path: root/drivers/bluetooth/hci_usb.c

/* 
   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...)
#endif

#ifndef CONFIG_BT_HCIUSB_ZERO_PACKET
#undef  URB_ZERO_PACKET
#define URB_ZERO_PACKET 0
#endif

static int ignore = 0;
static int ignore_dga = 0;
static int ignore_csr = 0;
static int ignore_sniffer = 0;
static int reset = 0;

#ifdef CONFIG_BT_HCIUSB_SCO
static int isoc = 2;
#endif

#define VERSION "2.9"

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[] = {
	/* CSR BlueCore devices */
	{ USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR },

	/* 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 },

	/* Kensington Bluetooth USB adapter */
	{ USB_DEVICE(0x047d, 0x105d), .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, gfp_t 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(