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
 151         /* Atheros AR5BBU12 with sflash firmware */
 152         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 153
 154         /* Atheros AR5BBU12 with sflash firmware */
 155         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 157
 158         /* Broadcom BCM2035 */
 159         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 160         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 161         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 162
 163         /* Broadcom BCM2045 */
 164         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 165         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 166
 167         /* IBM/Lenovo ThinkPad with Broadcom chip */
 168         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 169         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 170
 171         /* HP laptop with Broadcom chip */
 172         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 173
 174         /* Dell laptop with Broadcom chip */
 175         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 176
 177         /* Dell Wireless 370 and 410 devices */
 178         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 179         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 180
 181         /* Belkin F8T012 and F8T013 devices */
 182         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 183         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 184
 185         /* Asus WL-BTD202 device */
 186         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 187
 188         /* Kensington Bluetooth USB adapter */
 189         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 190
 191         /* RTX Telecom based adapters with buggy SCO support */
 192         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 193         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 194
 195         /* CONWISE Technology based adapters with buggy SCO support */
 196         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 197
 198         /* Digianswer devices */
 199         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 200         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 201
 202         /* CSR BlueCore Bluetooth Sniffer */
 203         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 204
 205         /* Frontline ComProbe Bluetooth Sniffer */
 206         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 207
 208         { }     /* Terminating entry */
 209 };
 210
 211 #define BTUSB_MAX_ISOC_FRAMES   10
 212
 213 #define BTUSB_INTR_RUNNING      0
 214 #define BTUSB_BULK_RUNNING      1
 215 #define BTUSB_ISOC_RUNNING      2
 216 #define BTUSB_SUSPENDING        3
 217 #define BTUSB_DID_ISO_RESUME    4
 218
 219 struct btusb_data {
 220         struct hci_dev       *hdev;
 221         struct usb_device    *udev;
 222         struct usb_interface *intf;
 223         struct usb_interface *isoc;
 224
 225         spinlock_t lock;
 226
 227         unsigned long flags;
 228
 229         struct work_struct work;
 230         struct work_struct waker;
 231
 232         struct usb_anchor tx_anchor;
 233         struct usb_anchor intr_anchor;
 234         struct usb_anchor bulk_anchor;
 235         struct usb_anchor isoc_anchor;
 236         struct usb_anchor deferred;
 237         int tx_in_flight;
 238         spinlock_t txlock;
 239
 240         struct usb_endpoint_descriptor *intr_ep;
 241         struct usb_endpoint_descriptor *bulk_tx_ep;
 242         struct usb_endpoint_descriptor *bulk_rx_ep;
 243         struct usb_endpoint_descriptor *isoc_tx_ep;
 244         struct usb_endpoint_descriptor *isoc_rx_ep;
 245
 246         __u8 cmdreq_type;
 247
 248         unsigned int sco_num;
 249         int isoc_altsetting;
 250         int suspend_count;
 251 };
 252
 253 static int inc_tx(struct btusb_data *data)
 254 {
 255         unsigned long flags;
 256         int rv;
 257
 258         spin_lock_irqsave(&data->txlock, flags);
 259         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 260         if (!rv)
 261                 data->tx_in_flight++;
 262         spin_unlock_irqrestore(&data->txlock, flags);
 263
 264         return rv;
 265 }
 266
 267 static void btusb_intr_complete(struct urb *urb)
 268 {
 269         struct hci_dev *hdev = urb->context;
 270         struct btusb_data *data = hdev->driver_data;
 271         int err;
 272
 273         BT_DBG("%s urb %p status %d count %d", hdev->name,
 274                                         urb, urb->status, urb->actual_length);
 275
 276         if (!test_bit(HCI_RUNNING, &hdev->flags))
 277                 return;
 278
 279         if (urb->status == 0) {
 280                 hdev->stat.byte_rx += urb->actual_length;
 281
 282                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 283                                                 urb->transfer_buffer,
 284                                                 urb->actual_length) < 0) {
 285                         BT_ERR("%s corrupted event packet", hdev->name);
 286                         hdev->stat.err_rx++;
 287                 }
 288         }
 289
 290         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 291                 return;
 292
 293         usb_mark_last_busy(data->udev);
 294         usb_anchor_urb(urb, &data->intr_anchor);
 295
 296         err = usb_submit_urb(urb, GFP_ATOMIC);
 297         if (err < 0) {
 298                 /* -EPERM: urb is being killed;
 299                  * -ENODEV: device got disconnected */
 300                 if (err != -EPERM && err != -ENODEV)
 301                         BT_ERR("%s urb %p failed to resubmit (%d)",
 302                                                 hdev->name, urb, -err);
 303                 usb_unanchor_urb(urb);
 304         }
 305 }
 306
 307 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 308 {
 309         struct btusb_data *data = hdev->driver_data;
 310         struct urb *urb;
 311         unsigned char *buf;
 312         unsigned int pipe;
 313         int err, size;
 314
 315         BT_DBG("%s", hdev->name);
 316
 317         if (!data->intr_ep)
 318                 return -ENODEV;
 319
 320         urb = usb_alloc_urb(0, mem_flags);
 321         if (!urb)
 322                 return -ENOMEM;
 323
 324         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 325
 326         buf = kmalloc(size, mem_flags);
 327         if (!buf) {
 328                 usb_free_urb(urb);
 329                 return -ENOMEM;
 330         }
 331
 332         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 333
 334         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 335                                                 btusb_intr_complete, hdev,
 336                                                 data->intr_ep->bInterval);
 337
 338         urb->transfer_flags |= URB_FREE_BUFFER;
 339
 340         usb_anchor_urb(urb, &data->intr_anchor);
 341
 342         err = usb_submit_urb(urb, mem_flags);
 343         if (err < 0) {
 344                 BT_ERR("%s urb %p submission failed (%d)",
 345                                                 hdev->name, urb, -err);
 346                 usb_unanchor_urb(urb);
 347         }
 348
 349         usb_free_urb(urb);
 350
 351         return err;
 352 }
 353
 354 static void btusb_bulk_complete(struct urb *urb)
 355 {
 356         struct hci_dev *hdev = urb->context;
 357         struct btusb_data *data = hdev->driver_data;
 358         int err;
 359
 360         BT_DBG("%s urb %p status %d count %d", hdev->name,
 361                                         urb, urb->status, urb->actual_length);
 362
 363         if (!test_bit(HCI_RUNNING, &hdev->flags))
 364                 return;
 365
 366         if (urb->status == 0) {
 367                 hdev->stat.byte_rx += urb->actual_length;
 368
 369                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 370                                                 urb->transfer_buffer,
 371                                                 urb->actual_length) < 0) {
 372                         BT_ERR("%s corrupted ACL packet", hdev->name);
 373                         hdev->stat.err_rx++;
 374                 }
 375         }
 376
 377         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 378                 return;
 379
 380         usb_anchor_urb(urb, &data->bulk_anchor);
 381         usb_mark_last_busy(data->udev);
 382
 383         err = usb_submit_urb(urb, GFP_ATOMIC);
 384         if (err < 0) {
 385                 /* -EPERM: urb is being killed;
 386                  * -ENODEV: device got disconnected */
 387                 if (err != -EPERM && err != -ENODEV)
 388                         BT_ERR("%s urb %p failed to resubmit (%d)",
 389                                                 hdev->name, urb, -err);
 390                 usb_unanchor_urb(urb);
 391         }
 392 }
 393
 394 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 395 {
 396         struct btusb_data *data = hdev->driver_data;
 397         struct urb *urb;
 398         unsigned char *buf;
 399         unsigned int pipe;
 400         int err, size = HCI_MAX_FRAME_SIZE;
 401
 402         BT_DBG("%s", hdev->name);
 403
 404         if (!data->bulk_rx_ep)
 405                 return -ENODEV;
 406
 407         urb = usb_alloc_urb(0, mem_flags);
 408         if (!urb)
 409                 return -ENOMEM;
 410
 411         buf = kmalloc(size, mem_flags);
 412         if (!buf) {
 413                 usb_free_urb(urb);
 414                 return -ENOMEM;
 415         }
 416
 417         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 418
 419         usb_fill_bulk_urb(urb, data->udev, pipe,
 420                                         buf, size, btusb_bulk_complete, hdev);
 421
 422         urb->transfer_flags |= URB_FREE_BUFFER;
 423
 424         usb_mark_last_busy(data->udev);
 425         usb_anchor_urb(urb, &data->bulk_anchor);
 426
 427         err = usb_submit_urb(urb, mem_flags);
 428         if (err < 0) {
 429                 BT_ERR("%s urb %p submission failed (%d)",
 430                                                 hdev->name, urb, -err);
 431                 usb_unanchor_urb(urb);
 432         }
 433
 434         usb_free_urb(urb);
 435
 436         return err;
 437 }
 438
 439 static void btusb_isoc_complete(struct urb *urb)
 440 {
 441         struct hci_dev *hdev = urb->context;
 442         struct btusb_data *data = hdev->driver_data;
 443         int i, err;
 444
 445         BT_DBG("%s urb %p status %d count %d", hdev->name,
 446                                         urb, urb->status, urb->actual_length);
 447
 448         if (!test_bit(HCI_RUNNING, &hdev->flags))
 449                 return;
 450
 451         if (urb->status == 0) {
 452                 for (i = 0; i < urb->number_of_packets; i++) {
 453                         unsigned int offset = urb->iso_frame_desc[i].offset;
 454                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 455
 456                         if (urb->iso_frame_desc[i].status)
 457                                 continue;
 458
 459                         hdev->stat.byte_rx += length;
 460
 461                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 462                                                 urb->transfer_buffer + offset,
 463                                                                 length) < 0) {
 464                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 465                                 hdev->stat.err_rx++;
 466                         }
 467                 }
 468         }
 469
 470         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 471                 return;
 472
 473         usb_anchor_urb(urb, &data->isoc_anchor);
 474
 475         err = usb_submit_urb(urb, GFP_ATOMIC);
 476         if (err < 0) {
 477                 /* -EPERM: urb is being killed;
 478                  * -ENODEV: device got disconnected */
 479                 if (err != -EPERM && err != -ENODEV)
 480                         BT_ERR("%s urb %p failed to resubmit (%d)",
 481                                                 hdev->name, urb, -err);
 482                 usb_unanchor_urb(urb);
 483         }
 484 }
 485
 486 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 487 {
 488         int i, offset = 0;
 489
 490         BT_DBG("len %d mtu %d", len, mtu);
 491
 492         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 493                                         i++, offset += mtu, len -= mtu) {
 494                 urb->iso_frame_desc[i].offset = offset;
 495                 urb->iso_frame_desc[i].length = mtu;
 496         }
 497
 498         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 499                 urb->iso_frame_desc[i].offset = offset;
 500                 urb->iso_frame_desc[i].length = len;
 501                 i++;
 502         }
 503
 504         urb->number_of_packets = i;
 505 }
 506
 507 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 508 {
 509         struct btusb_data *data = hdev->driver_data;
 510         struct urb *urb;
 511         unsigned char *buf;
 512         unsigned int pipe;
 513         int err, size;
 514
 515         BT_DBG("%s", hdev->name);
 516
 517         if (!data->isoc_rx_ep)
 518                 return -ENODEV;
 519
 520         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 521         if (!urb)
 522                 return -ENOMEM;
 523
 524         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 525                                                 BTUSB_MAX_ISOC_FRAMES;
 526
 527         buf = kmalloc(size, mem_flags);
 528         if (!buf) {
 529                 usb_free_urb(urb);
 530                 return -ENOMEM;
 531         }
 532
 533         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 534
 535         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 536                                 hdev, data->isoc_rx_ep->bInterval);
 537
 538         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 539
 540         __fill_isoc_descriptor(urb, size,
 541                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 542
 543         usb_anchor_urb(urb, &data->isoc_anchor);
 544
 545         err = usb_submit_urb(urb, mem_flags);
 546         if (err < 0) {
 547                 BT_ERR("%s urb %p submission failed (%d)",
 548                                                 hdev->name, urb, -err);
 549                 usb_unanchor_urb(urb);
 550         }
 551
 552         usb_free_urb(urb);
 553
 554         return err;
 555 }
 556
 557 static void btusb_tx_complete(struct urb *urb)
 558 {
 559         struct sk_buff *skb = urb->context;
 560         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 561         struct btusb_data *data = hdev->driver_data;
 562
 563         BT_DBG("%s urb %p status %d count %d", hdev->name,
 564                                         urb, urb->status, urb->actual_length);
 565
 566         if (!test_bit(HCI_RUNNING, &hdev->flags))
 567                 goto done;
 568
 569         if (!urb->status)
 570                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 571         else
 572                 hdev->stat.err_tx++;
 573
 574 done:
 575         spin_lock(&data->txlock);
 576         data->tx_in_flight--;
 577         spin_unlock(&data->txlock);
 578
 579         kfree(urb->setup_packet);
 580
 581         kfree_skb(skb);
 582 }
 583
 584 static void btusb_isoc_tx_complete(struct urb *urb)
 585 {
 586         struct sk_buff *skb = urb->context;
 587         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 588
 589         BT_DBG("%s urb %p status %d count %d", hdev->name,
 590                                         urb, urb->status, urb->actual_length);
 591
 592         if (!test_bit(HCI_RUNNING, &hdev->flags))
 593                 goto done;
 594
 595         if (!urb->status)
 596                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 597         else
 598                 hdev->stat.err_tx++;
 599
 600 done:
 601         kfree(urb->setup_packet);
 602
 603         kfree_skb(skb);
 604 }
 605
 606 static int btusb_open(struct hci_dev *hdev)
 607 {
 608         struct btusb_data *data = hdev->driver_data;
 609         int err;
 610
 611         BT_DBG("%s", hdev->name);
 612
 613         err = usb_autopm_get_interface(data->intf);
 614         if (err < 0)
 615                 return err;
 616
 617         data->intf->needs_remote_wakeup = 1;
 618
 619         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 620                 goto done;
 621
 622         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 623                 goto done;
 624
 625         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 626         if (err < 0)
 627                 goto failed;
 628
 629         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 630         if (err < 0) {
 631                 usb_kill_anchored_urbs(&data->intr_anchor);
 632                 goto failed;
 633         }
 634
 635         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 636         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 637
 638 done:
 639         usb_autopm_put_interface(data->intf);
 640         return 0;
 641
 642 failed:
 643         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 644         clear_bit(HCI_RUNNING, &hdev->flags);
 645         usb_autopm_put_interface(data->intf);
 646         return err;
 647 }
 648
 649 static void btusb_stop_traffic(struct btusb_data *data)
 650 {
 651         usb_kill_anchored_urbs(&data->intr_anchor);
 652         usb_kill_anchored_urbs(&data->bulk_anchor);
 653         usb_kill_anchored_urbs(&data->isoc_anchor);
 654 }
 655
 656 static int btusb_close(struct hci_dev *hdev)
 657 {
 658         struct btusb_data *data = hdev->driver_data;
 659         int err;
 660
 661         BT_DBG("%s", hdev->name);
 662
 663         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 664                 return 0;
 665
 666         cancel_work_sync(&data->work);
 667         cancel_work_sync(&data->waker);
 668
 669         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 670         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 671         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 672
 673         btusb_stop_traffic(data);
 674         err = usb_autopm_get_interface(data->intf);
 675         if (err < 0)
 676                 goto failed;
 677
 678         data->intf->needs_remote_wakeup = 0;
 679         usb_autopm_put_interface(data->intf);
 680
 681 failed:
 682         usb_scuttle_anchored_urbs(&data->deferred);
 683         return 0;
 684 }
 685
 686 static int btusb_flush(struct hci_dev *hdev)
 687 {
 688         struct btusb_data *data = hdev->driver_data;
 689
 690         BT_DBG("%s", hdev->name);
 691
 692         usb_kill_anchored_urbs(&data->tx_anchor);
 693
 694         return 0;
 695 }
 696
 697 static int btusb_send_frame(struct sk_buff *skb)
 698 {
 699         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 700         struct btusb_data *data = hdev->driver_data;
 701         struct usb_ctrlrequest *dr;
 702         struct urb *urb;
 703         unsigned int pipe;
 704         int err;
 705
 706         BT_DBG("%s", hdev->name);
 707
 708         if (!test_bit(HCI_RUNNING, &hdev->flags))
 709                 return -EBUSY;
 710
 711         switch (bt_cb(skb)->pkt_type) {
 712         case HCI_COMMAND_PKT:
 713                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 714                 if (!urb)
 715                         return -ENOMEM;
 716
 717                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 718                 if (!dr) {
 719                         usb_free_urb(urb);
 720                         return -ENOMEM;
 721                 }
 722
 723                 dr->bRequestType = data->cmdreq_type;
 724                 dr->bRequest     = 0;
 725                 dr->wIndex       = 0;
 726                 dr->wValue       = 0;
 727                 dr->wLength      = __cpu_to_le16(skb->len);
 728
 729                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 730
 731                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 732                                 skb->data, skb->len, btusb_tx_complete, skb);
 733
 734                 hdev->stat.cmd_tx++;
 735                 break;
 736
 737         case HCI_ACLDATA_PKT:
 738                 if (!data->bulk_tx_ep)
 739                         return -ENODEV;
 740
 741                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 742                 if (!urb)
 743                         return -ENOMEM;
 744
 745                 pipe = usb_sndbulkpipe(data->udev,
 746                                         data->bulk_tx_ep->bEndpointAddress);
 747
 748                 usb_fill_bulk_urb(urb, data->udev, pipe,
 749                                 skb->data, skb->len, btusb_tx_complete, skb);
 750
 751                 hdev->stat.acl_tx++;
 752                 break;
 753
 754         case HCI_SCODATA_PKT:
 755                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 756                         return -ENODEV;
 757
 758                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 759                 if (!urb)
 760                         return -ENOMEM;
 761
 762                 pipe = usb_sndisocpipe(data->udev,
 763                                         data->isoc_tx_ep->bEndpointAddress);
 764
 765                 usb_fill_int_urb(urb, data->udev, pipe,
 766                                 skb->data, skb->len, btusb_isoc_tx_complete,
 767                                 skb, data->isoc_tx_ep->bInterval);
 768
 769                 urb->transfer_flags  = URB_ISO_ASAP;
 770
 771                 __fill_isoc_descriptor(urb, skb->len,
 772                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 773
 774                 hdev->stat.sco_tx++;
 775                 goto skip_waking;
 776
 777         default:
 778                 return -EILSEQ;
 779         }
 780
 781         err = inc_tx(data);
 782         if (err) {
 783                 usb_anchor_urb(urb, &data->deferred);
 784                 schedule_work(&data->waker);
 785                 err = 0;
 786                 goto done;
 787         }
 788
 789 skip_waking:
 790         usb_anchor_urb(urb, &data->tx_anchor);
 791
 792         err = usb_submit_urb(urb, GFP_ATOMIC);
 793         if (err < 0) {
 794                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 795                 kfree(urb->setup_packet);
 796                 usb_unanchor_urb(urb);
 797         } else {
 798                 usb_mark_last_busy(data->udev);
 799         }
 800
 801 done:
 802         usb_free_urb(urb);
 803         return err;
 804 }
 805
 806 static void btusb_destruct(struct hci_dev *hdev)
 807 {
 808         struct btusb_data *data = hdev->driver_data;
 809
 810         BT_DBG("%s", hdev->name);
 811
 812         kfree(data);
 813 }
 814
 815 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 816 {
 817         struct btusb_data *data = hdev->driver_data;
 818
 819         BT_DBG("%s evt %d", hdev->name, evt);
 820
 821         if (hdev->conn_hash.sco_num != data->sco_num) {
 822                 data->sco_num = hdev->conn_hash.sco_num;
 823                 schedule_work(&data->work);
 824         }
 825 }
 826
 827 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 828 {
 829         struct btusb_data *data = hdev->driver_data;
 830         struct usb_interface *intf = data->isoc;
 831         struct usb_endpoint_descriptor *ep_desc;
 832         int i, err;
 833
 834         if (!data->isoc)
 835                 return -ENODEV;
 836
 837         err = usb_set_interface(data->udev, 1, altsetting);
 838         if (err < 0) {
 839                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 840                 return err;
 841         }
 842
 843         data->isoc_altsetting = altsetting;
 844
 845         data->isoc_tx_ep = NULL;
 846         data->isoc_rx_ep = NULL;
 847
 848         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 849                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 850
 851                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 852                         data->isoc_tx_ep = ep_desc;
 853                         continue;
 854                 }
 855
 856                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 857                         data->isoc_rx_ep = ep_desc;
 858                         continue;
 859                 }
 860         }
 861
 862         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 863                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 864                 return -ENODEV;
 865         }
 866
 867         return 0;
 868 }
 869
 870 static void btusb_work(struct work_struct *work)
 871 {
 872         struct btusb_data *data = container_of(work, struct btusb_data, work);
 873         struct hci_dev *hdev = data->hdev;
 874         int err;
 875
 876         if (hdev->conn_hash.sco_num > 0) {
 877                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 878                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 879                         if (err < 0) {
 880                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 881                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 882                                 return;
 883                         }
 884
 885                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 886                 }
 887                 if (data->isoc_altsetting != 2) {
 888                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 889                         usb_kill_anchored_urbs(&data->isoc_anchor);
 890
 891                         if (__set_isoc_interface(hdev, 2) < 0)
 892                                 return;
 893                 }
 894
 895                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 896                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 897                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 898                         else
 899                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 900                 }
 901         } else {
 902                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 903                 usb_kill_anchored_urbs(&data->isoc_anchor);
 904
 905                 __set_isoc_interface(hdev, 0);
 906                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 907                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 908         }
 909 }
 910
 911 static void btusb_waker(struct work_struct *work)
 912 {
 913         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 914         int err;
 915
 916         err = usb_autopm_get_interface(data->intf);
 917         if (err < 0)
 918                 return;
 919
 920         usb_autopm_put_interface(data->intf);
 921 }
 922
 923 static int btusb_probe(struct usb_interface *intf,
 924                                 const struct usb_device_id *id)
 925 {
 926         struct usb_endpoint_descriptor *ep_desc;
 927         struct btusb_data *data;
 928         struct hci_dev *hdev;
 929         int i, err;
 930
 931         BT_DBG("intf %p id %p", intf, id);
 932
 933         /* interface numbers are hardcoded in the spec */
 934         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 935                 return -ENODEV;
 936
 937         if (!id->driver_info) {
 938                 const struct usb_device_id *match;
 939                 match = usb_match_id(intf, blacklist_table);
 940                 if (match)
 941                         id = match;
 942         }
 943
 944         if (id->driver_info == BTUSB_IGNORE)
 945                 return -ENODEV;
 946
 947         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 948                 return -ENODEV;
 949
 950         if (ignore_csr && id->driver_info & BTUSB_CSR)
 951                 return -ENODEV;
 952
 953         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 954                 return -ENODEV;
 955
 956         if (id->driver_info & BTUSB_ATH3012) {
 957                 struct usb_device *udev = interface_to_usbdev(intf);
 958
 959                 /* Old firmware would otherwise let ath3k driver load
 960                  * patch and sysconfig files */
 961                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 962                         return -ENODEV;
 963         }
 964
 965         data = kzalloc(sizeof(*data), GFP_KERNEL);
 966         if (!data)
 967                 return -ENOMEM;
 968
 969         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 970                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 971
 972                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 973                         data->intr_ep = ep_desc;
 974                         continue;
 975                 }
 976
 977                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 978                         data->bulk_tx_ep = ep_desc;
 979                         continue;
 980                 }
 981
 982                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 983                         data->bulk_rx_ep = ep_desc;
 984                         continue;
 985                 }
 986         }
 987
 988         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 989                 kfree(data);
 990                 return -ENODEV;
 991         }
 992
 993         data->cmdreq_type = USB_TYPE_CLASS;
 994
 995         data->udev = interface_to_usbdev(intf);
 996         data->intf = intf;
 997
 998         spin_lock_init(&data->lock);
 999
1000         INIT_WORK(&data->work, btusb_work);
1001         INIT_WORK(&data->waker, btusb_waker);
1002         spin_lock_init(&data->txlock);
1003
1004         init_usb_anchor(&data->tx_anchor);
1005         init_usb_anchor(&data->intr_anchor);
1006         init_usb_anchor(&data->bulk_anchor);
1007         init_usb_anchor(&data->isoc_anchor);
1008         init_usb_anchor(&data->deferred);
1009
1010         hdev = hci_alloc_dev();
1011         if (!hdev) {
1012                 kfree(data);
1013                 return -ENOMEM;
1014         }
1015
1016         hdev->bus = HCI_USB;
1017         hdev->driver_data = data;
1018
1019         data->hdev = hdev;
1020
1021         SET_HCIDEV_DEV(hdev, &intf->dev);
1022
1023         hdev->open     = btusb_open;
1024         hdev->close    = btusb_close;
1025         hdev->flush    = btusb_flush;
1026         hdev->send     = btusb_send_frame;
1027         hdev->destruct = btusb_destruct;
1028         hdev->notify   = btusb_notify;
1029
1030         hdev->owner = THIS_MODULE;
1031
1032         /* Interface numbers are hardcoded in the specification */
1033         data->isoc = usb_ifnum_to_if(data->udev, 1);
1034
1035         if (!reset)
1036                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1037
1038         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1039                 if (!disable_scofix)
1040                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1041         }
1042
1043         if (id->driver_info & BTUSB_BROKEN_ISOC)
1044                 data->isoc = NULL;
1045
1046         if (id->driver_info & BTUSB_DIGIANSWER) {
1047                 data->cmdreq_type = USB_TYPE_VENDOR;
1048                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1049         }
1050
1051         if (id->driver_info & BTUSB_CSR) {
1052                 struct usb_device *udev = data->udev;
1053
1054                 /* Old firmware would otherwise execute USB reset */
1055                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1056                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1057         }
1058
1059         if (id->driver_info & BTUSB_SNIFFER) {
1060                 struct usb_device *udev = data->udev;
1061
1062                 /* New sniffer firmware has crippled HCI interface */
1063                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1064                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1065
1066                 data->isoc = NULL;
1067         }
1068
1069         if (id->driver_info & BTUSB_BCM92035) {
1070                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1071                 struct sk_buff *skb;
1072
1073                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1074                 if (skb) {
1075                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1076                         skb_queue_tail(&hdev->driver_init, skb);
1077                 }
1078         }
1079
1080         if (data->isoc) {
1081                 err = usb_driver_claim_interface(&btusb_driver,
1082                                                         data->isoc, data);
1083                 if (err < 0) {
1084                         hci_free_dev(hdev);
1085                         kfree(data);
1086                         return err;
1087                 }
1088         }
1089
1090         err = hci_register_dev(hdev);
1091         if (err < 0) {
1092                 hci_free_dev(hdev);
1093                 kfree(data);
1094                 return err;
1095         }
1096
1097         usb_set_intfdata(intf, data);
1098
1099         return 0;
1100 }
1101
1102 static void btusb_disconnect(struct usb_interface *intf)
1103 {
1104         struct btusb_data *data = usb_get_intfdata(intf);
1105         struct hci_dev *hdev;
1106
1107         BT_DBG("intf %p", intf);
1108
1109         if (!data)
1110                 return;
1111
1112         hdev = data->hdev;
1113
1114         __hci_dev_hold(hdev);
1115
1116         usb_set_intfdata(data->intf, NULL);
1117
1118         if (data->isoc)
1119                 usb_set_intfdata(data->isoc, NULL);
1120
1121         hci_unregister_dev(hdev);
1122
1123         if (intf == data->isoc)
1124                 usb_driver_release_interface(&btusb_driver, data->intf);
1125         else if (data->isoc)
1126                 usb_driver_release_interface(&btusb_driver, data->isoc);
1127
1128         __hci_dev_put(hdev);
1129
1130         hci_free_dev(hdev);
1131 }
1132
1133 #ifdef CONFIG_PM
1134 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1135 {
1136         struct btusb_data *data = usb_get_intfdata(intf);
1137
1138         BT_DBG("intf %p", intf);
1139
1140         if (data->suspend_count++)
1141                 return 0;
1142
1143         spin_lock_irq(&data->txlock);
1144         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1145                 set_bit(BTUSB_SUSPENDING, &data->flags);
1146                 spin_unlock_irq(&data->txlock);
1147         } else {
1148                 spin_unlock_irq(&data->txlock);
1149                 data->suspend_count--;
1150                 return -EBUSY;
1151         }
1152
1153         cancel_work_sync(&data->work);
1154
1155         btusb_stop_traffic(data);
1156         usb_kill_anchored_urbs(&data->tx_anchor);
1157
1158         return 0;
1159 }
1160
1161 static void play_deferred(struct btusb_data *data)
1162 {
1163         struct urb *urb;
1164         int err;
1165
1166         while ((urb = usb_get_from_anchor(&data->deferred))) {
1167                 err = usb_submit_urb(urb, GFP_ATOMIC);
1168                 if (err < 0)
1169                         break;
1170
1171                 data->tx_in_flight++;
1172         }
1173         usb_scuttle_anchored_urbs(&data->deferred);
1174 }
1175
1176 static int btusb_resume(struct usb_interface *intf)
1177 {
1178         struct btusb_data *data = usb_get_intfdata(intf);
1179         struct hci_dev *hdev = data->hdev;
1180         int err = 0;
1181
1182         BT_DBG("intf %p", intf);
1183
1184         if (--data->suspend_count)
1185                 return 0;
1186
1187         if (!test_bit(HCI_RUNNING, &hdev->flags))
1188                 goto done;
1189
1190         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1191                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1192                 if (err < 0) {
1193                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1194                         goto failed;
1195                 }
1196         }
1197
1198         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1199                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1200                 if (err < 0) {
1201                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1202                         goto failed;
1203                 }
1204
1205                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1206         }
1207
1208         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1209                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1210                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1211                 else
1212                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1213         }
1214
1215         spin_lock_irq(&data->txlock);
1216         play_deferred(data);
1217         clear_bit(BTUSB_SUSPENDING, &data->flags);
1218         spin_unlock_irq(&data->txlock);
1219         schedule_work(&data->work);
1220
1221         return 0;
1222
1223 failed:
1224         usb_scuttle_anchored_urbs(&data->deferred);
1225 done:
1226         spin_lock_irq(&data->txlock);
1227         clear_bit(BTUSB_SUSPENDING, &data->flags);
1228         spin_unlock_irq(&data->txlock);
1229
1230         return err;
1231 }
1232 #endif
1233
1234 static struct usb_driver btusb_driver = {
1235         .name           = "btusb",
1236         .probe          = btusb_probe,
1237         .disconnect     = btusb_disconnect,
1238 #ifdef CONFIG_PM
1239         .suspend        = btusb_suspend,
1240         .resume         = btusb_resume,
1241 #endif
1242         .id_table       = btusb_table,
1243         .supports_autosuspend = 1,
1244 };
1245
1246 static int __init btusb_init(void)
1247 {
1248         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1249
1250         return usb_register(&btusb_driver);
1251 }
1252
1253 static void __exit btusb_exit(void)
1254 {
1255         usb_deregister(&btusb_driver);
1256 }
1257
1258 module_init(btusb_init);
1259 module_exit(btusb_exit);
1260
1261 module_param(ignore_dga, bool, 0644);
1262 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1263
1264 module_param(ignore_csr, bool, 0644);
1265 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1266
1267 module_param(ignore_sniffer, bool, 0644);
1268 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1269
1270 module_param(disable_scofix, bool, 0644);
1271 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1272
1273 module_param(force_scofix, bool, 0644);
1274 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1275
1276 module_param(reset, bool, 0644);
1277 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1278
1279 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1280 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1281 MODULE_VERSION(VERSION);
1282 MODULE_LICENSE("GPL");