943d56b0a5
This removes the unnecessary ignore parameter, which is useless. There are alternate methods of kicking a driver off an USB device. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
1137 lines
28 KiB
C
1137 lines
28 KiB
C
/*
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HCI USB driver for Linux Bluetooth protocol stack (BlueZ)
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Copyright (C) 2000-2001 Qualcomm Incorporated
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Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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Copyright (C) 2003 Maxim Krasnyansky <maxk@qualcomm.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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/*
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* Bluetooth HCI USB driver.
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* Based on original USB Bluetooth driver for Linux kernel
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* Copyright (c) 2000 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (c) 2000 Mark Douglas Corner <mcorner@umich.edu>
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/unistd.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/moduleparam.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/skbuff.h>
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#include <linux/usb.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include "hci_usb.h"
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#ifndef CONFIG_BT_HCIUSB_DEBUG
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#undef BT_DBG
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#define BT_DBG(D...)
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#endif
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#ifndef CONFIG_BT_HCIUSB_ZERO_PACKET
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#undef URB_ZERO_PACKET
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#define URB_ZERO_PACKET 0
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#endif
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static int ignore_dga;
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static int ignore_csr;
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static int ignore_sniffer;
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static int disable_scofix;
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static int force_scofix;
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static int reset;
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#ifdef CONFIG_BT_HCIUSB_SCO
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static int isoc = 2;
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#endif
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#define VERSION "2.10"
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static struct usb_driver hci_usb_driver;
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static struct usb_device_id bluetooth_ids[] = {
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/* Generic Bluetooth USB device */
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{ USB_DEVICE_INFO(HCI_DEV_CLASS, HCI_DEV_SUBCLASS, HCI_DEV_PROTOCOL) },
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/* AVM BlueFRITZ! USB v2.0 */
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{ USB_DEVICE(0x057c, 0x3800) },
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/* Bluetooth Ultraport Module from IBM */
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{ USB_DEVICE(0x04bf, 0x030a) },
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/* ALPS Modules with non-standard id */
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{ USB_DEVICE(0x044e, 0x3001) },
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{ USB_DEVICE(0x044e, 0x3002) },
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/* Ericsson with non-standard id */
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{ USB_DEVICE(0x0bdb, 0x1002) },
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/* Canyon CN-BTU1 with HID interfaces */
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{ USB_DEVICE(0x0c10, 0x0000), .driver_info = HCI_RESET },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE (usb, bluetooth_ids);
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static struct usb_device_id blacklist_ids[] = {
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/* CSR BlueCore devices */
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{ USB_DEVICE(0x0a12, 0x0001), .driver_info = HCI_CSR },
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/* Broadcom BCM2033 without firmware */
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{ USB_DEVICE(0x0a5c, 0x2033), .driver_info = HCI_IGNORE },
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/* Broadcom BCM2035 */
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{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = HCI_BCM92035 },
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/* Broadcom BCM2045 */
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{ USB_DEVICE(0x0a5c, 0x2039), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x2101), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* IBM/Lenovo ThinkPad with Broadcom chip */
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{ USB_DEVICE(0x0a5c, 0x201e), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x2110), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* Targus ACB10US */
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{ USB_DEVICE(0x0a5c, 0x2100), .driver_info = HCI_RESET },
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/* ANYCOM Bluetooth USB-200 and USB-250 */
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{ USB_DEVICE(0x0a5c, 0x2111), .driver_info = HCI_RESET },
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/* HP laptop with Broadcom chip */
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{ USB_DEVICE(0x03f0, 0x171d), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* Dell laptop with Broadcom chip */
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{ USB_DEVICE(0x413c, 0x8126), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* Dell Wireless 370 */
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{ USB_DEVICE(0x413c, 0x8156), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* Dell Wireless 410 */
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{ USB_DEVICE(0x413c, 0x8152), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* Broadcom 2046 */
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{ USB_DEVICE(0x0a5c, 0x2151), .driver_info = HCI_RESET },
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/* Microsoft Wireless Transceiver for Bluetooth 2.0 */
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{ USB_DEVICE(0x045e, 0x009c), .driver_info = HCI_RESET },
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/* Kensington Bluetooth USB adapter */
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{ USB_DEVICE(0x047d, 0x105d), .driver_info = HCI_RESET },
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{ USB_DEVICE(0x047d, 0x105e), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* ISSC Bluetooth Adapter v3.1 */
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{ USB_DEVICE(0x1131, 0x1001), .driver_info = HCI_RESET },
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/* RTX Telecom based adapters with buggy SCO support */
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{ USB_DEVICE(0x0400, 0x0807), .driver_info = HCI_BROKEN_ISOC },
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{ USB_DEVICE(0x0400, 0x080a), .driver_info = HCI_BROKEN_ISOC },
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/* CONWISE Technology based adapters with buggy SCO support */
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{ USB_DEVICE(0x0e5e, 0x6622), .driver_info = HCI_BROKEN_ISOC },
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/* Belkin F8T012 and F8T013 devices */
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{ USB_DEVICE(0x050d, 0x0012), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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{ USB_DEVICE(0x050d, 0x0013), .driver_info = HCI_RESET | HCI_WRONG_SCO_MTU },
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/* Digianswer devices */
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{ USB_DEVICE(0x08fd, 0x0001), .driver_info = HCI_DIGIANSWER },
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{ USB_DEVICE(0x08fd, 0x0002), .driver_info = HCI_IGNORE },
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/* CSR BlueCore Bluetooth Sniffer */
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{ USB_DEVICE(0x0a12, 0x0002), .driver_info = HCI_SNIFFER },
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/* Frontline ComProbe Bluetooth Sniffer */
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{ USB_DEVICE(0x16d3, 0x0002), .driver_info = HCI_SNIFFER },
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{ } /* Terminating entry */
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};
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static struct _urb *_urb_alloc(int isoc, gfp_t gfp)
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{
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struct _urb *_urb = kmalloc(sizeof(struct _urb) +
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sizeof(struct usb_iso_packet_descriptor) * isoc, gfp);
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if (_urb) {
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memset(_urb, 0, sizeof(*_urb));
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usb_init_urb(&_urb->urb);
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}
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return _urb;
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}
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static struct _urb *_urb_dequeue(struct _urb_queue *q)
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{
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struct _urb *_urb = NULL;
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unsigned long flags;
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spin_lock_irqsave(&q->lock, flags);
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{
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struct list_head *head = &q->head;
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struct list_head *next = head->next;
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if (next != head) {
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_urb = list_entry(next, struct _urb, list);
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list_del(next); _urb->queue = NULL;
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}
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}
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spin_unlock_irqrestore(&q->lock, flags);
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return _urb;
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}
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static void hci_usb_rx_complete(struct urb *urb);
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static void hci_usb_tx_complete(struct urb *urb);
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#define __pending_tx(husb, type) (&husb->pending_tx[type-1])
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#define __pending_q(husb, type) (&husb->pending_q[type-1])
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#define __completed_q(husb, type) (&husb->completed_q[type-1])
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#define __transmit_q(husb, type) (&husb->transmit_q[type-1])
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static inline struct _urb *__get_completed(struct hci_usb *husb, int type)
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{
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return _urb_dequeue(__completed_q(husb, type));
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}
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#ifdef CONFIG_BT_HCIUSB_SCO
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static void __fill_isoc_desc(struct urb *urb, int len, int mtu)
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{
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int offset = 0, i;
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BT_DBG("len %d mtu %d", len, mtu);
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for (i=0; i < HCI_MAX_ISOC_FRAMES && len >= mtu; i++, offset += mtu, len -= mtu) {
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urb->iso_frame_desc[i].offset = offset;
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urb->iso_frame_desc[i].length = mtu;
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BT_DBG("desc %d offset %d len %d", i, offset, mtu);
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}
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if (len && i < HCI_MAX_ISOC_FRAMES) {
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urb->iso_frame_desc[i].offset = offset;
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urb->iso_frame_desc[i].length = len;
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BT_DBG("desc %d offset %d len %d", i, offset, len);
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i++;
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}
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urb->number_of_packets = i;
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}
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#endif
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static int hci_usb_intr_rx_submit(struct hci_usb *husb)
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{
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struct _urb *_urb;
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struct urb *urb;
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int err, pipe, interval, size;
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void *buf;
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BT_DBG("%s", husb->hdev->name);
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size = le16_to_cpu(husb->intr_in_ep->desc.wMaxPacketSize);
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buf = kmalloc(size, GFP_ATOMIC);
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if (!buf)
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return -ENOMEM;
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_urb = _urb_alloc(0, GFP_ATOMIC);
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if (!_urb) {
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kfree(buf);
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return -ENOMEM;
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}
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_urb->type = HCI_EVENT_PKT;
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_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
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urb = &_urb->urb;
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pipe = usb_rcvintpipe(husb->udev, husb->intr_in_ep->desc.bEndpointAddress);
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interval = husb->intr_in_ep->desc.bInterval;
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usb_fill_int_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb, interval);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err) {
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BT_ERR("%s intr rx submit failed urb %p err %d",
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husb->hdev->name, urb, err);
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_urb_unlink(_urb);
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kfree(_urb);
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kfree(buf);
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}
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return err;
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}
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static int hci_usb_bulk_rx_submit(struct hci_usb *husb)
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{
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struct _urb *_urb;
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struct urb *urb;
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int err, pipe, size = HCI_MAX_FRAME_SIZE;
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void *buf;
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buf = kmalloc(size, GFP_ATOMIC);
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if (!buf)
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return -ENOMEM;
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_urb = _urb_alloc(0, GFP_ATOMIC);
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if (!_urb) {
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kfree(buf);
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return -ENOMEM;
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}
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_urb->type = HCI_ACLDATA_PKT;
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_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
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urb = &_urb->urb;
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pipe = usb_rcvbulkpipe(husb->udev, husb->bulk_in_ep->desc.bEndpointAddress);
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usb_fill_bulk_urb(urb, husb->udev, pipe, buf, size, hci_usb_rx_complete, husb);
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urb->transfer_flags = 0;
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BT_DBG("%s urb %p", husb->hdev->name, urb);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err) {
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BT_ERR("%s bulk rx submit failed urb %p err %d",
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husb->hdev->name, urb, err);
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_urb_unlink(_urb);
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kfree(_urb);
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kfree(buf);
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}
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return err;
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}
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#ifdef CONFIG_BT_HCIUSB_SCO
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static int hci_usb_isoc_rx_submit(struct hci_usb *husb)
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{
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struct _urb *_urb;
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struct urb *urb;
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int err, mtu, size;
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void *buf;
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mtu = le16_to_cpu(husb->isoc_in_ep->desc.wMaxPacketSize);
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size = mtu * HCI_MAX_ISOC_FRAMES;
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buf = kmalloc(size, GFP_ATOMIC);
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if (!buf)
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return -ENOMEM;
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_urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC);
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if (!_urb) {
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kfree(buf);
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return -ENOMEM;
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}
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_urb->type = HCI_SCODATA_PKT;
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_urb_queue_tail(__pending_q(husb, _urb->type), _urb);
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urb = &_urb->urb;
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urb->context = husb;
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urb->dev = husb->udev;
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urb->pipe = usb_rcvisocpipe(husb->udev, husb->isoc_in_ep->desc.bEndpointAddress);
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urb->complete = hci_usb_rx_complete;
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urb->interval = husb->isoc_in_ep->desc.bInterval;
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urb->transfer_buffer_length = size;
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urb->transfer_buffer = buf;
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urb->transfer_flags = URB_ISO_ASAP;
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__fill_isoc_desc(urb, size, mtu);
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BT_DBG("%s urb %p", husb->hdev->name, urb);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err) {
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BT_ERR("%s isoc rx submit failed urb %p err %d",
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husb->hdev->name, urb, err);
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_urb_unlink(_urb);
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kfree(_urb);
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kfree(buf);
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}
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return err;
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}
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#endif
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/* Initialize device */
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static int hci_usb_open(struct hci_dev *hdev)
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{
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struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
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int i, err;
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unsigned long flags;
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BT_DBG("%s", hdev->name);
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if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
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return 0;
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write_lock_irqsave(&husb->completion_lock, flags);
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err = hci_usb_intr_rx_submit(husb);
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if (!err) {
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for (i = 0; i < HCI_MAX_BULK_RX; i++)
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hci_usb_bulk_rx_submit(husb);
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#ifdef CONFIG_BT_HCIUSB_SCO
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if (husb->isoc_iface)
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for (i = 0; i < HCI_MAX_ISOC_RX; i++)
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hci_usb_isoc_rx_submit(husb);
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#endif
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} else {
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clear_bit(HCI_RUNNING, &hdev->flags);
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}
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write_unlock_irqrestore(&husb->completion_lock, flags);
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return err;
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}
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/* Reset device */
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static int hci_usb_flush(struct hci_dev *hdev)
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{
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struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
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int i;
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BT_DBG("%s", hdev->name);
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for (i = 0; i < 4; i++)
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skb_queue_purge(&husb->transmit_q[i]);
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return 0;
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}
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static void hci_usb_unlink_urbs(struct hci_usb *husb)
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{
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int i;
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BT_DBG("%s", husb->hdev->name);
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for (i = 0; i < 4; i++) {
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struct _urb *_urb;
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struct urb *urb;
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/* Kill pending requests */
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while ((_urb = _urb_dequeue(&husb->pending_q[i]))) {
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urb = &_urb->urb;
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BT_DBG("%s unlinking _urb %p type %d urb %p",
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husb->hdev->name, _urb, _urb->type, urb);
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usb_kill_urb(urb);
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_urb_queue_tail(__completed_q(husb, _urb->type), _urb);
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}
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/* Release completed requests */
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while ((_urb = _urb_dequeue(&husb->completed_q[i]))) {
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urb = &_urb->urb;
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BT_DBG("%s freeing _urb %p type %d urb %p",
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husb->hdev->name, _urb, _urb->type, urb);
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kfree(urb->setup_packet);
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kfree(urb->transfer_buffer);
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kfree(_urb);
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}
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}
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}
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/* Close device */
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static int hci_usb_close(struct hci_dev *hdev)
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{
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struct hci_usb *husb = (struct hci_usb *) hdev->driver_data;
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unsigned long flags;
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if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
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return 0;
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BT_DBG("%s", hdev->name);
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/* Synchronize with completion handlers */
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write_lock_irqsave(&husb->completion_lock, flags);
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write_unlock_irqrestore(&husb->completion_lock, flags);
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hci_usb_unlink_urbs(husb);
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hci_usb_flush(hdev);
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return 0;
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}
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static int __tx_submit(struct hci_usb *husb, struct _urb *_urb)
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{
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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, bt_cb(skb)->pkt_type);
|
|
struct usb_ctrlrequest *dr;
|
|
struct urb *urb;
|
|
|
|
if (!_urb) {
|
|
_urb = _urb_alloc(0, GFP_ATOMIC);
|
|
if (!_urb)
|
|
return -ENOMEM;
|
|
_urb->type = bt_cb(skb)->pkt_type;
|
|
|
|
dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
|
|
if (!dr) {
|
|
kfree(_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, bt_cb(skb)->pkt_type);
|
|
struct urb *urb;
|
|
int pipe;
|
|
|
|
if (!_urb) {
|
|
_urb = _urb_alloc(0, GFP_ATOMIC);
|
|
if (!_urb)
|
|
return -ENOMEM;
|
|
_urb->type = bt_cb(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, bt_cb(skb)->pkt_type);
|
|
struct urb *urb;
|
|
|
|
if (!_urb) {
|
|
_urb = _urb_alloc(HCI_MAX_ISOC_FRAMES, GFP_ATOMIC);
|
|
if (!_urb)
|
|
return -ENOMEM;
|
|
_urb->type = bt_cb(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, bt_cb(skb)->pkt_type, skb->len);
|
|
|
|
husb = (struct hci_usb *) hdev->driver_data;
|
|
|
|
switch (bt_cb(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, bt_cb(skb)->pkt_type), skb);
|
|
hci_usb_tx_wakeup(husb);
|
|
|
|
read_unlock(&husb->completion_lock);
|
|
return 0;
|
|
}
|
|
|
|
static void hci_usb_rx_complete(struct urb *urb)
|
|
{
|
|
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) {
|
|
husb->hdev->stat.byte_rx += urb->iso_frame_desc[i].actual_length;
|
|
hci_recv_fragment(husb->hdev, _urb->type,
|
|
urb->transfer_buffer + urb->iso_frame_desc[i].offset,
|
|
urb->iso_frame_desc[i].actual_length);
|
|
}
|
|
}
|
|
#else
|
|
;
|
|
#endif
|
|
} else {
|
|
husb->hdev->stat.byte_rx += count;
|
|
err = hci_recv_fragment(husb->hdev, _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 _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 (id->driver_info & HCI_IGNORE)
|
|
return -ENODEV;
|
|
|
|
if (ignore_dga && id->driver_info & HCI_DIGIANSWER)
|
|
return -ENODEV;
|
|
|
|
if (ignore_csr && id->driver_info & HCI_CSR)
|
|
return -ENODEV;
|
|
|
|
if (ignore_sniffer && id->driver_info & HCI_SNIFFER)
|
|
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 = kzalloc(sizeof(struct hci_usb), GFP_KERNEL))) {
|
|
BT_ERR("Can't allocate: control structure");
|
|
goto done;
|
|
}
|
|
|
|
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 (force_scofix || id->driver_info & HCI_WRONG_SCO_MTU) {
|
|
if (!disable_scofix)
|
|
set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &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 int hci_usb_suspend(struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
struct hci_usb *husb = usb_get_intfdata(intf);
|
|
struct list_head killed;
|
|
unsigned long flags;
|
|
int i;
|
|
|
|
if (!husb || intf == husb->isoc_iface)
|
|
return 0;
|
|
|
|
hci_suspend_dev(husb->hdev);
|
|
|
|
INIT_LIST_HEAD(&killed);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
struct _urb_queue *q = &husb->pending_q[i];
|
|
struct _urb *_urb, *_tmp;
|
|
|
|
while ((_urb = _urb_dequeue(q))) {
|
|
/* reset queue since _urb_dequeue sets it to NULL */
|
|
_urb->queue = q;
|
|
usb_kill_urb(&_urb->urb);
|
|
list_add(&_urb->list, &killed);
|
|
}
|
|
|
|
spin_lock_irqsave(&q->lock, flags);
|
|
|
|
list_for_each_entry_safe(_urb, _tmp, &killed, list) {
|
|
list_move_tail(&_urb->list, &q->head);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&q->lock, flags);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hci_usb_resume(struct usb_interface *intf)
|
|
{
|
|
struct hci_usb *husb = usb_get_intfdata(intf);
|
|
unsigned long flags;
|
|
int i, err = 0;
|
|
|
|
if (!husb || intf == husb->isoc_iface)
|
|
return 0;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
struct _urb_queue *q = &husb->pending_q[i];
|
|
struct _urb *_urb;
|
|
|
|
spin_lock_irqsave(&q->lock, flags);
|
|
|
|
list_for_each_entry(_urb, &q->head, list) {
|
|
err = usb_submit_urb(&_urb->urb, GFP_ATOMIC);
|
|
if (err)
|
|
break;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&q->lock, flags);
|
|
|
|
if (err)
|
|
return -EIO;
|
|
}
|
|
|
|
hci_resume_dev(husb->hdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct usb_driver hci_usb_driver = {
|
|
.name = "hci_usb",
|
|
.probe = hci_usb_probe,
|
|
.disconnect = hci_usb_disconnect,
|
|
.suspend = hci_usb_suspend,
|
|
.resume = hci_usb_resume,
|
|
.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_dga, bool, 0644);
|
|
MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
|
|
|
|
module_param(ignore_csr, bool, 0644);
|
|
MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
|
|
|
|
module_param(ignore_sniffer, bool, 0644);
|
|
MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
|
|
|
|
module_param(disable_scofix, bool, 0644);
|
|
MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
|
|
|
|
module_param(force_scofix, bool, 0644);
|
|
MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
|
|
|
|
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");
|