mirror of https://gitee.com/openkylin/linux.git
1260 lines
30 KiB
C
1260 lines
30 KiB
C
/*
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*
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* Generic Bluetooth USB driver
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*
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* Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <linux/sched.h>
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#include <linux/errno.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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#define VERSION "0.6"
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static bool ignore_dga;
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static bool ignore_csr;
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static bool ignore_sniffer;
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static bool disable_scofix;
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static bool force_scofix;
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static bool reset = 1;
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static struct usb_driver btusb_driver;
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#define BTUSB_IGNORE 0x01
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#define BTUSB_DIGIANSWER 0x02
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#define BTUSB_CSR 0x04
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#define BTUSB_SNIFFER 0x08
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#define BTUSB_BCM92035 0x10
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#define BTUSB_BROKEN_ISOC 0x20
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#define BTUSB_WRONG_SCO_MTU 0x40
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#define BTUSB_ATH3012 0x80
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static struct usb_device_id btusb_table[] = {
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/* Generic Bluetooth USB device */
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{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
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/* Broadcom SoftSailing reporting vendor specific */
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{ USB_DEVICE(0x0a5c, 0x21e1) },
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/* Apple MacBookPro 7,1 */
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{ USB_DEVICE(0x05ac, 0x8213) },
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/* Apple iMac11,1 */
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{ USB_DEVICE(0x05ac, 0x8215) },
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/* Apple MacBookPro6,2 */
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{ USB_DEVICE(0x05ac, 0x8218) },
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/* Apple MacBookAir3,1, MacBookAir3,2 */
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{ USB_DEVICE(0x05ac, 0x821b) },
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/* Apple MacBookAir4,1 */
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{ USB_DEVICE(0x05ac, 0x821f) },
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/* Apple MacBookPro8,2 */
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{ USB_DEVICE(0x05ac, 0x821a) },
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/* Apple MacMini5,1 */
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{ USB_DEVICE(0x05ac, 0x8281) },
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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) },
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/* Broadcom BCM20702A0 */
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{ USB_DEVICE(0x0489, 0xe042) },
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{ USB_DEVICE(0x0a5c, 0x21e3) },
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{ USB_DEVICE(0x0a5c, 0x21e6) },
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{ USB_DEVICE(0x0a5c, 0x21e8) },
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{ USB_DEVICE(0x0a5c, 0x21f3) },
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{ USB_DEVICE(0x413c, 0x8197) },
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/* Foxconn - Hon Hai */
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{ USB_DEVICE(0x0489, 0xe033) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, btusb_table);
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static struct usb_device_id blacklist_table[] = {
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/* CSR BlueCore devices */
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{ USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
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/* Broadcom BCM2033 without firmware */
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{ USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
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/* Atheros 3011 with sflash firmware */
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{ USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
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{ USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
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{ USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
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{ USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
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/* Atheros AR9285 Malbec with sflash firmware */
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{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
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/* Atheros 3012 with sflash firmware */
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{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
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{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
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{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
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{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
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{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
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{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
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/* Atheros AR5BBU12 with sflash firmware */
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{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
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/* Atheros AR5BBU12 with sflash firmware */
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{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
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/* Broadcom BCM2035 */
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{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
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/* Broadcom BCM2045 */
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{ USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* IBM/Lenovo ThinkPad with Broadcom chip */
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{ USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
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{ USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* HP laptop with Broadcom chip */
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{ USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* Dell laptop with Broadcom chip */
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{ USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* Dell Wireless 370 and 410 devices */
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{ USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
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{ USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* Belkin F8T012 and F8T013 devices */
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{ USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
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{ USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* Asus WL-BTD202 device */
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{ USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* Kensington Bluetooth USB adapter */
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{ USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
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/* RTX Telecom based adapters with buggy SCO support */
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{ USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
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{ USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
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/* CONWISE Technology based adapters with buggy SCO support */
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{ USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
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/* Digianswer devices */
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{ USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
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{ USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
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/* CSR BlueCore Bluetooth Sniffer */
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{ USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
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/* Frontline ComProbe Bluetooth Sniffer */
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{ USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
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{ } /* Terminating entry */
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};
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#define BTUSB_MAX_ISOC_FRAMES 10
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#define BTUSB_INTR_RUNNING 0
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#define BTUSB_BULK_RUNNING 1
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#define BTUSB_ISOC_RUNNING 2
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#define BTUSB_SUSPENDING 3
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#define BTUSB_DID_ISO_RESUME 4
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struct btusb_data {
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struct hci_dev *hdev;
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struct usb_device *udev;
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struct usb_interface *intf;
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struct usb_interface *isoc;
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spinlock_t lock;
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unsigned long flags;
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struct work_struct work;
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struct work_struct waker;
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struct usb_anchor tx_anchor;
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struct usb_anchor intr_anchor;
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struct usb_anchor bulk_anchor;
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struct usb_anchor isoc_anchor;
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struct usb_anchor deferred;
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int tx_in_flight;
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spinlock_t txlock;
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struct usb_endpoint_descriptor *intr_ep;
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struct usb_endpoint_descriptor *bulk_tx_ep;
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struct usb_endpoint_descriptor *bulk_rx_ep;
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struct usb_endpoint_descriptor *isoc_tx_ep;
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struct usb_endpoint_descriptor *isoc_rx_ep;
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__u8 cmdreq_type;
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unsigned int sco_num;
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int isoc_altsetting;
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int suspend_count;
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};
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static int inc_tx(struct btusb_data *data)
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{
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unsigned long flags;
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int rv;
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spin_lock_irqsave(&data->txlock, flags);
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rv = test_bit(BTUSB_SUSPENDING, &data->flags);
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if (!rv)
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data->tx_in_flight++;
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spin_unlock_irqrestore(&data->txlock, flags);
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return rv;
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}
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static void btusb_intr_complete(struct urb *urb)
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{
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struct hci_dev *hdev = urb->context;
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struct btusb_data *data = hci_get_drvdata(hdev);
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int err;
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BT_DBG("%s urb %p status %d count %d", hdev->name,
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urb, urb->status, urb->actual_length);
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if (!test_bit(HCI_RUNNING, &hdev->flags))
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return;
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if (urb->status == 0) {
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hdev->stat.byte_rx += urb->actual_length;
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if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
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urb->transfer_buffer,
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urb->actual_length) < 0) {
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BT_ERR("%s corrupted event packet", hdev->name);
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hdev->stat.err_rx++;
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}
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}
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if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
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return;
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usb_mark_last_busy(data->udev);
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usb_anchor_urb(urb, &data->intr_anchor);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err < 0) {
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/* -EPERM: urb is being killed;
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* -ENODEV: device got disconnected */
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if (err != -EPERM && err != -ENODEV)
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BT_ERR("%s urb %p failed to resubmit (%d)",
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hdev->name, urb, -err);
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usb_unanchor_urb(urb);
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}
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}
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static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
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{
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struct btusb_data *data = hci_get_drvdata(hdev);
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struct urb *urb;
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unsigned char *buf;
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unsigned int pipe;
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int err, size;
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BT_DBG("%s", hdev->name);
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if (!data->intr_ep)
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return -ENODEV;
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urb = usb_alloc_urb(0, mem_flags);
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if (!urb)
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return -ENOMEM;
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size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
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buf = kmalloc(size, mem_flags);
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if (!buf) {
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usb_free_urb(urb);
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return -ENOMEM;
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}
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pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
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usb_fill_int_urb(urb, data->udev, pipe, buf, size,
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btusb_intr_complete, hdev,
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data->intr_ep->bInterval);
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urb->transfer_flags |= URB_FREE_BUFFER;
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usb_anchor_urb(urb, &data->intr_anchor);
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err = usb_submit_urb(urb, mem_flags);
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if (err < 0) {
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if (err != -EPERM && err != -ENODEV)
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BT_ERR("%s urb %p submission failed (%d)",
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hdev->name, urb, -err);
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usb_unanchor_urb(urb);
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}
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usb_free_urb(urb);
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return err;
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}
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static void btusb_bulk_complete(struct urb *urb)
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{
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struct hci_dev *hdev = urb->context;
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struct btusb_data *data = hci_get_drvdata(hdev);
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int err;
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BT_DBG("%s urb %p status %d count %d", hdev->name,
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urb, urb->status, urb->actual_length);
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if (!test_bit(HCI_RUNNING, &hdev->flags))
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return;
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if (urb->status == 0) {
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hdev->stat.byte_rx += urb->actual_length;
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if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
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urb->transfer_buffer,
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urb->actual_length) < 0) {
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BT_ERR("%s corrupted ACL packet", hdev->name);
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hdev->stat.err_rx++;
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}
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}
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if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
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return;
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usb_anchor_urb(urb, &data->bulk_anchor);
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usb_mark_last_busy(data->udev);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err < 0) {
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/* -EPERM: urb is being killed;
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* -ENODEV: device got disconnected */
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if (err != -EPERM && err != -ENODEV)
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BT_ERR("%s urb %p failed to resubmit (%d)",
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hdev->name, urb, -err);
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usb_unanchor_urb(urb);
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}
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}
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static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
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{
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struct btusb_data *data = hci_get_drvdata(hdev);
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struct urb *urb;
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unsigned char *buf;
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unsigned int pipe;
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int err, size = HCI_MAX_FRAME_SIZE;
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BT_DBG("%s", hdev->name);
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if (!data->bulk_rx_ep)
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return -ENODEV;
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urb = usb_alloc_urb(0, mem_flags);
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if (!urb)
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return -ENOMEM;
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buf = kmalloc(size, mem_flags);
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if (!buf) {
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usb_free_urb(urb);
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return -ENOMEM;
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}
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pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
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usb_fill_bulk_urb(urb, data->udev, pipe,
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buf, size, btusb_bulk_complete, hdev);
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urb->transfer_flags |= URB_FREE_BUFFER;
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usb_mark_last_busy(data->udev);
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usb_anchor_urb(urb, &data->bulk_anchor);
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err = usb_submit_urb(urb, mem_flags);
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if (err < 0) {
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if (err != -EPERM && err != -ENODEV)
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BT_ERR("%s urb %p submission failed (%d)",
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hdev->name, urb, -err);
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usb_unanchor_urb(urb);
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}
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usb_free_urb(urb);
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return err;
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}
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static void btusb_isoc_complete(struct urb *urb)
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{
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struct hci_dev *hdev = urb->context;
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struct btusb_data *data = hci_get_drvdata(hdev);
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int i, err;
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BT_DBG("%s urb %p status %d count %d", hdev->name,
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urb, urb->status, urb->actual_length);
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if (!test_bit(HCI_RUNNING, &hdev->flags))
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return;
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if (urb->status == 0) {
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for (i = 0; i < urb->number_of_packets; i++) {
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unsigned int offset = urb->iso_frame_desc[i].offset;
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unsigned int length = urb->iso_frame_desc[i].actual_length;
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if (urb->iso_frame_desc[i].status)
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continue;
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hdev->stat.byte_rx += length;
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if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
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urb->transfer_buffer + offset,
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length) < 0) {
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BT_ERR("%s corrupted SCO packet", hdev->name);
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hdev->stat.err_rx++;
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}
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}
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}
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if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
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return;
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usb_anchor_urb(urb, &data->isoc_anchor);
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (err < 0) {
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/* -EPERM: urb is being killed;
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* -ENODEV: device got disconnected */
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if (err != -EPERM && err != -ENODEV)
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BT_ERR("%s urb %p failed to resubmit (%d)",
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hdev->name, urb, -err);
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usb_unanchor_urb(urb);
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}
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}
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static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
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{
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int i, offset = 0;
|
|
|
|
BT_DBG("len %d mtu %d", len, mtu);
|
|
|
|
for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
|
|
i++, offset += mtu, len -= mtu) {
|
|
urb->iso_frame_desc[i].offset = offset;
|
|
urb->iso_frame_desc[i].length = mtu;
|
|
}
|
|
|
|
if (len && i < BTUSB_MAX_ISOC_FRAMES) {
|
|
urb->iso_frame_desc[i].offset = offset;
|
|
urb->iso_frame_desc[i].length = len;
|
|
i++;
|
|
}
|
|
|
|
urb->number_of_packets = i;
|
|
}
|
|
|
|
static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
|
|
{
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
struct urb *urb;
|
|
unsigned char *buf;
|
|
unsigned int pipe;
|
|
int err, size;
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
if (!data->isoc_rx_ep)
|
|
return -ENODEV;
|
|
|
|
urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
|
|
size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
|
|
BTUSB_MAX_ISOC_FRAMES;
|
|
|
|
buf = kmalloc(size, mem_flags);
|
|
if (!buf) {
|
|
usb_free_urb(urb);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
|
|
|
|
usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
|
|
hdev, data->isoc_rx_ep->bInterval);
|
|
|
|
urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
|
|
|
|
__fill_isoc_descriptor(urb, size,
|
|
le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
|
|
|
|
usb_anchor_urb(urb, &data->isoc_anchor);
|
|
|
|
err = usb_submit_urb(urb, mem_flags);
|
|
if (err < 0) {
|
|
if (err != -EPERM && err != -ENODEV)
|
|
BT_ERR("%s urb %p submission failed (%d)",
|
|
hdev->name, urb, -err);
|
|
usb_unanchor_urb(urb);
|
|
}
|
|
|
|
usb_free_urb(urb);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void btusb_tx_complete(struct urb *urb)
|
|
{
|
|
struct sk_buff *skb = urb->context;
|
|
struct hci_dev *hdev = (struct hci_dev *) skb->dev;
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
|
|
BT_DBG("%s urb %p status %d count %d", hdev->name,
|
|
urb, urb->status, urb->actual_length);
|
|
|
|
if (!test_bit(HCI_RUNNING, &hdev->flags))
|
|
goto done;
|
|
|
|
if (!urb->status)
|
|
hdev->stat.byte_tx += urb->transfer_buffer_length;
|
|
else
|
|
hdev->stat.err_tx++;
|
|
|
|
done:
|
|
spin_lock(&data->txlock);
|
|
data->tx_in_flight--;
|
|
spin_unlock(&data->txlock);
|
|
|
|
kfree(urb->setup_packet);
|
|
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
static void btusb_isoc_tx_complete(struct urb *urb)
|
|
{
|
|
struct sk_buff *skb = urb->context;
|
|
struct hci_dev *hdev = (struct hci_dev *) skb->dev;
|
|
|
|
BT_DBG("%s urb %p status %d count %d", hdev->name,
|
|
urb, urb->status, urb->actual_length);
|
|
|
|
if (!test_bit(HCI_RUNNING, &hdev->flags))
|
|
goto done;
|
|
|
|
if (!urb->status)
|
|
hdev->stat.byte_tx += urb->transfer_buffer_length;
|
|
else
|
|
hdev->stat.err_tx++;
|
|
|
|
done:
|
|
kfree(urb->setup_packet);
|
|
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
static int btusb_open(struct hci_dev *hdev)
|
|
{
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
int err;
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
err = usb_autopm_get_interface(data->intf);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
data->intf->needs_remote_wakeup = 1;
|
|
|
|
if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
|
|
goto done;
|
|
|
|
if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
|
|
goto done;
|
|
|
|
err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
|
|
if (err < 0)
|
|
goto failed;
|
|
|
|
err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
|
|
if (err < 0) {
|
|
usb_kill_anchored_urbs(&data->intr_anchor);
|
|
goto failed;
|
|
}
|
|
|
|
set_bit(BTUSB_BULK_RUNNING, &data->flags);
|
|
btusb_submit_bulk_urb(hdev, GFP_KERNEL);
|
|
|
|
done:
|
|
usb_autopm_put_interface(data->intf);
|
|
return 0;
|
|
|
|
failed:
|
|
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
|
|
clear_bit(HCI_RUNNING, &hdev->flags);
|
|
usb_autopm_put_interface(data->intf);
|
|
return err;
|
|
}
|
|
|
|
static void btusb_stop_traffic(struct btusb_data *data)
|
|
{
|
|
usb_kill_anchored_urbs(&data->intr_anchor);
|
|
usb_kill_anchored_urbs(&data->bulk_anchor);
|
|
usb_kill_anchored_urbs(&data->isoc_anchor);
|
|
}
|
|
|
|
static int btusb_close(struct hci_dev *hdev)
|
|
{
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
int err;
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
|
|
return 0;
|
|
|
|
cancel_work_sync(&data->work);
|
|
cancel_work_sync(&data->waker);
|
|
|
|
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
|
|
clear_bit(BTUSB_BULK_RUNNING, &data->flags);
|
|
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
|
|
|
|
btusb_stop_traffic(data);
|
|
err = usb_autopm_get_interface(data->intf);
|
|
if (err < 0)
|
|
goto failed;
|
|
|
|
data->intf->needs_remote_wakeup = 0;
|
|
usb_autopm_put_interface(data->intf);
|
|
|
|
failed:
|
|
usb_scuttle_anchored_urbs(&data->deferred);
|
|
return 0;
|
|
}
|
|
|
|
static int btusb_flush(struct hci_dev *hdev)
|
|
{
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
usb_kill_anchored_urbs(&data->tx_anchor);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int btusb_send_frame(struct sk_buff *skb)
|
|
{
|
|
struct hci_dev *hdev = (struct hci_dev *) skb->dev;
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
struct usb_ctrlrequest *dr;
|
|
struct urb *urb;
|
|
unsigned int pipe;
|
|
int err;
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
if (!test_bit(HCI_RUNNING, &hdev->flags))
|
|
return -EBUSY;
|
|
|
|
switch (bt_cb(skb)->pkt_type) {
|
|
case HCI_COMMAND_PKT:
|
|
urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
|
|
dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
|
|
if (!dr) {
|
|
usb_free_urb(urb);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dr->bRequestType = data->cmdreq_type;
|
|
dr->bRequest = 0;
|
|
dr->wIndex = 0;
|
|
dr->wValue = 0;
|
|
dr->wLength = __cpu_to_le16(skb->len);
|
|
|
|
pipe = usb_sndctrlpipe(data->udev, 0x00);
|
|
|
|
usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
|
|
skb->data, skb->len, btusb_tx_complete, skb);
|
|
|
|
hdev->stat.cmd_tx++;
|
|
break;
|
|
|
|
case HCI_ACLDATA_PKT:
|
|
if (!data->bulk_tx_ep)
|
|
return -ENODEV;
|
|
|
|
urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
|
|
pipe = usb_sndbulkpipe(data->udev,
|
|
data->bulk_tx_ep->bEndpointAddress);
|
|
|
|
usb_fill_bulk_urb(urb, data->udev, pipe,
|
|
skb->data, skb->len, btusb_tx_complete, skb);
|
|
|
|
hdev->stat.acl_tx++;
|
|
break;
|
|
|
|
case HCI_SCODATA_PKT:
|
|
if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
|
|
return -ENODEV;
|
|
|
|
urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
|
|
pipe = usb_sndisocpipe(data->udev,
|
|
data->isoc_tx_ep->bEndpointAddress);
|
|
|
|
usb_fill_int_urb(urb, data->udev, pipe,
|
|
skb->data, skb->len, btusb_isoc_tx_complete,
|
|
skb, data->isoc_tx_ep->bInterval);
|
|
|
|
urb->transfer_flags = URB_ISO_ASAP;
|
|
|
|
__fill_isoc_descriptor(urb, skb->len,
|
|
le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
|
|
|
|
hdev->stat.sco_tx++;
|
|
goto skip_waking;
|
|
|
|
default:
|
|
return -EILSEQ;
|
|
}
|
|
|
|
err = inc_tx(data);
|
|
if (err) {
|
|
usb_anchor_urb(urb, &data->deferred);
|
|
schedule_work(&data->waker);
|
|
err = 0;
|
|
goto done;
|
|
}
|
|
|
|
skip_waking:
|
|
usb_anchor_urb(urb, &data->tx_anchor);
|
|
|
|
err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (err < 0) {
|
|
if (err != -EPERM && err != -ENODEV)
|
|
BT_ERR("%s urb %p submission failed (%d)",
|
|
hdev->name, urb, -err);
|
|
kfree(urb->setup_packet);
|
|
usb_unanchor_urb(urb);
|
|
} else {
|
|
usb_mark_last_busy(data->udev);
|
|
}
|
|
|
|
done:
|
|
usb_free_urb(urb);
|
|
return err;
|
|
}
|
|
|
|
static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
|
|
{
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
|
|
BT_DBG("%s evt %d", hdev->name, evt);
|
|
|
|
if (hdev->conn_hash.sco_num != data->sco_num) {
|
|
data->sco_num = hdev->conn_hash.sco_num;
|
|
schedule_work(&data->work);
|
|
}
|
|
}
|
|
|
|
static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
|
|
{
|
|
struct btusb_data *data = hci_get_drvdata(hdev);
|
|
struct usb_interface *intf = data->isoc;
|
|
struct usb_endpoint_descriptor *ep_desc;
|
|
int i, err;
|
|
|
|
if (!data->isoc)
|
|
return -ENODEV;
|
|
|
|
err = usb_set_interface(data->udev, 1, altsetting);
|
|
if (err < 0) {
|
|
BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
|
|
return err;
|
|
}
|
|
|
|
data->isoc_altsetting = altsetting;
|
|
|
|
data->isoc_tx_ep = NULL;
|
|
data->isoc_rx_ep = NULL;
|
|
|
|
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
|
|
ep_desc = &intf->cur_altsetting->endpoint[i].desc;
|
|
|
|
if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
|
|
data->isoc_tx_ep = ep_desc;
|
|
continue;
|
|
}
|
|
|
|
if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
|
|
data->isoc_rx_ep = ep_desc;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
|
|
BT_ERR("%s invalid SCO descriptors", hdev->name);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void btusb_work(struct work_struct *work)
|
|
{
|
|
struct btusb_data *data = container_of(work, struct btusb_data, work);
|
|
struct hci_dev *hdev = data->hdev;
|
|
int new_alts;
|
|
int err;
|
|
|
|
if (hdev->conn_hash.sco_num > 0) {
|
|
if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
|
|
err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
|
|
if (err < 0) {
|
|
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
|
|
usb_kill_anchored_urbs(&data->isoc_anchor);
|
|
return;
|
|
}
|
|
|
|
set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
|
|
}
|
|
|
|
if (hdev->voice_setting & 0x0020) {
|
|
static const int alts[3] = { 2, 4, 5 };
|
|
new_alts = alts[hdev->conn_hash.sco_num - 1];
|
|
} else {
|
|
new_alts = hdev->conn_hash.sco_num;
|
|
}
|
|
|
|
if (data->isoc_altsetting != new_alts) {
|
|
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
|
|
usb_kill_anchored_urbs(&data->isoc_anchor);
|
|
|
|
if (__set_isoc_interface(hdev, new_alts) < 0)
|
|
return;
|
|
}
|
|
|
|
if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
|
|
if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
|
|
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
|
|
else
|
|
btusb_submit_isoc_urb(hdev, GFP_KERNEL);
|
|
}
|
|
} else {
|
|
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
|
|
usb_kill_anchored_urbs(&data->isoc_anchor);
|
|
|
|
__set_isoc_interface(hdev, 0);
|
|
if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
|
|
usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
|
|
}
|
|
}
|
|
|
|
static void btusb_waker(struct work_struct *work)
|
|
{
|
|
struct btusb_data *data = container_of(work, struct btusb_data, waker);
|
|
int err;
|
|
|
|
err = usb_autopm_get_interface(data->intf);
|
|
if (err < 0)
|
|
return;
|
|
|
|
usb_autopm_put_interface(data->intf);
|
|
}
|
|
|
|
static int btusb_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_endpoint_descriptor *ep_desc;
|
|
struct btusb_data *data;
|
|
struct hci_dev *hdev;
|
|
int i, err;
|
|
|
|
BT_DBG("intf %p id %p", intf, id);
|
|
|
|
/* interface numbers are hardcoded in the spec */
|
|
if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
|
|
return -ENODEV;
|
|
|
|
if (!id->driver_info) {
|
|
const struct usb_device_id *match;
|
|
match = usb_match_id(intf, blacklist_table);
|
|
if (match)
|
|
id = match;
|
|
}
|
|
|
|
if (id->driver_info == BTUSB_IGNORE)
|
|
return -ENODEV;
|
|
|
|
if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
|
|
return -ENODEV;
|
|
|
|
if (ignore_csr && id->driver_info & BTUSB_CSR)
|
|
return -ENODEV;
|
|
|
|
if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
|
|
return -ENODEV;
|
|
|
|
if (id->driver_info & BTUSB_ATH3012) {
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
|
|
/* Old firmware would otherwise let ath3k driver load
|
|
* patch and sysconfig files */
|
|
if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
|
|
return -ENODEV;
|
|
}
|
|
|
|
data = kzalloc(sizeof(*data), GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
|
|
ep_desc = &intf->cur_altsetting->endpoint[i].desc;
|
|
|
|
if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
|
|
data->intr_ep = ep_desc;
|
|
continue;
|
|
}
|
|
|
|
if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
|
|
data->bulk_tx_ep = ep_desc;
|
|
continue;
|
|
}
|
|
|
|
if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
|
|
data->bulk_rx_ep = ep_desc;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
|
|
kfree(data);
|
|
return -ENODEV;
|
|
}
|
|
|
|
data->cmdreq_type = USB_TYPE_CLASS;
|
|
|
|
data->udev = interface_to_usbdev(intf);
|
|
data->intf = intf;
|
|
|
|
spin_lock_init(&data->lock);
|
|
|
|
INIT_WORK(&data->work, btusb_work);
|
|
INIT_WORK(&data->waker, btusb_waker);
|
|
spin_lock_init(&data->txlock);
|
|
|
|
init_usb_anchor(&data->tx_anchor);
|
|
init_usb_anchor(&data->intr_anchor);
|
|
init_usb_anchor(&data->bulk_anchor);
|
|
init_usb_anchor(&data->isoc_anchor);
|
|
init_usb_anchor(&data->deferred);
|
|
|
|
hdev = hci_alloc_dev();
|
|
if (!hdev) {
|
|
kfree(data);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
hdev->bus = HCI_USB;
|
|
hci_set_drvdata(hdev, data);
|
|
|
|
data->hdev = hdev;
|
|
|
|
SET_HCIDEV_DEV(hdev, &intf->dev);
|
|
|
|
hdev->open = btusb_open;
|
|
hdev->close = btusb_close;
|
|
hdev->flush = btusb_flush;
|
|
hdev->send = btusb_send_frame;
|
|
hdev->notify = btusb_notify;
|
|
|
|
/* Interface numbers are hardcoded in the specification */
|
|
data->isoc = usb_ifnum_to_if(data->udev, 1);
|
|
|
|
if (!reset)
|
|
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
|
|
|
|
if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
|
|
if (!disable_scofix)
|
|
set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
|
|
}
|
|
|
|
if (id->driver_info & BTUSB_BROKEN_ISOC)
|
|
data->isoc = NULL;
|
|
|
|
if (id->driver_info & BTUSB_DIGIANSWER) {
|
|
data->cmdreq_type = USB_TYPE_VENDOR;
|
|
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
|
|
}
|
|
|
|
if (id->driver_info & BTUSB_CSR) {
|
|
struct usb_device *udev = data->udev;
|
|
|
|
/* Old firmware would otherwise execute USB reset */
|
|
if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
|
|
set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
|
|
}
|
|
|
|
if (id->driver_info & BTUSB_SNIFFER) {
|
|
struct usb_device *udev = data->udev;
|
|
|
|
/* New sniffer firmware has crippled HCI interface */
|
|
if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
|
|
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
|
|
|
|
data->isoc = NULL;
|
|
}
|
|
|
|
if (id->driver_info & BTUSB_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 (data->isoc) {
|
|
err = usb_driver_claim_interface(&btusb_driver,
|
|
data->isoc, data);
|
|
if (err < 0) {
|
|
hci_free_dev(hdev);
|
|
kfree(data);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
err = hci_register_dev(hdev);
|
|
if (err < 0) {
|
|
hci_free_dev(hdev);
|
|
kfree(data);
|
|
return err;
|
|
}
|
|
|
|
usb_set_intfdata(intf, data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void btusb_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct btusb_data *data = usb_get_intfdata(intf);
|
|
struct hci_dev *hdev;
|
|
|
|
BT_DBG("intf %p", intf);
|
|
|
|
if (!data)
|
|
return;
|
|
|
|
hdev = data->hdev;
|
|
usb_set_intfdata(data->intf, NULL);
|
|
|
|
if (data->isoc)
|
|
usb_set_intfdata(data->isoc, NULL);
|
|
|
|
hci_unregister_dev(hdev);
|
|
|
|
if (intf == data->isoc)
|
|
usb_driver_release_interface(&btusb_driver, data->intf);
|
|
else if (data->isoc)
|
|
usb_driver_release_interface(&btusb_driver, data->isoc);
|
|
|
|
hci_free_dev(hdev);
|
|
kfree(data);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
struct btusb_data *data = usb_get_intfdata(intf);
|
|
|
|
BT_DBG("intf %p", intf);
|
|
|
|
if (data->suspend_count++)
|
|
return 0;
|
|
|
|
spin_lock_irq(&data->txlock);
|
|
if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
|
|
set_bit(BTUSB_SUSPENDING, &data->flags);
|
|
spin_unlock_irq(&data->txlock);
|
|
} else {
|
|
spin_unlock_irq(&data->txlock);
|
|
data->suspend_count--;
|
|
return -EBUSY;
|
|
}
|
|
|
|
cancel_work_sync(&data->work);
|
|
|
|
btusb_stop_traffic(data);
|
|
usb_kill_anchored_urbs(&data->tx_anchor);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void play_deferred(struct btusb_data *data)
|
|
{
|
|
struct urb *urb;
|
|
int err;
|
|
|
|
while ((urb = usb_get_from_anchor(&data->deferred))) {
|
|
err = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (err < 0)
|
|
break;
|
|
|
|
data->tx_in_flight++;
|
|
}
|
|
usb_scuttle_anchored_urbs(&data->deferred);
|
|
}
|
|
|
|
static int btusb_resume(struct usb_interface *intf)
|
|
{
|
|
struct btusb_data *data = usb_get_intfdata(intf);
|
|
struct hci_dev *hdev = data->hdev;
|
|
int err = 0;
|
|
|
|
BT_DBG("intf %p", intf);
|
|
|
|
if (--data->suspend_count)
|
|
return 0;
|
|
|
|
if (!test_bit(HCI_RUNNING, &hdev->flags))
|
|
goto done;
|
|
|
|
if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
|
|
err = btusb_submit_intr_urb(hdev, GFP_NOIO);
|
|
if (err < 0) {
|
|
clear_bit(BTUSB_INTR_RUNNING, &data->flags);
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
|
|
err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
|
|
if (err < 0) {
|
|
clear_bit(BTUSB_BULK_RUNNING, &data->flags);
|
|
goto failed;
|
|
}
|
|
|
|
btusb_submit_bulk_urb(hdev, GFP_NOIO);
|
|
}
|
|
|
|
if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
|
|
if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
|
|
clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
|
|
else
|
|
btusb_submit_isoc_urb(hdev, GFP_NOIO);
|
|
}
|
|
|
|
spin_lock_irq(&data->txlock);
|
|
play_deferred(data);
|
|
clear_bit(BTUSB_SUSPENDING, &data->flags);
|
|
spin_unlock_irq(&data->txlock);
|
|
schedule_work(&data->work);
|
|
|
|
return 0;
|
|
|
|
failed:
|
|
usb_scuttle_anchored_urbs(&data->deferred);
|
|
done:
|
|
spin_lock_irq(&data->txlock);
|
|
clear_bit(BTUSB_SUSPENDING, &data->flags);
|
|
spin_unlock_irq(&data->txlock);
|
|
|
|
return err;
|
|
}
|
|
#endif
|
|
|
|
static struct usb_driver btusb_driver = {
|
|
.name = "btusb",
|
|
.probe = btusb_probe,
|
|
.disconnect = btusb_disconnect,
|
|
#ifdef CONFIG_PM
|
|
.suspend = btusb_suspend,
|
|
.resume = btusb_resume,
|
|
#endif
|
|
.id_table = btusb_table,
|
|
.supports_autosuspend = 1,
|
|
.disable_hub_initiated_lpm = 1,
|
|
};
|
|
|
|
module_usb_driver(btusb_driver);
|
|
|
|
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");
|
|
|
|
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
|
|
MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
|
|
MODULE_VERSION(VERSION);
|
|
MODULE_LICENSE("GPL");
|