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