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(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 153
 154         /* Atheros AR5BBU12 with sflash firmware */
 155         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 156
 157         /* Atheros AR5BBU12 with sflash firmware */
 158         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 160
 161         /* Broadcom BCM2035 */
 162         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 163         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 164         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 165
 166         /* Broadcom BCM2045 */
 167         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 168         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 169
 170         /* IBM/Lenovo ThinkPad with Broadcom chip */
 171         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 172         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 173
 174         /* HP laptop with Broadcom chip */
 175         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 176
 177         /* Dell laptop with Broadcom chip */
 178         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 179
 180         /* Dell Wireless 370 and 410 devices */
 181         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 182         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 183
 184         /* Belkin F8T012 and F8T013 devices */
 185         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 186         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 187
 188         /* Asus WL-BTD202 device */
 189         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 190
 191         /* Kensington Bluetooth USB adapter */
 192         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 193
 194         /* RTX Telecom based adapters with buggy SCO support */
 195         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 196         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 197
 198         /* CONWISE Technology based adapters with buggy SCO support */
 199         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 200
 201         /* Digianswer devices */
 202         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 203         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 204
 205         /* CSR BlueCore Bluetooth Sniffer */
 206         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 207
 208         /* Frontline ComProbe Bluetooth Sniffer */
 209         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 210
 211         { }     /* Terminating entry */
 212 };
 213
 214 #define BTUSB_MAX_ISOC_FRAMES   10
 215
 216 #define BTUSB_INTR_RUNNING      0
 217 #define BTUSB_BULK_RUNNING      1
 218 #define BTUSB_ISOC_RUNNING      2
 219 #define BTUSB_SUSPENDING        3
 220 #define BTUSB_DID_ISO_RESUME    4
 221
 222 struct btusb_data {
 223         struct hci_dev       *hdev;
 224         struct usb_device    *udev;
 225         struct usb_interface *intf;
 226         struct usb_interface *isoc;
 227
 228         spinlock_t lock;
 229
 230         unsigned long flags;
 231
 232         struct work_struct work;
 233         struct work_struct waker;
 234
 235         struct usb_anchor tx_anchor;
 236         struct usb_anchor intr_anchor;
 237         struct usb_anchor bulk_anchor;
 238         struct usb_anchor isoc_anchor;
 239         struct usb_anchor deferred;
 240         int tx_in_flight;
 241         spinlock_t txlock;
 242
 243         struct usb_endpoint_descriptor *intr_ep;
 244         struct usb_endpoint_descriptor *bulk_tx_ep;
 245         struct usb_endpoint_descriptor *bulk_rx_ep;
 246         struct usb_endpoint_descriptor *isoc_tx_ep;
 247         struct usb_endpoint_descriptor *isoc_rx_ep;
 248
 249         __u8 cmdreq_type;
 250
 251         unsigned int sco_num;
 252         int isoc_altsetting;
 253         int suspend_count;
 254 };
 255
 256 static int inc_tx(struct btusb_data *data)
 257 {
 258         unsigned long flags;
 259         int rv;
 260
 261         spin_lock_irqsave(&data->txlock, flags);
 262         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 263         if (!rv)
 264                 data->tx_in_flight++;
 265         spin_unlock_irqrestore(&data->txlock, flags);
 266
 267         return rv;
 268 }
 269
 270 static void btusb_intr_complete(struct urb *urb)
 271 {
 272         struct hci_dev *hdev = urb->context;
 273         struct btusb_data *data = hdev->driver_data;
 274         int err;
 275
 276         BT_DBG("%s urb %p status %d count %d", hdev->name,
 277                                         urb, urb->status, urb->actual_length);
 278
 279         if (!test_bit(HCI_RUNNING, &hdev->flags))
 280                 return;
 281
 282         if (urb->status == 0) {
 283                 hdev->stat.byte_rx += urb->actual_length;
 284
 285                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 286                                                 urb->transfer_buffer,
 287                                                 urb->actual_length) < 0) {
 288                         BT_ERR("%s corrupted event packet", hdev->name);
 289                         hdev->stat.err_rx++;
 290                 }
 291         }
 292
 293         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 294                 return;
 295
 296         usb_mark_last_busy(data->udev);
 297         usb_anchor_urb(urb, &data->intr_anchor);
 298
 299         err = usb_submit_urb(urb, GFP_ATOMIC);
 300         if (err < 0) {
 301                 /* -EPERM: urb is being killed;
 302                  * -ENODEV: device got disconnected */
 303                 if (err != -EPERM && err != -ENODEV)
 304                         BT_ERR("%s urb %p failed to resubmit (%d)",
 305                                                 hdev->name, urb, -err);
 306                 usb_unanchor_urb(urb);
 307         }
 308 }
 309
 310 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 311 {
 312         struct btusb_data *data = hdev->driver_data;
 313         struct urb *urb;
 314         unsigned char *buf;
 315         unsigned int pipe;
 316         int err, size;
 317
 318         BT_DBG("%s", hdev->name);
 319
 320         if (!data->intr_ep)
 321                 return -ENODEV;
 322
 323         urb = usb_alloc_urb(0, mem_flags);
 324         if (!urb)
 325                 return -ENOMEM;
 326
 327         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 328
 329         buf = kmalloc(size, mem_flags);
 330         if (!buf) {
 331                 usb_free_urb(urb);
 332                 return -ENOMEM;
 333         }
 334
 335         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 336
 337         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 338                                                 btusb_intr_complete, hdev,
 339                                                 data->intr_ep->bInterval);
 340
 341         urb->transfer_flags |= URB_FREE_BUFFER;
 342
 343         usb_anchor_urb(urb, &data->intr_anchor);
 344
 345         err = usb_submit_urb(urb, mem_flags);
 346         if (err < 0) {
 347                 BT_ERR("%s urb %p submission failed (%d)",
 348                                                 hdev->name, urb, -err);
 349                 usb_unanchor_urb(urb);
 350         }
 351
 352         usb_free_urb(urb);
 353
 354         return err;
 355 }
 356
 357 static void btusb_bulk_complete(struct urb *urb)
 358 {
 359         struct hci_dev *hdev = urb->context;
 360         struct btusb_data *data = hdev->driver_data;
 361         int err;
 362
 363         BT_DBG("%s urb %p status %d count %d", hdev->name,
 364                                         urb, urb->status, urb->actual_length);
 365
 366         if (!test_bit(HCI_RUNNING, &hdev->flags))
 367                 return;
 368
 369         if (urb->status == 0) {
 370                 hdev->stat.byte_rx += urb->actual_length;
 371
 372                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 373                                                 urb->transfer_buffer,
 374                                                 urb->actual_length) < 0) {
 375                         BT_ERR("%s corrupted ACL packet", hdev->name);
 376                         hdev->stat.err_rx++;
 377                 }
 378         }
 379
 380         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 381                 return;
 382
 383         usb_anchor_urb(urb, &data->bulk_anchor);
 384         usb_mark_last_busy(data->udev);
 385
 386         err = usb_submit_urb(urb, GFP_ATOMIC);
 387         if (err < 0) {
 388                 /* -EPERM: urb is being killed;
 389                  * -ENODEV: device got disconnected */
 390                 if (err != -EPERM && err != -ENODEV)
 391                         BT_ERR("%s urb %p failed to resubmit (%d)",
 392                                                 hdev->name, urb, -err);
 393                 usb_unanchor_urb(urb);
 394         }
 395 }
 396
 397 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 398 {
 399         struct btusb_data *data = hdev->driver_data;
 400         struct urb *urb;
 401         unsigned char *buf;
 402         unsigned int pipe;
 403         int err, size = HCI_MAX_FRAME_SIZE;
 404
 405         BT_DBG("%s", hdev->name);
 406
 407         if (!data->bulk_rx_ep)
 408                 return -ENODEV;
 409
 410         urb = usb_alloc_urb(0, mem_flags);
 411         if (!urb)
 412                 return -ENOMEM;
 413
 414         buf = kmalloc(size, mem_flags);
 415         if (!buf) {
 416                 usb_free_urb(urb);
 417                 return -ENOMEM;
 418         }
 419
 420         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 421
 422         usb_fill_bulk_urb(urb, data->udev, pipe,
 423                                         buf, size, btusb_bulk_complete, hdev);
 424
 425         urb->transfer_flags |= URB_FREE_BUFFER;
 426
 427         usb_mark_last_busy(data->udev);
 428         usb_anchor_urb(urb, &data->bulk_anchor);
 429
 430         err = usb_submit_urb(urb, mem_flags);
 431         if (err < 0) {
 432                 BT_ERR("%s urb %p submission failed (%d)",
 433                                                 hdev->name, urb, -err);
 434                 usb_unanchor_urb(urb);
 435         }
 436
 437         usb_free_urb(urb);
 438
 439         return err;
 440 }
 441
 442 static void btusb_isoc_complete(struct urb *urb)
 443 {
 444         struct hci_dev *hdev = urb->context;
 445         struct btusb_data *data = hdev->driver_data;
 446         int i, err;
 447
 448         BT_DBG("%s urb %p status %d count %d", hdev->name,
 449                                         urb, urb->status, urb->actual_length);
 450
 451         if (!test_bit(HCI_RUNNING, &hdev->flags))
 452                 return;
 453
 454         if (urb->status == 0) {
 455                 for (i = 0; i < urb->number_of_packets; i++) {
 456                         unsigned int offset = urb->iso_frame_desc[i].offset;
 457                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 458
 459                         if (urb->iso_frame_desc[i].status)
 460                                 continue;
 461
 462                         hdev->stat.byte_rx += length;
 463
 464                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 465                                                 urb->transfer_buffer + offset,
 466                                                                 length) < 0) {
 467                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 468                                 hdev->stat.err_rx++;
 469                         }
 470                 }
 471         }
 472
 473         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 474                 return;
 475
 476         usb_anchor_urb(urb, &data->isoc_anchor);
 477
 478         err = usb_submit_urb(urb, GFP_ATOMIC);
 479         if (err < 0) {
 480                 /* -EPERM: urb is being killed;
 481                  * -ENODEV: device got disconnected */
 482                 if (err != -EPERM && err != -ENODEV)
 483                         BT_ERR("%s urb %p failed to resubmit (%d)",
 484                                                 hdev->name, urb, -err);
 485                 usb_unanchor_urb(urb);
 486         }
 487 }
 488
 489 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 490 {
 491         int i, offset = 0;
 492
 493         BT_DBG("len %d mtu %d", len, mtu);
 494
 495         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 496                                         i++, offset += mtu, len -= mtu) {
 497                 urb->iso_frame_desc[i].offset = offset;
 498                 urb->iso_frame_desc[i].length = mtu;
 499         }
 500
 501         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 502                 urb->iso_frame_desc[i].offset = offset;
 503                 urb->iso_frame_desc[i].length = len;
 504                 i++;
 505         }
 506
 507         urb->number_of_packets = i;
 508 }
 509
 510 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 511 {
 512         struct btusb_data *data = hdev->driver_data;
 513         struct urb *urb;
 514         unsigned char *buf;
 515         unsigned int pipe;
 516         int err, size;
 517
 518         BT_DBG("%s", hdev->name);
 519
 520         if (!data->isoc_rx_ep)
 521                 return -ENODEV;
 522
 523         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 524         if (!urb)
 525                 return -ENOMEM;
 526
 527         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 528                                                 BTUSB_MAX_ISOC_FRAMES;
 529
 530         buf = kmalloc(size, mem_flags);
 531         if (!buf) {
 532                 usb_free_urb(urb);
 533                 return -ENOMEM;
 534         }
 535
 536         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 537
 538         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 539                                 hdev, data->isoc_rx_ep->bInterval);
 540
 541         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 542
 543         __fill_isoc_descriptor(urb, size,
 544                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 545
 546         usb_anchor_urb(urb, &data->isoc_anchor);
 547
 548         err = usb_submit_urb(urb, mem_flags);
 549         if (err < 0) {
 550                 BT_ERR("%s urb %p submission failed (%d)",
 551                                                 hdev->name, urb, -err);
 552                 usb_unanchor_urb(urb);
 553         }
 554
 555         usb_free_urb(urb);
 556
 557         return err;
 558 }
 559
 560 static void btusb_tx_complete(struct urb *urb)
 561 {
 562         struct sk_buff *skb = urb->context;
 563         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 564         struct btusb_data *data = hdev->driver_data;
 565
 566         BT_DBG("%s urb %p status %d count %d", hdev->name,
 567                                         urb, urb->status, urb->actual_length);
 568
 569         if (!test_bit(HCI_RUNNING, &hdev->flags))
 570                 goto done;
 571
 572         if (!urb->status)
 573                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 574         else
 575                 hdev->stat.err_tx++;
 576
 577 done:
 578         spin_lock(&data->txlock);
 579         data->tx_in_flight--;
 580         spin_unlock(&data->txlock);
 581
 582         kfree(urb->setup_packet);
 583
 584         kfree_skb(skb);
 585 }
 586
 587 static void btusb_isoc_tx_complete(struct urb *urb)
 588 {
 589         struct sk_buff *skb = urb->context;
 590         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 591
 592         BT_DBG("%s urb %p status %d count %d", hdev->name,
 593                                         urb, urb->status, urb->actual_length);
 594
 595         if (!test_bit(HCI_RUNNING, &hdev->flags))
 596                 goto done;
 597
 598         if (!urb->status)
 599                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 600         else
 601                 hdev->stat.err_tx++;
 602
 603 done:
 604         kfree(urb->setup_packet);
 605
 606         kfree_skb(skb);
 607 }
 608
 609 static int btusb_open(struct hci_dev *hdev)
 610 {
 611         struct btusb_data *data = hdev->driver_data;
 612         int err;
 613
 614         BT_DBG("%s", hdev->name);
 615
 616         err = usb_autopm_get_interface(data->intf);
 617         if (err < 0)
 618                 return err;
 619
 620         data->intf->needs_remote_wakeup = 1;
 621
 622         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 623                 goto done;
 624
 625         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 626                 goto done;
 627
 628         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 629         if (err < 0)
 630                 goto failed;
 631
 632         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 633         if (err < 0) {
 634                 usb_kill_anchored_urbs(&data->intr_anchor);
 635                 goto failed;
 636         }
 637
 638         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 639         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 640
 641 done:
 642         usb_autopm_put_interface(data->intf);
 643         return 0;
 644
 645 failed:
 646         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 647         clear_bit(HCI_RUNNING, &hdev->flags);
 648         usb_autopm_put_interface(data->intf);
 649         return err;
 650 }
 651
 652 static void btusb_stop_traffic(struct btusb_data *data)
 653 {
 654         usb_kill_anchored_urbs(&data->intr_anchor);
 655         usb_kill_anchored_urbs(&data->bulk_anchor);
 656         usb_kill_anchored_urbs(&data->isoc_anchor);
 657 }
 658
 659 static int btusb_close(struct hci_dev *hdev)
 660 {
 661         struct btusb_data *data = hdev->driver_data;
 662         int err;
 663
 664         BT_DBG("%s", hdev->name);
 665
 666         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 667                 return 0;
 668
 669         cancel_work_sync(&data->work);
 670         cancel_work_sync(&data->waker);
 671
 672         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 673         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 674         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 675
 676         btusb_stop_traffic(data);
 677         err = usb_autopm_get_interface(data->intf);
 678         if (err < 0)
 679                 goto failed;
 680
 681         data->intf->needs_remote_wakeup = 0;
 682         usb_autopm_put_interface(data->intf);
 683
 684 failed:
 685         usb_scuttle_anchored_urbs(&data->deferred);
 686         return 0;
 687 }
 688
 689 static int btusb_flush(struct hci_dev *hdev)
 690 {
 691         struct btusb_data *data = hdev->driver_data;
 692
 693         BT_DBG("%s", hdev->name);
 694
 695         usb_kill_anchored_urbs(&data->tx_anchor);
 696
 697         return 0;
 698 }
 699
 700 static int btusb_send_frame(struct sk_buff *skb)
 701 {
 702         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 703         struct btusb_data *data = hdev->driver_data;
 704         struct usb_ctrlrequest *dr;
 705         struct urb *urb;
 706         unsigned int pipe;
 707         int err;
 708
 709         BT_DBG("%s", hdev->name);
 710
 711         if (!test_bit(HCI_RUNNING, &hdev->flags))
 712                 return -EBUSY;
 713
 714         switch (bt_cb(skb)->pkt_type) {
 715         case HCI_COMMAND_PKT:
 716                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 717                 if (!urb)
 718                         return -ENOMEM;
 719
 720                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 721                 if (!dr) {
 722                         usb_free_urb(urb);
 723                         return -ENOMEM;
 724                 }
 725
 726                 dr->bRequestType = data->cmdreq_type;
 727                 dr->bRequest     = 0;
 728                 dr->wIndex       = 0;
 729                 dr->wValue       = 0;
 730                 dr->wLength      = __cpu_to_le16(skb->len);
 731
 732                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 733
 734                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 735                                 skb->data, skb->len, btusb_tx_complete, skb);
 736
 737                 hdev->stat.cmd_tx++;
 738                 break;
 739
 740         case HCI_ACLDATA_PKT:
 741                 if (!data->bulk_tx_ep)
 742                         return -ENODEV;
 743
 744                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 745                 if (!urb)
 746                         return -ENOMEM;
 747
 748                 pipe = usb_sndbulkpipe(data->udev,
 749                                         data->bulk_tx_ep->bEndpointAddress);
 750
 751                 usb_fill_bulk_urb(urb, data->udev, pipe,
 752                                 skb->data, skb->len, btusb_tx_complete, skb);
 753
 754                 hdev->stat.acl_tx++;
 755                 break;
 756
 757         case HCI_SCODATA_PKT:
 758                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 759                         return -ENODEV;
 760
 761                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 762                 if (!urb)
 763                         return -ENOMEM;
 764
 765                 pipe = usb_sndisocpipe(data->udev,
 766                                         data->isoc_tx_ep->bEndpointAddress);
 767
 768                 usb_fill_int_urb(urb, data->udev, pipe,
 769                                 skb->data, skb->len, btusb_isoc_tx_complete,
 770                                 skb, data->isoc_tx_ep->bInterval);
 771
 772                 urb->transfer_flags  = URB_ISO_ASAP;
 773
 774                 __fill_isoc_descriptor(urb, skb->len,
 775                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 776
 777                 hdev->stat.sco_tx++;
 778                 goto skip_waking;
 779
 780         default:
 781                 return -EILSEQ;
 782         }
 783
 784         err = inc_tx(data);
 785         if (err) {
 786                 usb_anchor_urb(urb, &data->deferred);
 787                 schedule_work(&data->waker);
 788                 err = 0;
 789                 goto done;
 790         }
 791
 792 skip_waking:
 793         usb_anchor_urb(urb, &data->tx_anchor);
 794
 795         err = usb_submit_urb(urb, GFP_ATOMIC);
 796         if (err < 0) {
 797                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 798                 kfree(urb->setup_packet);
 799                 usb_unanchor_urb(urb);
 800         } else {
 801                 usb_mark_last_busy(data->udev);
 802         }
 803
 804 done:
 805         usb_free_urb(urb);
 806         return err;
 807 }
 808
 809 static void btusb_destruct(struct hci_dev *hdev)
 810 {
 811         struct btusb_data *data = hdev->driver_data;
 812
 813         BT_DBG("%s", hdev->name);
 814
 815         kfree(data);
 816 }
 817
 818 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 819 {
 820         struct btusb_data *data = hdev->driver_data;
 821
 822         BT_DBG("%s evt %d", hdev->name, evt);
 823
 824         if (hdev->conn_hash.sco_num != data->sco_num) {
 825                 data->sco_num = hdev->conn_hash.sco_num;
 826                 schedule_work(&data->work);
 827         }
 828 }
 829
 830 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 831 {
 832         struct btusb_data *data = hdev->driver_data;
 833         struct usb_interface *intf = data->isoc;
 834         struct usb_endpoint_descriptor *ep_desc;
 835         int i, err;
 836
 837         if (!data->isoc)
 838                 return -ENODEV;
 839
 840         err = usb_set_interface(data->udev, 1, altsetting);
 841         if (err < 0) {
 842                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 843                 return err;
 844         }
 845
 846         data->isoc_altsetting = altsetting;
 847
 848         data->isoc_tx_ep = NULL;
 849         data->isoc_rx_ep = NULL;
 850
 851         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 852                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 853
 854                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 855                         data->isoc_tx_ep = ep_desc;
 856                         continue;
 857                 }
 858
 859                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 860                         data->isoc_rx_ep = ep_desc;
 861                         continue;
 862                 }
 863         }
 864
 865         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 866                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 867                 return -ENODEV;
 868         }
 869
 870         return 0;
 871 }
 872
 873 static void btusb_work(struct work_struct *work)
 874 {
 875         struct btusb_data *data = container_of(work, struct btusb_data, work);
 876         struct hci_dev *hdev = data->hdev;
 877         int err;
 878
 879         if (hdev->conn_hash.sco_num > 0) {
 880                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 881                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 882                         if (err < 0) {
 883                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 884                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 885                                 return;
 886                         }
 887
 888                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 889                 }
 890                 if (data->isoc_altsetting != 2) {
 891                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 892                         usb_kill_anchored_urbs(&data->isoc_anchor);
 893
 894                         if (__set_isoc_interface(hdev, 2) < 0)
 895                                 return;
 896                 }
 897
 898                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 899                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 900                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 901                         else
 902                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 903                 }
 904         } else {
 905                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 906                 usb_kill_anchored_urbs(&data->isoc_anchor);
 907
 908                 __set_isoc_interface(hdev, 0);
 909                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 910                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 911         }
 912 }
 913
 914 static void btusb_waker(struct work_struct *work)
 915 {
 916         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 917         int err;
 918
 919         err = usb_autopm_get_interface(data->intf);
 920         if (err < 0)
 921                 return;
 922
 923         usb_autopm_put_interface(data->intf);
 924 }
 925
 926 static int btusb_probe(struct usb_interface *intf,
 927                                 const struct usb_device_id *id)
 928 {
 929         struct usb_endpoint_descriptor *ep_desc;
 930         struct btusb_data *data;
 931         struct hci_dev *hdev;
 932         int i, err;
 933
 934         BT_DBG("intf %p id %p", intf, id);
 935
 936         /* interface numbers are hardcoded in the spec */
 937         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 938                 return -ENODEV;
 939
 940         if (!id->driver_info) {
 941                 const struct usb_device_id *match;
 942                 match = usb_match_id(intf, blacklist_table);
 943                 if (match)
 944                         id = match;
 945         }
 946
 947         if (id->driver_info == BTUSB_IGNORE)
 948                 return -ENODEV;
 949
 950         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 951                 return -ENODEV;
 952
 953         if (ignore_csr && id->driver_info & BTUSB_CSR)
 954                 return -ENODEV;
 955
 956         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 957                 return -ENODEV;
 958
 959         if (id->driver_info & BTUSB_ATH3012) {
 960                 struct usb_device *udev = interface_to_usbdev(intf);
 961
 962                 /* Old firmware would otherwise let ath3k driver load
 963                  * patch and sysconfig files */
 964                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 965                         return -ENODEV;
 966         }
 967
 968         data = kzalloc(sizeof(*data), GFP_KERNEL);
 969         if (!data)
 970                 return -ENOMEM;
 971
 972         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 973                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 974
 975                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 976                         data->intr_ep = ep_desc;
 977                         continue;
 978                 }
 979
 980                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 981                         data->bulk_tx_ep = ep_desc;
 982                         continue;
 983                 }
 984
 985                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 986                         data->bulk_rx_ep = ep_desc;
 987                         continue;
 988                 }
 989         }
 990
 991         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 992                 kfree(data);
 993                 return -ENODEV;
 994         }
 995
 996         data->cmdreq_type = USB_TYPE_CLASS;
 997
 998         data->udev = interface_to_usbdev(intf);
 999         data->intf = intf;
1000
1001         spin_lock_init(&data->lock);
1002
1003         INIT_WORK(&data->work, btusb_work);
1004         INIT_WORK(&data->waker, btusb_waker);
1005         spin_lock_init(&data->txlock);
1006
1007         init_usb_anchor(&data->tx_anchor);
1008         init_usb_anchor(&data->intr_anchor);
1009         init_usb_anchor(&data->bulk_anchor);
1010         init_usb_anchor(&data->isoc_anchor);
1011         init_usb_anchor(&data->deferred);
1012
1013         hdev = hci_alloc_dev();
1014         if (!hdev) {
1015                 kfree(data);
1016                 return -ENOMEM;
1017         }
1018
1019         hdev->bus = HCI_USB;
1020         hdev->driver_data = data;
1021
1022         data->hdev = hdev;
1023
1024         SET_HCIDEV_DEV(hdev, &intf->dev);
1025
1026         hdev->open     = btusb_open;
1027         hdev->close    = btusb_close;
1028         hdev->flush    = btusb_flush;
1029         hdev->send     = btusb_send_frame;
1030         hdev->destruct = btusb_destruct;
1031         hdev->notify   = btusb_notify;
1032
1033         hdev->owner = THIS_MODULE;
1034
1035         /* Interface numbers are hardcoded in the specification */
1036         data->isoc = usb_ifnum_to_if(data->udev, 1);
1037
1038         if (!reset)
1039                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1040
1041         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1042                 if (!disable_scofix)
1043                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1044         }
1045
1046         if (id->driver_info & BTUSB_BROKEN_ISOC)
1047                 data->isoc = NULL;
1048
1049         if (id->driver_info & BTUSB_DIGIANSWER) {
1050                 data->cmdreq_type = USB_TYPE_VENDOR;
1051                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1052         }
1053
1054         if (id->driver_info & BTUSB_CSR) {
1055                 struct usb_device *udev = data->udev;
1056
1057                 /* Old firmware would otherwise execute USB reset */
1058                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1059                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1060         }
1061
1062         if (id->driver_info & BTUSB_SNIFFER) {
1063                 struct usb_device *udev = data->udev;
1064
1065                 /* New sniffer firmware has crippled HCI interface */
1066                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1067                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1068
1069                 data->isoc = NULL;
1070         }
1071
1072         if (id->driver_info & BTUSB_BCM92035) {
1073                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1074                 struct sk_buff *skb;
1075
1076                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1077                 if (skb) {
1078                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1079                         skb_queue_tail(&hdev->driver_init, skb);
1080                 }
1081         }
1082
1083         if (data->isoc) {
1084                 err = usb_driver_claim_interface(&btusb_driver,
1085                                                         data->isoc, data);
1086                 if (err < 0) {
1087                         hci_free_dev(hdev);
1088                         kfree(data);
1089                         return err;
1090                 }
1091         }
1092
1093         err = hci_register_dev(hdev);
1094         if (err < 0) {
1095                 hci_free_dev(hdev);
1096                 kfree(data);
1097                 return err;
1098         }
1099
1100         usb_set_intfdata(intf, data);
1101
1102         return 0;
1103 }
1104
1105 static void btusb_disconnect(struct usb_interface *intf)
1106 {
1107         struct btusb_data *data = usb_get_intfdata(intf);
1108         struct hci_dev *hdev;
1109
1110         BT_DBG("intf %p", intf);
1111
1112         if (!data)
1113                 return;
1114
1115         hdev = data->hdev;
1116
1117         __hci_dev_hold(hdev);
1118
1119         usb_set_intfdata(data->intf, NULL);
1120
1121         if (data->isoc)
1122                 usb_set_intfdata(data->isoc, NULL);
1123
1124         hci_unregister_dev(hdev);
1125
1126         if (intf == data->isoc)
1127                 usb_driver_release_interface(&btusb_driver, data->intf);
1128         else if (data->isoc)
1129                 usb_driver_release_interface(&btusb_driver, data->isoc);
1130
1131         __hci_dev_put(hdev);
1132
1133         hci_free_dev(hdev);
1134 }
1135
1136 #ifdef CONFIG_PM
1137 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1138 {
1139         struct btusb_data *data = usb_get_intfdata(intf);
1140
1141         BT_DBG("intf %p", intf);
1142
1143         if (data->suspend_count++)
1144                 return 0;
1145
1146         spin_lock_irq(&data->txlock);
1147         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1148                 set_bit(BTUSB_SUSPENDING, &data->flags);
1149                 spin_unlock_irq(&data->txlock);
1150         } else {
1151                 spin_unlock_irq(&data->txlock);
1152                 data->suspend_count--;
1153                 return -EBUSY;
1154         }
1155
1156         cancel_work_sync(&data->work);
1157
1158         btusb_stop_traffic(data);
1159         usb_kill_anchored_urbs(&data->tx_anchor);
1160
1161         return 0;
1162 }
1163
1164 static void play_deferred(struct btusb_data *data)
1165 {
1166         struct urb *urb;
1167         int err;
1168
1169         while ((urb = usb_get_from_anchor(&data->deferred))) {
1170                 err = usb_submit_urb(urb, GFP_ATOMIC);
1171                 if (err < 0)
1172                         break;
1173
1174                 data->tx_in_flight++;
1175         }
1176         usb_scuttle_anchored_urbs(&data->deferred);
1177 }
1178
1179 static int btusb_resume(struct usb_interface *intf)
1180 {
1181         struct btusb_data *data = usb_get_intfdata(intf);
1182         struct hci_dev *hdev = data->hdev;
1183         int err = 0;
1184
1185         BT_DBG("intf %p", intf);
1186
1187         if (--data->suspend_count)
1188                 return 0;
1189
1190         if (!test_bit(HCI_RUNNING, &hdev->flags))
1191                 goto done;
1192
1193         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1194                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1195                 if (err < 0) {
1196                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1197                         goto failed;
1198                 }
1199         }
1200
1201         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1202                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1203                 if (err < 0) {
1204                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1205                         goto failed;
1206                 }
1207
1208                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1209         }
1210
1211         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1212                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1213                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1214                 else
1215                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1216         }
1217
1218         spin_lock_irq(&data->txlock);
1219         play_deferred(data);
1220         clear_bit(BTUSB_SUSPENDING, &data->flags);
1221         spin_unlock_irq(&data->txlock);
1222         schedule_work(&data->work);
1223
1224         return 0;
1225
1226 failed:
1227         usb_scuttle_anchored_urbs(&data->deferred);
1228 done:
1229         spin_lock_irq(&data->txlock);
1230         clear_bit(BTUSB_SUSPENDING, &data->flags);
1231         spin_unlock_irq(&data->txlock);
1232
1233         return err;
1234 }
1235 #endif
1236
1237 static struct usb_driver btusb_driver = {
1238         .name           = "btusb",
1239         .probe          = btusb_probe,
1240         .disconnect     = btusb_disconnect,
1241 #ifdef CONFIG_PM
1242         .suspend        = btusb_suspend,
1243         .resume         = btusb_resume,
1244 #endif
1245         .id_table       = btusb_table,
1246         .supports_autosuspend = 1,
1247 };
1248
1249 static int __init btusb_init(void)
1250 {
1251         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1252
1253         return usb_register(&btusb_driver);
1254 }
1255
1256 static void __exit btusb_exit(void)
1257 {
1258         usb_deregister(&btusb_driver);
1259 }
1260
1261 module_init(btusb_init);
1262 module_exit(btusb_exit);
1263
1264 module_param(ignore_dga, bool, 0644);
1265 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1266
1267 module_param(ignore_csr, bool, 0644);
1268 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1269
1270 module_param(ignore_sniffer, bool, 0644);
1271 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1272
1273 module_param(disable_scofix, bool, 0644);
1274 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1275
1276 module_param(force_scofix, bool, 0644);
1277 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1278
1279 module_param(reset, bool, 0644);
1280 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1281
1282 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1283 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1284 MODULE_VERSION(VERSION);
1285 MODULE_LICENSE("GPL");