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/module.h>
  25 #include <linux/usb.h>
  26
  27 #include <net/bluetooth/bluetooth.h>
  28 #include <net/bluetooth/hci_core.h>
  29
  30 #define VERSION "0.6"
  31
  32 static bool ignore_dga;
  33 static bool ignore_csr;
  34 static bool ignore_sniffer;
  35 static bool disable_scofix;
  36 static bool force_scofix;
  37
  38 static bool reset = 1;
  39
  40 static struct usb_driver btusb_driver;
  41
  42 #define BTUSB_IGNORE            0x01
  43 #define BTUSB_DIGIANSWER        0x02
  44 #define BTUSB_CSR               0x04
  45 #define BTUSB_SNIFFER           0x08
  46 #define BTUSB_BCM92035          0x10
  47 #define BTUSB_BROKEN_ISOC       0x20
  48 #define BTUSB_WRONG_SCO_MTU     0x40
  49 #define BTUSB_ATH3012           0x80
  50
  51 static struct usb_device_id btusb_table[] = {
  52         /* Generic Bluetooth USB device */
  53         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  54
  55         /* Broadcom SoftSailing reporting vendor specific */
  56         { USB_DEVICE(0x0a5c, 0x21e1) },
  57
  58         /* Apple MacBookPro 7,1 */
  59         { USB_DEVICE(0x05ac, 0x8213) },
  60
  61         /* Apple iMac11,1 */
  62         { USB_DEVICE(0x05ac, 0x8215) },
  63
  64         /* Apple MacBookPro6,2 */
  65         { USB_DEVICE(0x05ac, 0x8218) },
  66
  67         /* Apple MacBookAir3,1, MacBookAir3,2 */
  68         { USB_DEVICE(0x05ac, 0x821b) },
  69
  70         /* Apple MacBookAir4,1 */
  71         { USB_DEVICE(0x05ac, 0x821f) },
  72
  73         /* Apple MacBookPro8,2 */
  74         { USB_DEVICE(0x05ac, 0x821a) },
  75
  76         /* Apple MacMini5,1 */
  77         { USB_DEVICE(0x05ac, 0x8281) },
  78
  79         /* AVM BlueFRITZ! USB v2.0 */
  80         { USB_DEVICE(0x057c, 0x3800) },
  81
  82         /* Bluetooth Ultraport Module from IBM */
  83         { USB_DEVICE(0x04bf, 0x030a) },
  84
  85         /* ALPS Modules with non-standard id */
  86         { USB_DEVICE(0x044e, 0x3001) },
  87         { USB_DEVICE(0x044e, 0x3002) },
  88
  89         /* Ericsson with non-standard id */
  90         { USB_DEVICE(0x0bdb, 0x1002) },
  91
  92         /* Canyon CN-BTU1 with HID interfaces */
  93         { USB_DEVICE(0x0c10, 0x0000) },
  94
  95         /* Broadcom BCM20702A0 */
  96         { USB_DEVICE(0x04ca, 0x2003) },
  97         { USB_DEVICE(0x0489, 0xe042) },
  98         { USB_DEVICE(0x0a5c, 0x21e3) },
  99         { USB_DEVICE(0x0a5c, 0x21e6) },
 100         { USB_DEVICE(0x0a5c, 0x21e8) },
 101         { USB_DEVICE(0x0a5c, 0x21f3) },
 102         { USB_DEVICE(0x413c, 0x8197) },
 103
 104         /* Foxconn - Hon Hai */
 105         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 106
 107         { }     /* Terminating entry */
 108 };
 109
 110 MODULE_DEVICE_TABLE(usb, btusb_table);
 111
 112 static struct usb_device_id blacklist_table[] = {
 113         /* CSR BlueCore devices */
 114         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 115
 116         /* Broadcom BCM2033 without firmware */
 117         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 118
 119         /* Atheros 3011 with sflash firmware */
 120         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 121         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 122         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 123         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 124         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 125
 126         /* Atheros AR9285 Malbec with sflash firmware */
 127         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 128
 129         /* Atheros 3012 with sflash firmware */
 130         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 131         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 132         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 133         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 134         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 135         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 136         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 137
 138         /* Atheros AR5BBU12 with sflash firmware */
 139         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 140
 141         /* Atheros AR5BBU12 with sflash firmware */
 142         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 143
 144         /* Broadcom BCM2035 */
 145         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 146         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 147         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 148
 149         /* Broadcom BCM2045 */
 150         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 151         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 152
 153         /* IBM/Lenovo ThinkPad with Broadcom chip */
 154         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 155         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 156
 157         /* HP laptop with Broadcom chip */
 158         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 159
 160         /* Dell laptop with Broadcom chip */
 161         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 162
 163         /* Dell Wireless 370 and 410 devices */
 164         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 165         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 166
 167         /* Belkin F8T012 and F8T013 devices */
 168         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 169         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 170
 171         /* Asus WL-BTD202 device */
 172         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 173
 174         /* Kensington Bluetooth USB adapter */
 175         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 176
 177         /* RTX Telecom based adapters with buggy SCO support */
 178         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 179         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 180
 181         /* CONWISE Technology based adapters with buggy SCO support */
 182         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 183
 184         /* Digianswer devices */
 185         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 186         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 187
 188         /* CSR BlueCore Bluetooth Sniffer */
 189         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 190
 191         /* Frontline ComProbe Bluetooth Sniffer */
 192         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 193
 194         { }     /* Terminating entry */
 195 };
 196
 197 #define BTUSB_MAX_ISOC_FRAMES   10
 198
 199 #define BTUSB_INTR_RUNNING      0
 200 #define BTUSB_BULK_RUNNING      1
 201 #define BTUSB_ISOC_RUNNING      2
 202 #define BTUSB_SUSPENDING        3
 203 #define BTUSB_DID_ISO_RESUME    4
 204
 205 struct btusb_data {
 206         struct hci_dev       *hdev;
 207         struct usb_device    *udev;
 208         struct usb_interface *intf;
 209         struct usb_interface *isoc;
 210
 211         spinlock_t lock;
 212
 213         unsigned long flags;
 214
 215         struct work_struct work;
 216         struct work_struct waker;
 217
 218         struct usb_anchor tx_anchor;
 219         struct usb_anchor intr_anchor;
 220         struct usb_anchor bulk_anchor;
 221         struct usb_anchor isoc_anchor;
 222         struct usb_anchor deferred;
 223         int tx_in_flight;
 224         spinlock_t txlock;
 225
 226         struct usb_endpoint_descriptor *intr_ep;
 227         struct usb_endpoint_descriptor *bulk_tx_ep;
 228         struct usb_endpoint_descriptor *bulk_rx_ep;
 229         struct usb_endpoint_descriptor *isoc_tx_ep;
 230         struct usb_endpoint_descriptor *isoc_rx_ep;
 231
 232         __u8 cmdreq_type;
 233
 234         unsigned int sco_num;
 235         int isoc_altsetting;
 236         int suspend_count;
 237 };
 238
 239 static int inc_tx(struct btusb_data *data)
 240 {
 241         unsigned long flags;
 242         int rv;
 243
 244         spin_lock_irqsave(&data->txlock, flags);
 245         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 246         if (!rv)
 247                 data->tx_in_flight++;
 248         spin_unlock_irqrestore(&data->txlock, flags);
 249
 250         return rv;
 251 }
 252
 253 static void btusb_intr_complete(struct urb *urb)
 254 {
 255         struct hci_dev *hdev = urb->context;
 256         struct btusb_data *data = hci_get_drvdata(hdev);
 257         int err;
 258
 259         BT_DBG("%s urb %p status %d count %d", hdev->name,
 260                                         urb, urb->status, urb->actual_length);
 261
 262         if (!test_bit(HCI_RUNNING, &hdev->flags))
 263                 return;
 264
 265         if (urb->status == 0) {
 266                 hdev->stat.byte_rx += urb->actual_length;
 267
 268                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 269                                                 urb->transfer_buffer,
 270                                                 urb->actual_length) < 0) {
 271                         BT_ERR("%s corrupted event packet", hdev->name);
 272                         hdev->stat.err_rx++;
 273                 }
 274         }
 275
 276         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 277                 return;
 278
 279         usb_mark_last_busy(data->udev);
 280         usb_anchor_urb(urb, &data->intr_anchor);
 281
 282         err = usb_submit_urb(urb, GFP_ATOMIC);
 283         if (err < 0) {
 284                 /* -EPERM: urb is being killed;
 285                  * -ENODEV: device got disconnected */
 286                 if (err != -EPERM && err != -ENODEV)
 287                         BT_ERR("%s urb %p failed to resubmit (%d)",
 288                                                 hdev->name, urb, -err);
 289                 usb_unanchor_urb(urb);
 290         }
 291 }
 292
 293 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 294 {
 295         struct btusb_data *data = hci_get_drvdata(hdev);
 296         struct urb *urb;
 297         unsigned char *buf;
 298         unsigned int pipe;
 299         int err, size;
 300
 301         BT_DBG("%s", hdev->name);
 302
 303         if (!data->intr_ep)
 304                 return -ENODEV;
 305
 306         urb = usb_alloc_urb(0, mem_flags);
 307         if (!urb)
 308                 return -ENOMEM;
 309
 310         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 311
 312         buf = kmalloc(size, mem_flags);
 313         if (!buf) {
 314                 usb_free_urb(urb);
 315                 return -ENOMEM;
 316         }
 317
 318         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 319
 320         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 321                                                 btusb_intr_complete, hdev,
 322                                                 data->intr_ep->bInterval);
 323
 324         urb->transfer_flags |= URB_FREE_BUFFER;
 325
 326         usb_anchor_urb(urb, &data->intr_anchor);
 327
 328         err = usb_submit_urb(urb, mem_flags);
 329         if (err < 0) {
 330                 if (err != -EPERM && err != -ENODEV)
 331                         BT_ERR("%s urb %p submission failed (%d)",
 332                                                 hdev->name, urb, -err);
 333                 usb_unanchor_urb(urb);
 334         }
 335
 336         usb_free_urb(urb);
 337
 338         return err;
 339 }
 340
 341 static void btusb_bulk_complete(struct urb *urb)
 342 {
 343         struct hci_dev *hdev = urb->context;
 344         struct btusb_data *data = hci_get_drvdata(hdev);
 345         int err;
 346
 347         BT_DBG("%s urb %p status %d count %d", hdev->name,
 348                                         urb, urb->status, urb->actual_length);
 349
 350         if (!test_bit(HCI_RUNNING, &hdev->flags))
 351                 return;
 352
 353         if (urb->status == 0) {
 354                 hdev->stat.byte_rx += urb->actual_length;
 355
 356                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 357                                                 urb->transfer_buffer,
 358                                                 urb->actual_length) < 0) {
 359                         BT_ERR("%s corrupted ACL packet", hdev->name);
 360                         hdev->stat.err_rx++;
 361                 }
 362         }
 363
 364         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 365                 return;
 366
 367         usb_anchor_urb(urb, &data->bulk_anchor);
 368         usb_mark_last_busy(data->udev);
 369
 370         err = usb_submit_urb(urb, GFP_ATOMIC);
 371         if (err < 0) {
 372                 /* -EPERM: urb is being killed;
 373                  * -ENODEV: device got disconnected */
 374                 if (err != -EPERM && err != -ENODEV)
 375                         BT_ERR("%s urb %p failed to resubmit (%d)",
 376                                                 hdev->name, urb, -err);
 377                 usb_unanchor_urb(urb);
 378         }
 379 }
 380
 381 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 382 {
 383         struct btusb_data *data = hci_get_drvdata(hdev);
 384         struct urb *urb;
 385         unsigned char *buf;
 386         unsigned int pipe;
 387         int err, size = HCI_MAX_FRAME_SIZE;
 388
 389         BT_DBG("%s", hdev->name);
 390
 391         if (!data->bulk_rx_ep)
 392                 return -ENODEV;
 393
 394         urb = usb_alloc_urb(0, mem_flags);
 395         if (!urb)
 396                 return -ENOMEM;
 397
 398         buf = kmalloc(size, mem_flags);
 399         if (!buf) {
 400                 usb_free_urb(urb);
 401                 return -ENOMEM;
 402         }
 403
 404         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 405
 406         usb_fill_bulk_urb(urb, data->udev, pipe,
 407                                         buf, size, btusb_bulk_complete, hdev);
 408
 409         urb->transfer_flags |= URB_FREE_BUFFER;
 410
 411         usb_mark_last_busy(data->udev);
 412         usb_anchor_urb(urb, &data->bulk_anchor);
 413
 414         err = usb_submit_urb(urb, mem_flags);
 415         if (err < 0) {
 416                 if (err != -EPERM && err != -ENODEV)
 417                         BT_ERR("%s urb %p submission failed (%d)",
 418                                                 hdev->name, urb, -err);
 419                 usb_unanchor_urb(urb);
 420         }
 421
 422         usb_free_urb(urb);
 423
 424         return err;
 425 }
 426
 427 static void btusb_isoc_complete(struct urb *urb)
 428 {
 429         struct hci_dev *hdev = urb->context;
 430         struct btusb_data *data = hci_get_drvdata(hdev);
 431         int i, err;
 432
 433         BT_DBG("%s urb %p status %d count %d", hdev->name,
 434                                         urb, urb->status, urb->actual_length);
 435
 436         if (!test_bit(HCI_RUNNING, &hdev->flags))
 437                 return;
 438
 439         if (urb->status == 0) {
 440                 for (i = 0; i < urb->number_of_packets; i++) {
 441                         unsigned int offset = urb->iso_frame_desc[i].offset;
 442                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 443
 444                         if (urb->iso_frame_desc[i].status)
 445                                 continue;
 446
 447                         hdev->stat.byte_rx += length;
 448
 449                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 450                                                 urb->transfer_buffer + offset,
 451                                                                 length) < 0) {
 452                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 453                                 hdev->stat.err_rx++;
 454                         }
 455                 }
 456         }
 457
 458         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 459                 return;
 460
 461         usb_anchor_urb(urb, &data->isoc_anchor);
 462
 463         err = usb_submit_urb(urb, GFP_ATOMIC);
 464         if (err < 0) {
 465                 /* -EPERM: urb is being killed;
 466                  * -ENODEV: device got disconnected */
 467                 if (err != -EPERM && err != -ENODEV)
 468                         BT_ERR("%s urb %p failed to resubmit (%d)",
 469                                                 hdev->name, urb, -err);
 470                 usb_unanchor_urb(urb);
 471         }
 472 }
 473
 474 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 475 {
 476         int i, offset = 0;
 477
 478         BT_DBG("len %d mtu %d", len, mtu);
 479
 480         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 481                                         i++, offset += mtu, len -= mtu) {
 482                 urb->iso_frame_desc[i].offset = offset;
 483                 urb->iso_frame_desc[i].length = mtu;
 484         }
 485
 486         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 487                 urb->iso_frame_desc[i].offset = offset;
 488                 urb->iso_frame_desc[i].length = len;
 489                 i++;
 490         }
 491
 492         urb->number_of_packets = i;
 493 }
 494
 495 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 496 {
 497         struct btusb_data *data = hci_get_drvdata(hdev);
 498         struct urb *urb;
 499         unsigned char *buf;
 500         unsigned int pipe;
 501         int err, size;
 502
 503         BT_DBG("%s", hdev->name);
 504
 505         if (!data->isoc_rx_ep)
 506                 return -ENODEV;
 507
 508         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 509         if (!urb)
 510                 return -ENOMEM;
 511
 512         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 513                                                 BTUSB_MAX_ISOC_FRAMES;
 514
 515         buf = kmalloc(size, mem_flags);
 516         if (!buf) {
 517                 usb_free_urb(urb);
 518                 return -ENOMEM;
 519         }
 520
 521         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 522
 523         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 524                                 hdev, data->isoc_rx_ep->bInterval);
 525
 526         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 527
 528         __fill_isoc_descriptor(urb, size,
 529                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 530
 531         usb_anchor_urb(urb, &data->isoc_anchor);
 532
 533         err = usb_submit_urb(urb, mem_flags);
 534         if (err < 0) {
 535                 if (err != -EPERM && err != -ENODEV)
 536                         BT_ERR("%s urb %p submission failed (%d)",
 537                                                 hdev->name, urb, -err);
 538                 usb_unanchor_urb(urb);
 539         }
 540
 541         usb_free_urb(urb);
 542
 543         return err;
 544 }
 545
 546 static void btusb_tx_complete(struct urb *urb)
 547 {
 548         struct sk_buff *skb = urb->context;
 549         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 550         struct btusb_data *data = hci_get_drvdata(hdev);
 551
 552         BT_DBG("%s urb %p status %d count %d", hdev->name,
 553                                         urb, urb->status, urb->actual_length);
 554
 555         if (!test_bit(HCI_RUNNING, &hdev->flags))
 556                 goto done;
 557
 558         if (!urb->status)
 559                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 560         else
 561                 hdev->stat.err_tx++;
 562
 563 done:
 564         spin_lock(&data->txlock);
 565         data->tx_in_flight--;
 566         spin_unlock(&data->txlock);
 567
 568         kfree(urb->setup_packet);
 569
 570         kfree_skb(skb);
 571 }
 572
 573 static void btusb_isoc_tx_complete(struct urb *urb)
 574 {
 575         struct sk_buff *skb = urb->context;
 576         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 577
 578         BT_DBG("%s urb %p status %d count %d", hdev->name,
 579                                         urb, urb->status, urb->actual_length);
 580
 581         if (!test_bit(HCI_RUNNING, &hdev->flags))
 582                 goto done;
 583
 584         if (!urb->status)
 585                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 586         else
 587                 hdev->stat.err_tx++;
 588
 589 done:
 590         kfree(urb->setup_packet);
 591
 592         kfree_skb(skb);
 593 }
 594
 595 static int btusb_open(struct hci_dev *hdev)
 596 {
 597         struct btusb_data *data = hci_get_drvdata(hdev);
 598         int err;
 599
 600         BT_DBG("%s", hdev->name);
 601
 602         err = usb_autopm_get_interface(data->intf);
 603         if (err < 0)
 604                 return err;
 605
 606         data->intf->needs_remote_wakeup = 1;
 607
 608         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 609                 goto done;
 610
 611         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 612                 goto done;
 613
 614         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 615         if (err < 0)
 616                 goto failed;
 617
 618         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 619         if (err < 0) {
 620                 usb_kill_anchored_urbs(&data->intr_anchor);
 621                 goto failed;
 622         }
 623
 624         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 625         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 626
 627 done:
 628         usb_autopm_put_interface(data->intf);
 629         return 0;
 630
 631 failed:
 632         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 633         clear_bit(HCI_RUNNING, &hdev->flags);
 634         usb_autopm_put_interface(data->intf);
 635         return err;
 636 }
 637
 638 static void btusb_stop_traffic(struct btusb_data *data)
 639 {
 640         usb_kill_anchored_urbs(&data->intr_anchor);
 641         usb_kill_anchored_urbs(&data->bulk_anchor);
 642         usb_kill_anchored_urbs(&data->isoc_anchor);
 643 }
 644
 645 static int btusb_close(struct hci_dev *hdev)
 646 {
 647         struct btusb_data *data = hci_get_drvdata(hdev);
 648         int err;
 649
 650         BT_DBG("%s", hdev->name);
 651
 652         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 653                 return 0;
 654
 655         cancel_work_sync(&data->work);
 656         cancel_work_sync(&data->waker);
 657
 658         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 659         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 660         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 661
 662         btusb_stop_traffic(data);
 663         err = usb_autopm_get_interface(data->intf);
 664         if (err < 0)
 665                 goto failed;
 666
 667         data->intf->needs_remote_wakeup = 0;
 668         usb_autopm_put_interface(data->intf);
 669
 670 failed:
 671         usb_scuttle_anchored_urbs(&data->deferred);
 672         return 0;
 673 }
 674
 675 static int btusb_flush(struct hci_dev *hdev)
 676 {
 677         struct btusb_data *data = hci_get_drvdata(hdev);
 678
 679         BT_DBG("%s", hdev->name);
 680
 681         usb_kill_anchored_urbs(&data->tx_anchor);
 682
 683         return 0;
 684 }
 685
 686 static int btusb_send_frame(struct sk_buff *skb)
 687 {
 688         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 689         struct btusb_data *data = hci_get_drvdata(hdev);
 690         struct usb_ctrlrequest *dr;
 691         struct urb *urb;
 692         unsigned int pipe;
 693         int err;
 694
 695         BT_DBG("%s", hdev->name);
 696
 697         if (!test_bit(HCI_RUNNING, &hdev->flags))
 698                 return -EBUSY;
 699
 700         switch (bt_cb(skb)->pkt_type) {
 701         case HCI_COMMAND_PKT:
 702                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 703                 if (!urb)
 704                         return -ENOMEM;
 705
 706                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 707                 if (!dr) {
 708                         usb_free_urb(urb);
 709                         return -ENOMEM;
 710                 }
 711
 712                 dr->bRequestType = data->cmdreq_type;
 713                 dr->bRequest     = 0;
 714                 dr->wIndex       = 0;
 715                 dr->wValue       = 0;
 716                 dr->wLength      = __cpu_to_le16(skb->len);
 717
 718                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 719
 720                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 721                                 skb->data, skb->len, btusb_tx_complete, skb);
 722
 723                 hdev->stat.cmd_tx++;
 724                 break;
 725
 726         case HCI_ACLDATA_PKT:
 727                 if (!data->bulk_tx_ep)
 728                         return -ENODEV;
 729
 730                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 731                 if (!urb)
 732                         return -ENOMEM;
 733
 734                 pipe = usb_sndbulkpipe(data->udev,
 735                                         data->bulk_tx_ep->bEndpointAddress);
 736
 737                 usb_fill_bulk_urb(urb, data->udev, pipe,
 738                                 skb->data, skb->len, btusb_tx_complete, skb);
 739
 740                 hdev->stat.acl_tx++;
 741                 break;
 742
 743         case HCI_SCODATA_PKT:
 744                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 745                         return -ENODEV;
 746
 747                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 748                 if (!urb)
 749                         return -ENOMEM;
 750
 751                 pipe = usb_sndisocpipe(data->udev,
 752                                         data->isoc_tx_ep->bEndpointAddress);
 753
 754                 usb_fill_int_urb(urb, data->udev, pipe,
 755                                 skb->data, skb->len, btusb_isoc_tx_complete,
 756                                 skb, data->isoc_tx_ep->bInterval);
 757
 758                 urb->transfer_flags  = URB_ISO_ASAP;
 759
 760                 __fill_isoc_descriptor(urb, skb->len,
 761                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 762
 763                 hdev->stat.sco_tx++;
 764                 goto skip_waking;
 765
 766         default:
 767                 return -EILSEQ;
 768         }
 769
 770         err = inc_tx(data);
 771         if (err) {
 772                 usb_anchor_urb(urb, &data->deferred);
 773                 schedule_work(&data->waker);
 774                 err = 0;
 775                 goto done;
 776         }
 777
 778 skip_waking:
 779         usb_anchor_urb(urb, &data->tx_anchor);
 780
 781         err = usb_submit_urb(urb, GFP_ATOMIC);
 782         if (err < 0) {
 783                 if (err != -EPERM && err != -ENODEV)
 784                         BT_ERR("%s urb %p submission failed (%d)",
 785                                                 hdev->name, urb, -err);
 786                 kfree(urb->setup_packet);
 787                 usb_unanchor_urb(urb);
 788         } else {
 789                 usb_mark_last_busy(data->udev);
 790         }
 791
 792 done:
 793         usb_free_urb(urb);
 794         return err;
 795 }
 796
 797 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 798 {
 799         struct btusb_data *data = hci_get_drvdata(hdev);
 800
 801         BT_DBG("%s evt %d", hdev->name, evt);
 802
 803         if (hdev->conn_hash.sco_num != data->sco_num) {
 804                 data->sco_num = hdev->conn_hash.sco_num;
 805                 schedule_work(&data->work);
 806         }
 807 }
 808
 809 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 810 {
 811         struct btusb_data *data = hci_get_drvdata(hdev);
 812         struct usb_interface *intf = data->isoc;
 813         struct usb_endpoint_descriptor *ep_desc;
 814         int i, err;
 815
 816         if (!data->isoc)
 817                 return -ENODEV;
 818
 819         err = usb_set_interface(data->udev, 1, altsetting);
 820         if (err < 0) {
 821                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 822                 return err;
 823         }
 824
 825         data->isoc_altsetting = altsetting;
 826
 827         data->isoc_tx_ep = NULL;
 828         data->isoc_rx_ep = NULL;
 829
 830         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 831                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 832
 833                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 834                         data->isoc_tx_ep = ep_desc;
 835                         continue;
 836                 }
 837
 838                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 839                         data->isoc_rx_ep = ep_desc;
 840                         continue;
 841                 }
 842         }
 843
 844         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 845                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 846                 return -ENODEV;
 847         }
 848
 849         return 0;
 850 }
 851
 852 static void btusb_work(struct work_struct *work)
 853 {
 854         struct btusb_data *data = container_of(work, struct btusb_data, work);
 855         struct hci_dev *hdev = data->hdev;
 856         int new_alts;
 857         int err;
 858
 859         if (hdev->conn_hash.sco_num > 0) {
 860                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 861                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 862                         if (err < 0) {
 863                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 864                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 865                                 return;
 866                         }
 867
 868                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 869                 }
 870
 871                 if (hdev->voice_setting & 0x0020) {
 872                         static const int alts[3] = { 2, 4, 5 };
 873                         new_alts = alts[hdev->conn_hash.sco_num - 1];
 874                 } else {
 875                         new_alts = hdev->conn_hash.sco_num;
 876                 }
 877
 878                 if (data->isoc_altsetting != new_alts) {
 879                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 880                         usb_kill_anchored_urbs(&data->isoc_anchor);
 881
 882                         if (__set_isoc_interface(hdev, new_alts) < 0)
 883                                 return;
 884                 }
 885
 886                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 887                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 888                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 889                         else
 890                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 891                 }
 892         } else {
 893                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 894                 usb_kill_anchored_urbs(&data->isoc_anchor);
 895
 896                 __set_isoc_interface(hdev, 0);
 897                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 898                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 899         }
 900 }
 901
 902 static void btusb_waker(struct work_struct *work)
 903 {
 904         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 905         int err;
 906
 907         err = usb_autopm_get_interface(data->intf);
 908         if (err < 0)
 909                 return;
 910
 911         usb_autopm_put_interface(data->intf);
 912 }
 913
 914 static int btusb_probe(struct usb_interface *intf,
 915                                 const struct usb_device_id *id)
 916 {
 917         struct usb_endpoint_descriptor *ep_desc;
 918         struct btusb_data *data;
 919         struct hci_dev *hdev;
 920         int i, err;
 921
 922         BT_DBG("intf %p id %p", intf, id);
 923
 924         /* interface numbers are hardcoded in the spec */
 925         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 926                 return -ENODEV;
 927
 928         if (!id->driver_info) {
 929                 const struct usb_device_id *match;
 930                 match = usb_match_id(intf, blacklist_table);
 931                 if (match)
 932                         id = match;
 933         }
 934
 935         if (id->driver_info == BTUSB_IGNORE)
 936                 return -ENODEV;
 937
 938         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 939                 return -ENODEV;
 940
 941         if (ignore_csr && id->driver_info & BTUSB_CSR)
 942                 return -ENODEV;
 943
 944         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 945                 return -ENODEV;
 946
 947         if (id->driver_info & BTUSB_ATH3012) {
 948                 struct usb_device *udev = interface_to_usbdev(intf);
 949
 950                 /* Old firmware would otherwise let ath3k driver load
 951                  * patch and sysconfig files */
 952                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 953                         return -ENODEV;
 954         }
 955
 956         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
 957         if (!data)
 958                 return -ENOMEM;
 959
 960         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 961                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 962
 963                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 964                         data->intr_ep = ep_desc;
 965                         continue;
 966                 }
 967
 968                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 969                         data->bulk_tx_ep = ep_desc;
 970                         continue;
 971                 }
 972
 973                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 974                         data->bulk_rx_ep = ep_desc;
 975                         continue;
 976                 }
 977         }
 978
 979         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
 980                 return -ENODEV;
 981
 982         data->cmdreq_type = USB_TYPE_CLASS;
 983
 984         data->udev = interface_to_usbdev(intf);
 985         data->intf = intf;
 986
 987         spin_lock_init(&data->lock);
 988
 989         INIT_WORK(&data->work, btusb_work);
 990         INIT_WORK(&data->waker, btusb_waker);
 991         spin_lock_init(&data->txlock);
 992
 993         init_usb_anchor(&data->tx_anchor);
 994         init_usb_anchor(&data->intr_anchor);
 995         init_usb_anchor(&data->bulk_anchor);
 996         init_usb_anchor(&data->isoc_anchor);
 997         init_usb_anchor(&data->deferred);
 998
 999         hdev = hci_alloc_dev();
1000         if (!hdev)
1001                 return -ENOMEM;
1002
1003         hdev->bus = HCI_USB;
1004         hci_set_drvdata(hdev, data);
1005
1006         data->hdev = hdev;
1007
1008         SET_HCIDEV_DEV(hdev, &intf->dev);
1009
1010         hdev->open     = btusb_open;
1011         hdev->close    = btusb_close;
1012         hdev->flush    = btusb_flush;
1013         hdev->send     = btusb_send_frame;
1014         hdev->notify   = btusb_notify;
1015
1016         /* Interface numbers are hardcoded in the specification */
1017         data->isoc = usb_ifnum_to_if(data->udev, 1);
1018
1019         if (!reset)
1020                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1021
1022         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1023                 if (!disable_scofix)
1024                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1025         }
1026
1027         if (id->driver_info & BTUSB_BROKEN_ISOC)
1028                 data->isoc = NULL;
1029
1030         if (id->driver_info & BTUSB_DIGIANSWER) {
1031                 data->cmdreq_type = USB_TYPE_VENDOR;
1032                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1033         }
1034
1035         if (id->driver_info & BTUSB_CSR) {
1036                 struct usb_device *udev = data->udev;
1037
1038                 /* Old firmware would otherwise execute USB reset */
1039                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1040                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1041         }
1042
1043         if (id->driver_info & BTUSB_SNIFFER) {
1044                 struct usb_device *udev = data->udev;
1045
1046                 /* New sniffer firmware has crippled HCI interface */
1047                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1048                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1049
1050                 data->isoc = NULL;
1051         }
1052
1053         if (id->driver_info & BTUSB_BCM92035) {
1054                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1055                 struct sk_buff *skb;
1056
1057                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1058                 if (skb) {
1059                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1060                         skb_queue_tail(&hdev->driver_init, skb);
1061                 }
1062         }
1063
1064         if (data->isoc) {
1065                 err = usb_driver_claim_interface(&btusb_driver,
1066                                                         data->isoc, data);
1067                 if (err < 0) {
1068                         hci_free_dev(hdev);
1069                         return err;
1070                 }
1071         }
1072
1073         err = hci_register_dev(hdev);
1074         if (err < 0) {
1075                 hci_free_dev(hdev);
1076                 return err;
1077         }
1078
1079         usb_set_intfdata(intf, data);
1080
1081         return 0;
1082 }
1083
1084 static void btusb_disconnect(struct usb_interface *intf)
1085 {
1086         struct btusb_data *data = usb_get_intfdata(intf);
1087         struct hci_dev *hdev;
1088
1089         BT_DBG("intf %p", intf);
1090
1091         if (!data)
1092                 return;
1093
1094         hdev = data->hdev;
1095         usb_set_intfdata(data->intf, NULL);
1096
1097         if (data->isoc)
1098                 usb_set_intfdata(data->isoc, NULL);
1099
1100         hci_unregister_dev(hdev);
1101
1102         if (intf == data->isoc)
1103                 usb_driver_release_interface(&btusb_driver, data->intf);
1104         else if (data->isoc)
1105                 usb_driver_release_interface(&btusb_driver, data->isoc);
1106
1107         hci_free_dev(hdev);
1108 }
1109
1110 #ifdef CONFIG_PM
1111 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1112 {
1113         struct btusb_data *data = usb_get_intfdata(intf);
1114
1115         BT_DBG("intf %p", intf);
1116
1117         if (data->suspend_count++)
1118                 return 0;
1119
1120         spin_lock_irq(&data->txlock);
1121         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1122                 set_bit(BTUSB_SUSPENDING, &data->flags);
1123                 spin_unlock_irq(&data->txlock);
1124         } else {
1125                 spin_unlock_irq(&data->txlock);
1126                 data->suspend_count--;
1127                 return -EBUSY;
1128         }
1129
1130         cancel_work_sync(&data->work);
1131
1132         btusb_stop_traffic(data);
1133         usb_kill_anchored_urbs(&data->tx_anchor);
1134
1135         return 0;
1136 }
1137
1138 static void play_deferred(struct btusb_data *data)
1139 {
1140         struct urb *urb;
1141         int err;
1142
1143         while ((urb = usb_get_from_anchor(&data->deferred))) {
1144                 err = usb_submit_urb(urb, GFP_ATOMIC);
1145                 if (err < 0)
1146                         break;
1147
1148                 data->tx_in_flight++;
1149         }
1150         usb_scuttle_anchored_urbs(&data->deferred);
1151 }
1152
1153 static int btusb_resume(struct usb_interface *intf)
1154 {
1155         struct btusb_data *data = usb_get_intfdata(intf);
1156         struct hci_dev *hdev = data->hdev;
1157         int err = 0;
1158
1159         BT_DBG("intf %p", intf);
1160
1161         if (--data->suspend_count)
1162                 return 0;
1163
1164         if (!test_bit(HCI_RUNNING, &hdev->flags))
1165                 goto done;
1166
1167         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1168                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1169                 if (err < 0) {
1170                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1171                         goto failed;
1172                 }
1173         }
1174
1175         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1176                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1177                 if (err < 0) {
1178                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1179                         goto failed;
1180                 }
1181
1182                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1183         }
1184
1185         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1186                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1187                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1188                 else
1189                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1190         }
1191
1192         spin_lock_irq(&data->txlock);
1193         play_deferred(data);
1194         clear_bit(BTUSB_SUSPENDING, &data->flags);
1195         spin_unlock_irq(&data->txlock);
1196         schedule_work(&data->work);
1197
1198         return 0;
1199
1200 failed:
1201         usb_scuttle_anchored_urbs(&data->deferred);
1202 done:
1203         spin_lock_irq(&data->txlock);
1204         clear_bit(BTUSB_SUSPENDING, &data->flags);
1205         spin_unlock_irq(&data->txlock);
1206
1207         return err;
1208 }
1209 #endif
1210
1211 static struct usb_driver btusb_driver = {
1212         .name           = "btusb",
1213         .probe          = btusb_probe,
1214         .disconnect     = btusb_disconnect,
1215 #ifdef CONFIG_PM
1216         .suspend        = btusb_suspend,
1217         .resume         = btusb_resume,
1218 #endif
1219         .id_table       = btusb_table,
1220         .supports_autosuspend = 1,
1221         .disable_hub_initiated_lpm = 1,
1222 };
1223
1224 module_usb_driver(btusb_driver);
1225
1226 module_param(ignore_dga, bool, 0644);
1227 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1228
1229 module_param(ignore_csr, bool, 0644);
1230 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1231
1232 module_param(ignore_sniffer, bool, 0644);
1233 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1234
1235 module_param(disable_scofix, bool, 0644);
1236 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1237
1238 module_param(force_scofix, bool, 0644);
1239 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1240
1241 module_param(reset, bool, 0644);
1242 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1243
1244 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1245 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1246 MODULE_VERSION(VERSION);
1247 MODULE_LICENSE("GPL");