drivers/bluetooth/btusb.c

   1 /*
   2  *
   3  *  Generic Bluetooth USB driver
   4  *
   5  *  Copyright (C) 2005-2008  Marcel Holtmann <marcel@holtmann.org>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/module.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/errno.h>
  31 #include <linux/skbuff.h>
  32
  33 #include <linux/usb.h>
  34
  35 #include <net/bluetooth/bluetooth.h>
  36 #include <net/bluetooth/hci_core.h>
  37
  38 #define VERSION "0.6"
  39
  40 static int ignore_dga;
  41 static int ignore_csr;
  42 static int ignore_sniffer;
  43 static int disable_scofix;
  44 static int force_scofix;
  45
  46 static int reset = 1;
  47
  48 static struct usb_driver btusb_driver;
  49
  50 #define BTUSB_IGNORE            0x01
  51 #define BTUSB_DIGIANSWER        0x02
  52 #define BTUSB_CSR               0x04
  53 #define BTUSB_SNIFFER           0x08
  54 #define BTUSB_BCM92035          0x10
  55 #define BTUSB_BROKEN_ISOC       0x20
  56 #define BTUSB_WRONG_SCO_MTU     0x40
  57 #define BTUSB_ATH3012           0x80
  58
  59 static struct usb_device_id btusb_table[] = {
  60         /* Generic Bluetooth USB device */
  61         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  62
  63         /* Apple-specific (Broadcom) devices */
  64         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
  65
  66         /* Broadcom SoftSailing reporting vendor specific */
  67         { USB_DEVICE(0x0a5c, 0x21e1) },
  68
  69         /* Apple MacBookPro 7,1 */
  70         { USB_DEVICE(0x05ac, 0x8213) },
  71
  72         /* Apple iMac11,1 */
  73         { USB_DEVICE(0x05ac, 0x8215) },
  74
  75         /* Apple MacBookPro6,2 */
  76         { USB_DEVICE(0x05ac, 0x8218) },
  77
  78         /* Apple MacBookAir3,1, MacBookAir3,2 */
  79         { USB_DEVICE(0x05ac, 0x821b) },
  80
  81         /* Apple MacBookAir4,1 */
  82         { USB_DEVICE(0x05ac, 0x821f) },
  83
  84         /* Apple MacBookPro8,2 */
  85         { USB_DEVICE(0x05ac, 0x821a) },
  86
  87         /* Apple MacMini5,1 */
  88         { USB_DEVICE(0x05ac, 0x8281) },
  89
  90         /* AVM BlueFRITZ! USB v2.0 */
  91         { USB_DEVICE(0x057c, 0x3800) },
  92
  93         /* Bluetooth Ultraport Module from IBM */
  94         { USB_DEVICE(0x04bf, 0x030a) },
  95
  96         /* ALPS Modules with non-standard id */
  97         { USB_DEVICE(0x044e, 0x3001) },
  98         { USB_DEVICE(0x044e, 0x3002) },
  99
 100         /* Ericsson with non-standard id */
 101         { USB_DEVICE(0x0bdb, 0x1002) },
 102
 103         /* Canyon CN-BTU1 with HID interfaces */
 104         { USB_DEVICE(0x0c10, 0x0000) },
 105
 106         /* Broadcom BCM20702A0 */
 107         { USB_DEVICE(0x0b05, 0x17b5) },
 108         { USB_DEVICE(0x04ca, 0x2003) },
 109         { USB_DEVICE(0x0489, 0xe042) },
 110         { USB_DEVICE(0x413c, 0x8197) },
 111
 112         /* Foxconn - Hon Hai */
 113         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 114
 115         /*Broadcom devices with vendor specific id */
 116         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 117
 118         { }     /* Terminating entry */
 119 };
 120
 121 MODULE_DEVICE_TABLE(usb, btusb_table);
 122
 123 static struct usb_device_id blacklist_table[] = {
 124         /* CSR BlueCore devices */
 125         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 126
 127         /* Broadcom BCM2033 without firmware */
 128         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 129
 130         /* Atheros 3011 with sflash firmware */
 131         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 132         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 133         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 134         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 135         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 136         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 137
 138         /* Atheros AR9285 Malbec with sflash firmware */
 139         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 140
 141         /* Atheros 3012 with sflash firmware */
 142         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 152
 153         /* Atheros AR5BBU12 with sflash firmware */
 154         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 155
 156         /* Atheros AR5BBU12 with sflash firmware */
 157         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 159
 160         /* Broadcom BCM2035 */
 161         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 162         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 163         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 164
 165         /* Broadcom BCM2045 */
 166         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 167         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 168
 169         /* IBM/Lenovo ThinkPad with Broadcom chip */
 170         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 171         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 172
 173         /* HP laptop with Broadcom chip */
 174         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 175
 176         /* Dell laptop with Broadcom chip */
 177         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 178
 179         /* Dell Wireless 370 and 410 devices */
 180         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 181         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 182
 183         /* Belkin F8T012 and F8T013 devices */
 184         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 185         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 186
 187         /* Asus WL-BTD202 device */
 188         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 189
 190         /* Kensington Bluetooth USB adapter */
 191         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 192
 193         /* RTX Telecom based adapters with buggy SCO support */
 194         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 195         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 196
 197         /* CONWISE Technology based adapters with buggy SCO support */
 198         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 199
 200         /* Digianswer devices */
 201         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 202         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 203
 204         /* CSR BlueCore Bluetooth Sniffer */
 205         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 206
 207         /* Frontline ComProbe Bluetooth Sniffer */
 208         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 209
 210         { }     /* Terminating entry */
 211 };
 212
 213 #define BTUSB_MAX_ISOC_FRAMES   10
 214
 215 #define BTUSB_INTR_RUNNING      0
 216 #define BTUSB_BULK_RUNNING      1
 217 #define BTUSB_ISOC_RUNNING      2
 218 #define BTUSB_SUSPENDING        3
 219 #define BTUSB_DID_ISO_RESUME    4
 220
 221 struct btusb_data {
 222         struct hci_dev       *hdev;
 223         struct usb_device    *udev;
 224         struct usb_interface *intf;
 225         struct usb_interface *isoc;
 226
 227         spinlock_t lock;
 228
 229         unsigned long flags;
 230
 231         struct work_struct work;
 232         struct work_struct waker;
 233
 234         struct usb_anchor tx_anchor;
 235         struct usb_anchor intr_anchor;
 236         struct usb_anchor bulk_anchor;
 237         struct usb_anchor isoc_anchor;
 238         struct usb_anchor deferred;
 239         int tx_in_flight;
 240         spinlock_t txlock;
 241
 242         struct usb_endpoint_descriptor *intr_ep;
 243         struct usb_endpoint_descriptor *bulk_tx_ep;
 244         struct usb_endpoint_descriptor *bulk_rx_ep;
 245         struct usb_endpoint_descriptor *isoc_tx_ep;
 246         struct usb_endpoint_descriptor *isoc_rx_ep;
 247
 248         __u8 cmdreq_type;
 249
 250         unsigned int sco_num;
 251         int isoc_altsetting;
 252         int suspend_count;
 253 };
 254
 255 static int inc_tx(struct btusb_data *data)
 256 {
 257         unsigned long flags;
 258         int rv;
 259
 260         spin_lock_irqsave(&data->txlock, flags);
 261         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 262         if (!rv)
 263                 data->tx_in_flight++;
 264         spin_unlock_irqrestore(&data->txlock, flags);
 265
 266         return rv;
 267 }
 268
 269 static void btusb_intr_complete(struct urb *urb)
 270 {
 271         struct hci_dev *hdev = urb->context;
 272         struct btusb_data *data = hdev->driver_data;
 273         int err;
 274
 275         BT_DBG("%s urb %p status %d count %d", hdev->name,
 276                                         urb, urb->status, urb->actual_length);
 277
 278         if (!test_bit(HCI_RUNNING, &hdev->flags))
 279                 return;
 280
 281         if (urb->status == 0) {
 282                 hdev->stat.byte_rx += urb->actual_length;
 283
 284                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 285                                                 urb->transfer_buffer,
 286                                                 urb->actual_length) < 0) {
 287                         BT_ERR("%s corrupted event packet", hdev->name);
 288                         hdev->stat.err_rx++;
 289                 }
 290         }
 291
 292         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 293                 return;
 294
 295         usb_mark_last_busy(data->udev);
 296         usb_anchor_urb(urb, &data->intr_anchor);
 297
 298         err = usb_submit_urb(urb, GFP_ATOMIC);
 299         if (err < 0) {
 300                 /* -EPERM: urb is being killed;
 301                  * -ENODEV: device got disconnected */
 302                 if (err != -EPERM && err != -ENODEV)
 303                         BT_ERR("%s urb %p failed to resubmit (%d)",
 304                                                 hdev->name, urb, -err);
 305                 usb_unanchor_urb(urb);
 306         }
 307 }
 308
 309 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 310 {
 311         struct btusb_data *data = hdev->driver_data;
 312         struct urb *urb;
 313         unsigned char *buf;
 314         unsigned int pipe;
 315         int err, size;
 316
 317         BT_DBG("%s", hdev->name);
 318
 319         if (!data->intr_ep)
 320                 return -ENODEV;
 321
 322         urb = usb_alloc_urb(0, mem_flags);
 323         if (!urb)
 324                 return -ENOMEM;
 325
 326         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 327
 328         buf = kmalloc(size, mem_flags);
 329         if (!buf) {
 330                 usb_free_urb(urb);
 331                 return -ENOMEM;
 332         }
 333
 334         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 335
 336         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 337                                                 btusb_intr_complete, hdev,
 338                                                 data->intr_ep->bInterval);
 339
 340         urb->transfer_flags |= URB_FREE_BUFFER;
 341
 342         usb_anchor_urb(urb, &data->intr_anchor);
 343
 344         err = usb_submit_urb(urb, mem_flags);
 345         if (err < 0) {
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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                 BT_ERR("%s urb %p submission failed (%d)",
 432                                                 hdev->name, urb, -err);
 433                 usb_unanchor_urb(urb);
 434         }
 435
 436         usb_free_urb(urb);
 437
 438         return err;
 439 }
 440
 441 static void btusb_isoc_complete(struct urb *urb)
 442 {
 443         struct hci_dev *hdev = urb->context;
 444         struct btusb_data *data = hdev->driver_data;
 445         int i, err;
 446
 447         BT_DBG("%s urb %p status %d count %d", hdev->name,
 448                                         urb, urb->status, urb->actual_length);
 449
 450         if (!test_bit(HCI_RUNNING, &hdev->flags))
 451                 return;
 452
 453         if (urb->status == 0) {
 454                 for (i = 0; i < urb->number_of_packets; i++) {
 455                         unsigned int offset = urb->iso_frame_desc[i].offset;
 456                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 457
 458                         if (urb->iso_frame_desc[i].status)
 459                                 continue;
 460
 461                         hdev->stat.byte_rx += length;
 462
 463                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 464                                                 urb->transfer_buffer + offset,
 465                                                                 length) < 0) {
 466                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 467                                 hdev->stat.err_rx++;
 468                         }
 469                 }
 470         }
 471
 472         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 473                 return;
 474
 475         usb_anchor_urb(urb, &data->isoc_anchor);
 476
 477         err = usb_submit_urb(urb, GFP_ATOMIC);
 478         if (err < 0) {
 479                 /* -EPERM: urb is being killed;
 480                  * -ENODEV: device got disconnected */
 481                 if (err != -EPERM && err != -ENODEV)
 482                         BT_ERR("%s urb %p failed to resubmit (%d)",
 483                                                 hdev->name, urb, -err);
 484                 usb_unanchor_urb(urb);
 485         }
 486 }
 487
 488 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 489 {
 490         int i, offset = 0;
 491
 492         BT_DBG("len %d mtu %d", len, mtu);
 493
 494         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 495                                         i++, offset += mtu, len -= mtu) {
 496                 urb->iso_frame_desc[i].offset = offset;
 497                 urb->iso_frame_desc[i].length = mtu;
 498         }
 499
 500         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 501                 urb->iso_frame_desc[i].offset = offset;
 502                 urb->iso_frame_desc[i].length = len;
 503                 i++;
 504         }
 505
 506         urb->number_of_packets = i;
 507 }
 508
 509 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 510 {
 511         struct btusb_data *data = hdev->driver_data;
 512         struct urb *urb;
 513         unsigned char *buf;
 514         unsigned int pipe;
 515         int err, size;
 516
 517         BT_DBG("%s", hdev->name);
 518
 519         if (!data->isoc_rx_ep)
 520                 return -ENODEV;
 521
 522         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 523         if (!urb)
 524                 return -ENOMEM;
 525
 526         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 527                                                 BTUSB_MAX_ISOC_FRAMES;
 528
 529         buf = kmalloc(size, mem_flags);
 530         if (!buf) {
 531                 usb_free_urb(urb);
 532                 return -ENOMEM;
 533         }
 534
 535         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 536
 537         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 538                                 hdev, data->isoc_rx_ep->bInterval);
 539
 540         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 541
 542         __fill_isoc_descriptor(urb, size,
 543                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 544
 545         usb_anchor_urb(urb, &data->isoc_anchor);
 546
 547         err = usb_submit_urb(urb, mem_flags);
 548         if (err < 0) {
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 797                 kfree(urb->setup_packet);
 798                 usb_unanchor_urb(urb);
 799         } else {
 800                 usb_mark_last_busy(data->udev);
 801         }
 802
 803 done:
 804         usb_free_urb(urb);
 805         return err;
 806 }
 807
 808 static void btusb_destruct(struct hci_dev *hdev)
 809 {
 810         struct btusb_data *data = hdev->driver_data;
 811
 812         BT_DBG("%s", hdev->name);
 813
 814         kfree(data);
 815 }
 816
 817 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 818 {
 819         struct btusb_data *data = hdev->driver_data;
 820
 821         BT_DBG("%s evt %d", hdev->name, evt);
 822
 823         if (hdev->conn_hash.sco_num != data->sco_num) {
 824                 data->sco_num = hdev->conn_hash.sco_num;
 825                 schedule_work(&data->work);
 826         }
 827 }
 828
 829 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 830 {
 831         struct btusb_data *data = hdev->driver_data;
 832         struct usb_interface *intf = data->isoc;
 833         struct usb_endpoint_descriptor *ep_desc;
 834         int i, err;
 835
 836         if (!data->isoc)
 837                 return -ENODEV;
 838
 839         err = usb_set_interface(data->udev, 1, altsetting);
 840         if (err < 0) {
 841                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 842                 return err;
 843         }
 844
 845         data->isoc_altsetting = altsetting;
 846
 847         data->isoc_tx_ep = NULL;
 848         data->isoc_rx_ep = NULL;
 849
 850         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 851                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 852
 853                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 854                         data->isoc_tx_ep = ep_desc;
 855                         continue;
 856                 }
 857
 858                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 859                         data->isoc_rx_ep = ep_desc;
 860                         continue;
 861                 }
 862         }
 863
 864         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 865                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 866                 return -ENODEV;
 867         }
 868
 869         return 0;
 870 }
 871
 872 static void btusb_work(struct work_struct *work)
 873 {
 874         struct btusb_data *data = container_of(work, struct btusb_data, work);
 875         struct hci_dev *hdev = data->hdev;
 876         int err;
 877
 878         if (hdev->conn_hash.sco_num > 0) {
 879                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 880                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 881                         if (err < 0) {
 882                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 883                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 884                                 return;
 885                         }
 886
 887                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 888                 }
 889                 if (data->isoc_altsetting != 2) {
 890                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 891                         usb_kill_anchored_urbs(&data->isoc_anchor);
 892
 893                         if (__set_isoc_interface(hdev, 2) < 0)
 894                                 return;
 895                 }
 896
 897                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 898                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 899                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 900                         else
 901                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 902                 }
 903         } else {
 904                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 905                 usb_kill_anchored_urbs(&data->isoc_anchor);
 906
 907                 __set_isoc_interface(hdev, 0);
 908                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 909                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 910         }
 911 }
 912
 913 static void btusb_waker(struct work_struct *work)
 914 {
 915         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 916         int err;
 917
 918         err = usb_autopm_get_interface(data->intf);
 919         if (err < 0)
 920                 return;
 921
 922         usb_autopm_put_interface(data->intf);
 923 }
 924
 925 static int btusb_probe(struct usb_interface *intf,
 926                                 const struct usb_device_id *id)
 927 {
 928         struct usb_endpoint_descriptor *ep_desc;
 929         struct btusb_data *data;
 930         struct hci_dev *hdev;
 931         int i, err;
 932
 933         BT_DBG("intf %p id %p", intf, id);
 934
 935         /* interface numbers are hardcoded in the spec */
 936         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 937                 return -ENODEV;
 938
 939         if (!id->driver_info) {
 940                 const struct usb_device_id *match;
 941                 match = usb_match_id(intf, blacklist_table);
 942                 if (match)
 943                         id = match;
 944         }
 945
 946         if (id->driver_info == BTUSB_IGNORE)
 947                 return -ENODEV;
 948
 949         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 950                 return -ENODEV;
 951
 952         if (ignore_csr && id->driver_info & BTUSB_CSR)
 953                 return -ENODEV;
 954
 955         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 956                 return -ENODEV;
 957
 958         if (id->driver_info & BTUSB_ATH3012) {
 959                 struct usb_device *udev = interface_to_usbdev(intf);
 960
 961                 /* Old firmware would otherwise let ath3k driver load
 962                  * patch and sysconfig files */
 963                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 964                         return -ENODEV;
 965         }
 966
 967         data = kzalloc(sizeof(*data), GFP_KERNEL);
 968         if (!data)
 969                 return -ENOMEM;
 970
 971         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 972                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 973
 974                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 975                         data->intr_ep = ep_desc;
 976                         continue;
 977                 }
 978
 979                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 980                         data->bulk_tx_ep = ep_desc;
 981                         continue;
 982                 }
 983
 984                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 985                         data->bulk_rx_ep = ep_desc;
 986                         continue;
 987                 }
 988         }
 989
 990         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 991                 kfree(data);
 992                 return -ENODEV;
 993         }
 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                 kfree(data);
1015                 return -ENOMEM;
1016         }
1017
1018         hdev->bus = HCI_USB;
1019         hdev->driver_data = 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->destruct = btusb_destruct;
1030         hdev->notify   = btusb_notify;
1031
1032         hdev->owner = THIS_MODULE;
1033
1034         /* Interface numbers are hardcoded in the specification */
1035         data->isoc = usb_ifnum_to_if(data->udev, 1);
1036
1037         if (!reset)
1038                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1039
1040         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1041                 if (!disable_scofix)
1042                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1043         }
1044
1045         if (id->driver_info & BTUSB_BROKEN_ISOC)
1046                 data->isoc = NULL;
1047
1048         if (id->driver_info & BTUSB_DIGIANSWER) {
1049                 data->cmdreq_type = USB_TYPE_VENDOR;
1050                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1051         }
1052
1053         if (id->driver_info & BTUSB_CSR) {
1054                 struct usb_device *udev = data->udev;
1055
1056                 /* Old firmware would otherwise execute USB reset */
1057                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1058                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1059         }
1060
1061         if (id->driver_info & BTUSB_SNIFFER) {
1062                 struct usb_device *udev = data->udev;
1063
1064                 /* New sniffer firmware has crippled HCI interface */
1065                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1066                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1067
1068                 data->isoc = NULL;
1069         }
1070
1071         if (id->driver_info & BTUSB_BCM92035) {
1072                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1073                 struct sk_buff *skb;
1074
1075                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1076                 if (skb) {
1077                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1078                         skb_queue_tail(&hdev->driver_init, skb);
1079                 }
1080         }
1081
1082         if (data->isoc) {
1083                 err = usb_driver_claim_interface(&btusb_driver,
1084                                                         data->isoc, data);
1085                 if (err < 0) {
1086                         hci_free_dev(hdev);
1087                         kfree(data);
1088                         return err;
1089                 }
1090         }
1091
1092         err = hci_register_dev(hdev);
1093         if (err < 0) {
1094                 hci_free_dev(hdev);
1095                 kfree(data);
1096                 return err;
1097         }
1098
1099         usb_set_intfdata(intf, data);
1100
1101         return 0;
1102 }
1103
1104 static void btusb_disconnect(struct usb_interface *intf)
1105 {
1106         struct btusb_data *data = usb_get_intfdata(intf);
1107         struct hci_dev *hdev;
1108
1109         BT_DBG("intf %p", intf);
1110
1111         if (!data)
1112                 return;
1113
1114         hdev = data->hdev;
1115
1116         __hci_dev_hold(hdev);
1117
1118         usb_set_intfdata(data->intf, NULL);
1119
1120         if (data->isoc)
1121                 usb_set_intfdata(data->isoc, NULL);
1122
1123         hci_unregister_dev(hdev);
1124
1125         if (intf == data->isoc)
1126                 usb_driver_release_interface(&btusb_driver, data->intf);
1127         else if (data->isoc)
1128                 usb_driver_release_interface(&btusb_driver, data->isoc);
1129
1130         __hci_dev_put(hdev);
1131
1132         hci_free_dev(hdev);
1133 }
1134
1135 #ifdef CONFIG_PM
1136 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1137 {
1138         struct btusb_data *data = usb_get_intfdata(intf);
1139
1140         BT_DBG("intf %p", intf);
1141
1142         if (data->suspend_count++)
1143                 return 0;
1144
1145         spin_lock_irq(&data->txlock);
1146         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1147                 set_bit(BTUSB_SUSPENDING, &data->flags);
1148                 spin_unlock_irq(&data->txlock);
1149         } else {
1150                 spin_unlock_irq(&data->txlock);
1151                 data->suspend_count--;
1152                 return -EBUSY;
1153         }
1154
1155         cancel_work_sync(&data->work);
1156
1157         btusb_stop_traffic(data);
1158         usb_kill_anchored_urbs(&data->tx_anchor);
1159
1160         return 0;
1161 }
1162
1163 static void play_deferred(struct btusb_data *data)
1164 {
1165         struct urb *urb;
1166         int err;
1167
1168         while ((urb = usb_get_from_anchor(&data->deferred))) {
1169                 err = usb_submit_urb(urb, GFP_ATOMIC);
1170                 if (err < 0)
1171                         break;
1172
1173                 data->tx_in_flight++;
1174         }
1175         usb_scuttle_anchored_urbs(&data->deferred);
1176 }
1177
1178 static int btusb_resume(struct usb_interface *intf)
1179 {
1180         struct btusb_data *data = usb_get_intfdata(intf);
1181         struct hci_dev *hdev = data->hdev;
1182         int err = 0;
1183
1184         BT_DBG("intf %p", intf);
1185
1186         if (--data->suspend_count)
1187                 return 0;
1188
1189         if (!test_bit(HCI_RUNNING, &hdev->flags))
1190                 goto done;
1191
1192         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1193                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1194                 if (err < 0) {
1195                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1196                         goto failed;
1197                 }
1198         }
1199
1200         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1201                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1202                 if (err < 0) {
1203                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1204                         goto failed;
1205                 }
1206
1207                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1208         }
1209
1210         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1211                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1212                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1213                 else
1214                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1215         }
1216
1217         spin_lock_irq(&data->txlock);
1218         play_deferred(data);
1219         clear_bit(BTUSB_SUSPENDING, &data->flags);
1220         spin_unlock_irq(&data->txlock);
1221         schedule_work(&data->work);
1222
1223         return 0;
1224
1225 failed:
1226         usb_scuttle_anchored_urbs(&data->deferred);
1227 done:
1228         spin_lock_irq(&data->txlock);
1229         clear_bit(BTUSB_SUSPENDING, &data->flags);
1230         spin_unlock_irq(&data->txlock);
1231
1232         return err;
1233 }
1234 #endif
1235
1236 static struct usb_driver btusb_driver = {
1237         .name           = "btusb",
1238         .probe          = btusb_probe,
1239         .disconnect     = btusb_disconnect,
1240 #ifdef CONFIG_PM
1241         .suspend        = btusb_suspend,
1242         .resume         = btusb_resume,
1243 #endif
1244         .id_table       = btusb_table,
1245         .supports_autosuspend = 1,
1246 };
1247
1248 static int __init btusb_init(void)
1249 {
1250         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1251
1252         return usb_register(&btusb_driver);
1253 }
1254
1255 static void __exit btusb_exit(void)
1256 {
1257         usb_deregister(&btusb_driver);
1258 }
1259
1260 module_init(btusb_init);
1261 module_exit(btusb_exit);
1262
1263 module_param(ignore_dga, bool, 0644);
1264 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1265
1266 module_param(ignore_csr, bool, 0644);
1267 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1268
1269 module_param(ignore_sniffer, bool, 0644);
1270 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1271
1272 module_param(disable_scofix, bool, 0644);
1273 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1274
1275 module_param(force_scofix, bool, 0644);
1276 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1277
1278 module_param(reset, bool, 0644);
1279 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1280
1281 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1282 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1283 MODULE_VERSION(VERSION);
1284 MODULE_LICENSE("GPL");