drivers/bluetooth/btusb.c

   1 /*
   2  *
   3  *  Generic Bluetooth USB driver
   4  *
   5  *  Copyright (C) 2005-2007  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 CONFIG_BT_HCIBTUSB_DEBUG
  39 #ifndef CONFIG_BT_HCIBTUSB_DEBUG
  40 #undef  BT_DBG
  41 #define BT_DBG(D...)
  42 #endif
  43
  44 #define VERSION "0.2"
  45
  46 static int ignore_dga;
  47 static int ignore_csr;
  48 static int ignore_sniffer;
  49 static int disable_scofix;
  50 static int force_scofix;
  51 static int reset;
  52
  53 static struct usb_driver btusb_driver;
  54
  55 #define BTUSB_IGNORE            0x01
  56 #define BTUSB_RESET             0x02
  57 #define BTUSB_DIGIANSWER        0x04
  58 #define BTUSB_CSR               0x08
  59 #define BTUSB_SNIFFER           0x10
  60 #define BTUSB_BCM92035          0x20
  61 #define BTUSB_BROKEN_ISOC       0x40
  62 #define BTUSB_WRONG_SCO_MTU     0x80
  63
  64 static struct usb_device_id btusb_table[] = {
  65         /* Generic Bluetooth USB device */
  66         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  67
  68         /* AVM BlueFRITZ! USB v2.0 */
  69         { USB_DEVICE(0x057c, 0x3800) },
  70
  71         /* Bluetooth Ultraport Module from IBM */
  72         { USB_DEVICE(0x04bf, 0x030a) },
  73
  74         /* ALPS Modules with non-standard id */
  75         { USB_DEVICE(0x044e, 0x3001) },
  76         { USB_DEVICE(0x044e, 0x3002) },
  77
  78         /* Ericsson with non-standard id */
  79         { USB_DEVICE(0x0bdb, 0x1002) },
  80
  81         /* Canyon CN-BTU1 with HID interfaces */
  82         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_RESET },
  83
  84         { }     /* Terminating entry */
  85 };
  86
  87 MODULE_DEVICE_TABLE(usb, btusb_table);
  88
  89 static struct usb_device_id blacklist_table[] = {
  90         /* CSR BlueCore devices */
  91         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
  92
  93         /* Broadcom BCM2033 without firmware */
  94         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
  95
  96         /* Broadcom BCM2035 */
  97         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
  98         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
  99
 100         /* Broadcom BCM2045 */
 101         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 102         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 103
 104         /* Broadcom BCM2046 */
 105         { USB_DEVICE(0x0a5c, 0x2151), .driver_info = BTUSB_RESET },
 106
 107         /* IBM/Lenovo ThinkPad with Broadcom chip */
 108         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 109         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 110
 111         /* Targus ACB10US */
 112         { USB_DEVICE(0x0a5c, 0x2100), .driver_info = BTUSB_RESET },
 113
 114         /* ANYCOM Bluetooth USB-200 and USB-250 */
 115         { USB_DEVICE(0x0a5c, 0x2111), .driver_info = BTUSB_RESET },
 116
 117         /* HP laptop with Broadcom chip */
 118         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 119
 120         /* Dell laptop with Broadcom chip */
 121         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 122
 123         /* Dell Wireless 370 */
 124         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 125
 126         /* Dell Wireless 410 */
 127         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 128
 129         /* Microsoft Wireless Transceiver for Bluetooth 2.0 */
 130         { USB_DEVICE(0x045e, 0x009c), .driver_info = BTUSB_RESET },
 131
 132         /* Kensington Bluetooth USB adapter */
 133         { USB_DEVICE(0x047d, 0x105d), .driver_info = BTUSB_RESET },
 134         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 135
 136         /* ISSC Bluetooth Adapter v3.1 */
 137         { USB_DEVICE(0x1131, 0x1001), .driver_info = BTUSB_RESET },
 138
 139         /* RTX Telecom based adapters with buggy SCO support */
 140         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 141         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 142
 143         /* CONWISE Technology based adapters with buggy SCO support */
 144         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 145
 146         /* Belkin F8T012 and F8T013 devices */
 147         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 148         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_RESET | BTUSB_WRONG_SCO_MTU },
 149
 150         /* Digianswer devices */
 151         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 152         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 153
 154         /* CSR BlueCore Bluetooth Sniffer */
 155         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 156
 157         /* Frontline ComProbe Bluetooth Sniffer */
 158         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 159
 160         { }     /* Terminating entry */
 161 };
 162
 163 #define BTUSB_INTR_RUNNING      0
 164 #define BTUSB_BULK_RUNNING      1
 165
 166 struct btusb_data {
 167         struct hci_dev       *hdev;
 168         struct usb_device    *udev;
 169
 170         spinlock_t lock;
 171
 172         unsigned long flags;
 173
 174         struct work_struct work;
 175
 176         struct usb_anchor tx_anchor;
 177         struct usb_anchor intr_anchor;
 178         struct usb_anchor bulk_anchor;
 179
 180         struct usb_endpoint_descriptor *intr_ep;
 181         struct usb_endpoint_descriptor *bulk_tx_ep;
 182         struct usb_endpoint_descriptor *bulk_rx_ep;
 183 };
 184
 185 static void btusb_intr_complete(struct urb *urb)
 186 {
 187         struct hci_dev *hdev = urb->context;
 188         struct btusb_data *data = hdev->driver_data;
 189         int err;
 190
 191         BT_DBG("%s urb %p status %d count %d", hdev->name,
 192                                         urb, urb->status, urb->actual_length);
 193
 194         if (!test_bit(HCI_RUNNING, &hdev->flags))
 195                 return;
 196
 197         if (urb->status == 0) {
 198                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 199                                                 urb->transfer_buffer,
 200                                                 urb->actual_length) < 0) {
 201                         BT_ERR("%s corrupted event packet", hdev->name);
 202                         hdev->stat.err_rx++;
 203                 }
 204         }
 205
 206         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 207                 return;
 208
 209         usb_anchor_urb(urb, &data->intr_anchor);
 210
 211         err = usb_submit_urb(urb, GFP_ATOMIC);
 212         if (err < 0) {
 213                 BT_ERR("%s urb %p failed to resubmit (%d)",
 214                                                 hdev->name, urb, -err);
 215                 usb_unanchor_urb(urb);
 216         }
 217 }
 218
 219 static inline int btusb_submit_intr_urb(struct hci_dev *hdev)
 220 {
 221         struct btusb_data *data = hdev->driver_data;
 222         struct urb *urb;
 223         unsigned char *buf;
 224         unsigned int pipe;
 225         int err, size;
 226
 227         BT_DBG("%s", hdev->name);
 228
 229         urb = usb_alloc_urb(0, GFP_ATOMIC);
 230         if (!urb)
 231                 return -ENOMEM;
 232
 233         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 234
 235         buf = kmalloc(size, GFP_ATOMIC);
 236         if (!buf) {
 237                 usb_free_urb(urb);
 238                 return -ENOMEM;
 239         }
 240
 241         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 242
 243         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 244                                                 btusb_intr_complete, hdev,
 245                                                 data->intr_ep->bInterval);
 246
 247         urb->transfer_flags |= URB_FREE_BUFFER;
 248
 249         usb_anchor_urb(urb, &data->intr_anchor);
 250
 251         err = usb_submit_urb(urb, GFP_ATOMIC);
 252         if (err < 0) {
 253                 BT_ERR("%s urb %p submission failed (%d)",
 254                                                 hdev->name, urb, -err);
 255                 usb_unanchor_urb(urb);
 256                 kfree(buf);
 257         }
 258
 259         usb_free_urb(urb);
 260
 261         return err;
 262 }
 263
 264 static void btusb_bulk_complete(struct urb *urb)
 265 {
 266         struct hci_dev *hdev = urb->context;
 267         struct btusb_data *data = hdev->driver_data;
 268         int err;
 269
 270         BT_DBG("%s urb %p status %d count %d", hdev->name,
 271                                         urb, urb->status, urb->actual_length);
 272
 273         if (!test_bit(HCI_RUNNING, &hdev->flags))
 274                 return;
 275
 276         if (urb->status == 0) {
 277                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 278                                                 urb->transfer_buffer,
 279                                                 urb->actual_length) < 0) {
 280                         BT_ERR("%s corrupted ACL packet", hdev->name);
 281                         hdev->stat.err_rx++;
 282                 }
 283         }
 284
 285         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 286                 return;
 287
 288         usb_anchor_urb(urb, &data->bulk_anchor);
 289
 290         err = usb_submit_urb(urb, GFP_ATOMIC);
 291         if (err < 0) {
 292                 BT_ERR("%s urb %p failed to resubmit (%d)",
 293                                                 hdev->name, urb, -err);
 294                 usb_unanchor_urb(urb);
 295         }
 296 }
 297
 298 static inline int btusb_submit_bulk_urb(struct hci_dev *hdev)
 299 {
 300         struct btusb_data *data = hdev->driver_data;
 301         struct urb *urb;
 302         unsigned char *buf;
 303         unsigned int pipe;
 304         int err, size;
 305
 306         BT_DBG("%s", hdev->name);
 307
 308         urb = usb_alloc_urb(0, GFP_KERNEL);
 309         if (!urb)
 310                 return -ENOMEM;
 311
 312         size = le16_to_cpu(data->bulk_rx_ep->wMaxPacketSize);
 313
 314         buf = kmalloc(size, GFP_KERNEL);
 315         if (!buf) {
 316                 usb_free_urb(urb);
 317                 return -ENOMEM;
 318         }
 319
 320         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 321
 322         usb_fill_bulk_urb(urb, data->udev, pipe,
 323                                         buf, size, btusb_bulk_complete, hdev);
 324
 325         urb->transfer_flags |= URB_FREE_BUFFER;
 326
 327         usb_anchor_urb(urb, &data->bulk_anchor);
 328
 329         err = usb_submit_urb(urb, GFP_KERNEL);
 330         if (err < 0) {
 331                 BT_ERR("%s urb %p submission failed (%d)",
 332                                                 hdev->name, urb, -err);
 333                 usb_unanchor_urb(urb);
 334                 kfree(buf);
 335         }
 336
 337         usb_free_urb(urb);
 338
 339         return err;
 340 }
 341
 342 static void btusb_tx_complete(struct urb *urb)
 343 {
 344         struct sk_buff *skb = urb->context;
 345         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 346
 347         BT_DBG("%s urb %p status %d count %d", hdev->name,
 348                                         urb, urb->status, urb->actual_length);
 349
 350         if (!test_bit(HCI_RUNNING, &hdev->flags))
 351                 goto done;
 352
 353         if (!urb->status)
 354                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 355         else
 356                 hdev->stat.err_tx++;
 357
 358 done:
 359         kfree(urb->setup_packet);
 360
 361         kfree_skb(skb);
 362 }
 363
 364 static int btusb_open(struct hci_dev *hdev)
 365 {
 366         struct btusb_data *data = hdev->driver_data;
 367         int err;
 368
 369         BT_DBG("%s", hdev->name);
 370
 371         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 372                 return 0;
 373
 374         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 375                 return 0;
 376
 377         err = btusb_submit_intr_urb(hdev);
 378         if (err < 0) {
 379                 clear_bit(BTUSB_INTR_RUNNING, &hdev->flags);
 380                 clear_bit(HCI_RUNNING, &hdev->flags);
 381         }
 382
 383         return err;
 384 }
 385
 386 static int btusb_close(struct hci_dev *hdev)
 387 {
 388         struct btusb_data *data = hdev->driver_data;
 389
 390         BT_DBG("%s", hdev->name);
 391
 392         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 393                 return 0;
 394
 395         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 396         usb_kill_anchored_urbs(&data->bulk_anchor);
 397
 398         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 399         usb_kill_anchored_urbs(&data->intr_anchor);
 400
 401         return 0;
 402 }
 403
 404 static int btusb_flush(struct hci_dev *hdev)
 405 {
 406         struct btusb_data *data = hdev->driver_data;
 407
 408         BT_DBG("%s", hdev->name);
 409
 410         usb_kill_anchored_urbs(&data->tx_anchor);
 411
 412         return 0;
 413 }
 414
 415 static int btusb_send_frame(struct sk_buff *skb)
 416 {
 417         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 418         struct btusb_data *data = hdev->driver_data;
 419         struct usb_ctrlrequest *dr;
 420         struct urb *urb;
 421         unsigned int pipe;
 422         int err;
 423
 424         BT_DBG("%s", hdev->name);
 425
 426         if (!test_bit(HCI_RUNNING, &hdev->flags))
 427                 return -EBUSY;
 428
 429         switch (bt_cb(skb)->pkt_type) {
 430         case HCI_COMMAND_PKT:
 431                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 432                 if (!urb)
 433                         return -ENOMEM;
 434
 435                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 436                 if (!dr) {
 437                         usb_free_urb(urb);
 438                         return -ENOMEM;
 439                 }
 440
 441                 dr->bRequestType = USB_TYPE_CLASS;
 442                 dr->bRequest     = 0;
 443                 dr->wIndex       = 0;
 444                 dr->wValue       = 0;
 445                 dr->wLength      = __cpu_to_le16(skb->len);
 446
 447                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 448
 449                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 450                                 skb->data, skb->len, btusb_tx_complete, skb);
 451
 452                 hdev->stat.cmd_tx++;
 453                 break;
 454
 455         case HCI_ACLDATA_PKT:
 456                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 457                 if (!urb)
 458                         return -ENOMEM;
 459
 460                 pipe = usb_sndbulkpipe(data->udev,
 461                                         data->bulk_tx_ep->bEndpointAddress);
 462
 463                 usb_fill_bulk_urb(urb, data->udev, pipe,
 464                                 skb->data, skb->len, btusb_tx_complete, skb);
 465
 466                 hdev->stat.acl_tx++;
 467                 break;
 468
 469         case HCI_SCODATA_PKT:
 470                 hdev->stat.sco_tx++;
 471                 kfree_skb(skb);
 472                 return 0;
 473
 474         default:
 475                 return -EILSEQ;
 476         }
 477
 478         usb_anchor_urb(urb, &data->tx_anchor);
 479
 480         err = usb_submit_urb(urb, GFP_ATOMIC);
 481         if (err < 0) {
 482                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 483                 kfree(urb->setup_packet);
 484                 usb_unanchor_urb(urb);
 485         }
 486
 487         usb_free_urb(urb);
 488
 489         return err;
 490 }
 491
 492 static void btusb_destruct(struct hci_dev *hdev)
 493 {
 494         struct btusb_data *data = hdev->driver_data;
 495
 496         BT_DBG("%s", hdev->name);
 497
 498         kfree(data);
 499 }
 500
 501 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 502 {
 503         struct btusb_data *data = hdev->driver_data;
 504
 505         BT_DBG("%s evt %d", hdev->name, evt);
 506
 507         if (evt == HCI_NOTIFY_CONN_ADD || evt == HCI_NOTIFY_CONN_DEL)
 508                 schedule_work(&data->work);
 509 }
 510
 511 static void btusb_work(struct work_struct *work)
 512 {
 513         struct btusb_data *data = container_of(work, struct btusb_data, work);
 514         struct hci_dev *hdev = data->hdev;
 515
 516         if (hdev->conn_hash.acl_num == 0) {
 517                 clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 518                 usb_kill_anchored_urbs(&data->bulk_anchor);
 519                 return;
 520         }
 521
 522         if (!test_and_set_bit(BTUSB_BULK_RUNNING, &data->flags)) {
 523                 if (btusb_submit_bulk_urb(hdev) < 0)
 524                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 525                 else
 526                         btusb_submit_bulk_urb(hdev);
 527         }
 528 }
 529
 530 static int btusb_probe(struct usb_interface *intf,
 531                                 const struct usb_device_id *id)
 532 {
 533         struct usb_endpoint_descriptor *ep_desc;
 534         struct btusb_data *data;
 535         struct hci_dev *hdev;
 536         int i, err;
 537
 538         BT_DBG("intf %p id %p", intf, id);
 539
 540         /* interface numbers are hardcoded in the spec */
 541         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 542                 return -ENODEV;
 543
 544         if (!id->driver_info) {
 545                 const struct usb_device_id *match;
 546                 match = usb_match_id(intf, blacklist_table);
 547                 if (match)
 548                         id = match;
 549         }
 550
 551         if (id->driver_info == BTUSB_IGNORE)
 552                 return -ENODEV;
 553
 554         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 555                 return -ENODEV;
 556
 557         if (ignore_csr && id->driver_info & BTUSB_CSR)
 558                 return -ENODEV;
 559
 560         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 561                 return -ENODEV;
 562
 563         data = kzalloc(sizeof(*data), GFP_KERNEL);
 564         if (!data)
 565                 return -ENOMEM;
 566
 567         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 568                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 569
 570                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 571                         data->intr_ep = ep_desc;
 572                         continue;
 573                 }
 574
 575                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 576                         data->bulk_tx_ep = ep_desc;
 577                         continue;
 578                 }
 579
 580                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 581                         data->bulk_rx_ep = ep_desc;
 582                         continue;
 583                 }
 584         }
 585
 586         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 587                 kfree(data);
 588                 return -ENODEV;
 589         }
 590
 591         data->udev = interface_to_usbdev(intf);
 592
 593         spin_lock_init(&data->lock);
 594
 595         INIT_WORK(&data->work, btusb_work);
 596
 597         init_usb_anchor(&data->tx_anchor);
 598         init_usb_anchor(&data->intr_anchor);
 599         init_usb_anchor(&data->bulk_anchor);
 600
 601         hdev = hci_alloc_dev();
 602         if (!hdev) {
 603                 kfree(data);
 604                 return -ENOMEM;
 605         }
 606
 607         hdev->type = HCI_USB;
 608         hdev->driver_data = data;
 609
 610         data->hdev = hdev;
 611
 612         SET_HCIDEV_DEV(hdev, &intf->dev);
 613
 614         hdev->open     = btusb_open;
 615         hdev->close    = btusb_close;
 616         hdev->flush    = btusb_flush;
 617         hdev->send     = btusb_send_frame;
 618         hdev->destruct = btusb_destruct;
 619         hdev->notify   = btusb_notify;
 620
 621         hdev->owner = THIS_MODULE;
 622
 623         if (reset || id->driver_info & BTUSB_RESET)
 624                 set_bit(HCI_QUIRK_RESET_ON_INIT, &hdev->quirks);
 625
 626         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
 627                 if (!disable_scofix)
 628                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
 629         }
 630
 631         if (id->driver_info & BTUSB_SNIFFER) {
 632                 struct usb_device *udev = interface_to_usbdev(intf);
 633
 634                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
 635                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
 636         }
 637
 638         if (id->driver_info & BTUSB_BCM92035) {
 639                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
 640                 struct sk_buff *skb;
 641
 642                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
 643                 if (skb) {
 644                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
 645                         skb_queue_tail(&hdev->driver_init, skb);
 646                 }
 647         }
 648
 649         err = hci_register_dev(hdev);
 650         if (err < 0) {
 651                 hci_free_dev(hdev);
 652                 kfree(data);
 653                 return err;
 654         }
 655
 656         usb_set_intfdata(intf, data);
 657
 658         return 0;
 659 }
 660
 661 static void btusb_disconnect(struct usb_interface *intf)
 662 {
 663         struct btusb_data *data = usb_get_intfdata(intf);
 664         struct hci_dev *hdev;
 665
 666         BT_DBG("intf %p", intf);
 667
 668         if (!data)
 669                 return;
 670
 671         hdev = data->hdev;
 672
 673         usb_set_intfdata(intf, NULL);
 674
 675         hci_unregister_dev(hdev);
 676
 677         hci_free_dev(hdev);
 678 }
 679
 680 static struct usb_driver btusb_driver = {
 681         .name           = "btusb",
 682         .probe          = btusb_probe,
 683         .disconnect     = btusb_disconnect,
 684         .id_table       = btusb_table,
 685 };
 686
 687 static int __init btusb_init(void)
 688 {
 689         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
 690
 691         return usb_register(&btusb_driver);
 692 }
 693
 694 static void __exit btusb_exit(void)
 695 {
 696         usb_deregister(&btusb_driver);
 697 }
 698
 699 module_init(btusb_init);
 700 module_exit(btusb_exit);
 701
 702 module_param(ignore_dga, bool, 0644);
 703 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
 704
 705 module_param(ignore_csr, bool, 0644);
 706 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
 707
 708 module_param(ignore_sniffer, bool, 0644);
 709 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
 710
 711 module_param(disable_scofix, bool, 0644);
 712 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
 713
 714 module_param(force_scofix, bool, 0644);
 715 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
 716
 717 module_param(reset, bool, 0644);
 718 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
 719
 720 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
 721 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
 722 MODULE_VERSION(VERSION);
 723 MODULE_LICENSE("GPL");