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(0x04ca, 0x2003) },
 108         { USB_DEVICE(0x0489, 0xe042) },
 109         { USB_DEVICE(0x413c, 0x8197) },
 110
 111         /* Foxconn - Hon Hai */
 112         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 113
 114         /*Broadcom devices with vendor specific id */
 115         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 116
 117         { }     /* Terminating entry */
 118 };
 119
 120 MODULE_DEVICE_TABLE(usb, btusb_table);
 121
 122 static struct usb_device_id blacklist_table[] = {
 123         /* CSR BlueCore devices */
 124         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 125
 126         /* Broadcom BCM2033 without firmware */
 127         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 128
 129         /* Atheros 3011 with sflash firmware */
 130         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 131         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 132         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 133         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 134         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 135         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 136
 137         /* Atheros AR9285 Malbec with sflash firmware */
 138         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 139
 140         /* Atheros 3012 with sflash firmware */
 141         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 149
 150         /* Atheros AR5BBU12 with sflash firmware */
 151         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 152
 153         /* Atheros AR5BBU12 with sflash firmware */
 154         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 156
 157         /* Broadcom BCM2035 */
 158         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 159         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 160         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 161
 162         /* Broadcom BCM2045 */
 163         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 164         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 165
 166         /* IBM/Lenovo ThinkPad with Broadcom chip */
 167         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 168         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 169
 170         /* HP laptop with Broadcom chip */
 171         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 172
 173         /* Dell laptop with Broadcom chip */
 174         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 175
 176         /* Dell Wireless 370 and 410 devices */
 177         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 178         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 179
 180         /* Belkin F8T012 and F8T013 devices */
 181         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 182         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 183
 184         /* Asus WL-BTD202 device */
 185         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 186
 187         /* Kensington Bluetooth USB adapter */
 188         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 189
 190         /* RTX Telecom based adapters with buggy SCO support */
 191         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 192         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 193
 194         /* CONWISE Technology based adapters with buggy SCO support */
 195         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 196
 197         /* Digianswer devices */
 198         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 199         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 200
 201         /* CSR BlueCore Bluetooth Sniffer */
 202         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 203
 204         /* Frontline ComProbe Bluetooth Sniffer */
 205         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 206
 207         { }     /* Terminating entry */
 208 };
 209
 210 #define BTUSB_MAX_ISOC_FRAMES   10
 211
 212 #define BTUSB_INTR_RUNNING      0
 213 #define BTUSB_BULK_RUNNING      1
 214 #define BTUSB_ISOC_RUNNING      2
 215 #define BTUSB_SUSPENDING        3
 216 #define BTUSB_DID_ISO_RESUME    4
 217
 218 struct btusb_data {
 219         struct hci_dev       *hdev;
 220         struct usb_device    *udev;
 221         struct usb_interface *intf;
 222         struct usb_interface *isoc;
 223
 224         spinlock_t lock;
 225
 226         unsigned long flags;
 227
 228         struct work_struct work;
 229         struct work_struct waker;
 230
 231         struct usb_anchor tx_anchor;
 232         struct usb_anchor intr_anchor;
 233         struct usb_anchor bulk_anchor;
 234         struct usb_anchor isoc_anchor;
 235         struct usb_anchor deferred;
 236         int tx_in_flight;
 237         spinlock_t txlock;
 238
 239         struct usb_endpoint_descriptor *intr_ep;
 240         struct usb_endpoint_descriptor *bulk_tx_ep;
 241         struct usb_endpoint_descriptor *bulk_rx_ep;
 242         struct usb_endpoint_descriptor *isoc_tx_ep;
 243         struct usb_endpoint_descriptor *isoc_rx_ep;
 244
 245         __u8 cmdreq_type;
 246
 247         unsigned int sco_num;
 248         int isoc_altsetting;
 249         int suspend_count;
 250 };
 251
 252 static int inc_tx(struct btusb_data *data)
 253 {
 254         unsigned long flags;
 255         int rv;
 256
 257         spin_lock_irqsave(&data->txlock, flags);
 258         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 259         if (!rv)
 260                 data->tx_in_flight++;
 261         spin_unlock_irqrestore(&data->txlock, flags);
 262
 263         return rv;
 264 }
 265
 266 static void btusb_intr_complete(struct urb *urb)
 267 {
 268         struct hci_dev *hdev = urb->context;
 269         struct btusb_data *data = hdev->driver_data;
 270         int err;
 271
 272         BT_DBG("%s urb %p status %d count %d", hdev->name,
 273                                         urb, urb->status, urb->actual_length);
 274
 275         if (!test_bit(HCI_RUNNING, &hdev->flags))
 276                 return;
 277
 278         if (urb->status == 0) {
 279                 hdev->stat.byte_rx += urb->actual_length;
 280
 281                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 282                                                 urb->transfer_buffer,
 283                                                 urb->actual_length) < 0) {
 284                         BT_ERR("%s corrupted event packet", hdev->name);
 285                         hdev->stat.err_rx++;
 286                 }
 287         }
 288
 289         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 290                 return;
 291
 292         usb_mark_last_busy(data->udev);
 293         usb_anchor_urb(urb, &data->intr_anchor);
 294
 295         err = usb_submit_urb(urb, GFP_ATOMIC);
 296         if (err < 0) {
 297                 /* -EPERM: urb is being killed;
 298                  * -ENODEV: device got disconnected */
 299                 if (err != -EPERM && err != -ENODEV)
 300                         BT_ERR("%s urb %p failed to resubmit (%d)",
 301                                                 hdev->name, urb, -err);
 302                 usb_unanchor_urb(urb);
 303         }
 304 }
 305
 306 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 307 {
 308         struct btusb_data *data = hdev->driver_data;
 309         struct urb *urb;
 310         unsigned char *buf;
 311         unsigned int pipe;
 312         int err, size;
 313
 314         BT_DBG("%s", hdev->name);
 315
 316         if (!data->intr_ep)
 317                 return -ENODEV;
 318
 319         urb = usb_alloc_urb(0, mem_flags);
 320         if (!urb)
 321                 return -ENOMEM;
 322
 323         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 324
 325         buf = kmalloc(size, mem_flags);
 326         if (!buf) {
 327                 usb_free_urb(urb);
 328                 return -ENOMEM;
 329         }
 330
 331         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 332
 333         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 334                                                 btusb_intr_complete, hdev,
 335                                                 data->intr_ep->bInterval);
 336
 337         urb->transfer_flags |= URB_FREE_BUFFER;
 338
 339         usb_anchor_urb(urb, &data->intr_anchor);
 340
 341         err = usb_submit_urb(urb, mem_flags);
 342         if (err < 0) {
 343                 BT_ERR("%s urb %p submission failed (%d)",
 344                                                 hdev->name, urb, -err);
 345                 usb_unanchor_urb(urb);
 346         }
 347
 348         usb_free_urb(urb);
 349
 350         return err;
 351 }
 352
 353 static void btusb_bulk_complete(struct urb *urb)
 354 {
 355         struct hci_dev *hdev = urb->context;
 356         struct btusb_data *data = hdev->driver_data;
 357         int err;
 358
 359         BT_DBG("%s urb %p status %d count %d", hdev->name,
 360                                         urb, urb->status, urb->actual_length);
 361
 362         if (!test_bit(HCI_RUNNING, &hdev->flags))
 363                 return;
 364
 365         if (urb->status == 0) {
 366                 hdev->stat.byte_rx += urb->actual_length;
 367
 368                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 369                                                 urb->transfer_buffer,
 370                                                 urb->actual_length) < 0) {
 371                         BT_ERR("%s corrupted ACL packet", hdev->name);
 372                         hdev->stat.err_rx++;
 373                 }
 374         }
 375
 376         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 377                 return;
 378
 379         usb_anchor_urb(urb, &data->bulk_anchor);
 380         usb_mark_last_busy(data->udev);
 381
 382         err = usb_submit_urb(urb, GFP_ATOMIC);
 383         if (err < 0) {
 384                 /* -EPERM: urb is being killed;
 385                  * -ENODEV: device got disconnected */
 386                 if (err != -EPERM && err != -ENODEV)
 387                         BT_ERR("%s urb %p failed to resubmit (%d)",
 388                                                 hdev->name, urb, -err);
 389                 usb_unanchor_urb(urb);
 390         }
 391 }
 392
 393 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 394 {
 395         struct btusb_data *data = hdev->driver_data;
 396         struct urb *urb;
 397         unsigned char *buf;
 398         unsigned int pipe;
 399         int err, size = HCI_MAX_FRAME_SIZE;
 400
 401         BT_DBG("%s", hdev->name);
 402
 403         if (!data->bulk_rx_ep)
 404                 return -ENODEV;
 405
 406         urb = usb_alloc_urb(0, mem_flags);
 407         if (!urb)
 408                 return -ENOMEM;
 409
 410         buf = kmalloc(size, mem_flags);
 411         if (!buf) {
 412                 usb_free_urb(urb);
 413                 return -ENOMEM;
 414         }
 415
 416         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 417
 418         usb_fill_bulk_urb(urb, data->udev, pipe,
 419                                         buf, size, btusb_bulk_complete, hdev);
 420
 421         urb->transfer_flags |= URB_FREE_BUFFER;
 422
 423         usb_mark_last_busy(data->udev);
 424         usb_anchor_urb(urb, &data->bulk_anchor);
 425
 426         err = usb_submit_urb(urb, mem_flags);
 427         if (err < 0) {
 428                 BT_ERR("%s urb %p submission failed (%d)",
 429                                                 hdev->name, urb, -err);
 430                 usb_unanchor_urb(urb);
 431         }
 432
 433         usb_free_urb(urb);
 434
 435         return err;
 436 }
 437
 438 static void btusb_isoc_complete(struct urb *urb)
 439 {
 440         struct hci_dev *hdev = urb->context;
 441         struct btusb_data *data = hdev->driver_data;
 442         int i, err;
 443
 444         BT_DBG("%s urb %p status %d count %d", hdev->name,
 445                                         urb, urb->status, urb->actual_length);
 446
 447         if (!test_bit(HCI_RUNNING, &hdev->flags))
 448                 return;
 449
 450         if (urb->status == 0) {
 451                 for (i = 0; i < urb->number_of_packets; i++) {
 452                         unsigned int offset = urb->iso_frame_desc[i].offset;
 453                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 454
 455                         if (urb->iso_frame_desc[i].status)
 456                                 continue;
 457
 458                         hdev->stat.byte_rx += length;
 459
 460                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 461                                                 urb->transfer_buffer + offset,
 462                                                                 length) < 0) {
 463                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 464                                 hdev->stat.err_rx++;
 465                         }
 466                 }
 467         }
 468
 469         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 470                 return;
 471
 472         usb_anchor_urb(urb, &data->isoc_anchor);
 473
 474         err = usb_submit_urb(urb, GFP_ATOMIC);
 475         if (err < 0) {
 476                 /* -EPERM: urb is being killed;
 477                  * -ENODEV: device got disconnected */
 478                 if (err != -EPERM && err != -ENODEV)
 479                         BT_ERR("%s urb %p failed to resubmit (%d)",
 480                                                 hdev->name, urb, -err);
 481                 usb_unanchor_urb(urb);
 482         }
 483 }
 484
 485 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 486 {
 487         int i, offset = 0;
 488
 489         BT_DBG("len %d mtu %d", len, mtu);
 490
 491         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 492                                         i++, offset += mtu, len -= mtu) {
 493                 urb->iso_frame_desc[i].offset = offset;
 494                 urb->iso_frame_desc[i].length = mtu;
 495         }
 496
 497         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 498                 urb->iso_frame_desc[i].offset = offset;
 499                 urb->iso_frame_desc[i].length = len;
 500                 i++;
 501         }
 502
 503         urb->number_of_packets = i;
 504 }
 505
 506 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 507 {
 508         struct btusb_data *data = hdev->driver_data;
 509         struct urb *urb;
 510         unsigned char *buf;
 511         unsigned int pipe;
 512         int err, size;
 513
 514         BT_DBG("%s", hdev->name);
 515
 516         if (!data->isoc_rx_ep)
 517                 return -ENODEV;
 518
 519         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 520         if (!urb)
 521                 return -ENOMEM;
 522
 523         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 524                                                 BTUSB_MAX_ISOC_FRAMES;
 525
 526         buf = kmalloc(size, mem_flags);
 527         if (!buf) {
 528                 usb_free_urb(urb);
 529                 return -ENOMEM;
 530         }
 531
 532         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 533
 534         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 535                                 hdev, data->isoc_rx_ep->bInterval);
 536
 537         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 538
 539         __fill_isoc_descriptor(urb, size,
 540                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 541
 542         usb_anchor_urb(urb, &data->isoc_anchor);
 543
 544         err = usb_submit_urb(urb, mem_flags);
 545         if (err < 0) {
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 794                 kfree(urb->setup_packet);
 795                 usb_unanchor_urb(urb);
 796         } else {
 797                 usb_mark_last_busy(data->udev);
 798         }
 799
 800 done:
 801         usb_free_urb(urb);
 802         return err;
 803 }
 804
 805 static void btusb_destruct(struct hci_dev *hdev)
 806 {
 807         struct btusb_data *data = hdev->driver_data;
 808
 809         BT_DBG("%s", hdev->name);
 810
 811         kfree(data);
 812 }
 813
 814 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 815 {
 816         struct btusb_data *data = hdev->driver_data;
 817
 818         BT_DBG("%s evt %d", hdev->name, evt);
 819
 820         if (hdev->conn_hash.sco_num != data->sco_num) {
 821                 data->sco_num = hdev->conn_hash.sco_num;
 822                 schedule_work(&data->work);
 823         }
 824 }
 825
 826 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 827 {
 828         struct btusb_data *data = hdev->driver_data;
 829         struct usb_interface *intf = data->isoc;
 830         struct usb_endpoint_descriptor *ep_desc;
 831         int i, err;
 832
 833         if (!data->isoc)
 834                 return -ENODEV;
 835
 836         err = usb_set_interface(data->udev, 1, altsetting);
 837         if (err < 0) {
 838                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 839                 return err;
 840         }
 841
 842         data->isoc_altsetting = altsetting;
 843
 844         data->isoc_tx_ep = NULL;
 845         data->isoc_rx_ep = NULL;
 846
 847         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 848                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 849
 850                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 851                         data->isoc_tx_ep = ep_desc;
 852                         continue;
 853                 }
 854
 855                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 856                         data->isoc_rx_ep = ep_desc;
 857                         continue;
 858                 }
 859         }
 860
 861         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 862                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 863                 return -ENODEV;
 864         }
 865
 866         return 0;
 867 }
 868
 869 static void btusb_work(struct work_struct *work)
 870 {
 871         struct btusb_data *data = container_of(work, struct btusb_data, work);
 872         struct hci_dev *hdev = data->hdev;
 873         int err;
 874
 875         if (hdev->conn_hash.sco_num > 0) {
 876                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 877                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 878                         if (err < 0) {
 879                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 880                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 881                                 return;
 882                         }
 883
 884                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 885                 }
 886                 if (data->isoc_altsetting != 2) {
 887                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 888                         usb_kill_anchored_urbs(&data->isoc_anchor);
 889
 890                         if (__set_isoc_interface(hdev, 2) < 0)
 891                                 return;
 892                 }
 893
 894                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 895                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 896                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 897                         else
 898                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 899                 }
 900         } else {
 901                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 902                 usb_kill_anchored_urbs(&data->isoc_anchor);
 903
 904                 __set_isoc_interface(hdev, 0);
 905                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 906                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 907         }
 908 }
 909
 910 static void btusb_waker(struct work_struct *work)
 911 {
 912         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 913         int err;
 914
 915         err = usb_autopm_get_interface(data->intf);
 916         if (err < 0)
 917                 return;
 918
 919         usb_autopm_put_interface(data->intf);
 920 }
 921
 922 static int btusb_probe(struct usb_interface *intf,
 923                                 const struct usb_device_id *id)
 924 {
 925         struct usb_endpoint_descriptor *ep_desc;
 926         struct btusb_data *data;
 927         struct hci_dev *hdev;
 928         int i, err;
 929
 930         BT_DBG("intf %p id %p", intf, id);
 931
 932         /* interface numbers are hardcoded in the spec */
 933         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 934                 return -ENODEV;
 935
 936         if (!id->driver_info) {
 937                 const struct usb_device_id *match;
 938                 match = usb_match_id(intf, blacklist_table);
 939                 if (match)
 940                         id = match;
 941         }
 942
 943         if (id->driver_info == BTUSB_IGNORE)
 944                 return -ENODEV;
 945
 946         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 947                 return -ENODEV;
 948
 949         if (ignore_csr && id->driver_info & BTUSB_CSR)
 950                 return -ENODEV;
 951
 952         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 953                 return -ENODEV;
 954
 955         if (id->driver_info & BTUSB_ATH3012) {
 956                 struct usb_device *udev = interface_to_usbdev(intf);
 957
 958                 /* Old firmware would otherwise let ath3k driver load
 959                  * patch and sysconfig files */
 960                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 961                         return -ENODEV;
 962         }
 963
 964         data = kzalloc(sizeof(*data), GFP_KERNEL);
 965         if (!data)
 966                 return -ENOMEM;
 967
 968         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 969                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 970
 971                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 972                         data->intr_ep = ep_desc;
 973                         continue;
 974                 }
 975
 976                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 977                         data->bulk_tx_ep = ep_desc;
 978                         continue;
 979                 }
 980
 981                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 982                         data->bulk_rx_ep = ep_desc;
 983                         continue;
 984                 }
 985         }
 986
 987         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 988                 kfree(data);
 989                 return -ENODEV;
 990         }
 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                 kfree(data);
1012                 return -ENOMEM;
1013         }
1014
1015         hdev->bus = HCI_USB;
1016         hdev->driver_data = data;
1017
1018         data->hdev = hdev;
1019
1020         SET_HCIDEV_DEV(hdev, &intf->dev);
1021
1022         hdev->open     = btusb_open;
1023         hdev->close    = btusb_close;
1024         hdev->flush    = btusb_flush;
1025         hdev->send     = btusb_send_frame;
1026         hdev->destruct = btusb_destruct;
1027         hdev->notify   = btusb_notify;
1028
1029         hdev->owner = THIS_MODULE;
1030
1031         /* Interface numbers are hardcoded in the specification */
1032         data->isoc = usb_ifnum_to_if(data->udev, 1);
1033
1034         if (!reset)
1035                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1036
1037         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1038                 if (!disable_scofix)
1039                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1040         }
1041
1042         if (id->driver_info & BTUSB_BROKEN_ISOC)
1043                 data->isoc = NULL;
1044
1045         if (id->driver_info & BTUSB_DIGIANSWER) {
1046                 data->cmdreq_type = USB_TYPE_VENDOR;
1047                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1048         }
1049
1050         if (id->driver_info & BTUSB_CSR) {
1051                 struct usb_device *udev = data->udev;
1052
1053                 /* Old firmware would otherwise execute USB reset */
1054                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1055                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1056         }
1057
1058         if (id->driver_info & BTUSB_SNIFFER) {
1059                 struct usb_device *udev = data->udev;
1060
1061                 /* New sniffer firmware has crippled HCI interface */
1062                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1063                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1064
1065                 data->isoc = NULL;
1066         }
1067
1068         if (id->driver_info & BTUSB_BCM92035) {
1069                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1070                 struct sk_buff *skb;
1071
1072                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1073                 if (skb) {
1074                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1075                         skb_queue_tail(&hdev->driver_init, skb);
1076                 }
1077         }
1078
1079         if (data->isoc) {
1080                 err = usb_driver_claim_interface(&btusb_driver,
1081                                                         data->isoc, data);
1082                 if (err < 0) {
1083                         hci_free_dev(hdev);
1084                         kfree(data);
1085                         return err;
1086                 }
1087         }
1088
1089         err = hci_register_dev(hdev);
1090         if (err < 0) {
1091                 hci_free_dev(hdev);
1092                 kfree(data);
1093                 return err;
1094         }
1095
1096         usb_set_intfdata(intf, data);
1097
1098         return 0;
1099 }
1100
1101 static void btusb_disconnect(struct usb_interface *intf)
1102 {
1103         struct btusb_data *data = usb_get_intfdata(intf);
1104         struct hci_dev *hdev;
1105
1106         BT_DBG("intf %p", intf);
1107
1108         if (!data)
1109                 return;
1110
1111         hdev = data->hdev;
1112
1113         __hci_dev_hold(hdev);
1114
1115         usb_set_intfdata(data->intf, NULL);
1116
1117         if (data->isoc)
1118                 usb_set_intfdata(data->isoc, NULL);
1119
1120         hci_unregister_dev(hdev);
1121
1122         if (intf == data->isoc)
1123                 usb_driver_release_interface(&btusb_driver, data->intf);
1124         else if (data->isoc)
1125                 usb_driver_release_interface(&btusb_driver, data->isoc);
1126
1127         __hci_dev_put(hdev);
1128
1129         hci_free_dev(hdev);
1130 }
1131
1132 #ifdef CONFIG_PM
1133 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1134 {
1135         struct btusb_data *data = usb_get_intfdata(intf);
1136
1137         BT_DBG("intf %p", intf);
1138
1139         if (data->suspend_count++)
1140                 return 0;
1141
1142         spin_lock_irq(&data->txlock);
1143         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1144                 set_bit(BTUSB_SUSPENDING, &data->flags);
1145                 spin_unlock_irq(&data->txlock);
1146         } else {
1147                 spin_unlock_irq(&data->txlock);
1148                 data->suspend_count--;
1149                 return -EBUSY;
1150         }
1151
1152         cancel_work_sync(&data->work);
1153
1154         btusb_stop_traffic(data);
1155         usb_kill_anchored_urbs(&data->tx_anchor);
1156
1157         return 0;
1158 }
1159
1160 static void play_deferred(struct btusb_data *data)
1161 {
1162         struct urb *urb;
1163         int err;
1164
1165         while ((urb = usb_get_from_anchor(&data->deferred))) {
1166                 err = usb_submit_urb(urb, GFP_ATOMIC);
1167                 if (err < 0)
1168                         break;
1169
1170                 data->tx_in_flight++;
1171         }
1172         usb_scuttle_anchored_urbs(&data->deferred);
1173 }
1174
1175 static int btusb_resume(struct usb_interface *intf)
1176 {
1177         struct btusb_data *data = usb_get_intfdata(intf);
1178         struct hci_dev *hdev = data->hdev;
1179         int err = 0;
1180
1181         BT_DBG("intf %p", intf);
1182
1183         if (--data->suspend_count)
1184                 return 0;
1185
1186         if (!test_bit(HCI_RUNNING, &hdev->flags))
1187                 goto done;
1188
1189         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1190                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1191                 if (err < 0) {
1192                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1193                         goto failed;
1194                 }
1195         }
1196
1197         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1198                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1199                 if (err < 0) {
1200                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1201                         goto failed;
1202                 }
1203
1204                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1205         }
1206
1207         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1208                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1209                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1210                 else
1211                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1212         }
1213
1214         spin_lock_irq(&data->txlock);
1215         play_deferred(data);
1216         clear_bit(BTUSB_SUSPENDING, &data->flags);
1217         spin_unlock_irq(&data->txlock);
1218         schedule_work(&data->work);
1219
1220         return 0;
1221
1222 failed:
1223         usb_scuttle_anchored_urbs(&data->deferred);
1224 done:
1225         spin_lock_irq(&data->txlock);
1226         clear_bit(BTUSB_SUSPENDING, &data->flags);
1227         spin_unlock_irq(&data->txlock);
1228
1229         return err;
1230 }
1231 #endif
1232
1233 static struct usb_driver btusb_driver = {
1234         .name           = "btusb",
1235         .probe          = btusb_probe,
1236         .disconnect     = btusb_disconnect,
1237 #ifdef CONFIG_PM
1238         .suspend        = btusb_suspend,
1239         .resume         = btusb_resume,
1240 #endif
1241         .id_table       = btusb_table,
1242         .supports_autosuspend = 1,
1243 };
1244
1245 static int __init btusb_init(void)
1246 {
1247         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1248
1249         return usb_register(&btusb_driver);
1250 }
1251
1252 static void __exit btusb_exit(void)
1253 {
1254         usb_deregister(&btusb_driver);
1255 }
1256
1257 module_init(btusb_init);
1258 module_exit(btusb_exit);
1259
1260 module_param(ignore_dga, bool, 0644);
1261 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1262
1263 module_param(ignore_csr, bool, 0644);
1264 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1265
1266 module_param(ignore_sniffer, bool, 0644);
1267 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1268
1269 module_param(disable_scofix, bool, 0644);
1270 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1271
1272 module_param(force_scofix, bool, 0644);
1273 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1274
1275 module_param(reset, bool, 0644);
1276 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1277
1278 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1279 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1280 MODULE_VERSION(VERSION);
1281 MODULE_LICENSE("GPL");