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