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(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 151
 152         /* Atheros AR5BBU12 with sflash firmware */
 153         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 154
 155         /* Atheros AR5BBU12 with sflash firmware */
 156         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 158
 159         /* Broadcom BCM2035 */
 160         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 161         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 162         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 163
 164         /* Broadcom BCM2045 */
 165         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 166         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 167
 168         /* IBM/Lenovo ThinkPad with Broadcom chip */
 169         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 170         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 171
 172         /* HP laptop with Broadcom chip */
 173         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 174
 175         /* Dell laptop with Broadcom chip */
 176         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 177
 178         /* Dell Wireless 370 and 410 devices */
 179         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 180         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 181
 182         /* Belkin F8T012 and F8T013 devices */
 183         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 184         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 185
 186         /* Asus WL-BTD202 device */
 187         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 188
 189         /* Kensington Bluetooth USB adapter */
 190         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 191
 192         /* RTX Telecom based adapters with buggy SCO support */
 193         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 194         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 195
 196         /* CONWISE Technology based adapters with buggy SCO support */
 197         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 198
 199         /* Digianswer devices */
 200         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 201         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 202
 203         /* CSR BlueCore Bluetooth Sniffer */
 204         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 205
 206         /* Frontline ComProbe Bluetooth Sniffer */
 207         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 208
 209         { }     /* Terminating entry */
 210 };
 211
 212 #define BTUSB_MAX_ISOC_FRAMES   10
 213
 214 #define BTUSB_INTR_RUNNING      0
 215 #define BTUSB_BULK_RUNNING      1
 216 #define BTUSB_ISOC_RUNNING      2
 217 #define BTUSB_SUSPENDING        3
 218 #define BTUSB_DID_ISO_RESUME    4
 219
 220 struct btusb_data {
 221         struct hci_dev       *hdev;
 222         struct usb_device    *udev;
 223         struct usb_interface *intf;
 224         struct usb_interface *isoc;
 225
 226         spinlock_t lock;
 227
 228         unsigned long flags;
 229
 230         struct work_struct work;
 231         struct work_struct waker;
 232
 233         struct usb_anchor tx_anchor;
 234         struct usb_anchor intr_anchor;
 235         struct usb_anchor bulk_anchor;
 236         struct usb_anchor isoc_anchor;
 237         struct usb_anchor deferred;
 238         int tx_in_flight;
 239         spinlock_t txlock;
 240
 241         struct usb_endpoint_descriptor *intr_ep;
 242         struct usb_endpoint_descriptor *bulk_tx_ep;
 243         struct usb_endpoint_descriptor *bulk_rx_ep;
 244         struct usb_endpoint_descriptor *isoc_tx_ep;
 245         struct usb_endpoint_descriptor *isoc_rx_ep;
 246
 247         __u8 cmdreq_type;
 248
 249         unsigned int sco_num;
 250         int isoc_altsetting;
 251         int suspend_count;
 252 };
 253
 254 static int inc_tx(struct btusb_data *data)
 255 {
 256         unsigned long flags;
 257         int rv;
 258
 259         spin_lock_irqsave(&data->txlock, flags);
 260         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 261         if (!rv)
 262                 data->tx_in_flight++;
 263         spin_unlock_irqrestore(&data->txlock, flags);
 264
 265         return rv;
 266 }
 267
 268 static void btusb_intr_complete(struct urb *urb)
 269 {
 270         struct hci_dev *hdev = urb->context;
 271         struct btusb_data *data = hdev->driver_data;
 272         int err;
 273
 274         BT_DBG("%s urb %p status %d count %d", hdev->name,
 275                                         urb, urb->status, urb->actual_length);
 276
 277         if (!test_bit(HCI_RUNNING, &hdev->flags))
 278                 return;
 279
 280         if (urb->status == 0) {
 281                 hdev->stat.byte_rx += urb->actual_length;
 282
 283                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 284                                                 urb->transfer_buffer,
 285                                                 urb->actual_length) < 0) {
 286                         BT_ERR("%s corrupted event packet", hdev->name);
 287                         hdev->stat.err_rx++;
 288                 }
 289         }
 290
 291         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 292                 return;
 293
 294         usb_mark_last_busy(data->udev);
 295         usb_anchor_urb(urb, &data->intr_anchor);
 296
 297         err = usb_submit_urb(urb, GFP_ATOMIC);
 298         if (err < 0) {
 299                 /* -EPERM: urb is being killed;
 300                  * -ENODEV: device got disconnected */
 301                 if (err != -EPERM && err != -ENODEV)
 302                         BT_ERR("%s urb %p failed to resubmit (%d)",
 303                                                 hdev->name, urb, -err);
 304                 usb_unanchor_urb(urb);
 305         }
 306 }
 307
 308 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 309 {
 310         struct btusb_data *data = hdev->driver_data;
 311         struct urb *urb;
 312         unsigned char *buf;
 313         unsigned int pipe;
 314         int err, size;
 315
 316         BT_DBG("%s", hdev->name);
 317
 318         if (!data->intr_ep)
 319                 return -ENODEV;
 320
 321         urb = usb_alloc_urb(0, mem_flags);
 322         if (!urb)
 323                 return -ENOMEM;
 324
 325         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 326
 327         buf = kmalloc(size, mem_flags);
 328         if (!buf) {
 329                 usb_free_urb(urb);
 330                 return -ENOMEM;
 331         }
 332
 333         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 334
 335         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 336                                                 btusb_intr_complete, hdev,
 337                                                 data->intr_ep->bInterval);
 338
 339         urb->transfer_flags |= URB_FREE_BUFFER;
 340
 341         usb_anchor_urb(urb, &data->intr_anchor);
 342
 343         err = usb_submit_urb(urb, mem_flags);
 344         if (err < 0) {
 345                 BT_ERR("%s urb %p submission failed (%d)",
 346                                                 hdev->name, urb, -err);
 347                 usb_unanchor_urb(urb);
 348         }
 349
 350         usb_free_urb(urb);
 351
 352         return err;
 353 }
 354
 355 static void btusb_bulk_complete(struct urb *urb)
 356 {
 357         struct hci_dev *hdev = urb->context;
 358         struct btusb_data *data = hdev->driver_data;
 359         int err;
 360
 361         BT_DBG("%s urb %p status %d count %d", hdev->name,
 362                                         urb, urb->status, urb->actual_length);
 363
 364         if (!test_bit(HCI_RUNNING, &hdev->flags))
 365                 return;
 366
 367         if (urb->status == 0) {
 368                 hdev->stat.byte_rx += urb->actual_length;
 369
 370                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 371                                                 urb->transfer_buffer,
 372                                                 urb->actual_length) < 0) {
 373                         BT_ERR("%s corrupted ACL packet", hdev->name);
 374                         hdev->stat.err_rx++;
 375                 }
 376         }
 377
 378         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 379                 return;
 380
 381         usb_anchor_urb(urb, &data->bulk_anchor);
 382         usb_mark_last_busy(data->udev);
 383
 384         err = usb_submit_urb(urb, GFP_ATOMIC);
 385         if (err < 0) {
 386                 /* -EPERM: urb is being killed;
 387                  * -ENODEV: device got disconnected */
 388                 if (err != -EPERM && err != -ENODEV)
 389                         BT_ERR("%s urb %p failed to resubmit (%d)",
 390                                                 hdev->name, urb, -err);
 391                 usb_unanchor_urb(urb);
 392         }
 393 }
 394
 395 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 396 {
 397         struct btusb_data *data = hdev->driver_data;
 398         struct urb *urb;
 399         unsigned char *buf;
 400         unsigned int pipe;
 401         int err, size = HCI_MAX_FRAME_SIZE;
 402
 403         BT_DBG("%s", hdev->name);
 404
 405         if (!data->bulk_rx_ep)
 406                 return -ENODEV;
 407
 408         urb = usb_alloc_urb(0, mem_flags);
 409         if (!urb)
 410                 return -ENOMEM;
 411
 412         buf = kmalloc(size, mem_flags);
 413         if (!buf) {
 414                 usb_free_urb(urb);
 415                 return -ENOMEM;
 416         }
 417
 418         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 419
 420         usb_fill_bulk_urb(urb, data->udev, pipe,
 421                                         buf, size, btusb_bulk_complete, hdev);
 422
 423         urb->transfer_flags |= URB_FREE_BUFFER;
 424
 425         usb_mark_last_busy(data->udev);
 426         usb_anchor_urb(urb, &data->bulk_anchor);
 427
 428         err = usb_submit_urb(urb, mem_flags);
 429         if (err < 0) {
 430                 BT_ERR("%s urb %p submission failed (%d)",
 431                                                 hdev->name, urb, -err);
 432                 usb_unanchor_urb(urb);
 433         }
 434
 435         usb_free_urb(urb);
 436
 437         return err;
 438 }
 439
 440 static void btusb_isoc_complete(struct urb *urb)
 441 {
 442         struct hci_dev *hdev = urb->context;
 443         struct btusb_data *data = hdev->driver_data;
 444         int i, err;
 445
 446         BT_DBG("%s urb %p status %d count %d", hdev->name,
 447                                         urb, urb->status, urb->actual_length);
 448
 449         if (!test_bit(HCI_RUNNING, &hdev->flags))
 450                 return;
 451
 452         if (urb->status == 0) {
 453                 for (i = 0; i < urb->number_of_packets; i++) {
 454                         unsigned int offset = urb->iso_frame_desc[i].offset;
 455                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 456
 457                         if (urb->iso_frame_desc[i].status)
 458                                 continue;
 459
 460                         hdev->stat.byte_rx += length;
 461
 462                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 463                                                 urb->transfer_buffer + offset,
 464                                                                 length) < 0) {
 465                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 466                                 hdev->stat.err_rx++;
 467                         }
 468                 }
 469         }
 470
 471         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 472                 return;
 473
 474         usb_anchor_urb(urb, &data->isoc_anchor);
 475
 476         err = usb_submit_urb(urb, GFP_ATOMIC);
 477         if (err < 0) {
 478                 /* -EPERM: urb is being killed;
 479                  * -ENODEV: device got disconnected */
 480                 if (err != -EPERM && err != -ENODEV)
 481                         BT_ERR("%s urb %p failed to resubmit (%d)",
 482                                                 hdev->name, urb, -err);
 483                 usb_unanchor_urb(urb);
 484         }
 485 }
 486
 487 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 488 {
 489         int i, offset = 0;
 490
 491         BT_DBG("len %d mtu %d", len, mtu);
 492
 493         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 494                                         i++, offset += mtu, len -= mtu) {
 495                 urb->iso_frame_desc[i].offset = offset;
 496                 urb->iso_frame_desc[i].length = mtu;
 497         }
 498
 499         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 500                 urb->iso_frame_desc[i].offset = offset;
 501                 urb->iso_frame_desc[i].length = len;
 502                 i++;
 503         }
 504
 505         urb->number_of_packets = i;
 506 }
 507
 508 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 509 {
 510         struct btusb_data *data = hdev->driver_data;
 511         struct urb *urb;
 512         unsigned char *buf;
 513         unsigned int pipe;
 514         int err, size;
 515
 516         BT_DBG("%s", hdev->name);
 517
 518         if (!data->isoc_rx_ep)
 519                 return -ENODEV;
 520
 521         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 522         if (!urb)
 523                 return -ENOMEM;
 524
 525         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 526                                                 BTUSB_MAX_ISOC_FRAMES;
 527
 528         buf = kmalloc(size, mem_flags);
 529         if (!buf) {
 530                 usb_free_urb(urb);
 531                 return -ENOMEM;
 532         }
 533
 534         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 535
 536         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 537                                 hdev, data->isoc_rx_ep->bInterval);
 538
 539         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 540
 541         __fill_isoc_descriptor(urb, size,
 542                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 543
 544         usb_anchor_urb(urb, &data->isoc_anchor);
 545
 546         err = usb_submit_urb(urb, mem_flags);
 547         if (err < 0) {
 548                 BT_ERR("%s urb %p submission failed (%d)",
 549                                                 hdev->name, urb, -err);
 550                 usb_unanchor_urb(urb);
 551         }
 552
 553         usb_free_urb(urb);
 554
 555         return err;
 556 }
 557
 558 static void btusb_tx_complete(struct urb *urb)
 559 {
 560         struct sk_buff *skb = urb->context;
 561         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 562         struct btusb_data *data = hdev->driver_data;
 563
 564         BT_DBG("%s urb %p status %d count %d", hdev->name,
 565                                         urb, urb->status, urb->actual_length);
 566
 567         if (!test_bit(HCI_RUNNING, &hdev->flags))
 568                 goto done;
 569
 570         if (!urb->status)
 571                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 572         else
 573                 hdev->stat.err_tx++;
 574
 575 done:
 576         spin_lock(&data->txlock);
 577         data->tx_in_flight--;
 578         spin_unlock(&data->txlock);
 579
 580         kfree(urb->setup_packet);
 581
 582         kfree_skb(skb);
 583 }
 584
 585 static void btusb_isoc_tx_complete(struct urb *urb)
 586 {
 587         struct sk_buff *skb = urb->context;
 588         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 589
 590         BT_DBG("%s urb %p status %d count %d", hdev->name,
 591                                         urb, urb->status, urb->actual_length);
 592
 593         if (!test_bit(HCI_RUNNING, &hdev->flags))
 594                 goto done;
 595
 596         if (!urb->status)
 597                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 598         else
 599                 hdev->stat.err_tx++;
 600
 601 done:
 602         kfree(urb->setup_packet);
 603
 604         kfree_skb(skb);
 605 }
 606
 607 static int btusb_open(struct hci_dev *hdev)
 608 {
 609         struct btusb_data *data = hdev->driver_data;
 610         int err;
 611
 612         BT_DBG("%s", hdev->name);
 613
 614         err = usb_autopm_get_interface(data->intf);
 615         if (err < 0)
 616                 return err;
 617
 618         data->intf->needs_remote_wakeup = 1;
 619
 620         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 621                 goto done;
 622
 623         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 624                 goto done;
 625
 626         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 627         if (err < 0)
 628                 goto failed;
 629
 630         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 631         if (err < 0) {
 632                 usb_kill_anchored_urbs(&data->intr_anchor);
 633                 goto failed;
 634         }
 635
 636         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 637         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 638
 639 done:
 640         usb_autopm_put_interface(data->intf);
 641         return 0;
 642
 643 failed:
 644         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 645         clear_bit(HCI_RUNNING, &hdev->flags);
 646         usb_autopm_put_interface(data->intf);
 647         return err;
 648 }
 649
 650 static void btusb_stop_traffic(struct btusb_data *data)
 651 {
 652         usb_kill_anchored_urbs(&data->intr_anchor);
 653         usb_kill_anchored_urbs(&data->bulk_anchor);
 654         usb_kill_anchored_urbs(&data->isoc_anchor);
 655 }
 656
 657 static int btusb_close(struct hci_dev *hdev)
 658 {
 659         struct btusb_data *data = hdev->driver_data;
 660         int err;
 661
 662         BT_DBG("%s", hdev->name);
 663
 664         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 665                 return 0;
 666
 667         cancel_work_sync(&data->work);
 668         cancel_work_sync(&data->waker);
 669
 670         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 671         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 672         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 673
 674         btusb_stop_traffic(data);
 675         err = usb_autopm_get_interface(data->intf);
 676         if (err < 0)
 677                 goto failed;
 678
 679         data->intf->needs_remote_wakeup = 0;
 680         usb_autopm_put_interface(data->intf);
 681
 682 failed:
 683         usb_scuttle_anchored_urbs(&data->deferred);
 684         return 0;
 685 }
 686
 687 static int btusb_flush(struct hci_dev *hdev)
 688 {
 689         struct btusb_data *data = hdev->driver_data;
 690
 691         BT_DBG("%s", hdev->name);
 692
 693         usb_kill_anchored_urbs(&data->tx_anchor);
 694
 695         return 0;
 696 }
 697
 698 static int btusb_send_frame(struct sk_buff *skb)
 699 {
 700         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 701         struct btusb_data *data = hdev->driver_data;
 702         struct usb_ctrlrequest *dr;
 703         struct urb *urb;
 704         unsigned int pipe;
 705         int err;
 706
 707         BT_DBG("%s", hdev->name);
 708
 709         if (!test_bit(HCI_RUNNING, &hdev->flags))
 710                 return -EBUSY;
 711
 712         switch (bt_cb(skb)->pkt_type) {
 713         case HCI_COMMAND_PKT:
 714                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 715                 if (!urb)
 716                         return -ENOMEM;
 717
 718                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 719                 if (!dr) {
 720                         usb_free_urb(urb);
 721                         return -ENOMEM;
 722                 }
 723
 724                 dr->bRequestType = data->cmdreq_type;
 725                 dr->bRequest     = 0;
 726                 dr->wIndex       = 0;
 727                 dr->wValue       = 0;
 728                 dr->wLength      = __cpu_to_le16(skb->len);
 729
 730                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 731
 732                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 733                                 skb->data, skb->len, btusb_tx_complete, skb);
 734
 735                 hdev->stat.cmd_tx++;
 736                 break;
 737
 738         case HCI_ACLDATA_PKT:
 739                 if (!data->bulk_tx_ep)
 740                         return -ENODEV;
 741
 742                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 743                 if (!urb)
 744                         return -ENOMEM;
 745
 746                 pipe = usb_sndbulkpipe(data->udev,
 747                                         data->bulk_tx_ep->bEndpointAddress);
 748
 749                 usb_fill_bulk_urb(urb, data->udev, pipe,
 750                                 skb->data, skb->len, btusb_tx_complete, skb);
 751
 752                 hdev->stat.acl_tx++;
 753                 break;
 754
 755         case HCI_SCODATA_PKT:
 756                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 757                         return -ENODEV;
 758
 759                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 760                 if (!urb)
 761                         return -ENOMEM;
 762
 763                 pipe = usb_sndisocpipe(data->udev,
 764                                         data->isoc_tx_ep->bEndpointAddress);
 765
 766                 usb_fill_int_urb(urb, data->udev, pipe,
 767                                 skb->data, skb->len, btusb_isoc_tx_complete,
 768                                 skb, data->isoc_tx_ep->bInterval);
 769
 770                 urb->transfer_flags  = URB_ISO_ASAP;
 771
 772                 __fill_isoc_descriptor(urb, skb->len,
 773                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 774
 775                 hdev->stat.sco_tx++;
 776                 goto skip_waking;
 777
 778         default:
 779                 return -EILSEQ;
 780         }
 781
 782         err = inc_tx(data);
 783         if (err) {
 784                 usb_anchor_urb(urb, &data->deferred);
 785                 schedule_work(&data->waker);
 786                 err = 0;
 787                 goto done;
 788         }
 789
 790 skip_waking:
 791         usb_anchor_urb(urb, &data->tx_anchor);
 792
 793         err = usb_submit_urb(urb, GFP_ATOMIC);
 794         if (err < 0) {
 795                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 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_destruct(struct hci_dev *hdev)
 808 {
 809         struct btusb_data *data = hdev->driver_data;
 810
 811         BT_DBG("%s", hdev->name);
 812
 813         kfree(data);
 814 }
 815
 816 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 817 {
 818         struct btusb_data *data = hdev->driver_data;
 819
 820         BT_DBG("%s evt %d", hdev->name, evt);
 821
 822         if (hdev->conn_hash.sco_num != data->sco_num) {
 823                 data->sco_num = hdev->conn_hash.sco_num;
 824                 schedule_work(&data->work);
 825         }
 826 }
 827
 828 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 829 {
 830         struct btusb_data *data = hdev->driver_data;
 831         struct usb_interface *intf = data->isoc;
 832         struct usb_endpoint_descriptor *ep_desc;
 833         int i, err;
 834
 835         if (!data->isoc)
 836                 return -ENODEV;
 837
 838         err = usb_set_interface(data->udev, 1, altsetting);
 839         if (err < 0) {
 840                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 841                 return err;
 842         }
 843
 844         data->isoc_altsetting = altsetting;
 845
 846         data->isoc_tx_ep = NULL;
 847         data->isoc_rx_ep = NULL;
 848
 849         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 850                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 851
 852                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 853                         data->isoc_tx_ep = ep_desc;
 854                         continue;
 855                 }
 856
 857                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 858                         data->isoc_rx_ep = ep_desc;
 859                         continue;
 860                 }
 861         }
 862
 863         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 864                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 865                 return -ENODEV;
 866         }
 867
 868         return 0;
 869 }
 870
 871 static void btusb_work(struct work_struct *work)
 872 {
 873         struct btusb_data *data = container_of(work, struct btusb_data, work);
 874         struct hci_dev *hdev = data->hdev;
 875         int err;
 876
 877         if (hdev->conn_hash.sco_num > 0) {
 878                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 879                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 880                         if (err < 0) {
 881                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 882                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 883                                 return;
 884                         }
 885
 886                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 887                 }
 888                 if (data->isoc_altsetting != 2) {
 889                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 890                         usb_kill_anchored_urbs(&data->isoc_anchor);
 891
 892                         if (__set_isoc_interface(hdev, 2) < 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 = kzalloc(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                 kfree(data);
 991                 return -ENODEV;
 992         }
 993
 994         data->cmdreq_type = USB_TYPE_CLASS;
 995
 996         data->udev = interface_to_usbdev(intf);
 997         data->intf = intf;
 998
 999         spin_lock_init(&data->lock);
1000
1001         INIT_WORK(&data->work, btusb_work);
1002         INIT_WORK(&data->waker, btusb_waker);
1003         spin_lock_init(&data->txlock);
1004
1005         init_usb_anchor(&data->tx_anchor);
1006         init_usb_anchor(&data->intr_anchor);
1007         init_usb_anchor(&data->bulk_anchor);
1008         init_usb_anchor(&data->isoc_anchor);
1009         init_usb_anchor(&data->deferred);
1010
1011         hdev = hci_alloc_dev();
1012         if (!hdev) {
1013                 kfree(data);
1014                 return -ENOMEM;
1015         }
1016
1017         hdev->bus = HCI_USB;
1018         hdev->driver_data = data;
1019
1020         data->hdev = hdev;
1021
1022         SET_HCIDEV_DEV(hdev, &intf->dev);
1023
1024         hdev->open     = btusb_open;
1025         hdev->close    = btusb_close;
1026         hdev->flush    = btusb_flush;
1027         hdev->send     = btusb_send_frame;
1028         hdev->destruct = btusb_destruct;
1029         hdev->notify   = btusb_notify;
1030
1031         hdev->owner = THIS_MODULE;
1032
1033         /* Interface numbers are hardcoded in the specification */
1034         data->isoc = usb_ifnum_to_if(data->udev, 1);
1035
1036         if (!reset)
1037                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1038
1039         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1040                 if (!disable_scofix)
1041                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1042         }
1043
1044         if (id->driver_info & BTUSB_BROKEN_ISOC)
1045                 data->isoc = NULL;
1046
1047         if (id->driver_info & BTUSB_DIGIANSWER) {
1048                 data->cmdreq_type = USB_TYPE_VENDOR;
1049                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1050         }
1051
1052         if (id->driver_info & BTUSB_CSR) {
1053                 struct usb_device *udev = data->udev;
1054
1055                 /* Old firmware would otherwise execute USB reset */
1056                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1057                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1058         }
1059
1060         if (id->driver_info & BTUSB_SNIFFER) {
1061                 struct usb_device *udev = data->udev;
1062
1063                 /* New sniffer firmware has crippled HCI interface */
1064                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1065                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1066
1067                 data->isoc = NULL;
1068         }
1069
1070         if (id->driver_info & BTUSB_BCM92035) {
1071                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1072                 struct sk_buff *skb;
1073
1074                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1075                 if (skb) {
1076                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1077                         skb_queue_tail(&hdev->driver_init, skb);
1078                 }
1079         }
1080
1081         if (data->isoc) {
1082                 err = usb_driver_claim_interface(&btusb_driver,
1083                                                         data->isoc, data);
1084                 if (err < 0) {
1085                         hci_free_dev(hdev);
1086                         kfree(data);
1087                         return err;
1088                 }
1089         }
1090
1091         err = hci_register_dev(hdev);
1092         if (err < 0) {
1093                 hci_free_dev(hdev);
1094                 kfree(data);
1095                 return err;
1096         }
1097
1098         usb_set_intfdata(intf, data);
1099
1100         return 0;
1101 }
1102
1103 static void btusb_disconnect(struct usb_interface *intf)
1104 {
1105         struct btusb_data *data = usb_get_intfdata(intf);
1106         struct hci_dev *hdev;
1107
1108         BT_DBG("intf %p", intf);
1109
1110         if (!data)
1111                 return;
1112
1113         hdev = data->hdev;
1114
1115         __hci_dev_hold(hdev);
1116
1117         usb_set_intfdata(data->intf, NULL);
1118
1119         if (data->isoc)
1120                 usb_set_intfdata(data->isoc, NULL);
1121
1122         hci_unregister_dev(hdev);
1123
1124         if (intf == data->isoc)
1125                 usb_driver_release_interface(&btusb_driver, data->intf);
1126         else if (data->isoc)
1127                 usb_driver_release_interface(&btusb_driver, data->isoc);
1128
1129         __hci_dev_put(hdev);
1130
1131         hci_free_dev(hdev);
1132 }
1133
1134 #ifdef CONFIG_PM
1135 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1136 {
1137         struct btusb_data *data = usb_get_intfdata(intf);
1138
1139         BT_DBG("intf %p", intf);
1140
1141         if (data->suspend_count++)
1142                 return 0;
1143
1144         spin_lock_irq(&data->txlock);
1145         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1146                 set_bit(BTUSB_SUSPENDING, &data->flags);
1147                 spin_unlock_irq(&data->txlock);
1148         } else {
1149                 spin_unlock_irq(&data->txlock);
1150                 data->suspend_count--;
1151                 return -EBUSY;
1152         }
1153
1154         cancel_work_sync(&data->work);
1155
1156         btusb_stop_traffic(data);
1157         usb_kill_anchored_urbs(&data->tx_anchor);
1158
1159         return 0;
1160 }
1161
1162 static void play_deferred(struct btusb_data *data)
1163 {
1164         struct urb *urb;
1165         int err;
1166
1167         while ((urb = usb_get_from_anchor(&data->deferred))) {
1168                 err = usb_submit_urb(urb, GFP_ATOMIC);
1169                 if (err < 0)
1170                         break;
1171
1172                 data->tx_in_flight++;
1173         }
1174         usb_scuttle_anchored_urbs(&data->deferred);
1175 }
1176
1177 static int btusb_resume(struct usb_interface *intf)
1178 {
1179         struct btusb_data *data = usb_get_intfdata(intf);
1180         struct hci_dev *hdev = data->hdev;
1181         int err = 0;
1182
1183         BT_DBG("intf %p", intf);
1184
1185         if (--data->suspend_count)
1186                 return 0;
1187
1188         if (!test_bit(HCI_RUNNING, &hdev->flags))
1189                 goto done;
1190
1191         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1192                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1193                 if (err < 0) {
1194                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1195                         goto failed;
1196                 }
1197         }
1198
1199         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1200                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1201                 if (err < 0) {
1202                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1203                         goto failed;
1204                 }
1205
1206                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1207         }
1208
1209         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1210                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1211                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1212                 else
1213                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1214         }
1215
1216         spin_lock_irq(&data->txlock);
1217         play_deferred(data);
1218         clear_bit(BTUSB_SUSPENDING, &data->flags);
1219         spin_unlock_irq(&data->txlock);
1220         schedule_work(&data->work);
1221
1222         return 0;
1223
1224 failed:
1225         usb_scuttle_anchored_urbs(&data->deferred);
1226 done:
1227         spin_lock_irq(&data->txlock);
1228         clear_bit(BTUSB_SUSPENDING, &data->flags);
1229         spin_unlock_irq(&data->txlock);
1230
1231         return err;
1232 }
1233 #endif
1234
1235 static struct usb_driver btusb_driver = {
1236         .name           = "btusb",
1237         .probe          = btusb_probe,
1238         .disconnect     = btusb_disconnect,
1239 #ifdef CONFIG_PM
1240         .suspend        = btusb_suspend,
1241         .resume         = btusb_resume,
1242 #endif
1243         .id_table       = btusb_table,
1244         .supports_autosuspend = 1,
1245 };
1246
1247 static int __init btusb_init(void)
1248 {
1249         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1250
1251         return usb_register(&btusb_driver);
1252 }
1253
1254 static void __exit btusb_exit(void)
1255 {
1256         usb_deregister(&btusb_driver);
1257 }
1258
1259 module_init(btusb_init);
1260 module_exit(btusb_exit);
1261
1262 module_param(ignore_dga, bool, 0644);
1263 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1264
1265 module_param(ignore_csr, bool, 0644);
1266 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1267
1268 module_param(ignore_sniffer, bool, 0644);
1269 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1270
1271 module_param(disable_scofix, bool, 0644);
1272 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1273
1274 module_param(force_scofix, bool, 0644);
1275 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1276
1277 module_param(reset, bool, 0644);
1278 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1279
1280 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1281 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1282 MODULE_VERSION(VERSION);
1283 MODULE_LICENSE("GPL");