Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

19 files changed, 9187 insertions, 0 deletions

diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
new file mode 100644
index 00000000000..543f93e0f23
--- /dev/null
+++ b/drivers/bluetooth/Kconfig
@@ -0,0 +1,168 @@
+
+menu "Bluetooth device drivers"
+	depends on BT
+
+config BT_HCIUSB
+	tristate "HCI USB driver"
+	depends on USB
+	help
+	  Bluetooth HCI USB driver.
+	  This driver is required if you want to use Bluetooth devices with
+	  USB interface.
+
+	  Say Y here to compile support for Bluetooth USB devices into the
+	  kernel or say M to compile it as module (hci_usb).
+
+config BT_HCIUSB_SCO
+	bool "SCO (voice) support"
+	depends on BT_HCIUSB
+	help
+	  This option enables the SCO support in the HCI USB driver. You need this
+	  to transmit voice data with your Bluetooth USB device.
+
+	  Say Y here to compile support for SCO over HCI USB.
+
+config BT_HCIUART
+	tristate "HCI UART driver"
+	help
+	  Bluetooth HCI UART driver.
+	  This driver is required if you want to use Bluetooth devices with
+	  serial port interface. You will also need this driver if you have 
+	  UART based Bluetooth PCMCIA and CF devices like Xircom Credit Card 
+	  adapter and BrainBoxes Bluetooth PC Card.
+
+	  Say Y here to compile support for Bluetooth UART devices into the
+	  kernel or say M to compile it as module (hci_uart).
+
+config BT_HCIUART_H4
+	bool "UART (H4) protocol support"
+	depends on BT_HCIUART
+	help
+	  UART (H4) is serial protocol for communication between Bluetooth 
+	  device and host. This protocol is required for most Bluetooth devices 
+	  with UART interface, including PCMCIA and CF cards. 
+
+	  Say Y here to compile support for HCI UART (H4) protocol.
+
+config BT_HCIUART_BCSP
+	bool "BCSP protocol support"
+	depends on BT_HCIUART
+	help
+	  BCSP (BlueCore Serial Protocol) is serial protocol for communication 
+	  between Bluetooth device and host. This protocol is required for non
+	  USB Bluetooth devices based on CSR BlueCore chip, including PCMCIA and
+	  CF cards.
+
+	  Say Y here to compile support for HCI BCSP protocol.
+
+config BT_HCIUART_BCSP_TXCRC
+	bool "Transmit CRC with every BCSP packet"
+	depends on BT_HCIUART_BCSP
+	help
+	  If you say Y here, a 16-bit CRC checksum will be transmitted along with
+	  every BCSP (BlueCore Serial Protocol) packet sent to the Bluetooth chip.
+	  This increases reliability, but slightly reduces efficiency.
+
+config BT_HCIBCM203X
+	tristate "HCI BCM203x USB driver"
+	depends on USB
+	select FW_LOADER
+	help
+	  Bluetooth HCI BCM203x USB driver.
+	  This driver provides the firmware loading mechanism for the Broadcom
+	  Blutonium based devices.
+
+	  Say Y here to compile support for HCI BCM203x devices into the
+	  kernel or say M to compile it as module (bcm203x).
+
+config BT_HCIBPA10X
+	tristate "HCI BPA10x USB driver"
+	depends on USB
+	help
+	  Bluetooth HCI BPA10x USB driver.
+	  This driver provides support for the Digianswer BPA 100/105 Bluetooth
+	  sniffer devices.
+
+	  Say Y here to compile support for HCI BPA10x devices into the
+	  kernel or say M to compile it as module (bpa10x).
+
+config BT_HCIBFUSB
+	tristate "HCI BlueFRITZ! USB driver"
+	depends on USB
+	select FW_LOADER
+	help
+	  Bluetooth HCI BlueFRITZ! USB driver.
+	  This driver provides support for Bluetooth USB devices with AVM
+	  interface:
+	     AVM BlueFRITZ! USB
+
+	  Say Y here to compile support for HCI BFUSB devices into the
+	  kernel or say M to compile it as module (bfusb).
+
+config BT_HCIDTL1
+	tristate "HCI DTL1 (PC Card) driver"
+	depends on PCMCIA
+	help
+	  Bluetooth HCI DTL1 (PC Card) driver.
+	  This driver provides support for Bluetooth PCMCIA devices with
+	  Nokia DTL1 interface:
+	     Nokia Bluetooth Card
+	     Socket Bluetooth CF Card
+
+	  Say Y here to compile support for HCI DTL1 devices into the
+	  kernel or say M to compile it as module (dtl1_cs).
+
+config BT_HCIBT3C
+	tristate "HCI BT3C (PC Card) driver"
+	depends on PCMCIA
+	select FW_LOADER
+	help
+	  Bluetooth HCI BT3C (PC Card) driver.
+	  This driver provides support for Bluetooth PCMCIA devices with
+	  3Com BT3C interface:
+	     3Com Bluetooth Card (3CRWB6096)
+	     HP Bluetooth Card
+
+	  Say Y here to compile support for HCI BT3C devices into the
+	  kernel or say M to compile it as module (bt3c_cs).
+
+config BT_HCIBLUECARD
+	tristate "HCI BlueCard (PC Card) driver"
+	depends on PCMCIA
+	help
+	  Bluetooth HCI BlueCard (PC Card) driver.
+	  This driver provides support for Bluetooth PCMCIA devices with
+	  Anycom BlueCard interface:
+	     Anycom Bluetooth PC Card
+	     Anycom Bluetooth CF Card
+
+	  Say Y here to compile support for HCI BlueCard devices into the
+	  kernel or say M to compile it as module (bluecard_cs).
+
+config BT_HCIBTUART
+	tristate "HCI UART (PC Card) device driver"
+	depends on PCMCIA
+	help
+	  Bluetooth HCI UART (PC Card) driver.
+	  This driver provides support for Bluetooth PCMCIA devices with
+	  an UART interface:
+	     Xircom CreditCard Bluetooth Adapter
+	     Xircom RealPort2 Bluetooth Adapter
+	     Sphinx PICO Card
+	     H-Soft blue+Card
+	     Cyber-blue Compact Flash Card
+
+	  Say Y here to compile support for HCI UART devices into the
+	  kernel or say M to compile it as module (btuart_cs).
+
+config BT_HCIVHCI
+	tristate "HCI VHCI (Virtual HCI device) driver"
+	help
+	  Bluetooth Virtual HCI device driver.
+	  This driver is required if you want to use HCI Emulation software.
+
+	  Say Y here to compile support for virtual HCI devices into the
+	  kernel or say M to compile it as module (hci_vhci).
+
+endmenu
+
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
new file mode 100644
index 00000000000..08c10e178e0
--- /dev/null
+++ b/drivers/bluetooth/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile for the Linux Bluetooth HCI device drivers.
+#
+
+obj-$(CONFIG_BT_HCIUSB)		+= hci_usb.o
+obj-$(CONFIG_BT_HCIVHCI)	+= hci_vhci.o
+obj-$(CONFIG_BT_HCIUART)	+= hci_uart.o
+obj-$(CONFIG_BT_HCIBCM203X)	+= bcm203x.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
+
+hci_uart-y				:= hci_ldisc.o
+hci_uart-$(CONFIG_BT_HCIUART_H4)	+= hci_h4.o
+hci_uart-$(CONFIG_BT_HCIUART_BCSP)	+= hci_bcsp.o
+hci_uart-objs				:= $(hci_uart-y)
diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c
new file mode 100644
index 00000000000..5fd3e4cb752
--- /dev/null
+++ b/drivers/bluetooth/bcm203x.c
@@ -0,0 +1,314 @@
+/*
+ *
+ *  Broadcom Blutonium firmware driver
+ *
+ *  Copyright (C) 2003  Maxim Krasnyansky <maxk@qualcomm.com>
+ *  Copyright (C) 2003  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  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/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/timer.h>
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+
+#include <linux/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+
+#ifndef CONFIG_BT_HCIBCM203X_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#endif
+
+#define VERSION "1.0"
+
+static int ignore = 0;
+
+static struct usb_device_id bcm203x_table[] = {
+	/* Broadcom Blutonium (BCM2033) */
+	{ USB_DEVICE(0x0a5c, 0x2033) },
+
+	{ }	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, bcm203x_table);
+
+#define BCM203X_ERROR		0
+#define BCM203X_RESET		1
+#define BCM203X_LOAD_MINIDRV	2
+#define BCM203X_SELECT_MEMORY	3
+#define BCM203X_CHECK_MEMORY	4
+#define BCM203X_LOAD_FIRMWARE	5
+#define BCM203X_CHECK_FIRMWARE	6
+
+#define BCM203X_IN_EP		0x81
+#define BCM203X_OUT_EP		0x02
+
+struct bcm203x_data {
+	struct usb_device	*udev;
+
+	unsigned long		state;
+
+	struct timer_list	timer;
+
+	struct urb		*urb;
+	unsigned char		*buffer;
+
+	unsigned char		*fw_data;
+	unsigned int		fw_size;
+	unsigned int		fw_sent;
+};
+
+static void bcm203x_complete(struct urb *urb, struct pt_regs *regs)
+{
+	struct bcm203x_data *data = urb->context;
+	struct usb_device *udev = urb->dev;
+	int len;
+
+	BT_DBG("udev %p urb %p", udev, urb);
+
+	if (urb->status) {
+		BT_ERR("URB failed with status %d", urb->status);
+		data->state = BCM203X_ERROR;
+		return;
+	}
+
+	switch (data->state) {
+	case BCM203X_LOAD_MINIDRV:
+		memcpy(data->buffer, "#", 1);
+
+		usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
+				data->buffer, 1, bcm203x_complete, data);
+
+		data->state = BCM203X_SELECT_MEMORY;
+
+		mod_timer(&data->timer, jiffies + (HZ / 10));
+		break;
+
+	case BCM203X_SELECT_MEMORY:
+		usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),
+				data->buffer, 32, bcm203x_complete, data, 1);
+
+		data->state = BCM203X_CHECK_MEMORY;
+
+		if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
+			BT_ERR("Can't submit URB");
+		break;
+
+	case BCM203X_CHECK_MEMORY:
+		if (data->buffer[0] != '#') {
+			BT_ERR("Memory select failed");
+			data->state = BCM203X_ERROR;
+			break;
+		}
+
+		data->state = BCM203X_LOAD_FIRMWARE;
+
+	case BCM203X_LOAD_FIRMWARE:
+		if (data->fw_sent == data->fw_size) {
+			usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),
+				data->buffer, 32, bcm203x_complete, data, 1);
+
+			data->state = BCM203X_CHECK_FIRMWARE;
+		} else {
+			len = min_t(uint, data->fw_size - data->fw_sent, 4096);
+
+			usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
+				data->fw_data + data->fw_sent, len, bcm203x_complete, data);
+
+			data->fw_sent += len;
+		}
+
+		if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
+			BT_ERR("Can't submit URB");
+		break;
+
+	case BCM203X_CHECK_FIRMWARE:
+		if (data->buffer[0] != '.') {
+			BT_ERR("Firmware loading failed");
+			data->state = BCM203X_ERROR;
+			break;
+		}
+
+		data->state = BCM203X_RESET;
+		break;
+	}
+}
+
+static void bcm203x_timer(unsigned long user_data)
+{
+	struct bcm203x_data *data = (struct bcm203x_data *) user_data;
+
+	if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0)
+		BT_ERR("Can't submit URB");
+}
+
+static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	const struct firmware *firmware;
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct bcm203x_data *data;
+	int size;
+
+	BT_DBG("intf %p id %p", intf, id);
+
+	if (ignore || (intf->cur_altsetting->desc.bInterfaceNumber != 0))
+		return -ENODEV;
+
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		BT_ERR("Can't allocate memory for data structure");
+		return -ENOMEM;
+	}
+
+	memset(data, 0, sizeof(*data));
+
+	data->udev  = udev;
+	data->state = BCM203X_LOAD_MINIDRV;
+
+	data->urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!data->urb) {
+		BT_ERR("Can't allocate URB");
+		kfree(data);
+		return -ENOMEM;
+	}
+
+	if (request_firmware(&firmware, "BCM2033-MD.hex", &udev->dev) < 0) {
+		BT_ERR("Mini driver request failed");
+		usb_free_urb(data->urb);
+		kfree(data);
+		return -EIO;
+	}
+
+	BT_DBG("minidrv data %p size %d", firmware->data, firmware->size);
+
+	size = max_t(uint, firmware->size, 4096);
+
+	data->buffer = kmalloc(size, GFP_KERNEL);
+	if (!data->buffer) {
+		BT_ERR("Can't allocate memory for mini driver");
+		release_firmware(firmware);
+		usb_free_urb(data->urb);
+		kfree(data);
+		return -ENOMEM;
+	}
+
+	memcpy(data->buffer, firmware->data, firmware->size);
+
+	usb_fill_bulk_urb(data->urb, udev, usb_sndbulkpipe(udev, BCM203X_OUT_EP),
+			data->buffer, firmware->size, bcm203x_complete, data);
+
+	release_firmware(firmware);
+
+	if (request_firmware(&firmware, "BCM2033-FW.bin", &udev->dev) < 0) {
+		BT_ERR("Firmware request failed");
+		usb_free_urb(data->urb);
+		kfree(data->buffer);
+		kfree(data);
+		return -EIO;
+	}
+
+	BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
+
+	data->fw_data = kmalloc(firmware->size, GFP_KERNEL);
+	if (!data->fw_data) {
+		BT_ERR("Can't allocate memory for firmware image");
+		usb_free_urb(data->urb);
+		kfree(data->buffer);
+		kfree(data);
+		return -ENOMEM;
+	}
+
+	memcpy(data->fw_data, firmware->data, firmware->size);
+	data->fw_size = firmware->size;
+	data->fw_sent = 0;
+
+	release_firmware(firmware);
+
+	init_timer(&data->timer);
+	data->timer.function = bcm203x_timer;
+	data->timer.data = (unsigned long) data;
+
+	usb_set_intfdata(intf, data);
+
+	mod_timer(&data->timer, jiffies + HZ);
+
+	return 0;
+}
+
+static void bcm203x_disconnect(struct usb_interface *intf)
+{
+	struct bcm203x_data *data = usb_get_intfdata(intf);
+
+	BT_DBG("intf %p", intf);
+
+	usb_kill_urb(data->urb);
+
+	usb_set_intfdata(intf, NULL);
+
+	usb_free_urb(data->urb);
+	kfree(data->fw_data);
+	kfree(data->buffer);
+	kfree(data);
+}
+
+static struct usb_driver bcm203x_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "bcm203x",
+	.probe		= bcm203x_probe,
+	.disconnect	= bcm203x_disconnect,
+	.id_table	= bcm203x_table,
+};
+
+static int __init bcm203x_init(void)
+{
+	int err;
+
+	BT_INFO("Broadcom Blutonium firmware driver ver %s", VERSION);
+
+	err = usb_register(&bcm203x_driver);
+	if (err < 0)
+		BT_ERR("Failed to register USB driver");
+
+	return err;
+}
+
+static void __exit bcm203x_exit(void)
+{
+	usb_deregister(&bcm203x_driver);
+}
+
+module_init(bcm203x_init);
+module_exit(bcm203x_exit);
+
+module_param(ignore, bool, 0644);
+MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Broadcom Blutonium firmware driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
new file mode 100644
index 00000000000..c42d7e6ac1c
--- /dev/null
+++ b/drivers/bluetooth/bfusb.c
@@ -0,0 +1,806 @@
+/*
+ *
+ *  AVM BlueFRITZ! USB driver
+ *
+ *  Copyright (C) 2003  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  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/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.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/device.h>
+#include <linux/firmware.h>
+
+#include <linux/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#ifndef CONFIG_BT_HCIBFUSB_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#endif
+
+#define VERSION "1.1"
+
+static int ignore = 0;
+
+static struct usb_driver bfusb_driver;
+
+static struct usb_device_id bfusb_table[] = {
+	/* AVM BlueFRITZ! USB */
+	{ USB_DEVICE(0x057c, 0x2200) },
+
+	{ }	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, bfusb_table);
+
+
+#define BFUSB_MAX_BLOCK_SIZE	256
+
+#define BFUSB_BLOCK_TIMEOUT	3000
+
+#define BFUSB_TX_PROCESS	1
+#define BFUSB_TX_WAKEUP		2
+
+#define BFUSB_MAX_BULK_TX	2
+#define BFUSB_MAX_BULK_RX	2
+
+struct bfusb {
+	struct hci_dev		*hdev;
+
+	unsigned long		state;
+
+	struct usb_device	*udev;
+
+	unsigned int		bulk_in_ep;
+	unsigned int		bulk_out_ep;
+	unsigned int		bulk_pkt_size;
+
+	rwlock_t		lock;
+
+	struct sk_buff_head	transmit_q;
+
+	struct sk_buff		*reassembly;
+
+	atomic_t		pending_tx;
+	struct sk_buff_head	pending_q;
+	struct sk_buff_head	completed_q;
+};
+
+struct bfusb_scb {
+	struct urb *urb;
+};
+
+static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs);
+static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs);
+
+static struct urb *bfusb_get_completed(struct bfusb *bfusb)
+{
+	struct sk_buff *skb;
+	struct urb *urb = NULL;
+
+	BT_DBG("bfusb %p", bfusb);
+
+	skb = skb_dequeue(&bfusb->completed_q);
+	if (skb) {
+		urb = ((struct bfusb_scb *) skb->cb)->urb;
+		kfree_skb(skb);
+	}
+
+	return urb;
+}
+
+static void bfusb_unlink_urbs(struct bfusb *bfusb)
+{
+	struct sk_buff *skb;
+	struct urb *urb;
+
+	BT_DBG("bfusb %p", bfusb);
+
+	while ((skb = skb_dequeue(&bfusb->pending_q))) {
+		urb = ((struct bfusb_scb *) skb->cb)->urb;
+		usb_kill_urb(urb);
+		skb_queue_tail(&bfusb->completed_q, skb);
+	}
+
+	while ((urb = bfusb_get_completed(bfusb)))
+		usb_free_urb(urb);
+}
+
+
+static int bfusb_send_bulk(struct bfusb *bfusb, struct sk_buff *skb)
+{
+	struct bfusb_scb *scb = (void *) skb->cb;
+	struct urb *urb = bfusb_get_completed(bfusb);
+	int err, pipe;
+
+	BT_DBG("bfusb %p skb %p len %d", bfusb, skb, skb->len);
+
+	if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
+		return -ENOMEM;
+
+	pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
+
+	usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, skb->len,
+			bfusb_tx_complete, skb);
+
+	scb->urb = urb;
+
+	skb_queue_tail(&bfusb->pending_q, skb);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s bulk tx submit failed urb %p err %d", 
+					bfusb->hdev->name, urb, err);
+		skb_unlink(skb);
+		usb_free_urb(urb);
+	} else
+		atomic_inc(&bfusb->pending_tx);
+
+	return err;
+}
+
+static void bfusb_tx_wakeup(struct bfusb *bfusb)
+{
+	struct sk_buff *skb;
+
+	BT_DBG("bfusb %p", bfusb);
+
+	if (test_and_set_bit(BFUSB_TX_PROCESS, &bfusb->state)) {
+		set_bit(BFUSB_TX_WAKEUP, &bfusb->state);
+		return;
+	}
+
+	do {
+		clear_bit(BFUSB_TX_WAKEUP, &bfusb->state);
+
+		while ((atomic_read(&bfusb->pending_tx) < BFUSB_MAX_BULK_TX) &&
+				(skb = skb_dequeue(&bfusb->transmit_q))) {
+			if (bfusb_send_bulk(bfusb, skb) < 0) {
+				skb_queue_head(&bfusb->transmit_q, skb);
+				break;
+			}
+		}
+
+	} while (test_bit(BFUSB_TX_WAKEUP, &bfusb->state));
+
+	clear_bit(BFUSB_TX_PROCESS, &bfusb->state);
+}
+
+static void bfusb_tx_complete(struct urb *urb, struct pt_regs *regs)
+{
+	struct sk_buff *skb = (struct sk_buff *) urb->context;
+	struct bfusb *bfusb = (struct bfusb *) skb->dev;
+
+	BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
+
+	atomic_dec(&bfusb->pending_tx);
+
+	if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
+		return;
+
+	if (!urb->status)
+		bfusb->hdev->stat.byte_tx += skb->len;
+	else
+		bfusb->hdev->stat.err_tx++;
+
+	read_lock(&bfusb->lock);
+
+	skb_unlink(skb);
+	skb_queue_tail(&bfusb->completed_q, skb);
+
+	bfusb_tx_wakeup(bfusb);
+
+	read_unlock(&bfusb->lock);
+}
+
+
+static int bfusb_rx_submit(struct bfusb *bfusb, struct urb *urb)
+{
+	struct bfusb_scb *scb;
+	struct sk_buff *skb;
+	int err, pipe, size = HCI_MAX_FRAME_SIZE + 32;
+
+	BT_DBG("bfusb %p urb %p", bfusb, urb);
+
+	if (!urb && !(urb = usb_alloc_urb(0, GFP_ATOMIC)))
+		return -ENOMEM;
+
+	if (!(skb = bt_skb_alloc(size, GFP_ATOMIC))) {
+		usb_free_urb(urb);
+		return -ENOMEM;
+	}
+
+	skb->dev = (void *) bfusb;
+
+	scb = (struct bfusb_scb *) skb->cb;
+	scb->urb = urb;
+
+	pipe = usb_rcvbulkpipe(bfusb->udev, bfusb->bulk_in_ep);
+
+	usb_fill_bulk_urb(urb, bfusb->udev, pipe, skb->data, size,
+			bfusb_rx_complete, skb);
+
+	skb_queue_tail(&bfusb->pending_q, skb);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s bulk rx submit failed urb %p err %d",
+					bfusb->hdev->name, urb, err);
+		skb_unlink(skb);
+		kfree_skb(skb);
+		usb_free_urb(urb);
+	}
+
+	return err;
+}
+
+static inline int bfusb_recv_block(struct bfusb *bfusb, int hdr, unsigned char *data, int len)
+{
+	BT_DBG("bfusb %p hdr 0x%02x data %p len %d", bfusb, hdr, data, len);
+
+	if (hdr & 0x10) {
+		BT_ERR("%s error in block", bfusb->hdev->name);
+		if (bfusb->reassembly)
+			kfree_skb(bfusb->reassembly);
+		bfusb->reassembly = NULL;
+		return -EIO;
+	}
+
+	if (hdr & 0x04) {
+		struct sk_buff *skb;
+		unsigned char pkt_type;
+		int pkt_len = 0;
+
+		if (bfusb->reassembly) {
+			BT_ERR("%s unexpected start block", bfusb->hdev->name);
+			kfree_skb(bfusb->reassembly);
+			bfusb->reassembly = NULL;
+		}
+
+		if (len < 1) {
+			BT_ERR("%s no packet type found", bfusb->hdev->name);
+			return -EPROTO;
+		}
+
+		pkt_type = *data++; len--;
+
+		switch (pkt_type) {
+		case HCI_EVENT_PKT:
+			if (len >= HCI_EVENT_HDR_SIZE) {
+				struct hci_event_hdr *hdr = (struct hci_event_hdr *) data;
+				pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
+			} else {
+				BT_ERR("%s event block is too short", bfusb->hdev->name);
+				return -EILSEQ;
+			}
+			break;
+
+		case HCI_ACLDATA_PKT:
+			if (len >= HCI_ACL_HDR_SIZE) {
+				struct hci_acl_hdr *hdr = (struct hci_acl_hdr *) data;
+				pkt_len = HCI_ACL_HDR_SIZE + __le16_to_cpu(hdr->dlen);
+			} else {
+				BT_ERR("%s data block is too short", bfusb->hdev->name);
+				return -EILSEQ;
+			}
+			break;
+
+		case HCI_SCODATA_PKT:
+			if (len >= HCI_SCO_HDR_SIZE) {
+				struct hci_sco_hdr *hdr = (struct hci_sco_hdr *) data;
+				pkt_len = HCI_SCO_HDR_SIZE + hdr->dlen;
+			} else {
+				BT_ERR("%s audio block is too short", bfusb->hdev->name);
+				return -EILSEQ;
+			}
+			break;
+		}
+
+		skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
+		if (!skb) {
+			BT_ERR("%s no memory for the packet", bfusb->hdev->name);
+			return -ENOMEM;
+		}
+
+		skb->dev = (void *) bfusb->hdev;
+		skb->pkt_type = pkt_type;
+
+		bfusb->reassembly = skb;
+	} else {
+		if (!bfusb->reassembly) {
+			BT_ERR("%s unexpected continuation block", bfusb->hdev->name);
+			return -EIO;
+		}
+	}
+
+	if (len > 0)
+		memcpy(skb_put(bfusb->reassembly, len), data, len);
+
+	if (hdr & 0x08) {
+		hci_recv_frame(bfusb->reassembly);
+		bfusb->reassembly = NULL;
+	}
+
+	return 0;
+}
+
+static void bfusb_rx_complete(struct urb *urb, struct pt_regs *regs)
+{
+	struct sk_buff *skb = (struct sk_buff *) urb->context;
+	struct bfusb *bfusb = (struct bfusb *) skb->dev;
+	unsigned char *buf = urb->transfer_buffer;
+	int count = urb->actual_length;
+	int err, hdr, len;
+
+	BT_DBG("bfusb %p urb %p skb %p len %d", bfusb, urb, skb, skb->len);
+
+	read_lock(&bfusb->lock);
+
+	if (!test_bit(HCI_RUNNING, &bfusb->hdev->flags))
+		goto unlock;
+
+	if (urb->status || !count)
+		goto resubmit;
+
+	bfusb->hdev->stat.byte_rx += count;
+
+	skb_put(skb, count);
+
+	while (count) {
+		hdr = buf[0] | (buf[1] << 8);
+
+		if (hdr & 0x4000) {
+			len = 0;
+			count -= 2;
+			buf   += 2;
+		} else {
+			len = (buf[2] == 0) ? 256 : buf[2];
+			count -= 3;
+			buf   += 3;
+		}
+
+		if (count < len) {
+			BT_ERR("%s block extends over URB buffer ranges",
+					bfusb->hdev->name);
+		}
+
+		if ((hdr & 0xe1) == 0xc1)
+			bfusb_recv_block(bfusb, hdr, buf, len);
+
+		count -= len;
+		buf   += len;
+	}
+
+	skb_unlink(skb);
+	kfree_skb(skb);
+
+	bfusb_rx_submit(bfusb, urb);
+
+	read_unlock(&bfusb->lock);
+
+	return;
+
+resubmit:
+	urb->dev = bfusb->udev;
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s bulk resubmit failed urb %p err %d",
+					bfusb->hdev->name, urb, err);
+	}
+
+unlock:
+	read_unlock(&bfusb->lock);
+}
+
+
+static int bfusb_open(struct hci_dev *hdev)
+{
+	struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+	unsigned long flags;
+	int i, err;
+
+	BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+	if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	write_lock_irqsave(&bfusb->lock, flags);
+
+	err = bfusb_rx_submit(bfusb, NULL);
+	if (!err) {
+		for (i = 1; i < BFUSB_MAX_BULK_RX; i++)
+			bfusb_rx_submit(bfusb, NULL);
+	} else {
+		clear_bit(HCI_RUNNING, &hdev->flags);
+	}
+
+	write_unlock_irqrestore(&bfusb->lock, flags);
+
+	return err;
+}
+
+static int bfusb_flush(struct hci_dev *hdev)
+{
+	struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+
+	BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+	skb_queue_purge(&bfusb->transmit_q);
+
+	return 0;
+}
+
+static int bfusb_close(struct hci_dev *hdev)
+{
+	struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+	unsigned long flags;
+
+	BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	write_lock_irqsave(&bfusb->lock, flags);
+	write_unlock_irqrestore(&bfusb->lock, flags);
+
+	bfusb_unlink_urbs(bfusb);
+	bfusb_flush(hdev);
+
+	return 0;
+}
+
+static int bfusb_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+	struct bfusb *bfusb;
+	struct sk_buff *nskb;
+	unsigned char buf[3];
+	int sent = 0, size, count;
+
+	BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, skb->pkt_type, skb->len);
+
+	if (!hdev) {
+		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return -EBUSY;
+
+	bfusb = (struct bfusb *) hdev->driver_data;
+
+	switch (skb->pkt_type) {
+	case HCI_COMMAND_PKT:
+		hdev->stat.cmd_tx++;
+		break;
+	case HCI_ACLDATA_PKT:
+		hdev->stat.acl_tx++;
+		break;
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		break;
+	};
+
+	/* Prepend skb with frame type */
+	memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
+
+	count = skb->len;
+
+	/* Max HCI frame size seems to be 1511 + 1 */
+	if (!(nskb = bt_skb_alloc(count + 32, GFP_ATOMIC))) {
+		BT_ERR("Can't allocate memory for new packet");
+		return -ENOMEM;
+	}
+
+	nskb->dev = (void *) bfusb;
+
+	while (count) {
+		size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE);
+
+		buf[0] = 0xc1 | ((sent == 0) ? 0x04 : 0) | ((count == size) ? 0x08 : 0);
+		buf[1] = 0x00;
+		buf[2] = (size == BFUSB_MAX_BLOCK_SIZE) ? 0 : size;
+
+		memcpy(skb_put(nskb, 3), buf, 3);
+		memcpy(skb_put(nskb, size), skb->data + sent, size);
+
+		sent  += size;
+		count -= size;
+	}
+
+	/* Don't send frame with multiple size of bulk max packet */
+	if ((ns