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/module.h>
  25 #include <linux/usb.h>
  26
  27 #include <net/bluetooth/bluetooth.h>
  28 #include <net/bluetooth/hci_core.h>
  29
  30 #define VERSION "0.6"
  31
  32 static bool ignore_dga;
  33 static bool ignore_csr;
  34 static bool ignore_sniffer;
  35 static bool disable_scofix;
  36 static bool force_scofix;
  37
  38 static bool reset = 1;
  39
  40 static struct usb_driver btusb_driver;
  41
  42 #define BTUSB_IGNORE            0x01
  43 #define BTUSB_DIGIANSWER        0x02
  44 #define BTUSB_CSR               0x04
  45 #define BTUSB_SNIFFER           0x08
  46 #define BTUSB_BCM92035          0x10
  47 #define BTUSB_BROKEN_ISOC       0x20
  48 #define BTUSB_WRONG_SCO_MTU     0x40
  49 #define BTUSB_ATH3012           0x80
  50
  51 static struct usb_device_id btusb_table[] = {
  52         /* Generic Bluetooth USB device */
  53         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  54
  55         /* Apple-specific (Broadcom) devices */
  56         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
  57
  58         /* Broadcom SoftSailing reporting vendor specific */
  59         { USB_DEVICE(0x0a5c, 0x21e1) },
  60
  61         /* Apple MacBookPro 7,1 */
  62         { USB_DEVICE(0x05ac, 0x8213) },
  63
  64         /* Apple iMac11,1 */
  65         { USB_DEVICE(0x05ac, 0x8215) },
  66
  67         /* Apple MacBookPro6,2 */
  68         { USB_DEVICE(0x05ac, 0x8218) },
  69
  70         /* Apple MacBookAir3,1, MacBookAir3,2 */
  71         { USB_DEVICE(0x05ac, 0x821b) },
  72
  73         /* Apple MacBookAir4,1 */
  74         { USB_DEVICE(0x05ac, 0x821f) },
  75
  76         /* Apple MacBookPro8,2 */
  77         { USB_DEVICE(0x05ac, 0x821a) },
  78
  79         /* Apple MacMini5,1 */
  80         { USB_DEVICE(0x05ac, 0x8281) },
  81
  82         /* AVM BlueFRITZ! USB v2.0 */
  83         { USB_DEVICE(0x057c, 0x3800) },
  84
  85         /* Bluetooth Ultraport Module from IBM */
  86         { USB_DEVICE(0x04bf, 0x030a) },
  87
  88         /* ALPS Modules with non-standard id */
  89         { USB_DEVICE(0x044e, 0x3001) },
  90         { USB_DEVICE(0x044e, 0x3002) },
  91
  92         /* Ericsson with non-standard id */
  93         { USB_DEVICE(0x0bdb, 0x1002) },
  94
  95         /* Canyon CN-BTU1 with HID interfaces */
  96         { USB_DEVICE(0x0c10, 0x0000) },
  97
  98         /* Broadcom BCM20702A0 */
  99         { USB_DEVICE(0x0b05, 0x17b5) },
 100         { USB_DEVICE(0x04ca, 0x2003) },
 101         { USB_DEVICE(0x0489, 0xe042) },
 102         { USB_DEVICE(0x413c, 0x8197) },
 103
 104         /* Foxconn - Hon Hai */
 105         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 106
 107         /*Broadcom devices with vendor specific id */
 108         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 109
 110         { }     /* Terminating entry */
 111 };
 112
 113 MODULE_DEVICE_TABLE(usb, btusb_table);
 114
 115 static struct usb_device_id blacklist_table[] = {
 116         /* CSR BlueCore devices */
 117         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 118
 119         /* Broadcom BCM2033 without firmware */
 120         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 121
 122         /* Atheros 3011 with sflash firmware */
 123         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 124         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 125         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 126         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 127         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 128         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 129
 130         /* Atheros AR9285 Malbec with sflash firmware */
 131         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 132
 133         /* Atheros 3012 with sflash firmware */
 134         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 135         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 136         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 137         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 151
 152         /* Atheros AR5BBU12 with sflash firmware */
 153         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 154
 155         /* Atheros AR5BBU12 with sflash firmware */
 156         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 158
 159         /* Broadcom BCM2035 */
 160         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 161         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 162         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 163
 164         /* Broadcom BCM2045 */
 165         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 166         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 167
 168         /* IBM/Lenovo ThinkPad with Broadcom chip */
 169         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 170         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 171
 172         /* HP laptop with Broadcom chip */
 173         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 174
 175         /* Dell laptop with Broadcom chip */
 176         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 177
 178         /* Dell Wireless 370 and 410 devices */
 179         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 180         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 181
 182         /* Belkin F8T012 and F8T013 devices */
 183         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 184         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 185
 186         /* Asus WL-BTD202 device */
 187         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 188
 189         /* Kensington Bluetooth USB adapter */
 190         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 191
 192         /* RTX Telecom based adapters with buggy SCO support */
 193         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 194         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 195
 196         /* CONWISE Technology based adapters with buggy SCO support */
 197         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 198
 199         /* Digianswer devices */
 200         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 201         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 202
 203         /* CSR BlueCore Bluetooth Sniffer */
 204         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 205
 206         /* Frontline ComProbe Bluetooth Sniffer */
 207         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 208
 209         { }     /* Terminating entry */
 210 };
 211
 212 #define BTUSB_MAX_ISOC_FRAMES   10
 213
 214 #define BTUSB_INTR_RUNNING      0
 215 #define BTUSB_BULK_RUNNING      1
 216 #define BTUSB_ISOC_RUNNING      2
 217 #define BTUSB_SUSPENDING        3
 218 #define BTUSB_DID_ISO_RESUME    4
 219
 220 struct btusb_data {
 221         struct hci_dev       *hdev;
 222         struct usb_device    *udev;
 223         struct usb_interface *intf;
 224         struct usb_interface *isoc;
 225
 226         spinlock_t lock;
 227
 228         unsigned long flags;
 229
 230         struct work_struct work;
 231         struct work_struct waker;
 232
 233         struct usb_anchor tx_anchor;
 234         struct usb_anchor intr_anchor;
 235         struct usb_anchor bulk_anchor;
 236         struct usb_anchor isoc_anchor;
 237         struct usb_anchor deferred;
 238         int tx_in_flight;
 239         spinlock_t txlock;
 240
 241         struct usb_endpoint_descriptor *intr_ep;
 242         struct usb_endpoint_descriptor *bulk_tx_ep;
 243         struct usb_endpoint_descriptor *bulk_rx_ep;
 244         struct usb_endpoint_descriptor *isoc_tx_ep;
 245         struct usb_endpoint_descriptor *isoc_rx_ep;
 246
 247         __u8 cmdreq_type;
 248
 249         unsigned int sco_num;
 250         int isoc_altsetting;
 251         int suspend_count;
 252 };
 253
 254 static int inc_tx(struct btusb_data *data)
 255 {
 256         unsigned long flags;
 257         int rv;
 258
 259         spin_lock_irqsave(&data->txlock, flags);
 260         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 261         if (!rv)
 262                 data->tx_in_flight++;
 263         spin_unlock_irqrestore(&data->txlock, flags);
 264
 265         return rv;
 266 }
 267
 268 static void btusb_intr_complete(struct urb *urb)
 269 {
 270         struct hci_dev *hdev = urb->context;
 271         struct btusb_data *data = hci_get_drvdata(hdev);
 272         int err;
 273
 274         BT_DBG("%s urb %p status %d count %d", hdev->name,
 275                                         urb, urb->status, urb->actual_length);
 276
 277         if (!test_bit(HCI_RUNNING, &hdev->flags))
 278                 return;
 279
 280         if (urb->status == 0) {
 281                 hdev->stat.byte_rx += urb->actual_length;
 282
 283                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 284                                                 urb->transfer_buffer,
 285                                                 urb->actual_length) < 0) {
 286                         BT_ERR("%s corrupted event packet", hdev->name);
 287                         hdev->stat.err_rx++;
 288                 }
 289         }
 290
 291         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 292                 return;
 293
 294         usb_mark_last_busy(data->udev);
 295         usb_anchor_urb(urb, &data->intr_anchor);
 296
 297         err = usb_submit_urb(urb, GFP_ATOMIC);
 298         if (err < 0) {
 299                 /* -EPERM: urb is being killed;
 300                  * -ENODEV: device got disconnected */
 301                 if (err != -EPERM && err != -ENODEV)
 302                         BT_ERR("%s urb %p failed to resubmit (%d)",
 303                                                 hdev->name, urb, -err);
 304                 usb_unanchor_urb(urb);
 305         }
 306 }
 307
 308 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 309 {
 310         struct btusb_data *data = hci_get_drvdata(hdev);
 311         struct urb *urb;
 312         unsigned char *buf;
 313         unsigned int pipe;
 314         int err, size;
 315
 316         BT_DBG("%s", hdev->name);
 317
 318         if (!data->intr_ep)
 319                 return -ENODEV;
 320
 321         urb = usb_alloc_urb(0, mem_flags);
 322         if (!urb)
 323                 return -ENOMEM;
 324
 325         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 326
 327         buf = kmalloc(size, mem_flags);
 328         if (!buf) {
 329                 usb_free_urb(urb);
 330                 return -ENOMEM;
 331         }
 332
 333         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 334
 335         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 336                                                 btusb_intr_complete, hdev,
 337                                                 data->intr_ep->bInterval);
 338
 339         urb->transfer_flags |= URB_FREE_BUFFER;
 340
 341         usb_anchor_urb(urb, &data->intr_anchor);
 342
 343         err = usb_submit_urb(urb, mem_flags);
 344         if (err < 0) {
 345                 if (err != -EPERM && err != -ENODEV)
 346                         BT_ERR("%s urb %p submission failed (%d)",
 347                                                 hdev->name, urb, -err);
 348                 usb_unanchor_urb(urb);
 349         }
 350
 351         usb_free_urb(urb);
 352
 353         return err;
 354 }
 355
 356 static void btusb_bulk_complete(struct urb *urb)
 357 {
 358         struct hci_dev *hdev = urb->context;
 359         struct btusb_data *data = hci_get_drvdata(hdev);
 360         int err;
 361
 362         BT_DBG("%s urb %p status %d count %d", hdev->name,
 363                                         urb, urb->status, urb->actual_length);
 364
 365         if (!test_bit(HCI_RUNNING, &hdev->flags))
 366                 return;
 367
 368         if (urb->status == 0) {
 369                 hdev->stat.byte_rx += urb->actual_length;
 370
 371                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 372                                                 urb->transfer_buffer,
 373                                                 urb->actual_length) < 0) {
 374                         BT_ERR("%s corrupted ACL packet", hdev->name);
 375                         hdev->stat.err_rx++;
 376                 }
 377         }
 378
 379         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 380                 return;
 381
 382         usb_anchor_urb(urb, &data->bulk_anchor);
 383         usb_mark_last_busy(data->udev);
 384
 385         err = usb_submit_urb(urb, GFP_ATOMIC);
 386         if (err < 0) {
 387                 /* -EPERM: urb is being killed;
 388                  * -ENODEV: device got disconnected */
 389                 if (err != -EPERM && err != -ENODEV)
 390                         BT_ERR("%s urb %p failed to resubmit (%d)",
 391                                                 hdev->name, urb, -err);
 392                 usb_unanchor_urb(urb);
 393         }
 394 }
 395
 396 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 397 {
 398         struct btusb_data *data = hci_get_drvdata(hdev);
 399         struct urb *urb;
 400         unsigned char *buf;
 401         unsigned int pipe;
 402         int err, size = HCI_MAX_FRAME_SIZE;
 403
 404         BT_DBG("%s", hdev->name);
 405
 406         if (!data->bulk_rx_ep)
 407                 return -ENODEV;
 408
 409         urb = usb_alloc_urb(0, mem_flags);
 410         if (!urb)
 411                 return -ENOMEM;
 412
 413         buf = kmalloc(size, mem_flags);
 414         if (!buf) {
 415                 usb_free_urb(urb);
 416                 return -ENOMEM;
 417         }
 418
 419         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 420
 421         usb_fill_bulk_urb(urb, data->udev, pipe,
 422                                         buf, size, btusb_bulk_complete, hdev);
 423
 424         urb->transfer_flags |= URB_FREE_BUFFER;
 425
 426         usb_mark_last_busy(data->udev);
 427         usb_anchor_urb(urb, &data->bulk_anchor);
 428
 429         err = usb_submit_urb(urb, mem_flags);
 430         if (err < 0) {
 431                 if (err != -EPERM && err != -ENODEV)
 432                         BT_ERR("%s urb %p submission failed (%d)",
 433                                                 hdev->name, urb, -err);
 434                 usb_unanchor_urb(urb);
 435         }
 436
 437         usb_free_urb(urb);
 438
 439         return err;
 440 }
 441
 442 static void btusb_isoc_complete(struct urb *urb)
 443 {
 444         struct hci_dev *hdev = urb->context;
 445         struct btusb_data *data = hci_get_drvdata(hdev);
 446         int i, err;
 447
 448         BT_DBG("%s urb %p status %d count %d", hdev->name,
 449                                         urb, urb->status, urb->actual_length);
 450
 451         if (!test_bit(HCI_RUNNING, &hdev->flags))
 452                 return;
 453
 454         if (urb->status == 0) {
 455                 for (i = 0; i < urb->number_of_packets; i++) {
 456                         unsigned int offset = urb->iso_frame_desc[i].offset;
 457                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 458
 459                         if (urb->iso_frame_desc[i].status)
 460                                 continue;
 461
 462                         hdev->stat.byte_rx += length;
 463
 464                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 465                                                 urb->transfer_buffer + offset,
 466                                                                 length) < 0) {
 467                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 468                                 hdev->stat.err_rx++;
 469                         }
 470                 }
 471         }
 472
 473         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 474                 return;
 475
 476         usb_anchor_urb(urb, &data->isoc_anchor);
 477
 478         err = usb_submit_urb(urb, GFP_ATOMIC);
 479         if (err < 0) {
 480                 /* -EPERM: urb is being killed;
 481                  * -ENODEV: device got disconnected */
 482                 if (err != -EPERM && err != -ENODEV)
 483                         BT_ERR("%s urb %p failed to resubmit (%d)",
 484                                                 hdev->name, urb, -err);
 485                 usb_unanchor_urb(urb);
 486         }
 487 }
 488
 489 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 490 {
 491         int i, offset = 0;
 492
 493         BT_DBG("len %d mtu %d", len, mtu);
 494
 495         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 496                                         i++, offset += mtu, len -= mtu) {
 497                 urb->iso_frame_desc[i].offset = offset;
 498                 urb->iso_frame_desc[i].length = mtu;
 499         }
 500
 501         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 502                 urb->iso_frame_desc[i].offset = offset;
 503                 urb->iso_frame_desc[i].length = len;
 504                 i++;
 505         }
 506
 507         urb->number_of_packets = i;
 508 }
 509
 510 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 511 {
 512         struct btusb_data *data = hci_get_drvdata(hdev);
 513         struct urb *urb;
 514         unsigned char *buf;
 515         unsigned int pipe;
 516         int err, size;
 517
 518         BT_DBG("%s", hdev->name);
 519
 520         if (!data->isoc_rx_ep)
 521                 return -ENODEV;
 522
 523         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 524         if (!urb)
 525                 return -ENOMEM;
 526
 527         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 528                                                 BTUSB_MAX_ISOC_FRAMES;
 529
 530         buf = kmalloc(size, mem_flags);
 531         if (!buf) {
 532                 usb_free_urb(urb);
 533                 return -ENOMEM;
 534         }
 535
 536         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 537
 538         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 539                                 hdev, data->isoc_rx_ep->bInterval);
 540
 541         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 542
 543         __fill_isoc_descriptor(urb, size,
 544                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 545
 546         usb_anchor_urb(urb, &data->isoc_anchor);
 547
 548         err = usb_submit_urb(urb, mem_flags);
 549         if (err < 0) {
 550                 if (err != -EPERM && err != -ENODEV)
 551                         BT_ERR("%s urb %p submission failed (%d)",
 552                                                 hdev->name, urb, -err);
 553                 usb_unanchor_urb(urb);
 554         }
 555
 556         usb_free_urb(urb);
 557
 558         return err;
 559 }
 560
 561 static void btusb_tx_complete(struct urb *urb)
 562 {
 563         struct sk_buff *skb = urb->context;
 564         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 565         struct btusb_data *data = hci_get_drvdata(hdev);
 566
 567         BT_DBG("%s urb %p status %d count %d", hdev->name,
 568                                         urb, urb->status, urb->actual_length);
 569
 570         if (!test_bit(HCI_RUNNING, &hdev->flags))
 571                 goto done;
 572
 573         if (!urb->status)
 574                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 575         else
 576                 hdev->stat.err_tx++;
 577
 578 done:
 579         spin_lock(&data->txlock);
 580         data->tx_in_flight--;
 581         spin_unlock(&data->txlock);
 582
 583         kfree(urb->setup_packet);
 584
 585         kfree_skb(skb);
 586 }
 587
 588 static void btusb_isoc_tx_complete(struct urb *urb)
 589 {
 590         struct sk_buff *skb = urb->context;
 591         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 592
 593         BT_DBG("%s urb %p status %d count %d", hdev->name,
 594                                         urb, urb->status, urb->actual_length);
 595
 596         if (!test_bit(HCI_RUNNING, &hdev->flags))
 597                 goto done;
 598
 599         if (!urb->status)
 600                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 601         else
 602                 hdev->stat.err_tx++;
 603
 604 done:
 605         kfree(urb->setup_packet);
 606
 607         kfree_skb(skb);
 608 }
 609
 610 static int btusb_open(struct hci_dev *hdev)
 611 {
 612         struct btusb_data *data = hci_get_drvdata(hdev);
 613         int err;
 614
 615         BT_DBG("%s", hdev->name);
 616
 617         err = usb_autopm_get_interface(data->intf);
 618         if (err < 0)
 619                 return err;
 620
 621         data->intf->needs_remote_wakeup = 1;
 622
 623         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 624                 goto done;
 625
 626         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 627                 goto done;
 628
 629         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 630         if (err < 0)
 631                 goto failed;
 632
 633         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 634         if (err < 0) {
 635                 usb_kill_anchored_urbs(&data->intr_anchor);
 636                 goto failed;
 637         }
 638
 639         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 640         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 641
 642 done:
 643         usb_autopm_put_interface(data->intf);
 644         return 0;
 645
 646 failed:
 647         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 648         clear_bit(HCI_RUNNING, &hdev->flags);
 649         usb_autopm_put_interface(data->intf);
 650         return err;
 651 }
 652
 653 static void btusb_stop_traffic(struct btusb_data *data)
 654 {
 655         usb_kill_anchored_urbs(&data->intr_anchor);
 656         usb_kill_anchored_urbs(&data->bulk_anchor);
 657         usb_kill_anchored_urbs(&data->isoc_anchor);
 658 }
 659
 660 static int btusb_close(struct hci_dev *hdev)
 661 {
 662         struct btusb_data *data = hci_get_drvdata(hdev);
 663         int err;
 664
 665         BT_DBG("%s", hdev->name);
 666
 667         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 668                 return 0;
 669
 670         cancel_work_sync(&data->work);
 671         cancel_work_sync(&data->waker);
 672
 673         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 674         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 675         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 676
 677         btusb_stop_traffic(data);
 678         err = usb_autopm_get_interface(data->intf);
 679         if (err < 0)
 680                 goto failed;
 681
 682         data->intf->needs_remote_wakeup = 0;
 683         usb_autopm_put_interface(data->intf);
 684
 685 failed:
 686         usb_scuttle_anchored_urbs(&data->deferred);
 687         return 0;
 688 }
 689
 690 static int btusb_flush(struct hci_dev *hdev)
 691 {
 692         struct btusb_data *data = hci_get_drvdata(hdev);
 693
 694         BT_DBG("%s", hdev->name);
 695
 696         usb_kill_anchored_urbs(&data->tx_anchor);
 697
 698         return 0;
 699 }
 700
 701 static int btusb_send_frame(struct sk_buff *skb)
 702 {
 703         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 704         struct btusb_data *data = hci_get_drvdata(hdev);
 705         struct usb_ctrlrequest *dr;
 706         struct urb *urb;
 707         unsigned int pipe;
 708         int err;
 709
 710         BT_DBG("%s", hdev->name);
 711
 712         if (!test_bit(HCI_RUNNING, &hdev->flags))
 713                 return -EBUSY;
 714
 715         switch (bt_cb(skb)->pkt_type) {
 716         case HCI_COMMAND_PKT:
 717                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 718                 if (!urb)
 719                         return -ENOMEM;
 720
 721                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 722                 if (!dr) {
 723                         usb_free_urb(urb);
 724                         return -ENOMEM;
 725                 }
 726
 727                 dr->bRequestType = data->cmdreq_type;
 728                 dr->bRequest     = 0;
 729                 dr->wIndex       = 0;
 730                 dr->wValue       = 0;
 731                 dr->wLength      = __cpu_to_le16(skb->len);
 732
 733                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 734
 735                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 736                                 skb->data, skb->len, btusb_tx_complete, skb);
 737
 738                 hdev->stat.cmd_tx++;
 739                 break;
 740
 741         case HCI_ACLDATA_PKT:
 742                 if (!data->bulk_tx_ep)
 743                         return -ENODEV;
 744
 745                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 746                 if (!urb)
 747                         return -ENOMEM;
 748
 749                 pipe = usb_sndbulkpipe(data->udev,
 750                                         data->bulk_tx_ep->bEndpointAddress);
 751
 752                 usb_fill_bulk_urb(urb, data->udev, pipe,
 753                                 skb->data, skb->len, btusb_tx_complete, skb);
 754
 755                 hdev->stat.acl_tx++;
 756                 break;
 757
 758         case HCI_SCODATA_PKT:
 759                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 760                         return -ENODEV;
 761
 762                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 763                 if (!urb)
 764                         return -ENOMEM;
 765
 766                 pipe = usb_sndisocpipe(data->udev,
 767                                         data->isoc_tx_ep->bEndpointAddress);
 768
 769                 usb_fill_int_urb(urb, data->udev, pipe,
 770                                 skb->data, skb->len, btusb_isoc_tx_complete,
 771                                 skb, data->isoc_tx_ep->bInterval);
 772
 773                 urb->transfer_flags  = URB_ISO_ASAP;
 774
 775                 __fill_isoc_descriptor(urb, skb->len,
 776                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 777
 778                 hdev->stat.sco_tx++;
 779                 goto skip_waking;
 780
 781         default:
 782                 return -EILSEQ;
 783         }
 784
 785         err = inc_tx(data);
 786         if (err) {
 787                 usb_anchor_urb(urb, &data->deferred);
 788                 schedule_work(&data->waker);
 789                 err = 0;
 790                 goto done;
 791         }
 792
 793 skip_waking:
 794         usb_anchor_urb(urb, &data->tx_anchor);
 795
 796         err = usb_submit_urb(urb, GFP_ATOMIC);
 797         if (err < 0) {
 798                 if (err != -EPERM && err != -ENODEV)
 799                         BT_ERR("%s urb %p submission failed (%d)",
 800                                                 hdev->name, urb, -err);
 801                 kfree(urb->setup_packet);
 802                 usb_unanchor_urb(urb);
 803         } else {
 804                 usb_mark_last_busy(data->udev);
 805         }
 806
 807 done:
 808         usb_free_urb(urb);
 809         return err;
 810 }
 811
 812 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 813 {
 814         struct btusb_data *data = hci_get_drvdata(hdev);
 815
 816         BT_DBG("%s evt %d", hdev->name, evt);
 817
 818         if (hdev->conn_hash.sco_num != data->sco_num) {
 819                 data->sco_num = hdev->conn_hash.sco_num;
 820                 schedule_work(&data->work);
 821         }
 822 }
 823
 824 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 825 {
 826         struct btusb_data *data = hci_get_drvdata(hdev);
 827         struct usb_interface *intf = data->isoc;
 828         struct usb_endpoint_descriptor *ep_desc;
 829         int i, err;
 830
 831         if (!data->isoc)
 832                 return -ENODEV;
 833
 834         err = usb_set_interface(data->udev, 1, altsetting);
 835         if (err < 0) {
 836                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 837                 return err;
 838         }
 839
 840         data->isoc_altsetting = altsetting;
 841
 842         data->isoc_tx_ep = NULL;
 843         data->isoc_rx_ep = NULL;
 844
 845         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 846                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 847
 848                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 849                         data->isoc_tx_ep = ep_desc;
 850                         continue;
 851                 }
 852
 853                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 854                         data->isoc_rx_ep = ep_desc;
 855                         continue;
 856                 }
 857         }
 858
 859         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 860                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 861                 return -ENODEV;
 862         }
 863
 864         return 0;
 865 }
 866
 867 static void btusb_work(struct work_struct *work)
 868 {
 869         struct btusb_data *data = container_of(work, struct btusb_data, work);
 870         struct hci_dev *hdev = data->hdev;
 871         int new_alts;
 872         int err;
 873
 874         if (hdev->conn_hash.sco_num > 0) {
 875                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 876                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 877                         if (err < 0) {
 878                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 879                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 880                                 return;
 881                         }
 882
 883                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 884                 }
 885
 886                 if (hdev->voice_setting & 0x0020) {
 887                         static const int alts[3] = { 2, 4, 5 };
 888                         new_alts = alts[hdev->conn_hash.sco_num - 1];
 889                 } else {
 890                         new_alts = hdev->conn_hash.sco_num;
 891                 }
 892
 893                 if (data->isoc_altsetting != new_alts) {
 894                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 895                         usb_kill_anchored_urbs(&data->isoc_anchor);
 896
 897                         if (__set_isoc_interface(hdev, new_alts) < 0)
 898                                 return;
 899                 }
 900
 901                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 902                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 903                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 904                         else
 905                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 906                 }
 907         } else {
 908                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 909                 usb_kill_anchored_urbs(&data->isoc_anchor);
 910
 911                 __set_isoc_interface(hdev, 0);
 912                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 913                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 914         }
 915 }
 916
 917 static void btusb_waker(struct work_struct *work)
 918 {
 919         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 920         int err;
 921
 922         err = usb_autopm_get_interface(data->intf);
 923         if (err < 0)
 924                 return;
 925
 926         usb_autopm_put_interface(data->intf);
 927 }
 928
 929 static int btusb_probe(struct usb_interface *intf,
 930                                 const struct usb_device_id *id)
 931 {
 932         struct usb_endpoint_descriptor *ep_desc;
 933         struct btusb_data *data;
 934         struct hci_dev *hdev;
 935         int i, err;
 936
 937         BT_DBG("intf %p id %p", intf, id);
 938
 939         /* interface numbers are hardcoded in the spec */
 940         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 941                 return -ENODEV;
 942
 943         if (!id->driver_info) {
 944                 const struct usb_device_id *match;
 945                 match = usb_match_id(intf, blacklist_table);
 946                 if (match)
 947                         id = match;
 948         }
 949
 950         if (id->driver_info == BTUSB_IGNORE)
 951                 return -ENODEV;
 952
 953         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 954                 return -ENODEV;
 955
 956         if (ignore_csr && id->driver_info & BTUSB_CSR)
 957                 return -ENODEV;
 958
 959         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 960                 return -ENODEV;
 961
 962         if (id->driver_info & BTUSB_ATH3012) {
 963                 struct usb_device *udev = interface_to_usbdev(intf);
 964
 965                 /* Old firmware would otherwise let ath3k driver load
 966                  * patch and sysconfig files */
 967                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 968                         return -ENODEV;
 969         }
 970
 971         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
 972         if (!data)
 973                 return -ENOMEM;
 974
 975         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 976                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 977
 978                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 979                         data->intr_ep = ep_desc;
 980                         continue;
 981                 }
 982
 983                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 984                         data->bulk_tx_ep = ep_desc;
 985                         continue;
 986                 }
 987
 988                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 989                         data->bulk_rx_ep = ep_desc;
 990                         continue;
 991                 }
 992         }
 993
 994         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
 995                 return -ENODEV;
 996
 997         data->cmdreq_type = USB_TYPE_CLASS;
 998
 999         data->udev = interface_to_usbdev(intf);
1000         data->intf = intf;
1001
1002         spin_lock_init(&data->lock);
1003
1004         INIT_WORK(&data->work, btusb_work);
1005         INIT_WORK(&data->waker, btusb_waker);
1006         spin_lock_init(&data->txlock);
1007
1008         init_usb_anchor(&data->tx_anchor);
1009         init_usb_anchor(&data->intr_anchor);
1010         init_usb_anchor(&data->bulk_anchor);
1011         init_usb_anchor(&data->isoc_anchor);
1012         init_usb_anchor(&data->deferred);
1013
1014         hdev = hci_alloc_dev();
1015         if (!hdev)
1016                 return -ENOMEM;
1017
1018         hdev->bus = HCI_USB;
1019         hci_set_drvdata(hdev, data);
1020
1021         data->hdev = hdev;
1022
1023         SET_HCIDEV_DEV(hdev, &intf->dev);
1024
1025         hdev->open     = btusb_open;
1026         hdev->close    = btusb_close;
1027         hdev->flush    = btusb_flush;
1028         hdev->send     = btusb_send_frame;
1029         hdev->notify   = btusb_notify;
1030
1031         /* Interface numbers are hardcoded in the specification */
1032         data->isoc = usb_ifnum_to_if(data->udev, 1);
1033
1034         if (!reset)
1035                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1036
1037         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1038                 if (!disable_scofix)
1039                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1040         }
1041
1042         if (id->driver_info & BTUSB_BROKEN_ISOC)
1043                 data->isoc = NULL;
1044
1045         if (id->driver_info & BTUSB_DIGIANSWER) {
1046                 data->cmdreq_type = USB_TYPE_VENDOR;
1047                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1048         }
1049
1050         if (id->driver_info & BTUSB_CSR) {
1051                 struct usb_device *udev = data->udev;
1052
1053                 /* Old firmware would otherwise execute USB reset */
1054                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1055                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1056         }
1057
1058         if (id->driver_info & BTUSB_SNIFFER) {
1059                 struct usb_device *udev = data->udev;
1060
1061                 /* New sniffer firmware has crippled HCI interface */
1062                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1063                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1064
1065                 data->isoc = NULL;
1066         }
1067
1068         if (id->driver_info & BTUSB_BCM92035) {
1069                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1070                 struct sk_buff *skb;
1071
1072                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1073                 if (skb) {
1074                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1075                         skb_queue_tail(&hdev->driver_init, skb);
1076                 }
1077         }
1078
1079         if (data->isoc) {
1080                 err = usb_driver_claim_interface(&btusb_driver,
1081                                                         data->isoc, data);
1082                 if (err < 0) {
1083                         hci_free_dev(hdev);
1084                         return err;
1085                 }
1086         }
1087
1088         err = hci_register_dev(hdev);
1089         if (err < 0) {
1090                 hci_free_dev(hdev);
1091                 return err;
1092         }
1093
1094         usb_set_intfdata(intf, data);
1095
1096         return 0;
1097 }
1098
1099 static void btusb_disconnect(struct usb_interface *intf)
1100 {
1101         struct btusb_data *data = usb_get_intfdata(intf);
1102         struct hci_dev *hdev;
1103
1104         BT_DBG("intf %p", intf);
1105
1106         if (!data)
1107                 return;
1108
1109         hdev = data->hdev;
1110         usb_set_intfdata(data->intf, NULL);
1111
1112         if (data->isoc)
1113                 usb_set_intfdata(data->isoc, NULL);
1114
1115         hci_unregister_dev(hdev);
1116
1117         if (intf == data->isoc)
1118                 usb_driver_release_interface(&btusb_driver, data->intf);
1119         else if (data->isoc)
1120                 usb_driver_release_interface(&btusb_driver, data->isoc);
1121
1122         hci_free_dev(hdev);
1123 }
1124
1125 #ifdef CONFIG_PM
1126 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1127 {
1128         struct btusb_data *data = usb_get_intfdata(intf);
1129
1130         BT_DBG("intf %p", intf);
1131
1132         if (data->suspend_count++)
1133                 return 0;
1134
1135         spin_lock_irq(&data->txlock);
1136         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1137                 set_bit(BTUSB_SUSPENDING, &data->flags);
1138                 spin_unlock_irq(&data->txlock);
1139         } else {
1140                 spin_unlock_irq(&data->txlock);
1141                 data->suspend_count--;
1142                 return -EBUSY;
1143         }
1144
1145         cancel_work_sync(&data->work);
1146
1147         btusb_stop_traffic(data);
1148         usb_kill_anchored_urbs(&data->tx_anchor);
1149
1150         return 0;
1151 }
1152
1153 static void play_deferred(struct btusb_data *data)
1154 {
1155         struct urb *urb;
1156         int err;
1157
1158         while ((urb = usb_get_from_anchor(&data->deferred))) {
1159                 err = usb_submit_urb(urb, GFP_ATOMIC);
1160                 if (err < 0)
1161                         break;
1162
1163                 data->tx_in_flight++;
1164         }
1165         usb_scuttle_anchored_urbs(&data->deferred);
1166 }
1167
1168 static int btusb_resume(struct usb_interface *intf)
1169 {
1170         struct btusb_data *data = usb_get_intfdata(intf);
1171         struct hci_dev *hdev = data->hdev;
1172         int err = 0;
1173
1174         BT_DBG("intf %p", intf);
1175
1176         if (--data->suspend_count)
1177                 return 0;
1178
1179         if (!test_bit(HCI_RUNNING, &hdev->flags))
1180                 goto done;
1181
1182         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1183                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1184                 if (err < 0) {
1185                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1186                         goto failed;
1187                 }
1188         }
1189
1190         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1191                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1192                 if (err < 0) {
1193                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1194                         goto failed;
1195                 }
1196
1197                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1198         }
1199
1200         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1201                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1202                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1203                 else
1204                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1205         }
1206
1207         spin_lock_irq(&data->txlock);
1208         play_deferred(data);
1209         clear_bit(BTUSB_SUSPENDING, &data->flags);
1210         spin_unlock_irq(&data->txlock);
1211         schedule_work(&data->work);
1212
1213         return 0;
1214
1215 failed:
1216         usb_scuttle_anchored_urbs(&data->deferred);
1217 done:
1218         spin_lock_irq(&data->txlock);
1219         clear_bit(BTUSB_SUSPENDING, &data->flags);
1220         spin_unlock_irq(&data->txlock);
1221
1222         return err;
1223 }
1224 #endif
1225
1226 static struct usb_driver btusb_driver = {
1227         .name           = "btusb",
1228         .probe          = btusb_probe,
1229         .disconnect     = btusb_disconnect,
1230 #ifdef CONFIG_PM
1231         .suspend        = btusb_suspend,
1232         .resume         = btusb_resume,
1233 #endif
1234         .id_table       = btusb_table,
1235         .supports_autosuspend = 1,
1236         .disable_hub_initiated_lpm = 1,
1237 };
1238
1239 module_usb_driver(btusb_driver);
1240
1241 module_param(ignore_dga, bool, 0644);
1242 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1243
1244 module_param(ignore_csr, bool, 0644);
1245 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1246
1247 module_param(ignore_sniffer, bool, 0644);
1248 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1249
1250 module_param(disable_scofix, bool, 0644);
1251 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1252
1253 module_param(force_scofix, bool, 0644);
1254 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1255
1256 module_param(reset, bool, 0644);
1257 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1258
1259 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1260 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1261 MODULE_VERSION(VERSION);
1262 MODULE_LICENSE("GPL");