Linux-2.6.12-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 0000000..543f93e
--- /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 0000000..08c10e1
--- /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 0000000..5fd3e4c
--- /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 0000000..c42d7e6
--- /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 ((nskb->len % bfusb->bulk_pkt_size) == 0) {
+		buf[0] = 0xdd;
+		buf[1] = 0x00;
+		memcpy(skb_put(nskb, 2), buf, 2);
+	}
+
+	read_lock(&bfusb->lock);
+
+	skb_queue_tail(&bfusb->transmit_q, nskb);
+	bfusb_tx_wakeup(bfusb);
+
+	read_unlock(&bfusb->lock);
+
+	kfree_skb(skb);
+
+	return 0;
+}
+
+static void bfusb_destruct(struct hci_dev *hdev)
+{
+	struct bfusb *bfusb = (struct bfusb *) hdev->driver_data;
+
+	BT_DBG("hdev %p bfusb %p", hdev, bfusb);
+
+	kfree(bfusb);
+}
+
+static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+static int bfusb_load_firmware(struct bfusb *bfusb, unsigned char *firmware, int count)
+{
+	unsigned char *buf;
+	int err, pipe, len, size, sent = 0;
+
+	BT_DBG("bfusb %p udev %p", bfusb, bfusb->udev);
+
+	BT_INFO("BlueFRITZ! USB loading firmware");
+
+	pipe = usb_sndctrlpipe(bfusb->udev, 0);
+
+	if (usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+				0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) {
+		BT_ERR("Can't change to loading configuration");
+		return -EBUSY;
+	}
+
+	bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
+
+	buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC);
+	if (!buf) {
+		BT_ERR("Can't allocate memory chunk for firmware");
+		return -ENOMEM;
+	}
+
+	pipe = usb_sndbulkpipe(bfusb->udev, bfusb->bulk_out_ep);
+
+	while (count) {
+		size = min_t(uint, count, BFUSB_MAX_BLOCK_SIZE + 3);
+
+		memcpy(buf, firmware + sent, size);
+
+		err = usb_bulk_msg(bfusb->udev, pipe, buf, size,
+					&len, BFUSB_BLOCK_TIMEOUT);
+
+		if (err || (len != size)) {
+			BT_ERR("Error in firmware loading");
+			goto error;
+		}
+
+		sent  += size;
+		count -= size;
+	}
+
+	if ((err = usb_bulk_msg(bfusb->udev, pipe, NULL, 0,
+				&len, BFUSB_BLOCK_TIMEOUT)) < 0) {
+		BT_ERR("Error in null packet request");
+		goto error;
+	}
+
+	pipe = usb_sndctrlpipe(bfusb->udev, 0);
+
+        if ((err = usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+				0, 2, 0, NULL, 0, USB_CTRL_SET_TIMEOUT)) < 0) {
+		BT_ERR("Can't change to running configuration");
+		goto error;
+	}
+
+	bfusb->udev->toggle[0] = bfusb->udev->toggle[1] = 0;
+
+	BT_INFO("BlueFRITZ! USB device ready");
+
+	kfree(buf);
+	return 0;
+
+error:
+	kfree(buf);
+
+	pipe = usb_sndctrlpipe(bfusb->udev, 0);
+
+	usb_control_msg(bfusb->udev, pipe, USB_REQ_SET_CONFIGURATION,
+				0, 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT);
+
+	return err;
+}
+
+static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	const struct firmware *firmware;
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_host_endpoint *bulk_out_ep;
+	struct usb_host_endpoint *bulk_in_ep;
+	struct hci_dev *hdev;
+	struct bfusb *bfusb;
+
+	BT_DBG("intf %p id %p", intf, id);
+
+	if (ignore)
+		return -ENODEV;
+
+	/* Check number of endpoints */
+	if (intf->cur_altsetting->desc.bNumEndpoints < 2)
+		return -EIO;
+
+	bulk_out_ep = &intf->cur_altsetting->endpoint[0];
+	bulk_in_ep  = &intf->cur_altsetting->endpoint[1];
+
+	if (!bulk_out_ep || !bulk_in_ep) {
+		BT_ERR("Bulk endpoints not found");
+		goto done;
+	}
+
+	/* Initialize control structure and load firmware */
+	if (!(bfusb = kmalloc(sizeof(struct bfusb), GFP_KERNEL))) {
+		BT_ERR("Can't allocate memory for control structure");
+		goto done;
+	}
+
+	memset(bfusb, 0, sizeof(struct bfusb));
+
+	bfusb->udev = udev;
+	bfusb->bulk_in_ep    = bulk_in_ep->desc.bEndpointAddress;
+	bfusb->bulk_out_ep   = bulk_out_ep->desc.bEndpointAddress;
+	bfusb->bulk_pkt_size = le16_to_cpu(bulk_out_ep->desc.wMaxPacketSize);
+
+	rwlock_init(&bfusb->lock);
+
+	bfusb->reassembly = NULL;
+
+	skb_queue_head_init(&bfusb->transmit_q);
+	skb_queue_head_init(&bfusb->pending_q);
+	skb_queue_head_init(&bfusb->completed_q);
+
+	if (request_firmware(&firmware, "bfubase.frm", &udev->dev) < 0) {
+		BT_ERR("Firmware request failed");
+		goto error;
+	}
+
+	BT_DBG("firmware data %p size %d", firmware->data, firmware->size);
+
+	if (bfusb_load_firmware(bfusb, firmware->data, firmware->size) < 0) {
+		BT_ERR("Firmware loading failed");
+		goto release;
+	}
+
+	release_firmware(firmware);
+
+	/* Initialize and register HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		goto error;
+	}
+
+	bfusb->hdev = hdev;
+
+	hdev->type = HCI_USB;
+	hdev->driver_data = bfusb;
+	SET_HCIDEV_DEV(hdev, &intf->dev);
+
+	hdev->open     = bfusb_open;
+	hdev->close    = bfusb_close;
+	hdev->flush    = bfusb_flush;
+	hdev->send     = bfusb_send_frame;
+	hdev->destruct = bfusb_destruct;
+	hdev->ioctl    = bfusb_ioctl;
+
+	hdev->owner = THIS_MODULE;
+
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		hci_free_dev(hdev);
+		goto error;
+	}
+
+	usb_set_intfdata(intf, bfusb);
+
+	return 0;
+
+release:
+	release_firmware(firmware);
+
+error:
+	kfree(bfusb);
+
+done:
+	return -EIO;
+}
+
+static void bfusb_disconnect(struct usb_interface *intf)
+{
+	struct bfusb *bfusb = usb_get_intfdata(intf);
+	struct hci_dev *hdev = bfusb->hdev;
+
+	BT_DBG("intf %p", intf);
+
+	if (!hdev)
+		return;
+
+	usb_set_intfdata(intf, NULL);
+
+	bfusb_close(hdev);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+}
+
+static struct usb_driver bfusb_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "bfusb",
+	.probe		= bfusb_probe,
+	.disconnect	= bfusb_disconnect,
+	.id_table	= bfusb_table,
+};
+
+static int __init bfusb_init(void)
+{
+	int err;
+
+	BT_INFO("BlueFRITZ! USB driver ver %s", VERSION);
+
+	if ((err = usb_register(&bfusb_driver)) < 0)
+		BT_ERR("Failed to register BlueFRITZ! USB driver");
+
+	return err;
+}
+
+static void __exit bfusb_exit(void)
+{
+	usb_deregister(&bfusb_driver);
+}
+
+module_init(bfusb_init);
+module_exit(bfusb_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("BlueFRITZ! USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
new file mode 100644
index 0000000..e481cc4
--- /dev/null
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -0,0 +1,1114 @@
+/*
+ *
+ *  Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)
+ *
+ *  Copyright (C) 2001-2002  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 version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  Software distributed under the License is distributed on an "AS
+ *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *  implied. See the License for the specific language governing
+ *  rights and limitations under the License.
+ *
+ *  The initial developer of the original code is David A. Hinds
+ *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ */
+
+#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/delay.h>
+#include <linux/timer.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+#include <linux/wait.h>
+
+#include <linux/skbuff.h>
+#include <asm/io.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+
+
+/* ======================== Module parameters ======================== */
+
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct bluecard_info_t {
+	dev_link_t link;
+	dev_node_t node;
+
+	struct hci_dev *hdev;
+
+	spinlock_t lock;		/* For serializing operations */
+	struct timer_list timer;	/* For LED control */
+
+	struct sk_buff_head txq;
+	unsigned long tx_state;
+
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+
+	unsigned char ctrl_reg;
+	unsigned long hw_state;		/* Status of the hardware and LED control */
+} bluecard_info_t;
+
+
+static void bluecard_config(dev_link_t *link);
+static void bluecard_release(dev_link_t *link);
+static int bluecard_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "bluecard_cs";
+
+static dev_link_t *bluecard_attach(void);
+static void bluecard_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+
+/* Default baud rate: 57600, 115200, 230400 or 460800 */
+#define DEFAULT_BAUD_RATE  230400
+
+
+/* Hardware states */
+#define CARD_READY             1
+#define CARD_HAS_PCCARD_ID     4
+#define CARD_HAS_POWER_LED     5
+#define CARD_HAS_ACTIVITY_LED  6
+
+/* Transmit states  */
+#define XMIT_SENDING         1
+#define XMIT_WAKEUP          2
+#define XMIT_BUFFER_NUMBER   5	/* unset = buffer one, set = buffer two */
+#define XMIT_BUF_ONE_READY   6
+#define XMIT_BUF_TWO_READY   7
+#define XMIT_SENDING_READY   8
+
+/* Receiver states */
+#define RECV_WAIT_PACKET_TYPE   0
+#define RECV_WAIT_EVENT_HEADER  1
+#define RECV_WAIT_ACL_HEADER    2
+#define RECV_WAIT_SCO_HEADER    3
+#define RECV_WAIT_DATA          4
+
+/* Special packet types */
+#define PKT_BAUD_RATE_57600   0x80
+#define PKT_BAUD_RATE_115200  0x81
+#define PKT_BAUD_RATE_230400  0x82
+#define PKT_BAUD_RATE_460800  0x83
+
+
+/* These are the register offsets */
+#define REG_COMMAND     0x20
+#define REG_INTERRUPT   0x21
+#define REG_CONTROL     0x22
+#define REG_RX_CONTROL  0x24
+#define REG_CARD_RESET  0x30
+#define REG_LED_CTRL    0x30
+
+/* REG_COMMAND */
+#define REG_COMMAND_TX_BUF_ONE  0x01
+#define REG_COMMAND_TX_BUF_TWO  0x02
+#define REG_COMMAND_RX_BUF_ONE  0x04
+#define REG_COMMAND_RX_BUF_TWO  0x08
+#define REG_COMMAND_RX_WIN_ONE  0x00
+#define REG_COMMAND_RX_WIN_TWO  0x10
+
+/* REG_CONTROL */
+#define REG_CONTROL_BAUD_RATE_57600   0x00
+#define REG_CONTROL_BAUD_RATE_115200  0x01
+#define REG_CONTROL_BAUD_RATE_230400  0x02
+#define REG_CONTROL_BAUD_RATE_460800  0x03
+#define REG_CONTROL_RTS               0x04
+#define REG_CONTROL_BT_ON             0x08
+#define REG_CONTROL_BT_RESET          0x10
+#define REG_CONTROL_BT_RES_PU         0x20
+#define REG_CONTROL_INTERRUPT         0x40
+#define REG_CONTROL_CARD_RESET        0x80
+
+/* REG_RX_CONTROL */
+#define RTS_LEVEL_SHIFT_BITS  0x02
+
+
+
+/* ======================== LED handling routines ======================== */
+
+
+static void bluecard_activity_led_timeout(u_long arg)
+{
+	bluecard_info_t *info = (bluecard_info_t *)arg;
+	unsigned int iobase = info->link.io.BasePort1;
+
+	if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
+		return;
+
+	if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
+		/* Disable activity LED */
+		outb(0x08 | 0x20, iobase + 0x30);
+	} else {
+		/* Disable power LED */
+		outb(0x00, iobase + 0x30);
+	}
+}
+
+
+static void bluecard_enable_activity_led(bluecard_info_t *info)
+{
+	unsigned int iobase = info->link.io.BasePort1;
+
+	if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
+		return;
+
+	if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
+		/* Enable activity LED */
+		outb(0x10 | 0x40, iobase + 0x30);
+
+		/* Stop the LED after HZ/4 */
+		mod_timer(&(info->timer), jiffies + HZ / 4);
+	} else {
+		/* Enable power LED */
+		outb(0x08 | 0x20, iobase + 0x30);
+
+		/* Stop the LED after HZ/2 */
+		mod_timer(&(info->timer), jiffies + HZ / 2);
+	}
+}
+
+
+
+/* ======================== Interrupt handling ======================== */
+
+
+static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len)
+{
+	int i, actual;
+
+	actual = (len > 15) ? 15 : len;
+
+	outb_p(actual, iobase + offset);
+
+	for (i = 0; i < actual; i++)
+		outb_p(buf[i], iobase + offset + i + 1);
+
+	return actual;
+}
+
+
+static void bluecard_write_wakeup(bluecard_info_t *info)
+{
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	if (!test_bit(XMIT_SENDING_READY, &(info->tx_state)))
+		return;
+
+	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+		return;
+	}
+
+	do {
+		register unsigned int iobase = info->link.io.BasePort1;
+		register unsigned int offset;
+		register unsigned char command;
+		register unsigned long ready_bit;
+		register struct sk_buff *skb;
+		register int len;
+
+		clear_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (!(info->link.state & DEV_PRESENT))
+			return;
+
+		if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) {
+			if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state)))
+				break;
+			offset = 0x10;
+			command = REG_COMMAND_TX_BUF_TWO;
+			ready_bit = XMIT_BUF_TWO_READY;
+		} else {
+			if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state)))
+				break;
+			offset = 0x00;
+			command = REG_COMMAND_TX_BUF_ONE;
+			ready_bit = XMIT_BUF_ONE_READY;
+		}
+
+		if (!(skb = skb_dequeue(&(info->txq))))
+			break;
+
+		if (skb->pkt_type & 0x80) {
+			/* Disable RTS */
+			info->ctrl_reg |= REG_CONTROL_RTS;
+			outb(info->ctrl_reg, iobase + REG_CONTROL);
+		}
+
+		/* Activate LED */
+		bluecard_enable_activity_led(info);
+
+		/* Send frame */
+		len = bluecard_write(iobase, offset, skb->data, skb->len);
+
+		/* Tell the FPGA to send the data */
+		outb_p(command, iobase + REG_COMMAND);
+
+		/* Mark the buffer as dirty */
+		clear_bit(ready_bit, &(info->tx_state));
+
+		if (skb->pkt_type & 0x80) {
+			DECLARE_WAIT_QUEUE_HEAD(wq);
+			DEFINE_WAIT(wait);
+
+			unsigned char baud_reg;
+
+			switch (skb->pkt_type) {
+			case PKT_BAUD_RATE_460800:
+				baud_reg = REG_CONTROL_BAUD_RATE_460800;
+				break;
+			case PKT_BAUD_RATE_230400:
+				baud_reg = REG_CONTROL_BAUD_RATE_230400;
+				break;
+			case PKT_BAUD_RATE_115200:
+				baud_reg = REG_CONTROL_BAUD_RATE_115200;
+				break;
+			case PKT_BAUD_RATE_57600:
+				/* Fall through... */
+			default:
+				baud_reg = REG_CONTROL_BAUD_RATE_57600;
+				break;
+			}
+
+			/* Wait until the command reaches the baseband */
+			prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
+			schedule_timeout(HZ/10);
+			finish_wait(&wq, &wait);
+
+			/* Set baud on baseband */
+			info->ctrl_reg &= ~0x03;
+			info->ctrl_reg |= baud_reg;
+			outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+			/* Enable RTS */
+			info->ctrl_reg &= ~REG_CONTROL_RTS;
+			outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+			/* Wait before the next HCI packet can be send */
+			prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
+			schedule_timeout(HZ);
+			finish_wait(&wq, &wait);
+		}
+
+		if (len == skb->len) {
+			kfree_skb(skb);
+		} else {
+			skb_pull(skb, len);
+			skb_queue_head(&(info->txq), skb);
+		}
+
+		info->hdev->stat.byte_tx += len;
+
+		/* Change buffer */
+		change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state));
+
+	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
+
+	clear_bit(XMIT_SENDING, &(info->tx_state));
+}
+
+
+static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size)
+{
+	int i, n, len;
+
+	outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND);
+
+	len = inb(iobase + offset);
+	n = 0;
+	i = 1;
+
+	while (n < len) {
+
+		if (i == 16) {
+			outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND);
+			i = 0;
+		}
+
+		buf[n] = inb(iobase + offset + i);
+
+		n++;
+		i++;
+
+	}
+
+	return len;
+}
+
+
+static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
+{
+	unsigned int iobase;
+	unsigned char buf[31];
+	int i, len;
+
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	if (test_bit(XMIT_SENDING_READY, &(info->tx_state)))
+		bluecard_enable_activity_led(info);
+
+	len = bluecard_read(iobase, offset, buf, sizeof(buf));
+
+	for (i = 0; i < len; i++) {
+
+		/* Allocate packet */
+		if (info->rx_skb == NULL) {
+			info->rx_state = RECV_WAIT_PACKET_TYPE;
+			info->rx_count = 0;
+			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+				BT_ERR("Can't allocate mem for new packet");
+				return;
+			}
+		}
+
+		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
+
+			info->rx_skb->dev = (void *) info->hdev;
+			info->rx_skb->pkt_type = buf[i];
+
+			switch (info->rx_skb->pkt_type) {
+
+			case 0x00:
+				/* init packet */
+				if (offset != 0x00) {
+					set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
+					set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
+					set_bit(XMIT_SENDING_READY, &(info->tx_state));
+					bluecard_write_wakeup(info);
+				}
+
+				kfree_skb(info->rx_skb);
+				info->rx_skb = NULL;
+				break;
+
+			case HCI_EVENT_PKT:
+				info->rx_state = RECV_WAIT_EVENT_HEADER;
+				info->rx_count = HCI_EVENT_HDR_SIZE;
+				break;
+
+			case HCI_ACLDATA_PKT:
+				info->rx_state = RECV_WAIT_ACL_HEADER;
+				info->rx_count = HCI_ACL_HDR_SIZE;
+				break;
+
+			case HCI_SCODATA_PKT:
+				info->rx_state = RECV_WAIT_SCO_HEADER;
+				info->rx_count = HCI_SCO_HDR_SIZE;
+				break;
+
+			default:
+				/* unknown packet */
+				BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
+				info->hdev->stat.err_rx++;
+
+				kfree_skb(info->rx_skb);
+				info->rx_skb = NULL;
+				break;
+
+			}
+
+		} else {
+
+			*skb_put(info->rx_skb, 1) = buf[i];
+			info->rx_count--;
+
+			if (info->rx_count == 0) {
+
+				int dlen;
+				struct hci_event_hdr *eh;
+				struct hci_acl_hdr *ah;
+				struct hci_sco_hdr *sh;
+
+				switch (info->rx_state) {
+
+				case RECV_WAIT_EVENT_HEADER:
+					eh = (struct hci_event_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = eh->plen;
+					break;
+
+				case RECV_WAIT_ACL_HEADER:
+					ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+					dlen = __le16_to_cpu(ah->dlen);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = dlen;
+					break;
+
+				case RECV_WAIT_SCO_HEADER:
+					sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = sh->dlen;
+					break;
+
+				case RECV_WAIT_DATA:
+					hci_recv_frame(info->rx_skb);
+					info->rx_skb = NULL;
+					break;
+
+				}
+
+			}
+
+		}
+
+
+	}
+
+	info->hdev->stat.byte_rx += len;
+}
+
+
+static irqreturn_t bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+	bluecard_info_t *info = dev_inst;
+	unsigned int iobase;
+	unsigned char reg;
+
+	if (!info || !info->hdev) {
+		BT_ERR("Call of irq %d for unknown device", irq);
+		return IRQ_NONE;
+	}
+
+	if (!test_bit(CARD_READY, &(info->hw_state)))
+		return IRQ_HANDLED;
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock(&(info->lock));
+
+	/* Disable interrupt */
+	info->ctrl_reg &= ~REG_CONTROL_INTERRUPT;
+	outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+	reg = inb(iobase + REG_INTERRUPT);
+
+	if ((reg != 0x00) && (reg != 0xff)) {
+
+		if (reg & 0x04) {
+			bluecard_receive(info, 0x00);
+			outb(0x04, iobase + REG_INTERRUPT);
+			outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
+		}
+
+		if (reg & 0x08) {
+			bluecard_receive(info, 0x10);
+			outb(0x08, iobase + REG_INTERRUPT);
+			outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
+		}
+
+		if (reg & 0x01) {
+			set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
+			outb(0x01, iobase + REG_INTERRUPT);
+			bluecard_write_wakeup(info);
+		}
+
+		if (reg & 0x02) {
+			set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
+			outb(0x02, iobase + REG_INTERRUPT);
+			bluecard_write_wakeup(info);
+		}
+
+	}
+
+	/* Enable interrupt */
+	info->ctrl_reg |= REG_CONTROL_INTERRUPT;
+	outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
+}
+
+
+
+/* ======================== Device specific HCI commands ======================== */
+
+
+static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
+{
+	bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+	struct sk_buff *skb;
+
+	/* Ericsson baud rate command */
+	unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
+
+	if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+		BT_ERR("Can't allocate mem for new packet");
+		return -1;
+	}
+
+	switch (baud) {
+	case 460800:
+		cmd[4] = 0x00;
+		skb->pkt_type = PKT_BAUD_RATE_460800;
+		break;
+	case 230400:
+		cmd[4] = 0x01;
+		skb->pkt_type = PKT_BAUD_RATE_230400;
+		break;
+	case 115200:
+		cmd[4] = 0x02;
+		skb->pkt_type = PKT_BAUD_RATE_115200;
+		break;
+	case 57600:
+		/* Fall through... */
+	default:
+		cmd[4] = 0x03;
+		skb->pkt_type = PKT_BAUD_RATE_57600;
+		break;
+	}
+
+	memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
+
+	skb_queue_tail(&(info->txq), skb);
+
+	bluecard_write_wakeup(info);
+
+	return 0;
+}
+
+
+
+/* ======================== HCI interface ======================== */
+
+
+static int bluecard_hci_flush(struct hci_dev *hdev)
+{
+	bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	return 0;
+}
+
+
+static int bluecard_hci_open(struct hci_dev *hdev)
+{
+	bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+	unsigned int iobase = info->link.io.BasePort1;
+
+	if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
+		bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
+
+	if (test_and_set_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
+		/* Enable LED */
+		outb(0x08 | 0x20, iobase + 0x30);
+	}
+
+	return 0;
+}
+
+
+static int bluecard_hci_close(struct hci_dev *hdev)
+{
+	bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
+	unsigned int iobase = info->link.io.BasePort1;
+
+	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	bluecard_hci_flush(hdev);
+
+	if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
+		/* Disable LED */
+		outb(0x00, iobase + 0x30);
+	}
+
+	return 0;
+}
+
+
+static int bluecard_hci_send_frame(struct sk_buff *skb)
+{
+	bluecard_info_t *info;
+	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+
+	if (!hdev) {
+		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	info = (bluecard_info_t *)(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);
+	skb_queue_tail(&(info->txq), skb);
+
+	bluecard_write_wakeup(info);
+
+	return 0;
+}
+
+
+static void bluecard_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+static int bluecard_open(bluecard_info_t *info)
+{
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev;
+	unsigned char id;
+
+	spin_lock_init(&(info->lock));
+
+	init_timer(&(info->timer));
+	info->timer.function = &bluecard_activity_led_timeout;
+	info->timer.data = (u_long)info;
+
+	skb_queue_head_init(&(info->txq));
+
+	info->rx_state = RECV_WAIT_PACKET_TYPE;
+	info->rx_count = 0;
+	info->rx_skb = NULL;
+
+	/* Initialize HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		return -ENOMEM;
+	}
+
+	info->hdev = hdev;
+
+	hdev->type = HCI_PCCARD;
+	hdev->driver_data = info;
+
+	hdev->open     = bluecard_hci_open;
+	hdev->close    = bluecard_hci_close;
+	hdev->flush    = bluecard_hci_flush;
+	hdev->send     = bluecard_hci_send_frame;
+	hdev->destruct = bluecard_hci_destruct;
+	hdev->ioctl    = bluecard_hci_ioctl;
+
+	hdev->owner = THIS_MODULE;
+
+	id = inb(iobase + 0x30);
+
+	if ((id & 0x0f) == 0x02)
+		set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state));
+
+	if (id & 0x10)
+		set_bit(CARD_HAS_POWER_LED, &(info->hw_state));
+
+	if (id & 0x20)
+		set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state));
+
+	/* Reset card */
+	info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
+	outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+	/* Turn FPGA off */
+	outb(0x80, iobase + 0x30);
+
+	/* Wait some time */
+	msleep(10);
+
+	/* Turn FPGA on */
+	outb(0x00, iobase + 0x30);
+
+	/* Activate card */
+	info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU;
+	outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+	/* Enable interrupt */
+	outb(0xff, iobase + REG_INTERRUPT);
+	info->ctrl_reg |= REG_CONTROL_INTERRUPT;
+	outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+	if ((id & 0x0f) == 0x03) {
+		/* Disable RTS */
+		info->ctrl_reg |= REG_CONTROL_RTS;
+		outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+		/* Set baud rate */
+		info->ctrl_reg |= 0x03;
+		outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+		/* Enable RTS */
+		info->ctrl_reg &= ~REG_CONTROL_RTS;
+		outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+		set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
+		set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
+		set_bit(XMIT_SENDING_READY, &(info->tx_state));
+	}
+
+	/* Start the RX buffers */
+	outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
+	outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
+
+	/* Signal that the hardware is ready */
+	set_bit(CARD_READY, &(info->hw_state));
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	/* Control the point at which RTS is enabled */
+	outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
+
+	/* Timeout before it is safe to send the first HCI packet */
+	msleep(1250);
+
+	/* Register HCI device */
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		info->hdev = NULL;
+		hci_free_dev(hdev);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+
+static int bluecard_close(bluecard_info_t *info)
+{
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev = info->hdev;
+
+	if (!hdev)
+		return -ENODEV;
+
+	bluecard_hci_close(hdev);
+
+	clear_bit(CARD_READY, &(info->hw_state));
+
+	/* Reset card */
+	info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
+	outb(info->ctrl_reg, iobase + REG_CONTROL);
+
+	/* Turn FPGA off */
+	outb(0x80, iobase + 0x30);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+
+	return 0;
+}
+
+static dev_link_t *bluecard_attach(void)
+{
+	bluecard_info_t *info;
+	client_reg_t client_reg;
+	dev_link_t *link;
+	int ret;
+
+	/* Create new info device */
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return NULL;
+	memset(info, 0, sizeof(*info));
+
+	link = &info->link;
+	link->priv = info;
+
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+	link->io.NumPorts1 = 8;
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+
+	link->irq.Handler = bluecard_interrupt;
+	link->irq.Instance = info;
+
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.Vcc = 50;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	/* Register with Card Services */
+	link->next = dev_list;
+	dev_list = link;
+	client_reg.dev_info = &dev_info;
+	client_reg.EventMask =
+		CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+		CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+		CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+	client_reg.event_handler = &bluecard_event;
+	client_reg.Version = 0x0210;
+	client_reg.event_callback_args.client_data = link;
+
+	ret = pcmcia_register_client(&link->handle, &client_reg);
+	if (ret != CS_SUCCESS) {
+		cs_error(link->handle, RegisterClient, ret);
+		bluecard_detach(link);
+		return NULL;
+	}
+
+	return link;
+}
+
+
+static void bluecard_detach(dev_link_t *link)
+{
+	bluecard_info_t *info = link->priv;
+	dev_link_t **linkp;
+	int ret;
+
+	/* Locate device structure */
+	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+		if (*linkp == link)
+			break;
+
+	if (*linkp == NULL)
+		return;
+
+	if (link->state & DEV_CONFIG)
+		bluecard_release(link);
+
+	if (link->handle) {
+		ret = pcmcia_deregister_client(link->handle);
+		if (ret != CS_SUCCESS)
+			cs_error(link->handle, DeregisterClient, ret);
+	}
+
+	/* Unlink device structure, free bits */
+	*linkp = link->next;
+
+	kfree(info);
+}
+
+
+static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	int i;
+
+	i = pcmcia_get_first_tuple(handle, tuple);
+	if (i != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+
+	i = pcmcia_get_tuple_data(handle, tuple);
+	if (i != CS_SUCCESS)
+		return i;
+
+	return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+static void bluecard_config(dev_link_t *link)
+{
+	client_handle_t handle = link->handle;
+	bluecard_info_t *info = link->priv;
+	tuple_t tuple;
+	u_short buf[256];
+	cisparse_t parse;
+	config_info_t config;
+	int i, n, last_ret, last_fn;
+
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+
+	/* Get configuration register information */
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	last_ret = first_tuple(handle, &tuple, &parse);
+	if (last_ret != CS_SUCCESS) {
+		last_fn = ParseTuple;
+		goto cs_failed;
+	}
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+
+	/* Configure card */
+	link->state |= DEV_CONFIG;
+	i = pcmcia_get_configuration_info(handle, &config);
+	link->conf.Vcc = config.Vcc;
+
+	link->conf.ConfigIndex = 0x20;
+	link->io.NumPorts1 = 64;
+	link->io.IOAddrLines = 6;
+
+	for (n = 0; n < 0x400; n += 0x40) {
+		link->io.BasePort1 = n ^ 0x300;
+		i = pcmcia_request_io(link->handle, &link->io);
+		if (i == CS_SUCCESS)
+			break;
+	}
+
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIO, i);
+		goto failed;
+	}
+
+	i = pcmcia_request_irq(link->handle, &link->irq);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIRQ, i);
+		link->irq.AssignedIRQ = 0;
+	}
+
+	i = pcmcia_request_configuration(link->handle, &link->conf);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestConfiguration, i);
+		goto failed;
+	}
+
+	if (bluecard_open(info) != 0)
+		goto failed;
+
+	strcpy(info->node.dev_name, info->hdev->name);
+	link->dev = &info->node;
+	link->state &= ~DEV_CONFIG_PENDING;
+
+	return;
+
+cs_failed:
+	cs_error(link->handle, last_fn, last_ret);
+
+failed:
+	bluecard_release(link);
+}
+
+
+static void bluecard_release(dev_link_t *link)
+{
+	bluecard_info_t *info = link->priv;
+
+	if (link->state & DEV_PRESENT)
+		bluecard_close(info);
+
+	del_timer(&(info->timer));
+
+	link->dev = NULL;
+
+	pcmcia_release_configuration(link->handle);
+	pcmcia_release_io(link->handle, &link->io);
+	pcmcia_release_irq(link->handle, &link->irq);
+
+	link->state &= ~DEV_CONFIG;
+}
+
+
+static int bluecard_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	bluecard_info_t *info = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			bluecard_close(info);
+			bluecard_release(link);
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+		bluecard_config(link);
+		break;
+	case CS_EVENT_PM_SUSPEND:
+		link->state |= DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		if (link->state & DEV_CONFIG)
+			pcmcia_release_configuration(link->handle);
+		break;
+	case CS_EVENT_PM_RESUME:
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		if (DEV_OK(link))
+			pcmcia_request_configuration(link->handle, &link->conf);
+		break;
+	}
+
+	return 0;
+}
+
+static struct pcmcia_driver bluecard_driver = {
+	.owner		= THIS_MODULE,
+	.drv		= {
+		.name	= "bluecard_cs",
+	},
+	.attach		= bluecard_attach,
+	.detach		= bluecard_detach,
+};
+
+static int __init init_bluecard_cs(void)
+{
+	return pcmcia_register_driver(&bluecard_driver);
+}
+
+
+static void __exit exit_bluecard_cs(void)
+{
+	pcmcia_unregister_driver(&bluecard_driver);
+	BUG_ON(dev_list != NULL);
+}
+
+module_init(init_bluecard_cs);
+module_exit(exit_bluecard_cs);
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
new file mode 100644
index 0000000..2771c86
--- /dev/null
+++ b/drivers/bluetooth/bpa10x.c
@@ -0,0 +1,657 @@
+/*
+ *
+ *  Digianswer Bluetooth USB driver
+ *
+ *  Copyright (C) 2004-2005  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/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#ifndef CONFIG_BT_HCIBPA10X_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#endif
+
+#define VERSION "0.8"
+
+static int ignore = 0;
+
+static struct usb_device_id bpa10x_table[] = {
+	/* Tektronix BPA 100/105 (Digianswer) */
+	{ USB_DEVICE(0x08fd, 0x0002) },
+
+	{ }	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, bpa10x_table);
+
+#define BPA10X_CMD_EP		0x00
+#define BPA10X_EVT_EP		0x81
+#define BPA10X_TX_EP		0x02
+#define BPA10X_RX_EP		0x82
+
+#define BPA10X_CMD_BUF_SIZE	252
+#define BPA10X_EVT_BUF_SIZE	16
+#define BPA10X_TX_BUF_SIZE	384
+#define BPA10X_RX_BUF_SIZE	384
+
+struct bpa10x_data {
+	struct hci_dev		*hdev;
+	struct usb_device	*udev;
+
+	rwlock_t		lock;
+
+	struct sk_buff_head	cmd_queue;
+	struct urb		*cmd_urb;
+	struct urb		*evt_urb;
+	struct sk_buff		*evt_skb;
+	unsigned int		evt_len;
+
+	struct sk_buff_head	tx_queue;
+	struct urb		*tx_urb;
+	struct urb		*rx_urb;
+};
+
+#define HCI_VENDOR_HDR_SIZE	5
+
+struct hci_vendor_hdr {
+	__u8	type;
+	__u16	snum;
+	__u16	dlen;
+} __attribute__ ((packed));
+
+static void bpa10x_recv_bulk(struct bpa10x_data *data, unsigned char *buf, int count)
+{
+	struct hci_acl_hdr *ah;
+	struct hci_sco_hdr *sh;
+	struct hci_vendor_hdr *vh;
+	struct sk_buff *skb;
+	int len;
+
+	while (count) {
+		switch (*buf++) {
+		case HCI_ACLDATA_PKT:
+			ah = (struct hci_acl_hdr *) buf;
+			len = HCI_ACL_HDR_SIZE + __le16_to_cpu(ah->dlen);
+			skb = bt_skb_alloc(len, GFP_ATOMIC);
+			if (skb) {
+				memcpy(skb_put(skb, len), buf, len);
+				skb->dev = (void *) data->hdev;
+				skb->pkt_type = HCI_ACLDATA_PKT;
+				hci_recv_frame(skb);
+			}
+			break;
+
+		case HCI_SCODATA_PKT:
+			sh = (struct hci_sco_hdr *) buf;
+			len = HCI_SCO_HDR_SIZE + sh->dlen;
+			skb = bt_skb_alloc(len, GFP_ATOMIC);
+			if (skb) {
+				memcpy(skb_put(skb, len), buf, len);
+				skb->dev = (void *) data->hdev;
+				skb->pkt_type = HCI_SCODATA_PKT;
+				hci_recv_frame(skb);
+			}
+			break;
+
+		case HCI_VENDOR_PKT:
+			vh = (struct hci_vendor_hdr *) buf;
+			len = HCI_VENDOR_HDR_SIZE + __le16_to_cpu(vh->dlen);
+			skb = bt_skb_alloc(len, GFP_ATOMIC);
+			if (skb) {
+				memcpy(skb_put(skb, len), buf, len);
+				skb->dev = (void *) data->hdev;
+				skb->pkt_type = HCI_VENDOR_PKT;
+				hci_recv_frame(skb);
+			}
+			break;
+
+		default:
+			len = count - 1;
+			break;
+		}
+
+		buf   += len;
+		count -= (len + 1);
+	}
+}
+
+static int bpa10x_recv_event(struct bpa10x_data *data, unsigned char *buf, int size)
+{
+	BT_DBG("data %p buf %p size %d", data, buf, size);
+
+	if (data->evt_skb) {
+		struct sk_buff *skb = data->evt_skb;
+
+		memcpy(skb_put(skb, size), buf, size);
+
+		if (skb->len == data->evt_len) {
+			data->evt_skb = NULL;
+			data->evt_len = 0;
+			hci_recv_frame(skb);
+		}
+	} else {
+		struct sk_buff *skb;
+		struct hci_event_hdr *hdr;
+		unsigned char pkt_type;
+		int pkt_len = 0;
+
+		if (size < HCI_EVENT_HDR_SIZE + 1) {
+			BT_ERR("%s event packet block with size %d is too short",
+							data->hdev->name, size);
+			return -EILSEQ;
+		}
+
+		pkt_type = *buf++;
+		size--;
+
+		if (pkt_type != HCI_EVENT_PKT) {
+			BT_ERR("%s unexpected event packet start byte 0x%02x",
+							data->hdev->name, pkt_type);
+			return -EPROTO;
+		}
+
+		hdr = (struct hci_event_hdr *) buf;
+		pkt_len = HCI_EVENT_HDR_SIZE + hdr->plen;
+
+		skb = bt_skb_alloc(pkt_len, GFP_ATOMIC);
+		if (!skb) {
+			BT_ERR("%s no memory for new event packet",
+							data->hdev->name);
+			return -ENOMEM;
+		}
+
+		skb->dev = (void *) data->hdev;
+		skb->pkt_type = pkt_type;
+
+		memcpy(skb_put(skb, size), buf, size);
+
+		if (pkt_len == size) {
+			hci_recv_frame(skb);
+		} else {
+			data->evt_skb = skb;
+			data->evt_len = pkt_len;
+		}
+	}
+
+	return 0;
+}
+
+static void bpa10x_wakeup(struct bpa10x_data *data)
+{
+	struct urb *urb;
+	struct sk_buff *skb;
+	int err;
+
+	BT_DBG("data %p", data);
+
+	urb = data->cmd_urb;
+	if (urb->status == -EINPROGRESS)
+		skb = NULL;
+	else
+		skb = skb_dequeue(&data->cmd_queue);
+
+	if (skb) {
+		struct usb_ctrlrequest *cr;
+
+		if (skb->len > BPA10X_CMD_BUF_SIZE) {
+			BT_ERR("%s command packet with size %d is too big",
+							data->hdev->name, skb->len);
+			kfree_skb(skb);
+			return;
+		}
+
+		cr = (struct usb_ctrlrequest *) urb->setup_packet;
+		cr->wLength = __cpu_to_le16(skb->len);
+
+		memcpy(urb->transfer_buffer, skb->data, skb->len);
+		urb->transfer_buffer_length = skb->len;
+
+		err = usb_submit_urb(urb, GFP_ATOMIC);
+		if (err < 0 && err != -ENODEV) {
+			BT_ERR("%s submit failed for command urb %p with error %d",
+							data->hdev->name, urb, err);
+			skb_queue_head(&data->cmd_queue, skb);
+		} else
+			kfree_skb(skb);
+	}
+
+	urb = data->tx_urb;
+	if (urb->status == -EINPROGRESS)
+		skb = NULL;
+	else
+		skb = skb_dequeue(&data->tx_queue);
+
+	if (skb) {
+		memcpy(urb->transfer_buffer, skb->data, skb->len);
+		urb->transfer_buffer_length = skb->len;
+
+		err = usb_submit_urb(urb, GFP_ATOMIC);
+		if (err < 0 && err != -ENODEV) {
+			BT_ERR("%s submit failed for command urb %p with error %d",
+							data->hdev->name, urb, err);
+			skb_queue_head(&data->tx_queue, skb);
+		} else
+			kfree_skb(skb);
+	}
+}
+
+static void bpa10x_complete(struct urb *urb, struct pt_regs *regs)
+{
+	struct bpa10x_data *data = urb->context;
+	unsigned char *buf = urb->transfer_buffer;
+	int err, count = urb->actual_length;
+
+	BT_DBG("data %p urb %p buf %p count %d", data, urb, buf, count);
+
+	read_lock(&data->lock);
+
+	if (!test_bit(HCI_RUNNING, &data->hdev->flags))
+		goto unlock;
+
+	if (urb->status < 0 || !count)
+		goto resubmit;
+
+	if (usb_pipein(urb->pipe)) {
+		data->hdev->stat.byte_rx += count;
+
+		if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)
+			bpa10x_recv_event(data, buf, count);
+
+		if (usb_pipetype(urb->pipe) == PIPE_BULK)
+			bpa10x_recv_bulk(data, buf, count);
+	} else {
+		data->hdev->stat.byte_tx += count;
+
+		bpa10x_wakeup(data);
+	}
+
+resubmit:
+	if (usb_pipein(urb->pipe)) {
+		err = usb_submit_urb(urb, GFP_ATOMIC);
+		if (err < 0 && err != -ENODEV) {
+			BT_ERR("%s urb %p type %d resubmit status %d",
+				data->hdev->name, urb, usb_pipetype(urb->pipe), err);
+		}
+	}
+
+unlock:
+	read_unlock(&data->lock);
+}
+
+static inline struct urb *bpa10x_alloc_urb(struct usb_device *udev, unsigned int pipe, size_t size, int flags, void *data)
+{
+	struct urb *urb;
+	struct usb_ctrlrequest *cr;
+	unsigned char *buf;
+
+	BT_DBG("udev %p data %p", udev, data);
+
+	urb = usb_alloc_urb(0, flags);
+	if (!urb)
+		return NULL;
+
+	buf = kmalloc(size, flags);
+	if (!buf) {
+		usb_free_urb(urb);
+		return NULL;
+	}
+
+	switch (usb_pipetype(pipe)) {
+	case PIPE_CONTROL:
+		cr = kmalloc(sizeof(*cr), flags);
+		if (!cr) {
+			kfree(buf);
+			usb_free_urb(urb);
+			return NULL;
+		}
+
+		cr->bRequestType = USB_TYPE_VENDOR;
+		cr->bRequest     = 0;
+		cr->wIndex       = 0;
+		cr->wValue       = 0;
+		cr->wLength      = __cpu_to_le16(0);
+
+		usb_fill_control_urb(urb, udev, pipe, (void *) cr, buf, 0, bpa10x_complete, data);
+		break;
+
+	case PIPE_INTERRUPT:
+		usb_fill_int_urb(urb, udev, pipe, buf, size, bpa10x_complete, data, 1);
+		break;
+
+	case PIPE_BULK:
+		usb_fill_bulk_urb(urb, udev, pipe, buf, size, bpa10x_complete, data);
+		break;
+
+	default:
+		kfree(buf);
+		usb_free_urb(urb);
+		return NULL;
+	}
+
+	return urb;
+}
+
+static inline void bpa10x_free_urb(struct urb *urb)
+{
+	BT_DBG("urb %p", urb);
+
+	if (!urb)
+		return;
+
+	if (urb->setup_packet)
+		kfree(urb->setup_packet);
+
+	if (urb->transfer_buffer)
+		kfree(urb->transfer_buffer);
+
+	usb_free_urb(urb);
+}
+
+static int bpa10x_open(struct hci_dev *hdev)
+{
+	struct bpa10x_data *data = hdev->driver_data;
+	struct usb_device *udev = data->udev;
+	unsigned long flags;
+	int err;
+
+	BT_DBG("hdev %p data %p", hdev, data);
+
+	if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	data->cmd_urb = bpa10x_alloc_urb(udev, usb_sndctrlpipe(udev, BPA10X_CMD_EP),
+					BPA10X_CMD_BUF_SIZE, GFP_KERNEL, data);
+	if (!data->cmd_urb) {
+		err = -ENOMEM;
+		goto done;
+	}
+
+	data->evt_urb = bpa10x_alloc_urb(udev, usb_rcvintpipe(udev, BPA10X_EVT_EP),
+					BPA10X_EVT_BUF_SIZE, GFP_KERNEL, data);
+	if (!data->evt_urb) {
+		bpa10x_free_urb(data->cmd_urb);
+		err = -ENOMEM;
+		goto done;
+	}
+
+	data->rx_urb = bpa10x_alloc_urb(udev, usb_rcvbulkpipe(udev, BPA10X_RX_EP),
+					BPA10X_RX_BUF_SIZE, GFP_KERNEL, data);
+	if (!data->rx_urb) {
+		bpa10x_free_urb(data->evt_urb);
+		bpa10x_free_urb(data->cmd_urb);
+		err = -ENOMEM;
+		goto done;
+	}
+
+	data->tx_urb = bpa10x_alloc_urb(udev, usb_sndbulkpipe(udev, BPA10X_TX_EP),
+					BPA10X_TX_BUF_SIZE, GFP_KERNEL, data);
+	if (!data->rx_urb) {
+		bpa10x_free_urb(data->rx_urb);
+		bpa10x_free_urb(data->evt_urb);
+		bpa10x_free_urb(data->cmd_urb);
+		err = -ENOMEM;
+		goto done;
+	}
+
+	write_lock_irqsave(&data->lock, flags);
+
+	err = usb_submit_urb(data->evt_urb, GFP_ATOMIC);
+	if (err < 0) {
+		BT_ERR("%s submit failed for event urb %p with error %d",
+					data->hdev->name, data->evt_urb, err);
+	} else {
+		err = usb_submit_urb(data->rx_urb, GFP_ATOMIC);
+		if (err < 0) {
+			BT_ERR("%s submit failed for rx urb %p with error %d",
+					data->hdev->name, data->evt_urb, err);
+			usb_kill_urb(data->evt_urb);
+		}
+	}
+
+	write_unlock_irqrestore(&data->lock, flags);
+
+done:
+	if (err < 0)
+		clear_bit(HCI_RUNNING, &hdev->flags);
+
+	return err;
+}
+
+static int bpa10x_close(struct hci_dev *hdev)
+{
+	struct bpa10x_data *data = hdev->driver_data;
+	unsigned long flags;
+
+	BT_DBG("hdev %p data %p", hdev, data);
+
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	write_lock_irqsave(&data->lock, flags);
+
+	skb_queue_purge(&data->cmd_queue);
+	usb_kill_urb(data->cmd_urb);
+	usb_kill_urb(data->evt_urb);
+	usb_kill_urb(data->rx_urb);
+	usb_kill_urb(data->tx_urb);
+
+	write_unlock_irqrestore(&data->lock, flags);
+
+	bpa10x_free_urb(data->cmd_urb);
+	bpa10x_free_urb(data->evt_urb);
+	bpa10x_free_urb(data->rx_urb);
+	bpa10x_free_urb(data->tx_urb);
+
+	return 0;
+}
+
+static int bpa10x_flush(struct hci_dev *hdev)
+{
+	struct bpa10x_data *data = hdev->driver_data;
+
+	BT_DBG("hdev %p data %p", hdev, data);
+
+	skb_queue_purge(&data->cmd_queue);
+
+	return 0;
+}
+
+static int bpa10x_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+	struct bpa10x_data *data;
+
+	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");
+		return -ENODEV;
+	}
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return -EBUSY;
+
+	data = hdev->driver_data;
+
+	/* Prepend skb with frame type */
+	memcpy(skb_push(skb, 1), &(skb->pkt_type), 1);
+
+	switch (skb->pkt_type) {
+	case HCI_COMMAND_PKT:
+		hdev->stat.cmd_tx++;
+		skb_queue_tail(&data->cmd_queue, skb);
+		break;
+
+	case HCI_ACLDATA_PKT:
+		hdev->stat.acl_tx++;
+		skb_queue_tail(&data->tx_queue, skb);
+		break;
+
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		skb_queue_tail(&data->tx_queue, skb);
+		break;
+	};
+
+	read_lock(&data->lock);
+
+	bpa10x_wakeup(data);
+
+	read_unlock(&data->lock);
+
+	return 0;
+}
+
+static void bpa10x_destruct(struct hci_dev *hdev)
+{
+	struct bpa10x_data *data = hdev->driver_data;
+
+	BT_DBG("hdev %p data %p", hdev, data);
+
+	kfree(data);
+}
+
+static int bpa10x_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct hci_dev *hdev;
+	struct bpa10x_data *data;
+	int err;
+
+	BT_DBG("intf %p id %p", intf, id);
+
+	if (ignore)
+		return -ENODEV;
+
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		BT_ERR("Can't allocate data structure");
+		return -ENOMEM;
+	}
+
+	memset(data, 0, sizeof(*data));
+
+	data->udev = udev;
+
+	rwlock_init(&data->lock);
+
+	skb_queue_head_init(&data->cmd_queue);
+	skb_queue_head_init(&data->tx_queue);
+
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		kfree(data);
+		return -ENOMEM;
+	}
+
+	data->hdev = hdev;
+
+	hdev->type = HCI_USB;
+	hdev->driver_data = data;
+	SET_HCIDEV_DEV(hdev, &intf->dev);
+
+	hdev->open	= bpa10x_open;
+	hdev->close	= bpa10x_close;
+	hdev->flush	= bpa10x_flush;
+	hdev->send	= bpa10x_send_frame;
+	hdev->destruct	= bpa10x_destruct;
+
+	hdev->owner = THIS_MODULE;
+
+	err = hci_register_dev(hdev);
+	if (err < 0) {
+		BT_ERR("Can't register HCI device");
+		kfree(data);
+		hci_free_dev(hdev);
+		return err;
+	}
+
+	usb_set_intfdata(intf, data);
+
+	return 0;
+}
+
+static void bpa10x_disconnect(struct usb_interface *intf)
+{
+	struct bpa10x_data *data = usb_get_intfdata(intf);
+	struct hci_dev *hdev = data->hdev;
+
+	BT_DBG("intf %p", intf);
+
+	if (!hdev)
+		return;
+
+	usb_set_intfdata(intf, NULL);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+}
+
+static struct usb_driver bpa10x_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "bpa10x",
+	.probe		= bpa10x_probe,
+	.disconnect	= bpa10x_disconnect,
+	.id_table	= bpa10x_table,
+};
+
+static int __init bpa10x_init(void)
+{
+	int err;
+
+	BT_INFO("Digianswer Bluetooth USB driver ver %s", VERSION);
+
+	err = usb_register(&bpa10x_driver);
+	if (err < 0)
+		BT_ERR("Failed to register USB driver");
+
+	return err;
+}
+
+static void __exit bpa10x_exit(void)
+{
+	usb_deregister(&bpa10x_driver);
+}
+
+module_init(bpa10x_init);
+module_exit(bpa10x_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("Digianswer Bluetooth USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
new file mode 100644
index 0000000..f71e5c7
--- /dev/null
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -0,0 +1,960 @@
+/*
+ *
+ *  Driver for the 3Com Bluetooth PCMCIA card
+ *
+ *  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
+ *                           Jose Orlando Pereira <jop@di.uminho.pt>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  Software distributed under the License is distributed on an "AS
+ *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *  implied. See the License for the specific language governing
+ *  rights and limitations under the License.
+ *
+ *  The initial developer of the original code is David A. Hinds
+ *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ */
+
+#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/delay.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+
+#include <linux/skbuff.h>
+#include <linux/string.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/io.h>
+
+#include <linux/device.h>
+#include <linux/firmware.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+
+
+/* ======================== Module parameters ======================== */
+
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>, Jose Orlando Pereira <jop@di.uminho.pt>");
+MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct bt3c_info_t {
+	dev_link_t link;
+	dev_node_t node;
+
+	struct hci_dev *hdev;
+
+	spinlock_t lock;		/* For serializing operations */
+
+	struct sk_buff_head txq;
+	unsigned long tx_state;
+
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+} bt3c_info_t;
+
+
+static void bt3c_config(dev_link_t *link);
+static void bt3c_release(dev_link_t *link);
+static int bt3c_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "bt3c_cs";
+
+static dev_link_t *bt3c_attach(void);
+static void bt3c_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+
+/* Transmit states  */
+#define XMIT_SENDING  1
+#define XMIT_WAKEUP   2
+#define XMIT_WAITING  8
+
+/* Receiver states */
+#define RECV_WAIT_PACKET_TYPE   0
+#define RECV_WAIT_EVENT_HEADER  1
+#define RECV_WAIT_ACL_HEADER    2
+#define RECV_WAIT_SCO_HEADER    3
+#define RECV_WAIT_DATA          4
+
+
+
+/* ======================== Special I/O functions ======================== */
+
+
+#define DATA_L   0
+#define DATA_H   1
+#define ADDR_L   2
+#define ADDR_H   3
+#define CONTROL  4
+
+
+static inline void bt3c_address(unsigned int iobase, unsigned short addr)
+{
+	outb(addr & 0xff, iobase + ADDR_L);
+	outb((addr >> 8) & 0xff, iobase + ADDR_H);
+}
+
+
+static inline void bt3c_put(unsigned int iobase, unsigned short value)
+{
+	outb(value & 0xff, iobase + DATA_L);
+	outb((value >> 8) & 0xff, iobase + DATA_H);
+}
+
+
+static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value)
+{
+	bt3c_address(iobase, addr);
+	bt3c_put(iobase, value);
+}
+
+
+static inline unsigned short bt3c_get(unsigned int iobase)
+{
+	unsigned short value = inb(iobase + DATA_L);
+
+	value |= inb(iobase + DATA_H) << 8;
+
+	return value;
+}
+
+
+static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr)
+{
+	bt3c_address(iobase, addr);
+
+	return bt3c_get(iobase);
+}
+
+
+
+/* ======================== Interrupt handling ======================== */
+
+
+static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
+{
+	int actual = 0;
+
+	bt3c_address(iobase, 0x7080);
+
+	/* Fill FIFO with current frame */
+	while (actual < len) {
+		/* Transmit next byte */
+		bt3c_put(iobase, buf[actual]);
+		actual++;
+	}
+
+	bt3c_io_write(iobase, 0x7005, actual);
+
+	return actual;
+}
+
+
+static void bt3c_write_wakeup(bt3c_info_t *info)
+{
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state)))
+		return;
+
+	do {
+		register unsigned int iobase = info->link.io.BasePort1;
+		register struct sk_buff *skb;
+		register int len;
+
+		if (!(info->link.state & DEV_PRESENT))
+			break;
+
+
+		if (!(skb = skb_dequeue(&(info->txq)))) {
+			clear_bit(XMIT_SENDING, &(info->tx_state));
+			break;
+		}
+
+		/* Send frame */
+		len = bt3c_write(iobase, 256, skb->data, skb->len);
+
+		if (len != skb->len) {
+			BT_ERR("Very strange");
+		}
+
+		kfree_skb(skb);
+
+		info->hdev->stat.byte_tx += len;
+
+	} while (0);
+}
+
+
+static void bt3c_receive(bt3c_info_t *info)
+{
+	unsigned int iobase;
+	int size = 0, avail;
+
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	avail = bt3c_read(iobase, 0x7006);
+	//printk("bt3c_cs: receiving %d bytes\n", avail);
+
+	bt3c_address(iobase, 0x7480);
+	while (size < avail) {
+		size++;
+		info->hdev->stat.byte_rx++;
+
+		/* Allocate packet */
+		if (info->rx_skb == NULL) {
+			info->rx_state = RECV_WAIT_PACKET_TYPE;
+			info->rx_count = 0;
+			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+				BT_ERR("Can't allocate mem for new packet");
+				return;
+			}
+		}
+
+
+		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
+
+			info->rx_skb->dev = (void *) info->hdev;
+			info->rx_skb->pkt_type = inb(iobase + DATA_L);
+			inb(iobase + DATA_H);
+			//printk("bt3c: PACKET_TYPE=%02x\n", info->rx_skb->pkt_type);
+
+			switch (info->rx_skb->pkt_type) {
+
+			case HCI_EVENT_PKT:
+				info->rx_state = RECV_WAIT_EVENT_HEADER;
+				info->rx_count = HCI_EVENT_HDR_SIZE;
+				break;
+
+			case HCI_ACLDATA_PKT:
+				info->rx_state = RECV_WAIT_ACL_HEADER;
+				info->rx_count = HCI_ACL_HDR_SIZE;
+				break;
+
+			case HCI_SCODATA_PKT:
+				info->rx_state = RECV_WAIT_SCO_HEADER;
+				info->rx_count = HCI_SCO_HDR_SIZE;
+				break;
+
+			default:
+				/* Unknown packet */
+				BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
+				info->hdev->stat.err_rx++;
+				clear_bit(HCI_RUNNING, &(info->hdev->flags));
+
+				kfree_skb(info->rx_skb);
+				info->rx_skb = NULL;
+				break;
+
+			}
+
+		} else {
+
+			__u8 x = inb(iobase + DATA_L);
+
+			*skb_put(info->rx_skb, 1) = x;
+			inb(iobase + DATA_H);
+			info->rx_count--;
+
+			if (info->rx_count == 0) {
+
+				int dlen;
+				struct hci_event_hdr *eh;
+				struct hci_acl_hdr *ah;
+				struct hci_sco_hdr *sh;
+
+				switch (info->rx_state) {
+
+				case RECV_WAIT_EVENT_HEADER:
+					eh = (struct hci_event_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = eh->plen;
+					break;
+
+				case RECV_WAIT_ACL_HEADER:
+					ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+					dlen = __le16_to_cpu(ah->dlen);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = dlen;
+					break;
+
+				case RECV_WAIT_SCO_HEADER:
+					sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = sh->dlen;
+					break;
+
+				case RECV_WAIT_DATA:
+					hci_recv_frame(info->rx_skb);
+					info->rx_skb = NULL;
+					break;
+
+				}
+
+			}
+
+		}
+
+	}
+
+	bt3c_io_write(iobase, 0x7006, 0x0000);
+}
+
+
+static irqreturn_t bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+	bt3c_info_t *info = dev_inst;
+	unsigned int iobase;
+	int iir;
+
+	if (!info || !info->hdev) {
+		BT_ERR("Call of irq %d for unknown device", irq);
+		return IRQ_NONE;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock(&(info->lock));
+
+	iir = inb(iobase + CONTROL);
+	if (iir & 0x80) {
+		int stat = bt3c_read(iobase, 0x7001);
+
+		if ((stat & 0xff) == 0x7f) {
+			BT_ERR("Very strange (stat=0x%04x)", stat);
+		} else if ((stat & 0xff) != 0xff) {
+			if (stat & 0x0020) {
+				int stat = bt3c_read(iobase, 0x7002) & 0x10;
+				BT_INFO("%s: Antenna %s", info->hdev->name,
+							stat ? "out" : "in");
+			}
+			if (stat & 0x0001)
+				bt3c_receive(info);
+			if (stat & 0x0002) {
+				//BT_ERR("Ack (stat=0x%04x)", stat);
+				clear_bit(XMIT_SENDING, &(info->tx_state));
+				bt3c_write_wakeup(info);
+			}
+
+			bt3c_io_write(iobase, 0x7001, 0x0000);
+
+			outb(iir, iobase + CONTROL);
+		}
+	}
+
+	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
+}
+
+
+
+/* ======================== HCI interface ======================== */
+
+
+static int bt3c_hci_flush(struct hci_dev *hdev)
+{
+	bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data);
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	return 0;
+}
+
+
+static int bt3c_hci_open(struct hci_dev *hdev)
+{
+	set_bit(HCI_RUNNING, &(hdev->flags));
+
+	return 0;
+}
+
+
+static int bt3c_hci_close(struct hci_dev *hdev)
+{
+	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	bt3c_hci_flush(hdev);
+
+	return 0;
+}
+
+
+static int bt3c_hci_send_frame(struct sk_buff *skb)
+{
+	bt3c_info_t *info;
+	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+	unsigned long flags;
+
+	if (!hdev) {
+		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	info = (bt3c_info_t *) (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);
+	skb_queue_tail(&(info->txq), skb);
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	bt3c_write_wakeup(info);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	return 0;
+}
+
+
+static void bt3c_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+static struct device *bt3c_device(void)
+{
+	static struct device dev = {
+		.bus_id = "pcmcia",
+	};
+	kobject_set_name(&dev.kobj, "bt3c");
+	kobject_init(&dev.kobj);
+
+	return &dev;
+}
+
+
+static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count)
+{
+	char *ptr = (char *) firmware;
+	char b[9];
+	unsigned int iobase, size, addr, fcs, tmp;
+	int i, err = 0;
+
+	iobase = info->link.io.BasePort1;
+
+	/* Reset */
+	bt3c_io_write(iobase, 0x8040, 0x0404);
+	bt3c_io_write(iobase, 0x8040, 0x0400);
+
+	udelay(1);
+
+	bt3c_io_write(iobase, 0x8040, 0x0404);
+
+	udelay(17);
+
+	/* Load */
+	while (count) {
+		if (ptr[0] != 'S') {
+			BT_ERR("Bad address in firmware");
+			err = -EFAULT;
+			goto error;
+		}
+
+		memset(b, 0, sizeof(b));
+		memcpy(b, ptr + 2, 2);
+		size = simple_strtol(b, NULL, 16);
+
+		memset(b, 0, sizeof(b));
+		memcpy(b, ptr + 4, 8);
+		addr = simple_strtol(b, NULL, 16);
+
+		memset(b, 0, sizeof(b));
+		memcpy(b, ptr + (size * 2) + 2, 2);
+		fcs = simple_strtol(b, NULL, 16);
+
+		memset(b, 0, sizeof(b));
+		for (tmp = 0, i = 0; i < size; i++) {
+			memcpy(b, ptr + (i * 2) + 2, 2);
+			tmp += simple_strtol(b, NULL, 16);
+		}
+
+		if (((tmp + fcs) & 0xff) != 0xff) {
+			BT_ERR("Checksum error in firmware");
+			err = -EILSEQ;
+			goto error;
+		}
+
+		if (ptr[1] == '3') {
+			bt3c_address(iobase, addr);
+
+			memset(b, 0, sizeof(b));
+			for (i = 0; i < (size - 4) / 2; i++) {
+				memcpy(b, ptr + (i * 4) + 12, 4);
+				tmp = simple_strtol(b, NULL, 16);
+				bt3c_put(iobase, tmp);
+			}
+		}
+
+		ptr   += (size * 2) + 6;
+		count -= (size * 2) + 6;
+	}
+
+	udelay(17);
+
+	/* Boot */
+	bt3c_address(iobase, 0x3000);
+	outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL);
+
+error:
+	udelay(17);
+
+	/* Clear */
+	bt3c_io_write(iobase, 0x7006, 0x0000);
+	bt3c_io_write(iobase, 0x7005, 0x0000);
+	bt3c_io_write(iobase, 0x7001, 0x0000);
+
+	return err;
+}
+
+
+static int bt3c_open(bt3c_info_t *info)
+{
+	const struct firmware *firmware;
+	struct hci_dev *hdev;
+	int err;
+
+	spin_lock_init(&(info->lock));
+
+	skb_queue_head_init(&(info->txq));
+
+	info->rx_state = RECV_WAIT_PACKET_TYPE;
+	info->rx_count = 0;
+	info->rx_skb = NULL;
+
+	/* Initialize HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		return -ENOMEM;
+	}
+
+	info->hdev = hdev;
+
+	hdev->type = HCI_PCCARD;
+	hdev->driver_data = info;
+
+	hdev->open     = bt3c_hci_open;
+	hdev->close    = bt3c_hci_close;
+	hdev->flush    = bt3c_hci_flush;
+	hdev->send     = bt3c_hci_send_frame;
+	hdev->destruct = bt3c_hci_destruct;
+	hdev->ioctl    = bt3c_hci_ioctl;
+
+	hdev->owner = THIS_MODULE;
+
+	/* Load firmware */
+	err = request_firmware(&firmware, "BT3CPCC.bin", bt3c_device());
+	if (err < 0) {
+		BT_ERR("Firmware request failed");
+		goto error;
+	}
+
+	err = bt3c_load_firmware(info, firmware->data, firmware->size);
+
+	release_firmware(firmware);
+
+	if (err < 0) {
+		BT_ERR("Firmware loading failed");
+		goto error;
+	}
+
+	/* Timeout before it is safe to send the first HCI packet */
+	msleep(1000);
+
+	/* Register HCI device */
+	err = hci_register_dev(hdev);
+	if (err < 0) {
+		BT_ERR("Can't register HCI device");
+		goto error;
+	}
+
+	return 0;
+
+error:
+	info->hdev = NULL;
+	hci_free_dev(hdev);
+	return err;
+}
+
+
+static int bt3c_close(bt3c_info_t *info)
+{
+	struct hci_dev *hdev = info->hdev;
+
+	if (!hdev)
+		return -ENODEV;
+
+	bt3c_hci_close(hdev);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+
+	return 0;
+}
+
+static dev_link_t *bt3c_attach(void)
+{
+	bt3c_info_t *info;
+	client_reg_t client_reg;
+	dev_link_t *link;
+	int ret;
+
+	/* Create new info device */
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return NULL;
+	memset(info, 0, sizeof(*info));
+
+	link = &info->link;
+	link->priv = info;
+
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+	link->io.NumPorts1 = 8;
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+
+	link->irq.Handler = bt3c_interrupt;
+	link->irq.Instance = info;
+
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.Vcc = 50;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	/* Register with Card Services */
+	link->next = dev_list;
+	dev_list = link;
+	client_reg.dev_info = &dev_info;
+	client_reg.EventMask =
+	    CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+	    CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+	    CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+	client_reg.event_handler = &bt3c_event;
+	client_reg.Version = 0x0210;
+	client_reg.event_callback_args.client_data = link;
+
+	ret = pcmcia_register_client(&link->handle, &client_reg);
+	if (ret != CS_SUCCESS) {
+		cs_error(link->handle, RegisterClient, ret);
+		bt3c_detach(link);
+		return NULL;
+	}
+
+	return link;
+}
+
+
+static void bt3c_detach(dev_link_t *link)
+{
+	bt3c_info_t *info = link->priv;
+	dev_link_t **linkp;
+	int ret;
+
+	/* Locate device structure */
+	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+		if (*linkp == link)
+			break;
+
+	if (*linkp == NULL)
+		return;
+
+	if (link->state & DEV_CONFIG)
+		bt3c_release(link);
+
+	if (link->handle) {
+		ret = pcmcia_deregister_client(link->handle);
+		if (ret != CS_SUCCESS)
+			cs_error(link->handle, DeregisterClient, ret);
+	}
+
+	/* Unlink device structure, free bits */
+	*linkp = link->next;
+
+	kfree(info);
+}
+
+static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	int i;
+
+	i = pcmcia_get_tuple_data(handle, tuple);
+	if (i != CS_SUCCESS)
+		return i;
+
+	return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+	return get_tuple(handle, tuple, parse);
+}
+
+static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+	return get_tuple(handle, tuple, parse);
+}
+
+static void bt3c_config(dev_link_t *link)
+{
+	static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+	client_handle_t handle = link->handle;
+	bt3c_info_t *info = link->priv;
+	tuple_t tuple;
+	u_short buf[256];
+	cisparse_t parse;
+	cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+	config_info_t config;
+	int i, j, try, last_ret, last_fn;
+
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+
+	/* Get configuration register information */
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	last_ret = first_tuple(handle, &tuple, &parse);
+	if (last_ret != CS_SUCCESS) {
+		last_fn = ParseTuple;
+		goto cs_failed;
+	}
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+
+	/* Configure card */
+	link->state |= DEV_CONFIG;
+	i = pcmcia_get_configuration_info(handle, &config);
+	link->conf.Vcc = config.Vcc;
+
+	/* First pass: look for a config entry that looks normal. */
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+	/* Two tries: without IO aliases, then with aliases */
+	for (try = 0; try < 2; try++) {
+		i = first_tuple(handle, &tuple, &parse);
+		while (i != CS_NO_MORE_ITEMS) {
+			if (i != CS_SUCCESS)
+				goto next_entry;
+			if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
+				link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+			if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
+				link->conf.ConfigIndex = cf->index;
+				link->io.BasePort1 = cf->io.win[0].base;
+				link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
+				i = pcmcia_request_io(link->handle, &link->io);
+				if (i == CS_SUCCESS)
+					goto found_port;
+			}
+next_entry:
+			i = next_tuple(handle, &tuple, &parse);
+		}
+	}
+
+	/* Second pass: try to find an entry that isn't picky about
+	   its base address, then try to grab any standard serial port
+	   address, and finally try to get any free port. */
+	i = first_tuple(handle, &tuple, &parse);
+	while (i != CS_NO_MORE_ITEMS) {
+		if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
+			link->conf.ConfigIndex = cf->index;
+			for (j = 0; j < 5; j++) {
+				link->io.BasePort1 = base[j];
+				link->io.IOAddrLines = base[j] ? 16 : 3;
+				i = pcmcia_request_io(link->handle, &link->io);
+				if (i == CS_SUCCESS)
+					goto found_port;
+			}
+		}
+		i = next_tuple(handle, &tuple, &parse);
+	}
+
+found_port:
+	if (i != CS_SUCCESS) {
+		BT_ERR("No usable port range found");
+		cs_error(link->handle, RequestIO, i);
+		goto failed;
+	}
+
+	i = pcmcia_request_irq(link->handle, &link->irq);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIRQ, i);
+		link->irq.AssignedIRQ = 0;
+	}
+
+	i = pcmcia_request_configuration(link->handle, &link->conf);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestConfiguration, i);
+		goto failed;
+	}
+
+	if (bt3c_open(info) != 0)
+		goto failed;
+
+	strcpy(info->node.dev_name, info->hdev->name);
+	link->dev = &info->node;
+	link->state &= ~DEV_CONFIG_PENDING;
+
+	return;
+
+cs_failed:
+	cs_error(link->handle, last_fn, last_ret);
+
+failed:
+	bt3c_release(link);
+}
+
+
+static void bt3c_release(dev_link_t *link)
+{
+	bt3c_info_t *info = link->priv;
+
+	if (link->state & DEV_PRESENT)
+		bt3c_close(info);
+
+	link->dev = NULL;
+
+	pcmcia_release_configuration(link->handle);
+	pcmcia_release_io(link->handle, &link->io);
+	pcmcia_release_irq(link->handle, &link->irq);
+
+	link->state &= ~DEV_CONFIG;
+}
+
+
+static int bt3c_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	bt3c_info_t *info = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			bt3c_close(info);
+			bt3c_release(link);
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+		bt3c_config(link);
+		break;
+	case CS_EVENT_PM_SUSPEND:
+		link->state |= DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		if (link->state & DEV_CONFIG)
+			pcmcia_release_configuration(link->handle);
+		break;
+	case CS_EVENT_PM_RESUME:
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		if (DEV_OK(link))
+			pcmcia_request_configuration(link->handle, &link->conf);
+		break;
+	}
+
+	return 0;
+}
+
+static struct pcmcia_driver bt3c_driver = {
+	.owner		= THIS_MODULE,
+	.drv		= {
+		.name	= "bt3c_cs",
+	},
+	.attach		= bt3c_attach,
+	.detach		= bt3c_detach,
+};
+
+static int __init init_bt3c_cs(void)
+{
+	return pcmcia_register_driver(&bt3c_driver);
+}
+
+
+static void __exit exit_bt3c_cs(void)
+{
+	pcmcia_unregister_driver(&bt3c_driver);
+	BUG_ON(dev_list != NULL);
+}
+
+module_init(init_bt3c_cs);
+module_exit(exit_bt3c_cs);
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
new file mode 100644
index 0000000..ad8d972
--- /dev/null
+++ b/drivers/bluetooth/btuart_cs.c
@@ -0,0 +1,880 @@
+/*
+ *
+ *  Driver for Bluetooth PCMCIA cards with HCI UART interface
+ *
+ *  Copyright (C) 2001-2002  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 version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  Software distributed under the License is distributed on an "AS
+ *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *  implied. See the License for the specific language governing
+ *  rights and limitations under the License.
+ *
+ *  The initial developer of the original code is David A. Hinds
+ *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ */
+
+#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/delay.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+
+#include <linux/skbuff.h>
+#include <linux/string.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/io.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+
+
+/* ======================== Module parameters ======================== */
+
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth driver for Bluetooth PCMCIA cards with HCI UART interface");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct btuart_info_t {
+	dev_link_t link;
+	dev_node_t node;
+
+	struct hci_dev *hdev;
+
+	spinlock_t lock;	/* For serializing operations */
+
+	struct sk_buff_head txq;
+	unsigned long tx_state;
+
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+} btuart_info_t;
+
+
+static void btuart_config(dev_link_t *link);
+static void btuart_release(dev_link_t *link);
+static int btuart_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "btuart_cs";
+
+static dev_link_t *btuart_attach(void);
+static void btuart_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+
+/* Maximum baud rate */
+#define SPEED_MAX  115200
+
+/* Default baud rate: 57600, 115200, 230400 or 460800 */
+#define DEFAULT_BAUD_RATE  115200
+
+
+/* Transmit states  */
+#define XMIT_SENDING	1
+#define XMIT_WAKEUP	2
+#define XMIT_WAITING	8
+
+/* Receiver states */
+#define RECV_WAIT_PACKET_TYPE	0
+#define RECV_WAIT_EVENT_HEADER	1
+#define RECV_WAIT_ACL_HEADER	2
+#define RECV_WAIT_SCO_HEADER	3
+#define RECV_WAIT_DATA		4
+
+
+
+/* ======================== Interrupt handling ======================== */
+
+
+static int btuart_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
+{
+	int actual = 0;
+
+	/* Tx FIFO should be empty */
+	if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
+		return 0;
+
+	/* Fill FIFO with current frame */
+	while ((fifo_size-- > 0) && (actual < len)) {
+		/* Transmit next byte */
+		outb(buf[actual], iobase + UART_TX);
+		actual++;
+	}
+
+	return actual;
+}
+
+
+static void btuart_write_wakeup(btuart_info_t *info)
+{
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+		return;
+	}
+
+	do {
+		register unsigned int iobase = info->link.io.BasePort1;
+		register struct sk_buff *skb;
+		register int len;
+
+		clear_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (!(info->link.state & DEV_PRESENT))
+			return;
+
+		if (!(skb = skb_dequeue(&(info->txq))))
+			break;
+
+		/* Send frame */
+		len = btuart_write(iobase, 16, skb->data, skb->len);
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (len == skb->len) {
+			kfree_skb(skb);
+		} else {
+			skb_pull(skb, len);
+			skb_queue_head(&(info->txq), skb);
+		}
+
+		info->hdev->stat.byte_tx += len;
+
+	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
+
+	clear_bit(XMIT_SENDING, &(info->tx_state));
+}
+
+
+static void btuart_receive(btuart_info_t *info)
+{
+	unsigned int iobase;
+	int boguscount = 0;
+
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	do {
+		info->hdev->stat.byte_rx++;
+
+		/* Allocate packet */
+		if (info->rx_skb == NULL) {
+			info->rx_state = RECV_WAIT_PACKET_TYPE;
+			info->rx_count = 0;
+			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+				BT_ERR("Can't allocate mem for new packet");
+				return;
+			}
+		}
+
+		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
+
+			info->rx_skb->dev = (void *) info->hdev;
+			info->rx_skb->pkt_type = inb(iobase + UART_RX);
+
+			switch (info->rx_skb->pkt_type) {
+
+			case HCI_EVENT_PKT:
+				info->rx_state = RECV_WAIT_EVENT_HEADER;
+				info->rx_count = HCI_EVENT_HDR_SIZE;
+				break;
+
+			case HCI_ACLDATA_PKT:
+				info->rx_state = RECV_WAIT_ACL_HEADER;
+				info->rx_count = HCI_ACL_HDR_SIZE;
+				break;
+
+			case HCI_SCODATA_PKT:
+				info->rx_state = RECV_WAIT_SCO_HEADER;
+				info->rx_count = HCI_SCO_HDR_SIZE;
+				break;
+
+			default:
+				/* Unknown packet */
+				BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
+				info->hdev->stat.err_rx++;
+				clear_bit(HCI_RUNNING, &(info->hdev->flags));
+
+				kfree_skb(info->rx_skb);
+				info->rx_skb = NULL;
+				break;
+
+			}
+
+		} else {
+
+			*skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
+			info->rx_count--;
+
+			if (info->rx_count == 0) {
+
+				int dlen;
+				struct hci_event_hdr *eh;
+				struct hci_acl_hdr *ah;
+				struct hci_sco_hdr *sh;
+
+
+				switch (info->rx_state) {
+
+				case RECV_WAIT_EVENT_HEADER:
+					eh = (struct hci_event_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = eh->plen;
+					break;
+
+				case RECV_WAIT_ACL_HEADER:
+					ah = (struct hci_acl_hdr *)(info->rx_skb->data);
+					dlen = __le16_to_cpu(ah->dlen);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = dlen;
+					break;
+
+				case RECV_WAIT_SCO_HEADER:
+					sh = (struct hci_sco_hdr *)(info->rx_skb->data);
+					info->rx_state = RECV_WAIT_DATA;
+					info->rx_count = sh->dlen;
+					break;
+
+				case RECV_WAIT_DATA:
+					hci_recv_frame(info->rx_skb);
+					info->rx_skb = NULL;
+					break;
+
+				}
+
+			}
+
+		}
+
+		/* Make sure we don't stay here too long */
+		if (boguscount++ > 16)
+			break;
+
+	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
+}
+
+
+static irqreturn_t btuart_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+	btuart_info_t *info = dev_inst;
+	unsigned int iobase;
+	int boguscount = 0;
+	int iir, lsr;
+
+	if (!info || !info->hdev) {
+		BT_ERR("Call of irq %d for unknown device", irq);
+		return IRQ_NONE;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock(&(info->lock));
+
+	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
+	while (iir) {
+
+		/* Clear interrupt */
+		lsr = inb(iobase + UART_LSR);
+
+		switch (iir) {
+		case UART_IIR_RLSI:
+			BT_ERR("RLSI");
+			break;
+		case UART_IIR_RDI:
+			/* Receive interrupt */
+			btuart_receive(info);
+			break;
+		case UART_IIR_THRI:
+			if (lsr & UART_LSR_THRE) {
+				/* Transmitter ready for data */
+				btuart_write_wakeup(info);
+			}
+			break;
+		default:
+			BT_ERR("Unhandled IIR=%#x", iir);
+			break;
+		}
+
+		/* Make sure we don't stay here too long */
+		if (boguscount++ > 100)
+			break;
+
+		iir = inb(iobase + UART_IIR) & UART_IIR_ID;
+
+	}
+
+	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
+}
+
+
+static void btuart_change_speed(btuart_info_t *info, unsigned int speed)
+{
+	unsigned long flags;
+	unsigned int iobase;
+	int fcr;		/* FIFO control reg */
+	int lcr;		/* Line control reg */
+	int divisor;
+
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	divisor = SPEED_MAX / speed;
+
+	fcr = UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT;
+
+	/* 
+	 * Use trigger level 1 to avoid 3 ms. timeout delay at 9600 bps, and
+	 * almost 1,7 ms at 19200 bps. At speeds above that we can just forget
+	 * about this timeout since it will always be fast enough. 
+	 */
+
+	if (speed < 38400)
+		fcr |= UART_FCR_TRIGGER_1;
+	else
+		fcr |= UART_FCR_TRIGGER_14;
+
+	/* Bluetooth cards use 8N1 */
+	lcr = UART_LCR_WLEN8;
+
+	outb(UART_LCR_DLAB | lcr, iobase + UART_LCR);	/* Set DLAB */
+	outb(divisor & 0xff, iobase + UART_DLL);	/* Set speed */
+	outb(divisor >> 8, iobase + UART_DLM);
+	outb(lcr, iobase + UART_LCR);	/* Set 8N1  */
+	outb(fcr, iobase + UART_FCR);	/* Enable FIFO's */
+
+	/* Turn on interrups */
+	outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+}
+
+
+
+/* ======================== HCI interface ======================== */
+
+
+static int btuart_hci_flush(struct hci_dev *hdev)
+{
+	btuart_info_t *info = (btuart_info_t *)(hdev->driver_data);
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	return 0;
+}
+
+
+static int btuart_hci_open(struct hci_dev *hdev)
+{
+	set_bit(HCI_RUNNING, &(hdev->flags));
+
+	return 0;
+}
+
+
+static int btuart_hci_close(struct hci_dev *hdev)
+{
+	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	btuart_hci_flush(hdev);
+
+	return 0;
+}
+
+
+static int btuart_hci_send_frame(struct sk_buff *skb)
+{
+	btuart_info_t *info;
+	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+
+	if (!hdev) {
+		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	info = (btuart_info_t *)(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);
+	skb_queue_tail(&(info->txq), skb);
+
+	btuart_write_wakeup(info);
+
+	return 0;
+}
+
+
+static void btuart_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int btuart_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+static int btuart_open(btuart_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev;
+
+	spin_lock_init(&(info->lock));
+
+	skb_queue_head_init(&(info->txq));
+
+	info->rx_state = RECV_WAIT_PACKET_TYPE;
+	info->rx_count = 0;
+	info->rx_skb = NULL;
+
+	/* Initialize HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		return -ENOMEM;
+	}
+
+	info->hdev = hdev;
+
+	hdev->type = HCI_PCCARD;
+	hdev->driver_data = info;
+
+	hdev->open     = btuart_hci_open;
+	hdev->close    = btuart_hci_close;
+	hdev->flush    = btuart_hci_flush;
+	hdev->send     = btuart_hci_send_frame;
+	hdev->destruct = btuart_hci_destruct;
+	hdev->ioctl    = btuart_hci_ioctl;
+
+	hdev->owner = THIS_MODULE;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Reset UART */
+	outb(0, iobase + UART_MCR);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	/* Initialize UART */
+	outb(UART_LCR_WLEN8, iobase + UART_LCR);	/* Reset DLAB */
+	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
+
+	/* Turn on interrupts */
+	// outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	btuart_change_speed(info, DEFAULT_BAUD_RATE);
+
+	/* Timeout before it is safe to send the first HCI packet */
+	msleep(1000);
+
+	/* Register HCI device */
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		info->hdev = NULL;
+		hci_free_dev(hdev);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+
+static int btuart_close(btuart_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev = info->hdev;
+
+	if (!hdev)
+		return -ENODEV;
+
+	btuart_hci_close(hdev);
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Reset UART */
+	outb(0, iobase + UART_MCR);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+
+	return 0;
+}
+
+static dev_link_t *btuart_attach(void)
+{
+	btuart_info_t *info;
+	client_reg_t client_reg;
+	dev_link_t *link;
+	int ret;
+
+	/* Create new info device */
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return NULL;
+	memset(info, 0, sizeof(*info));
+
+	link = &info->link;
+	link->priv = info;
+
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+	link->io.NumPorts1 = 8;
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+
+	link->irq.Handler = btuart_interrupt;
+	link->irq.Instance = info;
+
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.Vcc = 50;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	/* Register with Card Services */
+	link->next = dev_list;
+	dev_list = link;
+	client_reg.dev_info = &dev_info;
+	client_reg.EventMask =
+		CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+		CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+		CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+	client_reg.event_handler = &btuart_event;
+	client_reg.Version = 0x0210;
+	client_reg.event_callback_args.client_data = link;
+
+	ret = pcmcia_register_client(&link->handle, &client_reg);
+	if (ret != CS_SUCCESS) {
+		cs_error(link->handle, RegisterClient, ret);
+		btuart_detach(link);
+		return NULL;
+	}
+
+	return link;
+}
+
+
+static void btuart_detach(dev_link_t *link)
+{
+	btuart_info_t *info = link->priv;
+	dev_link_t **linkp;
+	int ret;
+
+	/* Locate device structure */
+	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+		if (*linkp == link)
+			break;
+
+	if (*linkp == NULL)
+		return;
+
+	if (link->state & DEV_CONFIG)
+		btuart_release(link);
+
+	if (link->handle) {
+		ret = pcmcia_deregister_client(link->handle);
+		if (ret != CS_SUCCESS)
+			cs_error(link->handle, DeregisterClient, ret);
+	}
+
+	/* Unlink device structure, free bits */
+	*linkp = link->next;
+
+	kfree(info);
+}
+
+static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	int i;
+
+	i = pcmcia_get_tuple_data(handle, tuple);
+	if (i != CS_SUCCESS)
+		return i;
+
+	return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+	return get_tuple(handle, tuple, parse);
+}
+
+static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+	return get_tuple(handle, tuple, parse);
+}
+
+static void btuart_config(dev_link_t *link)
+{
+	static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+	client_handle_t handle = link->handle;
+	btuart_info_t *info = link->priv;
+	tuple_t tuple;
+	u_short buf[256];
+	cisparse_t parse;
+	cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+	config_info_t config;
+	int i, j, try, last_ret, last_fn;
+
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+
+	/* Get configuration register information */
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	last_ret = first_tuple(handle, &tuple, &parse);
+	if (last_ret != CS_SUCCESS) {
+		last_fn = ParseTuple;
+		goto cs_failed;
+	}
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+
+	/* Configure card */
+	link->state |= DEV_CONFIG;
+	i = pcmcia_get_configuration_info(handle, &config);
+	link->conf.Vcc = config.Vcc;
+
+	/* First pass: look for a config entry that looks normal. */
+	tuple.TupleData = (cisdata_t *) buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+	/* Two tries: without IO aliases, then with aliases */
+	for (try = 0; try < 2; try++) {
+		i = first_tuple(handle, &tuple, &parse);
+		while (i != CS_NO_MORE_ITEMS) {
+			if (i != CS_SUCCESS)
+				goto next_entry;
+			if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
+				link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
+			if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
+				link->conf.ConfigIndex = cf->index;
+				link->io.BasePort1 = cf->io.win[0].base;
+				link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
+				i = pcmcia_request_io(link->handle, &link->io);
+				if (i == CS_SUCCESS)
+					goto found_port;
+			}
+next_entry:
+			i = next_tuple(handle, &tuple, &parse);
+		}
+	}
+
+	/* Second pass: try to find an entry that isn't picky about
+	   its base address, then try to grab any standard serial port
+	   address, and finally try to get any free port. */
+	i = first_tuple(handle, &tuple, &parse);
+	while (i != CS_NO_MORE_ITEMS) {
+		if ((i == CS_SUCCESS) && (cf->io.nwin > 0)
+		    && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
+			link->conf.ConfigIndex = cf->index;
+			for (j = 0; j < 5; j++) {
+				link->io.BasePort1 = base[j];
+				link->io.IOAddrLines = base[j] ? 16 : 3;
+				i = pcmcia_request_io(link->handle, &link->io);
+				if (i == CS_SUCCESS)
+					goto found_port;
+			}
+		}
+		i = next_tuple(handle, &tuple, &parse);
+	}
+
+found_port:
+	if (i != CS_SUCCESS) {
+		BT_ERR("No usable port range found");
+		cs_error(link->handle, RequestIO, i);
+		goto failed;
+	}
+
+	i = pcmcia_request_irq(link->handle, &link->irq);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIRQ, i);
+		link->irq.AssignedIRQ = 0;
+	}
+
+	i = pcmcia_request_configuration(link->handle, &link->conf);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestConfiguration, i);
+		goto failed;
+	}
+
+	if (btuart_open(info) != 0)
+		goto failed;
+
+	strcpy(info->node.dev_name, info->hdev->name);
+	link->dev = &info->node;
+	link->state &= ~DEV_CONFIG_PENDING;
+
+	return;
+
+cs_failed:
+	cs_error(link->handle, last_fn, last_ret);
+
+failed:
+	btuart_release(link);
+}
+
+
+static void btuart_release(dev_link_t *link)
+{
+	btuart_info_t *info = link->priv;
+
+	if (link->state & DEV_PRESENT)
+		btuart_close(info);
+
+	link->dev = NULL;
+
+	pcmcia_release_configuration(link->handle);
+	pcmcia_release_io(link->handle, &link->io);
+	pcmcia_release_irq(link->handle, &link->irq);
+
+	link->state &= ~DEV_CONFIG;
+}
+
+
+static int btuart_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	btuart_info_t *info = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			btuart_close(info);
+			btuart_release(link);
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+		btuart_config(link);
+		break;
+	case CS_EVENT_PM_SUSPEND:
+		link->state |= DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		if (link->state & DEV_CONFIG)
+			pcmcia_release_configuration(link->handle);
+		break;
+	case CS_EVENT_PM_RESUME:
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		if (DEV_OK(link))
+			pcmcia_request_configuration(link->handle, &link->conf);
+		break;
+	}
+
+	return 0;
+}
+
+static struct pcmcia_driver btuart_driver = {
+	.owner		= THIS_MODULE,
+	.drv		= {
+		.name	= "btuart_cs",
+	},
+	.attach		= btuart_attach,
+	.detach		= btuart_detach,
+};
+
+static int __init init_btuart_cs(void)
+{
+	return pcmcia_register_driver(&btuart_driver);
+}
+
+
+static void __exit exit_btuart_cs(void)
+{
+	pcmcia_unregister_driver(&btuart_driver);
+	BUG_ON(dev_list != NULL);
+}
+
+module_init(init_btuart_cs);
+module_exit(exit_btuart_cs);
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
new file mode 100644
index 0000000..fe954e5
--- /dev/null
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -0,0 +1,832 @@
+/*
+ *
+ *  A driver for Nokia Connectivity Card DTL-1 devices
+ *
+ *  Copyright (C) 2001-2002  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 version 2 as
+ *  published by the Free Software Foundation;
+ *
+ *  Software distributed under the License is distributed on an "AS
+ *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ *  implied. See the License for the specific language governing
+ *  rights and limitations under the License.
+ *
+ *  The initial developer of the original code is David A. Hinds
+ *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+ *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+ *
+ */
+
+#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/delay.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+#include <linux/moduleparam.h>
+
+#include <linux/skbuff.h>
+#include <linux/string.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+#include <linux/bitops.h>
+#include <asm/system.h>
+#include <asm/io.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+
+
+/* ======================== Module parameters ======================== */
+
+
+MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1");
+MODULE_LICENSE("GPL");
+
+
+
+/* ======================== Local structures ======================== */
+
+
+typedef struct dtl1_info_t {
+	dev_link_t link;
+	dev_node_t node;
+
+	struct hci_dev *hdev;
+
+	spinlock_t lock;		/* For serializing operations */
+
+	unsigned long flowmask;		/* HCI flow mask */
+	int ri_latch;
+
+	struct sk_buff_head txq;
+	unsigned long tx_state;
+
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+} dtl1_info_t;
+
+
+static void dtl1_config(dev_link_t *link);
+static void dtl1_release(dev_link_t *link);
+static int dtl1_event(event_t event, int priority, event_callback_args_t *args);
+
+static dev_info_t dev_info = "dtl1_cs";
+
+static dev_link_t *dtl1_attach(void);
+static void dtl1_detach(dev_link_t *);
+
+static dev_link_t *dev_list = NULL;
+
+
+/* Transmit states  */
+#define XMIT_SENDING  1
+#define XMIT_WAKEUP   2
+#define XMIT_WAITING  8
+
+/* Receiver States */
+#define RECV_WAIT_NSH   0
+#define RECV_WAIT_DATA  1
+
+
+typedef struct {
+	u8 type;
+	u8 zero;
+	u16 len;
+} __attribute__ ((packed)) nsh_t;	/* Nokia Specific Header */
+
+#define NSHL  4				/* Nokia Specific Header Length */
+
+
+
+/* ======================== Interrupt handling ======================== */
+
+
+static int dtl1_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
+{
+	int actual = 0;
+
+	/* Tx FIFO should be empty */
+	if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
+		return 0;
+
+	/* Fill FIFO with current frame */
+	while ((fifo_size-- > 0) && (actual < len)) {
+		/* Transmit next byte */
+		outb(buf[actual], iobase + UART_TX);
+		actual++;
+	}
+
+	return actual;
+}
+
+
+static void dtl1_write_wakeup(dtl1_info_t *info)
+{
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	if (test_bit(XMIT_WAITING, &(info->tx_state))) {
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+		return;
+	}
+
+	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
+		set_bit(XMIT_WAKEUP, &(info->tx_state));
+		return;
+	}
+
+	do {
+		register unsigned int iobase = info->link.io.BasePort1;
+		register struct sk_buff *skb;
+		register int len;
+
+		clear_bit(XMIT_WAKEUP, &(info->tx_state));
+
+		if (!(info->link.state & DEV_PRESENT))
+			return;
+
+		if (!(skb = skb_dequeue(&(info->txq))))
+			break;
+
+		/* Send frame */
+		len = dtl1_write(iobase, 32, skb->data, skb->len);
+
+		if (len == skb->len) {
+			set_bit(XMIT_WAITING, &(info->tx_state));
+			kfree_skb(skb);
+		} else {
+			skb_pull(skb, len);
+			skb_queue_head(&(info->txq), skb);
+		}
+
+		info->hdev->stat.byte_tx += len;
+
+	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
+
+	clear_bit(XMIT_SENDING, &(info->tx_state));
+}
+
+
+static void dtl1_control(dtl1_info_t *info, struct sk_buff *skb)
+{
+	u8 flowmask = *(u8 *)skb->data;
+	int i;
+
+	printk(KERN_INFO "Bluetooth: Nokia control data =");
+	for (i = 0; i < skb->len; i++) {
+		printk(" %02x", skb->data[i]);
+	}
+	printk("\n");
+
+	/* transition to active state */
+	if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) {
+		clear_bit(XMIT_WAITING, &(info->tx_state));
+		dtl1_write_wakeup(info);
+	}
+
+	info->flowmask = flowmask;
+
+	kfree_skb(skb);
+}
+
+
+static void dtl1_receive(dtl1_info_t *info)
+{
+	unsigned int iobase;
+	nsh_t *nsh;
+	int boguscount = 0;
+
+	if (!info) {
+		BT_ERR("Unknown device");
+		return;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	do {
+		info->hdev->stat.byte_rx++;
+
+		/* Allocate packet */
+		if (info->rx_skb == NULL)
+			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
+				BT_ERR("Can't allocate mem for new packet");
+				info->rx_state = RECV_WAIT_NSH;
+				info->rx_count = NSHL;
+				return;
+			}
+
+		*skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
+		nsh = (nsh_t *)info->rx_skb->data;
+
+		info->rx_count--;
+
+		if (info->rx_count == 0) {
+
+			switch (info->rx_state) {
+			case RECV_WAIT_NSH:
+				info->rx_state = RECV_WAIT_DATA;
+				info->rx_count = nsh->len + (nsh->len & 0x0001);
+				break;
+			case RECV_WAIT_DATA:
+				info->rx_skb->pkt_type = nsh->type;
+
+				/* remove PAD byte if it exists */
+				if (nsh->len & 0x0001) {
+					info->rx_skb->tail--;
+					info->rx_skb->len--;
+				}
+
+				/* remove NSH */
+				skb_pull(info->rx_skb, NSHL);
+
+				switch (info->rx_skb->pkt_type) {
+				case 0x80:
+					/* control data for the Nokia Card */
+					dtl1_control(info, info->rx_skb);
+					break;
+				case 0x82:
+				case 0x83:
+				case 0x84:
+					/* send frame to the HCI layer */
+					info->rx_skb->dev = (void *) info->hdev;
+					info->rx_skb->pkt_type &= 0x0f;
+					hci_recv_frame(info->rx_skb);
+					break;
+				default:
+					/* unknown packet */
+					BT_ERR("Unknown HCI packet with type 0x%02x received", info->rx_skb->pkt_type);
+					kfree_skb(info->rx_skb);
+					break;
+				}
+
+				info->rx_state = RECV_WAIT_NSH;
+				info->rx_count = NSHL;
+				info->rx_skb = NULL;
+				break;
+			}
+
+		}
+
+		/* Make sure we don't stay here too long */
+		if (boguscount++ > 32)
+			break;
+
+	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
+}
+
+
+static irqreturn_t dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
+{
+	dtl1_info_t *info = dev_inst;
+	unsigned int iobase;
+	unsigned char msr;
+	int boguscount = 0;
+	int iir, lsr;
+
+	if (!info || !info->hdev) {
+		BT_ERR("Call of irq %d for unknown device", irq);
+		return IRQ_NONE;
+	}
+
+	iobase = info->link.io.BasePort1;
+
+	spin_lock(&(info->lock));
+
+	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
+	while (iir) {
+
+		/* Clear interrupt */
+		lsr = inb(iobase + UART_LSR);
+
+		switch (iir) {
+		case UART_IIR_RLSI:
+			BT_ERR("RLSI");
+			break;
+		case UART_IIR_RDI:
+			/* Receive interrupt */
+			dtl1_receive(info);
+			break;
+		case UART_IIR_THRI:
+			if (lsr & UART_LSR_THRE) {
+				/* Transmitter ready for data */
+				dtl1_write_wakeup(info);
+			}
+			break;
+		default:
+			BT_ERR("Unhandled IIR=%#x", iir);
+			break;
+		}
+
+		/* Make sure we don't stay here too long */
+		if (boguscount++ > 100)
+			break;
+
+		iir = inb(iobase + UART_IIR) & UART_IIR_ID;
+
+	}
+
+	msr = inb(iobase + UART_MSR);
+
+	if (info->ri_latch ^ (msr & UART_MSR_RI)) {
+		info->ri_latch = msr & UART_MSR_RI;
+		clear_bit(XMIT_WAITING, &(info->tx_state));
+		dtl1_write_wakeup(info);
+	}
+
+	spin_unlock(&(info->lock));
+
+	return IRQ_HANDLED;
+}
+
+
+
+/* ======================== HCI interface ======================== */
+
+
+static int dtl1_hci_open(struct hci_dev *hdev)
+{
+	set_bit(HCI_RUNNING, &(hdev->flags));
+
+	return 0;
+}
+
+
+static int dtl1_hci_flush(struct hci_dev *hdev)
+{
+	dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data);
+
+	/* Drop TX queue */
+	skb_queue_purge(&(info->txq));
+
+	return 0;
+}
+
+
+static int dtl1_hci_close(struct hci_dev *hdev)
+{
+	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
+		return 0;
+
+	dtl1_hci_flush(hdev);
+
+	return 0;
+}
+
+
+static int dtl1_hci_send_frame(struct sk_buff *skb)
+{
+	dtl1_info_t *info;
+	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
+	struct sk_buff *s;
+	nsh_t nsh;
+
+	if (!hdev) {
+		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	info = (dtl1_info_t *)(hdev->driver_data);
+
+	switch (skb->pkt_type) {
+	case HCI_COMMAND_PKT:
+		hdev->stat.cmd_tx++;
+		nsh.type = 0x81;
+		break;
+	case HCI_ACLDATA_PKT:
+		hdev->stat.acl_tx++;
+		nsh.type = 0x82;
+		break;
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		nsh.type = 0x83;
+		break;
+	};
+
+	nsh.zero = 0;
+	nsh.len = skb->len;
+
+	s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
+	skb_reserve(s, NSHL);
+	memcpy(skb_put(s, skb->len), skb->data, skb->len);
+	if (skb->len & 0x0001)
+		*skb_put(s, 1) = 0;	/* PAD */
+
+	/* Prepend skb with Nokia frame header and queue */
+	memcpy(skb_push(s, NSHL), &nsh, NSHL);
+	skb_queue_tail(&(info->txq), s);
+
+	dtl1_write_wakeup(info);
+
+	kfree_skb(skb);
+
+	return 0;
+}
+
+
+static void dtl1_hci_destruct(struct hci_dev *hdev)
+{
+}
+
+
+static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd,  unsigned long arg)
+{
+	return -ENOIOCTLCMD;
+}
+
+
+
+/* ======================== Card services HCI interaction ======================== */
+
+
+static int dtl1_open(dtl1_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev;
+
+	spin_lock_init(&(info->lock));
+
+	skb_queue_head_init(&(info->txq));
+
+	info->rx_state = RECV_WAIT_NSH;
+	info->rx_count = NSHL;
+	info->rx_skb = NULL;
+
+	set_bit(XMIT_WAITING, &(info->tx_state));
+
+	/* Initialize HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		return -ENOMEM;
+	}
+
+	info->hdev = hdev;
+
+	hdev->type = HCI_PCCARD;
+	hdev->driver_data = info;
+
+	hdev->open     = dtl1_hci_open;
+	hdev->close    = dtl1_hci_close;
+	hdev->flush    = dtl1_hci_flush;
+	hdev->send     = dtl1_hci_send_frame;
+	hdev->destruct = dtl1_hci_destruct;
+	hdev->ioctl    = dtl1_hci_ioctl;
+
+	hdev->owner = THIS_MODULE;
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Reset UART */
+	outb(0, iobase + UART_MCR);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	/* Initialize UART */
+	outb(UART_LCR_WLEN8, iobase + UART_LCR);	/* Reset DLAB */
+	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
+
+	info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI;
+
+	/* Turn on interrupts */
+	outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	/* Timeout before it is safe to send the first HCI packet */
+	msleep(2000);
+
+	/* Register HCI device */
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		info->hdev = NULL;
+		hci_free_dev(hdev);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+
+static int dtl1_close(dtl1_info_t *info)
+{
+	unsigned long flags;
+	unsigned int iobase = info->link.io.BasePort1;
+	struct hci_dev *hdev = info->hdev;
+
+	if (!hdev)
+		return -ENODEV;
+
+	dtl1_hci_close(hdev);
+
+	spin_lock_irqsave(&(info->lock), flags);
+
+	/* Reset UART */
+	outb(0, iobase + UART_MCR);
+
+	/* Turn off interrupts */
+	outb(0, iobase + UART_IER);
+
+	spin_unlock_irqrestore(&(info->lock), flags);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+
+	return 0;
+}
+
+static dev_link_t *dtl1_attach(void)
+{
+	dtl1_info_t *info;
+	client_reg_t client_reg;
+	dev_link_t *link;
+	int ret;
+
+	/* Create new info device */
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return NULL;
+	memset(info, 0, sizeof(*info));
+
+	link = &info->link;
+	link->priv = info;
+
+	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+	link->io.NumPorts1 = 8;
+	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
+	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+
+	link->irq.Handler = dtl1_interrupt;
+	link->irq.Instance = info;
+
+	link->conf.Attributes = CONF_ENABLE_IRQ;
+	link->conf.Vcc = 50;
+	link->conf.IntType = INT_MEMORY_AND_IO;
+
+	/* Register with Card Services */
+	link->next = dev_list;
+	dev_list = link;
+	client_reg.dev_info = &dev_info;
+	client_reg.EventMask =
+		CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+		CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+		CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+	client_reg.event_handler = &dtl1_event;
+	client_reg.Version = 0x0210;
+	client_reg.event_callback_args.client_data = link;
+
+	ret = pcmcia_register_client(&link->handle, &client_reg);
+	if (ret != CS_SUCCESS) {
+		cs_error(link->handle, RegisterClient, ret);
+		dtl1_detach(link);
+		return NULL;
+	}
+
+	return link;
+}
+
+
+static void dtl1_detach(dev_link_t *link)
+{
+	dtl1_info_t *info = link->priv;
+	dev_link_t **linkp;
+	int ret;
+
+	/* Locate device structure */
+	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+		if (*linkp == link)
+			break;
+
+	if (*linkp == NULL)
+		return;
+
+	if (link->state & DEV_CONFIG)
+		dtl1_release(link);
+
+	if (link->handle) {
+		ret = pcmcia_deregister_client(link->handle);
+		if (ret != CS_SUCCESS)
+			cs_error(link->handle, DeregisterClient, ret);
+	}
+
+	/* Unlink device structure, free bits */
+	*linkp = link->next;
+
+	kfree(info);
+}
+
+static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	int i;
+
+	i = pcmcia_get_tuple_data(handle, tuple);
+	if (i != CS_SUCCESS)
+		return i;
+
+	return pcmcia_parse_tuple(handle, tuple, parse);
+}
+
+static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+	return get_tuple(handle, tuple, parse);
+}
+
+static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
+{
+	if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
+		return CS_NO_MORE_ITEMS;
+	return get_tuple(handle, tuple, parse);
+}
+
+static void dtl1_config(dev_link_t *link)
+{
+	client_handle_t handle = link->handle;
+	dtl1_info_t *info = link->priv;
+	tuple_t tuple;
+	u_short buf[256];
+	cisparse_t parse;
+	cistpl_cftable_entry_t *cf = &parse.cftable_entry;
+	config_info_t config;
+	int i, last_ret, last_fn;
+
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+
+	/* Get configuration register information */
+	tuple.DesiredTuple = CISTPL_CONFIG;
+	last_ret = first_tuple(handle, &tuple, &parse);
+	if (last_ret != CS_SUCCESS) {
+		last_fn = ParseTuple;
+		goto cs_failed;
+	}
+	link->conf.ConfigBase = parse.config.base;
+	link->conf.Present = parse.config.rmask[0];
+
+	/* Configure card */
+	link->state |= DEV_CONFIG;
+	i = pcmcia_get_configuration_info(handle, &config);
+	link->conf.Vcc = config.Vcc;
+
+	tuple.TupleData = (cisdata_t *)buf;
+	tuple.TupleOffset = 0;
+	tuple.TupleDataMax = 255;
+	tuple.Attributes = 0;
+	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+
+	/* Look for a generic full-sized window */
+	link->io.NumPorts1 = 8;
+	i = first_tuple(handle, &tuple, &parse);
+	while (i != CS_NO_MORE_ITEMS) {
+		if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) {
+			link->conf.ConfigIndex = cf->index;
+			link->io.BasePort1 = cf->io.win[0].base;
+			link->io.NumPorts1 = cf->io.win[0].len;	/*yo */
+			link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
+			i = pcmcia_request_io(link->handle, &link->io);
+			if (i == CS_SUCCESS)
+				break;
+		}
+		i = next_tuple(handle, &tuple, &parse);
+	}
+
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIO, i);
+		goto failed;
+	}
+
+	i = pcmcia_request_irq(link->handle, &link->irq);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestIRQ, i);
+		link->irq.AssignedIRQ = 0;
+	}
+
+	i = pcmcia_request_configuration(link->handle, &link->conf);
+	if (i != CS_SUCCESS) {
+		cs_error(link->handle, RequestConfiguration, i);
+		goto failed;
+	}
+
+	if (dtl1_open(info) != 0)
+		goto failed;
+
+	strcpy(info->node.dev_name, info->hdev->name);
+	link->dev = &info->node;
+	link->state &= ~DEV_CONFIG_PENDING;
+
+	return;
+
+cs_failed:
+	cs_error(link->handle, last_fn, last_ret);
+
+failed:
+	dtl1_release(link);
+}
+
+
+static void dtl1_release(dev_link_t *link)
+{
+	dtl1_info_t *info = link->priv;
+
+	if (link->state & DEV_PRESENT)
+		dtl1_close(info);
+
+	link->dev = NULL;
+
+	pcmcia_release_configuration(link->handle);
+	pcmcia_release_io(link->handle, &link->io);
+	pcmcia_release_irq(link->handle, &link->irq);
+
+	link->state &= ~DEV_CONFIG;
+}
+
+
+static int dtl1_event(event_t event, int priority, event_callback_args_t *args)
+{
+	dev_link_t *link = args->client_data;
+	dtl1_info_t *info = link->priv;
+
+	switch (event) {
+	case CS_EVENT_CARD_REMOVAL:
+		link->state &= ~DEV_PRESENT;
+		if (link->state & DEV_CONFIG) {
+			dtl1_close(info);
+			dtl1_release(link);
+		}
+		break;
+	case CS_EVENT_CARD_INSERTION:
+		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+		dtl1_config(link);
+		break;
+	case CS_EVENT_PM_SUSPEND:
+		link->state |= DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_RESET_PHYSICAL:
+		if (link->state & DEV_CONFIG)
+			pcmcia_release_configuration(link->handle);
+		break;
+	case CS_EVENT_PM_RESUME:
+		link->state &= ~DEV_SUSPEND;
+		/* Fall through... */
+	case CS_EVENT_CARD_RESET:
+		if (DEV_OK(link))
+			pcmcia_request_configuration(link->handle, &link->conf);
+		break;
+	}
+
+	return 0;
+}
+
+static struct pcmcia_driver dtl1_driver = {
+	.owner		= THIS_MODULE,
+	.drv		= {
+		.name	= "dtl1_cs",
+	},
+	.attach		= dtl1_attach,
+	.detach		= dtl1_detach,
+};
+
+static int __init init_dtl1_cs(void)
+{
+	return pcmcia_register_driver(&dtl1_driver);
+}
+
+
+static void __exit exit_dtl1_cs(void)
+{
+	pcmcia_unregister_driver(&dtl1_driver);
+	BUG_ON(dev_list != NULL);
+}
+
+module_init(init_dtl1_cs);
+module_exit(exit_dtl1_cs);
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
new file mode 100644
index 0000000..c0ed213
--- /dev/null
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -0,0 +1,749 @@
+/* 
+   BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ).
+   Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com>
+
+   Based on
+       hci_h4.c  by Maxim Krasnyansky <maxk@qualcomm.com>
+       ABCSP     by Carl Orsborn <cjo@csr.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * $Id: hci_bcsp.c,v 1.2 2002/09/26 05:05:14 maxk Exp $
+ */
+
+#define VERSION "0.2"
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/poll.h>
+
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/signal.h>
+#include <linux/ioctl.h>
+#include <linux/skbuff.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include "hci_uart.h"
+#include "hci_bcsp.h"
+
+#ifndef CONFIG_BT_HCIUART_DEBUG
+#undef  BT_DBG
+#define BT_DBG( A... )
+#undef  BT_DMP
+#define BT_DMP( A... )
+#endif
+
+static int hciextn = 1;
+
+/* ---- BCSP CRC calculation ---- */
+
+/* Table for calculating CRC for polynomial 0x1021, LSB processed first,
+initial value 0xffff, bits shifted in reverse order. */
+
+static const u16 crc_table[] = {
+	0x0000, 0x1081, 0x2102, 0x3183,
+	0x4204, 0x5285, 0x6306, 0x7387,
+	0x8408, 0x9489, 0xa50a, 0xb58b,
+	0xc60c, 0xd68d, 0xe70e, 0xf78f
+};
+
+/* Initialise the crc calculator */
+#define BCSP_CRC_INIT(x) x = 0xffff
+
+/*
+   Update crc with next data byte
+
+   Implementation note
+        The data byte is treated as two nibbles.  The crc is generated
+        in reverse, i.e., bits are fed into the register from the top.
+*/
+static void bcsp_crc_update(u16 *crc, u8 d)
+{
+	u16 reg = *crc;
+
+	reg = (reg >> 4) ^ crc_table[(reg ^ d) & 0x000f];
+	reg = (reg >> 4) ^ crc_table[(reg ^ (d >> 4)) & 0x000f];
+
+	*crc = reg;
+}
+
+/*
+   Get reverse of generated crc
+
+   Implementation note
+        The crc generator (bcsp_crc_init() and bcsp_crc_update())
+        creates a reversed crc, so it needs to be swapped back before
+        being passed on.
+*/
+static u16 bcsp_crc_reverse(u16 crc)
+{
+	u16 b, rev;
+
+	for (b = 0, rev = 0; b < 16; b++) {
+		rev = rev << 1;
+		rev |= (crc & 1);
+		crc = crc >> 1;
+	}
+	return (rev);
+}
+
+/* ---- BCSP core ---- */
+
+static void bcsp_slip_msgdelim(struct sk_buff *skb)
+{
+	const char pkt_delim = 0xc0;
+	memcpy(skb_put(skb, 1), &pkt_delim, 1);
+}
+
+static void bcsp_slip_one_byte(struct sk_buff *skb, u8 c)
+{
+	const char esc_c0[2] = { 0xdb, 0xdc };
+	const char esc_db[2] = { 0xdb, 0xdd };
+
+	switch (c) {
+	case 0xc0:
+		memcpy(skb_put(skb, 2), &esc_c0, 2);
+		break;
+	case 0xdb:
+		memcpy(skb_put(skb, 2), &esc_db, 2);
+		break;
+	default:
+		memcpy(skb_put(skb, 1), &c, 1);
+	}
+}
+
+static int bcsp_enqueue(struct hci_uart *hu, struct sk_buff *skb)
+{
+	struct bcsp_struct *bcsp = hu->priv;
+
+	if (skb->len > 0xFFF) {
+		BT_ERR("Packet too long");
+		kfree_skb(skb);
+		return 0;
+	}
+
+	switch (skb->pkt_type) {
+	case HCI_ACLDATA_PKT:
+	case HCI_COMMAND_PKT:
+		skb_queue_tail(&bcsp->rel, skb);
+		break;
+
+	case HCI_SCODATA_PKT:
+		skb_queue_tail(&bcsp->unrel, skb);
+		break;
+
+	default:
+		BT_ERR("Unknown packet type");
+		kfree_skb(skb);
+		break;
+	}
+
+	return 0;
+}
+
+static struct sk_buff *bcsp_prepare_pkt(struct bcsp_struct *bcsp, u8 *data,
+		int len, int pkt_type)
+{
+	struct sk_buff *nskb;
+	u8 hdr[4], chan;
+	int rel, i;
+
+#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
+	u16 BCSP_CRC_INIT(bcsp_txmsg_crc);
+#endif
+
+	switch (pkt_type) {
+	case HCI_ACLDATA_PKT:
+		chan = 6;	/* BCSP ACL channel */
+		rel = 1;	/* reliable channel */
+		break;
+	case HCI_COMMAND_PKT:
+		chan = 5;	/* BCSP cmd/evt channel */
+		rel = 1;	/* reliable channel */
+		break;
+	case HCI_SCODATA_PKT:
+		chan = 7;	/* BCSP SCO channel */
+		rel = 0;	/* unreliable channel */
+		break;
+	case BCSP_LE_PKT:
+		chan = 1;	/* BCSP LE channel */
+		rel = 0;	/* unreliable channel */
+		break;
+	case BCSP_ACK_PKT:
+		chan = 0;	/* BCSP internal channel */
+		rel = 0;	/* unreliable channel */
+		break;
+	default:
+		BT_ERR("Unknown packet type");
+		return NULL;
+	}
+
+	if (hciextn && chan == 5) {
+		struct hci_command_hdr *hdr = (struct hci_command_hdr *) data;
+
+		if (hci_opcode_ogf(__le16_to_cpu(hdr->opcode)) == OGF_VENDOR_CMD) {
+			u8 desc = *(data + HCI_COMMAND_HDR_SIZE);
+			if ((desc & 0xf0) == 0xc0) {
+				data += HCI_COMMAND_HDR_SIZE + 1;
+				len  -= HCI_COMMAND_HDR_SIZE + 1;
+				chan = desc & 0x0f;
+			}
+		}
+	}
+
+	/* Max len of packet: (original len +4(bcsp hdr) +2(crc))*2
+	   (because bytes 0xc0 and 0xdb are escaped, worst case is
+	   when the packet is all made of 0xc0 and 0xdb :) )
+	   + 2 (0xc0 delimiters at start and end). */
+
+	nskb = alloc_skb((len + 6) * 2 + 2, GFP_ATOMIC);
+	if (!nskb)
+		return NULL;
+
+	nskb->pkt_type = pkt_type;
+
+	bcsp_slip_msgdelim(nskb);
+
+	hdr[0] = bcsp->rxseq_txack << 3;
+	bcsp->txack_req = 0;
+	BT_DBG("We request packet no %u to card", bcsp->rxseq_txack);
+
+	if (rel) {
+		hdr[0] |= 0x80 + bcsp->msgq_txseq;
+		BT_DBG("Sending packet with seqno %u", bcsp->msgq_txseq);
+		bcsp->msgq_txseq = ++(bcsp->msgq_txseq) & 0x07;
+	}
+#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
+	hdr[0] |= 0x40;
+#endif
+
+	hdr[1] = ((len << 4) & 0xff) | chan;
+	hdr[2] = len >> 4;
+	hdr[3] = ~(hdr[0] + hdr[1] + hdr[2]);
+
+	/* Put BCSP header */
+	for (i = 0; i < 4; i++) {
+		bcsp_slip_one_byte(nskb, hdr[i]);
+#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
+		bcsp_crc_update(&bcsp_txmsg_crc, hdr[i]);
+#endif
+	}
+
+	/* Put payload */
+	for (i = 0; i < len; i++) {
+		bcsp_slip_one_byte(nskb, data[i]);
+#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
+		bcsp_crc_update(&bcsp_txmsg_crc, data[i]);
+#endif
+	}
+
+#ifdef CONFIG_BT_HCIUART_BCSP_TXCRC
+	/* Put CRC */
+	bcsp_txmsg_crc = bcsp_crc_reverse(bcsp_txmsg_crc);
+	bcsp_slip_one_byte(nskb, (u8) ((bcsp_txmsg_crc >> 8) & 0x00ff));
+	bcsp_slip_one_byte(nskb, (u8) (bcsp_txmsg_crc & 0x00ff));
+#endif
+
+	bcsp_slip_msgdelim(nskb);
+	return nskb;
+}
+
+/* This is a rewrite of pkt_avail in ABCSP */
+static struct sk_buff *bcsp_dequeue(struct hci_uart *hu)
+{
+	struct bcsp_struct *bcsp = hu->priv;
+	unsigned long flags;
+	struct sk_buff *skb;
+	
+	/* First of all, check for unreliable messages in the queue,
+	   since they have priority */
+
+	if ((skb = skb_dequeue(&bcsp->unrel)) != NULL) {
+		struct sk_buff *nskb = bcsp_prepare_pkt(bcsp, skb->data, skb->len, skb->pkt_type);
+		if (nskb) {
+			kfree_skb(skb);
+			return nskb;
+		} else {
+			skb_queue_head(&bcsp->unrel, skb);
+			BT_ERR("Could not dequeue pkt because alloc_skb failed");
+		}
+	}
+
+	/* Now, try to send a reliable pkt. We can only send a
+	   reliable packet if the number of packets sent but not yet ack'ed
+	   is < than the winsize */
+
+	spin_lock_irqsave(&bcsp->unack.lock, flags);
+
+	if (bcsp->unack.qlen < BCSP_TXWINSIZE && (skb = skb_dequeue(&bcsp->rel)) != NULL) {
+		struct sk_buff *nskb = bcsp_prepare_pkt(bcsp, skb->data, skb->len, skb->pkt_type);
+		if (nskb) {
+			__skb_queue_tail(&bcsp->unack, skb);
+			mod_timer(&bcsp->tbcsp, jiffies + HZ / 4);
+			spin_unlock_irqrestore(&bcsp->unack.lock, flags);
+			return nskb;
+		} else {
+			skb_queue_head(&bcsp->rel, skb);
+			BT_ERR("Could not dequeue pkt because alloc_skb failed");
+		}
+	}
+
+	spin_unlock_irqrestore(&bcsp->unack.lock, flags);
+
+
+	/* We could not send a reliable packet, either because there are
+	   none or because there are too many unack'ed pkts. Did we receive
+	   any packets we have not acknowledged yet ? */
+
+	if (bcsp->txack_req) {
+		/* if so, craft an empty ACK pkt and send it on BCSP unreliable
+		   channel 0 */
+		struct sk_buff *nskb = bcsp_prepare_pkt(bcsp, NULL, 0, BCSP_ACK_PKT);
+		return nskb;
+	}
+
+	/* We have nothing to send */
+	return NULL;
+}
+
+static int bcsp_flush(struct hci_uart *hu)
+{
+	BT_DBG("hu %p", hu);
+	return 0;
+}
+
+/* Remove ack'ed packets */
+static void bcsp_pkt_cull(struct bcsp_struct *bcsp)
+{
+	unsigned long flags;
+	struct sk_buff *skb;
+	int i, pkts_to_be_removed;
+	u8 seqno;
+
+	spin_lock_irqsave(&bcsp->unack.lock, flags);
+
+	pkts_to_be_removed = bcsp->unack.qlen;
+	seqno = bcsp->msgq_txseq;
+
+	while (pkts_to_be_removed) {
+		if (bcsp->rxack == seqno)
+			break;
+		pkts_to_be_removed--;
+		seqno = (seqno - 1) & 0x07;
+	}
+
+	if (bcsp->rxack != seqno)
+		BT_ERR("Peer acked invalid packet");
+
+	BT_DBG("Removing %u pkts out of %u, up to seqno %u",
+	       pkts_to_be_removed, bcsp->unack.qlen, (seqno - 1) & 0x07);
+
+	for (i = 0, skb = ((struct sk_buff *) &bcsp->unack)->next; i < pkts_to_be_removed
+			&& skb != (struct sk_buff *) &bcsp->unack; i++) {
+		struct sk_buff *nskb;
+
+		nskb = skb->next;
+		__skb_unlink(skb, &bcsp->unack);
+		kfree_skb(skb);
+		skb = nskb;
+	}
+	if (bcsp->unack.qlen == 0)
+		del_timer(&bcsp->tbcsp);
+	spin_unlock_irqrestore(&bcsp->unack.lock, flags);
+
+	if (i != pkts_to_be_removed)
+		BT_ERR("Removed only %u out of %u pkts", i, pkts_to_be_removed);
+}
+
+/* Handle BCSP link-establishment packets. When we
+   detect a "sync" packet, symptom that the BT module has reset,
+   we do nothing :) (yet) */
+static void bcsp_handle_le_pkt(struct hci_uart *hu)
+{
+	struct bcsp_struct *bcsp = hu->priv;
+	u8 conf_pkt[4]     = { 0xad, 0xef, 0xac, 0xed };
+	u8 conf_rsp_pkt[4] = { 0xde, 0xad, 0xd0, 0xd0 };
+	u8 sync_pkt[4]     = { 0xda, 0xdc, 0xed, 0xed };
+
+	/* spot "conf" pkts and reply with a "conf rsp" pkt */
+	if (bcsp->rx_skb->data[1] >> 4 == 4 && bcsp->rx_skb->data[2] == 0 &&
+			!memcmp(&bcsp->rx_skb->data[4], conf_pkt, 4)) {
+		struct sk_buff *nskb = alloc_skb(4, GFP_ATOMIC);
+
+		BT_DBG("Found a LE conf pkt");
+		if (!nskb)
+			return;
+		memcpy(skb_put(nskb, 4), conf_rsp_pkt, 4);
+		nskb->pkt_type = BCSP_LE_PKT;
+
+		skb_queue_head(&bcsp->unrel, nskb);
+		hci_uart_tx_wakeup(hu);
+	}
+	/* Spot "sync" pkts. If we find one...disaster! */
+	else if (bcsp->rx_skb->data[1] >> 4 == 4 && bcsp->rx_skb->data[2] == 0 &&
+			!memcmp(&bcsp->rx_skb->data[4], sync_pkt, 4)) {
+		BT_ERR("Found a LE sync pkt, card has reset");
+	}
+}
+
+static inline void bcsp_unslip_one_byte(struct bcsp_struct *bcsp, unsigned char byte)
+{
+	const u8 c0 = 0xc0, db = 0xdb;
+
+	switch (bcsp->rx_esc_state) {
+	case BCSP_ESCSTATE_NOESC:
+		switch (byte) {
+		case 0xdb:
+			bcsp->rx_esc_state = BCSP_ESCSTATE_ESC;
+			break;
+		default:
+			memcpy(skb_put(bcsp->rx_skb, 1), &byte, 1);
+			if ((bcsp->rx_skb-> data[0] & 0x40) != 0 && 
+					bcsp->rx_state != BCSP_W4_CRC)
+				bcsp_crc_update(&bcsp->message_crc, byte);
+			bcsp->rx_count--;
+		}
+		break;
+
+	case BCSP_ESCSTATE_ESC:
+		switch (byte) {
+		case 0xdc:
+			memcpy(skb_put(bcsp->rx_skb, 1), &c0, 1);
+			if ((bcsp->rx_skb-> data[0] & 0x40) != 0 && 
+					bcsp->rx_state != BCSP_W4_CRC)
+				bcsp_crc_update(&bcsp-> message_crc, 0xc0);
+			bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
+			bcsp->rx_count--;
+			break;
+
+		case 0xdd:
+			memcpy(skb_put(bcsp->rx_skb, 1), &db, 1);
+			if ((bcsp->rx_skb-> data[0] & 0x40) != 0 && 
+					bcsp->rx_state != BCSP_W4_CRC) 
+				bcsp_crc_update(&bcsp-> message_crc, 0xdb);
+			bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
+			bcsp->rx_count--;
+			break;
+
+		default:
+			BT_ERR ("Invalid byte %02x after esc byte", byte);
+			kfree_skb(bcsp->rx_skb);
+			bcsp->rx_skb = NULL;
+			bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+			bcsp->rx_count = 0;
+		}
+	}
+}
+
+static inline void bcsp_complete_rx_pkt(struct hci_uart *hu)
+{
+	struct bcsp_struct *bcsp = hu->priv;
+	int pass_up;
+
+	if (bcsp->rx_skb->data[0] & 0x80) {	/* reliable pkt */
+		BT_DBG("Received seqno %u from card", bcsp->rxseq_txack);
+		bcsp->rxseq_txack++;
+		bcsp->rxseq_txack %= 0x8;
+		bcsp->txack_req    = 1;
+
+		/* If needed, transmit an ack pkt */
+		hci_uart_tx_wakeup(hu);
+	}
+
+	bcsp->rxack = (bcsp->rx_skb->data[0] >> 3) & 0x07;
+	BT_DBG("Request for pkt %u from card", bcsp->rxack);
+
+	bcsp_pkt_cull(bcsp);
+	if ((bcsp->rx_skb->data[1] & 0x0f) == 6 &&
+			bcsp->rx_skb->data[0] & 0x80) {
+		bcsp->rx_skb->pkt_type = HCI_ACLDATA_PKT;
+		pass_up = 1;
+	} else if ((bcsp->rx_skb->data[1] & 0x0f) == 5 &&
+			bcsp->rx_skb->data[0] & 0x80) {
+		bcsp->rx_skb->pkt_type = HCI_EVENT_PKT;
+		pass_up = 1;
+	} else if ((bcsp->rx_skb->data[1] & 0x0f) == 7) {
+		bcsp->rx_skb->pkt_type = HCI_SCODATA_PKT;
+		pass_up = 1;
+	} else if ((bcsp->rx_skb->data[1] & 0x0f) == 1 &&
+			!(bcsp->rx_skb->data[0] & 0x80)) {
+		bcsp_handle_le_pkt(hu);
+		pass_up = 0;
+	} else
+		pass_up = 0;
+
+	if (!pass_up) {
+		struct hci_event_hdr hdr;
+		u8 desc = (bcsp->rx_skb->data[1] & 0x0f);
+
+		if (desc != 0 && desc != 1) {
+			if (hciextn) {
+				desc |= 0xc0;
+				skb_pull(bcsp->rx_skb, 4);
+				memcpy(skb_push(bcsp->rx_skb, 1), &desc, 1);
+
+				hdr.evt = 0xff;
+				hdr.plen = bcsp->rx_skb->len;
+				memcpy(skb_push(bcsp->rx_skb, HCI_EVENT_HDR_SIZE), &hdr, HCI_EVENT_HDR_SIZE);
+				bcsp->rx_skb->pkt_type = HCI_EVENT_PKT;
+
+				hci_recv_frame(bcsp->rx_skb);
+			} else {
+				BT_ERR ("Packet for unknown channel (%u %s)",
+					bcsp->rx_skb->data[1] & 0x0f,
+					bcsp->rx_skb->data[0] & 0x80 ? 
+					"reliable" : "unreliable");
+				kfree_skb(bcsp->rx_skb);
+			}
+		} else
+			kfree_skb(bcsp->rx_skb);
+	} else {
+		/* Pull out BCSP hdr */
+		skb_pull(bcsp->rx_skb, 4);
+
+		hci_recv_frame(bcsp->rx_skb);
+	}
+	bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+	bcsp->rx_skb = NULL;
+}
+
+/* Recv data */
+static int bcsp_recv(struct hci_uart *hu, void *data, int count)
+{
+	struct bcsp_struct *bcsp = hu->priv;
+	register unsigned char *ptr;
+
+	BT_DBG("hu %p count %d rx_state %d rx_count %ld", 
+		hu, count, bcsp->rx_state, bcsp->rx_count);
+
+	ptr = data;
+	while (count) {
+		if (bcsp->rx_count) {
+			if (*ptr == 0xc0) {
+				BT_ERR("Short BCSP packet");
+				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_state = BCSP_W4_PKT_START;
+				bcsp->rx_count = 0;
+			} else
+				bcsp_unslip_one_byte(bcsp, *ptr);
+
+			ptr++; count--;
+			continue;
+		}
+
+		switch (bcsp->rx_state) {
+		case BCSP_W4_BCSP_HDR:
+			if ((0xff & (u8) ~ (bcsp->rx_skb->data[0] + bcsp->rx_skb->data[1] +
+					bcsp->rx_skb->data[2])) != bcsp->rx_skb->data[3]) {
+				BT_ERR("Error in BCSP hdr checksum");
+				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+				bcsp->rx_count = 0;
+				continue;
+			}
+			if (bcsp->rx_skb->data[0] & 0x80	/* reliable pkt */
+			    		&& (bcsp->rx_skb->data[0] & 0x07) != bcsp->rxseq_txack) {
+				BT_ERR ("Out-of-order packet arrived, got %u expected %u",
+					bcsp->rx_skb->data[0] & 0x07, bcsp->rxseq_txack);
+
+				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+				bcsp->rx_count = 0;
+				continue;
+			}
+			bcsp->rx_state = BCSP_W4_DATA;
+			bcsp->rx_count = (bcsp->rx_skb->data[1] >> 4) + 
+					(bcsp->rx_skb->data[2] << 4);	/* May be 0 */
+			continue;
+
+		case BCSP_W4_DATA:
+			if (bcsp->rx_skb->data[0] & 0x40) {	/* pkt with crc */
+				bcsp->rx_state = BCSP_W4_CRC;
+				bcsp->rx_count = 2;
+			} else
+				bcsp_complete_rx_pkt(hu);
+			continue;
+
+		case BCSP_W4_CRC:
+			if (bcsp_crc_reverse(bcsp->message_crc) !=
+					(bcsp->rx_skb->data[bcsp->rx_skb->len - 2] << 8) +
+					bcsp->rx_skb->data[bcsp->rx_skb->len - 1]) {
+
+				BT_ERR ("Checksum failed: computed %04x received %04x",
+					bcsp_crc_reverse(bcsp->message_crc),
+				     	(bcsp->rx_skb-> data[bcsp->rx_skb->len - 2] << 8) +
+				     	bcsp->rx_skb->data[bcsp->rx_skb->len - 1]);
+
+				kfree_skb(bcsp->rx_skb);
+				bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+				bcsp->rx_count = 0;
+				continue;
+			}
+			skb_trim(bcsp->rx_skb, bcsp->rx_skb->len - 2);
+			bcsp_complete_rx_pkt(hu);
+			continue;
+
+		case BCSP_W4_PKT_DELIMITER:
+			switch (*ptr) {
+			case 0xc0:
+				bcsp->rx_state = BCSP_W4_PKT_START;
+				break;
+			default:
+				/*BT_ERR("Ignoring byte %02x", *ptr);*/
+				break;
+			}
+			ptr++; count--;
+			break;
+
+		case BCSP_W4_PKT_START:
+			switch (*ptr) {
+			case 0xc0:
+				ptr++; count--;
+				break;
+
+			default:
+				bcsp->rx_state = BCSP_W4_BCSP_HDR;
+				bcsp->rx_count = 4;
+				bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC;
+				BCSP_CRC_INIT(bcsp->message_crc);
+				
+				/* Do not increment ptr or decrement count
+				 * Allocate packet. Max len of a BCSP pkt= 
+				 * 0xFFF (payload) +4 (header) +2 (crc) */
+
+				bcsp->rx_skb = bt_skb_alloc(0x1005, GFP_ATOMIC);
+				if (!bcsp->rx_skb) {
+					BT_ERR("Can't allocate mem for new packet");
+					bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+					bcsp->rx_count = 0;
+					return 0;
+				}
+				bcsp->rx_skb->dev = (void *) hu->hdev;
+				break;
+			}
+			break;
+		}
+	}
+	return count;
+}
+
+	/* Arrange to retransmit all messages in the relq. */
+static void bcsp_timed_event(unsigned long arg)
+{
+	struct hci_uart *hu = (struct hci_uart *) arg;
+	struct bcsp_struct *bcsp = hu->priv;
+	struct sk_buff *skb;
+	unsigned long flags;
+
+	BT_DBG("hu %p retransmitting %u pkts", hu, bcsp->unack.qlen);
+
+	spin_lock_irqsave(&bcsp->unack.lock, flags);
+
+	while ((skb = __skb_dequeue_tail(&bcsp->unack)) != NULL) {
+		bcsp->msgq_txseq = (bcsp->msgq_txseq - 1) & 0x07;
+		skb_queue_head(&bcsp->rel, skb);
+	}
+
+	spin_unlock_irqrestore(&bcsp->unack.lock, flags);
+
+	hci_uart_tx_wakeup(hu);
+}
+
+static int bcsp_open(struct hci_uart *hu)
+{
+	struct bcsp_struct *bcsp;
+
+	BT_DBG("hu %p", hu);
+
+	bcsp = kmalloc(sizeof(*bcsp), GFP_ATOMIC);
+	if (!bcsp)
+		return -ENOMEM;
+	memset(bcsp, 0, sizeof(*bcsp));
+
+	hu->priv = bcsp;
+	skb_queue_head_init(&bcsp->unack);
+	skb_queue_head_init(&bcsp->rel);
+	skb_queue_head_init(&bcsp->unrel);
+
+	init_timer(&bcsp->tbcsp);
+	bcsp->tbcsp.function = bcsp_timed_event;
+	bcsp->tbcsp.data     = (u_long) hu;
+
+	bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
+
+	return 0;
+}
+
+static int bcsp_close(struct hci_uart *hu)
+{
+	struct bcsp_struct *bcsp = hu->priv;
+	hu->priv = NULL;
+
+	BT_DBG("hu %p", hu);
+
+	skb_queue_purge(&bcsp->unack);
+	skb_queue_purge(&bcsp->rel);
+	skb_queue_purge(&bcsp->unrel);
+	del_timer(&bcsp->tbcsp);
+
+	kfree(bcsp);
+	return 0;
+}
+
+static struct hci_uart_proto bcsp = {
+	.id      = HCI_UART_BCSP,
+	.open    = bcsp_open,
+	.close   = bcsp_close,
+	.enqueue = bcsp_enqueue,
+	.dequeue = bcsp_dequeue,
+	.recv    = bcsp_recv,
+	.flush   = bcsp_flush
+};
+
+int bcsp_init(void)
+{
+	int err = hci_uart_register_proto(&bcsp);
+	if (!err)
+		BT_INFO("HCI BCSP protocol initialized");
+	else
+		BT_ERR("HCI BCSP protocol registration failed");
+
+	return err;
+}
+
+int bcsp_deinit(void)
+{
+	return hci_uart_unregister_proto(&bcsp);
+}
+
+module_param(hciextn, bool, 0644);
+MODULE_PARM_DESC(hciextn, "Convert HCI Extensions into BCSP packets");
diff --git a/drivers/bluetooth/hci_bcsp.h b/drivers/bluetooth/hci_bcsp.h
new file mode 100644
index 0000000..a2b3bb9
--- /dev/null
+++ b/drivers/bluetooth/hci_bcsp.h
@@ -0,0 +1,70 @@
+/* 
+   BlueCore Serial Protocol (BCSP) for Linux Bluetooth stack (BlueZ).
+   Copyright 2002 by Fabrizio Gennari <fabrizio.gennari@philips.com>
+
+   Based on
+       hci_h4.c  by Maxim Krasnyansky <maxk@qualcomm.com>
+       ABCSP     by Carl Orsborn <cjo@csr.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* 
+ * $Id: hci_bcsp.h,v 1.2 2002/09/26 05:05:14 maxk Exp $
+ */
+
+#ifndef __HCI_BCSP_H__
+#define __HCI_BCSP_H__
+
+#define BCSP_TXWINSIZE  4
+
+#define BCSP_ACK_PKT    0x05
+#define BCSP_LE_PKT     0x06
+
+struct bcsp_struct {
+	struct sk_buff_head unack;	/* Unack'ed packets queue */
+	struct sk_buff_head rel;	/* Reliable packets queue */
+	struct sk_buff_head unrel;	/* Unreliable packets queue */
+
+	unsigned long rx_count;
+	struct  sk_buff *rx_skb;
+	u8      rxseq_txack;		/* rxseq == txack. */
+	u8      rxack;			/* Last packet sent by us that the peer ack'ed */
+	struct  timer_list tbcsp;
+	
+	enum {
+		BCSP_W4_PKT_DELIMITER,
+		BCSP_W4_PKT_START,
+		BCSP_W4_BCSP_HDR,
+		BCSP_W4_DATA,
+		BCSP_W4_CRC
+	} rx_state;
+
+	enum {
+		BCSP_ESCSTATE_NOESC,
+		BCSP_ESCSTATE_ESC
+	} rx_esc_state;
+
+	u16     message_crc;
+	u8      txack_req;		/* Do we need to send ack's to the peer? */
+
+	/* Reliable packet sequence number - used to assign seq to each rel pkt. */
+	u8      msgq_txseq;
+};
+
+#endif	/* __HCI_BCSP_H__ */
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
new file mode 100644
index 0000000..ade94a5
--- /dev/null
+++ b/drivers/bluetooth/hci_h4.c
@@ -0,0 +1,282 @@
+/* 
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * Bluetooth HCI UART(H4) protocol.
+ *
+ * $Id: hci_h4.c,v 1.3 2002/09/09 01:17:32 maxk Exp $    
+ */
+#define VERSION "1.2"
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/poll.h>
+
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/signal.h>
+#include <linux/ioctl.h>
+#include <linux/skbuff.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include "hci_uart.h"
+#include "hci_h4.h"
+
+#ifndef CONFIG_BT_HCIUART_DEBUG
+#undef  BT_DBG
+#define BT_DBG( A... )
+#undef  BT_DMP
+#define BT_DMP( A... )
+#endif
+
+/* Initialize protocol */
+static int h4_open(struct hci_uart *hu)
+{
+	struct h4_struct *h4;
+	
+	BT_DBG("hu %p", hu);
+	
+	h4 = kmalloc(sizeof(*h4), GFP_ATOMIC);
+	if (!h4)
+		return -ENOMEM;
+	memset(h4, 0, sizeof(*h4));
+
+	skb_queue_head_init(&h4->txq);
+
+	hu->priv = h4;
+	return 0;
+}
+
+/* Flush protocol data */
+static int h4_flush(struct hci_uart *hu)
+{
+	struct h4_struct *h4 = hu->priv;
+
+	BT_DBG("hu %p", hu);
+	skb_queue_purge(&h4->txq);
+	return 0;
+}
+
+/* Close protocol */
+static int h4_close(struct hci_uart *hu)
+{
+	struct h4_struct *h4 = hu->priv;
+	hu->priv = NULL;
+
+	BT_DBG("hu %p", hu);
+
+	skb_queue_purge(&h4->txq);
+	if (h4->rx_skb)
+		kfree_skb(h4->rx_skb);
+
+	hu->priv = NULL;
+	kfree(h4);
+	return 0;
+}
+
+/* Enqueue frame for transmittion (padding, crc, etc) */
+static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb)
+{
+	struct h4_struct *h4 = hu->priv;
+
+	BT_DBG("hu %p skb %p", hu, skb);
+
+	/* Prepend skb with frame type */
+	memcpy(skb_push(skb, 1), &skb->pkt_type, 1);
+	skb_queue_tail(&h4->txq, skb);
+	return 0;
+}
+
+static inline int h4_check_data_len(struct h4_struct *h4, int len)
+{
+	register int room = skb_tailroom(h4->rx_skb);
+
+	BT_DBG("len %d room %d", len, room);
+	if (!len) {
+		BT_DMP(h4->rx_skb->data, h4->rx_skb->len);
+		hci_recv_frame(h4->rx_skb);
+	} else if (len > room) {
+		BT_ERR("Data length is too large");
+		kfree_skb(h4->rx_skb);
+	} else {
+		h4->rx_state = H4_W4_DATA;
+		h4->rx_count = len;
+		return len;
+	}
+
+	h4->rx_state = H4_W4_PACKET_TYPE;
+	h4->rx_skb   = NULL;
+	h4->rx_count = 0;
+	return 0;
+}
+
+/* Recv data */
+static int h4_recv(struct hci_uart *hu, void *data, int count)
+{
+	struct h4_struct *h4 = hu->priv;
+	register char *ptr;
+	struct hci_event_hdr *eh;
+	struct hci_acl_hdr   *ah;
+	struct hci_sco_hdr   *sh;
+	register int len, type, dlen;
+
+	BT_DBG("hu %p count %d rx_state %ld rx_count %ld", 
+			hu, count, h4->rx_state, h4->rx_count);
+
+	ptr = data;
+	while (count) {
+		if (h4->rx_count) {
+			len = min_t(unsigned int, h4->rx_count, count);
+			memcpy(skb_put(h4->rx_skb, len), ptr, len);
+			h4->rx_count -= len; count -= len; ptr += len;
+
+			if (h4->rx_count)
+				continue;
+
+			switch (h4->rx_state) {
+			case H4_W4_DATA:
+				BT_DBG("Complete data");
+
+				BT_DMP(h4->rx_skb->data, h4->rx_skb->len);
+
+				hci_recv_frame(h4->rx_skb);
+
+				h4->rx_state = H4_W4_PACKET_TYPE;
+				h4->rx_skb = NULL;
+				continue;
+
+			case H4_W4_EVENT_HDR:
+				eh = (struct hci_event_hdr *) h4->rx_skb->data;
+
+				BT_DBG("Event header: evt 0x%2.2x plen %d", eh->evt, eh->plen);
+
+				h4_check_data_len(h4, eh->plen);
+				continue;
+
+			case H4_W4_ACL_HDR:
+				ah = (struct hci_acl_hdr *) h4->rx_skb->data;
+				dlen = __le16_to_cpu(ah->dlen);
+
+				BT_DBG("ACL header: dlen %d", dlen);
+
+				h4_check_data_len(h4, dlen);
+				continue;
+
+			case H4_W4_SCO_HDR:
+				sh = (struct hci_sco_hdr *) h4->rx_skb->data;
+
+				BT_DBG("SCO header: dlen %d", sh->dlen);
+
+				h4_check_data_len(h4, sh->dlen);
+				continue;
+			}
+		}
+
+		/* H4_W4_PACKET_TYPE */
+		switch (*ptr) {
+		case HCI_EVENT_PKT:
+			BT_DBG("Event packet");
+			h4->rx_state = H4_W4_EVENT_HDR;
+			h4->rx_count = HCI_EVENT_HDR_SIZE;
+			type = HCI_EVENT_PKT;
+			break;
+
+		case HCI_ACLDATA_PKT:
+			BT_DBG("ACL packet");
+			h4->rx_state = H4_W4_ACL_HDR;
+			h4->rx_count = HCI_ACL_HDR_SIZE;
+			type = HCI_ACLDATA_PKT;
+			break;
+
+		case HCI_SCODATA_PKT:
+			BT_DBG("SCO packet");
+			h4->rx_state = H4_W4_SCO_HDR;
+			h4->rx_count = HCI_SCO_HDR_SIZE;
+			type = HCI_SCODATA_PKT;
+			break;
+
+		default:
+			BT_ERR("Unknown HCI packet type %2.2x", (__u8)*ptr);
+			hu->hdev->stat.err_rx++;
+			ptr++; count--;
+			continue;
+		};
+		ptr++; count--;
+
+		/* Allocate packet */
+		h4->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
+		if (!h4->rx_skb) {
+			BT_ERR("Can't allocate mem for new packet");
+			h4->rx_state = H4_W4_PACKET_TYPE;
+			h4->rx_count = 0;
+			return 0;
+		}
+		h4->rx_skb->dev = (void *) hu->hdev;
+		h4->rx_skb->pkt_type = type;
+	}
+	return count;
+}
+
+static struct sk_buff *h4_dequeue(struct hci_uart *hu)
+{
+	struct h4_struct *h4 = hu->priv;
+	return skb_dequeue(&h4->txq);
+}
+
+static struct hci_uart_proto h4p = {
+	.id      = HCI_UART_H4,
+	.open    = h4_open,
+	.close   = h4_close,
+	.recv    = h4_recv,
+	.enqueue = h4_enqueue,
+	.dequeue = h4_dequeue,
+	.flush   = h4_flush,
+};
+	      
+int h4_init(void)
+{
+	int err = hci_uart_register_proto(&h4p);
+	if (!err)
+		BT_INFO("HCI H4 protocol initialized");
+	else
+		BT_ERR("HCI H4 protocol registration failed");
+	
+	return err;
+}
+
+int h4_deinit(void)
+{
+	return hci_uart_unregister_proto(&h4p);
+}
diff --git a/drivers/bluetooth/hci_h4.h b/drivers/bluetooth/hci_h4.h
new file mode 100644
index 0000000..b95ff54
--- /dev/null
+++ b/drivers/bluetooth/hci_h4.h
@@ -0,0 +1,44 @@
+/* 
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * $Id: hci_h4.h,v 1.2 2002/09/09 01:17:32 maxk Exp $
+ */
+
+#ifdef __KERNEL__
+struct h4_struct {
+	unsigned long rx_state;
+	unsigned long rx_count;
+	struct sk_buff *rx_skb;
+	struct sk_buff_head txq;
+};
+
+/* H4 receiver States */
+#define H4_W4_PACKET_TYPE 0
+#define H4_W4_EVENT_HDR	  1
+#define H4_W4_ACL_HDR     2
+#define H4_W4_SCO_HDR     3
+#define H4_W4_DATA        4
+
+#endif /* __KERNEL__ */
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
new file mode 100644
index 0000000..9075bbb
--- /dev/null
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -0,0 +1,593 @@
+/* 
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * Bluetooth HCI UART driver.
+ *
+ * $Id: hci_ldisc.c,v 1.5 2002/10/02 18:37:20 maxk Exp $    
+ */
+#define VERSION "2.1"
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/fcntl.h>
+#include <linux/interrupt.h>
+#include <linux/ptrace.h>
+#include <linux/poll.h>
+
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/signal.h>
+#include <linux/ioctl.h>
+#include <linux/skbuff.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "hci_uart.h"
+
+#ifndef CONFIG_BT_HCIUART_DEBUG
+#undef  BT_DBG
+#define BT_DBG( A... )
+#undef  BT_DMP
+#define BT_DMP( A... )
+#endif
+
+static int reset = 0;
+
+static struct hci_uart_proto *hup[HCI_UART_MAX_PROTO];
+
+int hci_uart_register_proto(struct hci_uart_proto *p)
+{
+	if (p->id >= HCI_UART_MAX_PROTO)
+		return -EINVAL;
+
+	if (hup[p->id])
+		return -EEXIST;
+
+	hup[p->id] = p;
+	return 0;
+}
+
+int hci_uart_unregister_proto(struct hci_uart_proto *p)
+{
+	if (p->id >= HCI_UART_MAX_PROTO)
+		return -EINVAL;
+
+	if (!hup[p->id])
+		return -EINVAL;
+
+	hup[p->id] = NULL;
+	return 0;
+}
+
+static struct hci_uart_proto *hci_uart_get_proto(unsigned int id)
+{
+	if (id >= HCI_UART_MAX_PROTO)
+		return NULL;
+	return hup[id];
+}
+
+static inline void hci_uart_tx_complete(struct hci_uart *hu, int pkt_type)
+{
+	struct hci_dev *hdev = hu->hdev;
+	
+	/* Update HCI stat counters */
+	switch (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.cmd_tx++;
+		break;
+	}
+}
+
+static inline struct sk_buff *hci_uart_dequeue(struct hci_uart *hu)
+{
+	struct sk_buff *skb = hu->tx_skb;
+	if (!skb)
+		skb = hu->proto->dequeue(hu);
+	else
+		hu->tx_skb = NULL;
+	return skb;
+}
+
+int hci_uart_tx_wakeup(struct hci_uart *hu)
+{
+	struct tty_struct *tty = hu->tty;
+	struct hci_dev *hdev = hu->hdev;
+	struct sk_buff *skb;
+	
+	if (test_and_set_bit(HCI_UART_SENDING, &hu->tx_state)) {
+		set_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
+		return 0;
+	}
+
+	BT_DBG("");
+
+restart:
+	clear_bit(HCI_UART_TX_WAKEUP, &hu->tx_state);
+
+	while ((skb = hci_uart_dequeue(hu))) {
+		int len;
+	
+		set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+		len = tty->driver->write(tty, skb->data, skb->len);
+		hdev->stat.byte_tx += len;
+
+		skb_pull(skb, len);
+		if (skb->len) {
+			hu->tx_skb = skb;
+			break;
+		}
+	
+		hci_uart_tx_complete(hu, skb->pkt_type);
+		kfree_skb(skb);
+	} 
+	
+	if (test_bit(HCI_UART_TX_WAKEUP, &hu->tx_state))
+		goto restart;
+
+	clear_bit(HCI_UART_SENDING, &hu->tx_state);
+	return 0;
+}
+
+/* ------- Interface to HCI layer ------ */
+/* Initialize device */
+static int hci_uart_open(struct hci_dev *hdev)
+{
+	BT_DBG("%s %p", hdev->name, hdev);
+
+	/* Nothing to do for UART driver */
+
+	set_bit(HCI_RUNNING, &hdev->flags);
+	return 0;
+}
+
+/* Reset device */
+static int hci_uart_flush(struct hci_dev *hdev)
+{
+	struct hci_uart *hu  = (struct hci_uart *) hdev->driver_data;
+	struct tty_struct *tty = hu->tty;
+
+	BT_DBG("hdev %p tty %p", hdev, tty);
+
+	if (hu->tx_skb) {
+		kfree_skb(hu->tx_skb); hu->tx_skb = NULL;
+	}
+
+	/* Flush any pending characters in the driver and discipline. */
+	tty_ldisc_flush(tty);
+	if (tty->driver->flush_buffer)
+		tty->driver->flush_buffer(tty);
+
+	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+		hu->proto->flush(hu);
+
+	return 0;
+}
+
+/* Close device */
+static int hci_uart_close(struct hci_dev *hdev)
+{
+	BT_DBG("hdev %p", hdev);
+
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	hci_uart_flush(hdev);
+	return 0;
+}
+
+/* Send frames from HCI layer */
+static int hci_uart_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev* hdev = (struct hci_dev *) skb->dev;
+	struct tty_struct *tty;
+	struct hci_uart *hu;
+
+	if (!hdev) {
+		BT_ERR("Frame for uknown device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return -EBUSY;
+
+	hu = (struct hci_uart *) hdev->driver_data;
+	tty = hu->tty;
+
+	BT_DBG("%s: type %d len %d", hdev->name, skb->pkt_type, skb->len);
+
+	hu->proto->enqueue(hu, skb);
+
+	hci_uart_tx_wakeup(hu);
+	return 0;
+}
+
+static void hci_uart_destruct(struct hci_dev *hdev)
+{
+	struct hci_uart *hu;
+
+	if (!hdev) return;
+
+	BT_DBG("%s", hdev->name);
+
+	hu = (struct hci_uart *) hdev->driver_data;
+	kfree(hu);
+}
+
+/* ------ LDISC part ------ */
+/* hci_uart_tty_open
+ * 
+ *     Called when line discipline changed to HCI_UART.
+ *
+ * Arguments:
+ *     tty    pointer to tty info structure
+ * Return Value:    
+ *     0 if success, otherwise error code
+ */
+static int hci_uart_tty_open(struct tty_struct *tty)
+{
+	struct hci_uart *hu = (void *) tty->disc_data;
+
+	BT_DBG("tty %p", tty);
+
+	if (hu)
+		return -EEXIST;
+
+	if (!(hu = kmalloc(sizeof(struct hci_uart), GFP_KERNEL))) {
+		BT_ERR("Can't allocate controll structure");
+		return -ENFILE;
+	}
+	memset(hu, 0, sizeof(struct hci_uart));
+
+	tty->disc_data = hu;
+	hu->tty = tty;
+
+	spin_lock_init(&hu->rx_lock);
+
+	/* Flush any pending characters in the driver and line discipline. */
+	/* FIXME: why is this needed. Note don't use ldisc_ref here as the
+	   open path is before the ldisc is referencable */
+	if (tty->ldisc.flush_buffer)
+		tty->ldisc.flush_buffer(tty);
+
+	if (tty->driver->flush_buffer)
+		tty->driver->flush_buffer(tty);
+
+	return 0;
+}
+
+/* hci_uart_tty_close()
+ *
+ *    Called when the line discipline is changed to something
+ *    else, the tty is closed, or the tty detects a hangup.
+ */
+static void hci_uart_tty_close(struct tty_struct *tty)
+{
+	struct hci_uart *hu = (void *)tty->disc_data;
+
+	BT_DBG("tty %p", tty);
+
+	/* Detach from the tty */
+	tty->disc_data = NULL;
+
+	if (hu) {
+		struct hci_dev *hdev = hu->hdev;
+		hci_uart_close(hdev);
+
+		if (test_and_clear_bit(HCI_UART_PROTO_SET, &hu->flags)) {
+			hu->proto->close(hu);
+			hci_unregister_dev(hdev);
+			hci_free_dev(hdev);
+		}
+	}
+}
+
+/* hci_uart_tty_wakeup()
+ *
+ *    Callback for transmit wakeup. Called when low level
+ *    device driver can accept more send data.
+ *
+ * Arguments:        tty    pointer to associated tty instance data
+ * Return Value:    None
+ */
+static void hci_uart_tty_wakeup(struct tty_struct *tty)
+{
+	struct hci_uart *hu = (void *)tty->disc_data;
+
+	BT_DBG("");
+
+	if (!hu)
+		return;
+
+	clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
+
+	if (tty != hu->tty)
+		return;
+
+	if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+		hci_uart_tx_wakeup(hu);
+}
+
+/* hci_uart_tty_room()
+ * 
+ *    Callback function from tty driver. Return the amount of 
+ *    space left in the receiver's buffer to decide if remote
+ *    transmitter is to be throttled.
+ *
+ * Arguments:        tty    pointer to associated tty instance data
+ * Return Value:    number of bytes left in receive buffer
+ */
+static int hci_uart_tty_room (struct tty_struct *tty)
+{
+	return 65536;
+}
+
+/* hci_uart_tty_receive()
+ * 
+ *     Called by tty low level driver when receive data is
+ *     available.
+ *     
+ * Arguments:  tty          pointer to tty isntance data
+ *             data         pointer to received data
+ *             flags        pointer to flags for data
+ *             count        count of received data in bytes
+ *     
+ * Return Value:    None
+ */
+static void hci_uart_tty_receive(struct tty_struct *tty, const __u8 *data, char *flags, int count)
+{
+	struct hci_uart *hu = (void *)tty->disc_data;
+	
+	if (!hu || tty != hu->tty)
+		return;
+
+	if (!test_bit(HCI_UART_PROTO_SET, &hu->flags))
+		return;
+	
+	spin_lock(&hu->rx_lock);
+	hu->proto->recv(hu, (void *) data, count);
+	hu->hdev->stat.byte_rx += count;
+	spin_unlock(&hu->rx_lock);
+
+	if (test_and_clear_bit(TTY_THROTTLED,&tty->flags) && tty->driver->unthrottle)
+		tty->driver->unthrottle(tty);
+}
+
+static int hci_uart_register_dev(struct hci_uart *hu)
+{
+	struct hci_dev *hdev;
+
+	BT_DBG("");
+
+	/* Initialize and register HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		return -ENOMEM;
+	}
+
+	hu->hdev = hdev;
+
+	hdev->type = HCI_UART;
+	hdev->driver_data = hu;
+
+	hdev->open  = hci_uart_open;
+	hdev->close = hci_uart_close;
+	hdev->flush = hci_uart_flush;
+	hdev->send  = hci_uart_send_frame;
+	hdev->destruct = hci_uart_destruct;
+
+	hdev->owner = THIS_MODULE;
+
+	if (reset)
+		set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
+
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		hci_free_dev(hdev);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int hci_uart_set_proto(struct hci_uart *hu, int id)
+{
+	struct hci_uart_proto *p;
+	int err;	
+	
+	p = hci_uart_get_proto(id);
+	if (!p)
+		return -EPROTONOSUPPORT;
+
+	err = p->open(hu);
+	if (err)
+		return err;
+
+	hu->proto = p;
+
+	err = hci_uart_register_dev(hu);
+	if (err) {
+		p->close(hu);
+		return err;
+	}
+	return 0;
+}
+
+/* hci_uart_tty_ioctl()
+ *
+ *    Process IOCTL system call for the tty device.
+ *
+ * Arguments:
+ *
+ *    tty        pointer to tty instance data
+ *    file       pointer to open file object for device
+ *    cmd        IOCTL command code
+ *    arg        argument for IOCTL call (cmd dependent)
+ *
+ * Return Value:    Command dependent
+ */
+static int hci_uart_tty_ioctl(struct tty_struct *tty, struct file * file,
+                            unsigned int cmd, unsigned long arg)
+{
+	struct hci_uart *hu = (void *)tty->disc_data;
+	int err = 0;
+
+	BT_DBG("");
+
+	/* Verify the status of the device */
+	if (!hu)
+		return -EBADF;
+
+	switch (cmd) {
+	case HCIUARTSETPROTO:
+		if (!test_and_set_bit(HCI_UART_PROTO_SET, &hu->flags)) {
+			err = hci_uart_set_proto(hu, arg);
+			if (err) {
+				clear_bit(HCI_UART_PROTO_SET, &hu->flags);
+				return err;
+			}
+			tty->low_latency = 1;
+		} else	
+			return -EBUSY;
+
+	case HCIUARTGETPROTO:
+		if (test_bit(HCI_UART_PROTO_SET, &hu->flags))
+			return hu->proto->id;
+		return -EUNATCH;
+		
+	default:
+		err = n_tty_ioctl(tty, file, cmd, arg);
+		break;
+	};
+
+	return err;
+}
+
+/*
+ * We don't provide read/write/poll interface for user space.
+ */
+static ssize_t hci_uart_tty_read(struct tty_struct *tty, struct file *file, unsigned char __user *buf, size_t nr)
+{
+	return 0;
+}
+static ssize_t hci_uart_tty_write(struct tty_struct *tty, struct file *file, const unsigned char *data, size_t count)
+{
+	return 0;
+}
+static unsigned int hci_uart_tty_poll(struct tty_struct *tty, struct file *filp, poll_table *wait)
+{
+	return 0;
+}
+
+#ifdef CONFIG_BT_HCIUART_H4
+int h4_init(void);
+int h4_deinit(void);
+#endif
+#ifdef CONFIG_BT_HCIUART_BCSP
+int bcsp_init(void);
+int bcsp_deinit(void);
+#endif
+
+static int __init hci_uart_init(void)
+{
+	static struct tty_ldisc hci_uart_ldisc;
+	int err;
+
+	BT_INFO("HCI UART driver ver %s", VERSION);
+
+	/* Register the tty discipline */
+
+	memset(&hci_uart_ldisc, 0, sizeof (hci_uart_ldisc));
+	hci_uart_ldisc.magic       = TTY_LDISC_MAGIC;
+	hci_uart_ldisc.name        = "n_hci";
+	hci_uart_ldisc.open        = hci_uart_tty_open;
+	hci_uart_ldisc.close       = hci_uart_tty_close;
+	hci_uart_ldisc.read        = hci_uart_tty_read;
+	hci_uart_ldisc.write       = hci_uart_tty_write;
+	hci_uart_ldisc.ioctl       = hci_uart_tty_ioctl;
+	hci_uart_ldisc.poll        = hci_uart_tty_poll;
+	hci_uart_ldisc.receive_room= hci_uart_tty_room;
+	hci_uart_ldisc.receive_buf = hci_uart_tty_receive;
+	hci_uart_ldisc.write_wakeup= hci_uart_tty_wakeup;
+	hci_uart_ldisc.owner       = THIS_MODULE;
+
+	if ((err = tty_register_ldisc(N_HCI, &hci_uart_ldisc))) {
+		BT_ERR("HCI line discipline registration failed. (%d)", err);
+		return err;
+	}
+
+#ifdef CONFIG_BT_HCIUART_H4
+	h4_init();
+#endif
+#ifdef CONFIG_BT_HCIUART_BCSP
+	bcsp_init();
+#endif
+	
+	return 0;
+}
+
+static void __exit hci_uart_exit(void)
+{
+	int err;
+
+#ifdef CONFIG_BT_HCIUART_H4
+	h4_deinit();
+#endif
+#ifdef CONFIG_BT_HCIUART_BCSP
+	bcsp_deinit();
+#endif
+
+	/* Release tty registration of line discipline */
+	if ((err = tty_register_ldisc(N_HCI, NULL)))
+		BT_ERR("Can't unregister HCI line discipline (%d)", err);
+}
+
+module_init(hci_uart_init);
+module_exit(hci_uart_exit);
+
+module_param(reset, bool, 0644);
+MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
+
+MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth HCI UART driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_LDISC(N_HCI);
diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h
new file mode 100644
index 0000000..0a57d727
--- /dev/null
+++ b/drivers/bluetooth/hci_uart.h
@@ -0,0 +1,82 @@
+/* 
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * $Id: hci_uart.h,v 1.2 2002/09/09 01:17:32 maxk Exp $
+ */
+
+#ifndef N_HCI 
+#define N_HCI	15
+#endif
+
+/* Ioctls */
+#define HCIUARTSETPROTO	_IOW('U', 200, int)
+#define HCIUARTGETPROTO	_IOR('U', 201, int)
+
+/* UART protocols */
+#define HCI_UART_MAX_PROTO	4
+
+#define HCI_UART_H4	0
+#define HCI_UART_BCSP	1
+#define HCI_UART_3WIRE	2
+#define HCI_UART_H4DS	3
+
+#ifdef __KERNEL__
+struct hci_uart;
+
+struct hci_uart_proto {
+	unsigned int id;
+	int (*open)(struct hci_uart *hu);
+	int (*close)(struct hci_uart *hu);
+	int (*flush)(struct hci_uart *hu);
+	int (*recv)(struct hci_uart *hu, void *data, int len);
+	int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb);
+	struct sk_buff *(*dequeue)(struct hci_uart *hu);
+};
+
+struct hci_uart {
+	struct tty_struct  *tty;
+	struct hci_dev     *hdev;
+	unsigned long      flags;
+
+	struct hci_uart_proto *proto;
+	void               *priv;
+	
+	struct sk_buff     *tx_skb;
+	unsigned long      tx_state;
+	spinlock_t         rx_lock;
+};
+
+/* HCI_UART flag bits */
+#define HCI_UART_PROTO_SET		0
+
+/* TX states  */
+#define HCI_UART_SENDING		1
+#define HCI_UART_TX_WAKEUP		2
+
+int hci_uart_register_proto(struct hci_uart_proto *p);
+int hci_uart_unregister_proto(struct hci_uart_proto *p);
+int hci_uart_tx_wakeup(struct hci_uart *hu);
+
+#endif /* __KERNEL__ */
diff --git a/drivers/bluetooth/hci_usb.c b/drivers/bluetooth/hci_usb.c
new file mode 100644
index 0000000..b120ecf
--- /dev/null
+++ b/drivers/bluetooth/hci_usb.c
@@ -0,0 +1,1075 @@
+/* 
+   HCI USB driver for Linux Bluetooth protocol stack (BlueZ)
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * Bluetooth HCI USB driver.
+ * Based on original USB Bluetooth driver for Linux kernel
+ *    Copyright (c) 2000 Greg Kroah-Hartman        <greg@kroah.com>
+ *    Copyright (c) 2000 Mark Douglas Corner       <mcorner@umich.edu>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/unistd.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/moduleparam.h>
+
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/skbuff.h>
+
+#include <linux/usb.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "hci_usb.h"
+
+#ifndef CONFIG_BT_HCIUSB_DEBUG
+#undef  BT_DBG
+#define BT_DBG(D...)
+#undef  BT_DMP
+#define BT_DMP(D...)
+#endif
+
+#ifndef CONFIG_BT_HCIUSB_ZERO_PACKET
+#undef  URB_ZERO_PACKET
+#define URB_ZERO_PACKET 0
+#endif
+
+static int ignore = 0;
+static int reset = 0;
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+static int isoc = 2;
+#endif
+
+#define VERSION "2.8"
+
+static struct usb_driver hci_usb_driver; 
+
+static struct usb_device_id bluetooth_ids[] = {
+	/* Generic Bluetooth USB device */
+	{ USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) },
+
+	/* AVM BlueFRITZ! USB v2.0 */
+	{ USB_DEVICE(0x057c, 0x3800) },
+
+	/* Bluetooth Ultraport Module from IBM */
+	{ USB_DEVICE(0x04bf, 0x030a) },
+
+	/* ALPS Modules with non-standard id */
+	{ USB_DEVICE(0x044e, 0x3001) },
+	{ USB_DEVICE(0x044e, 0x3002) },
+
+	/* Ericsson with non-standard id */
+	{ USB_DEVICE(0x0bdb, 0x1002) },
+
+	{ }	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, bluetooth_ids);
+
+static struct usb_device_id blacklist_ids[] = {
+	/* Broadcom BCM2033 without firmware */
+	{ USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE },
+
+	/* Broadcom BCM2035 */
+	{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_BROKEN_ISOC },
+	{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 },
+
+	/* Microsoft Wireless Transceiver for Bluetooth 2.0 */
+	{ USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET },
+
+	/* ISSC Bluetooth Adapter v3.1 */
+	{ USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET },
+
+	/* RTX Telecom based adapter with buggy SCO support */
+	{ USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC },
+
+	/* Digianswer devices */
+	{ USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER },
+	{ USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE },
+
+	/* CSR BlueCore Bluetooth Sniffer */
+	{ USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER },
+
+	{ }	/* Terminating entry */
+};
+
+static struct _urb *_urb_alloc(int isoc, int gfp)
+{
+	struct _urb *_urb = kmalloc(sizeof(struct _urb) +
+				sizeof(struct usb_iso_packet_descriptor) * isoc, gfp);
+	if (_urb) {
+		memset(_urb, 0, sizeof(*_urb));
+		usb_init_urb(&_urb->urb);
+	}
+	return _urb;
+}
+
+static struct _urb *_urb_dequeue(struct _urb_queue *q)
+{
+	struct _urb *_urb = NULL;
+	unsigned long flags;
+	spin_lock_irqsave(&q->lock, flags);
+	{
+		struct list_head *head = &q->head;
+		struct list_head *next = head->next;
+		if (next != head) {
+			_urb = list_entry(next, struct _urb, list);
+			list_del(next); _urb->queue = NULL;
+		}
+	}
+	spin_unlock_irqrestore(&q->lock, flags);
+	return _urb;
+}
+
+static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs);
+static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs);
+
+#define __pending_tx(husb, type)  (&husb->pending_tx[type-1])
+#define __pending_q(husb, type)   (&husb->pending_q[type-1])
+#define __completed_q(husb, type) (&husb->completed_q[type-1])
+#define __transmit_q(husb, type)  (&husb->transmit_q[type-1])
+#define __reassembly(husb, type)  (husb->reassembly[type-1])
+
+static inline struct _urb *__get_completed(struct hci_usb *husb, int type)
+{
+	return _urb_dequeue(__completed_q(husb, type)); 
+}
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+static void __fill_isoc_desc(struct urb *urb, int len, int mtu)
+{
+	int offset = 0, i;
+
+	BT_DBG("len %d mtu %d", len, mtu);
+
+	for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) {
+		urb->iso_frame_desc[i].offset = offset;
+		urb->iso_frame_desc[i].length = mtu;
+		BT_DBG("desc %d offset %d len %d", i, offset, mtu);
+	}
+	if (len && i < HCI_MAX_ISOC_FRAMES) {
+		urb->iso_frame_desc[i].offset = offset;
+		urb->iso_frame_desc[i].length = len;
+		BT_DBG("desc %d offset %d len %d", i, offset, len);
+		i++;
+	}
+	urb->number_of_packets = i;
+}
+#endif
+
+static int hci_usb_intr_rx_submit(struct hci_usb *husb)
+{
+	struct _urb *_urb;
+	struct urb *urb;
+	int err, pipe, interval, size;
+	void *buf;
+
+	BT_DBG("%s", husb->hdev->name);
+
+	size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize);
+
+	buf = kmalloc(size, GFP_ATOMIC);
+	if (!buf)
+		return -ENOMEM;
+
+	_urb = _urb_alloc(0, GFP_ATOMIC);
+	if (!_urb) {
+		kfree(buf);
+		return -ENOMEM;
+	}
+	_urb->type = HCI_EVENT_PKT;
+	_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
+
+	urb = &_urb->urb;
+	pipe     = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress);
+	interval = husb->intr_in_ep->desc.bInterval;
+	usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval);
+	
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s intr rx submit failed urb %p err %d",
+				husb->hdev->name, urb, err);
+		_urb_unlink(_urb);
+		_urb_free(_urb);
+		kfree(buf);
+	}
+	return err;
+}
+
+static int hci_usb_bulk_rx_submit(struct hci_usb *husb)
+{
+	struct _urb *_urb;
+	struct urb *urb;
+	int err, pipe, size = HCI_MAX_FRAME_SIZE;
+	void *buf;
+
+	buf = kmalloc(size, GFP_ATOMIC);
+	if (!buf)
+		return -ENOMEM;
+
+	_urb = _urb_alloc(0, GFP_ATOMIC);
+	if (!_urb) {
+		kfree(buf);
+		return -ENOMEM;
+	}
+	_urb->type = HCI_ACLDATA_PKT;
+	_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
+
+	urb  = &_urb->urb;
+	pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress);
+	usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb);
+	urb->transfer_flags = 0;
+
+	BT_DBG("%s urb %p", husb->hdev->name, urb);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s bulk rx submit failed urb %p err %d",
+				husb->hdev->name, urb, err);
+		_urb_unlink(_urb);
+		_urb_free(_urb);
+		kfree(buf);
+	}
+	return err;
+}
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+static int hci_usb_isoc_rx_submit(struct hci_usb *husb)
+{
+	struct _urb *_urb;
+	struct urb *urb;
+	int err, mtu, size;
+	void *buf;
+
+	mtu  = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize);
+	size = mtu * HCI_MAX_ISOC_FRAMES;
+
+	buf = kmalloc(size, GFP_ATOMIC);
+	if (!buf)
+		return -ENOMEM;
+
+	_urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC);
+	if (!_urb) {
+		kfree(buf);
+		return -ENOMEM;
+	}
+	_urb->type = HCI_SCODATA_PKT;
+	_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
+
+	urb = &_urb->urb;
+
+	urb->context  = husb;
+	urb->dev      = husb->udev;
+	urb->pipe     = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress);
+	urb->complete = hci_usb_rx_complete;
+
+	urb->interval = husb->isoc_in_ep->desc.bInterval;
+
+	urb->transfer_buffer_length = size;
+	urb->transfer_buffer = buf;
+	urb->transfer_flags  = URB_ISO_ASAP;
+
+	__fill_isoc_desc(urb, size, mtu);
+
+	BT_DBG("%s urb %p", husb->hdev->name, urb);
+
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s isoc rx submit failed urb %p err %d",
+				husb->hdev->name, urb, err);
+		_urb_unlink(_urb);
+		_urb_free(_urb);
+		kfree(buf);
+	}
+	return err;
+}
+#endif
+
+/* Initialize device */
+static int hci_usb_open(struct hci_dev *hdev)
+{
+	struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
+	int i, err;
+	unsigned long flags;
+
+	BT_DBG("%s", hdev->name);
+
+	if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	write_lock_irqsave(&husb->completion_lock, flags);
+
+	err = hci_usb_intr_rx_submit(husb);
+	if (!err) {
+		for (i = 0; i < HCI_MAX_BULK_RX; i++)
+			hci_usb_bulk_rx_submit(husb);
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+		if (husb->isoc_iface)
+			for (i = 0; i < HCI_MAX_ISOC_RX; i++)
+				hci_usb_isoc_rx_submit(husb);
+#endif
+	} else {
+		clear_bit(HCI_RUNNING, &hdev->flags);
+	}
+
+	write_unlock_irqrestore(&husb->completion_lock, flags);
+	return err;
+}
+
+/* Reset device */
+static int hci_usb_flush(struct hci_dev *hdev)
+{
+	struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
+	int i;
+
+	BT_DBG("%s", hdev->name);
+
+	for (i = 0; i < 4; i++)
+		skb_queue_purge(&husb->transmit_q[i]);
+	return 0;
+}
+
+static void hci_usb_unlink_urbs(struct hci_usb *husb)
+{
+	int i;
+
+	BT_DBG("%s", husb->hdev->name);
+
+	for (i = 0; i < 4; i++) {
+		struct _urb *_urb;
+		struct urb *urb;
+
+		/* Kill pending requests */
+		while ((_urb = _urb_dequeue(&husb->pending_q[i]))) {
+			urb = &_urb->urb;
+			BT_DBG("%s unlinking _urb %p type %d urb %p", 
+					husb->hdev->name, _urb, _urb->type, urb);
+			usb_kill_urb(urb);
+			_urb_queue_tail(__completed_q(husb, _urb->type), _urb);
+		}
+
+		/* Release completed requests */
+		while ((_urb = _urb_dequeue(&husb->completed_q[i]))) {
+			urb = &_urb->urb;
+			BT_DBG("%s freeing _urb %p type %d urb %p",
+					husb->hdev->name, _urb, _urb->type, urb);
+			if (urb->setup_packet)
+				kfree(urb->setup_packet);
+			if (urb->transfer_buffer)
+				kfree(urb->transfer_buffer);
+			_urb_free(_urb);
+		}
+
+		/* Release reassembly buffers */
+		if (husb->reassembly[i]) {
+			kfree_skb(husb->reassembly[i]);
+			husb->reassembly[i] = NULL;
+		}
+	}
+}
+
+/* Close device */
+static int hci_usb_close(struct hci_dev *hdev)
+{
+	struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
+	unsigned long flags;
+
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	BT_DBG("%s", hdev->name);
+
+	/* Synchronize with completion handlers */
+	write_lock_irqsave(&husb->completion_lock, flags);
+	write_unlock_irqrestore(&husb->completion_lock, flags);
+
+	hci_usb_unlink_urbs(husb);
+	hci_usb_flush(hdev);
+	return 0;
+}
+
+static int __tx_submit(struct hci_usb *husb, struct _urb *_urb)
+{
+	struct urb *urb = &_urb->urb;
+	int err;
+
+	BT_DBG("%s urb %p type %d", husb->hdev->name, urb, _urb->type);
+
+	_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	if (err) {
+		BT_ERR("%s tx submit failed urb %p type %d err %d",
+				husb->hdev->name, urb, _urb->type, err);
+		_urb_unlink(_urb);
+		_urb_queue_tail(__completed_q(husb, _urb->type), _urb);
+	} else
+		atomic_inc(__pending_tx(husb, _urb->type));
+
+	return err;
+}
+
+static inline int hci_usb_send_ctrl(struct hci_usb *husb, struct sk_buff *skb)
+{
+	struct _urb *_urb = __get_completed(husb, skb->pkt_type);
+	struct usb_ctrlrequest *dr;
+	struct urb *urb;
+
+	if (!_urb) {
+		_urb = _urb_alloc(0, GFP_ATOMIC);
+		if (!_urb)
+			return -ENOMEM;
+		_urb->type = skb->pkt_type;
+
+		dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
+		if (!dr) {
+			_urb_free(_urb);
+			return -ENOMEM;
+		}
+	} else
+		dr = (void *) _urb->urb.setup_packet;
+
+	dr->bRequestType = husb->ctrl_req;
+	dr->bRequest = 0;
+	dr->wIndex   = 0;
+	dr->wValue   = 0;
+	dr->wLength  = __cpu_to_le16(skb->len);
+
+	urb = &_urb->urb;
+	usb_fill_control_urb(urb, husb->udev, usb_sndctrlpipe(husb->udev, 0),
+		(void *) dr, skb->data, skb->len, hci_usb_tx_complete, husb);
+
+	BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len);
+	
+	_urb->priv = skb;
+	return __tx_submit(husb, _urb);
+}
+
+static inline int hci_usb_send_bulk(struct hci_usb *husb, struct sk_buff *skb)
+{
+	struct _urb *_urb = __get_completed(husb, skb->pkt_type);
+	struct urb *urb;
+	int pipe;
+
+	if (!_urb) {
+		_urb = _urb_alloc(0, GFP_ATOMIC);
+		if (!_urb)
+			return -ENOMEM;
+		_urb->type = skb->pkt_type;
+	}
+
+	urb  = &_urb->urb;
+	pipe = usb_sndbulkpipe(husb->udev, husb->bulk_out_ep->desc.bEndpointAddress);
+	usb_fill_bulk_urb(urb, husb->udev, pipe, skb->data, skb->len, 
+			hci_usb_tx_complete, husb);
+	urb->transfer_flags = URB_ZERO_PACKET;
+
+	BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len);
+
+	_urb->priv = skb;
+	return __tx_submit(husb, _urb);
+}
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+static inline int hci_usb_send_isoc(struct hci_usb *husb, struct sk_buff *skb)
+{
+	struct _urb *_urb = __get_completed(husb, skb->pkt_type);
+	struct urb *urb;
+
+	if (!_urb) {
+		_urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC);
+		if (!_urb)
+			return -ENOMEM;
+		_urb->type = skb->pkt_type;
+	}
+
+	BT_DBG("%s skb %p len %d", husb->hdev->name, skb, skb->len);
+
+	urb = &_urb->urb;
+
+	urb->context  = husb;
+	urb->dev      = husb->udev;
+	urb->pipe     = usb_sndisocpipe(husb->udev, husb->isoc_out_ep->desc.bEndpointAddress);
+	urb->complete = hci_usb_tx_complete;
+	urb->transfer_flags = URB_ISO_ASAP;
+
+	urb->interval = husb->isoc_out_ep->desc.bInterval;
+
+	urb->transfer_buffer = skb->data;
+	urb->transfer_buffer_length = skb->len;
+
+	__fill_isoc_desc(urb, skb->len, le16_to_cpu(husb->isoc_out_ep->desc.wMaxPacketSize));
+
+	_urb->priv = skb;
+	return __tx_submit(husb, _urb);
+}
+#endif
+
+static void hci_usb_tx_process(struct hci_usb *husb)
+{
+	struct sk_buff_head *q;
+	struct sk_buff *skb;
+
+	BT_DBG("%s", husb->hdev->name);
+
+	do {
+		clear_bit(HCI_USB_TX_WAKEUP, &husb->state);
+
+		/* Process command queue */
+		q = __transmit_q(husb, HCI_COMMAND_PKT);
+		if (!atomic_read(__pending_tx(husb, HCI_COMMAND_PKT)) &&
+				(skb = skb_dequeue(q))) {
+			if (hci_usb_send_ctrl(husb, skb) < 0)
+				skb_queue_head(q, skb);
+		}
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+		/* Process SCO queue */
+		q = __transmit_q(husb, HCI_SCODATA_PKT);
+		if (atomic_read(__pending_tx(husb, HCI_SCODATA_PKT)) < HCI_MAX_ISOC_TX &&
+				(skb = skb_dequeue(q))) {
+			if (hci_usb_send_isoc(husb, skb) < 0)
+				skb_queue_head(q, skb);
+		}
+#endif
+
+		/* Process ACL queue */
+		q = __transmit_q(husb, HCI_ACLDATA_PKT);
+		while (atomic_read(__pending_tx(husb, HCI_ACLDATA_PKT)) < HCI_MAX_BULK_TX &&
+				(skb = skb_dequeue(q))) {
+			if (hci_usb_send_bulk(husb, skb) < 0) {
+				skb_queue_head(q, skb);
+				break;
+			}
+		}
+	} while(test_bit(HCI_USB_TX_WAKEUP, &husb->state));
+}
+
+static inline void hci_usb_tx_wakeup(struct hci_usb *husb)
+{
+	/* Serialize TX queue processing to avoid data reordering */
+	if (!test_and_set_bit(HCI_USB_TX_PROCESS, &husb->state)) {
+		hci_usb_tx_process(husb);
+		clear_bit(HCI_USB_TX_PROCESS, &husb->state);
+	} else
+		set_bit(HCI_USB_TX_WAKEUP, &husb->state);
+}
+
+/* Send frames from HCI layer */
+static int hci_usb_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+	struct hci_usb *husb;
+
+	if (!hdev) {
+		BT_ERR("frame for uknown device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return -EBUSY;
+
+	BT_DBG("%s type %d len %d", hdev->name, skb->pkt_type, skb->len);
+
+	husb = (struct hci_usb *) 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;
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+	case HCI_SCODATA_PKT:
+		hdev->stat.sco_tx++;
+		break;
+#endif
+
+	default:
+		kfree_skb(skb);
+		return 0;
+	}
+
+	read_lock(&husb->completion_lock);
+
+	skb_queue_tail(__transmit_q(husb, skb->pkt_type), skb);
+	hci_usb_tx_wakeup(husb);
+
+	read_unlock(&husb->completion_lock);
+	return 0;
+}
+
+static inline int __recv_frame(struct hci_usb *husb, int type, void *data, int count)
+{
+	BT_DBG("%s type %d data %p count %d", husb->hdev->name, type, data, count);
+
+	husb->hdev->stat.byte_rx += count;
+
+	while (count) {
+		struct sk_buff *skb = __reassembly(husb, type);
+		struct { int expect; } *scb;
+		int len = 0;
+	
+		if (!skb) {
+			/* Start of the frame */
+
+			switch (type) {
+			case HCI_EVENT_PKT:
+				if (count >= HCI_EVENT_HDR_SIZE) {
+					struct hci_event_hdr *h = data;
+					len = HCI_EVENT_HDR_SIZE + h->plen;
+				} else
+					return -EILSEQ;
+				break;
+
+			case HCI_ACLDATA_PKT:
+				if (count >= HCI_ACL_HDR_SIZE) {
+					struct hci_acl_hdr *h = data;
+					len = HCI_ACL_HDR_SIZE + __le16_to_cpu(h->dlen);
+				} else
+					return -EILSEQ;
+				break;
+#ifdef CONFIG_BT_HCIUSB_SCO
+			case HCI_SCODATA_PKT:
+				if (count >= HCI_SCO_HDR_SIZE) {
+					struct hci_sco_hdr *h = data;
+					len = HCI_SCO_HDR_SIZE + h->dlen;
+				} else
+					return -EILSEQ;
+				break;
+#endif
+			}
+			BT_DBG("new packet len %d", len);
+
+			skb = bt_skb_alloc(len, GFP_ATOMIC);
+			if (!skb) {
+				BT_ERR("%s no memory for the packet", husb->hdev->name);
+				return -ENOMEM;
+			}
+			skb->dev = (void *) husb->hdev;
+			skb->pkt_type = type;
+	
+			__reassembly(husb, type) = skb;
+
+			scb = (void *) skb->cb;
+			scb->expect = len;
+		} else {
+			/* Continuation */
+			scb = (void *) skb->cb;
+			len = scb->expect;
+		}
+
+		len = min(len, count);
+		
+		memcpy(skb_put(skb, len), data, len);
+
+		scb->expect -= len;
+		if (!scb->expect) {
+			/* Complete frame */
+			__reassembly(husb, type) = NULL;
+			hci_recv_frame(skb);
+		}
+
+		count -= len; data += len;
+	}
+	return 0;
+}
+
+static void hci_usb_rx_complete(struct urb *urb, struct pt_regs *regs)
+{
+	struct _urb *_urb = container_of(urb, struct _urb, urb);
+	struct hci_usb *husb = (void *) urb->context;
+	struct hci_dev *hdev = husb->hdev;
+	int err, count = urb->actual_length;
+
+	BT_DBG("%s urb %p type %d status %d count %d flags %x", hdev->name, urb,
+			_urb->type, urb->status, count, urb->transfer_flags);
+
+	read_lock(&husb->completion_lock);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		goto unlock;
+
+	if (urb->status || !count)
+		goto resubmit;
+
+	if (_urb->type == HCI_SCODATA_PKT) {
+#ifdef CONFIG_BT_HCIUSB_SCO
+		int i;
+		for (i=0; i < urb->number_of_packets; i++) {
+			BT_DBG("desc %d status %d offset %d len %d", i,
+					urb->iso_frame_desc[i].status,
+					urb->iso_frame_desc[i].offset,
+					urb->iso_frame_desc[i].actual_length);
+	
+			if (!urb->iso_frame_desc[i].status)
+				__recv_frame(husb, _urb->type, 
+					urb->transfer_buffer + urb->iso_frame_desc[i].offset,
+					urb->iso_frame_desc[i].actual_length);
+		}
+#else
+		;
+#endif
+	} else {
+		err = __recv_frame(husb, _urb->type, urb->transfer_buffer, count);
+		if (err < 0) { 
+			BT_ERR("%s corrupted packet: type %d count %d",
+					husb->hdev->name, _urb->type, count);
+			hdev->stat.err_rx++;
+		}
+	}
+
+resubmit:
+	urb->dev = husb->udev;
+	err = usb_submit_urb(urb, GFP_ATOMIC);
+	BT_DBG("%s urb %p type %d resubmit status %d", hdev->name, urb,
+			_urb->type, err);
+
+unlock:
+	read_unlock(&husb->completion_lock);
+}
+
+static void hci_usb_tx_complete(struct urb *urb, struct pt_regs *regs)
+{
+	struct _urb *_urb = container_of(urb, struct _urb, urb);
+	struct hci_usb *husb = (void *) urb->context;
+	struct hci_dev *hdev = husb->hdev;
+
+	BT_DBG("%s urb %p status %d flags %x", hdev->name, urb,
+			urb->status, urb->transfer_flags);
+
+	atomic_dec(__pending_tx(husb, _urb->type));
+
+	urb->transfer_buffer = NULL;
+	kfree_skb((struct sk_buff *) _urb->priv);
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return;
+
+	if (!urb->status)
+		hdev->stat.byte_tx += urb->transfer_buffer_length;
+	else
+		hdev->stat.err_tx++;
+
+	read_lock(&husb->completion_lock);
+
+	_urb_unlink(_urb);
+	_urb_queue_tail(__completed_q(husb, _urb->type), _urb);
+
+	hci_usb_tx_wakeup(husb);
+
+	read_unlock(&husb->completion_lock);
+}
+
+static void hci_usb_destruct(struct hci_dev *hdev)
+{
+	struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
+
+	BT_DBG("%s", hdev->name);
+
+	kfree(husb);
+}
+
+static void hci_usb_notify(struct hci_dev *hdev, unsigned int evt)
+{
+	BT_DBG("%s evt %d", hdev->name, evt);
+}
+
+static int hci_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_host_endpoint *bulk_out_ep = NULL;
+	struct usb_host_endpoint *bulk_in_ep = NULL;
+	struct usb_host_endpoint *intr_in_ep = NULL;
+	struct usb_host_endpoint  *ep;
+	struct usb_host_interface *uif;
+	struct usb_interface *isoc_iface;
+	struct hci_usb *husb;
+	struct hci_dev *hdev;
+	int i, e, size, isoc_ifnum, isoc_alts;
+
+	BT_DBG("udev %p intf %p", udev, intf);
+
+	if (!id->driver_info) {
+		const struct usb_device_id *match;
+		match = usb_match_id(intf, blacklist_ids);
+		if (match)
+			id = match;
+	}
+
+	if (ignore || id->driver_info & HCI_IGNORE)
+		return -ENODEV;
+
+	if (intf->cur_altsetting->desc.bInterfaceNumber > 0)
+		return -ENODEV;
+
+	/* Find endpoints that we need */
+	uif = intf->cur_altsetting;
+	for (e = 0; e < uif->desc.bNumEndpoints; e++) {
+		ep = &uif->endpoint[e];
+
+		switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+		case USB_ENDPOINT_XFER_INT:
+			if (ep->desc.bEndpointAddress & USB_DIR_IN)
+				intr_in_ep = ep;
+			break;
+
+		case USB_ENDPOINT_XFER_BULK:
+			if (ep->desc.bEndpointAddress & USB_DIR_IN)
+				bulk_in_ep  = ep;
+			else
+				bulk_out_ep = ep;
+			break;
+		}
+	}
+
+	if (!bulk_in_ep || !bulk_out_ep || !intr_in_ep) {
+		BT_DBG("Bulk endpoints not found");
+		goto done;
+	}
+
+	if (!(husb = kmalloc(sizeof(struct hci_usb), GFP_KERNEL))) {
+		BT_ERR("Can't allocate: control structure");
+		goto done;
+	}
+
+	memset(husb, 0, sizeof(struct hci_usb));
+
+	husb->udev = udev;
+	husb->bulk_out_ep = bulk_out_ep;
+	husb->bulk_in_ep  = bulk_in_ep;
+	husb->intr_in_ep  = intr_in_ep;
+
+	if (id->driver_info & HCI_DIGIANSWER)
+		husb->ctrl_req = USB_TYPE_VENDOR;
+	else
+		husb->ctrl_req = USB_TYPE_CLASS;
+
+	/* Find isochronous endpoints that we can use */
+	size = 0; 
+	isoc_iface = NULL;
+	isoc_alts  = 0;
+	isoc_ifnum = 1;
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+	if (isoc && !(id->driver_info & (HCI_BROKEN_ISOC | HCI_SNIFFER)))
+		isoc_iface = usb_ifnum_to_if(udev, isoc_ifnum);
+
+	if (isoc_iface) {
+		int a;
+		struct usb_host_endpoint *isoc_out_ep = NULL;
+		struct usb_host_endpoint *isoc_in_ep = NULL;
+
+		for (a = 0; a < isoc_iface->num_altsetting; a++) {
+			uif = &isoc_iface->altsetting[a];
+			for (e = 0; e < uif->desc.bNumEndpoints; e++) {
+				ep = &uif->endpoint[e];
+
+				switch (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+				case USB_ENDPOINT_XFER_ISOC:
+					if (le16_to_cpu(ep->desc.wMaxPacketSize) < size ||
+							uif->desc.bAlternateSetting != isoc)
+						break;
+					size = le16_to_cpu(ep->desc.wMaxPacketSize);
+
+					isoc_alts = uif->desc.bAlternateSetting;
+
+					if (ep->desc.bEndpointAddress & USB_DIR_IN)
+						isoc_in_ep  = ep;
+					else
+						isoc_out_ep = ep;
+					break;
+				}
+			}
+		}
+
+		if (!isoc_in_ep || !isoc_out_ep)
+			BT_DBG("Isoc endpoints not found");
+		else {
+			BT_DBG("isoc ifnum %d alts %d", isoc_ifnum, isoc_alts);
+			if (usb_driver_claim_interface(&hci_usb_driver, isoc_iface, husb) != 0)
+				BT_ERR("Can't claim isoc interface");
+			else if (usb_set_interface(udev, isoc_ifnum, isoc_alts)) {
+				BT_ERR("Can't set isoc interface settings");
+				husb->isoc_iface = isoc_iface;
+				usb_driver_release_interface(&hci_usb_driver, isoc_iface);
+				husb->isoc_iface = NULL;
+			} else {
+				husb->isoc_iface  = isoc_iface;
+				husb->isoc_in_ep  = isoc_in_ep;
+				husb->isoc_out_ep = isoc_out_ep;
+			}
+		}
+	}
+#endif
+
+	rwlock_init(&husb->completion_lock);
+
+	for (i = 0; i < 4; i++) {
+		skb_queue_head_init(&husb->transmit_q[i]);
+		_urb_queue_init(&husb->pending_q[i]);
+		_urb_queue_init(&husb->completed_q[i]);
+	}
+
+	/* Initialize and register HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		BT_ERR("Can't allocate HCI device");
+		goto probe_error;
+	}
+
+	husb->hdev = hdev;
+
+	hdev->type = HCI_USB;
+	hdev->driver_data = husb;
+	SET_HCIDEV_DEV(hdev, &intf->dev);
+
+	hdev->open     = hci_usb_open;
+	hdev->close    = hci_usb_close;
+	hdev->flush    = hci_usb_flush;
+	hdev->send     = hci_usb_send_frame;
+	hdev->destruct = hci_usb_destruct;
+	hdev->notify   = hci_usb_notify;
+
+	hdev->owner = THIS_MODULE;
+
+	if (reset || id->driver_info & HCI_RESET)
+		set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
+
+	if (id->driver_info & HCI_SNIFFER) {
+		if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
+			set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
+	}
+
+	if (id->driver_info & HCI_BCM92035) {
+		unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
+		struct sk_buff *skb;
+
+		skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
+		if (skb) {
+			memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
+			skb_queue_tail(&hdev->driver_init, skb);
+		}
+	}
+
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		hci_free_dev(hdev);
+		goto probe_error;
+	}
+
+	usb_set_intfdata(intf, husb);
+	return 0;
+
+probe_error:
+	if (husb->isoc_iface)
+		usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface);
+	kfree(husb);
+
+done:
+	return -EIO;
+}
+
+static void hci_usb_disconnect(struct usb_interface *intf)
+{
+	struct hci_usb *husb = usb_get_intfdata(intf);
+	struct hci_dev *hdev;
+
+	if (!husb || intf == husb->isoc_iface)
+		return;
+
+	usb_set_intfdata(intf, NULL);
+	hdev = husb->hdev;
+
+	BT_DBG("%s", hdev->name);
+
+	hci_usb_close(hdev);
+
+	if (husb->isoc_iface)
+		usb_driver_release_interface(&hci_usb_driver, husb->isoc_iface);
+
+	if (hci_unregister_dev(hdev) < 0)
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+
+	hci_free_dev(hdev);
+}
+
+static struct usb_driver hci_usb_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "hci_usb",
+	.probe		= hci_usb_probe,
+	.disconnect	= hci_usb_disconnect,
+	.id_table	= bluetooth_ids,
+};
+
+static int __init hci_usb_init(void)
+{
+	int err;
+
+	BT_INFO("HCI USB driver ver %s", VERSION);
+
+	if ((err = usb_register(&hci_usb_driver)) < 0)
+		BT_ERR("Failed to register HCI USB driver");
+
+	return err;
+}
+
+static void __exit hci_usb_exit(void)
+{
+	usb_deregister(&hci_usb_driver);
+}
+
+module_init(hci_usb_init);
+module_exit(hci_usb_exit);
+
+module_param(ignore, bool, 0644);
+MODULE_PARM_DESC(ignore, "Ignore devices from the matching table");
+
+module_param(reset, bool, 0644);
+MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
+
+#ifdef CONFIG_BT_HCIUSB_SCO
+module_param(isoc, int, 0644);
+MODULE_PARM_DESC(isoc, "Set isochronous transfers for SCO over HCI support");
+#endif
+
+MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>, Marcel Holtmann <marcel@holtmann.org>");
+MODULE_DESCRIPTION("Bluetooth HCI USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/bluetooth/hci_usb.h b/drivers/bluetooth/hci_usb.h
new file mode 100644
index 0000000..29936b4
--- /dev/null
+++ b/drivers/bluetooth/hci_usb.h
@@ -0,0 +1,128 @@
+/* 
+   HCI USB driver for Linux Bluetooth protocol stack (BlueZ)
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/* Class, SubClass, and Protocol codes that describe a Bluetooth device */
+#define HCI_DEV_CLASS		0xe0	/* Wireless class */
+#define HCI_DEV_SUBCLASS	0x01	/* RF subclass */
+#define HCI_DEV_PROTOCOL	0x01	/* Bluetooth programming protocol */
+
+#define HCI_IGNORE		0x01
+#define HCI_RESET		0x02
+#define HCI_DIGIANSWER		0x04
+#define HCI_SNIFFER		0x08
+#define HCI_BROKEN_ISOC		0x10
+#define HCI_BCM92035		0x20
+
+#define HCI_MAX_IFACE_NUM	3
+
+#define HCI_MAX_BULK_TX		4
+#define HCI_MAX_BULK_RX		1
+
+#define HCI_MAX_ISOC_RX		2
+#define HCI_MAX_ISOC_TX		2
+
+#define HCI_MAX_ISOC_FRAMES	10
+
+struct _urb_queue {
+	struct list_head head;
+	spinlock_t       lock;
+};
+
+struct _urb {
+	struct list_head  list;
+	struct _urb_queue *queue;
+	int               type;
+	void              *priv;
+	struct urb        urb;
+};
+
+static inline void _urb_free(struct _urb *_urb)
+{
+	kfree(_urb);
+}
+
+static inline void _urb_queue_init(struct _urb_queue *q)
+{
+	INIT_LIST_HEAD(&q->head);
+	spin_lock_init(&q->lock);
+}
+
+static inline void _urb_queue_head(struct _urb_queue *q, struct _urb *_urb)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&q->lock, flags);
+	list_add(&_urb->list, &q->head); _urb->queue = q;
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+
+static inline void _urb_queue_tail(struct _urb_queue *q, struct _urb *_urb)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&q->lock, flags);
+	list_add_tail(&_urb->list, &q->head); _urb->queue = q;
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+
+static inline void _urb_unlink(struct _urb *_urb)
+{
+	struct _urb_queue *q = _urb->queue;
+	unsigned long flags;
+	if (q) {
+		spin_lock_irqsave(&q->lock, flags);
+		list_del(&_urb->list); _urb->queue = NULL;
+		spin_unlock_irqrestore(&q->lock, flags);
+	}
+}
+
+struct hci_usb {
+	struct hci_dev		*hdev;
+
+	unsigned long		state;
+	
+	struct usb_device	*udev;
+	
+	struct usb_host_endpoint	*bulk_in_ep;
+	struct usb_host_endpoint	*bulk_out_ep;
+	struct usb_host_endpoint	*intr_in_ep;
+
+	struct usb_interface		*isoc_iface;
+	struct usb_host_endpoint	*isoc_out_ep;
+	struct usb_host_endpoint	*isoc_in_ep;
+
+	__u8			ctrl_req;
+
+	struct sk_buff_head	transmit_q[4];
+	struct sk_buff		*reassembly[4];		/* Reassembly buffers */
+
+	rwlock_t		completion_lock;
+
+	atomic_t		pending_tx[4];		/* Number of pending requests */
+	struct _urb_queue	pending_q[4];		/* Pending requests */
+	struct _urb_queue	completed_q[4];		/* Completed requests */
+};
+
+/* States  */
+#define HCI_USB_TX_PROCESS	1
+#define HCI_USB_TX_WAKEUP	2
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
new file mode 100644
index 0000000..3256192
--- /dev/null
+++ b/drivers/bluetooth/hci_vhci.c
@@ -0,0 +1,364 @@
+/* 
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * Bluetooth HCI virtual device driver.
+ *
+ * $Id: hci_vhci.c,v 1.3 2002/04/17 17:37:20 maxk Exp $ 
+ */
+#define VERSION "1.1"
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/poll.h>
+#include <linux/fcntl.h>
+#include <linux/init.h>
+#include <linux/random.h>
+
+#include <linux/skbuff.h>
+#include <linux/miscdevice.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+#include "hci_vhci.h"
+
+/* HCI device part */
+
+static int hci_vhci_open(struct hci_dev *hdev)
+{
+	set_bit(HCI_RUNNING, &hdev->flags);
+	return 0;
+}
+
+static int hci_vhci_flush(struct hci_dev *hdev)
+{
+	struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) hdev->driver_data;
+	skb_queue_purge(&hci_vhci->readq);
+	return 0;
+}
+
+static int hci_vhci_close(struct hci_dev *hdev)
+{
+	if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+		return 0;
+
+	hci_vhci_flush(hdev);
+	return 0;
+}
+
+static void hci_vhci_destruct(struct hci_dev *hdev)
+{
+	struct hci_vhci_struct *vhci;
+
+	if (!hdev) return;
+
+	vhci = (struct hci_vhci_struct *) hdev->driver_data;
+	kfree(vhci);
+}
+
+static int hci_vhci_send_frame(struct sk_buff *skb)
+{
+	struct hci_dev* hdev = (struct hci_dev *) skb->dev;
+	struct hci_vhci_struct *hci_vhci;
+
+	if (!hdev) {
+		BT_ERR("Frame for uknown device (hdev=NULL)");
+		return -ENODEV;
+	}
+
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
+		return -EBUSY;
+
+	hci_vhci = (struct hci_vhci_struct *) hdev->driver_data;
+
+	memcpy(skb_push(skb, 1), &skb->pkt_type, 1);
+	skb_queue_tail(&hci_vhci->readq, skb);
+
+	if (hci_vhci->flags & VHCI_FASYNC)
+		kill_fasync(&hci_vhci->fasync, SIGIO, POLL_IN);
+	wake_up_interruptible(&hci_vhci->read_wait);
+
+	return 0;
+}
+
+/* Character device part */
+
+/* Poll */
+static unsigned int hci_vhci_chr_poll(struct file *file, poll_table * wait)
+{  
+	struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+
+	poll_wait(file, &hci_vhci->read_wait, wait);
+ 
+	if (skb_queue_len(&hci_vhci->readq))
+		return POLLIN | POLLRDNORM;
+
+	return POLLOUT | POLLWRNORM;
+}
+
+/* Get packet from user space buffer(already verified) */
+static inline ssize_t hci_vhci_get_user(struct hci_vhci_struct *hci_vhci, const char __user *buf, size_t count)
+{
+	struct sk_buff *skb;
+
+	if (count > HCI_MAX_FRAME_SIZE)
+		return -EINVAL;
+
+	if (!(skb = bt_skb_alloc(count, GFP_KERNEL)))
+		return -ENOMEM;
+	
+	if (copy_from_user(skb_put(skb, count), buf, count)) {
+		kfree_skb(skb);
+		return -EFAULT;
+	}
+
+	skb->dev = (void *) hci_vhci->hdev;
+	skb->pkt_type = *((__u8 *) skb->data);
+	skb_pull(skb, 1);
+
+	hci_recv_frame(skb);
+
+	return count;
+} 
+
+/* Write */
+static ssize_t hci_vhci_chr_write(struct file * file, const char __user * buf, 
+			     size_t count, loff_t *pos)
+{
+	struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+
+	if (!access_ok(VERIFY_READ, buf, count))
+		return -EFAULT;
+
+	return hci_vhci_get_user(hci_vhci, buf, count);
+}
+
+/* Put packet to user space buffer(already verified) */
+static inline ssize_t hci_vhci_put_user(struct hci_vhci_struct *hci_vhci,
+				       struct sk_buff *skb, char __user *buf,
+				       int count)
+{
+	int len = count, total = 0;
+	char __user *ptr = buf;
+
+	len = min_t(unsigned int, skb->len, len);
+	if (copy_to_user(ptr, skb->data, len))
+		return -EFAULT;
+	total += len;
+
+	hci_vhci->hdev->stat.byte_tx += len;
+	switch (skb->pkt_type) {
+		case HCI_COMMAND_PKT:
+			hci_vhci->hdev->stat.cmd_tx++;
+			break;
+
+		case HCI_ACLDATA_PKT:
+			hci_vhci->hdev->stat.acl_tx++;
+			break;
+
+		case HCI_SCODATA_PKT:
+			hci_vhci->hdev->stat.cmd_tx++;
+			break;
+	};
+
+	return total;
+}
+
+/* Read */
+static ssize_t hci_vhci_chr_read(struct file * file, char __user * buf, size_t count, loff_t *pos)
+{
+	struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+	DECLARE_WAITQUEUE(wait, current);
+	struct sk_buff *skb;
+	ssize_t ret = 0;
+
+	add_wait_queue(&hci_vhci->read_wait, &wait);
+	while (count) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		/* Read frames from device queue */
+		if (!(skb = skb_dequeue(&hci_vhci->readq))) {
+			if (file->f_flags & O_NONBLOCK) {
+				ret = -EAGAIN;
+				break;
+			}
+			if (signal_pending(current)) {
+				ret = -ERESTARTSYS;
+				break;
+			}
+
+			/* Nothing to read, let's sleep */
+			schedule();
+			continue;
+		}
+
+		if (access_ok(VERIFY_WRITE, buf, count))
+			ret = hci_vhci_put_user(hci_vhci, skb, buf, count);
+		else
+			ret = -EFAULT;
+
+		kfree_skb(skb);
+		break;
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(&hci_vhci->read_wait, &wait);
+
+	return ret;
+}
+
+static loff_t hci_vhci_chr_lseek(struct file * file, loff_t offset, int origin)
+{
+	return -ESPIPE;
+}
+
+static int hci_vhci_chr_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+	return -EINVAL;
+}
+
+static int hci_vhci_chr_fasync(int fd, struct file *file, int on)
+{
+	struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+	int ret;
+
+	if ((ret = fasync_helper(fd, file, on, &hci_vhci->fasync)) < 0)
+		return ret; 
+ 
+	if (on)
+		hci_vhci->flags |= VHCI_FASYNC;
+	else 
+		hci_vhci->flags &= ~VHCI_FASYNC;
+
+	return 0;
+}
+
+static int hci_vhci_chr_open(struct inode *inode, struct file * file)
+{
+	struct hci_vhci_struct *hci_vhci = NULL; 
+	struct hci_dev *hdev;
+
+	if (!(hci_vhci = kmalloc(sizeof(struct hci_vhci_struct), GFP_KERNEL)))
+		return -ENOMEM;
+
+	memset(hci_vhci, 0, sizeof(struct hci_vhci_struct));
+
+	skb_queue_head_init(&hci_vhci->readq);
+	init_waitqueue_head(&hci_vhci->read_wait);
+
+	/* Initialize and register HCI device */
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		kfree(hci_vhci);
+		return -ENOMEM;
+	}
+
+	hci_vhci->hdev = hdev;
+
+	hdev->type = HCI_VHCI;
+	hdev->driver_data = hci_vhci;
+
+	hdev->open  = hci_vhci_open;
+	hdev->close = hci_vhci_close;
+	hdev->flush = hci_vhci_flush;
+	hdev->send  = hci_vhci_send_frame;
+	hdev->destruct = hci_vhci_destruct;
+
+	hdev->owner = THIS_MODULE;
+	
+	if (hci_register_dev(hdev) < 0) {
+		kfree(hci_vhci);
+		hci_free_dev(hdev);
+		return -EBUSY;
+	}
+
+	file->private_data = hci_vhci;
+	return nonseekable_open(inode, file);   
+}
+
+static int hci_vhci_chr_close(struct inode *inode, struct file *file)
+{
+	struct hci_vhci_struct *hci_vhci = (struct hci_vhci_struct *) file->private_data;
+	struct hci_dev *hdev = hci_vhci->hdev;
+
+	if (hci_unregister_dev(hdev) < 0) {
+		BT_ERR("Can't unregister HCI device %s", hdev->name);
+	}
+
+	hci_free_dev(hdev);
+
+	file->private_data = NULL;
+	return 0;
+}
+
+static struct file_operations hci_vhci_fops = {
+	.owner	= THIS_MODULE,	
+	.llseek	= hci_vhci_chr_lseek,
+	.read	= hci_vhci_chr_read,
+	.write	= hci_vhci_chr_write,
+	.poll	= hci_vhci_chr_poll,
+	.ioctl	= hci_vhci_chr_ioctl,
+	.open	= hci_vhci_chr_open,
+	.release	= hci_vhci_chr_close,
+	.fasync	= hci_vhci_chr_fasync		
+};
+
+static struct miscdevice hci_vhci_miscdev=
+{
+        VHCI_MINOR,
+        "hci_vhci",
+        &hci_vhci_fops
+};
+
+static int __init hci_vhci_init(void)
+{
+	BT_INFO("VHCI driver ver %s", VERSION);
+
+	if (misc_register(&hci_vhci_miscdev)) {
+		BT_ERR("Can't register misc device %d\n", VHCI_MINOR);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static void hci_vhci_cleanup(void)
+{
+	misc_deregister(&hci_vhci_miscdev);
+}
+
+module_init(hci_vhci_init);
+module_exit(hci_vhci_cleanup);
+
+MODULE_AUTHOR("Maxim Krasnyansky <maxk@qualcomm.com>");
+MODULE_DESCRIPTION("Bluetooth VHCI driver ver " VERSION);
+MODULE_LICENSE("GPL"); 
diff --git a/drivers/bluetooth/hci_vhci.h b/drivers/bluetooth/hci_vhci.h
new file mode 100644
index 0000000..53b11f9
--- /dev/null
+++ b/drivers/bluetooth/hci_vhci.h
@@ -0,0 +1,50 @@
+/* 
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2000-2001 Qualcomm Incorporated
+
+   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 
+   SOFTWARE IS DISCLAIMED.
+*/
+
+/*
+ * $Id: hci_vhci.h,v 1.1.1.1 2002/03/08 21:03:15 maxk Exp $
+ */
+
+#ifndef __HCI_VHCI_H
+#define __HCI_VHCI_H
+
+#ifdef __KERNEL__
+
+struct hci_vhci_struct {
+	struct hci_dev       *hdev;
+	__u32                flags;
+	wait_queue_head_t    read_wait;
+	struct sk_buff_head  readq;
+	struct fasync_struct *fasync;
+};
+
+/* VHCI device flags */
+#define VHCI_FASYNC		0x0010
+
+#endif /* __KERNEL__ */
+
+#define VHCI_DEV	"/dev/vhci"
+#define VHCI_MINOR	250
+
+#endif /* __HCI_VHCI_H */