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, 0x0036), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 159
 160         /* Atheros AR5BBU12 with sflash firmware */
 161         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 162
 163         /* Atheros AR5BBU12 with sflash firmware */
 164         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 166
 167         /* Broadcom BCM2035 */
 168         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 169         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 170         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 171
 172         /* Broadcom BCM2045 */
 173         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 174         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 175
 176         /* IBM/Lenovo ThinkPad with Broadcom chip */
 177         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 178         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 179
 180         /* HP laptop with Broadcom chip */
 181         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 182
 183         /* Dell laptop with Broadcom chip */
 184         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 185
 186         /* Dell Wireless 370 and 410 devices */
 187         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 188         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 189
 190         /* Belkin F8T012 and F8T013 devices */
 191         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 192         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 193
 194         /* Asus WL-BTD202 device */
 195         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 196
 197         /* Kensington Bluetooth USB adapter */
 198         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 199
 200         /* RTX Telecom based adapters with buggy SCO support */
 201         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 202         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 203
 204         /* CONWISE Technology based adapters with buggy SCO support */
 205         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 206
 207         /* Digianswer devices */
 208         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 209         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 210
 211         /* CSR BlueCore Bluetooth Sniffer */
 212         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 213
 214         /* Frontline ComProbe Bluetooth Sniffer */
 215         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 216
 217         { }     /* Terminating entry */
 218 };
 219
 220 #define BTUSB_MAX_ISOC_FRAMES   10
 221
 222 #define BTUSB_INTR_RUNNING      0
 223 #define BTUSB_BULK_RUNNING      1
 224 #define BTUSB_ISOC_RUNNING      2
 225 #define BTUSB_SUSPENDING        3
 226 #define BTUSB_DID_ISO_RESUME    4
 227
 228 struct btusb_data {
 229         struct hci_dev       *hdev;
 230         struct usb_device    *udev;
 231         struct usb_interface *intf;
 232         struct usb_interface *isoc;
 233
 234         spinlock_t lock;
 235
 236         unsigned long flags;
 237
 238         struct work_struct work;
 239         struct work_struct waker;
 240
 241         struct usb_anchor tx_anchor;
 242         struct usb_anchor intr_anchor;
 243         struct usb_anchor bulk_anchor;
 244         struct usb_anchor isoc_anchor;
 245         struct usb_anchor deferred;
 246         int tx_in_flight;
 247         spinlock_t txlock;
 248
 249         struct usb_endpoint_descriptor *intr_ep;
 250         struct usb_endpoint_descriptor *bulk_tx_ep;
 251         struct usb_endpoint_descriptor *bulk_rx_ep;
 252         struct usb_endpoint_descriptor *isoc_tx_ep;
 253         struct usb_endpoint_descriptor *isoc_rx_ep;
 254
 255         __u8 cmdreq_type;
 256
 257         unsigned int sco_num;
 258         int isoc_altsetting;
 259         int suspend_count;
 260 };
 261
 262 static int inc_tx(struct btusb_data *data)
 263 {
 264         unsigned long flags;
 265         int rv;
 266
 267         spin_lock_irqsave(&data->txlock, flags);
 268         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 269         if (!rv)
 270                 data->tx_in_flight++;
 271         spin_unlock_irqrestore(&data->txlock, flags);
 272
 273         return rv;
 274 }
 275
 276 static void btusb_intr_complete(struct urb *urb)
 277 {
 278         struct hci_dev *hdev = urb->context;
 279         struct btusb_data *data = hdev->driver_data;
 280         int err;
 281
 282         BT_DBG("%s urb %p status %d count %d", hdev->name,
 283                                         urb, urb->status, urb->actual_length);
 284
 285         if (!test_bit(HCI_RUNNING, &hdev->flags))
 286                 return;
 287
 288         if (urb->status == 0) {
 289                 hdev->stat.byte_rx += urb->actual_length;
 290
 291                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 292                                                 urb->transfer_buffer,
 293                                                 urb->actual_length) < 0) {
 294                         BT_ERR("%s corrupted event packet", hdev->name);
 295                         hdev->stat.err_rx++;
 296                 }
 297         }
 298
 299         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 300                 return;
 301
 302         usb_mark_last_busy(data->udev);
 303         usb_anchor_urb(urb, &data->intr_anchor);
 304
 305         err = usb_submit_urb(urb, GFP_ATOMIC);
 306         if (err < 0) {
 307                 /* -EPERM: urb is being killed;
 308                  * -ENODEV: device got disconnected */
 309                 if (err != -EPERM && err != -ENODEV)
 310                         BT_ERR("%s urb %p failed to resubmit (%d)",
 311                                                 hdev->name, urb, -err);
 312                 usb_unanchor_urb(urb);
 313         }
 314 }
 315
 316 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 317 {
 318         struct btusb_data *data = hdev->driver_data;
 319         struct urb *urb;
 320         unsigned char *buf;
 321         unsigned int pipe;
 322         int err, size;
 323
 324         BT_DBG("%s", hdev->name);
 325
 326         if (!data->intr_ep)
 327                 return -ENODEV;
 328
 329         urb = usb_alloc_urb(0, mem_flags);
 330         if (!urb)
 331                 return -ENOMEM;
 332
 333         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 334
 335         buf = kmalloc(size, mem_flags);
 336         if (!buf) {
 337                 usb_free_urb(urb);
 338                 return -ENOMEM;
 339         }
 340
 341         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 342
 343         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 344                                                 btusb_intr_complete, hdev,
 345                                                 data->intr_ep->bInterval);
 346
 347         urb->transfer_flags |= URB_FREE_BUFFER;
 348
 349         usb_anchor_urb(urb, &data->intr_anchor);
 350
 351         err = usb_submit_urb(urb, mem_flags);
 352         if (err < 0) {
 353                 BT_ERR("%s urb %p submission failed (%d)",
 354                                                 hdev->name, urb, -err);
 355                 usb_unanchor_urb(urb);
 356         }
 357
 358         usb_free_urb(urb);
 359
 360         return err;
 361 }
 362
 363 static void btusb_bulk_complete(struct urb *urb)
 364 {
 365         struct hci_dev *hdev = urb->context;
 366         struct btusb_data *data = hdev->driver_data;
 367         int err;
 368
 369         BT_DBG("%s urb %p status %d count %d", hdev->name,
 370                                         urb, urb->status, urb->actual_length);
 371
 372         if (!test_bit(HCI_RUNNING, &hdev->flags))
 373                 return;
 374
 375         if (urb->status == 0) {
 376                 hdev->stat.byte_rx += urb->actual_length;
 377
 378                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 379                                                 urb->transfer_buffer,
 380                                                 urb->actual_length) < 0) {
 381                         BT_ERR("%s corrupted ACL packet", hdev->name);
 382                         hdev->stat.err_rx++;
 383                 }
 384         }
 385
 386         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 387                 return;
 388
 389         usb_anchor_urb(urb, &data->bulk_anchor);
 390         usb_mark_last_busy(data->udev);
 391
 392         err = usb_submit_urb(urb, GFP_ATOMIC);
 393         if (err < 0) {
 394                 /* -EPERM: urb is being killed;
 395                  * -ENODEV: device got disconnected */
 396                 if (err != -EPERM && err != -ENODEV)
 397                         BT_ERR("%s urb %p failed to resubmit (%d)",
 398                                                 hdev->name, urb, -err);
 399                 usb_unanchor_urb(urb);
 400         }
 401 }
 402
 403 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 404 {
 405         struct btusb_data *data = hdev->driver_data;
 406         struct urb *urb;
 407         unsigned char *buf;
 408         unsigned int pipe;
 409         int err, size = HCI_MAX_FRAME_SIZE;
 410
 411         BT_DBG("%s", hdev->name);
 412
 413         if (!data->bulk_rx_ep)
 414                 return -ENODEV;
 415
 416         urb = usb_alloc_urb(0, mem_flags);
 417         if (!urb)
 418                 return -ENOMEM;
 419
 420         buf = kmalloc(size, mem_flags);
 421         if (!buf) {
 422                 usb_free_urb(urb);
 423                 return -ENOMEM;
 424         }
 425
 426         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 427
 428         usb_fill_bulk_urb(urb, data->udev, pipe,
 429                                         buf, size, btusb_bulk_complete, hdev);
 430
 431         urb->transfer_flags |= URB_FREE_BUFFER;
 432
 433         usb_mark_last_busy(data->udev);
 434         usb_anchor_urb(urb, &data->bulk_anchor);
 435
 436         err = usb_submit_urb(urb, mem_flags);
 437         if (err < 0) {
 438                 BT_ERR("%s urb %p submission failed (%d)",
 439                                                 hdev->name, urb, -err);
 440                 usb_unanchor_urb(urb);
 441         }
 442
 443         usb_free_urb(urb);
 444
 445         return err;
 446 }
 447
 448 static void btusb_isoc_complete(struct urb *urb)
 449 {
 450         struct hci_dev *hdev = urb->context;
 451         struct btusb_data *data = hdev->driver_data;
 452         int i, err;
 453
 454         BT_DBG("%s urb %p status %d count %d", hdev->name,
 455                                         urb, urb->status, urb->actual_length);
 456
 457         if (!test_bit(HCI_RUNNING, &hdev->flags))
 458                 return;
 459
 460         if (urb->status == 0) {
 461                 for (i = 0; i < urb->number_of_packets; i++) {
 462                         unsigned int offset = urb->iso_frame_desc[i].offset;
 463                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 464
 465                         if (urb->iso_frame_desc[i].status)
 466                                 continue;
 467
 468                         hdev->stat.byte_rx += length;
 469
 470                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 471                                                 urb->transfer_buffer + offset,
 472                                                                 length) < 0) {
 473                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 474                                 hdev->stat.err_rx++;
 475                         }
 476                 }
 477         }
 478
 479         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 480                 return;
 481
 482         usb_anchor_urb(urb, &data->isoc_anchor);
 483
 484         err = usb_submit_urb(urb, GFP_ATOMIC);
 485         if (err < 0) {
 486                 /* -EPERM: urb is being killed;
 487                  * -ENODEV: device got disconnected */
 488                 if (err != -EPERM && err != -ENODEV)
 489                         BT_ERR("%s urb %p failed to resubmit (%d)",
 490                                                 hdev->name, urb, -err);
 491                 usb_unanchor_urb(urb);
 492         }
 493 }
 494
 495 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 496 {
 497         int i, offset = 0;
 498
 499         BT_DBG("len %d mtu %d", len, mtu);
 500
 501         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 502                                         i++, offset += mtu, len -= mtu) {
 503                 urb->iso_frame_desc[i].offset = offset;
 504                 urb->iso_frame_desc[i].length = mtu;
 505         }
 506
 507         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 508                 urb->iso_frame_desc[i].offset = offset;
 509                 urb->iso_frame_desc[i].length = len;
 510                 i++;
 511         }
 512
 513         urb->number_of_packets = i;
 514 }
 515
 516 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 517 {
 518         struct btusb_data *data = hdev->driver_data;
 519         struct urb *urb;
 520         unsigned char *buf;
 521         unsigned int pipe;
 522         int err, size;
 523
 524         BT_DBG("%s", hdev->name);
 525
 526         if (!data->isoc_rx_ep)
 527                 return -ENODEV;
 528
 529         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 530         if (!urb)
 531                 return -ENOMEM;
 532
 533         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 534                                                 BTUSB_MAX_ISOC_FRAMES;
 535
 536         buf = kmalloc(size, mem_flags);
 537         if (!buf) {
 538                 usb_free_urb(urb);
 539                 return -ENOMEM;
 540         }
 541
 542         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 543
 544         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 545                                 hdev, data->isoc_rx_ep->bInterval);
 546
 547         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 548
 549         __fill_isoc_descriptor(urb, size,
 550                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 551
 552         usb_anchor_urb(urb, &data->isoc_anchor);
 553
 554         err = usb_submit_urb(urb, mem_flags);
 555         if (err < 0) {
 556                 BT_ERR("%s urb %p submission failed (%d)",
 557                                                 hdev->name, urb, -err);
 558                 usb_unanchor_urb(urb);
 559         }
 560
 561         usb_free_urb(urb);
 562
 563         return err;
 564 }
 565
 566 static void btusb_tx_complete(struct urb *urb)
 567 {
 568         struct sk_buff *skb = urb->context;
 569         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 570         struct btusb_data *data = hdev->driver_data;
 571
 572         BT_DBG("%s urb %p status %d count %d", hdev->name,
 573                                         urb, urb->status, urb->actual_length);
 574
 575         if (!test_bit(HCI_RUNNING, &hdev->flags))
 576                 goto done;
 577
 578         if (!urb->status)
 579                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 580         else
 581                 hdev->stat.err_tx++;
 582
 583 done:
 584         spin_lock(&data->txlock);
 585         data->tx_in_flight--;
 586         spin_unlock(&data->txlock);
 587
 588         kfree(urb->setup_packet);
 589
 590         kfree_skb(skb);
 591 }
 592
 593 static void btusb_isoc_tx_complete(struct urb *urb)
 594 {
 595         struct sk_buff *skb = urb->context;
 596         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 597
 598         BT_DBG("%s urb %p status %d count %d", hdev->name,
 599                                         urb, urb->status, urb->actual_length);
 600
 601         if (!test_bit(HCI_RUNNING, &hdev->flags))
 602                 goto done;
 603
 604         if (!urb->status)
 605                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 606         else
 607                 hdev->stat.err_tx++;
 608
 609 done:
 610         kfree(urb->setup_packet);
 611
 612         kfree_skb(skb);
 613 }
 614
 615 static int btusb_open(struct hci_dev *hdev)
 616 {
 617         struct btusb_data *data = hdev->driver_data;
 618         int err;
 619
 620         BT_DBG("%s", hdev->name);
 621
 622         err = usb_autopm_get_interface(data->intf);
 623         if (err < 0)
 624                 return err;
 625
 626         data->intf->needs_remote_wakeup = 1;
 627
 628         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 629                 goto done;
 630
 631         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 632                 goto done;
 633
 634         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 635         if (err < 0)
 636                 goto failed;
 637
 638         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 639         if (err < 0) {
 640                 usb_kill_anchored_urbs(&data->intr_anchor);
 641                 goto failed;
 642         }
 643
 644         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 645         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 646
 647 done:
 648         usb_autopm_put_interface(data->intf);
 649         return 0;
 650
 651 failed:
 652         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 653         clear_bit(HCI_RUNNING, &hdev->flags);
 654         usb_autopm_put_interface(data->intf);
 655         return err;
 656 }
 657
 658 static void btusb_stop_traffic(struct btusb_data *data)
 659 {
 660         usb_kill_anchored_urbs(&data->intr_anchor);
 661         usb_kill_anchored_urbs(&data->bulk_anchor);
 662         usb_kill_anchored_urbs(&data->isoc_anchor);
 663 }
 664
 665 static int btusb_close(struct hci_dev *hdev)
 666 {
 667         struct btusb_data *data = hdev->driver_data;
 668         int err;
 669
 670         BT_DBG("%s", hdev->name);
 671
 672         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 673                 return 0;
 674
 675         cancel_work_sync(&data->work);
 676         cancel_work_sync(&data->waker);
 677
 678         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 679         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 680         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 681
 682         btusb_stop_traffic(data);
 683         err = usb_autopm_get_interface(data->intf);
 684         if (err < 0)
 685                 goto failed;
 686
 687         data->intf->needs_remote_wakeup = 0;
 688         usb_autopm_put_interface(data->intf);
 689
 690 failed:
 691         usb_scuttle_anchored_urbs(&data->deferred);
 692         return 0;
 693 }
 694
 695 static int btusb_flush(struct hci_dev *hdev)
 696 {
 697         struct btusb_data *data = hdev->driver_data;
 698
 699         BT_DBG("%s", hdev->name);
 700
 701         usb_kill_anchored_urbs(&data->tx_anchor);
 702
 703         return 0;
 704 }
 705
 706 static int btusb_send_frame(struct sk_buff *skb)
 707 {
 708         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 709         struct btusb_data *data = hdev->driver_data;
 710         struct usb_ctrlrequest *dr;
 711         struct urb *urb;
 712         unsigned int pipe;
 713         int err;
 714
 715         BT_DBG("%s", hdev->name);
 716
 717         if (!test_bit(HCI_RUNNING, &hdev->flags))
 718                 return -EBUSY;
 719
 720         switch (bt_cb(skb)->pkt_type) {
 721         case HCI_COMMAND_PKT:
 722                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 723                 if (!urb)
 724                         return -ENOMEM;
 725
 726                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 727                 if (!dr) {
 728                         usb_free_urb(urb);
 729                         return -ENOMEM;
 730                 }
 731
 732                 dr->bRequestType = data->cmdreq_type;
 733                 dr->bRequest     = 0;
 734                 dr->wIndex       = 0;
 735                 dr->wValue       = 0;
 736                 dr->wLength      = __cpu_to_le16(skb->len);
 737
 738                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 739
 740                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 741                                 skb->data, skb->len, btusb_tx_complete, skb);
 742
 743                 hdev->stat.cmd_tx++;
 744                 break;
 745
 746         case HCI_ACLDATA_PKT:
 747                 if (!data->bulk_tx_ep)
 748                         return -ENODEV;
 749
 750                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 751                 if (!urb)
 752                         return -ENOMEM;
 753
 754                 pipe = usb_sndbulkpipe(data->udev,
 755                                         data->bulk_tx_ep->bEndpointAddress);
 756
 757                 usb_fill_bulk_urb(urb, data->udev, pipe,
 758                                 skb->data, skb->len, btusb_tx_complete, skb);
 759
 760                 hdev->stat.acl_tx++;
 761                 break;
 762
 763         case HCI_SCODATA_PKT:
 764                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 765                         return -ENODEV;
 766
 767                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 768                 if (!urb)
 769                         return -ENOMEM;
 770
 771                 pipe = usb_sndisocpipe(data->udev,
 772                                         data->isoc_tx_ep->bEndpointAddress);
 773
 774                 usb_fill_int_urb(urb, data->udev, pipe,
 775                                 skb->data, skb->len, btusb_isoc_tx_complete,
 776                                 skb, data->isoc_tx_ep->bInterval);
 777
 778                 urb->transfer_flags  = URB_ISO_ASAP;
 779
 780                 __fill_isoc_descriptor(urb, skb->len,
 781                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 782
 783                 hdev->stat.sco_tx++;
 784                 goto skip_waking;
 785
 786         default:
 787                 return -EILSEQ;
 788         }
 789
 790         err = inc_tx(data);
 791         if (err) {
 792                 usb_anchor_urb(urb, &data->deferred);
 793                 schedule_work(&data->waker);
 794                 err = 0;
 795                 goto done;
 796         }
 797
 798 skip_waking:
 799         usb_anchor_urb(urb, &data->tx_anchor);
 800
 801         err = usb_submit_urb(urb, GFP_ATOMIC);
 802         if (err < 0) {
 803                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 804                 kfree(urb->setup_packet);
 805                 usb_unanchor_urb(urb);
 806         } else {
 807                 usb_mark_last_busy(data->udev);
 808         }
 809
 810 done:
 811         usb_free_urb(urb);
 812         return err;
 813 }
 814
 815 static void btusb_destruct(struct hci_dev *hdev)
 816 {
 817         struct btusb_data *data = hdev->driver_data;
 818
 819         BT_DBG("%s", hdev->name);
 820
 821         kfree(data);
 822 }
 823
 824 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 825 {
 826         struct btusb_data *data = hdev->driver_data;
 827
 828         BT_DBG("%s evt %d", hdev->name, evt);
 829
 830         if (hdev->conn_hash.sco_num != data->sco_num) {
 831                 data->sco_num = hdev->conn_hash.sco_num;
 832                 schedule_work(&data->work);
 833         }
 834 }
 835
 836 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 837 {
 838         struct btusb_data *data = hdev->driver_data;
 839         struct usb_interface *intf = data->isoc;
 840         struct usb_endpoint_descriptor *ep_desc;
 841         int i, err;
 842
 843         if (!data->isoc)
 844                 return -ENODEV;
 845
 846         err = usb_set_interface(data->udev, 1, altsetting);
 847         if (err < 0) {
 848                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 849                 return err;
 850         }
 851
 852         data->isoc_altsetting = altsetting;
 853
 854         data->isoc_tx_ep = NULL;
 855         data->isoc_rx_ep = NULL;
 856
 857         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 858                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 859
 860                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 861                         data->isoc_tx_ep = ep_desc;
 862                         continue;
 863                 }
 864
 865                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 866                         data->isoc_rx_ep = ep_desc;
 867                         continue;
 868                 }
 869         }
 870
 871         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 872                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 873                 return -ENODEV;
 874         }
 875
 876         return 0;
 877 }
 878
 879 static void btusb_work(struct work_struct *work)
 880 {
 881         struct btusb_data *data = container_of(work, struct btusb_data, work);
 882         struct hci_dev *hdev = data->hdev;
 883         int err;
 884
 885         if (hdev->conn_hash.sco_num > 0) {
 886                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 887                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 888                         if (err < 0) {
 889                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 890                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 891                                 return;
 892                         }
 893
 894                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 895                 }
 896                 if (data->isoc_altsetting != 2) {
 897                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 898                         usb_kill_anchored_urbs(&data->isoc_anchor);
 899
 900                         if (__set_isoc_interface(hdev, 2) < 0)
 901                                 return;
 902                 }
 903
 904                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 905                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 906                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 907                         else
 908                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 909                 }
 910         } else {
 911                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 912                 usb_kill_anchored_urbs(&data->isoc_anchor);
 913
 914                 __set_isoc_interface(hdev, 0);
 915                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 916                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 917         }
 918 }
 919
 920 static void btusb_waker(struct work_struct *work)
 921 {
 922         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 923         int err;
 924
 925         err = usb_autopm_get_interface(data->intf);
 926         if (err < 0)
 927                 return;
 928
 929         usb_autopm_put_interface(data->intf);
 930 }
 931
 932 static int btusb_probe(struct usb_interface *intf,
 933                                 const struct usb_device_id *id)
 934 {
 935         struct usb_endpoint_descriptor *ep_desc;
 936         struct btusb_data *data;
 937         struct hci_dev *hdev;
 938         int i, err;
 939
 940         BT_DBG("intf %p id %p", intf, id);
 941
 942         /* interface numbers are hardcoded in the spec */
 943         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 944                 return -ENODEV;
 945
 946         if (!id->driver_info) {
 947                 const struct usb_device_id *match;
 948                 match = usb_match_id(intf, blacklist_table);
 949                 if (match)
 950                         id = match;
 951         }
 952
 953         if (id->driver_info == BTUSB_IGNORE)
 954                 return -ENODEV;
 955
 956         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 957                 return -ENODEV;
 958
 959         if (ignore_csr && id->driver_info & BTUSB_CSR)
 960                 return -ENODEV;
 961
 962         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 963                 return -ENODEV;
 964
 965         if (id->driver_info & BTUSB_ATH3012) {
 966                 struct usb_device *udev = interface_to_usbdev(intf);
 967
 968                 /* Old firmware would otherwise let ath3k driver load
 969                  * patch and sysconfig files */
 970                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 971                         return -ENODEV;
 972         }
 973
 974         data = kzalloc(sizeof(*data), GFP_KERNEL);
 975         if (!data)
 976                 return -ENOMEM;
 977
 978         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 979                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 980
 981                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 982                         data->intr_ep = ep_desc;
 983                         continue;
 984                 }
 985
 986                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 987                         data->bulk_tx_ep = ep_desc;
 988                         continue;
 989                 }
 990
 991                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 992                         data->bulk_rx_ep = ep_desc;
 993                         continue;
 994                 }
 995         }
 996
 997         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 998                 kfree(data);
 999                 return -ENODEV;
1000         }
1001
1002         data->cmdreq_type = USB_TYPE_CLASS;
1003
1004         data->udev = interface_to_usbdev(intf);
1005         data->intf = intf;
1006
1007         spin_lock_init(&data->lock);
1008
1009         INIT_WORK(&data->work, btusb_work);
1010         INIT_WORK(&data->waker, btusb_waker);
1011         spin_lock_init(&data->txlock);
1012
1013         init_usb_anchor(&data->tx_anchor);
1014         init_usb_anchor(&data->intr_anchor);
1015         init_usb_anchor(&data->bulk_anchor);
1016         init_usb_anchor(&data->isoc_anchor);
1017         init_usb_anchor(&data->deferred);
1018
1019         hdev = hci_alloc_dev();
1020         if (!hdev) {
1021                 kfree(data);
1022                 return -ENOMEM;
1023         }
1024
1025         hdev->bus = HCI_USB;
1026         hdev->driver_data = data;
1027
1028         data->hdev = hdev;
1029
1030         SET_HCIDEV_DEV(hdev, &intf->dev);
1031
1032         hdev->open     = btusb_open;
1033         hdev->close    = btusb_close;
1034         hdev->flush    = btusb_flush;
1035         hdev->send     = btusb_send_frame;
1036         hdev->destruct = btusb_destruct;
1037         hdev->notify   = btusb_notify;
1038
1039         hdev->owner = THIS_MODULE;
1040
1041         /* Interface numbers are hardcoded in the specification */
1042         data->isoc = usb_ifnum_to_if(data->udev, 1);
1043
1044         if (!reset)
1045                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1046
1047         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1048                 if (!disable_scofix)
1049                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1050         }
1051
1052         if (id->driver_info & BTUSB_BROKEN_ISOC)
1053                 data->isoc = NULL;
1054
1055         if (id->driver_info & BTUSB_DIGIANSWER) {
1056                 data->cmdreq_type = USB_TYPE_VENDOR;
1057                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1058         }
1059
1060         if (id->driver_info & BTUSB_CSR) {
1061                 struct usb_device *udev = data->udev;
1062
1063                 /* Old firmware would otherwise execute USB reset */
1064                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1065                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1066         }
1067
1068         if (id->driver_info & BTUSB_SNIFFER) {
1069                 struct usb_device *udev = data->udev;
1070
1071                 /* New sniffer firmware has crippled HCI interface */
1072                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1073                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1074
1075                 data->isoc = NULL;
1076         }
1077
1078         if (id->driver_info & BTUSB_BCM92035) {
1079                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1080                 struct sk_buff *skb;
1081
1082                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1083                 if (skb) {
1084                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1085                         skb_queue_tail(&hdev->driver_init, skb);
1086                 }
1087         }
1088
1089         if (data->isoc) {
1090                 err = usb_driver_claim_interface(&btusb_driver,
1091                                                         data->isoc, data);
1092                 if (err < 0) {
1093                         hci_free_dev(hdev);
1094                         kfree(data);
1095                         return err;
1096                 }
1097         }
1098
1099         err = hci_register_dev(hdev);
1100         if (err < 0) {
1101                 hci_free_dev(hdev);
1102                 kfree(data);
1103                 return err;
1104         }
1105
1106         usb_set_intfdata(intf, data);
1107
1108         return 0;
1109 }
1110
1111 static void btusb_disconnect(struct usb_interface *intf)
1112 {
1113         struct btusb_data *data = usb_get_intfdata(intf);
1114         struct hci_dev *hdev;
1115
1116         BT_DBG("intf %p", intf);
1117
1118         if (!data)
1119                 return;
1120
1121         hdev = data->hdev;
1122
1123         __hci_dev_hold(hdev);
1124
1125         usb_set_intfdata(data->intf, NULL);
1126
1127         if (data->isoc)
1128                 usb_set_intfdata(data->isoc, NULL);
1129
1130         hci_unregister_dev(hdev);
1131
1132         if (intf == data->isoc)
1133                 usb_driver_release_interface(&btusb_driver, data->intf);
1134         else if (data->isoc)
1135                 usb_driver_release_interface(&btusb_driver, data->isoc);
1136
1137         __hci_dev_put(hdev);
1138
1139         hci_free_dev(hdev);
1140 }
1141
1142 #ifdef CONFIG_PM
1143 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1144 {
1145         struct btusb_data *data = usb_get_intfdata(intf);
1146
1147         BT_DBG("intf %p", intf);
1148
1149         if (data->suspend_count++)
1150                 return 0;
1151
1152         spin_lock_irq(&data->txlock);
1153         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1154                 set_bit(BTUSB_SUSPENDING, &data->flags);
1155                 spin_unlock_irq(&data->txlock);
1156         } else {
1157                 spin_unlock_irq(&data->txlock);
1158                 data->suspend_count--;
1159                 return -EBUSY;
1160         }
1161
1162         cancel_work_sync(&data->work);
1163
1164         btusb_stop_traffic(data);
1165         usb_kill_anchored_urbs(&data->tx_anchor);
1166
1167         return 0;
1168 }
1169
1170 static void play_deferred(struct btusb_data *data)
1171 {
1172         struct urb *urb;
1173         int err;
1174
1175         while ((urb = usb_get_from_anchor(&data->deferred))) {
1176                 err = usb_submit_urb(urb, GFP_ATOMIC);
1177                 if (err < 0)
1178                         break;
1179
1180                 data->tx_in_flight++;
1181         }
1182         usb_scuttle_anchored_urbs(&data->deferred);
1183 }
1184
1185 static int btusb_resume(struct usb_interface *intf)
1186 {
1187         struct btusb_data *data = usb_get_intfdata(intf);
1188         struct hci_dev *hdev = data->hdev;
1189         int err = 0;
1190
1191         BT_DBG("intf %p", intf);
1192
1193         if (--data->suspend_count)
1194                 return 0;
1195
1196         if (!test_bit(HCI_RUNNING, &hdev->flags))
1197                 goto done;
1198
1199         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1200                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1201                 if (err < 0) {
1202                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1203                         goto failed;
1204                 }
1205         }
1206
1207         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1208                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1209                 if (err < 0) {
1210                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1211                         goto failed;
1212                 }
1213
1214                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1215         }
1216
1217         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1218                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1219                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1220                 else
1221                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1222         }
1223
1224         spin_lock_irq(&data->txlock);
1225         play_deferred(data);
1226         clear_bit(BTUSB_SUSPENDING, &data->flags);
1227         spin_unlock_irq(&data->txlock);
1228         schedule_work(&data->work);
1229
1230         return 0;
1231
1232 failed:
1233         usb_scuttle_anchored_urbs(&data->deferred);
1234 done:
1235         spin_lock_irq(&data->txlock);
1236         clear_bit(BTUSB_SUSPENDING, &data->flags);
1237         spin_unlock_irq(&data->txlock);
1238
1239         return err;
1240 }
1241 #endif
1242
1243 static struct usb_driver btusb_driver = {
1244         .name           = "btusb",
1245         .probe          = btusb_probe,
1246         .disconnect     = btusb_disconnect,
1247 #ifdef CONFIG_PM
1248         .suspend        = btusb_suspend,
1249         .resume         = btusb_resume,
1250 #endif
1251         .id_table       = btusb_table,
1252         .supports_autosuspend = 1,
1253 };
1254
1255 static int __init btusb_init(void)
1256 {
1257         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1258
1259         return usb_register(&btusb_driver);
1260 }
1261
1262 static void __exit btusb_exit(void)
1263 {
1264         usb_deregister(&btusb_driver);
1265 }
1266
1267 module_init(btusb_init);
1268 module_exit(btusb_exit);
1269
1270 module_param(ignore_dga, bool, 0644);
1271 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1272
1273 module_param(ignore_csr, bool, 0644);
1274 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1275
1276 module_param(ignore_sniffer, bool, 0644);
1277 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1278
1279 module_param(disable_scofix, bool, 0644);
1280 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1281
1282 module_param(force_scofix, bool, 0644);
1283 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1284
1285 module_param(reset, bool, 0644);
1286 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1287
1288 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1289 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1290 MODULE_VERSION(VERSION);
1291 MODULE_LICENSE("GPL");