static int inc_tx(struct btusb_data *data)

+{

+	unsigned long flags;

+	int rv;

+

+	spin_lock_irqsave(&data->txlock, flags);

+	rv = test_bit(BTUSB_SUSPENDING, &data->flags);

+	if (!rv)

+		data->tx_in_flight++;

+	spin_unlock_irqrestore(&data->txlock, flags);

+

+	return rv;

+}

+

+static void btusb_intr_complete(struct urb *urb)

+{

+	struct hci_dev *hdev = urb->context;

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	int err;   

+//	struct usb_device    *dev ;	

+//	RTKBT_DBG("btusb_intr_complete %s urb %p status %d count %d ", hdev->name,

+//					urb, urb->status, urb->actual_length);

+//	print_event(urb);

+	

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+		return;

+	

+	/*add to avoid suspend fail at usb_kill_urb*/

+	if(test_bit(BTUSB_SUSPENDING, &data->flags))

+	        return;

+

+	if (urb->status == 0) {

+		hdev->stat.byte_rx += urb->actual_length;

+

+		if (hci_recv_fragment(hdev, HCI_EVENT_PKT,

+						urb->transfer_buffer,

+						urb->actual_length) < 0) {

+			RTKBT_ERR("%s corrupted event packet", hdev->name);

+			hdev->stat.err_rx++;

+		}

+	}

+

+	if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))

+		return;

+

+	usb_mark_last_busy(data->udev);

+	usb_anchor_urb(urb, &data->intr_anchor);

+

+	err = usb_submit_urb(urb, GFP_ATOMIC);

+	if (err < 0) {

+		/* -EPERM: urb is being killed;

+		 * -ENODEV: device got disconnected */

+		if (err != -EPERM && err != -ENODEV)

+			RTKBT_ERR("btusb_intr_complete %s urb %p failed to resubmit (%d)",

+						hdev->name, urb, -err);

+		usb_unanchor_urb(urb);

+	//	dev = urb->dev;

+	//	RTKBT_DBG("dev->state = %d ",dev->state);

+	}

+}

+

+static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	struct urb *urb;

+	unsigned char *buf;

+	unsigned int pipe;

+	int err, size;

+

+	//RTKBT_DBG("%s", hdev->name);

+

+	if (!data->intr_ep)

+		return -ENODEV;

+

+	urb = usb_alloc_urb(0, mem_flags);

+	if (!urb)

+		return -ENOMEM;

+

+	size = le16_to_cpu(data->intr_ep->wMaxPacketSize);

+

+	buf = kmalloc(size, mem_flags);

+	if (!buf) {

+		usb_free_urb(urb);

+		return -ENOMEM;

+	}

+

+	pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);

+

+	usb_fill_int_urb(urb, data->udev, pipe, buf, size,

+						btusb_intr_complete, hdev,

+						data->intr_ep->bInterval);

+

+	urb->transfer_flags |= URB_FREE_BUFFER;

+

+	usb_anchor_urb(urb, &data->intr_anchor);

+

+	err = usb_submit_urb(urb, mem_flags);

+	if (err < 0) {

+		RTKBT_ERR("btusb_submit_intr_urb %s urb %p submission failed (%d)",

+						hdev->name, urb, -err);

+		usb_unanchor_urb(urb);

+	}

+

+	usb_free_urb(urb);

+

+	return err;

+}

+

+static void btusb_bulk_complete(struct urb *urb)

+{

+	struct hci_dev *hdev = urb->context;

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	int err;

+	//struct usb_device    *dev ;

+

+	/*

+	RTKBT_DBG("%s urb %p status %d count %d", hdev->name,

+					urb, urb->status, urb->actual_length);

+    */

+

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+		return;

+

+	if (urb->status == 0) {

+		hdev->stat.byte_rx += urb->actual_length;

+

+		if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,

+						urb->transfer_buffer,

+						urb->actual_length) < 0) {

+			RTKBT_ERR("%s corrupted ACL packet", hdev->name);

+			hdev->stat.err_rx++;

+		}

+	}

+

+	if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))

+		return;

+

+	/*add to avoid suspend fail at usb_kill_urb*/

+	if(test_bit(BTUSB_SUSPENDING, &data->flags))

+	        return;

+	

+	usb_anchor_urb(urb, &data->bulk_anchor);

+	usb_mark_last_busy(data->udev);

+

+	err = usb_submit_urb(urb, GFP_ATOMIC);

+	if (err < 0) {

+		/* -EPERM: urb is being killed;

+		 * -ENODEV: device got disconnected */

+		if (err != -EPERM && err != -ENODEV)

+			RTKBT_ERR("btusb_bulk_complete %s urb %p failed to resubmit (%d)",

+						hdev->name, urb, -err);

+		usb_unanchor_urb(urb);

+	//	dev = urb->dev;

+	//	RTKBT_DBG("dev->state = %d ",dev->state);

+	}

+}

+

+static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	struct urb *urb;

+	unsigned char *buf;

+	unsigned int pipe;

+	int err, size = HCI_MAX_FRAME_SIZE;

+

+	//RTKBT_DBG("%s", hdev->name);

+

+	if (!data->bulk_rx_ep)

+		return -ENODEV;

+

+	urb = usb_alloc_urb(0, mem_flags);

+	if (!urb)

+		return -ENOMEM;

+

+	buf = kmalloc(size, mem_flags);

+	if (!buf) {

+		usb_free_urb(urb);

+		return -ENOMEM;

+	}

+

+	pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);

+

+	usb_fill_bulk_urb(urb, data->udev, pipe,

+					buf, size, btusb_bulk_complete, hdev);

+

+	urb->transfer_flags |= URB_FREE_BUFFER;

+

+	usb_mark_last_busy(data->udev);

+	usb_anchor_urb(urb, &data->bulk_anchor);

+

+	err = usb_submit_urb(urb, mem_flags);

+	if (err < 0) {

+		RTKBT_ERR("btusb_submit_bulk_urb %s urb %p submission failed (%d)",

+						hdev->name, urb, -err);

+		usb_unanchor_urb(urb);

+	}

+

+	usb_free_urb(urb);

+

+	return err;

+}

+

+static void btusb_isoc_complete(struct urb *urb)

+{

+	struct hci_dev *hdev = urb->context;

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	int i, err;

+

+	/*

+	RTKBT_DBG("%s urb %p status %d count %d", hdev->name,

+					urb, urb->status, urb->actual_length);

+    */

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+		return;

+

+	if (urb->status == 0) {

+		for (i = 0; i < urb->number_of_packets; i++) {

+			unsigned int offset = urb->iso_frame_desc[i].offset;

+			unsigned int length = urb->iso_frame_desc[i].actual_length;

+

+			if (urb->iso_frame_desc[i].status)

+				continue;

+

+			hdev->stat.byte_rx += length;

+

+			if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,

+						urb->transfer_buffer + offset,

+								length) < 0) {

+				RTKBT_ERR("%s corrupted SCO packet", hdev->name);

+				hdev->stat.err_rx++;

+			}

+		}

+	}

+

+	if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))

+		return;

+

+	usb_anchor_urb(urb, &data->isoc_anchor);

+

+	err = usb_submit_urb(urb, GFP_ATOMIC);

+	if (err < 0) {

+		/* -EPERM: urb is being killed;

+		 * -ENODEV: device got disconnected */

+		if (err != -EPERM && err != -ENODEV)

+			RTKBT_ERR("btusb_isoc_complete %s urb %p failed to resubmit (%d)",

+						hdev->name, urb, -err);

+		usb_unanchor_urb(urb);

+	}

+}

+

+static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)

+{

+	int i, offset = 0;

+

+	//RTKBT_DBG("len %d mtu %d", len, mtu);

+

+	for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;

+					i++, offset += mtu, len -= mtu) {

+		urb->iso_frame_desc[i].offset = offset;

+		urb->iso_frame_desc[i].length = mtu;

+	}

+

+	if (len && i < BTUSB_MAX_ISOC_FRAMES) {

+		urb->iso_frame_desc[i].offset = offset;

+		urb->iso_frame_desc[i].length = len;

+		i++;

+	}

+

+	urb->number_of_packets = i;

+}

+

+static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	struct urb *urb;

+	unsigned char *buf;

+	unsigned int pipe;

+	int err, size;

+

+	//RTKBT_DBG("%s", hdev->name);

+

+	if (!data->isoc_rx_ep)

+		return -ENODEV;

+

+	urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);

+	if (!urb)

+		return -ENOMEM;

+

+	size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *

+						BTUSB_MAX_ISOC_FRAMES;

+

+	buf = kmalloc(size, mem_flags);

+	if (!buf) {

+		usb_free_urb(urb);

+		return -ENOMEM;

+	}

+

+	pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);

+

+	urb->dev      = data->udev;

+	urb->pipe     = pipe;

+	urb->context  = hdev;

+	urb->complete = btusb_isoc_complete;

+	urb->interval = data->isoc_rx_ep->bInterval;

+

+	urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;

+	urb->transfer_buffer = buf;

+	urb->transfer_buffer_length = size;

+

+	__fill_isoc_descriptor(urb, size,

+			le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));

+

+	usb_anchor_urb(urb, &data->isoc_anchor);

+

+	err = usb_submit_urb(urb, mem_flags);

+	if (err < 0) {

+		RTKBT_ERR("btusb_submit_isoc_urb %s urb %p submission failed (%d)",

+						hdev->name, urb, -err);

+		usb_unanchor_urb(urb);

+	}

+

+	usb_free_urb(urb);

+

+	return err;

+}

+

+static void btusb_tx_complete(struct urb *urb)

+{

+	struct sk_buff *skb = urb->context;

+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+

+//	RTKBT_DBG("btusb_tx_complete %s urb %p status %d count %d", hdev->name,

+//					urb, urb->status, urb->actual_length);

+

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+		goto done;

+

+	if (!urb->status)

+		hdev->stat.byte_tx += urb->transfer_buffer_length;

+	else

+		hdev->stat.err_tx++;

+

+done:

+	spin_lock(&data->txlock);

+	data->tx_in_flight--;

+	spin_unlock(&data->txlock);

+

+	kfree(urb->setup_packet);

+

+	kfree_skb(skb);

+}

+

+static void btusb_isoc_tx_complete(struct urb *urb)

+{

+	struct sk_buff *skb = urb->context;

+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;

+

+	/*

+	RTKBT_DBG("btusb_isoc_tx_complete %s urb %p status %d count %d", hdev->name,

+					urb, urb->status, urb->actual_length);

+    */

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+		goto done;

+

+	if (!urb->status)

+		hdev->stat.byte_tx += urb->transfer_buffer_length;

+	else

+		hdev->stat.err_tx++;

+

+done:

+	kfree(urb->setup_packet);

+

+	kfree_skb(skb);

+}

+

+static int btusb_open(struct hci_dev *hdev)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	int err;

+

+	err = usb_autopm_get_interface(data->intf);

+	if (err < 0)

+		return err;

+

+	data->intf->needs_remote_wakeup = 1;	

+	RTKBT_DBG("%s start pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));

+

+	/*******************************/

+	if (0 == atomic_read(&hdev->promisc))

+	{

+		RTKBT_ERR("btusb_open hdev->promisc ==0");

+		err = -1;

+                //goto failed;

+	}

+#if 0	//added by rubbitxiao

+	err = download_patch(data->intf);	

+	if (err < 0) goto failed;

+#endif  

+

+	/*******************************/

+

+	if (test_and_set_bit(HCI_RUNNING, &hdev->flags))

+		goto done;

+

+	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))

+		goto done;

+

+	err = btusb_submit_intr_urb(hdev, GFP_KERNEL);

+	if (err < 0)

+		goto failed;

+

+	err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);

+	if (err < 0) {

+		mdelay(URB_CANCELING_DELAY_MS);      // Added by Realtek

+		usb_kill_anchored_urbs(&data->intr_anchor);

+		goto failed;

+	}

+

+	set_bit(BTUSB_BULK_RUNNING, &data->flags);

+	btusb_submit_bulk_urb(hdev, GFP_KERNEL);

+

+done:

+	usb_autopm_put_interface(data->intf);

+	RTKBT_DBG("%s end  pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));

+

+	return 0;

+

+failed:

+	clear_bit(BTUSB_INTR_RUNNING, &data->flags);

+	clear_bit(HCI_RUNNING, &hdev->flags);

+	usb_autopm_put_interface(data->intf);

+	RTKBT_ERR("%s failed  pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));

+	return err;

+}

+

+static void btusb_stop_traffic(struct btusb_data *data)

+{

+	mdelay(URB_CANCELING_DELAY_MS);    // Added by Realtek

+	usb_kill_anchored_urbs(&data->intr_anchor);

+	usb_kill_anchored_urbs(&data->bulk_anchor);

+	usb_kill_anchored_urbs(&data->isoc_anchor);

+}

+

+static int btusb_close(struct hci_dev *hdev)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	int i,err;

+

+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))

+		return 0;

+

+	RTKBT_DBG("btusb_close");

+	/*******************************/

+	for (i = 0; i < NUM_REASSEMBLY; i++)

+	{	

+		if(hdev->reassembly[i])		

+		{

+			kfree_skb(hdev->reassembly[i]);

+			hdev->reassembly[i] = NULL;

+			RTKBT_DBG("%s free ressembly i=%d",__FUNCTION__,i);

+		}

+	}

+	/*******************************/

+	cancel_work_sync(&data->work);

+	cancel_work_sync(&data->waker);

+

+	clear_bit(BTUSB_ISOC_RUNNING, &data->flags);

+	clear_bit(BTUSB_BULK_RUNNING, &data->flags);

+	clear_bit(BTUSB_INTR_RUNNING, &data->flags);

+

+	btusb_stop_traffic(data);

+	err = usb_autopm_get_interface(data->intf);

+	if (err < 0)

+		goto failed;

+	

+	data->intf->needs_remote_wakeup = 0;

+	usb_autopm_put_interface(data->intf);

+

+failed:

+	mdelay(URB_CANCELING_DELAY_MS);     // Added by Realtek

+	usb_scuttle_anchored_urbs(&data->deferred);

+	return 0;

+}

+

+static int btusb_flush(struct hci_dev *hdev)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+

+	RTKBT_DBG("%s add delay ",__FUNCTION__);	

+	mdelay(URB_CANCELING_DELAY_MS);     // Added by Realtek

+	usb_kill_anchored_urbs(&data->tx_anchor);

+

+	return 0;

+}

+

+static int btusb_send_frame(struct sk_buff *skb)

+{

+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	struct usb_ctrlrequest *dr;

+	struct urb *urb;

+	unsigned int pipe;

+	int err;

+

+//	RTKBT_DBG("%s", hdev->name);

+

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+		return -EBUSY;

+

+	switch (bt_cb(skb)->pkt_type) {

+	case HCI_COMMAND_PKT:

+		print_command(skb);

+		urb = usb_alloc_urb(0, GFP_ATOMIC);

+		if (!urb)

+			return -ENOMEM;

+

+		dr = kmalloc(sizeof(*dr), GFP_ATOMIC);

+		if (!dr) {

+			usb_free_urb(urb);

+			return -ENOMEM;

+		}

+

+		dr->bRequestType = data->cmdreq_type;

+		dr->bRequest     = 0;

+		dr->wIndex       = 0;

+		dr->wValue       = 0;

+		dr->wLength      = __cpu_to_le16(skb->len);

+

+		pipe = usb_sndctrlpipe(data->udev, 0x00);

+

+		usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,

+				skb->data, skb->len, btusb_tx_complete, skb);

+

+		hdev->stat.cmd_tx++;

+		break;

+

+	case HCI_ACLDATA_PKT:

+		print_acl(skb,1);

+		if (!data->bulk_tx_ep)

+			return -ENODEV;

+

+		urb = usb_alloc_urb(0, GFP_ATOMIC);

+		if (!urb)

+			return -ENOMEM;

+

+		pipe = usb_sndbulkpipe(data->udev,

+					data->bulk_tx_ep->bEndpointAddress);

+

+		usb_fill_bulk_urb(urb, data->udev, pipe,

+				skb->data, skb->len, btusb_tx_complete, skb);

+

+		hdev->stat.acl_tx++;

+		break;

+

+	case HCI_SCODATA_PKT:

+		if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)

+			return -ENODEV;

+

+		urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);

+		if (!urb)

+			return -ENOMEM;

+

+		pipe = usb_sndisocpipe(data->udev,

+					data->isoc_tx_ep->bEndpointAddress);

+

+		usb_fill_int_urb(urb, data->udev, pipe,

+				skb->data, skb->len, btusb_isoc_tx_complete,

+				skb, data->isoc_tx_ep->bInterval);

+

+		urb->transfer_flags  = URB_ISO_ASAP;

+

+		__fill_isoc_descriptor(urb, skb->len,

+				le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));

+

+		hdev->stat.sco_tx++;

+		goto skip_waking;

+

+	default:

+		return -EILSEQ;

+	}

+

+	err = inc_tx(data);

+	if (err) {

+		usb_anchor_urb(urb, &data->deferred);

+		schedule_work(&data->waker);

+		err = 0;

+		goto done;

+	}

+

+skip_waking:

+	usb_anchor_urb(urb, &data->tx_anchor);

+	err = usb_submit_urb(urb, GFP_ATOMIC);

+	if (err < 0) {

+		RTKBT_ERR("btusb_send_frame %s urb %p submission failed", hdev->name, urb);

+		kfree(urb->setup_packet);

+		usb_unanchor_urb(urb);

+	} else {

+		usb_mark_last_busy(data->udev);

+	}

+	usb_free_urb(urb);

+

+done:

+	return err;

+}

+

+

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)

+static void btusb_destruct(struct hci_dev *hdev)

+{

+	RTKBT_DBG("btusb_destruct %s", hdev->name);

+	hci_free_dev(hdev);

+}

+#endif

+

+

+

+static void btusb_notify(struct hci_dev *hdev, unsigned int evt)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+

+	RTKBT_DBG("%s evt %d", hdev->name, evt);

+	RTKBT_DBG("btusb_notify : %s evt %d", hdev->name, evt);

+

+	if (hdev->conn_hash.sco_num != data->sco_num) {

+		data->sco_num = hdev->conn_hash.sco_num;

+		schedule_work(&data->work);

+	}

+}

+

+static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)

+{

+	struct btusb_data *data = GET_DRV_DATA(hdev);

+	struct usb_interface *intf = data->isoc;

+	struct usb_endpoint_descriptor *ep_desc;

+	int i, err;

+

+	if (!data->isoc)

+		return -ENODEV;

+

+	err = usb_set_interface(data->udev, 1, altsetting);

+	if (err < 0) {

+		RTKBT_ERR("%s setting interface failed (%d)", hdev->name, -err);

+		return err;

+	}

+

+	data->isoc_altsetting = altsetting;

+

+	data->isoc_tx_ep = NULL;

+	data->isoc_rx_ep = NULL;

+

+	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {

+		ep_desc = &intf->cur_altsetting->endpoint[i].desc;

+

+		if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {

+			data->isoc_tx_ep = ep_desc;

+			continue;

+		}

+

+		if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {

+			data->isoc_rx_ep = ep_desc;

+			continue;

+		}

+	}

+

+	if (!data->isoc_tx_ep || !data->isoc_rx_ep) {

+		RTKBT_ERR("%s invalid SCO descriptors", hdev->name);

+		return -ENODEV;

+	}

+

+	return 0;

+}

+

+static void btusb_work(struct work_struct *work)

+{

+	struct btusb_data *data = container_of(work, struct btusb_data, work);

+	struct hci_dev *hdev = data->hdev;

+	int err;

+

+	if (hdev->conn_hash.sco_num > 0) {

+		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {

+			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);

+			if (err < 0) {

+				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);

+				mdelay(URB_CANCELING_DELAY_MS);    // Added by Realtek

+				usb_kill_anchored_urbs(&data->isoc_anchor);

+				return;

+			}

+

+			set_bit(BTUSB_DID_ISO_RESUME, &data->flags);

+		}

+		if (data->isoc_altsetting != 2) {

+			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);

+			mdelay(URB_CANCELING_DELAY_MS);    // Added by Realtek

+			usb_kill_anchored_urbs(&data->isoc_anchor);

+

+			if (__set_isoc_interface(hdev, 2) < 0)

+				return;

+		}

+

+		if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {

+			if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)

+				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);

+			else

+				btusb_submit_isoc_urb(hdev, GFP_KERNEL);

+		}

+	} else {

+		clear_bit(BTUSB_ISOC_RUNNING, &data->flags);

+		mdelay(URB_CANCELING_DELAY_MS);      // Added by Realtek

+		usb_kill_anchored_urbs(&data->isoc_anchor);

+

+		__set_isoc_interface(hdev, 0);

+		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))

+			usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);

+	}

+}

+

+static void btusb_waker(struct work_struct *work)

+{

+	struct btusb_data *data = container_of(work, struct btusb_data, waker);

+	int err;

+

+	err = usb_autopm_get_interface(data->intf);

+	RTKBT_DBG("%s start  pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));

+	if (err < 0)

+		return;

+

+	usb_autopm_put_interface(data->intf);

+	RTKBT_DBG("%s end  pm_usage_cnt(0x%x)",__FUNCTION__,atomic_read(&(data->intf ->pm_usage_cnt)));

+}

+

+static int btusb_probe(struct usb_interface *intf,

+				const struct usb_device_id *id)

+{

+	struct usb_endpoint_descriptor *ep_desc;

+	struct btusb_data *data;

+	struct hci_dev *hdev;

+	int i, err,flag1,flag2;

+	struct usb_device *udev;	

+	udev = interface_to_usbdev(intf);

+

+	/* interface numbers are hardcoded in the spec */

+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)

+		return -ENODEV;

+

+	/*******************************/

+	flag1=device_can_wakeup(&udev->dev);

+	flag2=device_may_wakeup(&udev->dev);

+	RTKBT_DBG("btusb_probe 1==========can_wakeup=%x	 flag2=%x",flag1,flag2);

+	//device_wakeup_enable(&udev->dev);

+	/*device_wakeup_disable(&udev->dev);

+	flag1=device_can_wakeup(&udev->dev);

+	flag2=device_may_wakeup(&udev->dev);

+	RTKBT_DBG("btusb_probe 2==========can_wakeup=%x	 flag2=%x",flag1,flag2);

+	*/

+	//err = patch_add(intf);	

+	//if (err < 0) return -1;

+	/*******************************/

+

+	data = kzalloc(sizeof(*data), GFP_KERNEL);

+	if (!data)

+		return -ENOMEM;

+	

+

+	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {

+		ep_desc = &intf->cur_altsetting->endpoint[i].desc;

+

+		if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {

+			data->intr_ep = ep_desc;

+			continue;

+		}

+

+		if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {

+			data->bulk_tx_ep = ep_desc;

+			continue;

+		}

+

+		if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {

+			data->bulk_rx_ep = ep_desc;

+			continue;

+		}

+	}

+

+	if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {

+		kfree(data);

+		return -ENODEV;

+	}

+

+	data->cmdreq_type = USB_TYPE_CLASS;

+

+	data->udev = interface_to_usbdev(intf);

+	data->intf = intf;

+

+	spin_lock_init(&data->lock);

+

+	INIT_WORK(&data->work, btusb_work);

+	INIT_WORK(&data->waker, btusb_waker);

+	spin_lock_init(&data->txlock);

+

+	init_usb_anchor(&data->tx_anchor);

+	init_usb_anchor(&data->intr_anchor);

+	init_usb_anchor(&data->bulk_anchor);

+	init_usb_anchor(&data->isoc_anchor);

+	init_usb_anchor(&data->deferred);

+

+	hdev = hci_alloc_dev();

+	if (!hdev) {

+		kfree(data);

+		return -ENOMEM;

+	}

+

+	HDEV_BUS = HCI_USB;

+

+	data->hdev = hdev;

+

+	SET_HCIDEV_DEV(hdev, &intf->dev);

+

+	hdev->open     = btusb_open;

+	hdev->close    = btusb_close;

+	hdev->flush    = btusb_flush;

+	hdev->send     = btusb_send_frame;

+	hdev->notify   = btusb_notify;

+

+	

+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)

+	hci_set_drvdata(hdev, data);

+#else

+	hdev->driver_data = data;

+	hdev->destruct = btusb_destruct;

+	hdev->owner = THIS_MODULE;

+#endif

+

+	

+

+	/* Interface numbers are hardcoded in the specification */

+	data->isoc = usb_ifnum_to_if(data->udev, 1);

+

+	if (data->isoc) {

+		err = usb_driver_claim_interface(&btusb_driver,

+							data->isoc, data);

+		if (err < 0) {

+			hci_free_dev(hdev);

+			kfree(data);

+			return err;

+		}

+	}

+

+	err = hci_register_dev(hdev);

+	if (err < 0) {

+		hci_free_dev(hdev);

+		kfree(data);

+		return err;

+	}

+

+	usb_set_intfdata(intf, data);

+

+#if CONFIG_BLUEDROID //for 4.2

+	btfcd_init();

+#endif

+	return 0;

+}

+

+static void btusb_disconnect(struct usb_interface *intf)

+{

+	struct btusb_data *data = usb_get_intfdata(intf);

+	struct hci_dev *hdev;

+	struct usb_device *udev;

+	udev = interface_to_usbdev(intf);

+

+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)

+		return;

+

+	if (!data)

+		return;

+	

+	RTKBT_DBG("btusb_disconnect");	

+	/*******************************/

+#if 0	

+	patch_remove(intf);

+#endif

+	/*******************************/

+

+	hdev = data->hdev;

+#if CONFIG_BLUEDROID //for 4.2

+#else //for bluez

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)

+	__hci_dev_hold(hdev);

+#endif

+#endif

+	usb_set_intfdata(data->intf, NULL);

+

+	if (data->isoc)

+		usb_set_intfdata(data->isoc, NULL);

+

+	hci_unregister_dev(hdev);

+

+	if (intf == data->isoc)

+		usb_driver_release_interface(&btusb_driver, data->intf);

+	else if (data->isoc)

+		usb_driver_release_interface(&btusb_driver, data->isoc);

+

+#if CONFIG_BLUEDROID //for 4.2

+#else //for bluez

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)

+	__hci_dev_put(hdev);

+#endif

+#endif

+

+	hci_free_dev(hdev);

+	kfree(data);

+

+#if CONFIG_BLUEDROID //for 4.2

+	btfcd_exit();

+#endif

+

+}

+

+#ifdef CONFIG_PM

+static int btusb_suspend(struct usb_interface *intf, pm_message_t message)

+{

+	struct btusb_data *data = usb_get_intfdata(intf);

+

+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)

+		return 0;

+

+	/*******************************/

+	RTKBT_DBG("btusb_suspend message.event=0x%x,data->suspend_count=%d",message.event,data->suspend_count);

+	if (!test_bit(HCI_RUNNING, &data->hdev->flags))

+	{

+#if 0

+		RTKBT_DBG("btusb_suspend-----bt is off");	

+		set_btoff(data->intf);

+#else

+		printk("bt is off\n");

+#endif

+	}

+	/*******************************/

+	

+	if (data->suspend_count++)

+		return 0;

+	

+	spin_lock_irq(&data->txlock);

+	if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {

+		set_bit(BTUSB_SUSPENDING, &data->flags);

+		spin_unlock_irq(&data->txlock);

+	} else {

+		spin_unlock_irq(&data->txlock);

+		data->suspend_count--;

+		return -EBUSY;

+	}

+

+	cancel_work_sync(&data->work);

+

+	btusb_stop_traffic(data);

+	mdelay(URB_CANCELING_DELAY_MS);      // Added by Realtek

+	usb_kill_anchored_urbs(&data->tx_anchor);

+

+	return 0;

+}

+

+static void play_deferred(struct btusb_data *data)

+{

+	struct urb *urb;

+	int err;

+

+	while ((urb = usb_get_from_anchor(&data->deferred))) {

+	

+	       /************************************/

+		usb_anchor_urb(urb, &data->tx_anchor);

+		err = usb_submit_urb(urb, GFP_ATOMIC);

+		if (err < 0) {

+			RTKBT_ERR("play_deferred urb %p submission failed",  urb);

+			kfree(urb->setup_packet);

+			usb_unanchor_urb(urb);

+		} else {

+			usb_mark_last_busy(data->udev);

+		}

+		usb_free_urb(urb);

+		/************************************/

+		data->tx_in_flight++;

+	}

+	mdelay(URB_CANCELING_DELAY_MS);     // Added by Realtek

+	usb_scuttle_anchored_urbs(&data->deferred);

+}

+

+static int btusb_resume(struct usb_interface *intf)

+{

+	struct btusb_data *data = usb_get_intfdata(intf);

+	struct hci_dev *hdev = data->hdev;

+	int err = 0;

+

+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)

+		return 0;

+

+        

+	/*******************************/

+	RTKBT_DBG("btusb_resume data->suspend_count=%d",data->suspend_count);

+

+	if (!test_bit(HCI_RUNNING, &hdev->flags))

+	{

+#if	0

+		RTKBT_DBG("btusb_resume-----bt is off,download patch");

+		download_patch(intf);                

+#else

+		printk("btusb_resume-----bt is off");

+#endif

+	}

+	else

+	        RTKBT_DBG("btusb_resume,----bt is on");                

+	/*******************************/

+	if (--data->suspend_count)

+		return 0;

+	

+	if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {

+		err = btusb_submit_intr_urb(hdev, GFP_NOIO);

+		if (err < 0) {

+			clear_bit(BTUSB_INTR_RUNNING, &data->flags);

+			goto failed;

+		}

+	}

+

+	if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {

+		err = btusb_submit_bulk_urb(hdev, GFP_NOIO);

+		if (err < 0) {

+			clear_bit(BTUSB_BULK_RUNNING, &data->flags);

+			goto failed;

+		}

+

+		btusb_submit_bulk_urb(hdev, GFP_NOIO);

+	}

+

+	if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {

+		if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)

+			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);

+		else

+			btusb_submit_isoc_urb(hdev, GFP_NOIO);

+	}

+

+	spin_lock_irq(&data->txlock);

+	play_deferred(data);

+	clear_bit(BTUSB_SUSPENDING, &data->flags);

+	spin_unlock_irq(&data->txlock);

+	schedule_work(&data->work);

+

+	return 0;

+

+failed:

+	mdelay(URB_CANCELING_DELAY_MS);      // Added by Realtek

+	usb_scuttle_anchored_urbs(&data->deferred);

+//done:

+	spin_lock_irq(&data->txlock);

+	clear_bit(BTUSB_SUSPENDING, &data->flags);

+	spin_unlock_irq(&data->txlock);

+

+	return err;

+}

+#endif

+

+static struct usb_driver btusb_driver = {

+	.name		= "comm_btusb",

+	.probe		= btusb_probe,

+	.disconnect	= btusb_disconnect,

+#ifdef CONFIG_PM

+	.suspend	= btusb_suspend,

+	.resume		= btusb_resume,

+#endif

+#if  CONFIG_RESET_RESUME

+	.reset_resume = btusb_resume,

+#endif 

+	.id_table	= btusb_table,

+	.supports_autosuspend = 1,

+};

+

+static int __init btusb_init(void)

+{

+	RTKBT_DBG("csr Bluetooth USB driver ver %s", VERSION);

+		//wifi_power_ctrl(1);//added by rubbit

+	return usb_register(&btusb_driver);

+}

+

+static void __exit btusb_exit(void)

+{

+	RTKBT_DBG(KERN_INFO "rtk_btusb: btusb_exit");

+	usb_deregister(&btusb_driver);

+		wifi_power_ctrl(0);//added by rubbit

+}

+

+module_init(btusb_init);

+module_exit(btusb_exit);

+

+MODULE_AUTHOR("");

+MODULE_DESCRIPTION("Realtek Bluetooth USB driver ver " VERSION);

+MODULE_VERSION(VERSION);

+MODULE_LICENSE("GPL");

+

+

+

+/*******************************

+**    Reasil patch code

+********************************/

+#define CMD_CMP_EVT		0x0e

+#define PKT_LEN			300

+#define MSG_TO			1000

+#define PATCH_SEG_MAX	252

+#define DATA_END		0x80

+#define DOWNLOAD_OPCODE	0xfc20

+#define BTOFF_OPCODE	0xfc28

+#define TRUE			1

+#define FALSE			0

+#define CMD_HDR_LEN		sizeof(struct hci_command_hdr)

+#define EVT_HDR_LEN		sizeof(struct hci_event_hdr)

+#define CMD_CMP_LEN		sizeof(struct hci_ev_cmd_complete)

+

+

+enum rtk_endpoit {

+	CTRL_EP = 0,

+	INTR_EP = 1,

+	BULK_EP = 2,

+	ISOC_EP = 3

+};

+

+typedef struct {

+	uint16_t	prod_id;

+	uint16_t	lmp_sub;

+	char		*patch_name;

+	char		*config_name;

+	uint8_t		*fw_cache;

+	int			fw_len;

+} patch_info;

+

+typedef struct {

+	struct list_head		list_node;

+	struct usb_interface	*intf;

+	struct usb_device		*udev;

+	struct notifier_block	pm_notifier;

+	patch_info				*patch_entry;

+} dev_data;

+

+typedef struct {

+	dev_data	*dev_entry;

+	int			pipe_in, pipe_out;

+	uint8_t		*send_pkt;

+	uint8_t		*rcv_pkt;

+	struct hci_command_hdr		*cmd_hdr;

+	struct hci_event_hdr		*evt_hdr;

+	struct hci_ev_cmd_complete	*cmd_cmp;

+	uint8_t		*req_para, *rsp_para;

+	uint8_t		*fw_data;

+	int			pkt_len, fw_len;

+} xchange_data;

+

+typedef struct {

+	uint8_t index;

+	uint8_t data[PATCH_SEG_MAX];

+} __attribute__((packed)) download_cp;

+

+typedef struct {

+	uint8_t status;

+	uint8_t index;

+} __attribute__((packed)) download_rp;

+

+

+static dev_data* dev_data_find(struct usb_interface* intf);

+static patch_info* get_patch_entry(struct usb_device* udev);

+static int rtkbt_pm_notify(struct notifier_block* notifier, ulong pm_event, void* unused);

+static int load_firmware(dev_data* dev_entry, uint8_t** buff);

+static void init_xdata(xchange_data* xdata, dev_data* dev_entry);

+static int check_fw_version(xchange_data* xdata);

+static int get_firmware(xchange_data* xdata);

+static int download_data(xchange_data* xdata);

+static int send_hci_cmd(xchange_data* xdata);

+static int rcv_hci_evt(xchange_data* xdata);

+

+

+static patch_info patch_table[] = {

+    { 1828, 0x1200, "rtk8723a", "rtk8723_bt_config", NULL, 0 },

+    { 46880, 0x8723, "rtk8723b", "rtk8723_bt_config", NULL, 0 },

+    { 0, 0x1200, "rtk8723a", "rtk8723_bt_config", NULL, 0 }

+};

+

+static LIST_HEAD(dev_data_list);

+

+

+int patch_add(struct usb_interface* intf)

+{

+	dev_data	*dev_entry;

+	struct usb_device *udev;

+

+	RTKBT_DBG("patch_add");

+	dev_entry = dev_data_find(intf);

+	if (NULL != dev_entry)

+	{

+		return -1;

+	}

+

+	udev = interface_to_usbdev(intf);

+#if BTUSB_RPM	

+	RTKBT_DBG("auto suspend is enabled");  

+	usb_enable_autosuspend(udev);	

+	pm_runtime_set_autosuspend_delay(&(udev->dev),2000);

+#endif

+

+	dev_entry = kzalloc(sizeof(dev_data), GFP_KERNEL);

+	dev_entry->intf = intf;

+	dev_entry->udev = udev;

+	dev_entry->pm_notifier.notifier_call = rtkbt_pm_notify;

+	dev_entry->patch_entry = get_patch_entry(udev);

+	list_add(&dev_entry->list_node, &dev_data_list);

+	register_pm_notifier(&dev_entry->pm_notifier);

+

+	return 0;

+}

+

+void patch_remove(struct usb_interface* intf)

+{

+	dev_data *dev_entry;

+	struct usb_device *udev;

+	return 0; //add by rubbitxiao

+

+	udev = interface_to_usbdev(intf);

+#if BTUSB_RPM

+	usb_disable_autosuspend(udev);	

+#endif

+

+	dev_entry = dev_data_find(intf);

+	if (NULL == dev_entry)

+	{

+		return;

+	}

+	

+	RTKBT_DBG("patch_remove");

+	list_del(&dev_entry->list_node);

+	unregister_pm_notifier(&dev_entry->pm_notifier);

+	kfree(dev_entry);

+}

+

+int download_patch(struct usb_interface* intf)

+{

+	dev_data		*dev_entry;

+	xchange_data	*xdata = NULL;

+	uint8_t			*fw_buf;

+	int				ret_val;

+	return 0;//added by rubbitxiao

+	RTKBT_DBG("download_patch start");

+	dev_entry = dev_data_find(intf);

+	if (NULL == dev_entry)

+	{

+		ret_val = -1;

+		RTKBT_ERR("NULL == dev_entry");

+		goto patch_end;

+	}

+	

+        xdata = kzalloc(sizeof(xchange_data), GFP_KERNEL);

+	if(NULL == xdata)

+	{

+		ret_val = -1;

+		RTKBT_DBG("NULL == xdata");

+		goto patch_end;	

+	}

+		

+	init_xdata(xdata, dev_entry);

+	ret_val = check_fw_version(xdata);

+	if (ret_val != 0)

+	{

+		goto patch_end;

+	}

+

+	ret_val = get_firmware(xdata);

+	if (ret_val < 0)

+	{

+		RTKBT_ERR("get_firmware failed!");

+		goto patch_end;

+	}

+	fw_buf = xdata->fw_data;

+

+	ret_val = download_data(xdata);

+	if (ret_val < 0)

+	{

+		RTKBT_ERR("download_data failed!");

+		goto patch_fail;

+	}

+

+	ret_val = check_fw_version(xdata);

+	if (ret_val <= 0)

+	{

+		ret_val = -1;

+		goto patch_fail;

+	}

+

+	ret_val = 0;

+patch_fail:

+	kfree(fw_buf);

+patch_end:

+	if(xdata != NULL)

+	{

+                if(xdata->send_pkt)

+			kfree(xdata->send_pkt);

+		if(xdata->rcv_pkt)	

+			kfree(xdata->rcv_pkt);

+        	kfree(xdata);

+	}

+	RTKBT_DBG("Rtk patch end %d", ret_val);

+	return ret_val;

+}

+

+int set_btoff(struct usb_interface* intf)

+{

+	dev_data		*dev_entry;

+	xchange_data	*xdata = NULL;

+	int				ret_val;

+

+	RTKBT_DBG("set_btoff");

+	dev_entry = dev_data_find(intf);

+	if (NULL == dev_entry)

+	{

+		return -1;

+	}

+

+       xdata = kzalloc(sizeof(xchange_data), GFP_KERNEL);

+	if(NULL == xdata)

+	{

+		ret_val = -1;

+		RTKBT_DBG("NULL == xdata");

+              return ret_val;

+       }

+	

+	init_xdata(xdata, dev_entry);

+

+

+	xdata->cmd_hdr->opcode = cpu_to_le16(BTOFF_OPCODE);

+	xdata->cmd_hdr->plen = 1;

+	xdata->pkt_len = CMD_HDR_LEN + 1;

+	xdata->send_pkt[CMD_HDR_LEN] = 1;

+	

+	ret_val = send_hci_cmd(xdata);

+	if (ret_val < 0)

+	{

+		goto tagEnd;

+	}

+

+	ret_val = rcv_hci_evt(xdata);

+	if (ret_val < 0)

+	{

+		goto tagEnd;

+	}

+

+tagEnd:

+	if(xdata != NULL)

+	{

+                if(xdata->send_pkt)

+			kfree(xdata->send_pkt);

+		if(xdata->rcv_pkt)	

+			kfree(xdata->rcv_pkt);

+        	kfree(xdata);

+	}

+

+	RTKBT_DBG("set_btoff done");

+

+	return ret_val;

+}

+

+

+dev_data* dev_data_find(struct usb_interface* intf)

+{

+	dev_data *dev_entry;

+

+	list_for_each_entry(dev_entry, &dev_data_list, list_node)

+	{

+		if (dev_entry->intf == intf)

+		{

+			return dev_entry;

+		}

+	}

+

+	return NULL;

+}

+

+patch_info* get_patch_entry(struct usb_device* udev)

+{

+	patch_info	*patch_entry;

+	uint16_t	pid;

+

+	patch_entry = patch_table;

+	pid = le16_to_cpu(udev->descriptor.idProduct);

+	while (pid != patch_entry->prod_id)

+	{

+		if (0 == patch_entry->prod_id) break;

+		patch_entry++;

+	}

+

+	return patch_entry;

+}

+

+int rtkbt_pm_notify(

+	struct notifier_block* notifier,

+	ulong	pm_event,

+	void*	unused)

+{

+	dev_data	*dev_entry;

+	patch_info	*patch_entry;

+	struct usb_device *udev;

+

+	dev_entry = container_of(notifier, dev_data, pm_notifier);

+	patch_entry = dev_entry->patch_entry;

+	udev = dev_entry->udev;

+	RTKBT_DBG("rtkbt_pm_notify pm_event =%ld",pm_event);

+	switch (pm_event)

+	{

+		case PM_SUSPEND_PREPARE:

+		case PM_HIBERNATION_PREPARE:

+			patch_entry->fw_len = load_firmware(dev_entry, &patch_entry->fw_cache);

+			if (patch_entry->fw_len <= 0)

+			{

+				RTKBT_DBG("rtkbt_pm_notify return NOTIFY_BAD");

+				return NOTIFY_BAD;

+			}

+	

+			if (!device_may_wakeup(&udev->dev))

+			{

+				#ifdef CONFIG_RESET_RESUME

+					RTKBT_DBG("remote wakeup not support, reset_resume support ");

+				#else

+					dev_entry->intf->needs_binding = 1;

+					RTKBT_DBG("remote wakeup not support, set intf->needs_binding = 1");

+				#endif

+			}

+			break;

+

+		case PM_POST_SUSPEND:

+		case PM_POST_HIBERNATION:

+		case PM_POST_RESTORE:

+			if (patch_entry->fw_len > 0)

+			{

+				kfree(patch_entry->fw_cache);

+				patch_entry->fw_cache = NULL;

+				patch_entry->fw_len = 0;

+			}

+#if BTUSB_RPM

+			usb_disable_autosuspend(udev);

+			usb_enable_autosuspend(udev);

+			pm_runtime_set_autosuspend_delay(&(udev->dev),2000);

+#endif

+			break;

+

+		default:

+			break;

+	}

+

+	return NOTIFY_DONE;

+}

+

+int load_firmware(dev_data* dev_entry, uint8_t** buff)

+{

+	const struct firmware	*fw;

+	struct usb_device		*udev;

+	patch_info	*patch_entry;

+	char		*fw_name;

+	int			fw_len = 0, ret_val;

+

+	RTKBT_DBG("load_firmware");

+	udev = dev_entry->udev;

+	patch_entry = dev_entry->patch_entry;

+	fw_name = patch_entry->patch_name;

+	ret_val = request_firmware(&fw, fw_name, &udev->dev);

+	if (ret_val < 0) goto fw_fail;

+	

+	*buff = kzalloc(fw->size, GFP_KERNEL);

+	if (NULL == *buff) goto alloc_fail;

+	memcpy(*buff, fw->data, fw->size);

+	fw_len = fw->size;

+

+#if LOAD_CONFIG

+	release_firmware(fw);

+	fw_name = patch_entry->config_name;

+	ret_val = request_firmware(&fw, fw_name, &udev->dev);

+	if (ret_val < 0)

+	{

+		fw_len = 0;

+		kfree(*buff);

+		*buff = NULL;

+		goto fw_fail;

+	}

+

+	*buff = krealloc(*buff, fw_len + fw->size, GFP_KERNEL);

+	if (NULL == *buff)

+	{

+		fw_len = 0;

+		goto alloc_fail;

+	}

+	memcpy(*buff + fw_len, fw->data, fw->size);

+	fw_len += fw->size;

+#endif

+

+alloc_fail:

+	release_firmware(fw);

+fw_fail:

+	return fw_len;

+}

+

+void init_xdata(

+	xchange_data*	xdata,

+	dev_data*		dev_entry)

+{

+	memset(xdata, 0, sizeof(xchange_data));

+	xdata->dev_entry = dev_entry;

+	xdata->pipe_in = usb_rcvintpipe(dev_entry->udev, INTR_EP);

+	xdata->pipe_out = usb_sndctrlpipe(dev_entry->udev, CTRL_EP);

+        xdata->send_pkt = kzalloc(PKT_LEN, GFP_KERNEL);

+	xdata->rcv_pkt = kzalloc(PKT_LEN, GFP_KERNEL);	   

+	xdata->cmd_hdr = (struct hci_command_hdr*)(xdata->send_pkt);

+	xdata->evt_hdr = (struct hci_event_hdr*)(xdata->rcv_pkt);

+	xdata->cmd_cmp = (struct hci_ev_cmd_complete*)(xdata->rcv_pkt + EVT_HDR_LEN);

+	xdata->req_para = xdata->send_pkt + CMD_HDR_LEN;

+	xdata->rsp_para = xdata->rcv_pkt + EVT_HDR_LEN + CMD_CMP_LEN;

+}

+

+int check_fw_version(xchange_data* xdata)

+{

+	struct hci_rp_read_local_version *read_ver_rsp;

+	patch_info	*patch_entry;

+	int			ret_val;

+

+	xdata->cmd_hdr->opcode = cpu_to_le16(HCI_OP_READ_LOCAL_VERSION);

+	xdata->cmd_hdr->plen = 0;

+	xdata->pkt_len = CMD_HDR_LEN;

+

+	ret_val = send_hci_cmd(xdata);

+	if (ret_val < 0)

+	{

+		goto version_end;

+	}

+

+	ret_val = rcv_hci_evt(xdata);

+	if (ret_val < 0)

+	{

+		goto version_end;

+	}

+

+	patch_entry = xdata->dev_entry->patch_entry;

+	read_ver_rsp = (struct hci_rp_read_local_version*)(xdata->rsp_para);

+	RTKBT_DBG("check_fw_version : read_ver_rsp->lmp_subver = 0x%x",read_ver_rsp->lmp_subver);

+	if (patch_entry->lmp_sub != read_ver_rsp->lmp_subver)

+	{

+		return 1;

+	}

+

+	ret_val = 0;

+version_end:

+	return ret_val;

+}

+

+int get_firmware(xchange_data* xdata)

+{

+	dev_data	*dev_entry;

+	patch_info	*patch_entry;

+

+	dev_entry = xdata->dev_entry;

+	patch_entry = dev_entry->patch_entry;

+	if (patch_entry->fw_len > 0)

+	{

+		xdata->fw_data = kzalloc(patch_entry->fw_len, GFP_KERNEL);

+		if (NULL == xdata->fw_data) return -ENOMEM;

+		memcpy(xdata->fw_data, patch_entry->fw_cache, patch_entry->fw_len);

+		xdata->fw_len = patch_entry->fw_len;

+	}

+	else

+	{

+		xdata->fw_len = load_firmware(dev_entry, &xdata->fw_data);

+		if (xdata->fw_len <= 0) return -1;

+	}

+	

+	return 0;

+}

+

+int download_data(xchange_data* xdata)

+{

+	download_cp *cmd_para;

+	download_rp *evt_para;

+	uint8_t		*pcur;

+	int			pkt_len, frag_num, frag_len;

+	int			i, ret_val;

+

+	cmd_para = (download_cp*)xdata->req_para;

+	evt_para = (download_rp*)xdata->rsp_para;

+	pcur = xdata->fw_data;

+	pkt_len = CMD_HDR_LEN + sizeof(download_cp);

+	frag_num = xdata->fw_len / PATCH_SEG_MAX + 1;

+	frag_len = PATCH_SEG_MAX;

+	

+	for (i = 0; i < frag_num; i++)

+	{

+		cmd_para->index = i;

+		if (i == (frag_num - 1))

+		{

+			cmd_para->index |= DATA_END;

+			frag_len = xdata->fw_len % PATCH_SEG_MAX;

+			pkt_len -= (PATCH_SEG_MAX - frag_len);

+		}

+		xdata->cmd_hdr->opcode = cpu_to_le16(DOWNLOAD_OPCODE);

+		xdata->cmd_hdr->plen = sizeof(uint8_t) + frag_len;

+		xdata->pkt_len = pkt_len;

+		memcpy(cmd_para->data, pcur, frag_len);

+

+		ret_val = send_hci_cmd(xdata);

+		if (ret_val < 0)

+		{

+			return ret_val;

+		}

+

+		ret_val = rcv_hci_evt(xdata);

+		if (ret_val < 0)

+		{

+			return ret_val;

+		}

+		if (0 != evt_para->status)

+		{

+			return -1;

+		}

+

+		pcur += PATCH_SEG_MAX;

+	}

+

+	return xdata->fw_len;

+}

+

+int send_hci_cmd(xchange_data* xdata)

+{

+	int ret_val;

+

+	ret_val = usb_control_msg(

+		xdata->dev_entry->udev, xdata->pipe_out,

+		0, USB_TYPE_CLASS, 0, 0,

+		(void*)(xdata->send_pkt),

+		xdata->pkt_len, MSG_TO);

+

+	return ret_val;

+}

+

+int rcv_hci_evt(xchange_data* xdata)

+{

+	int ret_len, ret_val;

+	int i;   // Added by Realtek

+

+	while (1)

+	{

+		

+		// **************************** Modifed by Realtek (begin)

+		for(i = 0; i < 5; i++)   // Try to send USB interrupt message 5 times.

+		{

+		ret_val = usb_interrupt_msg(

+			xdata->dev_entry->udev, xdata->pipe_in,

+			(void*)(xdata->rcv_pkt), PKT_LEN,

+			&ret_len, MSG_TO);

+			if(ret_val >= 0)

+				break;

+		}

+		// **************************** Modifed by Realtek (end)

+

+		if (ret_val < 0)

+		{

+			return ret_val;

+		}

+

+		

+	      if (CMD_CMP_EVT == xdata->evt_hdr->evt)

+	       {   

+	           if (xdata->cmd_hdr->opcode == xdata->cmd_cmp->opcode)

+	              return ret_len;

+	       }

+

+

+	}

+}

+

+void print_acl (struct sk_buff *skb,int dataOut)

+{

+#if PRINT_ACL_DATA

+	uint wlength = skb->len;

+	uint icount=0;	

+	u16* handle = (u16*)(skb->data);

+	u16 dataLen=*(handle+1);

+	u8* acl_data =(u8*)(skb->data);

+//if (0==dataOut)

+	printk("%d handle:%04x,len:%d,",dataOut,*handle,dataLen);

+//else

+//	printk("In handle:%04x,len:%d,",*handle,dataLen);

+/*	for(icount=4;(icount<wlength)&&(icount<32);icount++)

+		{

+			printk("%02x ",*(acl_data+icount) );

+		}

+	printk("\n");

+*/

+#endif

+}

+void print_command(struct sk_buff *skb)

+{

+

+#if 0

+	uint wlength = skb->len;

+	uint icount=0;	

+	u16* opcode = (u16*)(skb->data);	

+	u8* cmd_data =(u8*)(skb->data);

+	u8 paramLen=*(cmd_data+2);

+	

+	switch (*opcode) {

+	case HCI_OP_INQUIRY:

+		printk("HCI_OP_INQUIRY");

+		break;

+	case HCI_OP_INQUIRY_CANCEL:

+		printk("HCI_OP_INQUIRY_CANCEL");

+		break;

+	case HCI_OP_EXIT_PERIODIC_INQ:

+		printk("HCI_OP_EXIT_PERIODIC_INQ");

+		break;

+	case HCI_OP_CREATE_CONN:

+		printk("HCI_OP_CREATE_CONN");

+		break;

+	case HCI_OP_DISCONNECT:

+		printk("HCI_OP_DISCONNECT");

+		break;

+	case HCI_OP_CREATE_CONN_CANCEL:

+		printk("HCI_OP_CREATE_CONN_CANCEL");

+		break;

+	case HCI_OP_ACCEPT_CONN_REQ:

+		printk("HCI_OP_ACCEPT_CONN_REQ");

+		break;

+	case HCI_OP_REJECT_CONN_REQ:

+		printk("HCI_OP_REJECT_CONN_REQ");

+		break;

+	case HCI_OP_AUTH_REQUESTED:

+		printk("HCI_OP_AUTH_REQUESTED");

+		break;

+	case HCI_OP_SET_CONN_ENCRYPT:

+		printk("HCI_OP_SET_CONN_ENCRYPT");

+		break;

+	case HCI_OP_REMOTE_NAME_REQ:

+		printk("HCI_OP_REMOTE_NAME_REQ");

+		break;

+	case HCI_OP_READ_REMOTE_FEATURES:

+		printk("HCI_OP_READ_REMOTE_FEATURES");

+		break;

+	case HCI_OP_SNIFF_MODE:

+		printk("HCI_OP_SNIFF_MODE");

+		break;

+	case HCI_OP_EXIT_SNIFF_MODE:

+		printk("HCI_OP_EXIT_SNIFF_MODE");

+		break;

+	case HCI_OP_SWITCH_ROLE:

+		printk("HCI_OP_SWITCH_ROLE");

+		break;

+	case HCI_OP_SNIFF_SUBRATE:

+		printk("HCI_OP_SNIFF_SUBRATE");

+		break;

+	case HCI_OP_RESET:

+		printk("HCI_OP_RESET");

+		break;

+	default:

+		printk("CMD");

+		break;	

+	}

+	printk(":%04x,len:%d,",*opcode,paramLen);

+	for(icount=3;(icount<wlength)&&(icount<24);icount++)

+		{

+			printk("%02x ",*(cmd_data+icount) );

+		}

+	printk("\n");

+	

+#endif		

+}

+void print_event(struct sk_buff *skb)

+{

+	//printk("print_event\n");

+#if 0

+	uint wlength = skb->len;

+	uint icount=0;	

+	u8* opcode = (u8*)(skb->data);

+	u8 paramLen=*(opcode+1);

+

+	switch (*opcode) {

+	case HCI_EV_INQUIRY_COMPLETE:

+		printk("HCI_EV_INQUIRY_COMPLETE");

+		break;

+	case HCI_EV_INQUIRY_RESULT:	

+		printk("HCI_EV_INQUIRY_RESULT");		

+		break;

+	case HCI_EV_CONN_COMPLETE: 		

+		printk("HCI_EV_CONN_COMPLETE");

+		break;

+	case HCI_EV_CONN_REQUEST:

+		printk("HCI_EV_CONN_REQUEST");

+		break;

+	case HCI_EV_DISCONN_COMPLETE:

+		printk("HCI_EV_DISCONN_COMPLETE");

+		break;

+	case HCI_EV_AUTH_COMPLETE:

+		printk("HCI_EV_AUTH_COMPLETE");

+		break;

+	case HCI_EV_REMOTE_NAME:

+		printk("HCI_EV_REMOTE_NAME");

+		break;

+	case HCI_EV_ENCRYPT_CHANGE:

+		printk("HCI_EV_ENCRYPT_CHANGE");

+		break;

+	case HCI_EV_CHANGE_LINK_KEY_COMPLETE:

+		printk("HCI_EV_CHANGE_LINK_KEY_COMPLETE");

+		break;

+	case HCI_EV_REMOTE_FEATURES:

+		printk("HCI_EV_REMOTE_FEATURES");

+		break;

+	case HCI_EV_REMOTE_VERSION:

+		printk("HCI_EV_REMOTE_VERSION");

+		break;

+	case HCI_EV_QOS_SETUP_COMPLETE:

+		printk("HCI_EV_QOS_SETUP_COMPLETE");

+		break;

+	case HCI_EV_CMD_COMPLETE:

+		printk("HCI_EV_CMD_COMPLETE");

+		break;

+	case HCI_EV_CMD_STATUS:

+		printk("HCI_EV_CMD_STATUS");

+		break;

+	case HCI_EV_ROLE_CHANGE:

+		printk("HCI_EV_ROLE_CHANGE");

+		break;

+	case HCI_EV_NUM_COMP_PKTS:

+		printk("HCI_EV_NUM_COMP_PKTS");

+		break;

+	case HCI_EV_MODE_CHANGE:

+		printk("HCI_EV_MODE_CHANGE");

+		break;

+	case HCI_EV_PIN_CODE_REQ:

+		printk("HCI_EV_PIN_CODE_REQ");

+		break;

+	case HCI_EV_LINK_KEY_REQ:

+		printk("HCI_EV_LINK_KEY_REQ");

+		break;

+	case HCI_EV_LINK_KEY_NOTIFY:

+		printk("HCI_EV_LINK_KEY_NOTIFY");

+		break;

+	case HCI_EV_CLOCK_OFFSET:

+		printk("HCI_EV_CLOCK_OFFSET");

+		break;

+	case HCI_EV_PKT_TYPE_CHANGE:

+		printk("HCI_EV_PKT_TYPE_CHANGE");

+		break;

+	case HCI_EV_PSCAN_REP_MODE:

+		printk("HCI_EV_PSCAN_REP_MODE");

+		break;

+	case HCI_EV_INQUIRY_RESULT_WITH_RSSI:

+		printk("HCI_EV_INQUIRY_RESULT_WITH_RSSI");

+		break;

+	case HCI_EV_REMOTE_EXT_FEATURES:

+		printk("HCI_EV_REMOTE_EXT_FEATURES");

+		break;

+	case HCI_EV_SYNC_CONN_COMPLETE:

+		printk("HCI_EV_SYNC_CONN_COMPLETE");

+		break;

+	case HCI_EV_SYNC_CONN_CHANGED:

+		printk("HCI_EV_SYNC_CONN_CHANGED");

+		break;

+	case HCI_EV_SNIFF_SUBRATE:

+		printk("HCI_EV_SNIFF_SUBRATE");

+		break;

+	case HCI_EV_EXTENDED_INQUIRY_RESULT:

+		printk("HCI_EV_EXTENDED_INQUIRY_RESULT");

+		break;

+	case HCI_EV_IO_CAPA_REQUEST:

+		printk("HCI_EV_IO_CAPA_REQUEST");

+		break;

+	case HCI_EV_SIMPLE_PAIR_COMPLETE:

+		printk("HCI_EV_SIMPLE_PAIR_COMPLETE");

+		break;

+	case HCI_EV_REMOTE_HOST_FEATURES:

+		printk("HCI_EV_REMOTE_HOST_FEATURES");

+		break;

+	default:

+		printk("event");

+		break;

+	}

+	printk(":%02x,len:%d,",*opcode,paramLen);

+	for(icount=2;(icount<wlength)&&(icount<24);icount++)

+	{

+			printk("%02x ",*(opcode+icount) );

+	}

+	printk("\n");

+	

+#endif

+

+}

+

+#if CONFIG_BLUEDROID //for 4.2

+//=========================================

+/*

+ * Realtek - Add for Android 4.2 (fake character device)

+ */

+static int

+btfcd_open(struct inode *inode_p,

+           struct file  *file_p)

+

+{

+	struct btusb_data *data;

+	struct hci_dev *hdev;

+

+	RTKBT_DBG("btfcd open\n");

+

+	hdev = hci_dev_get(0);

+	if (!hdev)

+		return -1;

+	data = GET_DRV_DATA(hdev);

+

+	skb_queue_head_init(&data->readq);

+	init_waitqueue_head(&data->read_wait);

+

+	atomic_inc(&hdev->promisc);

+	file_p->private_data = data;

+

+	hci_dev_open(0);

+	return nonseekable_open(inode_p, file_p);

+}

+

+static int

+btfcd_close(struct inode  *inode_p,

+            struct file   *file_p)

+{

+  struct hci_dev *hdev;

+

+  RTKBT_DBG("btfcd close\n");

+

+  hdev = hci_dev_get(0);

+  atomic_dec(&hdev->promisc);

+

+  hci_dev_close(0);

+

+  file_p->private_data = NULL;

+  return SUCCESS;

+}

+

+static inline ssize_t usb_put_user(struct btusb_data *data,

+			struct sk_buff *skb, char __user *buf, int count)

+{

+	char __user *ptr = buf;

+	int len, total = 0;

+

+	len = min_t(unsigned int, skb->len, count);

+

+	if (copy_to_user(ptr, skb->data, len))

+		return -EFAULT;

+

+	total += len;

+

+	return total;

+}

+

+

+static struct sk_buff *rtk_skb_queue[QUEUE_SIZE];

+static int rtk_skb_queue_front = -1;

+static int rtk_skb_queue_rear = -1;

+

+static void enqueue(struct sk_buff *skb)

+{

+    if(rtk_skb_queue_front == (rtk_skb_queue_rear+1)%QUEUE_SIZE)

+    {

+    	RTKBT_ERR("queue is full\n");

+    }

+    else

+    {

+        if(rtk_skb_queue_front==-1)

+        	rtk_skb_queue_front=rtk_skb_queue_rear=0;

+        else

+        	rtk_skb_queue_rear=(rtk_skb_queue_rear+1)%QUEUE_SIZE;

+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)

+        rtk_skb_queue[rtk_skb_queue_rear] = __pskb_copy(skb, 1, GFP_ATOMIC);

+#else

+        rtk_skb_queue[rtk_skb_queue_rear] = pskb_copy(skb, GFP_ATOMIC);

+#endif

+

+    }

+}

+

+

+static struct sk_buff* dequeue(void)

+{

+	struct sk_buff *skb;

+    if(rtk_skb_queue_front == -1)

+    {

+    	RTKBT_ERR("queue is empty\n");

+        return NULL;

+    }

+    else

+    {

+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)

+    	skb = __pskb_copy(rtk_skb_queue[rtk_skb_queue_front], 1, GFP_ATOMIC);

+#else

+    	skb = pskb_copy(rtk_skb_queue[rtk_skb_queue_front], GFP_ATOMIC);

+#endif

+        kfree_skb(rtk_skb_queue[rtk_skb_queue_front]);

+        if(rtk_skb_queue_front==rtk_skb_queue_rear)

+        	rtk_skb_queue_front=rtk_skb_queue_rear=-1;

+        else

+        	rtk_skb_queue_front = (rtk_skb_queue_front+1)%QUEUE_SIZE;

+        return skb;

+    }

+    return NULL;

+}

+

+static int is_queue_empty(void)

+{

+	return (rtk_skb_queue_front == -1)?1:0;

+}

+

+static ssize_t

+btfcd_read(struct file  *file_p,

+           char __user  *buf_p,

+           size_t       count,

+           loff_t       *pos_p)

+{

+	struct btusb_data *data;

+	struct sk_buff *skb;

+	ssize_t ret = 0;

+

+	//RTKBT_DBG("==========btfcd_read\n");

+

+	while (count) {

+		data = GET_DRV_DATA(hci_dev_get(0));

+		if (!is_queue_empty()) {

+			skb = dequeue();

+		} else {

+			skb = NULL;

+		}

+		if (skb) {

+		    ret = usb_put_user(data, skb, buf_p, count);

+		    kfree_skb(skb);

+

+		    skb = NULL;

+		    if (ret < 0){

+		    	RTKBT_ERR("==========btfcd copy_to_user return -1 \n");

+		    }

+			break;

+		}

+

+		ret = wait_event_interruptible(data->read_wait, !is_queue_empty());

+		if (ret < 0){

+			//RTKBT_DBG("I return read %d \n", ret);

+			break;

+		}

+    }

+	return ret;

+} /* End of btfcd_read */

+

+static ssize_t

+btfcd_write(struct file  *file_p,

+            const char __user  *buf_p,

+            size_t       count,

+            loff_t       *pos_p)

+{

+	struct btusb_data *data = file_p->private_data;

+	struct sk_buff *skb;

+

+	//RTKBT_DBG("==========btfcd_write\n");

+

+	if (count > HCI_MAX_FRAME_SIZE)

+		return -EINVAL;

+

+	skb = bt_skb_alloc(count, GFP_ATOMIC);

+	if (!skb)

+		return -ENOMEM;

+

+	if (copy_from_user(skb_put(skb, count), buf_p, count)) {

+		printk("==========btfcd copy_from_user return -1 \n");

+		kfree_skb(skb);

+		return -EFAULT;

+	}

+

+        if (!data || !data->hdev) {

+                return -EFAULT;

+        }

+

+	skb->dev = (void *) data->hdev;

+	bt_cb(skb)->pkt_type = *((__u8 *) skb->data);

+	skb_pull(skb, 1);

+

+	data->hdev->send(skb);

+

+	return count;

+} /* End of btfcd_write */

+

+static unsigned int btfcd_poll(struct file *file, poll_table *wait)

+{

+	struct btusb_data *data;

+	data = GET_DRV_DATA(hci_dev_get(0));

+

+	//RTKBT_DBG("==========btfcd_poll\n");

+

+	poll_wait(file, &data->read_wait, wait);

+

+	if (!is_queue_empty())

+		return POLLIN | POLLRDNORM;

+

+	return POLLOUT | POLLWRNORM;

+} /* End of btfcd_poll */

+

+static int btfcd_init(void)

+{

+    printk("Registering file operations for btfcd driver\n");

+

+    /*

+     * Register btusb as a character device driver with linux OS and return

+     * ERROR on failure

+     */

+    if ((cl = class_create(THIS_MODULE, DEVICE_NAME)) == NULL)

+    {

+        return ERROR;

+    }

+    if (alloc_chrdev_region(&first, 0, 1, DEVICE_NAME) < 0)

+    {

+    	class_destroy(cl);

+        return ERROR;

+    }

+    if (device_create(cl, NULL, first, NULL, DEVICE_NAME) == NULL)

+    {

+    	unregister_chrdev_region(first, 1);

+    	class_destroy(cl);

+        return ERROR;

+    }

+    cdev_init(&c_dev, &btfcd_file_ops_g);

+    if (cdev_add(&c_dev, first, 1) == -1)

+    {

+    	device_destroy(cl, first);

+    	unregister_chrdev_region(first, 1);

+    	class_destroy(cl);

+        return ERROR;

+    }

+

+    printk("Class driver initialized successfully\n");

+

+    return SUCCESS;

+} /* end of btfcd_init() */

+

+static void btfcd_exit(void)

+{

+    printk("Unregister btfcd as a character device driver\n");

+

+    /*

+     * Unregister btusb as a character device driver with linux OS and on

+     * failure try again unregistring

+     */

+    device_destroy(cl, first);

+    cdev_del(&c_dev);

+    unregister_chrdev_region(first, 1);

+    class_destroy(cl);

+

+    printk("Exiting btfcd driver\n");

+

+    return ;

+} /* end of btfcd_exit() */

+

+static void hci_send_to_stack(struct hci_dev *hdev, struct sk_buff *skb)

+{

+	struct sk_buff *rtk_skb_copy = NULL;

+	struct btusb_data *data;

+

+	//RTKBT_DBG("hci_send_to_stack\n");

+

+	if (!hdev) {

+		RTKBT_ERR("Frame for unknown HCI device (hdev=NULL)");

+		return;

+	}

+

+	if (!test_bit(HCI_RUNNING, &hdev->flags)) {

+		RTKBT_ERR("HCI not running");

+		return;

+	}

+

+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)

+	rtk_skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC);

+#else

+	rtk_skb_copy = pskb_copy(skb, GFP_ATOMIC);

+#endif

+	if (!rtk_skb_copy) {

+		RTKBT_ERR("copy skb error");

+		return;

+	}

+

+	memcpy(skb_push(rtk_skb_copy, 1), &bt_cb(skb)->pkt_type, 1);

+	enqueue(rtk_skb_copy);

+	kfree_skb(rtk_skb_copy);

+	data = GET_DRV_DATA(hci_dev_get(0));

+	wake_up_interruptible(&data->read_wait);

+

+    return ;

+}

+/*

+ * Realtek - Add for Android 4.2 (fake character device) end

+ */

+//=========================================

+

+//=========================================

+/*

+ * Realtek - Integrate from hci_core.c

+ */

+

+/* Get HCI device by index.

+ * Device is held on return. */

+struct hci_dev *hci_dev_get(int index)

+{

+	//RTKBT_DBG("hci_dev_get index=%d", index);

+

+	if (index !=0)

+		return NULL;

+

+	if (Ghdev==NULL)

+		RTKBT_ERR("hci_dev_get Ghdev==NULL");

+	return Ghdev;

+}

+

+/* ---- HCI ioctl helpers ---- */

+int hci_dev_open(__u16 dev)

+{

+	struct hci_dev *hdev;

+	int ret = 0;

+

+	//RTKBT_DBG("hci_dev_open dev=%d ", dev);

+	hdev = hci_dev_get(dev);

+	if (!hdev)

+		return -ENODEV;

+

+	//RTKBT_DBG("%s %p", hdev->name, hdev);

+

+	//RTKBT_DBG("hci_dev_open ------------1");

+	if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) {

+		ret = -ENODEV;

+		goto done;

+	}

+

+

+	if (test_bit(HCI_UP, &hdev->flags)) {

+		ret = -EALREADY;

+		goto done;

+	}

+

+	//RTKBT_DBG("hci_dev_open ------------1");

+	if (hdev->open(hdev)) {

+		ret = -EIO;

+		goto done;

+	}

+

+	//RTKBT_DBG("hci_dev_open ------------2");

+	set_bit(HCI_UP, &hdev->flags);

+done:

+	return ret;

+}

+

+static int hci_dev_do_close(struct hci_dev *hdev)

+{

+	//RTKBT_DBG(" hci_dev_do_close %s %p", hdev->name, hdev);

+	if (hdev->flush)

+		hdev->flush(hdev);

+	/* After this point our queues are empty

+	 * and no tasks are scheduled. */

+	hdev->close(hdev);

+	/* Clear flags */

+	hdev->flags = 0;

+	return 0;

+}

+int hci_dev_close(__u16 dev)

+{

+	struct hci_dev *hdev;

+	int err;

+	//RTKBT_DBG(" hci_dev_close");

+	hdev = hci_dev_get(dev);

+	if (!hdev)

+		return -ENODEV;

+

+	err = hci_dev_do_close(hdev);

+

+	return err;

+}

+

+struct hci_dev *hci_alloc_dev(void)

+{

+	struct hci_dev *hdev;

+

+	hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);

+	if (!hdev)

+		return NULL;

+

+	return hdev;

+}

+

+/* Free HCI device */

+void hci_free_dev(struct hci_dev *hdev)

+{

+    //	skb_queue_purge(&hdev->driver_init);

+    //RTKBT_DBG("hci_free_dev-----1 ");

+	/* will free via device release */

+    //	put_device(&hdev->dev);

+    kfree(hdev);

+    //RTKBT_DBG("hci_free_dev-----2 ");

+}

+

+/* Register HCI device */

+int hci_register_dev(struct hci_dev *hdev)

+{

+	int i, id;

+

+	RTKBT_DBG("hci_register_dev %p name %s bus %d", hdev, hdev->name, hdev->bus);

+	/* Do not allow HCI_AMP devices to register at index 0,

+	 * so the index can be used as the AMP controller ID.

+	 */

+	id = (hdev->dev_type == HCI_BREDR) ? 0 : 1;

+

+	RTKBT_DBG("id=%d ",id);

+

+	write_lock(&hci_dev_list_lock);

+

+	sprintf(hdev->name, "hci%d", id);

+	RTKBT_DBG("hdev->name=%s ",hdev->name);

+	hdev->id = id;

+	mutex_init(&hdev->lock);

+

+	hdev->flags = 0;

+	hdev->dev_flags = 0;

+	for (i = 0; i < NUM_REASSEMBLY; i++)

+		hdev->reassembly[i] = NULL;

+

+	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));

+	atomic_set(&hdev->promisc, 0);

+

+	if(Ghdev)

+		RTKBT_ERR(" ====Ghdev not null !!!!");

+	Ghdev =hdev;

+	if(Ghdev)

+		RTKBT_ERR(" ===================hci_register_dev success");

+	write_unlock(&hci_dev_list_lock);

+

+	return id;

+}

+

+/* Unregister HCI device */

+void hci_unregister_dev(struct hci_dev *hdev)

+{

+	int i;

+

+	RTKBT_DBG("hci_unregister_dev hdev%p name %s bus %d", hdev, hdev->name, hdev->bus);

+	set_bit(HCI_UNREGISTER, &hdev->dev_flags);

+

+	write_lock(&hci_dev_list_lock);

+	Ghdev = NULL;

+	write_unlock(&hci_dev_list_lock);

+

+	hci_dev_do_close(hdev);

+	for (i = 0; i < NUM_REASSEMBLY; i++)

+		kfree_skb(hdev->reassembly[i]);

+}

+

+/* Receive frame from HCI drivers */

+int hci_recv_frame(struct sk_buff *skb)

+{

+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;

+//	RTKBT_DBG("hci_recv_frame hdev->flags =%d",hdev->flags);

+	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)

+				&& !test_bit(HCI_INIT, &hdev->flags))) {

+		kfree_skb(skb);

+		return -ENXIO;

+	}

+

+	/* Incomming skb */

+	bt_cb(skb)->incoming = 1;

+

+	/* Time stamp */

+	__net_timestamp(skb);

+

+	if (atomic_read(&hdev->promisc)) {

+			/* Send copy to the sockets */

+		        //RTKBT_DBG("send data to stack");

+			hci_send_to_stack(hdev, skb);

+	}

+	kfree_skb(skb);

+	return 0;

+}

+

+static int hci_reassembly(struct hci_dev *hdev, int type, void *data,

+						  int count, __u8 index)

+{

+	int len = 0;

+	int hlen = 0;

+	int remain = count;

+	struct sk_buff *skb;

+	struct bt_skb_cb *scb;

+

+	if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) ||

+				index >= NUM_REASSEMBLY)

+		return -EILSEQ;

+

+	skb = hdev->reassembly[index];

+

+	RTKBT_DBG("hci_reassembly,skb:0x%x,type:0x%x\n",skb,type);

+	if (!skb) {

+		switch (type) {

+		case HCI_ACLDATA_PKT:

+			len = HCI_MAX_FRAME_SIZE;

+			hlen = HCI_ACL_HDR_SIZE;

+			break;

+		case HCI_EVENT_PKT:

+			len = HCI_MAX_EVENT_SIZE;

+			hlen = HCI_EVENT_HDR_SIZE;

+			break;

+		case HCI_SCODATA_PKT:

+			len = HCI_MAX_SCO_SIZE;

+			hlen = HCI_SCO_HDR_SIZE;

+			break;

+		}

+

+		skb = bt_skb_alloc(len, GFP_ATOMIC);

+		if (!skb)

+			return -ENOMEM;

+

+		scb = (void *) skb->cb;

+		scb->expect = hlen;

+		scb->pkt_type = type;

+

+		skb->dev = (void *) hdev;

+		hdev->reassembly[index] = skb;

+	}

+

+	while (count) {

+		scb = (void *) skb->cb;

+		len = min_t(uint, scb->expect, count);

+

+		memcpy(skb_put(skb, len), data, len);

+

+		count -= len;

+		data += len;

+		scb->expect -= len;

+		remain = count;

+

+		switch (type) {

+		case HCI_EVENT_PKT:

+			if (skb->len == HCI_EVENT_HDR_SIZE) {

+				struct hci_event_hdr *h = hci_event_hdr(skb);

+				scb->expect = h->plen;

+

+				if (skb_tailroom(skb) < scb->expect) {

+					kfree_skb(skb);

+					hdev->reassembly[index] = NULL;

+					return -ENOMEM;

+				}

+			}

+			break;

+

+		case HCI_ACLDATA_PKT:

+			if (skb->len  == HCI_ACL_HDR_SIZE) {

+				struct hci_acl_hdr *h = hci_acl_hdr(skb);

+				scb->expect = __le16_to_cpu(h->dlen);

+

+				if (skb_tailroom(skb) < scb->expect) {

+					kfree_skb(skb);

+					hdev->reassembly[index] = NULL;

+					return -ENOMEM;

+				}

+			}

+			break;

+

+		case HCI_SCODATA_PKT:

+			if (skb->len == HCI_SCO_HDR_SIZE) {

+				struct hci_sco_hdr *h = hci_sco_hdr(skb);

+				scb->expect = h->dlen;

+

+				if (skb_tailroom(skb) < scb->expect) {

+					kfree_skb(skb);

+					hdev->reassembly[index] = NULL;

+					return -ENOMEM;

+				}

+			}

+			break;

+		}

+

+		if (scb->expect == 0) {

+			/* Complete frame */	

+			

+			if(HCI_ACLDATA_PKT==type )			

+				print_acl(skb,0);

+			if(HCI_EVENT_PKT==type)

+				print_event(skb);

+

+			bt_cb(skb)->pkt_type = type;			

+			hci_recv_frame(skb);

+

+			hdev->reassembly[index] = NULL;

+			return remain;

+		}

+	}

+

+	return remain;

+}

+

+int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)

+{

+	int rem = 0;

+

+	if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)

+		return -EILSEQ;

+

+	while (count) {

+		rem = hci_reassembly(hdev, type, data, count, type - 1);

+		if (rem < 0)

+			return rem;

+

+		data += (count - rem);

+		count = rem;

+	}

+

+	return rem;

+}

+/*

+ * Realtek - Integrate from hci_core.c end

+ */

+//=========================================

+#endif

diff --git a/ANDROID_3.4.5/drivers/bluetooth/com_btusb.h b/ANDROID_3.4.5/drivers/bluetooth/com_btusb.h
new file mode 100755
index 00000000..d3892192
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bluetooth/com_btusb.h
@@ -0,0 +1,498 @@
+/*

+ *

+ *  Realtek Bluetooth USB driver

+ *

+ *

+ *  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/interrupt.h>

+#include <linux/module.h>

+#include <linux/slab.h>

+#include <linux/types.h>

+#include <linux/sched.h>

+#include <linux/skbuff.h>

+#include <linux/errno.h>

+#include <linux/usb.h>

+#include <linux/cdev.h>

+#include <linux/device.h>

+#include <linux/poll.h>

+

+#include <linux/version.h>

+#include <linux/pm_runtime.h>

+#include <linux/firmware.h>

+#include <linux/suspend.h>

+

+

+#define CONFIG_BLUEDROID        1 //bleuz 0 ;  bluedroid 1

+

+#if CONFIG_BLUEDROID //for 4.2

+#else //for blueZ	

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

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

+	#include <net/bluetooth/hci.h>

+#endif

+

+

+/***********************************

+** Realtek - For rtk_btusb driver **

+***********************************/

+#define BTUSB_RPM		0* USB_RPM 	//	1 SS enable; 0 SS disable

+#define LOAD_CONFIG		0         // set 1 if need to reconfig bt efuse

+#define URB_CANCELING_DELAY_MS	10  	 // Added by Realtek

+//when os suspend, module is still powered,usb is not powered, 

+//this may set to 1 ,and must comply with special patch code

+#define CONFIG_RESET_RESUME		1

+#define PRINT_CMD_EVENT			0

+#define PRINT_ACL_DATA			0

+

+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 33)

+#define HDEV_BUS		hdev->bus

+#define USB_RPM			1

+#else

+#define HDEV_BUS		hdev->type

+#define USB_RPM			0

+#endif

+

+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 38)

+#define NUM_REASSEMBLY 3

+#endif

+

+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)

+#define GET_DRV_DATA(x)		hci_get_drvdata(x)

+#else

+#define GET_DRV_DATA(x)		x->driver_data

+#endif

+

+static int patch_add(struct usb_interface* intf);

+static void patch_remove(struct usb_interface* intf);

+static int download_patch(struct usb_interface* intf);

+static int set_btoff(struct usb_interface* intf);

+static void print_event(struct sk_buff *skb);

+static void print_command(struct sk_buff *skb);

+static void print_acl (struct sk_buff *skb,int dataOut);

+

+#define BTUSB_MAX_ISOC_FRAMES	10

+#define BTUSB_INTR_RUNNING		0

+#define BTUSB_BULK_RUNNING		1

+#define BTUSB_ISOC_RUNNING		2

+#define BTUSB_SUSPENDING		3

+#define BTUSB_DID_ISO_RESUME	4

+

+struct btusb_data {

+	struct hci_dev       *hdev;

+	struct usb_device    *udev;

+	struct usb_interface *intf;

+	struct usb_interface *isoc;

+

+	spinlock_t lock;

+

+	unsigned long flags;

+

+	struct work_struct work;

+	struct work_struct waker;

+

+	struct usb_anchor tx_anchor;

+	struct usb_anchor intr_anchor;

+	struct usb_anchor bulk_anchor;

+	struct usb_anchor isoc_anchor;

+	struct usb_anchor deferred;

+	int tx_in_flight;

+	spinlock_t txlock;

+

+	struct usb_endpoint_descriptor *intr_ep;

+	struct usb_endpoint_descriptor *bulk_tx_ep;

+	struct usb_endpoint_descriptor *bulk_rx_ep;

+	struct usb_endpoint_descriptor *isoc_tx_ep;

+	struct usb_endpoint_descriptor *isoc_rx_ep;

+

+	__u8 cmdreq_type;

+

+	unsigned int sco_num;

+	int isoc_altsetting;

+	int suspend_count;

+

+#if CONFIG_BLUEDROID //for 4.2

+	wait_queue_head_t read_wait;

+	struct sk_buff_head readq;

+#endif

+};

+

+/* Realtek - For rtk_btusb driver end */

+

+//========================================================================

+

+#if CONFIG_BLUEDROID //for 4.2

+#define SUCCESS               0 /* Linux success code */

+#define ERROR                -1 /* Linux error code */

+#define QUEUE_SIZE 500

+static int btfcd_init(void);

+static void btfcd_exit(void);

+static int btfcd_open(struct inode *inode_p, struct file *file_p);

+static int btfcd_close(struct inode *inode_p, struct file *file_p);

+static ssize_t btfcd_read(struct file *file_p, char *buf_p, size_t count, loff_t *pos_p);

+static ssize_t btfcd_write(struct file *file_p, const char *buf_p, size_t count, loff_t *pos_p);

+static unsigned int btfcd_poll(struct file *file, poll_table *wait);

+

+/*****************************************

+** Realtek - Integrate from bluetooth.h **

+*****************************************/

+/* Reserv for core and drivers use */

+#define BT_SKB_RESERVE	8

+

+/* BD Address */

+typedef struct {

+	__u8 b[6];

+} __packed bdaddr_t;

+

+/* Skb helpers */

+struct bt_skb_cb {

+	__u8 pkt_type;

+	__u8 incoming;

+	__u16 expect;

+	__u16 tx_seq;

+	__u8 retries;

+	__u8 sar;

+	__u8 force_active;

+};

+#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))

+

+static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)

+{

+	struct sk_buff *skb;

+

+	if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {

+		skb_reserve(skb, BT_SKB_RESERVE);

+		bt_cb(skb)->incoming  = 0;

+	}

+	return skb;

+}

+/* Realtek - Integrate from bluetooth.h end */

+

+/***********************************

+** Realtek - Integrate from hci.h **

+***********************************/

+#define HCI_MAX_ACL_SIZE	1024

+#define HCI_MAX_SCO_SIZE	255

+#define HCI_MAX_EVENT_SIZE	260

+#define HCI_MAX_FRAME_SIZE	(HCI_MAX_ACL_SIZE + 4)

+

+/* HCI bus types */

+#define HCI_VIRTUAL	0

+#define HCI_USB		1

+#define HCI_PCCARD	2

+#define HCI_UART	3

+#define HCI_RS232	4

+#define HCI_PCI		5

+#define HCI_SDIO	6

+

+/* HCI controller types */

+#define HCI_BREDR	0x00

+#define HCI_AMP		0x01

+

+/* HCI device flags */

+enum {

+	HCI_UP,

+	HCI_INIT,

+	HCI_RUNNING,

+

+	HCI_PSCAN,

+	HCI_ISCAN,

+	HCI_AUTH,

+	HCI_ENCRYPT,

+	HCI_INQUIRY,

+

+	HCI_RAW,

+

+	HCI_RESET,

+};

+

+/*

+ * BR/EDR and/or LE controller flags: the flags defined here should represent

+ * states from the controller.

+ */

+enum {

+	HCI_SETUP,

+	HCI_AUTO_OFF,

+	HCI_MGMT,

+	HCI_PAIRABLE,

+	HCI_SERVICE_CACHE,

+	HCI_LINK_KEYS,

+	HCI_DEBUG_KEYS,

+	HCI_UNREGISTER,

+

+	HCI_LE_SCAN,

+	HCI_SSP_ENABLED,

+	HCI_HS_ENABLED,

+	HCI_LE_ENABLED,

+	HCI_CONNECTABLE,

+	HCI_DISCOVERABLE,

+	HCI_LINK_SECURITY,

+	HCI_PENDING_CLASS,

+};

+

+/* HCI data types */

+#define HCI_COMMAND_PKT		0x01

+#define HCI_ACLDATA_PKT		0x02

+#define HCI_SCODATA_PKT		0x03

+#define HCI_EVENT_PKT		0x04

+#define HCI_VENDOR_PKT		0xff

+

+#define HCI_MAX_NAME_LENGTH		248

+#define HCI_MAX_EIR_LENGTH		240

+

+#define HCI_OP_READ_LOCAL_VERSION	0x1001

+struct hci_rp_read_local_version {

+	__u8     status;

+	__u8     hci_ver;

+	__le16   hci_rev;

+	__u8     lmp_ver;

+	__le16   manufacturer;

+	__le16   lmp_subver;

+} __packed;

+

+#define HCI_EV_CMD_COMPLETE		0x0e

+struct hci_ev_cmd_complete {

+	__u8     ncmd;

+	__le16   opcode;

+} __packed;

+

+/* ---- HCI Packet structures ---- */

+#define HCI_COMMAND_HDR_SIZE 3

+#define HCI_EVENT_HDR_SIZE   2

+#define HCI_ACL_HDR_SIZE     4

+#define HCI_SCO_HDR_SIZE     3

+

+struct hci_command_hdr {

+	__le16	opcode;		/* OCF & OGF */

+	__u8	plen;

+} __packed;

+

+struct hci_event_hdr {

+	__u8	evt;

+	__u8	plen;

+} __packed;

+

+struct hci_acl_hdr {

+	__le16	handle;		/* Handle & Flags(PB, BC) */

+	__le16	dlen;

+} __packed;

+

+struct hci_sco_hdr {

+	__le16	handle;

+	__u8	dlen;

+} __packed;

+

+static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)

+{

+	return (struct hci_event_hdr *) skb->data;

+}

+

+static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)

+{

+	return (struct hci_acl_hdr *) skb->data;

+}

+

+static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)

+{

+	return (struct hci_sco_hdr *) skb->data;

+}

+

+/* ---- HCI Ioctl requests structures ---- */

+struct hci_dev_stats {

+	__u32 err_rx;

+	__u32 err_tx;

+	__u32 cmd_tx;

+	__u32 evt_rx;

+	__u32 acl_tx;

+	__u32 acl_rx;

+	__u32 sco_tx;

+	__u32 sco_rx;

+	__u32 byte_rx;

+	__u32 byte_tx;

+};

+/* Realtek - Integrate from hci.h end */

+

+/*****************************************

+** Realtek - Integrate from hci_core.h  **

+*****************************************/

+struct hci_conn_hash {

+	struct list_head list;

+	unsigned int     acl_num;

+	unsigned int     sco_num;

+	unsigned int     le_num;

+};

+

+#define HCI_MAX_SHORT_NAME_LENGTH	10

+

+#define NUM_REASSEMBLY 4

+struct hci_dev {

+	struct mutex	lock;

+

+	char		name[8];

+	unsigned long	flags;

+	__u16		id;

+	__u8		bus;

+	__u8		dev_type;

+

+	struct sk_buff		*reassembly[NUM_REASSEMBLY];

+

+	struct hci_conn_hash	conn_hash;

+

+	struct hci_dev_stats	stat;

+

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)

+	atomic_t        refcnt;

+	struct module           *owner;

+	void                    *driver_data;

+#endif

+

+	atomic_t		promisc;

+

+    struct device		*parent;

+	struct device		dev;

+

+	unsigned long		dev_flags;

+

+	int (*open)(struct hci_dev *hdev);

+	int (*close)(struct hci_dev *hdev);

+	int (*flush)(struct hci_dev *hdev);

+	int (*send)(struct sk_buff *skb);

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)

+	void (*destruct)(struct hci_dev *hdev);

+#endif

+	void (*notify)(struct hci_dev *hdev, unsigned int evt);

+	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);

+};

+

+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0)

+static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)

+{

+        atomic_inc(&d->refcnt);

+        return d;

+}

+

+static inline void __hci_dev_put(struct hci_dev *d)

+{

+        if (atomic_dec_and_test(&d->refcnt))

+                d->destruct(d);

+}

+#endif

+

+static inline void *hci_get_drvdata(struct hci_dev *hdev)

+{

+	return dev_get_drvdata(&hdev->dev);

+}

+

+static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)

+{

+	dev_set_drvdata(&hdev->dev, data);

+}

+

+struct hci_dev *hci_dev_get(int index);

+

+struct hci_dev *hci_alloc_dev(void);

+void hci_free_dev(struct hci_dev *hdev);

+int hci_register_dev(struct hci_dev *hdev);

+void hci_unregister_dev(struct hci_dev *hdev);

+int hci_dev_open(__u16 dev);

+int hci_dev_close(__u16 dev);

+

+int hci_recv_frame(struct sk_buff *skb);

+int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);

+

+#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))

+/* Realtek - Integrate from hci_core.h end */

+

+

+

+/* -----  HCI Commands ---- */

+#define HCI_OP_INQUIRY			0x0401

+#define HCI_OP_INQUIRY_CANCEL		0x0402

+#define HCI_OP_EXIT_PERIODIC_INQ	0x0404

+#define HCI_OP_CREATE_CONN		0x0405

+#define HCI_OP_ADD_SCO			0x0407

+#define HCI_OP_CREATE_CONN_CANCEL	0x0408

+#define HCI_OP_ACCEPT_CONN_REQ		0x0409

+#define HCI_OP_REJECT_CONN_REQ		0x040a

+#define HCI_OP_LINK_KEY_REPLY		0x040b

+#define HCI_OP_LINK_KEY_NEG_REPLY	0x040c

+#define HCI_OP_PIN_CODE_REPLY		0x040d

+#define HCI_OP_PIN_CODE_NEG_REPLY	0x040e

+#define HCI_OP_CHANGE_CONN_PTYPE	0x040f

+#define HCI_OP_AUTH_REQUESTED		0x0411

+#define HCI_OP_SET_CONN_ENCRYPT		0x0413

+#define HCI_OP_CHANGE_CONN_LINK_KEY	0x0415

+#define HCI_OP_REMOTE_NAME_REQ		0x0419

+#define HCI_OP_REMOTE_NAME_REQ_CANCEL	0x041a

+#define HCI_OP_READ_REMOTE_FEATURES	0x041b

+#define HCI_OP_READ_REMOTE_EXT_FEATURES	0x041c

+#define HCI_OP_READ_REMOTE_VERSION	0x041d

+#define HCI_OP_SETUP_SYNC_CONN		0x0428

+#define HCI_OP_ACCEPT_SYNC_CONN_REQ	0x0429

+#define HCI_OP_REJECT_SYNC_CONN_REQ	0x042a

+#define HCI_OP_SNIFF_MODE		0x0803

+#define HCI_OP_EXIT_SNIFF_MODE		0x0804

+#define HCI_OP_ROLE_DISCOVERY		0x0809

+#define HCI_OP_SWITCH_ROLE		0x080b

+#define HCI_OP_READ_LINK_POLICY		0x080c

+#define HCI_OP_WRITE_LINK_POLICY	0x080d

+#define HCI_OP_READ_DEF_LINK_POLICY	0x080e

+#define HCI_OP_WRITE_DEF_LINK_POLICY	0x080f

+#define HCI_OP_SNIFF_SUBRATE		0x0811

+#define HCI_OP_SET_EVENT_MASK		0x0c01

+#define HCI_OP_RESET			0x0c03

+#define HCI_OP_SET_EVENT_FLT		0x0c05

+

+/* -----  HCI events---- */

+#define HCI_OP_DISCONNECT		0x0406

+#define HCI_EV_INQUIRY_COMPLETE		0x01

+#define HCI_EV_INQUIRY_RESULT		0x02

+#define HCI_EV_CONN_COMPLETE		0x03

+#define HCI_EV_CONN_REQUEST			0x04

+#define HCI_EV_DISCONN_COMPLETE		0x05

+#define HCI_EV_AUTH_COMPLETE		0x06

+#define HCI_EV_REMOTE_NAME			0x07

+#define HCI_EV_ENCRYPT_CHANGE		0x08

+#define HCI_EV_CHANGE_LINK_KEY_COMPLETE	0x09

+

+#define HCI_EV_REMOTE_FEATURES		0x0b

+#define HCI_EV_REMOTE_VERSION		0x0c

+#define HCI_EV_QOS_SETUP_COMPLETE	0x0d

+#define HCI_EV_CMD_COMPLETE			0x0e

+#define HCI_EV_CMD_STATUS			0x0f

+

+#define HCI_EV_ROLE_CHANGE			0x12

+#define HCI_EV_NUM_COMP_PKTS		0x13

+#define HCI_EV_MODE_CHANGE			0x14

+#define HCI_EV_PIN_CODE_REQ			0x16

+#define HCI_EV_LINK_KEY_REQ			0x17

+#define HCI_EV_LINK_KEY_NOTIFY		0x18

+#define HCI_EV_CLOCK_OFFSET			0x1c

+#define HCI_EV_PKT_TYPE_CHANGE		0x1d

+#define HCI_EV_PSCAN_REP_MODE		0x20

+

+#define HCI_EV_INQUIRY_RESULT_WITH_RSSI	0x22

+#define HCI_EV_REMOTE_EXT_FEATURES	0x23

+#define HCI_EV_SYNC_CONN_COMPLETE	0x2c

+#define HCI_EV_SYNC_CONN_CHANGED	0x2d

+#define HCI_EV_SNIFF_SUBRATE			0x2e

+#define HCI_EV_EXTENDED_INQUIRY_RESULT	0x2f

+#define HCI_EV_IO_CAPA_REQUEST		0x31

+#define HCI_EV_SIMPLE_PAIR_COMPLETE	0x36

+#define HCI_EV_REMOTE_HOST_FEATURES	0x3d

+

+

+#endif //if bluedroid 4.2

diff --git a/ANDROID_3.4.5/drivers/bluetooth/rtk_btusb.c b/ANDROID_3.4.5/drivers/bluetooth/rtk_btusb.c
new file mode 100755
index 00000000..9037d780
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bluetooth/rtk_btusb.c
@@ -0,0 +1,3151 @@
+/*
+ *
+ *  Realtek Bluetooth USB driver
+ *
+ *
+ *  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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/skbuff.h>
+#include <linux/usb.h>
+#include <mach/wmt_misc.h> //added by rubbitxiao
+/*******************************/
+#include "rtk_btusb.h"
+#define VERSION "2.19"
+
+#define DBG_FLAG 0
+#if DBG_FLAG
+#define RTKBT_DBG(fmt, arg...) printk(KERN_INFO "rtk_btusb: " fmt "\n" , ## arg)
+#else
+#define RTKBT_DBG(fmt, arg...)
+#endif
+#define RTKBT_INFO(fmt, arg...) printk(KERN_INFO "rtk_btusb: " fmt "\n" , ## arg)
+#define RTKBT_WARN(fmt, arg...) printk(KERN_WARNING "rtk_btusb: " fmt "\n" , ## arg)
+#define RTKBT_ERR(fmt, arg...) printk(KERN_ERR "rtk_btusb: " fmt "\n" , ## arg)
+
+/*******************************
+**    Reasil patch code
+********************************/
+#define CMD_CMP_EVT		0x0e
+#define PKT_LEN			300
+#define MSG_TO			1000
+#define PATCH_SEG_MAX	252
+#define DATA_END		0x80
+#define DOWNLOAD_OPCODE	0xfc20
+#define BTOFF_OPCODE	0xfc28
+#define TRUE			1
+#define FALSE			0
+#define CMD_HDR_LEN		sizeof(struct hci_command_hdr)
+#define EVT_HDR_LEN		sizeof(struct hci_event_hdr)
+#define CMD_CMP_LEN		sizeof(struct hci_ev_cmd_complete)
+
+enum rtk_endpoit {
+	CTRL_EP = 0,
+	INTR_EP = 1,
+	BULK_EP = 2,
+	ISOC_EP = 3
+};
+
+typedef struct {
+	uint16_t	prod_id;
+	uint16_t	lmp_sub_default;
+	uint16_t	lmp_sub;
+	uint16_t	eversion;
+	char		*mp_patch_name;
+	char		*patch_name;
+	char		*config_name;
+	uint8_t		*fw_cache;
+	int			fw_len;
+} patch_info;
+
+typedef struct {
+	struct usb_interface	*intf;
+	struct usb_device		*udev;
+	patch_info *patch_entry;
+	int			pipe_in, pipe_out;
+	uint8_t		*send_pkt;
+	uint8_t		*rcv_pkt;
+	struct hci_command_hdr		*cmd_hdr;
+	struct hci_event_hdr		*evt_hdr;
+	struct hci_ev_cmd_complete	*cmd_cmp;
+	uint8_t		*req_para,	*rsp_para;
+	uint8_t		*fw_data;
+	int			pkt_len;
+	int			fw_len;
+} firmware_info;
+
+typedef struct {
+	uint8_t index;
+	uint8_t data[PATCH_SEG_MAX];
+} __attribute__((packed)) download_cp;
+
+typedef struct {
+	uint8_t status;
+	uint8_t index;
+} __attribute__((packed)) download_rp;
+
+static patch_info fw_patch_table[] = {
+/* { pid, lmp_sub_default, lmp_sub, everion, mp_fw_name, fw_name, config_name, fw_cache, fw_len } */
+{ 0x1724, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* RTL8723A */
+{ 0x8723, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AE */
+{ 0xA723, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AE for LI */
+{ 0x0723, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AE */
+{ 0x3394, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AE for Azurewave*/
+
+{ 0x0724, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AU */
+{ 0x8725, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AU */
+{ 0x872A, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AU */
+{ 0x872B, 0x1200, 0, 0, "mp_rtl8723a_fw", "rtl8723a_fw", "rtl8723a_config", NULL, 0 }, /* 8723AU */
+
+{ 0xb720, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723bu_config", NULL, 0 }, /* RTL8723BU */
+{ 0xb72A, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723bu_config", NULL, 0 }, /* RTL8723BU */
+{ 0xb728, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for LC */
+{ 0xb723, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE */
+{ 0xb72B, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE */
+{ 0xb001, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for HP */
+{ 0xb002, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE */
+{ 0xb003, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE */
+{ 0xb004, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE */
+{ 0xb005, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE */
+
+{ 0x3410, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for Azurewave */
+{ 0x3416, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for Azurewave */
+{ 0x3459, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for Azurewave */
+{ 0xE085, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for Foxconn */
+{ 0xE08B, 0x8723, 0, 0, "mp_rtl8723b_fw", "rtl8723b_fw", "rtl8723b_config", NULL, 0 }, /* RTL8723BE for Foxconn */
+
+{ 0xA761, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au_fw", "rtl8761a_config", NULL, 0 }, /* RTL8761AU only */
+{ 0x818B, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761aw8192eu_fw", "rtl8761aw8192eu_config", NULL, 0 }, /* RTL8761AW + 8192EU */
+{ 0x818C, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761aw8192eu_fw", "rtl8761aw8192eu_config", NULL, 0 }, /* RTL8761AW + 8192EU */
+{ 0x8760, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8192ee_fw", "rtl8761a_config", NULL, 0 }, /* RTL8761AU + 8192EE */
+{ 0xB761, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8192ee_fw", "rtl8761a_config", NULL, 0 }, /* RTL8761AU + 8192EE */
+{ 0x8761, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8192ee_fw", "rtl8761a_config", NULL, 0 }, /* RTL8761AU + 8192EE for LI */
+{ 0x8A60, 0x8761, 0, 0, "mp_rtl8761a_fw", "rtl8761au8812ae_fw", "rtl8761a_config", NULL, 0 }, /* RTL8761AU + 8812AE */
+
+{ 0x8821, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AE */
+{ 0x0821, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AE */
+{ 0x0823, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AU */
+{ 0x3414, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AE */
+{ 0x3458, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AE */
+{ 0x3461, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AE */
+{ 0x3462, 0x8821, 0, 0, "mp_rtl8821a_fw", "rtl8821a_fw", "rtl8821a_config", NULL, 0 }, /* RTL8821AE */
+
+/* NOTE: must append patch entries above the null entry */
+{ 0, 0, 0, 0, NULL, NULL, NULL, NULL, 0 }
+};
+
+struct btusb_data {
+	struct hci_dev       *hdev;
+	struct usb_device    *udev;
+	struct usb_interface *intf;
+	struct usb_interface *isoc;
+
+	spinlock_t lock;
+
+	unsigned long flags;
+
+	struct work_struct work;
+	struct work_struct waker;
+
+	struct usb_anchor tx_anchor;
+	struct usb_anchor intr_anchor;
+	struct usb_anchor bulk_anchor;
+	struct usb_anchor isoc_anchor;
+	struct usb_anchor deferred;
+	int tx_in_flight;
+	spinlock_t txlock;
+
+	struct usb_endpoint_descriptor *intr_ep;
+	struct usb_endpoint_descriptor *bulk_tx_ep;
+	struct usb_endpoint_descriptor *bulk_rx_ep;
+	struct usb_endpoint_descriptor *isoc_tx_ep;
+	struct usb_endpoint_descriptor *isoc_rx_ep;
+
+	__u8 cmdreq_type;
+
+	unsigned int sco_num;
+	int isoc_altsetting;
+	int suspend_count;
+//#ifdef CONFIG_HAS_EARLYSUSPEND
+#if 0
+	struct early_suspend early_suspend;
+#else
+	struct notifier_block pm_notifier;
+#endif
+	firmware_info *fw_info;
+};
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 1)
+static bool reset_on_close = 0;
+#endif
+
+static void rtk_free( struct btusb_data *data)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 1)
+	kfree(data);
+#endif
+	return;
+}
+
+static struct btusb_data *rtk_alloc(struct usb_interface *intf)
+{
+	struct btusb_data *data;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 7, 1)
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+#else
+	data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
+#endif
+	return data;
+}
+
+static void print_acl(struct sk_buff *skb, int direction)
+{
+#if PRINT_ACL_DATA
+	uint wlength = skb->len;
+	u16 *handle = (u16 *)(skb->data);
+	u16 len = *(handle+1);
+	u8 *acl_data = (u8 *)(skb->data);
+
+	RTK_INFO("%s: direction %d, handle %04x, len %d",
+			__func__, direction, *handle, len);
+#endif
+}
+
+static void print_sco(struct sk_buff *skb, int direction)
+{
+#if PRINT_SCO_DATA
+	uint wlength = skb->len;
+	u16 *handle = (u16 *)(skb->data);
+	u8 len = *(u8 *)(handle+1);
+	u8 *sco_data =(u8 *)(skb->data);
+
+	RTKBT_INFO("%s: direction %d, handle %04x, len %d",
+			__func__, direction, *handle, len);
+#endif
+}
+
+static void print_error_command(struct sk_buff *skb)
+{
+	uint wlength = skb->len;
+	uint icount = 0;
+	u16 *opcode = (u16*)(skb->data);
+	u8 *cmd_data = (u8*)(skb->data);
+	u8 len = *(cmd_data+2);
+
+	switch (*opcode) {
+	case HCI_OP_INQUIRY:
+		printk("HCI_OP_INQUIRY");
+		break;
+	case HCI_OP_INQUIRY_CANCEL:
+		printk("HCI_OP_INQUIRY_CANCEL");
+		break;
+	case HCI_OP_EXIT_PERIODIC_INQ:
+		printk("HCI_OP_EXIT_PERIODIC_INQ");
+		break;
+	case HCI_OP_CREATE_CONN:
+		printk("HCI_OP_CREATE_CONN");
+		break;
+	case HCI_OP_DISCONNECT:
+		printk("HCI_OP_DISCONNECT");
+		break;
+	case HCI_OP_CREATE_CONN_CANCEL:
+		printk("HCI_OP_CREATE_CONN_CANCEL");
+		break;
+	case HCI_OP_ACCEPT_CONN_REQ:
+		printk("HCI_OP_ACCEPT_CONN_REQ");
+		break;
+	case HCI_OP_REJECT_CONN_REQ:
+		printk("HCI_OP_REJECT_CONN_REQ");
+		break;
+	case HCI_OP_AUTH_REQUESTED:
+		printk("HCI_OP_AUTH_REQUESTED");
+		break;
+	case HCI_OP_SET_CONN_ENCRYPT:
+		printk("HCI_OP_SET_CONN_ENCRYPT");
+		break;
+	case HCI_OP_REMOTE_NAME_REQ:
+		printk("HCI_OP_REMOTE_NAME_REQ");
+		break;
+	case HCI_OP_READ_REMOTE_FEATURES:
+		printk("HCI_OP_READ_REMOTE_FEATURES");
+		break;
+	case HCI_OP_SNIFF_MODE:
+		printk("HCI_OP_SNIFF_MODE");
+		break;
+	case HCI_OP_EXIT_SNIFF_MODE:
+		printk("HCI_OP_EXIT_SNIFF_MODE");
+		break;
+	case HCI_OP_SWITCH_ROLE:
+		printk("HCI_OP_SWITCH_ROLE");
+		break;
+	case HCI_OP_SNIFF_SUBRATE:
+		printk("HCI_OP_SNIFF_SUBRATE");
+		break;
+	case HCI_OP_RESET:
+		printk("HCI_OP_RESET");
+		break;
+	default:
+		printk("CMD");
+		break;
+	}
+	printk(":%04x,len:%d,", *opcode,len);
+	for (icount = 3; (icount < wlength) && (icount < 24); icount++)
+		printk("%02x ", *(cmd_data+icount));
+	printk("\n");
+}
+
+static void print_command(struct sk_buff *skb)
+{
+#if PRINT_CMD_EVENT
+	print_error_command(skb);
+#endif
+}
+
+#if CONFIG_BLUEDROID
+/* Global parameters for bt usb char driver */
+#define BT_CHAR_DEVICE_NAME "rtk_btusb"
+struct mutex btchr_mutex;
+static struct sk_buff_head btchr_readq;
+static wait_queue_head_t btchr_read_wait;
+static int bt_char_dev_registered;
+static dev_t bt_devid; /* bt char device number */
+static struct cdev bt_char_dev; /* bt character device structure */
+static struct class *bt_char_class; /* device class for usb char driver */
+static int bt_reset = 0;
+/* HCI device & lock */
+DEFINE_RWLOCK(hci_dev_lock);
+struct hci_dev *ghdev = NULL;
+
+static void print_event(struct sk_buff *skb)
+{
+#if PRINT_CMD_EVENT
+	uint wlength = skb->len;
+	uint icount = 0;
+	u8 *opcode = (u8*)(skb->data);
+	u8 len = *(opcode+1);
+
+	switch (*opcode) {
+	case HCI_EV_INQUIRY_COMPLETE:
+		printk("HCI_EV_INQUIRY_COMPLETE");
+		break;
+	case HCI_EV_INQUIRY_RESULT:
+		printk("HCI_EV_INQUIRY_RESULT");
+		break;
+	case HCI_EV_CONN_COMPLETE:
+		printk("HCI_EV_CONN_COMPLETE");
+		break;
+	case HCI_EV_CONN_REQUEST:
+		printk("HCI_EV_CONN_REQUEST");
+		break;
+	case HCI_EV_DISCONN_COMPLETE:
+		printk("HCI_EV_DISCONN_COMPLETE");
+		break;
+	case HCI_EV_AUTH_COMPLETE:
+		printk("HCI_EV_AUTH_COMPLETE");
+		break;
+	case HCI_EV_REMOTE_NAME:
+		printk("HCI_EV_REMOTE_NAME");
+		break;
+	case HCI_EV_ENCRYPT_CHANGE:
+		printk("HCI_EV_ENCRYPT_CHANGE");
+		break;
+	case HCI_EV_CHANGE_LINK_KEY_COMPLETE:
+		printk("HCI_EV_CHANGE_LINK_KEY_COMPLETE");
+		break;
+	case HCI_EV_REMOTE_FEATURES:
+		printk("HCI_EV_REMOTE_FEATURES");
+		break;
+	case HCI_EV_REMOTE_VERSION:
+		printk("HCI_EV_REMOTE_VERSION");
+		break;
+	case HCI_EV_QOS_SETUP_COMPLETE:
+		printk("HCI_EV_QOS_SETUP_COMPLETE");
+		break;
+	case HCI_EV_CMD_COMPLETE:
+		printk("HCI_EV_CMD_COMPLETE");
+		break;
+	case HCI_EV_CMD_STATUS:
+		printk("HCI_EV_CMD_STATUS");
+		break;
+	case HCI_EV_ROLE_CHANGE:
+		printk("HCI_EV_ROLE_CHANGE");
+		break;
+	case HCI_EV_NUM_COMP_PKTS:
+		printk("HCI_EV_NUM_COMP_PKTS");
+		break;
+	case HCI_EV_MODE_CHANGE:
+		printk("HCI_EV_MODE_CHANGE");
+		break;
+	case HCI_EV_PIN_CODE_REQ:
+		printk("HCI_EV_PIN_CODE_REQ");
+		break;
+	case HCI_EV_LINK_KEY_REQ:
+		printk("HCI_EV_LINK_KEY_REQ");
+		break;
+	case HCI_EV_LINK_KEY_NOTIFY:
+		printk("HCI_EV_LINK_KEY_NOTIFY");
+		break;
+	case HCI_EV_CLOCK_OFFSET:
+		printk("HCI_EV_CLOCK_OFFSET");
+		break;
+	case HCI_EV_PKT_TYPE_CHANGE:
+		printk("HCI_EV_PKT_TYPE_CHANGE");
+		break;
+	case HCI_EV_PSCAN_REP_MODE:
+		printk("HCI_EV_PSCAN_REP_MODE");
+		break;
+	case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
+		printk("HCI_EV_INQUIRY_RESULT_WITH_RSSI");
+		break;
+	case HCI_EV_REMOTE_EXT_FEATURES:
+		printk("HCI_EV_REMOTE_EXT_FEATURES");
+		break;
+	case HCI_EV_SYNC_CONN_COMPLETE:
+		printk("HCI_EV_SYNC_CONN_COMPLETE");
+		break;
+	case HCI_EV_SYNC_CONN_CHANGED:
+		printk("HCI_EV_SYNC_CONN_CHANGED");
+		break;
+	case HCI_EV_SNIFF_SUBRATE:
+		printk("HCI_EV_SNIFF_SUBRATE");
+		break;
+	case HCI_EV_EXTENDED_INQUIRY_RESULT:
+		printk("HCI_EV_EXTENDED_INQUIRY_RESULT");
+		break;
+	case HCI_EV_IO_CAPA_REQUEST:
+		printk("HCI_EV_IO_CAPA_REQUEST");
+		break;
+	case HCI_EV_SIMPLE_PAIR_COMPLETE:
+		printk("HCI_EV_SIMPLE_PAIR_COMPLETE");
+		break;
+	case HCI_EV_REMOTE_HOST_FEATURES:
+		printk("HCI_EV_REMOTE_HOST_FEATURES");
+		break;
+	default:
+		printk("event");
+		break;
+	}
+	printk(":%02x,len:%d,", *opcode,len);
+	for (icount = 2; (icount < wlength) && (icount < 24); icount++)
+		printk("%02x ", *(opcode+icount));
+	printk("\n");
+#endif
+}
+
+static inline ssize_t usb_put_user(struct sk_buff *skb,
+		char __user *buf, int count)
+{
+	char __user *ptr = buf;
+	int len = min_t(unsigned int, skb->len, count);
+
+	if (copy_to_user(ptr, skb->data, len))
+		return -EFAULT;
+
+	return len;
+}
+
+static struct sk_buff *rtk_skb_queue[QUEUE_SIZE];
+static int rtk_skb_queue_front = -1;
+static int rtk_skb_queue_rear = -1;
+
+static void rtk_enqueue(struct sk_buff *skb)
+{
+	if (rtk_skb_queue_front == (rtk_skb_queue_rear + 1) % QUEUE_SIZE) {
+		/*
+		 * If queue is full, current solution is to drop
+		 * the following entries.
+		 */
+		RTKBT_WARN("%s: Queue is full, entry will be dropped", __func__);
+	} else {
+		if (rtk_skb_queue_front == -1) {
+			rtk_skb_queue_front = 0;
+			rtk_skb_queue_rear = 0;
+		} else {
+			rtk_skb_queue_rear++;
+			rtk_skb_queue_rear %= QUEUE_SIZE;
+		}
+
+		rtk_skb_queue[rtk_skb_queue_rear] = skb;
+	}
+}
+
+static struct sk_buff *rtk_dequeue_try(unsigned int deq_len)
+{
+	struct sk_buff *skb;
+	struct sk_buff *skb_copy;
+
+	if (rtk_skb_queue_front == -1) {
+		RTKBT_WARN("%s: Queue is empty", __func__);
+		return NULL;
+	}
+
+	skb = rtk_skb_queue[rtk_skb_queue_front];
+	if (deq_len >= skb->len) {
+		if (rtk_skb_queue_front == rtk_skb_queue_rear) {
+			rtk_skb_queue_front = -1;
+			rtk_skb_queue_rear = -1;
+		} else {
+			rtk_skb_queue_front++;
+			rtk_skb_queue_front %= QUEUE_SIZE;
+		}
+		/*
+		 * Return skb addr to be dequeued, and the caller
+		 * should free the skb eventually.
+		 */
+		return skb;
+	} else {
+		skb_copy = pskb_copy(skb, GFP_ATOMIC);
+		skb_pull(skb, deq_len);
+		/* Return its copy to be freed */
+		return skb_copy;
+	}
+}
+
+static inline int is_queue_empty(void)
+{
+	return (rtk_skb_queue_front == -1) ? 1 : 0;
+}
+
+/*
+ * Realtek - Integrate from hci_core.c
+ */
+
+/* Get HCI device by index.
+ * Device is held on return. */
+static struct hci_dev *hci_dev_get(int index)
+{
+	if (index != 0)
+		return NULL;
+
+	return ghdev;
+}
+
+/* ---- HCI ioctl helpers ---- */
+static int hci_dev_open(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int ret = 0;
+
+	RTKBT_DBG("%s: dev %d", __func__, dev);
+
+	hdev = hci_dev_get(dev);
+	if (!hdev) {
+		RTKBT_ERR("%s: Failed to get hci dev[Null]", __func__);
+		return -ENODEV;
+	}
+
+	if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) {
+		ret = -ENODEV;
+		goto done;
+	}
+
+	if (test_bit(HCI_UP, &hdev->flags)) {
+		ret = -EALREADY;
+		goto done;
+	}
+
+	if (hdev->open(hdev)) {
+		ret = -EIO;
+		goto done;
+	}
+
+	set_bit(HCI_UP, &hdev->flags);
+done:
+	return ret;
+}
+
+static int hci_dev_do_close(struct hci_dev *hdev)
+{
+	if (hdev->flush)
+		hdev->flush(hdev);
+	/* After this point our queues are empty
+	 * and no tasks are scheduled. */
+	hdev->close(hdev);
+	/* Clear flags */
+	hdev->flags = 0;
+	return 0;
+}
+
+static int hci_dev_close(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int err;
+	hdev = hci_dev_get(dev);
+	if (!hdev) {
+		RTKBT_ERR("%s: failed to get hci dev[Null]", __func__);
+		return -ENODEV;
+	}
+
+	err = hci_dev_do_close(hdev);
+
+	return err;
+}
+
+static struct hci_dev *hci_alloc_dev(void)
+{
+	struct hci_dev *hdev;
+
+	hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
+	if (!hdev)
+		return NULL;
+
+	return hdev;
+}
+
+/* Free HCI device */
+static void hci_free_dev(struct hci_dev *hdev)
+{
+	kfree(hdev);
+}
+
+/* Register HCI device */
+static int hci_register_dev(struct hci_dev *hdev)
+{
+	int i, id;
+
+	RTKBT_DBG("%s: %p name %s bus %d", __func__, hdev, hdev->name, hdev->bus);
+	/* Do not allow HCI_AMP devices to register at index 0,
+	 * so the index can be used as the AMP controller ID.
+	 */
+	id = (hdev->dev_type == HCI_BREDR) ? 0 : 1;
+
+	write_lock(&hci_dev_lock);
+
+	sprintf(hdev->name, "hci%d", id);
+	hdev->id = id;
+	hdev->flags = 0;
+	hdev->dev_flags = 0;
+	mutex_init(&hdev->lock);
+
+	RTKBT_DBG("%s: id %d, name %s", __func__, hdev->id, hdev->name);
+
+
+	for (i = 0; i < NUM_REASSEMBLY; i++)
+		hdev->reassembly[i] = NULL;
+
+	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
+	atomic_set(&hdev->promisc, 0);
+
+	if (ghdev) {
+		RTKBT_ERR("%s: Hci device has been registered already", __func__);
+		return -1;
+	} else
+		ghdev = hdev;
+
+	write_unlock(&hci_dev_lock);
+
+	return id;
+}
+
+/* Unregister HCI device */
+static void hci_unregister_dev(struct hci_dev *hdev)
+{
+	int i;
+
+	RTKBT_DBG("%s: hdev %p name %s bus %d", __func__, hdev, hdev->name, hdev->bus);
+	set_bit(HCI_UNREGISTER, &hdev->dev_flags);
+
+	write_lock(&hci_dev_lock);
+	ghdev = NULL;
+	write_unlock(&hci_dev_lock);
+
+	hci_dev_do_close(hdev);
+	for (i = 0; i < NUM_REASSEMBLY; i++)
+		kfree_skb(hdev->reassembly[i]);
+}
+
+static void hci_send_to_stack(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct sk_buff *rtk_skb_copy = NULL;
+
+	RTKBT_DBG("%s", __func__);
+
+	if (!hdev) {
+		RTKBT_ERR("%s: Frame for unknown HCI device", __func__);
+		return;
+	}
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+		RTKBT_ERR("%s: HCI not running", __func__);
+		return;
+	}
+
+	rtk_skb_copy = pskb_copy(skb, GFP_ATOMIC);
+	if (!rtk_skb_copy) {
+		RTKBT_ERR("%s: Copy skb error", __func__);
+		return;
+	}
+
+	memcpy(skb_push(rtk_skb_copy, 1), &bt_cb(skb)->pkt_type, 1);
+	rtk_enqueue(rtk_skb_copy);
+
+	/* Make sure bt char device existing before wakeup read queue */
+	hdev = hci_dev_get(0);
+	if (hdev) {
+		RTKBT_DBG("%s: Try to wakeup read queue", __func__);
+		wake_up_interruptible(&btchr_read_wait);
+	}
+
+	return;
+}
+
+/* Receive frame from HCI drivers */
+static int hci_recv_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+
+	if (!hdev ||
+		(!test_bit(HCI_UP, &hdev->flags) && !test_bit(HCI_INIT, &hdev->flags))) {
+		kfree_skb(skb);
+		return -ENXIO;
+	}
+
+	/* Incomming skb */
+	bt_cb(skb)->incoming = 1;
+
+	/* Time stamp */
+	__net_timestamp(skb);
+
+	if (atomic_read(&hdev->promisc)) {
+		/* Send copy to the sockets */
+		hci_send_to_stack(hdev, skb);
+	}
+	kfree_skb(skb);
+	return 0;
+}
+
+static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
+						  int count, __u8 index)
+{
+	int len = 0;
+	int hlen = 0;
+	int remain = count;
+	struct sk_buff *skb;
+	struct bt_skb_cb *scb;
+
+	RTKBT_DBG("%s", __func__);
+
+	if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) ||
+			index >= NUM_REASSEMBLY)
+		return -EILSEQ;
+
+	skb = hdev->reassembly[index];
+
+	if (!skb) {
+		switch (type) {
+		case HCI_ACLDATA_PKT:
+			len = HCI_MAX_FRAME_SIZE;
+			hlen = HCI_ACL_HDR_SIZE;
+			break;
+		case HCI_EVENT_PKT:
+			len = HCI_MAX_EVENT_SIZE;
+			hlen = HCI_EVENT_HDR_SIZE;
+			break;
+		case HCI_SCODATA_PKT:
+			len = HCI_MAX_SCO_SIZE;
+			hlen = HCI_SCO_HDR_SIZE;
+			break;
+		}
+
+		skb = bt_skb_alloc(len, GFP_ATOMIC);
+		if (!skb)
+			return -ENOMEM;
+
+		scb = (void *) skb->cb;
+		scb->expect = hlen;
+		scb->pkt_type = type;
+
+		skb->dev = (void *) hdev;
+		hdev->reassembly[index] = skb;
+	}
+
+	while (count) {
+		scb = (void *) skb->cb;
+		len = min_t(uint, scb->expect, count);
+
+		memcpy(skb_put(skb, len), data, len);
+
+		count -= len;
+		data += len;
+		scb->expect -= len;
+		remain = count;
+
+		switch (type) {
+		case HCI_EVENT_PKT:
+			if (skb->len == HCI_EVENT_HDR_SIZE) {
+				struct hci_event_hdr *h = hci_event_hdr(skb);
+				scb->expect = h->plen;
+
+				if (skb_tailroom(skb) < scb->expect) {
+					kfree_skb(skb);
+					hdev->reassembly[index] = NULL;
+					return -ENOMEM;
+				}
+			}
+			break;
+
+		case HCI_ACLDATA_PKT:
+			if (skb->len  == HCI_ACL_HDR_SIZE) {
+				struct hci_acl_hdr *h = hci_acl_hdr(skb);
+				scb->expect = __le16_to_cpu(h->dlen);
+
+				if (skb_tailroom(skb) < scb->expect) {
+					kfree_skb(skb);
+					hdev->reassembly[index] = NULL;
+					return -ENOMEM;
+				}
+			}
+			break;
+
+		case HCI_SCODATA_PKT:
+			if (skb->len == HCI_SCO_HDR_SIZE) {
+				struct hci_sco_hdr *h = hci_sco_hdr(skb);
+				scb->expect = h->dlen;
+
+				if (skb_tailroom(skb) < scb->expect) {
+					kfree_skb(skb);
+					hdev->reassembly[index] = NULL;
+					return -ENOMEM;
+				}
+			}
+			break;
+		}
+
+		if (scb->expect == 0) {
+			/* Complete frame */
+			if(HCI_ACLDATA_PKT == type)
+				print_acl(skb,0);
+			if(HCI_SCODATA_PKT == type)
+				print_sco(skb,0);
+			if(HCI_EVENT_PKT == type)
+				print_event(skb);
+
+			bt_cb(skb)->pkt_type = type;
+			hci_recv_frame(skb);
+
+			hdev->reassembly[index] = NULL;
+			return remain;
+		}
+	}
+
+	return remain;
+}
+
+static int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count)
+{
+	int rem = 0;
+
+	if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT)
+		return -EILSEQ;
+
+	while (count) {
+		rem = hci_reassembly(hdev, type, data, count, type - 1);
+		if (rem < 0)
+			return rem;
+
+		data += (count - rem);
+		count = rem;
+	}
+
+	return rem;
+}
+
+void hci_hardware_error(void)
+{
+	struct sk_buff *rtk_skb_copy = NULL;
+	int len = 3;
+	uint8_t hardware_err_pkt[3] = {HCI_EVENT_PKT, 0x10, 0x00};
+
+	rtk_skb_copy = alloc_skb(len, GFP_ATOMIC);
+	if (!rtk_skb_copy) {
+		RTKBT_ERR("%s: Failed to allocate mem", __func__);
+		return;
+	}
+
+	memcpy(skb_put(rtk_skb_copy, len), hardware_err_pkt, len);
+	rtk_enqueue(rtk_skb_copy);
+
+	wake_up_interruptible(&btchr_read_wait);
+}
+
+static int btchr_open(struct inode *inode_p, struct file  *file_p)
+{
+	struct btusb_data *data;
+	struct hci_dev *hdev;
+
+	RTKBT_INFO("%s: BT usb char device is opening", __func__);
+	/* Not open unless wanna tracing log */
+	/* trace_printk("%s: open....\n", __func__); */
+
+	hdev = hci_dev_get(0);
+	if (!hdev) {
+		RTKBT_ERR("%s: Failed to get hci dev[NULL]", __func__);
+		return -1;
+	}
+	data = GET_DRV_DATA(hdev);
+
+	atomic_inc(&hdev->promisc);
+	/*
+	 * As bt device is not re-opened when hotplugged out, we cannot
+	 * trust on file's private data(may be null) when other file ops
+	 * are invoked.
+	 */
+	file_p->private_data = data;
+
+	mutex_lock(&btchr_mutex);
+	hci_dev_open(0);
+	mutex_unlock(&btchr_mutex);
+
+	return nonseekable_open(inode_p, file_p);
+}
+
+static int btchr_close(struct inode  *inode_p, struct file   *file_p)
+{
+	struct btusb_data *data;
+	struct hci_dev *hdev;
+
+	RTKBT_INFO("%s: BT usb char device is closing", __func__);
+	/* Not open unless wanna tracing log */
+	/* trace_printk("%s: close....\n", __func__); */
+
+	data = file_p->private_data;
+	file_p->private_data = NULL;
+
+#if CONFIG_BLUEDROID
+	/*
+	 * If the upper layer closes bt char interfaces, no reset
+	 * action required even bt device hotplugged out.
+	 */
+	bt_reset = 0;
+#endif
+
+	hdev = hci_dev_get(0);
+	if (hdev) {
+		atomic_set(&hdev->promisc, 0);
+		mutex_lock(&btchr_mutex);
+		hci_dev_close(0);
+		mutex_unlock(&btchr_mutex);
+	}
+
+	return 0;
+}
+
+static ssize_t btchr_read(struct file *file_p,
+		char __user *buf_p,
+		size_t count,
+		loff_t *pos_p)
+{
+	struct hci_dev *hdev;
+	struct sk_buff *skb;
+	ssize_t ret = 0;
+
+	RTKBT_DBG("%s: BT usb char device is reading", __func__);
+
+	while (count) {
+		hdev = hci_dev_get(0);
+		if (!hdev) {
+			/*
+			 * Note: Only when BT device hotplugged out, we wil get
+			 * into such situation. In order to keep the upper layer
+			 * stack alive (blocking the read), we should never return
+			 * EFAULT or break the loop.
+			 */
+			RTKBT_ERR("%s: Failed to get hci dev[Null]", __func__);
+		}
+
+		ret = wait_event_interruptible(btchr_read_wait, !is_queue_empty());
+		if (ret < 0) {
+			RTKBT_ERR("%s: wait event is signaled %d", __func__, ret);
+			break;
+		}
+
+		skb = rtk_dequeue_try(count);
+		if (skb) {
+			ret = usb_put_user(skb, buf_p, count);
+			if (ret < 0)
+				RTKBT_ERR("%s: Failed to put data to user space", __func__);
+			kfree_skb(skb);
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static ssize_t btchr_write(struct file *file_p,
+		const char __user *buf_p,
+		size_t count,
+		loff_t *pos_p)
+{
+	struct btusb_data *data = file_p->private_data;
+	struct hci_dev *hdev;
+	struct sk_buff *skb;
+
+	RTKBT_DBG("%s: BT usb char device is writing", __func__);
+
+	hdev = hci_dev_get(0);
+	if (!hdev) {
+		RTKBT_WARN("%s: Failed to get hci dev[Null]", __func__);
+		/*
+		 * Note: we bypass the data from the upper layer if bt device
+		 * is hotplugged out. Fortunatelly, H4 or H5 HCI stack does
+		 * NOT check btchr_write's return value. However, returning
+		 * count instead of EFAULT is preferable.
+		 */
+		/* return -EFAULT; */
+		return count;
+	}
+
+	/* Never trust on btusb_data, as bt device may be hotplugged out */
+	data = GET_DRV_DATA(hdev);
+	if (!data) {
+		RTKBT_WARN("%s: Failed to get bt usb driver data[Null]", __func__);
+		return count;
+	}
+
+	if (count > HCI_MAX_FRAME_SIZE)
+		return -EINVAL;
+
+	skb = bt_skb_alloc(count, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+	skb_reserve(skb, -1); // Add this line
+
+	if (copy_from_user(skb_put(skb, count), buf_p, count)) {
+		RTKBT_ERR("%s: Failed to get data from user space", __func__);
+		kfree_skb(skb);
+		return -EFAULT;
+	}
+
+	skb->dev = (void *)hdev;
+	bt_cb(skb)->pkt_type = *((__u8 *)skb->data);
+	skb_pull(skb, 1);
+	data->hdev->send(skb);
+
+	return count;
+}
+
+static unsigned int btchr_poll(struct file *file_p, poll_table *wait)
+{
+	struct btusb_data *data = file_p->private_data;
+	struct hci_dev *hdev;
+
+	RTKBT_DBG("%s: BT usb char device is polling", __func__);
+
+	hdev = hci_dev_get(0);
+	if (!hdev) {
+		RTKBT_ERR("%s: Failed to get hci dev[Null]", __func__);
+		mdelay(URB_CANCELING_DELAY_MS);
+		return POLLOUT | POLLWRNORM;
+	}
+
+	/* Never trust on btusb_data, as bt device may be hotplugged out */
+	data = GET_DRV_DATA(hdev);
+	if (!data) {
+		/*
+		 * When bt device is hotplugged out, btusb_data will
+		 * be freed in disconnect.
+		 */
+		RTKBT_ERR("%s: Failed to get bt usb driver data[Null]", __func__);
+		mdelay(URB_CANCELING_DELAY_MS);
+		return POLLOUT | POLLWRNORM;
+	}
+
+	if (!is_queue_empty())
+		return POLLIN | POLLRDNORM;
+
+	poll_wait(file_p, &btchr_read_wait, wait);
+
+	return POLLOUT | POLLWRNORM;
+}
+
+static struct file_operations bt_chrdev_ops  = {
+	open	:	btchr_open,
+	release	:	btchr_close,
+	read	:	btchr_read,
+	write	:	btchr_write,
+	poll	:	btchr_poll
+};
+
+static int btchr_init(void)
+{
+	int res = 0;
+	struct device *dev;
+
+	RTKBT_INFO("Register usb char device interface for BT driver");
+	/*
+	 * btchr mutex is used to sync between
+	 * 1) downloading patch and opening bt char driver
+	 * 2) the file operations of bt char driver
+	 */
+	mutex_init(&btchr_mutex);
+
+	skb_queue_head_init(&btchr_readq);
+	init_waitqueue_head(&btchr_read_wait);
+
+	bt_char_class = class_create(THIS_MODULE, BT_CHAR_DEVICE_NAME);
+	if (IS_ERR(bt_char_class)) {
+		RTKBT_ERR("Failed to create bt char class");
+		return PTR_ERR(bt_char_class);
+	}
+
+	res = alloc_chrdev_region(&bt_devid, 0, 1, BT_CHAR_DEVICE_NAME);
+	if (res < 0) {
+		RTKBT_ERR("Failed to allocate bt char device");
+		goto err_alloc;
+	}
+
+	dev = device_create(bt_char_class, NULL, bt_devid, NULL, BT_CHAR_DEVICE_NAME);
+	if (IS_ERR(dev)) {
+		RTKBT_ERR("Failed to create bt char device");
+		res = PTR_ERR(dev);
+		goto err_create;
+	}
+
+	cdev_init(&bt_char_dev, &bt_chrdev_ops);
+	res = cdev_add(&bt_char_dev, bt_devid, 1);
+	if (res < 0) {
+		RTKBT_ERR("Failed to add bt char device");
+		goto err_add;
+	}
+
+	return 0;
+
+err_add:
+	device_destroy(bt_char_class, bt_devid);
+err_create:
+	unregister_chrdev_region(bt_devid, 1);
+err_alloc:
+	class_destroy(bt_char_class);
+	return res;
+}
+
+static void btchr_exit(void)
+{
+	RTKBT_INFO("Unregister usb char device interface for BT driver");
+
+	device_destroy(bt_char_class, bt_devid);
+	cdev_del(&bt_char_dev);
+	unregister_chrdev_region(bt_devid, 1);
+	class_destroy(bt_char_class);
+
+	return;
+}
+#endif
+
+int send_hci_cmd(firmware_info *fw_info)
+{
+	int ret_val;
+
+	ret_val = usb_control_msg(
+		fw_info->udev, fw_info->pipe_out,
+		0, USB_TYPE_CLASS, 0, 0,
+		(void *)(fw_info->send_pkt),
+		fw_info->pkt_len, MSG_TO);
+
+	return ret_val;
+}
+
+int rcv_hci_evt(firmware_info *fw_info)
+{
+	int ret_len = 0, ret_val = 0;
+	int i;
+
+	while (1) {
+		for(i = 0; i < 5; i++) {
+		ret_val = usb_interrupt_msg(
+			fw_info->udev, fw_info->pipe_in,
+			(void *)(fw_info->rcv_pkt), PKT_LEN,
+			&ret_len, MSG_TO);
+			if (ret_val >= 0)
+				break;
+		}
+
+		if (ret_val < 0)
+			return ret_val;
+
+		if (CMD_CMP_EVT == fw_info->evt_hdr->evt) {
+			if (fw_info->cmd_hdr->opcode == fw_info->cmd_cmp->opcode)
+				return ret_len;
+		}
+	}
+}
+
+int set_bt_onoff(firmware_info *fw_info, uint8_t onoff)
+{
+	patch_info *patch_entry;
+	int ret_val;
+
+	RTKBT_INFO("%s: %s", __func__, onoff != 0 ? "on" : "off");
+
+	patch_entry = fw_info->patch_entry;
+	if (!patch_entry)
+		return -1;
+
+	fw_info->cmd_hdr->opcode = cpu_to_le16(BTOFF_OPCODE);
+	fw_info->cmd_hdr->plen = 1;
+	fw_info->pkt_len = CMD_HDR_LEN + 1;
+	fw_info->send_pkt[CMD_HDR_LEN] = onoff;
+
+	ret_val = send_hci_cmd(fw_info);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to send bt %s cmd, errno %d",
+				__func__, onoff != 0 ? "on" : "off", ret_val);
+		return ret_val;
+	}
+
+	ret_val = rcv_hci_evt(fw_info);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to receive bt %s event, errno %d",
+				__func__, onoff != 0 ? "on" : "off", ret_val);
+		return ret_val;
+	}
+
+	return ret_val;
+}
+
+static patch_info *get_fw_table_entry(struct usb_device* udev)
+{
+	patch_info *patch_entry = fw_patch_table;
+	uint16_t pid = le16_to_cpu(udev->descriptor.idProduct);
+	uint32_t entry_size = sizeof(fw_patch_table) / sizeof(fw_patch_table[0]);
+	uint32_t i;
+
+	RTKBT_INFO("%s: Product id = 0x%04x, fw table entry size %d", __func__, pid, entry_size);
+
+	for (i = 0; i < entry_size; i++, patch_entry++) {
+		if (pid == patch_entry->prod_id)
+			break;
+	}
+
+	if (i == entry_size) {
+		RTKBT_ERR("%s: No fw table entry found", __func__);
+		return NULL;
+	}
+
+	return patch_entry;
+}
+
+static struct rtk_epatch_entry *get_fw_patch_entry(struct rtk_epatch *epatch_info, uint16_t eco_ver)
+{
+	int patch_num = epatch_info->number_of_total_patch;
+	uint8_t *epatch_buf = (uint8_t *)epatch_info;
+	struct rtk_epatch_entry *p_entry = NULL;
+	int coex_date;
+	int coex_ver;
+	int i;
+
+	for (i = 0; i < patch_num; i++) {
+		if (*(uint16_t *)(epatch_buf + 14 + 2*i) == eco_ver + 1) {
+			p_entry = kzalloc(sizeof(*p_entry), GFP_KERNEL);
+			if (!p_entry) {
+				RTKBT_ERR("%s: Failed to allocate mem for patch entry", __func__);
+				return NULL;
+			}
+			p_entry->chip_id = eco_ver + 1;
+			p_entry->patch_length = *(uint16_t*)(epatch_buf + 14 + 2*patch_num + 2*i);
+			p_entry->start_offset = *(uint32_t*)(epatch_buf + 14 + 4*patch_num + 4*i);
+			p_entry->coex_version = *(uint32_t*)(epatch_buf + p_entry->start_offset + p_entry->patch_length - 12);
+			p_entry->svn_version = *(uint32_t*)(epatch_buf + p_entry->start_offset + p_entry->patch_length - 8);
+			p_entry->fw_version = *(uint32_t*)(epatch_buf + p_entry->start_offset + p_entry->patch_length - 4);
+
+			coex_date = ((p_entry->coex_version >> 16) & 0x7ff) + ((p_entry->coex_version >> 27) * 10000);
+			coex_ver = p_entry->coex_version & 0xffff;
+
+			RTKBT_INFO("%s: chip id %d, patch length 0x%04x, patch offset 0x%08x, "
+					"coex version 20%06d-0x%04x, svn version 0x%08x, fw version 0x%08x",
+					__func__, p_entry->chip_id, p_entry->patch_length, p_entry->start_offset,
+					coex_date, coex_ver, p_entry->svn_version, p_entry->fw_version);
+			break;
+		}
+	}
+
+	return p_entry;
+}
+
+/*
+ * check the return value
+ * 1: need to download fw patch
+ * 0: no need to download fw patch
+ * <0: failed to check lmp version
+ */
+int check_fw_version(firmware_info* fw_info)
+{
+	struct hci_rp_read_local_version *read_ver_rsp;
+	patch_info *patch_entry = NULL;
+	int ret_val = -1;
+
+	fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_OP_READ_LOCAL_VERSION);
+	fw_info->cmd_hdr->plen = 0;
+	fw_info->pkt_len = CMD_HDR_LEN;
+
+	ret_val = send_hci_cmd(fw_info);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d",
+				__func__, fw_info->cmd_hdr->opcode, ret_val);
+		return ret_val;
+	}
+
+	ret_val = rcv_hci_evt(fw_info);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to receive hci event, errno %d",
+				__func__, ret_val);
+		return ret_val;
+	}
+
+	patch_entry = fw_info->patch_entry;
+	read_ver_rsp = (struct hci_rp_read_local_version *)(fw_info->rsp_para);
+
+	RTKBT_INFO("%s: Controller lmp = 0x%04x, patch lmp = 0x%04x, default patch lmp = 0x%04x",
+			__func__, read_ver_rsp->lmp_subver, patch_entry->lmp_sub, patch_entry->lmp_sub_default);
+
+	if (read_ver_rsp->lmp_subver == patch_entry->lmp_sub_default) {
+		RTKBT_INFO("%s: Cold BT controller startup", __func__);
+		return 1;
+	} else if (read_ver_rsp->lmp_subver != patch_entry->lmp_sub) {
+		RTKBT_INFO("%s: Warm BT controller startup with updated lmp", __func__);
+		return 1;
+	} else {
+		RTKBT_INFO("%s: Warm BT controller startup with same lmp", __func__);
+		return 0;
+	}
+}
+
+int get_eversion(firmware_info* fw_info)
+{
+	struct rtk_eversion_evt *ever_evt;
+	int ret_val;
+
+	if (!fw_info)
+		return -ENODEV;
+
+	fw_info->cmd_hdr->opcode = cpu_to_le16(HCI_VENDOR_READ_RTK_ROM_VERISION);
+	fw_info->cmd_hdr->plen = 0;
+	fw_info->pkt_len = CMD_HDR_LEN;
+
+	ret_val = send_hci_cmd(fw_info);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to send hci cmd 0x%04x, errno %d",
+				__func__, fw_info->cmd_hdr->opcode, ret_val);
+		return ret_val;
+	}
+
+	ret_val = rcv_hci_evt(fw_info);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to receive hci event, errno %d",
+				__func__, ret_val);
+		return ret_val;
+	}
+
+	ever_evt = (struct rtk_eversion_evt *)(fw_info->rsp_para);
+
+	RTKBT_INFO("%s: status %d, eversion %d", __func__, ever_evt->status, ever_evt->version);
+
+	if (ever_evt->status)
+		fw_info->patch_entry->eversion = 0;
+	else
+		fw_info->patch_entry->eversion = ever_evt->version;
+
+	return ret_val;
+}
+
+int load_firmware(firmware_info *fw_info, uint8_t **buff)
+{
+	const struct firmware *fw, *cfg;
+	struct usb_device *udev;
+	patch_info *patch_entry;
+	char *config_name, *fw_name;
+	int fw_len = 0;
+	int ret_val;
+
+	int config_len = 0, buf_len = -1;
+	uint8_t *buf = *buff, *config_file_buf = NULL;
+	uint8_t *epatch_buf = NULL;
+
+	struct rtk_epatch *epatch_info = NULL;
+	uint8_t need_download_fw = 1;
+	struct rtk_extension_entry patch_lmp = {0};
+	struct rtk_epatch_entry *p_epatch_entry = NULL;
+	uint16_t lmp_version;
+	uint8_t use_mp_fw = 0;
+	RTKBT_DBG("%s: start", __func__);
+
+	udev = fw_info->udev;
+	patch_entry = fw_info->patch_entry;
+	lmp_version = patch_entry->lmp_sub_default;
+	config_name = patch_entry->config_name;
+	fw_name = patch_entry->patch_name;
+
+	RTKBT_INFO("%s: Default lmp version = 0x%04x, config file name[%s], "
+			"fw file name[%s]", __func__, lmp_version,config_name, fw_name);
+
+/*	ret_val = request_firmware(&cfg, "mp_test", &udev->dev);
+	if (ret_val > 0)
+		config_file_buf = kzalloc(cfg->size, GFP_KERNEL);
+		if (config_file_buf) {
+			memcpy(config_file_buf, cfg->data, cfg->size);
+			use_mp_fw = *config_file_buf;
+			if (1 == use_mp_fw){
+				fw_name = patch_entry->mp_patch_name;
+				RTKBT_WARN("%s: use_mp_fw = %04d, fw file name[%s]", __func__, use_mp_fw,  fw_name);
+			}
+			kfree(config_file_buf);
+			release_firmware(cfg);
+		}
+*/
+	ret_val = request_firmware(&cfg, config_name, &udev->dev);
+	if (ret_val < 0)
+		config_len = 0;
+	else {
+		config_file_buf = kzalloc(cfg->size, GFP_KERNEL);
+		if (!config_file_buf)
+			return -ENOMEM;
+		memcpy(config_file_buf, cfg->data, cfg->size);
+		config_len = cfg->size;
+		release_firmware(cfg);
+	}
+
+	ret_val = request_firmware(&fw, fw_name, &udev->dev);
+	if (ret_val < 0)
+		goto fw_fail;
+	else {
+		epatch_buf = kzalloc(fw->size, GFP_KERNEL);
+		if (!epatch_buf) {
+			release_firmware(fw);
+			goto fw_fail;
+		}
+		memcpy(epatch_buf, fw->data, fw->size);
+		fw_len = fw->size;
+		buf_len = fw_len + config_len;
+		release_firmware(fw);
+	}
+
+	if (lmp_version == ROM_LMP_8723a) {
+		RTKBT_DBG("%s: 8723a -> use old style patch", __func__);
+		if (!memcmp(epatch_buf, RTK_EPATCH_SIGNATURE, 8)) {
+			RTKBT_ERR("%s: 8723a check signature error", __func__);
+			need_download_fw = 0;
+		} else {
+			if (!(buf = kzalloc(buf_len, GFP_KERNEL))) {
+				RTKBT_ERR("%s: Failed to allocate mem for fw&config", __func__);
+				buf_len = -1;
+			} else {
+				RTKBT_DBG("%s: 8723a -> fw copy directly", __func__);
+				memcpy(buf, epatch_buf, buf_len);
+				patch_entry->lmp_sub = *(uint16_t *)(buf + buf_len - config_len - 4);
+				RTKBT_DBG("%s: Config lmp version = 0x%04x", __func__,
+						patch_entry->lmp_sub);
+				kfree(epatch_buf);
+				epatch_buf = NULL;
+				if (config_len)
+					memcpy(buf + buf_len - config_len, config_file_buf, config_len);
+			}
+		}
+	} else {
+		RTKBT_DBG("%s: Not 8723a -> use new style patch", __func__);
+		ret_val = get_eversion(fw_info);
+		if (ret_val < 0) {
+			RTKBT_ERR("%s: Failed to get eversion, errno %d", __func__, ret_val);
+			goto fw_fail;
+		}
+		RTKBT_DBG("%s: Get eversion =%d", __func__, patch_entry->eversion);
+		if (memcmp(epatch_buf + buf_len - config_len - 4 , EXTENSION_SECTION_SIGNATURE, 4)) {
+			RTKBT_ERR("%s: Failed to check extension section signature", __func__);
+			need_download_fw = 0;
+		} else {
+			uint8_t *temp;
+			temp = epatch_buf+buf_len-config_len - 5;
+			do {
+				if (*temp == 0x00) {
+					patch_lmp.opcode = *temp;
+					patch_lmp.length = *(temp-1);
+					if ((patch_lmp.data = kzalloc(patch_lmp.length, GFP_KERNEL))) {
+						int k;
+						for (k = 0; k < patch_lmp.length; k++) {
+							*(patch_lmp.data+k) = *(temp-2-k);
+							RTKBT_DBG("data = 0x%x", *(patch_lmp.data+k));
+						}
+					}
+					RTKBT_DBG("%s: opcode = 0x%x, length = 0x%x, data = 0x%x", __func__,
+							patch_lmp.opcode, patch_lmp.length, *(patch_lmp.data));
+					break;
+				}
+				temp -= *(temp-1) + 2;
+			} while (*temp != 0xFF);
+
+			if (lmp_version != project_id[*(patch_lmp.data)]) {
+				RTKBT_ERR("%s: Default lmp_version 0x%04x, project_id 0x%04x "
+						"-> not match", __func__, lmp_version, project_id[*(patch_lmp.data)]);
+				if (patch_lmp.data)
+					kfree(patch_lmp.data);
+				need_download_fw = 0;
+			} else {
+				RTKBT_INFO("%s: Default lmp_version 0x%04x, project_id 0x%04x "
+						"-> match", __func__, lmp_version, project_id[*(patch_lmp.data)]);
+				if (patch_lmp.data)
+					kfree(patch_lmp.data);
+				if (memcmp(epatch_buf, RTK_EPATCH_SIGNATURE, 8)) {
+					RTKBT_ERR("%s: Check signature error", __func__);
+					need_download_fw = 0;
+				} else {
+					epatch_info = (struct rtk_epatch*)epatch_buf;
+					patch_entry->lmp_sub = (uint16_t)epatch_info->fw_version;
+
+					RTKBT_DBG("%s: lmp version 0x%04x, fw_version 0x%x, "
+							"number_of_total_patch %d", __func__,
+							patch_entry->lmp_sub, epatch_info->fw_version,
+							epatch_info->number_of_total_patch);
+
+					/* Get right epatch entry */
+					p_epatch_entry = get_fw_patch_entry(epatch_info, patch_entry->eversion);
+					if (p_epatch_entry == NULL) {
+						RTKBT_WARN("%s: Failed to get fw patch entry", __func__);
+						ret_val = -1;
+						goto fw_fail ;
+					}
+
+					buf_len = p_epatch_entry->patch_length + config_len;
+					RTKBT_DBG("buf_len = 0x%x", buf_len);
+
+					if (!(buf = kzalloc(buf_len, GFP_KERNEL))) {
+						RTKBT_ERR("%s: Can't alloc memory for  fw&config", __func__);
+						buf_len = -1;
+					} else {
+						memcpy(buf, &epatch_buf[p_epatch_entry->start_offset], p_epatch_entry->patch_length);
+						memcpy(&buf[p_epatch_entry->patch_length-4], &epatch_info->fw_version, 4);
+						kfree(p_epatch_entry);
+					}
+					kfree(epatch_buf);
+					epatch_buf = NULL;
+
+					if (config_len)
+						memcpy(&buf[buf_len - config_len], config_file_buf, config_len);
+				}
+			}
+		}
+	}
+
+	if (config_file_buf)
+		kfree(config_file_buf);
+
+	RTKBT_INFO("%s: fw%s exists, config file%s exists", __func__,
+			(buf_len > 0) ? "" : " not", (config_len > 0) ? "":" not");
+
+	if (buf && buf_len > 0 && need_download_fw)
+		*buff = buf;
+
+	RTKBT_DBG("%s: done", __func__);
+
+	return buf_len;
+
+fw_fail:
+	if (config_file_buf)
+		kfree(config_file_buf);
+	return ret_val;
+}
+
+int get_firmware(firmware_info *fw_info, int cached)
+{
+	patch_info *patch_entry = fw_info->patch_entry;
+
+	RTKBT_INFO("%s: start, cached %d,patch_entry->fw_len= %d", __func__, cached,patch_entry->fw_len);
+
+	if (cached > 0) {
+		if (patch_entry->fw_len > 0) {
+			fw_info->fw_data = kzalloc(patch_entry->fw_len, GFP_KERNEL);
+			if (!fw_info->fw_data)
+				return -ENOMEM;
+			memcpy(fw_info->fw_data, patch_entry->fw_cache, patch_entry->fw_len);
+			fw_info->fw_len = patch_entry->fw_len;
+		} else {
+			fw_info->fw_len = load_firmware(fw_info, &fw_info->fw_data);
+			if (fw_info->fw_len <= 0)
+				return -1;
+		}
+	} else {
+		fw_info->fw_len = load_firmware(fw_info, &fw_info->fw_data);
+		if (fw_info->fw_len <= 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * Open the log message only if in debugging,
+ * or it will decelerate download procedure.
+ */
+int download_data(firmware_info *fw_info)
+{
+	download_cp *cmd_para;
+	download_rp *evt_para;
+	uint8_t *pcur;
+	int pkt_len, frag_num, frag_len;
+	int i, ret_val;
+	int ncmd = 1, step = 1;
+
+	RTKBT_DBG("%s: start", __func__);
+
+	cmd_para = (download_cp *)fw_info->req_para;
+	evt_para = (download_rp *)fw_info->rsp_para;
+	pcur = fw_info->fw_data;
+	pkt_len = CMD_HDR_LEN + sizeof(download_cp);
+	frag_num = fw_info->fw_len / PATCH_SEG_MAX + 1;
+	frag_len = PATCH_SEG_MAX;
+
+	for (i = 0; i < frag_num; i++) {
+		cmd_para->index = i;
+		if (i == (frag_num - 1)) {
+			cmd_para->index |= DATA_END;
+			frag_len = fw_info->fw_len % PATCH_SEG_MAX;
+			pkt_len -= (PATCH_SEG_MAX - frag_len);
+		}
+		fw_info->cmd_hdr->opcode = cpu_to_le16(DOWNLOAD_OPCODE);
+		fw_info->cmd_hdr->plen = sizeof(uint8_t) + frag_len;
+		fw_info->pkt_len = pkt_len;
+		memcpy(cmd_para->data, pcur, frag_len);
+
+		if (step > 0) {
+			ret_val = send_hci_cmd(fw_info);
+			if (ret_val < 0) {
+				RTKBT_DBG("%s: Failed to send frag num %d", __func__, cmd_para->index);
+				return ret_val;
+			} else
+				RTKBT_DBG("%s: Send frag num %d", __func__, cmd_para->index);
+
+			if (--step > 0 && i < frag_num - 1) {
+				RTKBT_DBG("%s: Continue to send frag num %d", __func__, cmd_para->index + 1);
+				pcur += PATCH_SEG_MAX;
+				continue;
+			}
+		}
+
+		while (ncmd > 0) {
+			ret_val = rcv_hci_evt(fw_info);
+			if (ret_val < 0) {
+				RTKBT_ERR("%s: rcv_hci_evt err %d", __func__, ret_val);
+				return ret_val;
+			} else {
+				RTKBT_DBG("%s: Receive acked frag num %d", __func__, evt_para->index);
+				ncmd--;
+			}
+
+			if (0 != evt_para->status) {
+				RTKBT_ERR("%s: Receive acked frag num %d, err status %d",
+						__func__, ret_val, evt_para->status);
+				return -1;
+			}
+
+			if ((evt_para->index & DATA_END) || (evt_para->index == frag_num - 1)) {
+				RTKBT_DBG("%s: Receive last acked index %d", __func__, evt_para->index);
+				goto end;
+			}
+		}
+
+		ncmd = step = fw_info->cmd_cmp->ncmd;
+		pcur += PATCH_SEG_MAX;
+		RTKBT_DBG("%s: HCI command packet num %d", __func__, ncmd);
+	}
+
+	/*
+	 * It is tricky that Host cannot receive DATA_END index from BT
+	 * controller, at least for 8723au. We are doomed if failed.
+	 */
+#if 0
+	/* Continue to receive the responsed events until last index occurs */
+	if (i == frag_num) {
+		RTKBT_DBG("%s: total frag count %d", __func__, frag_num);
+		while (!(evt_para->index & DATA_END)) {
+			ret_val = rcv_hci_evt(fw_info);
+			if (ret_val < 0) {
+				RTKBT_ERR("%s: rcv_hci_evt err %d", __func__, ret_val);
+				return ret_val;
+			}
+			if (0 != evt_para->status)
+				return -1;
+			RTKBT_DBG("%s: continue to receive acked frag num %d", __func__, evt_para->index);
+		}
+	}
+#endif
+end:
+	RTKBT_INFO("%s: done, sent %d frag pkts, received %d frag events",
+			__func__, cmd_para->index, evt_para->index);
+	return fw_info->fw_len;
+}
+
+int download_patch(firmware_info *fw_info, int cached)
+{
+	int ret_val = 0;
+
+	RTKBT_DBG("%s: Download fw patch start, cached %d", __func__, cached);
+
+	if (!fw_info || !fw_info->patch_entry) {
+		RTKBT_ERR("%s: No patch entry exists(fw_info %p)", __func__, fw_info);
+		ret_val = -1;
+		goto end;
+	}
+
+	/*
+	 * step1: get local firmware if existed
+	 * step2: check firmware version
+	 * step3: download firmware if updated
+	 */
+	ret_val = get_firmware(fw_info, cached);
+	if (ret_val < 0) {
+		RTKBT_ERR("%s: Failed to get firmware", __func__);
+		goto end;
+	}
+
+	ret_val = check_fw_version(fw_info);
+	if (ret_val > 0) {
+		ret_val = download_data(fw_info);
+		if (ret_val > 0)
+			RTKBT_DBG("%s: Download fw patch done, fw len %d", __func__, ret_val);
+	}
+	/* Free fw data after download finished */
+	kfree(fw_info->fw_data);
+	fw_info->fw_data = NULL;
+
+end:
+	return ret_val;
+}
+
+firmware_info *firmware_info_init(struct usb_interface *intf)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	firmware_info *fw_info;
+
+	RTKBT_DBG("%s: start", __func__);
+
+	fw_info = kzalloc(sizeof(*fw_info), GFP_KERNEL);
+	if (!fw_info)
+		return NULL;
+
+	fw_info->send_pkt = kzalloc(PKT_LEN, GFP_KERNEL);
+	if (!fw_info->send_pkt) {
+		kfree(fw_info);
+		return NULL;
+	}
+
+	fw_info->rcv_pkt = kzalloc(PKT_LEN, GFP_KERNEL);
+	if (!fw_info->rcv_pkt) {
+		kfree(fw_info->send_pkt);
+		kfree(fw_info);
+		return NULL;
+	}
+
+	fw_info->patch_entry = get_fw_table_entry(udev);
+	if (!fw_info->patch_entry) {
+		kfree(fw_info->rcv_pkt);
+		kfree(fw_info->send_pkt);
+		kfree(fw_info);
+		return NULL;
+	}
+
+	fw_info->intf = intf;
+	fw_info->udev = udev;
+	fw_info->pipe_in = usb_rcvintpipe(fw_info->udev, INTR_EP);
+	fw_info->pipe_out = usb_sndctrlpipe(fw_info->udev, CTRL_EP);
+	fw_info->cmd_hdr = (struct hci_command_hdr *)(fw_info->send_pkt);
+	fw_info->evt_hdr = (struct hci_event_hdr *)(fw_info->rcv_pkt);
+	fw_info->cmd_cmp = (struct hci_ev_cmd_complete *)(fw_info->rcv_pkt + EVT_HDR_LEN);
+	fw_info->req_para = fw_info->send_pkt + CMD_HDR_LEN;
+	fw_info->rsp_para = fw_info->rcv_pkt + EVT_HDR_LEN + CMD_CMP_LEN;
+
+#if BTUSB_RPM
+	RTKBT_INFO("%s: Auto suspend is enabled", __func__);
+	usb_enable_autosuspend(udev);
+	pm_runtime_set_autosuspend_delay(&(udev->dev), 2000);
+#else
+	RTKBT_INFO("%s: Auto suspend is disabled", __func__);
+	usb_disable_autosuspend(udev);
+#endif
+
+#if BTUSB_WAKEUP_HOST
+	device_wakeup_enable(&udev->dev);
+#endif
+
+	return fw_info;
+}
+
+void firmware_info_destroy(struct usb_interface *intf)
+{
+	firmware_info *fw_info;
+	struct usb_device *udev;
+	struct btusb_data *data;
+
+	udev = interface_to_usbdev(intf);
+	data = usb_get_intfdata(intf);
+
+	fw_info = data->fw_info;
+	if (!fw_info)
+		return;
+
+#if BTUSB_RPM
+	usb_disable_autosuspend(udev);
+#endif
+
+	/*
+	 * In order to reclaim fw data mem, we free fw_data immediately
+	 * after download patch finished instead of here.
+	 */
+	kfree(fw_info->rcv_pkt);
+	kfree(fw_info->send_pkt);
+	kfree(fw_info);
+}
+
+static struct usb_driver btusb_driver;
+
+static struct usb_device_id btusb_table[] = {
+	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
+					 USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor = 0x0bda,
+	  .bInterfaceClass = 0xe0,
+	  .bInterfaceSubClass = 0x01,
+	  .bInterfaceProtocol = 0x01 },
+
+	{ .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
+					 USB_DEVICE_ID_MATCH_INT_INFO,
+	  .idVendor = 0x13d3,
+	  .bInterfaceClass = 0xe0,
+	  .bInterfaceSubClass = 0x01,
+	  .bInterfaceProtocol = 0x01 },
+
+	{ }
+};
+
+MODULE_DEVICE_TABLE(usb, btusb_table);
+
+static int inc_tx(struct btusb_data *data)
+{
+	unsigned long flags;
+	int rv;
+
+	spin_lock_irqsave(&data->txlock, flags);
+	rv = test_bit(BTUSB_SUSPENDING, &data->flags);
+	if (!rv)
+		data->tx_in_flight++;
+	spin_unlock_irqrestore(&data->txlock, flags);
+
+	return rv;
+}
+
+void check_sco_event(struct urb *urb)
+{
+	u8* opcode = (u8*)(urb->transfer_buffer);
+	u8 status;
+	static uint16_t sco_handle = 0;
+	uint16_t handle;
+	struct hci_dev *hdev = urb->context;
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+
+	switch (*opcode) {
+	case HCI_EV_SYNC_CONN_COMPLETE:
+		RTKBT_INFO("%s: HCI_EV_SYNC_CONN_COMPLETE(0x%02x)", __func__, *opcode);
+		status = *(opcode + 2);
+		sco_handle = *(opcode + 3) | *(opcode + 4) << 8;
+		if (status == 0) {
+			hdev->conn_hash.sco_num++;
+			schedule_work(&data->work);
+		}
+		break;
+	case HCI_EV_DISCONN_COMPLETE:
+		RTKBT_INFO("%s: HCI_EV_DISCONN_COMPLETE(0x%02x)", __func__, *opcode);
+		status = *(opcode + 2);
+		handle = *(opcode + 3) | *(opcode + 4) << 8;
+		if (status == 0 && sco_handle == handle) {
+			hdev->conn_hash.sco_num--;
+			schedule_work(&data->work);
+		}
+		break;
+	default:
+		RTKBT_DBG("%s: event 0x%02x", __func__, *opcode);
+		break;
+	}
+}
+
+static void btusb_intr_complete(struct urb *urb)
+{
+	struct hci_dev *hdev = urb->context;
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	int err;
+
+	RTKBT_DBG("%s: urb %p status %d count %d ", __func__,
+			urb, urb->status, urb->actual_length);
+
+	check_sco_event(urb);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return;
+
+	
+	if (urb->status == 0) {
+		hdev->stat.byte_rx += urb->actual_length;
+
+		if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
+						urb->transfer_buffer,
+						urb->actual_length) < 0) {
+			RTKBT_ERR("%s: Corrupted event packet", __func__);
+			hdev->stat.err_rx++;
+		}
+	}
+	/* Avoid suspend failed when usb_kill_urb */
+	else if(urb->status == -ENOENT)	{
+		return;
+	}
+
+
+	if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
+		return;
+
+	usb_mark_last_busy(data->udev);
+	usb_anchor_urb(urb, &data->intr_anchor);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err < 0) {
+		/* EPERM: urb is being killed;
+		 * ENODEV: device got disconnected */
+		if (err != -EPERM && err != -ENODEV)
+			RTKBT_ERR("%s: Failed to re-submit urb %p, err %d",
+					__func__, urb, err);
+		usb_unanchor_urb(urb);
+	}
+}
+
+static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	struct urb *urb;
+	unsigned char *buf;
+	unsigned int pipe;
+	int err, size;
+
+	if (!data->intr_ep)
+		return -ENODEV;
+
+	urb = usb_alloc_urb(0, mem_flags);
+	if (!urb)
+		return -ENOMEM;
+
+	size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+
+	buf = kmalloc(size, mem_flags);
+	if (!buf) {
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	RTKBT_DBG("%s: mMaxPacketSize %d, bEndpointAddress 0x%02x",
+			__func__, size, data->intr_ep->bEndpointAddress);
+
+	pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
+
+	usb_fill_int_urb(urb, data->udev, pipe, buf, size,
+						btusb_intr_complete, hdev,
+						data->intr_ep->bInterval);
+
+	urb->transfer_flags |= URB_FREE_BUFFER;
+
+	usb_anchor_urb(urb, &data->intr_anchor);
+
+	err = usb_submit_urb(urb, mem_flags);
+	if (err < 0) {
+		RTKBT_ERR("%s: Failed to submit urb %p, err %d",
+				__func__, urb, err);
+		usb_unanchor_urb(urb);
+	}
+
+	usb_free_urb(urb);
+
+	return err;
+}
+
+static void btusb_bulk_complete(struct urb *urb)
+{
+	struct hci_dev *hdev = urb->context;
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	int err;
+
+	RTKBT_DBG("%s: urb %p status %d count %d",
+			__func__, urb, urb->status, urb->actual_length);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return;
+
+	if (urb->status == 0) {
+		hdev->stat.byte_rx += urb->actual_length;
+
+		if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
+						urb->transfer_buffer,
+						urb->actual_length) < 0) {
+			RTKBT_ERR("%s: Corrupted ACL packet", __func__);
+			hdev->stat.err_rx++;
+		}
+	}
+	/* Avoid suspend failed when usb_kill_urb */
+	else if(urb->status == -ENOENT)	{
+		return;
+	}
+
+
+	if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
+		return;
+
+	usb_anchor_urb(urb, &data->bulk_anchor);
+	usb_mark_last_busy(data->udev);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err < 0) {
+		/* -EPERM: urb is being killed;
+		 * -ENODEV: device got disconnected */
+		if (err != -EPERM && err != -ENODEV)
+			RTKBT_ERR("btusb_bulk_complete %s urb %p failed to resubmit (%d)",
+						hdev->name, urb, -err);
+		usb_unanchor_urb(urb);
+	}
+}
+
+static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	struct urb *urb;
+	unsigned char *buf;
+	unsigned int pipe;
+	int err, size = HCI_MAX_FRAME_SIZE;
+
+	RTKBT_DBG("%s: hdev name %s", __func__, hdev->name);
+
+	if (!data->bulk_rx_ep)
+		return -ENODEV;
+
+	urb = usb_alloc_urb(0, mem_flags);
+	if (!urb)
+		return -ENOMEM;
+
+	buf = kmalloc(size, mem_flags);
+	if (!buf) {
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
+
+	usb_fill_bulk_urb(urb, data->udev, pipe,
+					buf, size, btusb_bulk_complete, hdev);
+
+	urb->transfer_flags |= URB_FREE_BUFFER;
+
+	usb_mark_last_busy(data->udev);
+	usb_anchor_urb(urb, &data->bulk_anchor);
+
+	err = usb_submit_urb(urb, mem_flags);
+	if (err < 0) {
+		RTKBT_ERR("%s: Failed to submit urb %p, err %d", __func__, urb, err);
+		usb_unanchor_urb(urb);
+	}
+
+	usb_free_urb(urb);
+
+	return err;
+}
+
+static void btusb_isoc_complete(struct urb *urb)
+{
+	struct hci_dev *hdev = urb->context;
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	int i, err;
+
+
+	RTKBT_DBG("%s: urb %p status %d count %d",
+			__func__, urb, urb->status, urb->actual_length);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return;
+
+	if (urb->status == 0) {
+		for (i = 0; i < urb->number_of_packets; i++) {
+			unsigned int offset = urb->iso_frame_desc[i].offset;
+			unsigned int length = urb->iso_frame_desc[i].actual_length;
+
+			if (urb->iso_frame_desc[i].status)
+				continue;
+
+			hdev->stat.byte_rx += length;
+
+			if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
+						urb->transfer_buffer + offset,
+								length) < 0) {
+				RTKBT_ERR("%s: Corrupted SCO packet", __func__);
+				hdev->stat.err_rx++;
+			}
+		}
+	}
+	/* Avoid suspend failed when usb_kill_urb */
+	else if(urb->status == -ENOENT)	{
+		return;
+	}
+
+
+	if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
+		return;
+
+	usb_anchor_urb(urb, &data->isoc_anchor);
+	i = 0;
+retry:
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err < 0) {
+		/* -EPERM: urb is being killed;
+		 * -ENODEV: device got disconnected */
+		if (err != -EPERM && err != -ENODEV)
+			RTKBT_ERR("%s: Failed to re-sumbit urb %p, retry %d, err %d",
+					__func__, urb, i, err);
+		if (i < 10) {
+			i++;
+			mdelay(1);
+			goto retry;
+		}
+
+		usb_unanchor_urb(urb);
+	}
+}
+
+static inline void fill_isoc_descriptor(struct urb *urb, int len, int mtu)
+{
+	int i, offset = 0;
+
+	RTKBT_DBG("%s: len %d mtu %d", __func__, len, mtu);
+
+	for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
+					i++, offset += mtu, len -= mtu) {
+		urb->iso_frame_desc[i].offset = offset;
+		urb->iso_frame_desc[i].length = mtu;
+	}
+
+	if (len && i < BTUSB_MAX_ISOC_FRAMES) {
+		urb->iso_frame_desc[i].offset = offset;
+		urb->iso_frame_desc[i].length = len;
+		i++;
+	}
+
+	urb->number_of_packets = i;
+}
+
+static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	struct urb *urb;
+	unsigned char *buf;
+	unsigned int pipe;
+	int err, size;
+
+	if (!data->isoc_rx_ep)
+		return -ENODEV;
+
+	urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
+	if (!urb)
+		return -ENOMEM;
+
+	size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
+						BTUSB_MAX_ISOC_FRAMES;
+
+	buf = kmalloc(size, mem_flags);
+	if (!buf) {
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
+
+	urb->dev      = data->udev;
+	urb->pipe     = pipe;
+	urb->context  = hdev;
+	urb->complete = btusb_isoc_complete;
+	urb->interval = data->isoc_rx_ep->bInterval;
+
+	urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
+	urb->transfer_buffer = buf;
+	urb->transfer_buffer_length = size;
+
+	fill_isoc_descriptor(urb, size,
+			le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
+
+	usb_anchor_urb(urb, &data->isoc_anchor);
+
+	err = usb_submit_urb(urb, mem_flags);
+	if (err < 0) {
+		RTKBT_ERR("%s: Failed to submit urb %p, err %d", __func__, urb, err);
+		usb_unanchor_urb(urb);
+	}
+
+	usb_free_urb(urb);
+
+	return err;
+}
+
+static void btusb_tx_complete(struct urb *urb)
+{
+	struct sk_buff *skb = urb->context;
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		goto done;
+
+	if (!urb->status)
+		hdev->stat.byte_tx += urb->transfer_buffer_length;
+	else
+		hdev->stat.err_tx++;
+
+done:
+	spin_lock(&data->txlock);
+	data->tx_in_flight--;
+	spin_unlock(&data->txlock);
+
+	kfree(urb->setup_packet);
+
+	kfree_skb(skb);
+}
+
+static void btusb_isoc_tx_complete(struct urb *urb)
+{
+	struct sk_buff *skb = urb->context;
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+
+	RTKBT_DBG("%s: urb %p status %d count %d",
+			__func__, urb, urb->status, urb->actual_length);
+
+	if (skb && hdev) {
+		if (!test_bit(HCI_RUNNING, &hdev->flags))
+			goto done;
+
+		if (!urb->status)
+			hdev->stat.byte_tx += urb->transfer_buffer_length;
+		else
+			hdev->stat.err_tx++;
+	} else
+		RTKBT_ERR("%s: skb 0x%p hdev 0x%p", __func__, skb, hdev);
+
+done:
+	kfree(urb->setup_packet);
+
+	kfree_skb(skb);
+}
+
+static int btusb_open(struct hci_dev *hdev)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	int err = 0;
+
+	RTKBT_INFO("%s: Start, PM usage count %d", __func__,
+			atomic_read(&(data->intf->pm_usage_cnt)));
+
+	err = usb_autopm_get_interface(data->intf);
+	if (err < 0)
+		return err;
+
+	data->intf->needs_remote_wakeup = 1;
+
+	err = download_patch(data->fw_info, 1);
+	if (err < 0) goto failed;
+
+	if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+		goto done;
+
+	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
+		goto done;
+
+	err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
+	if (err < 0)
+		goto failed;
+
+	err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+	if (err < 0) {
+		mdelay(URB_CANCELING_DELAY_MS);
+		usb_kill_anchored_urbs(&data->intr_anchor);
+		goto failed;
+	}
+
+	set_bit(BTUSB_BULK_RUNNING, &data->flags);
+	btusb_submit_bulk_urb(hdev, GFP_KERNEL);
+
+done:
+	usb_autopm_put_interface(data->intf);
+	RTKBT_INFO("%s: End, PM usage count %d", __func__,
+			atomic_read(&(data->intf->pm_usage_cnt)));
+	return 0;
+
+failed:
+	clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+	clear_bit(HCI_RUNNING, &hdev->flags);
+	usb_autopm_put_interface(data->intf);
+	RTKBT_ERR("%s: Failed, PM usage count %d", __func__,
+			atomic_read(&(data->intf->pm_usage_cnt)));
+	return err;
+}
+
+static void btusb_stop_traffic(struct btusb_data *data)
+{
+	mdelay(URB_CANCELING_DELAY_MS);
+	usb_kill_anchored_urbs(&data->intr_anchor);
+	usb_kill_anchored_urbs(&data->bulk_anchor);
+	usb_kill_anchored_urbs(&data->isoc_anchor);
+}
+
+static int btusb_close(struct hci_dev *hdev)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	int i, err;
+
+	RTKBT_INFO("%s: hci running %lu", __func__, hdev->flags & HCI_RUNNING);
+
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	for (i = 0; i < NUM_REASSEMBLY; i++) {
+		if (hdev->reassembly[i]) {
+			RTKBT_DBG("%s: free ressembly[%d]", __func__, i);
+			kfree_skb(hdev->reassembly[i]);
+			hdev->reassembly[i] = NULL;
+		}
+	}
+
+	cancel_work_sync(&data->work);
+	cancel_work_sync(&data->waker);
+
+	clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+	clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+	clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+
+	btusb_stop_traffic(data);
+	err = usb_autopm_get_interface(data->intf);
+	if (err < 0)
+		goto failed;
+
+	data->intf->needs_remote_wakeup = 0;
+	usb_autopm_put_interface(data->intf);
+
+failed:
+	mdelay(URB_CANCELING_DELAY_MS);
+	usb_scuttle_anchored_urbs(&data->deferred);
+	return 0;
+}
+
+static int btusb_flush(struct hci_dev *hdev)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+
+	RTKBT_DBG("%s", __func__);
+
+	mdelay(URB_CANCELING_DELAY_MS);
+	usb_kill_anchored_urbs(&data->tx_anchor);
+
+	return 0;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
+static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+{
+#else
+static int btusb_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+#endif
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	struct usb_ctrlrequest *dr;
+	struct urb *urb;
+	unsigned int pipe;
+	int err;
+	int retries = 0;
+
+	RTKBT_DBG("%s: hdev %p, btusb data %p, pkt type %d",
+			__func__, hdev, data, bt_cb(skb)->pkt_type);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return -EBUSY;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 13, 0)
+	skb->dev = (void *)hdev;
+#endif
+
+	switch (bt_cb(skb)->pkt_type) {
+	case HCI_COMMAND_PKT:
+		print_command(skb);
+		urb = usb_alloc_urb(0, GFP_ATOMIC);
+		if (!urb)
+			return -ENOMEM;
+
+		dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
+		if (!dr) {
+			usb_free_urb(urb);
+			return -ENOMEM;
+		}
+
+		dr->bRequestType = data->cmdreq_type;
+		dr->bRequest     = 0;
+		dr->wIndex       = 0;
+		dr->wValue       = 0;
+		dr->wLength      = __cpu_to_le16(skb->len);
+
+		pipe = usb_sndctrlpipe(data->udev, 0x00);
+
+		usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
+				skb->data, skb->len, btusb_tx_complete, skb);
+
+		hdev->stat.cmd_tx++;
+		break;
+
+	case HCI_ACLDATA_PKT:
+		print_acl(skb, 1);
+		if (!data->bulk_tx_ep)
+			return -ENODEV;
+
+		urb = usb_alloc_urb(0, GFP_ATOMIC);
+		if (!urb)
+			return -ENOMEM;
+
+		pipe = usb_sndbulkpipe(data->udev,
+					data->bulk_tx_ep->bEndpointAddress);
+
+		usb_fill_bulk_urb(urb, data->udev, pipe,
+				skb->data, skb->len, btusb_tx_complete, skb);
+
+		hdev->stat.acl_tx++;
+		break;
+
+	case HCI_SCODATA_PKT:
+		print_sco(skb, 1);
+		if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1) {
+			kfree(skb);
+			return -ENODEV;
+		}
+
+		urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
+		if (!urb) {
+			RTKBT_ERR("%s: Failed to allocate mem for sco pkts", __func__);
+			kfree(skb);
+			return -ENOMEM;
+		}
+
+		pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
+
+		usb_fill_int_urb(urb, data->udev, pipe,
+				skb->data, skb->len, btusb_isoc_tx_complete,
+				skb, data->isoc_tx_ep->bInterval);
+
+		urb->transfer_flags  = URB_ISO_ASAP;
+
+		fill_isoc_descriptor(urb, skb->len,
+				le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
+
+		hdev->stat.sco_tx++;
+		goto skip_waking;
+
+	default:
+		return -EILSEQ;
+	}
+
+	err = inc_tx(data);
+	if (err) {
+		usb_anchor_urb(urb, &data->deferred);
+		schedule_work(&data->waker);
+		err = 0;
+		goto done;
+	}
+
+skip_waking:
+	usb_anchor_urb(urb, &data->tx_anchor);
+retry:
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err < 0) {
+		RTKBT_ERR("%s: Failed to submit urb %p, pkt type %d, err %d, retries %d",
+				__func__, urb, bt_cb(skb)->pkt_type, err, retries);
+		if ((bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) && (retries < 10)) {
+			mdelay(1);
+
+			if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT)
+				print_error_command(skb);
+			retries++;
+			goto retry;
+		}
+		kfree(urb->setup_packet);
+		usb_unanchor_urb(urb);
+	} else
+		usb_mark_last_busy(data->udev);
+	usb_free_urb(urb);
+
+done:
+	return err;
+}
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
+static void btusb_destruct(struct hci_dev *hdev)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+
+	RTKBT_DBG("%s: name %s", __func__, hdev->name);
+
+	kfree(data);
+}
+#endif
+
+static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+
+	RTKBT_DBG("%s: name %s, evt %d", __func__, hdev->name, evt);
+
+	if (hdev->conn_hash.sco_num != data->sco_num) {
+		data->sco_num = hdev->conn_hash.sco_num;
+		schedule_work(&data->work);
+	}
+}
+
+static inline int set_isoc_interface(struct hci_dev *hdev, int altsetting)
+{
+	struct btusb_data *data = GET_DRV_DATA(hdev);
+	struct usb_interface *intf = data->isoc;
+	struct usb_endpoint_descriptor *ep_desc;
+	int i, err;
+
+	if (!data->isoc)
+		return -ENODEV;
+
+	err = usb_set_interface(data->udev, 1, altsetting);
+	if (err < 0) {
+		RTKBT_ERR("%s: Failed to set interface, altsetting %d, err %d",
+				__func__, altsetting, err);
+		return err;
+	}
+
+	data->isoc_altsetting = altsetting;
+
+	data->isoc_tx_ep = NULL;
+	data->isoc_rx_ep = NULL;
+
+	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+		if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
+			data->isoc_tx_ep = ep_desc;
+			continue;
+		}
+
+		if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
+			data->isoc_rx_ep = ep_desc;
+			continue;
+		}
+	}
+
+	if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
+		RTKBT_ERR("%s: Invalid SCO descriptors", __func__);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static void btusb_work(struct work_struct *work)
+{
+	struct btusb_data *data = container_of(work, struct btusb_data, work);
+	struct hci_dev *hdev = data->hdev;
+	int err;
+	int new_alts;
+
+	if (hdev->conn_hash.sco_num > 0) {
+		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
+			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
+			if (err < 0) {
+				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+				mdelay(URB_CANCELING_DELAY_MS);
+				usb_kill_anchored_urbs(&data->isoc_anchor);
+				return;
+			}
+
+			set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
+		}
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 7, 1)
+		if (hdev->voice_setting & 0x0020) {
+			static const int alts[3] = { 2, 4, 5 };
+			new_alts = alts[hdev->conn_hash.sco_num - 1];
+		} else{
+			new_alts = hdev->conn_hash.sco_num;
+		}
+		if (data->isoc_altsetting != new_alts) {
+#else
+		if (data->isoc_altsetting != 2) {
+			new_alts = 2;
+#endif
+
+			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+			mdelay(URB_CANCELING_DELAY_MS);
+			usb_kill_anchored_urbs(&data->isoc_anchor);
+
+			if (set_isoc_interface(hdev, new_alts) < 0)
+				return;
+		}
+
+		if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+			if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
+				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+			else
+				btusb_submit_isoc_urb(hdev, GFP_KERNEL);
+		}
+	} else {
+		clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+		mdelay(URB_CANCELING_DELAY_MS);
+		usb_kill_anchored_urbs(&data->isoc_anchor);
+
+		set_isoc_interface(hdev, 0);
+		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
+			usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
+	}
+}
+
+static void btusb_waker(struct work_struct *work)
+{
+	struct btusb_data *data = container_of(work, struct btusb_data, waker);
+	int err;
+
+	RTKBT_DBG("%s: PM usage count %d", __func__,
+			atomic_read(&data->intf->pm_usage_cnt));
+
+	err = usb_autopm_get_interface(data->intf);
+	if (err < 0)
+		return;
+
+	usb_autopm_put_interface(data->intf);
+}
+
+
+//#ifdef CONFIG_HAS_EARLYSUSPEND
+#if 0
+static void btusb_early_suspend(struct early_suspend *h)
+{
+	struct btusb_data *data;
+	firmware_info *fw_info;
+	patch_info *patch_entry;
+
+	RTKBT_INFO("%s", __func__);
+
+	data = container_of(h, struct btusb_data, early_suspend);
+	fw_info = data->fw_info;
+	patch_entry = fw_info->patch_entry;
+
+	patch_entry->fw_len = load_firmware(fw_info, &patch_entry->fw_cache);
+	if (patch_entry->fw_len <= 0) {
+		/* We may encount failure in loading firmware, just give a warning */
+		RTKBT_WARN("%s: Failed to load firmware", __func__);
+	}
+}
+
+static void btusb_late_resume(struct early_suspend *h)
+{
+	struct btusb_data *data;
+	firmware_info *fw_info;
+	patch_info *patch_entry;
+
+	RTKBT_INFO("%s", __func__);
+
+	data = container_of(h, struct btusb_data, early_suspend);
+	fw_info = data->fw_info;
+	patch_entry = fw_info->patch_entry;
+
+	/* Reclaim fw buffer when bt usb resumed */
+	if (patch_entry->fw_len > 0) {
+		kfree(patch_entry->fw_cache);
+		patch_entry->fw_cache = NULL;
+		patch_entry->fw_len = 0;
+	}
+}
+#else
+int bt_pm_notify(struct notifier_block *notifier, ulong pm_event, void *unused)
+{
+	struct btusb_data *data;
+	firmware_info *fw_info;
+	patch_info *patch_entry;
+	struct usb_device *udev;
+
+	RTKBT_INFO("%s: pm event %ld", __func__, pm_event);
+
+	data = container_of(notifier, struct btusb_data, pm_notifier);
+	fw_info = data->fw_info;
+	patch_entry = fw_info->patch_entry;
+	udev = fw_info->udev;
+
+	switch (pm_event) {
+	case PM_SUSPEND_PREPARE:
+	case PM_HIBERNATION_PREPARE:
+		patch_entry->fw_len = load_firmware(fw_info, &patch_entry->fw_cache);
+		if (patch_entry->fw_len <= 0) {
+		/* We may encount failure in loading firmware, just give a warning */
+			RTKBT_WARN("%s: Failed to load firmware", __func__);
+		}
+
+		if (!device_may_wakeup(&udev->dev)) {
+#if (CONFIG_RESET_RESUME || CONFIG_BLUEDROID)
+			RTKBT_INFO("%s:remote wakeup not supported, reset resume supported", __func__);
+#else
+			fw_info->intf->needs_binding = 1;
+			RTKBT_INFO("%s:remote wakeup not supported, binding needed", __func__);
+#endif
+		}
+		break;
+
+	case PM_POST_SUSPEND:
+	case PM_POST_HIBERNATION:
+	case PM_POST_RESTORE:
+		/* Reclaim fw buffer when bt usb resumed */
+		if (patch_entry->fw_len > 0) {
+			kfree(patch_entry->fw_cache);
+			patch_entry->fw_cache = NULL;
+			patch_entry->fw_len = 0;
+		}
+#if BTUSB_RPM
+		usb_disable_autosuspend(udev);
+		usb_enable_autosuspend(udev);
+		pm_runtime_set_autosuspend_delay(&(udev->dev), 2000);
+#endif
+		break;
+
+	default:
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+#endif
+
+static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_endpoint_descriptor *ep_desc;
+	struct btusb_data *data;
+	struct hci_dev *hdev;
+	firmware_info *fw_info;
+	int i, err=0;
+
+	RTKBT_INFO("%s: usb_interface %p, bInterfaceNumber %d, idVendor 0x%04x, "
+			"idProduct 0x%04x", __func__, intf,
+			intf->cur_altsetting->desc.bInterfaceNumber,
+			id->idVendor, id->idProduct);
+
+	/* interface numbers are hardcoded in the spec */
+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+		return -ENODEV;
+
+	RTKBT_DBG("%s: can wakeup = %x, may wakeup = %x", __func__,
+			device_can_wakeup(&udev->dev), device_may_wakeup(&udev->dev));
+
+	data = rtk_alloc(intf);
+	if (!data)
+		return -ENOMEM;
+
+	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+		if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
+			data->intr_ep = ep_desc;
+			continue;
+		}
+
+		if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
+			data->bulk_tx_ep = ep_desc;
+			continue;
+		}
+
+		if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
+			data->bulk_rx_ep = ep_desc;
+			continue;
+		}
+	}
+
+	if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
+		rtk_free(data);
+		return -ENODEV;
+	}
+
+	data->cmdreq_type = USB_TYPE_CLASS;
+
+	data->udev = udev;
+	data->intf = intf;
+
+	spin_lock_init(&data->lock);
+
+	INIT_WORK(&data->work, btusb_work);
+	INIT_WORK(&data->waker, btusb_waker);
+	spin_lock_init(&data->txlock);
+
+	init_usb_anchor(&data->tx_anchor);
+	init_usb_anchor(&data->intr_anchor);
+	init_usb_anchor(&data->bulk_anchor);
+	init_usb_anchor(&data->isoc_anchor);
+	init_usb_anchor(&data->deferred);
+
+	fw_info = firmware_info_init(intf);
+	if (fw_info)
+		data->fw_info = fw_info;
+	else {
+		RTKBT_WARN("%s: Failed to initialize fw info", __func__);
+		/* Skip download patch */
+		goto end;
+	}
+
+	RTKBT_INFO("%s: download begining...", __func__);
+
+#if CONFIG_BLUEDROID
+	mutex_lock(&btchr_mutex);
+#endif
+	err = download_patch(fw_info, 0);
+	/* If download failed, we just throw out a warning */
+	if (err < 0)
+		RTKBT_WARN("%s: Failed to download fw patch", __func__);
+#if CONFIG_BLUEDROID
+	mutex_unlock(&btchr_mutex);
+#endif
+
+	RTKBT_INFO("%s: download ending...", __func__);
+
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		rtk_free(data);
+		data = NULL;
+		return -ENOMEM;
+	}
+
+	HDEV_BUS = HCI_USB;
+
+	data->hdev = hdev;
+
+	SET_HCIDEV_DEV(hdev, &intf->dev);
+
+	hdev->open     = btusb_open;
+	hdev->close    = btusb_close;
+	hdev->flush    = btusb_flush;
+	hdev->send     = btusb_send_frame;
+	hdev->notify   = btusb_notify;
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
+	hci_set_drvdata(hdev, data);
+#else
+	hdev->driver_data = data;
+	hdev->destruct = btusb_destruct;
+	hdev->owner = THIS_MODULE;
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 1)
+	if (!reset_on_close){
+		/* set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); */
+		RTKBT_DBG("%s: Set HCI_QUIRK_RESET_ON_CLOSE", __func__);
+	}
+#endif
+
+	/* Interface numbers are hardcoded in the specification */
+	data->isoc = usb_ifnum_to_if(data->udev, 1);
+	if (data->isoc) {
+		err = usb_driver_claim_interface(&btusb_driver,
+							data->isoc, data);
+		if (err < 0) {
+			hci_free_dev(hdev);
+			hdev = NULL;
+			rtk_free(data);
+			data = NULL;
+			return err;
+		}
+	}
+
+	err = hci_register_dev(hdev);
+	if (err < 0) {
+		hci_free_dev(hdev);
+		hdev = NULL;
+		rtk_free(data);
+		data = NULL;
+		return err;
+	}
+
+	usb_set_intfdata(intf, data);
+
+//#ifdef CONFIG_HAS_EARLYSUSPEND
+#if 0
+	data->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN;
+	data->early_suspend.suspend = btusb_early_suspend;
+	data->early_suspend.resume = btusb_late_resume;
+	register_early_suspend(&data->early_suspend);
+#else
+	data->pm_notifier.notifier_call = bt_pm_notify;
+	register_pm_notifier(&data->pm_notifier);
+#endif
+
+#if CONFIG_BLUEDROID
+	RTKBT_INFO("%s: Check bt reset flag %d", __func__, bt_reset);
+	/* Report hci hardware error after everthing is ready,
+	 * especially hci register is completed. Or, btchr_poll
+	 * will get null hci dev when hotplug in.
+	 */
+	if (bt_reset == 1) {
+		hci_hardware_error();
+		bt_reset = 0;
+	} else
+		bt_reset = 0; /* Clear and reset it anyway */
+#endif
+
+end:
+	return 0;
+}
+
+static void btusb_disconnect(struct usb_interface *intf)
+{
+	struct btusb_data *data = usb_get_intfdata(intf);
+	struct hci_dev *hdev = NULL;
+
+	RTKBT_INFO("%s: usb_interface %p, bInterfaceNumber %d",
+			__func__, intf, intf->cur_altsetting->desc.bInterfaceNumber);
+
+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+		return;
+
+	if (data)
+		hdev = data->hdev;
+	else {
+		RTKBT_WARN("%s: Failed to get bt usb data[Null]", __func__);
+		return;
+	}
+
+//#ifdef CONFIG_HAS_EARLYSUSPEND
+#if 0
+	unregister_early_suspend(&data->early_suspend);
+#else
+	unregister_pm_notifier(&data->pm_notifier);
+#endif
+
+	firmware_info_destroy(intf);
+
+#if CONFIG_BLUEDROID
+	if (test_bit(HCI_RUNNING, &hdev->flags)) {
+		RTKBT_INFO("%s: Set BT reset flag", __func__);
+		bt_reset = 1;
+	}
+#endif
+
+	usb_set_intfdata(data->intf, NULL);
+
+	if (data->isoc)
+		usb_set_intfdata(data->isoc, NULL);
+
+	hci_unregister_dev(hdev);
+
+	if (intf == data->isoc)
+		usb_driver_release_interface(&btusb_driver, data->intf);
+	else if (data->isoc)
+		usb_driver_release_interface(&btusb_driver, data->isoc);
+
+#if !CONFIG_BLUEDROID
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
+	__hci_dev_put(hdev);
+#endif
+#endif
+
+	hci_free_dev(hdev);
+	rtk_free(data);
+	data = NULL;
+}
+
+#ifdef CONFIG_PM
+static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	struct btusb_data *data = usb_get_intfdata(intf);
+	firmware_info *fw_info = data->fw_info;
+
+	RTKBT_INFO("%s: event 0x%x, suspend count %d", __func__,
+			message.event, data->suspend_count);
+
+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+		return 0;
+
+	if (!test_bit(HCI_RUNNING, &data->hdev->flags))
+		set_bt_onoff(fw_info, 1);
+
+	if (data->suspend_count++)
+		return 0;
+
+	spin_lock_irq(&data->txlock);
+	if (!((message.event & PM_EVENT_AUTO) && data->tx_in_flight)) {
+		set_bit(BTUSB_SUSPENDING, &data->flags);
+		spin_unlock_irq(&data->txlock);
+	} else {
+		spin_unlock_irq(&data->txlock);
+		data->suspend_count--;
+		RTKBT_ERR("%s: Failed to enter suspend", __func__);
+		return -EBUSY;
+	}
+
+	cancel_work_sync(&data->work);
+
+	btusb_stop_traffic(data);
+	mdelay(URB_CANCELING_DELAY_MS);
+	usb_kill_anchored_urbs(&data->tx_anchor);
+
+	return 0;
+}
+
+static void play_deferred(struct btusb_data *data)
+{
+	struct urb *urb;
+	int err;
+
+	while ((urb = usb_get_from_anchor(&data->deferred))) {
+		usb_anchor_urb(urb, &data->tx_anchor);
+		err = usb_submit_urb(urb, GFP_ATOMIC);
+		if (err < 0) {
+			RTKBT_ERR("%s: Failed to submit urb %p, err %d",
+					__func__, urb, err);
+			kfree(urb->setup_packet);
+			usb_unanchor_urb(urb);
+		} else {
+			usb_mark_last_busy(data->udev);
+		}
+		usb_free_urb(urb);
+
+		data->tx_in_flight++;
+	}
+	mdelay(URB_CANCELING_DELAY_MS);
+	usb_scuttle_anchored_urbs(&data->deferred);
+}
+
+static int btusb_resume(struct usb_interface *intf)
+{
+	struct btusb_data *data = usb_get_intfdata(intf);
+	struct hci_dev *hdev = data->hdev;
+	firmware_info *fw_info = data->fw_info;
+	int err = 0;
+
+	RTKBT_INFO("%s: Suspend count %d", __func__, data->suspend_count);
+
+	if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+		return 0;
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+		RTKBT_INFO("%s: Bt is off, download patch before bt is on", __func__);
+		download_patch(fw_info, 1);
+	}
+
+	if (--data->suspend_count)
+		return 0;
+
+	if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
+		err = btusb_submit_intr_urb(hdev, GFP_NOIO);
+		if (err < 0) {
+			clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+			goto failed;
+		}
+	}
+
+	if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
+		err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
+		if (err < 0) {
+			clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+			goto failed;
+		}
+
+		btusb_submit_bulk_urb(hdev, GFP_NOIO);
+	}
+
+	if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+		if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
+			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+		else
+			btusb_submit_isoc_urb(hdev, GFP_NOIO);
+	}
+
+	spin_lock_irq(&data->txlock);
+	play_deferred(data);
+	clear_bit(BTUSB_SUSPENDING, &data->flags);
+	spin_unlock_irq(&data->txlock);
+	schedule_work(&data->work);
+
+	return 0;
+
+failed:
+	mdelay(URB_CANCELING_DELAY_MS);
+	usb_scuttle_anchored_urbs(&data->deferred);
+	spin_lock_irq(&data->txlock);
+	clear_bit(BTUSB_SUSPENDING, &data->flags);
+	spin_unlock_irq(&data->txlock);
+
+	return err;
+}
+#endif
+
+static struct usb_driver btusb_driver = {
+	.name		= "rtk_btusb",
+	.probe		= btusb_probe,
+	.disconnect	= btusb_disconnect,
+#ifdef CONFIG_PM
+	.suspend	= btusb_suspend,
+	.resume		= btusb_resume,
+#endif
+#if CONFIG_RESET_RESUME
+	.reset_resume	= btusb_resume,
+#endif
+	.id_table	= btusb_table,
+	.supports_autosuspend = 1,
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 7, 1)
+	.disable_hub_initiated_lpm = 1,
+#endif
+};
+
+static int __init btusb_init(void)
+{
+	int err;
+	wifi_power_ctrl(1);//added by rubbit
+	RTKBT_INFO("Realtek Bluetooth USB driver module init, version %s", VERSION);
+#if CONFIG_BLUEDROID
+	err = btchr_init();
+	if (err < 0) {
+		/* usb register will go on, even bt char register failed */
+		RTKBT_ERR("Failed to register usb char device interfaces");
+	} else
+		bt_char_dev_registered = 1;
+#endif
+	err = usb_register(&btusb_driver);
+	if (err < 0)
+		RTKBT_ERR("Failed to register RTK bluetooth USB driver");
+	return err;
+}
+
+static void __exit btusb_exit(void)
+{
+	RTKBT_INFO("Realtek Bluetooth USB driver module exit");
+#if CONFIG_BLUEDROID
+	if (bt_char_dev_registered > 0)
+		btchr_exit();
+#endif
+	usb_deregister(&btusb_driver);
+	wifi_power_ctrl(0);//added by rubbit
+}
+
+module_init(btusb_init);
+module_exit(btusb_exit);
+
+MODULE_AUTHOR("Realtek Corporation");
+MODULE_DESCRIPTION("Realtek Bluetooth USB driver version");
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
diff --git a/ANDROID_3.4.5/drivers/bluetooth/rtk_btusb.h b/ANDROID_3.4.5/drivers/bluetooth/rtk_btusb.h
new file mode 100755
index 00000000..ae172258
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bluetooth/rtk_btusb.h
@@ -0,0 +1,486 @@
+/*
+ *
+ *  Realtek Bluetooth USB driver
+ *
+ *
+ *  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/interrupt.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/errno.h>
+#include <linux/usb.h>
+#include <linux/cdev.h>
+#include <linux/device.h>
+#include <linux/poll.h>
+
+#include <linux/version.h>
+#include <linux/pm_runtime.h>
+#include <linux/firmware.h>
+#include <linux/suspend.h>
+
+#define CONFIG_BLUEDROID		1 /* bleuz 0, bluedroid 1 */
+
+/* Some Android system may use standard Linux kernel, while
+ * standard Linux may also implement early suspend feature.
+ * So exclude earysuspend.h from CONFIG_BLUEDROID.
+ */
+#ifdef CONFIG_HAS_EARLYSUSPEND
+#include <linux/earlysuspend.h>
+#endif
+
+#if CONFIG_BLUEDROID
+#else
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/hci.h>
+#endif
+
+
+/***********************************
+** Realtek - For rtk_btusb driver **
+***********************************/
+#define URB_CANCELING_DELAY_MS          10
+/* when OS suspended, module is still powered,usb is not powered,
+ * this may set to 1, and must comply with special patch code.
+ */
+#define CONFIG_RESET_RESUME		0
+#define PRINT_CMD_EVENT			0
+#define PRINT_ACL_DATA			0
+#define PRINT_SCO_DATA			0
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 33)
+#define HDEV_BUS		hdev->bus
+#define USB_RPM			1
+#else
+#define HDEV_BUS		hdev->type
+#define USB_RPM			0
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 38)
+#define NUM_REASSEMBLY 3
+#endif
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 4, 0)
+#define GET_DRV_DATA(x)		hci_get_drvdata(x)
+#else
+#define GET_DRV_DATA(x)		x->driver_data
+#endif
+
+#define BTUSB_RPM		(0 * USB_RPM) /* 1 SS enable; 0 SS disable */
+#define BTUSB_WAKEUP_HOST		0	/* 1  enable; 0  disable */
+#define BTUSB_MAX_ISOC_FRAMES	10
+#define BTUSB_INTR_RUNNING		0
+#define BTUSB_BULK_RUNNING		1
+#define BTUSB_ISOC_RUNNING		2
+#define BTUSB_SUSPENDING		3
+#define BTUSB_DID_ISO_RESUME	4
+
+#define HCI_CMD_READ_BD_ADDR 0x1009
+#define HCI_VENDOR_CHANGE_BDRATE 0xfc17
+#define HCI_VENDOR_READ_RTK_ROM_VERISION 0xfc6d
+#define HCI_VENDOR_READ_LMP_VERISION 0x1001
+
+#define ROM_LMP_8723a               0x1200
+#define ROM_LMP_8723b               0x8723
+#define ROM_LMP_8821a               0X8821
+#define ROM_LMP_8761a               0X8761
+
+/* signature: Realtek */
+const uint8_t RTK_EPATCH_SIGNATURE[8] = {0x52,0x65,0x61,0x6C,0x74,0x65,0x63,0x68};
+/* Extension Section IGNATURE:0x77FD0451 */
+const uint8_t EXTENSION_SECTION_SIGNATURE[4] = {0x51,0x04,0xFD,0x77};
+
+uint16_t project_id[] = {
+	ROM_LMP_8723a,
+	ROM_LMP_8723b,
+	ROM_LMP_8821a,
+	ROM_LMP_8761a
+};
+struct rtk_eversion_evt {
+	uint8_t status;
+	uint8_t version;
+} __attribute__ ((packed));
+
+struct rtk_epatch_entry {
+	uint16_t chip_id;
+	uint16_t patch_length;
+	uint32_t start_offset;
+	uint32_t coex_version;
+	uint32_t svn_version;
+	uint32_t fw_version;
+} __attribute__ ((packed));
+
+struct rtk_epatch {
+	uint8_t signature[8];
+	uint32_t fw_version;
+	uint16_t number_of_total_patch;
+	struct rtk_epatch_entry entry[0];
+} __attribute__ ((packed));
+
+struct rtk_extension_entry {
+	uint8_t opcode;
+	uint8_t length;
+	uint8_t *data;
+} __attribute__ ((packed));
+/* Realtek - For rtk_btusb driver end */
+
+#if CONFIG_BLUEDROID
+#define QUEUE_SIZE 500
+
+/***************************************
+** Realtek - Integrate from bluetooth.h **
+*****************************************/
+/* Reserv for core and drivers use */
+#define BT_SKB_RESERVE	8
+
+/* BD Address */
+typedef struct {
+	__u8 b[6];
+} __packed bdaddr_t;
+
+/* Skb helpers */
+struct bt_skb_cb {
+	__u8 pkt_type;
+	__u8 incoming;
+	__u16 expect;
+	__u16 tx_seq;
+	__u8 retries;
+	__u8 sar;
+	__u8 force_active;
+};
+
+#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
+
+static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
+{
+	struct sk_buff *skb;
+
+	if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
+		skb_reserve(skb, BT_SKB_RESERVE);
+		bt_cb(skb)->incoming  = 0;
+	}
+	return skb;
+}
+/* Realtek - Integrate from bluetooth.h end */
+
+/***********************************
+** Realtek - Integrate from hci.h **
+***********************************/
+#define HCI_MAX_ACL_SIZE	1024
+#define HCI_MAX_SCO_SIZE	255
+#define HCI_MAX_EVENT_SIZE	260
+#define HCI_MAX_FRAME_SIZE	(HCI_MAX_ACL_SIZE + 4)
+
+/* HCI bus types */
+#define HCI_VIRTUAL	0
+#define HCI_USB		1
+#define HCI_PCCARD	2
+#define HCI_UART	3
+#define HCI_RS232	4
+#define HCI_PCI		5
+#define HCI_SDIO	6
+
+/* HCI controller types */
+#define HCI_BREDR	0x00
+#define HCI_AMP		0x01
+
+/* HCI device flags */
+enum {
+	HCI_UP,
+	HCI_INIT,
+	HCI_RUNNING,
+
+	HCI_PSCAN,
+	HCI_ISCAN,
+	HCI_AUTH,
+	HCI_ENCRYPT,
+	HCI_INQUIRY,
+
+	HCI_RAW,
+
+	HCI_RESET,
+};
+
+/*
+ * BR/EDR and/or LE controller flags: the flags defined here should represent
+ * states from the controller.
+ */
+enum {
+	HCI_SETUP,
+	HCI_AUTO_OFF,
+	HCI_MGMT,
+	HCI_PAIRABLE,
+	HCI_SERVICE_CACHE,
+	HCI_LINK_KEYS,
+	HCI_DEBUG_KEYS,
+	HCI_UNREGISTER,
+
+	HCI_LE_SCAN,
+	HCI_SSP_ENABLED,
+	HCI_HS_ENABLED,
+	HCI_LE_ENABLED,
+	HCI_CONNECTABLE,
+	HCI_DISCOVERABLE,
+	HCI_LINK_SECURITY,
+	HCI_PENDING_CLASS,
+};
+
+/* HCI data types */
+#define HCI_COMMAND_PKT		0x01
+#define HCI_ACLDATA_PKT		0x02
+#define HCI_SCODATA_PKT		0x03
+#define HCI_EVENT_PKT		0x04
+#define HCI_VENDOR_PKT		0xff
+
+#define HCI_MAX_NAME_LENGTH		248
+#define HCI_MAX_EIR_LENGTH		240
+
+#define HCI_OP_READ_LOCAL_VERSION	0x1001
+struct hci_rp_read_local_version {
+	__u8     status;
+	__u8     hci_ver;
+	__le16   hci_rev;
+	__u8     lmp_ver;
+	__le16   manufacturer;
+	__le16   lmp_subver;
+} __packed;
+
+#define HCI_EV_CMD_COMPLETE		0x0e
+struct hci_ev_cmd_complete {
+	__u8     ncmd;
+	__le16   opcode;
+} __packed;
+
+/* ---- HCI Packet structures ---- */
+#define HCI_COMMAND_HDR_SIZE 3
+#define HCI_EVENT_HDR_SIZE   2
+#define HCI_ACL_HDR_SIZE     4
+#define HCI_SCO_HDR_SIZE     3
+
+struct hci_command_hdr {
+	__le16	opcode;		/* OCF & OGF */
+	__u8	plen;
+} __packed;
+
+struct hci_event_hdr {
+	__u8	evt;
+	__u8	plen;
+} __packed;
+
+struct hci_acl_hdr {
+	__le16	handle;		/* Handle & Flags(PB, BC) */
+	__le16	dlen;
+} __packed;
+
+struct hci_sco_hdr {
+	__le16	handle;
+	__u8	dlen;
+} __packed;
+
+static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)
+{
+	return (struct hci_event_hdr *) skb->data;
+}
+
+static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)
+{
+	return (struct hci_acl_hdr *) skb->data;
+}
+
+static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
+{
+	return (struct hci_sco_hdr *) skb->data;
+}
+
+/* ---- HCI Ioctl requests structures ---- */
+struct hci_dev_stats {
+	__u32 err_rx;
+	__u32 err_tx;
+	__u32 cmd_tx;
+	__u32 evt_rx;
+	__u32 acl_tx;
+	__u32 acl_rx;
+	__u32 sco_tx;
+	__u32 sco_rx;
+	__u32 byte_rx;
+	__u32 byte_tx;
+};
+/* Realtek - Integrate from hci.h end */
+
+/*****************************************
+** Realtek - Integrate from hci_core.h  **
+*****************************************/
+struct hci_conn_hash {
+	struct list_head list;
+	unsigned int     acl_num;
+	unsigned int     sco_num;
+	unsigned int     le_num;
+};
+
+#define HCI_MAX_SHORT_NAME_LENGTH	10
+
+#define NUM_REASSEMBLY 4
+struct hci_dev {
+	struct mutex	lock;
+
+	char		name[8];
+	unsigned long	flags;
+	__u16		id;
+	__u8		bus;
+	__u8		dev_type;
+
+	struct sk_buff		*reassembly[NUM_REASSEMBLY];
+
+	struct hci_conn_hash	conn_hash;
+
+	struct hci_dev_stats	stat;
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
+	atomic_t        refcnt;
+	struct module           *owner;
+	void                    *driver_data;
+#endif
+
+	atomic_t		promisc;
+
+    struct device		*parent;
+	struct device		dev;
+
+	unsigned long		dev_flags;
+
+	int (*open)(struct hci_dev *hdev);
+	int (*close)(struct hci_dev *hdev);
+	int (*flush)(struct hci_dev *hdev);
+	int (*send)(struct sk_buff *skb);
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
+	void (*destruct)(struct hci_dev *hdev);
+#endif
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 7, 1)
+	__u16               voice_setting;
+#endif
+	void (*notify)(struct hci_dev *hdev, unsigned int evt);
+	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
+};
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(3, 4, 0)
+static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
+{
+	atomic_inc(&d->refcnt);
+	return d;
+}
+
+static inline void __hci_dev_put(struct hci_dev *d)
+{
+	if (atomic_dec_and_test(&d->refcnt))
+		d->destruct(d);
+}
+#endif
+
+static inline void *hci_get_drvdata(struct hci_dev *hdev)
+{
+	return dev_get_drvdata(&hdev->dev);
+}
+
+static inline int hci_set_drvdata(struct hci_dev *hdev, void *data)
+{
+	return dev_set_drvdata(&hdev->dev, data);
+}
+
+#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
+/* Realtek - Integrate from hci_core.h end */
+
+/* -----  HCI Commands ---- */
+#define HCI_OP_INQUIRY			0x0401
+#define HCI_OP_INQUIRY_CANCEL		0x0402
+#define HCI_OP_EXIT_PERIODIC_INQ	0x0404
+#define HCI_OP_CREATE_CONN		0x0405
+#define HCI_OP_DISCONNECT				0x0406
+#define HCI_OP_ADD_SCO			0x0407
+#define HCI_OP_CREATE_CONN_CANCEL	0x0408
+#define HCI_OP_ACCEPT_CONN_REQ		0x0409
+#define HCI_OP_REJECT_CONN_REQ		0x040a
+#define HCI_OP_LINK_KEY_REPLY		0x040b
+#define HCI_OP_LINK_KEY_NEG_REPLY	0x040c
+#define HCI_OP_PIN_CODE_REPLY		0x040d
+#define HCI_OP_PIN_CODE_NEG_REPLY	0x040e
+#define HCI_OP_CHANGE_CONN_PTYPE	0x040f
+#define HCI_OP_AUTH_REQUESTED		0x0411
+#define HCI_OP_SET_CONN_ENCRYPT		0x0413
+#define HCI_OP_CHANGE_CONN_LINK_KEY	0x0415
+#define HCI_OP_REMOTE_NAME_REQ		0x0419
+#define HCI_OP_REMOTE_NAME_REQ_CANCEL	0x041a
+#define HCI_OP_READ_REMOTE_FEATURES	0x041b
+#define HCI_OP_READ_REMOTE_EXT_FEATURES	0x041c
+#define HCI_OP_READ_REMOTE_VERSION	0x041d
+#define HCI_OP_SETUP_SYNC_CONN		0x0428
+#define HCI_OP_ACCEPT_SYNC_CONN_REQ	0x0429
+#define HCI_OP_REJECT_SYNC_CONN_REQ	0x042a
+#define HCI_OP_SNIFF_MODE		0x0803
+#define HCI_OP_EXIT_SNIFF_MODE		0x0804
+#define HCI_OP_ROLE_DISCOVERY		0x0809
+#define HCI_OP_SWITCH_ROLE		0x080b
+#define HCI_OP_READ_LINK_POLICY		0x080c
+#define HCI_OP_WRITE_LINK_POLICY	0x080d
+#define HCI_OP_READ_DEF_LINK_POLICY	0x080e
+#define HCI_OP_WRITE_DEF_LINK_POLICY	0x080f
+#define HCI_OP_SNIFF_SUBRATE		0x0811
+#define HCI_OP_SET_EVENT_MASK		0x0c01
+#define HCI_OP_RESET			0x0c03
+#define HCI_OP_SET_EVENT_FLT		0x0c05
+
+/* -----  HCI events---- */
+#define HCI_OP_DISCONNECT		0x0406
+#define HCI_EV_INQUIRY_COMPLETE		0x01
+#define HCI_EV_INQUIRY_RESULT		0x02
+#define HCI_EV_CONN_COMPLETE		0x03
+#define HCI_EV_CONN_REQUEST			0x04
+#define HCI_EV_DISCONN_COMPLETE		0x05
+#define HCI_EV_AUTH_COMPLETE		0x06
+#define HCI_EV_REMOTE_NAME			0x07
+#define HCI_EV_ENCRYPT_CHANGE		0x08
+#define HCI_EV_CHANGE_LINK_KEY_COMPLETE	0x09
+
+#define HCI_EV_REMOTE_FEATURES		0x0b
+#define HCI_EV_REMOTE_VERSION		0x0c
+#define HCI_EV_QOS_SETUP_COMPLETE	0x0d
+#define HCI_EV_CMD_COMPLETE			0x0e
+#define HCI_EV_CMD_STATUS			0x0f
+
+#define HCI_EV_ROLE_CHANGE			0x12
+#define HCI_EV_NUM_COMP_PKTS		0x13
+#define HCI_EV_MODE_CHANGE			0x14
+#define HCI_EV_PIN_CODE_REQ			0x16
+#define HCI_EV_LINK_KEY_REQ			0x17
+#define HCI_EV_LINK_KEY_NOTIFY		0x18
+#define HCI_EV_CLOCK_OFFSET			0x1c
+#define HCI_EV_PKT_TYPE_CHANGE		0x1d
+#define HCI_EV_PSCAN_REP_MODE		0x20
+
+#define HCI_EV_INQUIRY_RESULT_WITH_RSSI	0x22
+#define HCI_EV_REMOTE_EXT_FEATURES	0x23
+#define HCI_EV_SYNC_CONN_COMPLETE	0x2c
+#define HCI_EV_SYNC_CONN_CHANGED	0x2d
+#define HCI_EV_SNIFF_SUBRATE			0x2e
+#define HCI_EV_EXTENDED_INQUIRY_RESULT	0x2f
+#define HCI_EV_IO_CAPA_REQUEST		0x31
+#define HCI_EV_SIMPLE_PAIR_COMPLETE	0x36
+#define HCI_EV_REMOTE_HOST_FEATURES	0x3d
+
+#endif /* CONFIG_BLUEDROID */
diff --git a/ANDROID_3.4.5/drivers/bluetooth/test_skeleton.c b/ANDROID_3.4.5/drivers/bluetooth/test_skeleton.c
new file mode 100755
index 00000000..a29e4feb
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bluetooth/test_skeleton.c
@@ -0,0 +1,182 @@
+/*

+ * Copyright 2012 WonderMedia Technologies, Inc. All Rights Reserved. 

+ *  

+ * This PROPRIETARY SOFTWARE is the property of WonderMedia Technologies, Inc. 

+ * and may contain trade secrets and/or other confidential information of 

+ * WonderMedia Technologies, Inc. This file shall not be disclosed to any third party, 

+ * in whole or in part, without prior written consent of WonderMedia. 

+ *  

+ * THIS PROPRIETARY SOFTWARE AND ANY RELATED DOCUMENTATION ARE PROVIDED AS IS, 

+ * WITH ALL FAULTS, AND WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED, 

+ * AND WonderMedia TECHNOLOGIES, INC. DISCLAIMS ALL EXPRESS OR IMPLIED WARRANTIES 

+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.  

+ */

+

+#include <linux/module.h>	/* Specifically, a module */

+#include <linux/kernel.h>	/* We're doing kernel work */

+#include <linux/proc_fs.h>	/* Necessary because we use the proc fs */

+#include <linux/uaccess.h>  //for copy_from_user

+#include <linux/pwm.h>

+#include <mach/hardware.h>//WMT_MMAP_OFFSET

+

+

+#define procfs_name "bt_test"

+

+

+int skip = 0x00;

+

+extern struct proc_dir_entry proc_root;

+

+//extern void mt_bt_power_off(void);

+//extern int mt_bt_power_on(void);

+/**

+ * This structure hold information about the /proc file

+ *

+ */

+struct proc_dir_entry *Our_Proc_test;

+

+extern void dump_uart_info(void);

+static int procfile_read(char *buffer,

+	      char **buffer_location,

+	      off_t offset, int buffer_length, int *eof, void *data)

+{

+	int ret = 0;

+	

+	

+	/* 

+	 * We give all of our information in one go, so if the

+	 * user asks us if we have more information the

+	 * answer should always be no.

+	 *

+	 * This is important because the standard read

+	 * function from the library would continue to issue

+	 * the read system call until the kernel replies

+	 * that it has no more information, or until its

+	 * buffer is filled.

+	 */

+	printk("enter dump\n");

+	dump_uart_info();

+	return ret;

+}

+//configure pwm1 pin

+void config_pwm1_pin1(int enable)

+{

+	int val;

+	if(enable) {

+		val = readb(0xd8110200+WMT_MMAP_OFFSET);

+		val &= ~(1 << 7);

+		writeb(val, 0xd8110200+WMT_MMAP_OFFSET);

+	}else{

+		val = readb(0xd8110200+WMT_MMAP_OFFSET);

+		val |= (1 << 7);

+		writeb(val, 0xd8110200+WMT_MMAP_OFFSET);

+	}

+}

+

+static struct pwm_device * g_pwm1 =NULL;

+

+void enable_pwm1_32KHz1(int enable)

+{

+	static int first = 0x01;

+	if(first) {

+		first = 0x00;

+		printk("begint ot pwm request\n");

+		g_pwm1 = pwm_request(0x01,"mtk6622 bluetooth 32KHz");

+		if(!g_pwm1){

+			printk("can not request pwm1 for bluetooth mtk6622\n");

+			return;

+		}

+	}

+	if(enable) {

+		pwm_config(g_pwm1, 15625, 31250);

+		pwm_enable(g_pwm1);

+		printk("enable 32khz output\n");

+	}else{

+		pwm_disable(g_pwm1);

+		printk("disable 32khz output\n");

+	}

+}

+/*

+ *this funciton just for facilitate debugging

+ *command formater: echo "digital strings" > /proc/usb_serail

+ * setenv wmt.6620.pmu "e3:3:D8110040:D8110080:D81100c0:D81100c4:D81100c8"

+ * saveenv

+*/

+static int procfile_write(struct file *file, const char __user *buffer,

+			   unsigned long count, void *data)

+{

+	char tmp[128];

+	char printbuf[128];

+	int num;

+	int option;

+

+	

+	if(buffer && !copy_from_user(tmp, buffer, sizeof(tmp))) {

+

+		num = sscanf(tmp, "%d", &option);				

+		printk("your input: option:%d\n",option);

+

+		

+		switch(option) {

+		case 0:  //power off bluetooth

+			//mt_bt_power_off();

+		  break;

+		case 1:  //power on bluetooth chip

+			//mt_bt_power_on();

+		  break;

+		case 2:  //open bluetooth interruption

+			//mt_bt_enable_irq();

+			break;

+		case 3: //close bluetooth interruption

+			//mt_bt_disable_irq();

+			break;

+		case 4: //enable 32KHz

+			//config_pwm1_pin1(1);

+			//enable_pwm1_32KHz1(1);

+			pwm_32KHZ_control(1);

+			break;

+		case 5: //disable 32KHz

+			//enable_pwm1_32KHz1(0);

+			pwm_32KHZ_control(0);

+			break;			

+		default:

+			printk("test command,for example: echo 1  > /proc/bt_test\n");

+		}

+		return strlen(tmp);

+	}else{

+		printk("copy_from_user failed or buffer is null\n");

+	}

+}			   

+

+int test_skeleton_proc_init(void)

+{

+	printk("enter test_skeleton_proc_init\n");

+	Our_Proc_test = create_proc_entry(procfs_name, 0644, NULL);

+	

+	if (Our_Proc_test == NULL) {

+		//remove_proc_entry(procfs_name, &proc_root);

+		printk(KERN_ALERT "Error: Could not initialize /proc/%s\n",

+		       procfs_name);

+		return -ENOMEM;

+	}

+

+	Our_Proc_test->read_proc = procfile_read;

+	Our_Proc_test->write_proc = procfile_write;

+//	//Our_Proc_test->owner 	 = THIS_MODULE;

+//	Our_Proc_test->mode 	 = S_IFREG | S_IRUGO;

+//	Our_Proc_test->uid 	 = 0;

+//	Our_Proc_test->gid 	 = 0;

+//	Our_Proc_test->size 	 = 37;   //size what is its mean ?

+

+	return 0;	/* everything is ok */

+}

+int deinit_proc_init(void)

+{

+	if(Our_Proc_test != NULL){

+        remove_proc_entry(procfs_name,NULL);

+        Our_Proc_test = NULL;

+    }

+		return 0;

+}

+

+EXPORT_SYMBOL(test_skeleton_proc_init);

diff --git a/ANDROID_3.4.5/drivers/bluetooth/wmt_rfkill_bluetooth.c b/ANDROID_3.4.5/drivers/bluetooth/wmt_rfkill_bluetooth.c
new file mode 100755
index 00000000..476f1ab0
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bluetooth/wmt_rfkill_bluetooth.c
@@ -0,0 +1,383 @@
+/*
+ * arch/arm/mach-wmt/wmt_rfkill_bluetooth.c
+ * Copyright (c) RubbitXiao RubbitXiao@wondermedia.com.cn
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ *	    wonderMedia bluetooth "driver"
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/rfkill.h>
+#include <asm/io.h>//for readb/writeb
+#include <mach/hardware.h>//WMT_MMAP_OFFSET
+#include <linux/pwm.h> //for pwm
+#include <mach/wmt_iomux.h>
+
+
+#define DRV_NAME "wmt-bt"
+
+static int pwren_num = -1;
+static int active_level = -1;
+static int gpio_int_num = -1;
+static int src_32K =1;
+enum LEVEL {
+	LOW = 0,
+	HIGH,
+};
+enum POWER_CTRL {
+	POWER_DIS = 0,
+	POWER_EN,
+};
+
+extern int wmt_getsyspara(char *varname, char *varval, int *varlen);
+void pwm_set_enable(int no,int enable);
+void pwm_set_freq(int no,unsigned int freq);
+void pwm_set_level(int no,unsigned int level);
+int bluetooth_power_ctrl(int gpio_num, int enable,int active_level);
+//configure pwm1/2 pin
+void config_pwm_pin(int pwm_num,int enable)
+{
+	int val;
+	if(enable) {
+		val = readb(0xd8110200+WMT_MMAP_OFFSET);
+		val &= ~(1 << 7);
+		writeb(val, 0xd8110200+WMT_MMAP_OFFSET);
+	}else{
+		val = readb(0xd8110200+WMT_MMAP_OFFSET);
+		val |= (1 << 7);
+		writeb(val, 0xd8110200+WMT_MMAP_OFFSET);
+	}
+}
+
+static struct pwm_device * g_pwm =NULL;
+DEFINE_SPINLOCK(pwm_lock);
+static volatile int g_pwm_enable = 0x00;
+
+static int enable_pwm_32KHz(int pwm_num,int enable)
+{
+	if(enable) {
+		if(!g_pwm){
+			g_pwm = pwm_request(pwm_num,"bluetooth 32KHz");
+			if(!g_pwm){
+				printk("can not request pwm1 for bluetooth mtk6622\n");
+				return -ENOMEM;
+			}	
+		}
+		//pwm_config(g_pwm, 15625, 31250);// configuration output 32KHZ
+		pwm_config(g_pwm, 15258, 30517);// configuration output 32768HZ
+		pwm_enable(g_pwm);
+		config_pwm_pin(pwm_num,0x01);
+		printk("enable 32khz output\n");
+		mdelay(200);
+	}else{
+		pwm_disable(g_pwm);
+		config_pwm_pin(pwm_num,0x00);
+		printk("disable 32khz output\n");
+	}
+	return 0;
+}
+
+/*
+* TODO: should atomis operation
+*/
+int enable_32Khz(int enable)
+{
+	int val;
+	val = readb(0xd8110203+WMT_MMAP_OFFSET);
+	if(enable)
+	{		
+		val |= (1 << 4);
+	}else
+	{
+		val &= ~(1 << 4);
+	}
+	writeb(val, 0xd8110203+WMT_MMAP_OFFSET);
+	return 0;
+}
+
+
+static void realease_pwm(void)
+{
+	if(g_pwm)
+		pwm_free(g_pwm);
+	g_pwm = NULL;
+}
+
+
+int pwm_32KHZ_control(int enable)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&pwm_lock, flags);
+	if(enable){
+		enable_pwm_32KHz(src_32K,1);	
+	}else{
+		enable_pwm_32KHz(src_32K,0);	
+	}
+	printk("enable:%d\n",enable);
+	spin_unlock_irqrestore(&pwm_lock, flags);
+}
+EXPORT_SYMBOL(pwm_32KHZ_control);
+
+/* Bluetooth control */
+static void bt_enable(int on)
+{
+	if (on) {
+		printk("bt_enable on:%d\n",on);
+		if(src_32K == 4){
+			enable_32Khz(1);		
+		}else{
+			pwm_32KHZ_control(1);
+		}
+		mdelay(50);
+		/* Power on the chip */
+		//gpio_set_value(pwren_num, 1);,&
+		bluetooth_power_ctrl(pwren_num, POWER_EN,active_level);
+		mdelay(100);
+	}
+	else {
+		printk("bt_enable on:%d\n",on);
+		//gpio_set_value(pwren_num, 0);
+		bluetooth_power_ctrl(pwren_num, POWER_DIS,active_level);
+		mdelay(50);
+		if(src_32K == 4){
+		  //enable_32Khz(0);
+		}else{
+		//pwm_32KHZ_control(0);
+		}
+		mdelay(100);
+	}
+}
+
+static int bt_set_block(void *data, bool blocked)
+{
+	bt_enable(!blocked);
+	return 0;
+}
+
+static const struct rfkill_ops bt_rfkill_ops = {
+	.set_block = bt_set_block,
+};
+
+#include "test_skeleton.c"  //for test_skeleton_proc_init()
+
+
+int bluetooth_power_ctrl(int gpio_num, int enable,int active_level)
+{	
+	if(enable){
+		/*for power enable gpio pin*/
+		if(active_level)
+			gpio_direction_output(gpio_num, HIGH);
+		else
+			gpio_direction_output(gpio_num, LOW);
+	}else{
+		if(active_level)
+			gpio_direction_output(gpio_num, LOW);
+		else
+			gpio_direction_output(gpio_num, HIGH);
+	}
+	
+	return 0;
+}
+
+
+static int __devinit bt_probe(struct platform_device *pdev)
+{
+	struct rfkill *rfk;
+	int ret = 0;
+
+	char buf[256];
+	int varlen = 256;	
+
+	
+	/*
+	* wmt.bt.brcm formater as follows:
+	*   pwren_num:active_level:gpio_int_num:src_32K
+	*   for example:  151:1:0
+	*   src_32K:
+	*    1:pwm1
+	*    2:pwm2
+	*    3:pwm3
+	*    4:susgpio3 cpu output 32KHz
+	*
+	*    for 8723bs_bt modules on SK_WAVE7_FT5316_BET-CT070040  gpio14 as bt power enable
+	*		setenv wmt.bt.brcm 14:1:0:4
+	*	 for ap6330 bt modules on 30KT   susgpio2 as bt power enable
+	*		setenv wmt.bt.brcm 151:1:0:4
+	*/
+	if(wmt_getsyspara("wmt.bt.brcm",buf,&varlen) == 0)
+	{
+	  sscanf(buf,"%d:%d:%d:%d",&pwren_num,&active_level,&gpio_int_num,&src_32K);
+		printk("use customized value:p%d,a%d,i%d,32K src:%d for wmt rfkill bluetooth\n",pwren_num,active_level,gpio_int_num,src_32K);	  
+	} else {
+		pwren_num = WMT_PIN_GP62_WAKEUP2;
+		active_level = 0x01;
+		gpio_int_num = -1;
+		src_32K = 1;
+		printk("use default value:p%d,a%d,i%d for wmt rfkill bluetooth\n",pwren_num,active_level,gpio_int_num);
+	
+	}
+
+#if 1
+	/*for power enable gpio pin*/
+	ret = gpio_request(pwren_num, "rfkill bluetooth power/reset pin");
+	if(ret < 0) {
+			printk("request gpio:%x failed!!! for rfkill bluetooth\n",pwren_num);
+			goto err_rfk_alloc;
+	}else{
+			printk("request gpio:%d for rfkill bluetooth success!!!\n",pwren_num);
+	}
+
+	ret = gpio_request(WMT_PIN_GP1_GPIO14, "bt_wakeup");
+	if (ret < 0)
+		printk("reuqest bt_wakeup gpio failed!\n");
+	else
+		printk("reuqest bt_wakeup gpio sucessful!\n");
+	gpio_direction_output(WMT_PIN_GP1_GPIO14, 1);	
+#endif
+	bluetooth_power_ctrl(pwren_num, POWER_DIS, active_level);
+	
+#if 0
+	/*for bt wakeup gpio pin*/
+	ret = gpio_request(WMT_PIN_GP1_GPIO14, "bluetooth wakeup pin");
+	if(ret < 0) {
+			printk("request gpio:%x failed!!! bluetooth wakeup pin\n",WMT_PIN_GP1_GPIO14);
+			goto err_rfk_alloc;
+	}else{
+			printk("request gpio:%d for bluetooth wakeup pin success!!!\n",WMT_PIN_GP1_GPIO14);
+	}
+	gpio_direction_output(WMT_PIN_GP1_GPIO14, HIGH);
+#endif
+	
+	/* Configures BT serial port GPIOs */
+	//this jobs is doned in uart serial drivers
+#if 0
+	//first disable bluetooth module during system booting stage.
+	if(active_level)
+		gpio_direction_output(pwren_num, LOW);
+	else
+		gpio_direction_output(pwren_num, HIGH);
+	//enable_32Khz(0x00);	//disable susgpio3 ouput 32Khz, which lead to system hangup and can not enter suspend.
+#endif
+	
+	if(!g_pwm && src_32K < 4){
+		printk("begint to pwm request\n");
+		g_pwm = pwm_request(src_32K,"bluetooth 32KHz");
+		if(!g_pwm){
+			printk("can not request pwm1 for bluetooth mtk6622\n");
+			ret = -ENOMEM;
+			goto err_rfk_alloc;
+		}	
+	}else{
+		enable_32Khz(1);	
+	}
+	
+	rfk = rfkill_alloc(DRV_NAME, &pdev->dev, RFKILL_TYPE_BLUETOOTH,
+			&bt_rfkill_ops, NULL);
+	if (!rfk) {
+		ret = -ENOMEM;
+		goto err_rfk_alloc;
+	}
+
+	ret = rfkill_register(rfk);
+	if (ret)
+		goto err_rfkill;
+
+	platform_set_drvdata(pdev, rfk);
+	test_skeleton_proc_init();
+	return 0;
+
+err_rfkill:
+	rfkill_destroy(rfk);
+err_rfk_alloc:
+	return ret;
+}
+
+
+
+
+
+static int bt_remove(struct platform_device *pdev)
+{
+	struct rfkill *rfk = platform_get_drvdata(pdev);
+
+	platform_set_drvdata(pdev, NULL);
+
+	if (rfk) {
+		rfkill_unregister(rfk);
+		rfkill_destroy(rfk);
+	}
+	rfk = NULL;
+	bt_enable(0);
+	gpio_free(pwren_num);
+	//gpio_free(WMT_PIN_GP1_GPIO9);
+	gpio_free(WMT_PIN_GP1_GPIO14);
+	if(src_32K<4)
+	  realease_pwm();
+	deinit_proc_init();
+	return 0;
+}
+static int bt_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	pwm_32KHZ_control(0);
+	if(src_32K<4)
+	  realease_pwm();
+	printk("bt_suspend");
+	return 0;
+}
+static int bt_resume(struct platform_device *pdev)
+{
+	pwm_32KHZ_control(1);
+	printk("bt_resume");
+	return 0;
+	
+}
+
+static struct platform_driver bt_driver = {
+	.driver		= {
+		.name	= DRV_NAME,
+		.owner = THIS_MODULE,
+	},
+	.probe		= bt_probe,
+	.remove		= bt_remove,
+	.suspend    = bt_suspend,
+	.resume     = bt_resume,
+};
+
+static void bt_device_release(struct device * dev) {}
+
+static struct platform_device device_bluetooth = {
+	.name             = DRV_NAME,
+	.id               = -1,
+	.dev = {
+		.release = bt_device_release,
+	}
+};
+
+static int __init bt_init(void)
+{
+	platform_device_register(&device_bluetooth);
+	return platform_driver_register(&bt_driver);
+}
+
+static void __exit bt_exit(void)
+{
+	platform_driver_unregister(&bt_driver);
+	platform_device_unregister(&device_bluetooth);
+}
+
+module_init(bt_init);
+module_exit(bt_exit);
+
+MODULE_AUTHOR("RubbitXiao RubbitXiao@wondermedia.com.cn");
+MODULE_DESCRIPTION("Driver for the common wondermedia bluetooth chip");
+MODULE_LICENSE("GPL");