drivers/bluetooth/btusb.c

   1 /*
   2  *
   3  *  Generic Bluetooth USB driver
   4  *
   5  *  Copyright (C) 2005-2008  Marcel Holtmann <marcel@holtmann.org>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/module.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/errno.h>
  31 #include <linux/skbuff.h>
  32
  33 #include <linux/usb.h>
  34
  35 #include <net/bluetooth/bluetooth.h>
  36 #include <net/bluetooth/hci_core.h>
  37
  38 #define VERSION "0.6"
  39
  40 static int ignore_dga;
  41 static int ignore_csr;
  42 static int ignore_sniffer;
  43 static int disable_scofix;
  44 static int force_scofix;
  45
  46 static int reset = 1;
  47
  48 static struct usb_driver btusb_driver;
  49
  50 #define BTUSB_IGNORE            0x01
  51 #define BTUSB_DIGIANSWER        0x02
  52 #define BTUSB_CSR               0x04
  53 #define BTUSB_SNIFFER           0x08
  54 #define BTUSB_BCM92035          0x10
  55 #define BTUSB_BROKEN_ISOC       0x20
  56 #define BTUSB_WRONG_SCO_MTU     0x40
  57 #define BTUSB_ATH3012           0x80
  58
  59 static struct usb_device_id btusb_table[] = {
  60         /* Generic Bluetooth USB device */
  61         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  62
  63         /* Apple-specific (Broadcom) devices */
  64         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
  65
  66         /* MediaTek MT76x0E */
  67         { USB_DEVICE(0x0e8d, 0x763f) },
  68
  69         /* Broadcom SoftSailing reporting vendor specific */
  70         { USB_DEVICE(0x0a5c, 0x21e1) },
  71
  72         /* Apple MacBookPro 7,1 */
  73         { USB_DEVICE(0x05ac, 0x8213) },
  74
  75         /* Apple iMac11,1 */
  76         { USB_DEVICE(0x05ac, 0x8215) },
  77
  78         /* Apple MacBookPro6,2 */
  79         { USB_DEVICE(0x05ac, 0x8218) },
  80
  81         /* Apple MacBookAir3,1, MacBookAir3,2 */
  82         { USB_DEVICE(0x05ac, 0x821b) },
  83
  84         /* Apple MacBookAir4,1 */
  85         { USB_DEVICE(0x05ac, 0x821f) },
  86
  87         /* Apple MacBookPro8,2 */
  88         { USB_DEVICE(0x05ac, 0x821a) },
  89
  90         /* Apple MacMini5,1 */
  91         { USB_DEVICE(0x05ac, 0x8281) },
  92
  93         /* AVM BlueFRITZ! USB v2.0 */
  94         { USB_DEVICE(0x057c, 0x3800) },
  95
  96         /* Bluetooth Ultraport Module from IBM */
  97         { USB_DEVICE(0x04bf, 0x030a) },
  98
  99         /* ALPS Modules with non-standard id */
 100         { USB_DEVICE(0x044e, 0x3001) },
 101         { USB_DEVICE(0x044e, 0x3002) },
 102
 103         /* Ericsson with non-standard id */
 104         { USB_DEVICE(0x0bdb, 0x1002) },
 105
 106         /* Canyon CN-BTU1 with HID interfaces */
 107         { USB_DEVICE(0x0c10, 0x0000) },
 108
 109         /* Broadcom BCM20702A0 */
 110         { USB_DEVICE(0x0b05, 0x17b5) },
 111         { USB_DEVICE(0x04ca, 0x2003) },
 112         { USB_DEVICE(0x0489, 0xe042) },
 113         { USB_DEVICE(0x413c, 0x8197) },
 114
 115         /* Foxconn - Hon Hai */
 116         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 117
 118         /*Broadcom devices with vendor specific id */
 119         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 120
 121         { }     /* Terminating entry */
 122 };
 123
 124 MODULE_DEVICE_TABLE(usb, btusb_table);
 125
 126 static struct usb_device_id blacklist_table[] = {
 127         /* CSR BlueCore devices */
 128         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 129
 130         /* Broadcom BCM2033 without firmware */
 131         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 132
 133         /* Atheros 3011 with sflash firmware */
 134         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 135         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 136         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 137         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 138         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 139         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 140
 141         /* Atheros AR9285 Malbec with sflash firmware */
 142         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 143
 144         /* Atheros 3012 with sflash firmware */
 145         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 163
 164         /* Atheros AR5BBU12 with sflash firmware */
 165         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 166
 167         /* Atheros AR5BBU12 with sflash firmware */
 168         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 170
 171         /* Broadcom BCM2035 */
 172         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 173         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 174         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 175
 176         /* Broadcom BCM2045 */
 177         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 178         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 179
 180         /* IBM/Lenovo ThinkPad with Broadcom chip */
 181         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 182         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 183
 184         /* HP laptop with Broadcom chip */
 185         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 186
 187         /* Dell laptop with Broadcom chip */
 188         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 189
 190         /* Dell Wireless 370 and 410 devices */
 191         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 192         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 193
 194         /* Belkin F8T012 and F8T013 devices */
 195         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 196         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 197
 198         /* Asus WL-BTD202 device */
 199         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 200
 201         /* Kensington Bluetooth USB adapter */
 202         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 203
 204         /* RTX Telecom based adapters with buggy SCO support */
 205         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 206         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 207
 208         /* CONWISE Technology based adapters with buggy SCO support */
 209         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 210
 211         /* Digianswer devices */
 212         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 213         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 214
 215         /* CSR BlueCore Bluetooth Sniffer */
 216         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 217
 218         /* Frontline ComProbe Bluetooth Sniffer */
 219         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 220
 221         { }     /* Terminating entry */
 222 };
 223
 224 #define BTUSB_MAX_ISOC_FRAMES   10
 225
 226 #define BTUSB_INTR_RUNNING      0
 227 #define BTUSB_BULK_RUNNING      1
 228 #define BTUSB_ISOC_RUNNING      2
 229 #define BTUSB_SUSPENDING        3
 230 #define BTUSB_DID_ISO_RESUME    4
 231
 232 struct btusb_data {
 233         struct hci_dev       *hdev;
 234         struct usb_device    *udev;
 235         struct usb_interface *intf;
 236         struct usb_interface *isoc;
 237
 238         spinlock_t lock;
 239
 240         unsigned long flags;
 241
 242         struct work_struct work;
 243         struct work_struct waker;
 244
 245         struct usb_anchor tx_anchor;
 246         struct usb_anchor intr_anchor;
 247         struct usb_anchor bulk_anchor;
 248         struct usb_anchor isoc_anchor;
 249         struct usb_anchor deferred;
 250         int tx_in_flight;
 251         spinlock_t txlock;
 252
 253         struct usb_endpoint_descriptor *intr_ep;
 254         struct usb_endpoint_descriptor *bulk_tx_ep;
 255         struct usb_endpoint_descriptor *bulk_rx_ep;
 256         struct usb_endpoint_descriptor *isoc_tx_ep;
 257         struct usb_endpoint_descriptor *isoc_rx_ep;
 258
 259         __u8 cmdreq_type;
 260
 261         unsigned int sco_num;
 262         int isoc_altsetting;
 263         int suspend_count;
 264 };
 265
 266 static int inc_tx(struct btusb_data *data)
 267 {
 268         unsigned long flags;
 269         int rv;
 270
 271         spin_lock_irqsave(&data->txlock, flags);
 272         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 273         if (!rv)
 274                 data->tx_in_flight++;
 275         spin_unlock_irqrestore(&data->txlock, flags);
 276
 277         return rv;
 278 }
 279
 280 static void btusb_intr_complete(struct urb *urb)
 281 {
 282         struct hci_dev *hdev = urb->context;
 283         struct btusb_data *data = hdev->driver_data;
 284         int err;
 285
 286         BT_DBG("%s urb %p status %d count %d", hdev->name,
 287                                         urb, urb->status, urb->actual_length);
 288
 289         if (!test_bit(HCI_RUNNING, &hdev->flags))
 290                 return;
 291
 292         if (urb->status == 0) {
 293                 hdev->stat.byte_rx += urb->actual_length;
 294
 295                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 296                                                 urb->transfer_buffer,
 297                                                 urb->actual_length) < 0) {
 298                         BT_ERR("%s corrupted event packet", hdev->name);
 299                         hdev->stat.err_rx++;
 300                 }
 301         }
 302
 303         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 304                 return;
 305
 306         usb_mark_last_busy(data->udev);
 307         usb_anchor_urb(urb, &data->intr_anchor);
 308
 309         err = usb_submit_urb(urb, GFP_ATOMIC);
 310         if (err < 0) {
 311                 /* -EPERM: urb is being killed;
 312                  * -ENODEV: device got disconnected */
 313                 if (err != -EPERM && err != -ENODEV)
 314                         BT_ERR("%s urb %p failed to resubmit (%d)",
 315                                                 hdev->name, urb, -err);
 316                 usb_unanchor_urb(urb);
 317         }
 318 }
 319
 320 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 321 {
 322         struct btusb_data *data = hdev->driver_data;
 323         struct urb *urb;
 324         unsigned char *buf;
 325         unsigned int pipe;
 326         int err, size;
 327
 328         BT_DBG("%s", hdev->name);
 329
 330         if (!data->intr_ep)
 331                 return -ENODEV;
 332
 333         urb = usb_alloc_urb(0, mem_flags);
 334         if (!urb)
 335                 return -ENOMEM;
 336
 337         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 338
 339         buf = kmalloc(size, mem_flags);
 340         if (!buf) {
 341                 usb_free_urb(urb);
 342                 return -ENOMEM;
 343         }
 344
 345         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 346
 347         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 348                                                 btusb_intr_complete, hdev,
 349                                                 data->intr_ep->bInterval);
 350
 351         urb->transfer_flags |= URB_FREE_BUFFER;
 352
 353         usb_anchor_urb(urb, &data->intr_anchor);
 354
 355         err = usb_submit_urb(urb, mem_flags);
 356         if (err < 0) {
 357                 BT_ERR("%s urb %p submission failed (%d)",
 358                                                 hdev->name, urb, -err);
 359                 usb_unanchor_urb(urb);
 360         }
 361
 362         usb_free_urb(urb);
 363
 364         return err;
 365 }
 366
 367 static void btusb_bulk_complete(struct urb *urb)
 368 {
 369         struct hci_dev *hdev = urb->context;
 370         struct btusb_data *data = hdev->driver_data;
 371         int err;
 372
 373         BT_DBG("%s urb %p status %d count %d", hdev->name,
 374                                         urb, urb->status, urb->actual_length);
 375
 376         if (!test_bit(HCI_RUNNING, &hdev->flags))
 377                 return;
 378
 379         if (urb->status == 0) {
 380                 hdev->stat.byte_rx += urb->actual_length;
 381
 382                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 383                                                 urb->transfer_buffer,
 384                                                 urb->actual_length) < 0) {
 385                         BT_ERR("%s corrupted ACL packet", hdev->name);
 386                         hdev->stat.err_rx++;
 387                 }
 388         }
 389
 390         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 391                 return;
 392
 393         usb_anchor_urb(urb, &data->bulk_anchor);
 394         usb_mark_last_busy(data->udev);
 395
 396         err = usb_submit_urb(urb, GFP_ATOMIC);
 397         if (err < 0) {
 398                 /* -EPERM: urb is being killed;
 399                  * -ENODEV: device got disconnected */
 400                 if (err != -EPERM && err != -ENODEV)
 401                         BT_ERR("%s urb %p failed to resubmit (%d)",
 402                                                 hdev->name, urb, -err);
 403                 usb_unanchor_urb(urb);
 404         }
 405 }
 406
 407 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 408 {
 409         struct btusb_data *data = hdev->driver_data;
 410         struct urb *urb;
 411         unsigned char *buf;
 412         unsigned int pipe;
 413         int err, size = HCI_MAX_FRAME_SIZE;
 414
 415         BT_DBG("%s", hdev->name);
 416
 417         if (!data->bulk_rx_ep)
 418                 return -ENODEV;
 419
 420         urb = usb_alloc_urb(0, mem_flags);
 421         if (!urb)
 422                 return -ENOMEM;
 423
 424         buf = kmalloc(size, mem_flags);
 425         if (!buf) {
 426                 usb_free_urb(urb);
 427                 return -ENOMEM;
 428         }
 429
 430         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 431
 432         usb_fill_bulk_urb(urb, data->udev, pipe,
 433                                         buf, size, btusb_bulk_complete, hdev);
 434
 435         urb->transfer_flags |= URB_FREE_BUFFER;
 436
 437         usb_mark_last_busy(data->udev);
 438         usb_anchor_urb(urb, &data->bulk_anchor);
 439
 440         err = usb_submit_urb(urb, mem_flags);
 441         if (err < 0) {
 442                 BT_ERR("%s urb %p submission failed (%d)",
 443                                                 hdev->name, urb, -err);
 444                 usb_unanchor_urb(urb);
 445         }
 446
 447         usb_free_urb(urb);
 448
 449         return err;
 450 }
 451
 452 static void btusb_isoc_complete(struct urb *urb)
 453 {
 454         struct hci_dev *hdev = urb->context;
 455         struct btusb_data *data = hdev->driver_data;
 456         int i, err;
 457
 458         BT_DBG("%s urb %p status %d count %d", hdev->name,
 459                                         urb, urb->status, urb->actual_length);
 460
 461         if (!test_bit(HCI_RUNNING, &hdev->flags))
 462                 return;
 463
 464         if (urb->status == 0) {
 465                 for (i = 0; i < urb->number_of_packets; i++) {
 466                         unsigned int offset = urb->iso_frame_desc[i].offset;
 467                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 468
 469                         if (urb->iso_frame_desc[i].status)
 470                                 continue;
 471
 472                         hdev->stat.byte_rx += length;
 473
 474                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 475                                                 urb->transfer_buffer + offset,
 476                                                                 length) < 0) {
 477                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 478                                 hdev->stat.err_rx++;
 479                         }
 480                 }
 481         }
 482
 483         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 484                 return;
 485
 486         usb_anchor_urb(urb, &data->isoc_anchor);
 487
 488         err = usb_submit_urb(urb, GFP_ATOMIC);
 489         if (err < 0) {
 490                 /* -EPERM: urb is being killed;
 491                  * -ENODEV: device got disconnected */
 492                 if (err != -EPERM && err != -ENODEV)
 493                         BT_ERR("%s urb %p failed to resubmit (%d)",
 494                                                 hdev->name, urb, -err);
 495                 usb_unanchor_urb(urb);
 496         }
 497 }
 498
 499 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 500 {
 501         int i, offset = 0;
 502
 503         BT_DBG("len %d mtu %d", len, mtu);
 504
 505         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 506                                         i++, offset += mtu, len -= mtu) {
 507                 urb->iso_frame_desc[i].offset = offset;
 508                 urb->iso_frame_desc[i].length = mtu;
 509         }
 510
 511         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 512                 urb->iso_frame_desc[i].offset = offset;
 513                 urb->iso_frame_desc[i].length = len;
 514                 i++;
 515         }
 516
 517         urb->number_of_packets = i;
 518 }
 519
 520 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 521 {
 522         struct btusb_data *data = hdev->driver_data;
 523         struct urb *urb;
 524         unsigned char *buf;
 525         unsigned int pipe;
 526         int err, size;
 527
 528         BT_DBG("%s", hdev->name);
 529
 530         if (!data->isoc_rx_ep)
 531                 return -ENODEV;
 532
 533         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 534         if (!urb)
 535                 return -ENOMEM;
 536
 537         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 538                                                 BTUSB_MAX_ISOC_FRAMES;
 539
 540         buf = kmalloc(size, mem_flags);
 541         if (!buf) {
 542                 usb_free_urb(urb);
 543                 return -ENOMEM;
 544         }
 545
 546         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 547
 548         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 549                                 hdev, data->isoc_rx_ep->bInterval);
 550
 551         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 552
 553         __fill_isoc_descriptor(urb, size,
 554                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 555
 556         usb_anchor_urb(urb, &data->isoc_anchor);
 557
 558         err = usb_submit_urb(urb, mem_flags);
 559         if (err < 0) {
 560                 BT_ERR("%s urb %p submission failed (%d)",
 561                                                 hdev->name, urb, -err);
 562                 usb_unanchor_urb(urb);
 563         }
 564
 565         usb_free_urb(urb);
 566
 567         return err;
 568 }
 569
 570 static void btusb_tx_complete(struct urb *urb)
 571 {
 572         struct sk_buff *skb = urb->context;
 573         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 574         struct btusb_data *data = hdev->driver_data;
 575
 576         BT_DBG("%s urb %p status %d count %d", hdev->name,
 577                                         urb, urb->status, urb->actual_length);
 578
 579         if (!test_bit(HCI_RUNNING, &hdev->flags))
 580                 goto done;
 581
 582         if (!urb->status)
 583                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 584         else
 585                 hdev->stat.err_tx++;
 586
 587 done:
 588         spin_lock(&data->txlock);
 589         data->tx_in_flight--;
 590         spin_unlock(&data->txlock);
 591
 592         kfree(urb->setup_packet);
 593
 594         kfree_skb(skb);
 595 }
 596
 597 static void btusb_isoc_tx_complete(struct urb *urb)
 598 {
 599         struct sk_buff *skb = urb->context;
 600         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 601
 602         BT_DBG("%s urb %p status %d count %d", hdev->name,
 603                                         urb, urb->status, urb->actual_length);
 604
 605         if (!test_bit(HCI_RUNNING, &hdev->flags))
 606                 goto done;
 607
 608         if (!urb->status)
 609                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 610         else
 611                 hdev->stat.err_tx++;
 612
 613 done:
 614         kfree(urb->setup_packet);
 615
 616         kfree_skb(skb);
 617 }
 618
 619 static int btusb_open(struct hci_dev *hdev)
 620 {
 621         struct btusb_data *data = hdev->driver_data;
 622         int err;
 623
 624         BT_DBG("%s", hdev->name);
 625
 626         err = usb_autopm_get_interface(data->intf);
 627         if (err < 0)
 628                 return err;
 629
 630         data->intf->needs_remote_wakeup = 1;
 631
 632         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 633                 goto done;
 634
 635         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 636                 goto done;
 637
 638         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 639         if (err < 0)
 640                 goto failed;
 641
 642         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 643         if (err < 0) {
 644                 usb_kill_anchored_urbs(&data->intr_anchor);
 645                 goto failed;
 646         }
 647
 648         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 649         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 650
 651 done:
 652         usb_autopm_put_interface(data->intf);
 653         return 0;
 654
 655 failed:
 656         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 657         clear_bit(HCI_RUNNING, &hdev->flags);
 658         usb_autopm_put_interface(data->intf);
 659         return err;
 660 }
 661
 662 static void btusb_stop_traffic(struct btusb_data *data)
 663 {
 664         usb_kill_anchored_urbs(&data->intr_anchor);
 665         usb_kill_anchored_urbs(&data->bulk_anchor);
 666         usb_kill_anchored_urbs(&data->isoc_anchor);
 667 }
 668
 669 static int btusb_close(struct hci_dev *hdev)
 670 {
 671         struct btusb_data *data = hdev->driver_data;
 672         int err;
 673
 674         BT_DBG("%s", hdev->name);
 675
 676         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 677                 return 0;
 678
 679         cancel_work_sync(&data->work);
 680         cancel_work_sync(&data->waker);
 681
 682         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 683         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 684         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 685
 686         btusb_stop_traffic(data);
 687         err = usb_autopm_get_interface(data->intf);
 688         if (err < 0)
 689                 goto failed;
 690
 691         data->intf->needs_remote_wakeup = 0;
 692         usb_autopm_put_interface(data->intf);
 693
 694 failed:
 695         usb_scuttle_anchored_urbs(&data->deferred);
 696         return 0;
 697 }
 698
 699 static int btusb_flush(struct hci_dev *hdev)
 700 {
 701         struct btusb_data *data = hdev->driver_data;
 702
 703         BT_DBG("%s", hdev->name);
 704
 705         usb_kill_anchored_urbs(&data->tx_anchor);
 706
 707         return 0;
 708 }
 709
 710 static int btusb_send_frame(struct sk_buff *skb)
 711 {
 712         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 713         struct btusb_data *data = hdev->driver_data;
 714         struct usb_ctrlrequest *dr;
 715         struct urb *urb;
 716         unsigned int pipe;
 717         int err;
 718
 719         BT_DBG("%s", hdev->name);
 720
 721         if (!test_bit(HCI_RUNNING, &hdev->flags))
 722                 return -EBUSY;
 723
 724         switch (bt_cb(skb)->pkt_type) {
 725         case HCI_COMMAND_PKT:
 726                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 727                 if (!urb)
 728                         return -ENOMEM;
 729
 730                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 731                 if (!dr) {
 732                         usb_free_urb(urb);
 733                         return -ENOMEM;
 734                 }
 735
 736                 dr->bRequestType = data->cmdreq_type;
 737                 dr->bRequest     = 0;
 738                 dr->wIndex       = 0;
 739                 dr->wValue       = 0;
 740                 dr->wLength      = __cpu_to_le16(skb->len);
 741
 742                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 743
 744                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 745                                 skb->data, skb->len, btusb_tx_complete, skb);
 746
 747                 hdev->stat.cmd_tx++;
 748                 break;
 749
 750         case HCI_ACLDATA_PKT:
 751                 if (!data->bulk_tx_ep)
 752                         return -ENODEV;
 753
 754                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 755                 if (!urb)
 756                         return -ENOMEM;
 757
 758                 pipe = usb_sndbulkpipe(data->udev,
 759                                         data->bulk_tx_ep->bEndpointAddress);
 760
 761                 usb_fill_bulk_urb(urb, data->udev, pipe,
 762                                 skb->data, skb->len, btusb_tx_complete, skb);
 763
 764                 hdev->stat.acl_tx++;
 765                 break;
 766
 767         case HCI_SCODATA_PKT:
 768                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 769                         return -ENODEV;
 770
 771                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 772                 if (!urb)
 773                         return -ENOMEM;
 774
 775                 pipe = usb_sndisocpipe(data->udev,
 776                                         data->isoc_tx_ep->bEndpointAddress);
 777
 778                 usb_fill_int_urb(urb, data->udev, pipe,
 779                                 skb->data, skb->len, btusb_isoc_tx_complete,
 780                                 skb, data->isoc_tx_ep->bInterval);
 781
 782                 urb->transfer_flags  = URB_ISO_ASAP;
 783
 784                 __fill_isoc_descriptor(urb, skb->len,
 785                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 786
 787                 hdev->stat.sco_tx++;
 788                 goto skip_waking;
 789
 790         default:
 791                 return -EILSEQ;
 792         }
 793
 794         err = inc_tx(data);
 795         if (err) {
 796                 usb_anchor_urb(urb, &data->deferred);
 797                 schedule_work(&data->waker);
 798                 err = 0;
 799                 goto done;
 800         }
 801
 802 skip_waking:
 803         usb_anchor_urb(urb, &data->tx_anchor);
 804
 805         err = usb_submit_urb(urb, GFP_ATOMIC);
 806         if (err < 0) {
 807                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 808                 kfree(urb->setup_packet);
 809                 usb_unanchor_urb(urb);
 810         } else {
 811                 usb_mark_last_busy(data->udev);
 812         }
 813
 814 done:
 815         usb_free_urb(urb);
 816         return err;
 817 }
 818
 819 static void btusb_destruct(struct hci_dev *hdev)
 820 {
 821         struct btusb_data *data = hdev->driver_data;
 822
 823         BT_DBG("%s", hdev->name);
 824
 825         kfree(data);
 826 }
 827
 828 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 829 {
 830         struct btusb_data *data = hdev->driver_data;
 831
 832         BT_DBG("%s evt %d", hdev->name, evt);
 833
 834         if (hdev->conn_hash.sco_num != data->sco_num) {
 835                 data->sco_num = hdev->conn_hash.sco_num;
 836                 schedule_work(&data->work);
 837         }
 838 }
 839
 840 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 841 {
 842         struct btusb_data *data = hdev->driver_data;
 843         struct usb_interface *intf = data->isoc;
 844         struct usb_endpoint_descriptor *ep_desc;
 845         int i, err;
 846
 847         if (!data->isoc)
 848                 return -ENODEV;
 849
 850         err = usb_set_interface(data->udev, 1, altsetting);
 851         if (err < 0) {
 852                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 853                 return err;
 854         }
 855
 856         data->isoc_altsetting = altsetting;
 857
 858         data->isoc_tx_ep = NULL;
 859         data->isoc_rx_ep = NULL;
 860
 861         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 862                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 863
 864                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 865                         data->isoc_tx_ep = ep_desc;
 866                         continue;
 867                 }
 868
 869                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 870                         data->isoc_rx_ep = ep_desc;
 871                         continue;
 872                 }
 873         }
 874
 875         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 876                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 877                 return -ENODEV;
 878         }
 879
 880         return 0;
 881 }
 882
 883 static void btusb_work(struct work_struct *work)
 884 {
 885         struct btusb_data *data = container_of(work, struct btusb_data, work);
 886         struct hci_dev *hdev = data->hdev;
 887         int err;
 888
 889         if (hdev->conn_hash.sco_num > 0) {
 890                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 891                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 892                         if (err < 0) {
 893                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 894                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 895                                 return;
 896                         }
 897
 898                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 899                 }
 900                 if (data->isoc_altsetting != 2) {
 901                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 902                         usb_kill_anchored_urbs(&data->isoc_anchor);
 903
 904                         if (__set_isoc_interface(hdev, 2) < 0)
 905                                 return;
 906                 }
 907
 908                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 909                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 910                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 911                         else
 912                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 913                 }
 914         } else {
 915                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 916                 usb_kill_anchored_urbs(&data->isoc_anchor);
 917
 918                 __set_isoc_interface(hdev, 0);
 919                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 920                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 921         }
 922 }
 923
 924 static void btusb_waker(struct work_struct *work)
 925 {
 926         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 927         int err;
 928
 929         err = usb_autopm_get_interface(data->intf);
 930         if (err < 0)
 931                 return;
 932
 933         usb_autopm_put_interface(data->intf);
 934 }
 935
 936 static int btusb_probe(struct usb_interface *intf,
 937                                 const struct usb_device_id *id)
 938 {
 939         struct usb_endpoint_descriptor *ep_desc;
 940         struct btusb_data *data;
 941         struct hci_dev *hdev;
 942         int i, err;
 943
 944         BT_DBG("intf %p id %p", intf, id);
 945
 946         /* interface numbers are hardcoded in the spec */
 947         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 948                 return -ENODEV;
 949
 950         if (!id->driver_info) {
 951                 const struct usb_device_id *match;
 952                 match = usb_match_id(intf, blacklist_table);
 953                 if (match)
 954                         id = match;
 955         }
 956
 957         if (id->driver_info == BTUSB_IGNORE)
 958                 return -ENODEV;
 959
 960         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 961                 return -ENODEV;
 962
 963         if (ignore_csr && id->driver_info & BTUSB_CSR)
 964                 return -ENODEV;
 965
 966         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 967                 return -ENODEV;
 968
 969         if (id->driver_info & BTUSB_ATH3012) {
 970                 struct usb_device *udev = interface_to_usbdev(intf);
 971
 972                 /* Old firmware would otherwise let ath3k driver load
 973                  * patch and sysconfig files */
 974                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 975                         return -ENODEV;
 976         }
 977
 978         data = kzalloc(sizeof(*data), GFP_KERNEL);
 979         if (!data)
 980                 return -ENOMEM;
 981
 982         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 983                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 984
 985                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 986                         data->intr_ep = ep_desc;
 987                         continue;
 988                 }
 989
 990                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 991                         data->bulk_tx_ep = ep_desc;
 992                         continue;
 993                 }
 994
 995                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 996                         data->bulk_rx_ep = ep_desc;
 997                         continue;
 998                 }
 999         }
1000
1001         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1002                 kfree(data);
1003                 return -ENODEV;
1004         }
1005
1006         data->cmdreq_type = USB_TYPE_CLASS;
1007
1008         data->udev = interface_to_usbdev(intf);
1009         data->intf = intf;
1010
1011         spin_lock_init(&data->lock);
1012
1013         INIT_WORK(&data->work, btusb_work);
1014         INIT_WORK(&data->waker, btusb_waker);
1015         spin_lock_init(&data->txlock);
1016
1017         init_usb_anchor(&data->tx_anchor);
1018         init_usb_anchor(&data->intr_anchor);
1019         init_usb_anchor(&data->bulk_anchor);
1020         init_usb_anchor(&data->isoc_anchor);
1021         init_usb_anchor(&data->deferred);
1022
1023         hdev = hci_alloc_dev();
1024         if (!hdev) {
1025                 kfree(data);
1026                 return -ENOMEM;
1027         }
1028
1029         hdev->bus = HCI_USB;
1030         hdev->driver_data = data;
1031
1032         data->hdev = hdev;
1033
1034         SET_HCIDEV_DEV(hdev, &intf->dev);
1035
1036         hdev->open     = btusb_open;
1037         hdev->close    = btusb_close;
1038         hdev->flush    = btusb_flush;
1039         hdev->send     = btusb_send_frame;
1040         hdev->destruct = btusb_destruct;
1041         hdev->notify   = btusb_notify;
1042
1043         hdev->owner = THIS_MODULE;
1044
1045         /* Interface numbers are hardcoded in the specification */
1046         data->isoc = usb_ifnum_to_if(data->udev, 1);
1047
1048         if (!reset)
1049                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1050
1051         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1052                 if (!disable_scofix)
1053                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1054         }
1055
1056         if (id->driver_info & BTUSB_BROKEN_ISOC)
1057                 data->isoc = NULL;
1058
1059         if (id->driver_info & BTUSB_DIGIANSWER) {
1060                 data->cmdreq_type = USB_TYPE_VENDOR;
1061                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1062         }
1063
1064         if (id->driver_info & BTUSB_CSR) {
1065                 struct usb_device *udev = data->udev;
1066
1067                 /* Old firmware would otherwise execute USB reset */
1068                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1069                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1070         }
1071
1072         if (id->driver_info & BTUSB_SNIFFER) {
1073                 struct usb_device *udev = data->udev;
1074
1075                 /* New sniffer firmware has crippled HCI interface */
1076                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1077                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1078
1079                 data->isoc = NULL;
1080         }
1081
1082         if (id->driver_info & BTUSB_BCM92035) {
1083                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1084                 struct sk_buff *skb;
1085
1086                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1087                 if (skb) {
1088                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1089                         skb_queue_tail(&hdev->driver_init, skb);
1090                 }
1091         }
1092
1093         if (data->isoc) {
1094                 err = usb_driver_claim_interface(&btusb_driver,
1095                                                         data->isoc, data);
1096                 if (err < 0) {
1097                         hci_free_dev(hdev);
1098                         kfree(data);
1099                         return err;
1100                 }
1101         }
1102
1103         err = hci_register_dev(hdev);
1104         if (err < 0) {
1105                 hci_free_dev(hdev);
1106                 kfree(data);
1107                 return err;
1108         }
1109
1110         usb_set_intfdata(intf, data);
1111
1112         return 0;
1113 }
1114
1115 static void btusb_disconnect(struct usb_interface *intf)
1116 {
1117         struct btusb_data *data = usb_get_intfdata(intf);
1118         struct hci_dev *hdev;
1119
1120         BT_DBG("intf %p", intf);
1121
1122         if (!data)
1123                 return;
1124
1125         hdev = data->hdev;
1126
1127         __hci_dev_hold(hdev);
1128
1129         usb_set_intfdata(data->intf, NULL);
1130
1131         if (data->isoc)
1132                 usb_set_intfdata(data->isoc, NULL);
1133
1134         hci_unregister_dev(hdev);
1135
1136         if (intf == data->isoc)
1137                 usb_driver_release_interface(&btusb_driver, data->intf);
1138         else if (data->isoc)
1139                 usb_driver_release_interface(&btusb_driver, data->isoc);
1140
1141         __hci_dev_put(hdev);
1142
1143         hci_free_dev(hdev);
1144 }
1145
1146 #ifdef CONFIG_PM
1147 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1148 {
1149         struct btusb_data *data = usb_get_intfdata(intf);
1150
1151         BT_DBG("intf %p", intf);
1152
1153         if (data->suspend_count++)
1154                 return 0;
1155
1156         spin_lock_irq(&data->txlock);
1157         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1158                 set_bit(BTUSB_SUSPENDING, &data->flags);
1159                 spin_unlock_irq(&data->txlock);
1160         } else {
1161                 spin_unlock_irq(&data->txlock);
1162                 data->suspend_count--;
1163                 return -EBUSY;
1164         }
1165
1166         cancel_work_sync(&data->work);
1167
1168         btusb_stop_traffic(data);
1169         usb_kill_anchored_urbs(&data->tx_anchor);
1170
1171         return 0;
1172 }
1173
1174 static void play_deferred(struct btusb_data *data)
1175 {
1176         struct urb *urb;
1177         int err;
1178
1179         while ((urb = usb_get_from_anchor(&data->deferred))) {
1180                 err = usb_submit_urb(urb, GFP_ATOMIC);
1181                 if (err < 0)
1182                         break;
1183
1184                 data->tx_in_flight++;
1185         }
1186         usb_scuttle_anchored_urbs(&data->deferred);
1187 }
1188
1189 static int btusb_resume(struct usb_interface *intf)
1190 {
1191         struct btusb_data *data = usb_get_intfdata(intf);
1192         struct hci_dev *hdev = data->hdev;
1193         int err = 0;
1194
1195         BT_DBG("intf %p", intf);
1196
1197         if (--data->suspend_count)
1198                 return 0;
1199
1200         if (!test_bit(HCI_RUNNING, &hdev->flags))
1201                 goto done;
1202
1203         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1204                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1205                 if (err < 0) {
1206                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1207                         goto failed;
1208                 }
1209         }
1210
1211         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1212                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1213                 if (err < 0) {
1214                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1215                         goto failed;
1216                 }
1217
1218                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1219         }
1220
1221         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1222                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1223                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1224                 else
1225                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1226         }
1227
1228         spin_lock_irq(&data->txlock);
1229         play_deferred(data);
1230         clear_bit(BTUSB_SUSPENDING, &data->flags);
1231         spin_unlock_irq(&data->txlock);
1232         schedule_work(&data->work);
1233
1234         return 0;
1235
1236 failed:
1237         usb_scuttle_anchored_urbs(&data->deferred);
1238 done:
1239         spin_lock_irq(&data->txlock);
1240         clear_bit(BTUSB_SUSPENDING, &data->flags);
1241         spin_unlock_irq(&data->txlock);
1242
1243         return err;
1244 }
1245 #endif
1246
1247 static struct usb_driver btusb_driver = {
1248         .name           = "btusb",
1249         .probe          = btusb_probe,
1250         .disconnect     = btusb_disconnect,
1251 #ifdef CONFIG_PM
1252         .suspend        = btusb_suspend,
1253         .resume         = btusb_resume,
1254 #endif
1255         .id_table       = btusb_table,
1256         .supports_autosuspend = 1,
1257 };
1258
1259 static int __init btusb_init(void)
1260 {
1261         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1262
1263         return usb_register(&btusb_driver);
1264 }
1265
1266 static void __exit btusb_exit(void)
1267 {
1268         usb_deregister(&btusb_driver);
1269 }
1270
1271 module_init(btusb_init);
1272 module_exit(btusb_exit);
1273
1274 module_param(ignore_dga, bool, 0644);
1275 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1276
1277 module_param(ignore_csr, bool, 0644);
1278 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1279
1280 module_param(ignore_sniffer, bool, 0644);
1281 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1282
1283 module_param(disable_scofix, bool, 0644);
1284 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1285
1286 module_param(force_scofix, bool, 0644);
1287 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1288
1289 module_param(reset, bool, 0644);
1290 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1291
1292 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1293 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1294 MODULE_VERSION(VERSION);
1295 MODULE_LICENSE("GPL");