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 bool ignore_dga;
  41 static bool ignore_csr;
  42 static bool ignore_sniffer;
  43 static bool disable_scofix;
  44 static bool force_scofix;
  45
  46 static bool 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         /* Broadcom SoftSailing reporting vendor specific */
  64         { USB_DEVICE(0x0a5c, 0x21e1) },
  65
  66         /* Apple MacBookPro 7,1 */
  67         { USB_DEVICE(0x05ac, 0x8213) },
  68
  69         /* Apple iMac11,1 */
  70         { USB_DEVICE(0x05ac, 0x8215) },
  71
  72         /* Apple MacBookPro6,2 */
  73         { USB_DEVICE(0x05ac, 0x8218) },
  74
  75         /* Apple MacBookAir3,1, MacBookAir3,2 */
  76         { USB_DEVICE(0x05ac, 0x821b) },
  77
  78         /* Apple MacBookAir4,1 */
  79         { USB_DEVICE(0x05ac, 0x821f) },
  80
  81         /* Apple MacBookPro8,2 */
  82         { USB_DEVICE(0x05ac, 0x821a) },
  83
  84         /* Apple MacMini5,1 */
  85         { USB_DEVICE(0x05ac, 0x8281) },
  86
  87         /* AVM BlueFRITZ! USB v2.0 */
  88         { USB_DEVICE(0x057c, 0x3800) },
  89
  90         /* Bluetooth Ultraport Module from IBM */
  91         { USB_DEVICE(0x04bf, 0x030a) },
  92
  93         /* ALPS Modules with non-standard id */
  94         { USB_DEVICE(0x044e, 0x3001) },
  95         { USB_DEVICE(0x044e, 0x3002) },
  96
  97         /* Ericsson with non-standard id */
  98         { USB_DEVICE(0x0bdb, 0x1002) },
  99
 100         /* Canyon CN-BTU1 with HID interfaces */
 101         { USB_DEVICE(0x0c10, 0x0000) },
 102
 103         /* Broadcom BCM20702A0 */
 104         { USB_DEVICE(0x0489, 0xe042) },
 105         { USB_DEVICE(0x0a5c, 0x21e3) },
 106         { USB_DEVICE(0x0a5c, 0x21e6) },
 107         { USB_DEVICE(0x0a5c, 0x21e8) },
 108         { USB_DEVICE(0x0a5c, 0x21f3) },
 109         { USB_DEVICE(0x413c, 0x8197) },
 110
 111         /* Foxconn - Hon Hai */
 112         { USB_DEVICE(0x0489, 0xe033) },
 113
 114         { }     /* Terminating entry */
 115 };
 116
 117 MODULE_DEVICE_TABLE(usb, btusb_table);
 118
 119 static struct usb_device_id blacklist_table[] = {
 120         /* CSR BlueCore devices */
 121         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 122
 123         /* Broadcom BCM2033 without firmware */
 124         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 125
 126         /* Atheros 3011 with sflash firmware */
 127         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 128         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 129         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 130         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 131
 132         /* Atheros AR9285 Malbec with sflash firmware */
 133         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 134
 135         /* Atheros 3012 with sflash firmware */
 136         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 137         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 142
 143         /* Atheros AR5BBU12 with sflash firmware */
 144         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 145
 146         /* Atheros AR5BBU12 with sflash firmware */
 147         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 148
 149         /* Broadcom BCM2035 */
 150         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 151         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 152         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 153
 154         /* Broadcom BCM2045 */
 155         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 156         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 157
 158         /* IBM/Lenovo ThinkPad with Broadcom chip */
 159         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 160         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 161
 162         /* HP laptop with Broadcom chip */
 163         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 164
 165         /* Dell laptop with Broadcom chip */
 166         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 167
 168         /* Dell Wireless 370 and 410 devices */
 169         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 170         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 171
 172         /* Belkin F8T012 and F8T013 devices */
 173         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 174         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 175
 176         /* Asus WL-BTD202 device */
 177         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 178
 179         /* Kensington Bluetooth USB adapter */
 180         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 181
 182         /* RTX Telecom based adapters with buggy SCO support */
 183         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 184         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 185
 186         /* CONWISE Technology based adapters with buggy SCO support */
 187         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 188
 189         /* Digianswer devices */
 190         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 191         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 192
 193         /* CSR BlueCore Bluetooth Sniffer */
 194         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 195
 196         /* Frontline ComProbe Bluetooth Sniffer */
 197         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 198
 199         { }     /* Terminating entry */
 200 };
 201
 202 #define BTUSB_MAX_ISOC_FRAMES   10
 203
 204 #define BTUSB_INTR_RUNNING      0
 205 #define BTUSB_BULK_RUNNING      1
 206 #define BTUSB_ISOC_RUNNING      2
 207 #define BTUSB_SUSPENDING        3
 208 #define BTUSB_DID_ISO_RESUME    4
 209
 210 struct btusb_data {
 211         struct hci_dev       *hdev;
 212         struct usb_device    *udev;
 213         struct usb_interface *intf;
 214         struct usb_interface *isoc;
 215
 216         spinlock_t lock;
 217
 218         unsigned long flags;
 219
 220         struct work_struct work;
 221         struct work_struct waker;
 222
 223         struct usb_anchor tx_anchor;
 224         struct usb_anchor intr_anchor;
 225         struct usb_anchor bulk_anchor;
 226         struct usb_anchor isoc_anchor;
 227         struct usb_anchor deferred;
 228         int tx_in_flight;
 229         spinlock_t txlock;
 230
 231         struct usb_endpoint_descriptor *intr_ep;
 232         struct usb_endpoint_descriptor *bulk_tx_ep;
 233         struct usb_endpoint_descriptor *bulk_rx_ep;
 234         struct usb_endpoint_descriptor *isoc_tx_ep;
 235         struct usb_endpoint_descriptor *isoc_rx_ep;
 236
 237         __u8 cmdreq_type;
 238
 239         unsigned int sco_num;
 240         int isoc_altsetting;
 241         int suspend_count;
 242 };
 243
 244 static int inc_tx(struct btusb_data *data)
 245 {
 246         unsigned long flags;
 247         int rv;
 248
 249         spin_lock_irqsave(&data->txlock, flags);
 250         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 251         if (!rv)
 252                 data->tx_in_flight++;
 253         spin_unlock_irqrestore(&data->txlock, flags);
 254
 255         return rv;
 256 }
 257
 258 static void btusb_intr_complete(struct urb *urb)
 259 {
 260         struct hci_dev *hdev = urb->context;
 261         struct btusb_data *data = hci_get_drvdata(hdev);
 262         int err;
 263
 264         BT_DBG("%s urb %p status %d count %d", hdev->name,
 265                                         urb, urb->status, urb->actual_length);
 266
 267         if (!test_bit(HCI_RUNNING, &hdev->flags))
 268                 return;
 269
 270         if (urb->status == 0) {
 271                 hdev->stat.byte_rx += urb->actual_length;
 272
 273                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 274                                                 urb->transfer_buffer,
 275                                                 urb->actual_length) < 0) {
 276                         BT_ERR("%s corrupted event packet", hdev->name);
 277                         hdev->stat.err_rx++;
 278                 }
 279         }
 280
 281         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 282                 return;
 283
 284         usb_mark_last_busy(data->udev);
 285         usb_anchor_urb(urb, &data->intr_anchor);
 286
 287         err = usb_submit_urb(urb, GFP_ATOMIC);
 288         if (err < 0) {
 289                 /* -EPERM: urb is being killed;
 290                  * -ENODEV: device got disconnected */
 291                 if (err != -EPERM && err != -ENODEV)
 292                         BT_ERR("%s urb %p failed to resubmit (%d)",
 293                                                 hdev->name, urb, -err);
 294                 usb_unanchor_urb(urb);
 295         }
 296 }
 297
 298 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 299 {
 300         struct btusb_data *data = hci_get_drvdata(hdev);
 301         struct urb *urb;
 302         unsigned char *buf;
 303         unsigned int pipe;
 304         int err, size;
 305
 306         BT_DBG("%s", hdev->name);
 307
 308         if (!data->intr_ep)
 309                 return -ENODEV;
 310
 311         urb = usb_alloc_urb(0, mem_flags);
 312         if (!urb)
 313                 return -ENOMEM;
 314
 315         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 316
 317         buf = kmalloc(size, mem_flags);
 318         if (!buf) {
 319                 usb_free_urb(urb);
 320                 return -ENOMEM;
 321         }
 322
 323         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 324
 325         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 326                                                 btusb_intr_complete, hdev,
 327                                                 data->intr_ep->bInterval);
 328
 329         urb->transfer_flags |= URB_FREE_BUFFER;
 330
 331         usb_anchor_urb(urb, &data->intr_anchor);
 332
 333         err = usb_submit_urb(urb, mem_flags);
 334         if (err < 0) {
 335                 if (err != -EPERM && err != -ENODEV)
 336                         BT_ERR("%s urb %p submission failed (%d)",
 337                                                 hdev->name, urb, -err);
 338                 usb_unanchor_urb(urb);
 339         }
 340
 341         usb_free_urb(urb);
 342
 343         return err;
 344 }
 345
 346 static void btusb_bulk_complete(struct urb *urb)
 347 {
 348         struct hci_dev *hdev = urb->context;
 349         struct btusb_data *data = hci_get_drvdata(hdev);
 350         int err;
 351
 352         BT_DBG("%s urb %p status %d count %d", hdev->name,
 353                                         urb, urb->status, urb->actual_length);
 354
 355         if (!test_bit(HCI_RUNNING, &hdev->flags))
 356                 return;
 357
 358         if (urb->status == 0) {
 359                 hdev->stat.byte_rx += urb->actual_length;
 360
 361                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 362                                                 urb->transfer_buffer,
 363                                                 urb->actual_length) < 0) {
 364                         BT_ERR("%s corrupted ACL packet", hdev->name);
 365                         hdev->stat.err_rx++;
 366                 }
 367         }
 368
 369         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 370                 return;
 371
 372         usb_anchor_urb(urb, &data->bulk_anchor);
 373         usb_mark_last_busy(data->udev);
 374
 375         err = usb_submit_urb(urb, GFP_ATOMIC);
 376         if (err < 0) {
 377                 /* -EPERM: urb is being killed;
 378                  * -ENODEV: device got disconnected */
 379                 if (err != -EPERM && err != -ENODEV)
 380                         BT_ERR("%s urb %p failed to resubmit (%d)",
 381                                                 hdev->name, urb, -err);
 382                 usb_unanchor_urb(urb);
 383         }
 384 }
 385
 386 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 387 {
 388         struct btusb_data *data = hci_get_drvdata(hdev);
 389         struct urb *urb;
 390         unsigned char *buf;
 391         unsigned int pipe;
 392         int err, size = HCI_MAX_FRAME_SIZE;
 393
 394         BT_DBG("%s", hdev->name);
 395
 396         if (!data->bulk_rx_ep)
 397                 return -ENODEV;
 398
 399         urb = usb_alloc_urb(0, mem_flags);
 400         if (!urb)
 401                 return -ENOMEM;
 402
 403         buf = kmalloc(size, mem_flags);
 404         if (!buf) {
 405                 usb_free_urb(urb);
 406                 return -ENOMEM;
 407         }
 408
 409         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 410
 411         usb_fill_bulk_urb(urb, data->udev, pipe,
 412                                         buf, size, btusb_bulk_complete, hdev);
 413
 414         urb->transfer_flags |= URB_FREE_BUFFER;
 415
 416         usb_mark_last_busy(data->udev);
 417         usb_anchor_urb(urb, &data->bulk_anchor);
 418
 419         err = usb_submit_urb(urb, mem_flags);
 420         if (err < 0) {
 421                 if (err != -EPERM && err != -ENODEV)
 422                         BT_ERR("%s urb %p submission failed (%d)",
 423                                                 hdev->name, urb, -err);
 424                 usb_unanchor_urb(urb);
 425         }
 426
 427         usb_free_urb(urb);
 428
 429         return err;
 430 }
 431
 432 static void btusb_isoc_complete(struct urb *urb)
 433 {
 434         struct hci_dev *hdev = urb->context;
 435         struct btusb_data *data = hci_get_drvdata(hdev);
 436         int i, err;
 437
 438         BT_DBG("%s urb %p status %d count %d", hdev->name,
 439                                         urb, urb->status, urb->actual_length);
 440
 441         if (!test_bit(HCI_RUNNING, &hdev->flags))
 442                 return;
 443
 444         if (urb->status == 0) {
 445                 for (i = 0; i < urb->number_of_packets; i++) {
 446                         unsigned int offset = urb->iso_frame_desc[i].offset;
 447                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 448
 449                         if (urb->iso_frame_desc[i].status)
 450                                 continue;
 451
 452                         hdev->stat.byte_rx += length;
 453
 454                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 455                                                 urb->transfer_buffer + offset,
 456                                                                 length) < 0) {
 457                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 458                                 hdev->stat.err_rx++;
 459                         }
 460                 }
 461         }
 462
 463         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 464                 return;
 465
 466         usb_anchor_urb(urb, &data->isoc_anchor);
 467
 468         err = usb_submit_urb(urb, GFP_ATOMIC);
 469         if (err < 0) {
 470                 /* -EPERM: urb is being killed;
 471                  * -ENODEV: device got disconnected */
 472                 if (err != -EPERM && err != -ENODEV)
 473                         BT_ERR("%s urb %p failed to resubmit (%d)",
 474                                                 hdev->name, urb, -err);
 475                 usb_unanchor_urb(urb);
 476         }
 477 }
 478
 479 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 480 {
 481         int i, offset = 0;
 482
 483         BT_DBG("len %d mtu %d", len, mtu);
 484
 485         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 486                                         i++, offset += mtu, len -= mtu) {
 487                 urb->iso_frame_desc[i].offset = offset;
 488                 urb->iso_frame_desc[i].length = mtu;
 489         }
 490
 491         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 492                 urb->iso_frame_desc[i].offset = offset;
 493                 urb->iso_frame_desc[i].length = len;
 494                 i++;
 495         }
 496
 497         urb->number_of_packets = i;
 498 }
 499
 500 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 501 {
 502         struct btusb_data *data = hci_get_drvdata(hdev);
 503         struct urb *urb;
 504         unsigned char *buf;
 505         unsigned int pipe;
 506         int err, size;
 507
 508         BT_DBG("%s", hdev->name);
 509
 510         if (!data->isoc_rx_ep)
 511                 return -ENODEV;
 512
 513         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 514         if (!urb)
 515                 return -ENOMEM;
 516
 517         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 518                                                 BTUSB_MAX_ISOC_FRAMES;
 519
 520         buf = kmalloc(size, mem_flags);
 521         if (!buf) {
 522                 usb_free_urb(urb);
 523                 return -ENOMEM;
 524         }
 525
 526         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 527
 528         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 529                                 hdev, data->isoc_rx_ep->bInterval);
 530
 531         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 532
 533         __fill_isoc_descriptor(urb, size,
 534                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 535
 536         usb_anchor_urb(urb, &data->isoc_anchor);
 537
 538         err = usb_submit_urb(urb, mem_flags);
 539         if (err < 0) {
 540                 if (err != -EPERM && err != -ENODEV)
 541                         BT_ERR("%s urb %p submission failed (%d)",
 542                                                 hdev->name, urb, -err);
 543                 usb_unanchor_urb(urb);
 544         }
 545
 546         usb_free_urb(urb);
 547
 548         return err;
 549 }
 550
 551 static void btusb_tx_complete(struct urb *urb)
 552 {
 553         struct sk_buff *skb = urb->context;
 554         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 555         struct btusb_data *data = hci_get_drvdata(hdev);
 556
 557         BT_DBG("%s urb %p status %d count %d", hdev->name,
 558                                         urb, urb->status, urb->actual_length);
 559
 560         if (!test_bit(HCI_RUNNING, &hdev->flags))
 561                 goto done;
 562
 563         if (!urb->status)
 564                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 565         else
 566                 hdev->stat.err_tx++;
 567
 568 done:
 569         spin_lock(&data->txlock);
 570         data->tx_in_flight--;
 571         spin_unlock(&data->txlock);
 572
 573         kfree(urb->setup_packet);
 574
 575         kfree_skb(skb);
 576 }
 577
 578 static void btusb_isoc_tx_complete(struct urb *urb)
 579 {
 580         struct sk_buff *skb = urb->context;
 581         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 582
 583         BT_DBG("%s urb %p status %d count %d", hdev->name,
 584                                         urb, urb->status, urb->actual_length);
 585
 586         if (!test_bit(HCI_RUNNING, &hdev->flags))
 587                 goto done;
 588
 589         if (!urb->status)
 590                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 591         else
 592                 hdev->stat.err_tx++;
 593
 594 done:
 595         kfree(urb->setup_packet);
 596
 597         kfree_skb(skb);
 598 }
 599
 600 static int btusb_open(struct hci_dev *hdev)
 601 {
 602         struct btusb_data *data = hci_get_drvdata(hdev);
 603         int err;
 604
 605         BT_DBG("%s", hdev->name);
 606
 607         err = usb_autopm_get_interface(data->intf);
 608         if (err < 0)
 609                 return err;
 610
 611         data->intf->needs_remote_wakeup = 1;
 612
 613         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 614                 goto done;
 615
 616         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 617                 goto done;
 618
 619         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 620         if (err < 0)
 621                 goto failed;
 622
 623         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 624         if (err < 0) {
 625                 usb_kill_anchored_urbs(&data->intr_anchor);
 626                 goto failed;
 627         }
 628
 629         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 630         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 631
 632 done:
 633         usb_autopm_put_interface(data->intf);
 634         return 0;
 635
 636 failed:
 637         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 638         clear_bit(HCI_RUNNING, &hdev->flags);
 639         usb_autopm_put_interface(data->intf);
 640         return err;
 641 }
 642
 643 static void btusb_stop_traffic(struct btusb_data *data)
 644 {
 645         usb_kill_anchored_urbs(&data->intr_anchor);
 646         usb_kill_anchored_urbs(&data->bulk_anchor);
 647         usb_kill_anchored_urbs(&data->isoc_anchor);
 648 }
 649
 650 static int btusb_close(struct hci_dev *hdev)
 651 {
 652         struct btusb_data *data = hci_get_drvdata(hdev);
 653         int err;
 654
 655         BT_DBG("%s", hdev->name);
 656
 657         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 658                 return 0;
 659
 660         cancel_work_sync(&data->work);
 661         cancel_work_sync(&data->waker);
 662
 663         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 664         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 665         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 666
 667         btusb_stop_traffic(data);
 668         err = usb_autopm_get_interface(data->intf);
 669         if (err < 0)
 670                 goto failed;
 671
 672         data->intf->needs_remote_wakeup = 0;
 673         usb_autopm_put_interface(data->intf);
 674
 675 failed:
 676         usb_scuttle_anchored_urbs(&data->deferred);
 677         return 0;
 678 }
 679
 680 static int btusb_flush(struct hci_dev *hdev)
 681 {
 682         struct btusb_data *data = hci_get_drvdata(hdev);
 683
 684         BT_DBG("%s", hdev->name);
 685
 686         usb_kill_anchored_urbs(&data->tx_anchor);
 687
 688         return 0;
 689 }
 690
 691 static int btusb_send_frame(struct sk_buff *skb)
 692 {
 693         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 694         struct btusb_data *data = hci_get_drvdata(hdev);
 695         struct usb_ctrlrequest *dr;
 696         struct urb *urb;
 697         unsigned int pipe;
 698         int err;
 699
 700         BT_DBG("%s", hdev->name);
 701
 702         if (!test_bit(HCI_RUNNING, &hdev->flags))
 703                 return -EBUSY;
 704
 705         switch (bt_cb(skb)->pkt_type) {
 706         case HCI_COMMAND_PKT:
 707                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 708                 if (!urb)
 709                         return -ENOMEM;
 710
 711                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 712                 if (!dr) {
 713                         usb_free_urb(urb);
 714                         return -ENOMEM;
 715                 }
 716
 717                 dr->bRequestType = data->cmdreq_type;
 718                 dr->bRequest     = 0;
 719                 dr->wIndex       = 0;
 720                 dr->wValue       = 0;
 721                 dr->wLength      = __cpu_to_le16(skb->len);
 722
 723                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 724
 725                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 726                                 skb->data, skb->len, btusb_tx_complete, skb);
 727
 728                 hdev->stat.cmd_tx++;
 729                 break;
 730
 731         case HCI_ACLDATA_PKT:
 732                 if (!data->bulk_tx_ep)
 733                         return -ENODEV;
 734
 735                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 736                 if (!urb)
 737                         return -ENOMEM;
 738
 739                 pipe = usb_sndbulkpipe(data->udev,
 740                                         data->bulk_tx_ep->bEndpointAddress);
 741
 742                 usb_fill_bulk_urb(urb, data->udev, pipe,
 743                                 skb->data, skb->len, btusb_tx_complete, skb);
 744
 745                 hdev->stat.acl_tx++;
 746                 break;
 747
 748         case HCI_SCODATA_PKT:
 749                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 750                         return -ENODEV;
 751
 752                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 753                 if (!urb)
 754                         return -ENOMEM;
 755
 756                 pipe = usb_sndisocpipe(data->udev,
 757                                         data->isoc_tx_ep->bEndpointAddress);
 758
 759                 usb_fill_int_urb(urb, data->udev, pipe,
 760                                 skb->data, skb->len, btusb_isoc_tx_complete,
 761                                 skb, data->isoc_tx_ep->bInterval);
 762
 763                 urb->transfer_flags  = URB_ISO_ASAP;
 764
 765                 __fill_isoc_descriptor(urb, skb->len,
 766                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 767
 768                 hdev->stat.sco_tx++;
 769                 goto skip_waking;
 770
 771         default:
 772                 return -EILSEQ;
 773         }
 774
 775         err = inc_tx(data);
 776         if (err) {
 777                 usb_anchor_urb(urb, &data->deferred);
 778                 schedule_work(&data->waker);
 779                 err = 0;
 780                 goto done;
 781         }
 782
 783 skip_waking:
 784         usb_anchor_urb(urb, &data->tx_anchor);
 785
 786         err = usb_submit_urb(urb, GFP_ATOMIC);
 787         if (err < 0) {
 788                 if (err != -EPERM && err != -ENODEV)
 789                         BT_ERR("%s urb %p submission failed (%d)",
 790                                                 hdev->name, urb, -err);
 791                 kfree(urb->setup_packet);
 792                 usb_unanchor_urb(urb);
 793         } else {
 794                 usb_mark_last_busy(data->udev);
 795         }
 796
 797 done:
 798         usb_free_urb(urb);
 799         return err;
 800 }
 801
 802 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 803 {
 804         struct btusb_data *data = hci_get_drvdata(hdev);
 805
 806         BT_DBG("%s evt %d", hdev->name, evt);
 807
 808         if (hdev->conn_hash.sco_num != data->sco_num) {
 809                 data->sco_num = hdev->conn_hash.sco_num;
 810                 schedule_work(&data->work);
 811         }
 812 }
 813
 814 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 815 {
 816         struct btusb_data *data = hci_get_drvdata(hdev);
 817         struct usb_interface *intf = data->isoc;
 818         struct usb_endpoint_descriptor *ep_desc;
 819         int i, err;
 820
 821         if (!data->isoc)
 822                 return -ENODEV;
 823
 824         err = usb_set_interface(data->udev, 1, altsetting);
 825         if (err < 0) {
 826                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 827                 return err;
 828         }
 829
 830         data->isoc_altsetting = altsetting;
 831
 832         data->isoc_tx_ep = NULL;
 833         data->isoc_rx_ep = NULL;
 834
 835         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 836                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 837
 838                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 839                         data->isoc_tx_ep = ep_desc;
 840                         continue;
 841                 }
 842
 843                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 844                         data->isoc_rx_ep = ep_desc;
 845                         continue;
 846                 }
 847         }
 848
 849         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 850                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 851                 return -ENODEV;
 852         }
 853
 854         return 0;
 855 }
 856
 857 static void btusb_work(struct work_struct *work)
 858 {
 859         struct btusb_data *data = container_of(work, struct btusb_data, work);
 860         struct hci_dev *hdev = data->hdev;
 861         int new_alts;
 862         int err;
 863
 864         if (hdev->conn_hash.sco_num > 0) {
 865                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 866                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 867                         if (err < 0) {
 868                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 869                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 870                                 return;
 871                         }
 872
 873                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 874                 }
 875
 876                 if (hdev->voice_setting & 0x0020) {
 877                         static const int alts[3] = { 2, 4, 5 };
 878                         new_alts = alts[hdev->conn_hash.sco_num - 1];
 879                 } else {
 880                         new_alts = hdev->conn_hash.sco_num;
 881                 }
 882
 883                 if (data->isoc_altsetting != new_alts) {
 884                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 885                         usb_kill_anchored_urbs(&data->isoc_anchor);
 886
 887                         if (__set_isoc_interface(hdev, new_alts) < 0)
 888                                 return;
 889                 }
 890
 891                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 892                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 893                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 894                         else
 895                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 896                 }
 897         } else {
 898                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 899                 usb_kill_anchored_urbs(&data->isoc_anchor);
 900
 901                 __set_isoc_interface(hdev, 0);
 902                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 903                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 904         }
 905 }
 906
 907 static void btusb_waker(struct work_struct *work)
 908 {
 909         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 910         int err;
 911
 912         err = usb_autopm_get_interface(data->intf);
 913         if (err < 0)
 914                 return;
 915
 916         usb_autopm_put_interface(data->intf);
 917 }
 918
 919 static int btusb_probe(struct usb_interface *intf,
 920                                 const struct usb_device_id *id)
 921 {
 922         struct usb_endpoint_descriptor *ep_desc;
 923         struct btusb_data *data;
 924         struct hci_dev *hdev;
 925         int i, err;
 926
 927         BT_DBG("intf %p id %p", intf, id);
 928
 929         /* interface numbers are hardcoded in the spec */
 930         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 931                 return -ENODEV;
 932
 933         if (!id->driver_info) {
 934                 const struct usb_device_id *match;
 935                 match = usb_match_id(intf, blacklist_table);
 936                 if (match)
 937                         id = match;
 938         }
 939
 940         if (id->driver_info == BTUSB_IGNORE)
 941                 return -ENODEV;
 942
 943         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 944                 return -ENODEV;
 945
 946         if (ignore_csr && id->driver_info & BTUSB_CSR)
 947                 return -ENODEV;
 948
 949         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 950                 return -ENODEV;
 951
 952         if (id->driver_info & BTUSB_ATH3012) {
 953                 struct usb_device *udev = interface_to_usbdev(intf);
 954
 955                 /* Old firmware would otherwise let ath3k driver load
 956                  * patch and sysconfig files */
 957                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 958                         return -ENODEV;
 959         }
 960
 961         data = kzalloc(sizeof(*data), GFP_KERNEL);
 962         if (!data)
 963                 return -ENOMEM;
 964
 965         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 966                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 967
 968                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 969                         data->intr_ep = ep_desc;
 970                         continue;
 971                 }
 972
 973                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 974                         data->bulk_tx_ep = ep_desc;
 975                         continue;
 976                 }
 977
 978                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 979                         data->bulk_rx_ep = ep_desc;
 980                         continue;
 981                 }
 982         }
 983
 984         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 985                 kfree(data);
 986                 return -ENODEV;
 987         }
 988
 989         data->cmdreq_type = USB_TYPE_CLASS;
 990
 991         data->udev = interface_to_usbdev(intf);
 992         data->intf = intf;
 993
 994         spin_lock_init(&data->lock);
 995
 996         INIT_WORK(&data->work, btusb_work);
 997         INIT_WORK(&data->waker, btusb_waker);
 998         spin_lock_init(&data->txlock);
 999
1000         init_usb_anchor(&data->tx_anchor);
1001         init_usb_anchor(&data->intr_anchor);
1002         init_usb_anchor(&data->bulk_anchor);
1003         init_usb_anchor(&data->isoc_anchor);
1004         init_usb_anchor(&data->deferred);
1005
1006         hdev = hci_alloc_dev();
1007         if (!hdev) {
1008                 kfree(data);
1009                 return -ENOMEM;
1010         }
1011
1012         hdev->bus = HCI_USB;
1013         hci_set_drvdata(hdev, data);
1014
1015         data->hdev = hdev;
1016
1017         SET_HCIDEV_DEV(hdev, &intf->dev);
1018
1019         hdev->open     = btusb_open;
1020         hdev->close    = btusb_close;
1021         hdev->flush    = btusb_flush;
1022         hdev->send     = btusb_send_frame;
1023         hdev->notify   = btusb_notify;
1024
1025         /* Interface numbers are hardcoded in the specification */
1026         data->isoc = usb_ifnum_to_if(data->udev, 1);
1027
1028         if (!reset)
1029                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1030
1031         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1032                 if (!disable_scofix)
1033                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1034         }
1035
1036         if (id->driver_info & BTUSB_BROKEN_ISOC)
1037                 data->isoc = NULL;
1038
1039         if (id->driver_info & BTUSB_DIGIANSWER) {
1040                 data->cmdreq_type = USB_TYPE_VENDOR;
1041                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1042         }
1043
1044         if (id->driver_info & BTUSB_CSR) {
1045                 struct usb_device *udev = data->udev;
1046
1047                 /* Old firmware would otherwise execute USB reset */
1048                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1049                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1050         }
1051
1052         if (id->driver_info & BTUSB_SNIFFER) {
1053                 struct usb_device *udev = data->udev;
1054
1055                 /* New sniffer firmware has crippled HCI interface */
1056                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1057                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1058
1059                 data->isoc = NULL;
1060         }
1061
1062         if (id->driver_info & BTUSB_BCM92035) {
1063                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1064                 struct sk_buff *skb;
1065
1066                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1067                 if (skb) {
1068                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1069                         skb_queue_tail(&hdev->driver_init, skb);
1070                 }
1071         }
1072
1073         if (data->isoc) {
1074                 err = usb_driver_claim_interface(&btusb_driver,
1075                                                         data->isoc, data);
1076                 if (err < 0) {
1077                         hci_free_dev(hdev);
1078                         kfree(data);
1079                         return err;
1080                 }
1081         }
1082
1083         err = hci_register_dev(hdev);
1084         if (err < 0) {
1085                 hci_free_dev(hdev);
1086                 kfree(data);
1087                 return err;
1088         }
1089
1090         usb_set_intfdata(intf, data);
1091
1092         return 0;
1093 }
1094
1095 static void btusb_disconnect(struct usb_interface *intf)
1096 {
1097         struct btusb_data *data = usb_get_intfdata(intf);
1098         struct hci_dev *hdev;
1099
1100         BT_DBG("intf %p", intf);
1101
1102         if (!data)
1103                 return;
1104
1105         hdev = data->hdev;
1106         usb_set_intfdata(data->intf, NULL);
1107
1108         if (data->isoc)
1109                 usb_set_intfdata(data->isoc, NULL);
1110
1111         hci_unregister_dev(hdev);
1112
1113         if (intf == data->isoc)
1114                 usb_driver_release_interface(&btusb_driver, data->intf);
1115         else if (data->isoc)
1116                 usb_driver_release_interface(&btusb_driver, data->isoc);
1117
1118         hci_free_dev(hdev);
1119         kfree(data);
1120 }
1121
1122 #ifdef CONFIG_PM
1123 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1124 {
1125         struct btusb_data *data = usb_get_intfdata(intf);
1126
1127         BT_DBG("intf %p", intf);
1128
1129         if (data->suspend_count++)
1130                 return 0;
1131
1132         spin_lock_irq(&data->txlock);
1133         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1134                 set_bit(BTUSB_SUSPENDING, &data->flags);
1135                 spin_unlock_irq(&data->txlock);
1136         } else {
1137                 spin_unlock_irq(&data->txlock);
1138                 data->suspend_count--;
1139                 return -EBUSY;
1140         }
1141
1142         cancel_work_sync(&data->work);
1143
1144         btusb_stop_traffic(data);
1145         usb_kill_anchored_urbs(&data->tx_anchor);
1146
1147         return 0;
1148 }
1149
1150 static void play_deferred(struct btusb_data *data)
1151 {
1152         struct urb *urb;
1153         int err;
1154
1155         while ((urb = usb_get_from_anchor(&data->deferred))) {
1156                 err = usb_submit_urb(urb, GFP_ATOMIC);
1157                 if (err < 0)
1158                         break;
1159
1160                 data->tx_in_flight++;
1161         }
1162         usb_scuttle_anchored_urbs(&data->deferred);
1163 }
1164
1165 static int btusb_resume(struct usb_interface *intf)
1166 {
1167         struct btusb_data *data = usb_get_intfdata(intf);
1168         struct hci_dev *hdev = data->hdev;
1169         int err = 0;
1170
1171         BT_DBG("intf %p", intf);
1172
1173         if (--data->suspend_count)
1174                 return 0;
1175
1176         if (!test_bit(HCI_RUNNING, &hdev->flags))
1177                 goto done;
1178
1179         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1180                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1181                 if (err < 0) {
1182                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1183                         goto failed;
1184                 }
1185         }
1186
1187         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1188                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1189                 if (err < 0) {
1190                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1191                         goto failed;
1192                 }
1193
1194                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1195         }
1196
1197         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1198                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1199                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1200                 else
1201                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1202         }
1203
1204         spin_lock_irq(&data->txlock);
1205         play_deferred(data);
1206         clear_bit(BTUSB_SUSPENDING, &data->flags);
1207         spin_unlock_irq(&data->txlock);
1208         schedule_work(&data->work);
1209
1210         return 0;
1211
1212 failed:
1213         usb_scuttle_anchored_urbs(&data->deferred);
1214 done:
1215         spin_lock_irq(&data->txlock);
1216         clear_bit(BTUSB_SUSPENDING, &data->flags);
1217         spin_unlock_irq(&data->txlock);
1218
1219         return err;
1220 }
1221 #endif
1222
1223 static struct usb_driver btusb_driver = {
1224         .name           = "btusb",
1225         .probe          = btusb_probe,
1226         .disconnect     = btusb_disconnect,
1227 #ifdef CONFIG_PM
1228         .suspend        = btusb_suspend,
1229         .resume         = btusb_resume,
1230 #endif
1231         .id_table       = btusb_table,
1232         .supports_autosuspend = 1,
1233         .disable_hub_initiated_lpm = 1,
1234 };
1235
1236 module_usb_driver(btusb_driver);
1237
1238 module_param(ignore_dga, bool, 0644);
1239 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1240
1241 module_param(ignore_csr, bool, 0644);
1242 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1243
1244 module_param(ignore_sniffer, bool, 0644);
1245 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1246
1247 module_param(disable_scofix, bool, 0644);
1248 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1249
1250 module_param(force_scofix, bool, 0644);
1251 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1252
1253 module_param(reset, bool, 0644);
1254 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1255
1256 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1257 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1258 MODULE_VERSION(VERSION);
1259 MODULE_LICENSE("GPL");