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(0x0489, 0xe042) },
 108         { USB_DEVICE(0x413c, 0x8197) },
 109
 110         /* Foxconn - Hon Hai */
 111         { USB_DEVICE(0x0489, 0xe033) },
 112
 113         /*Broadcom devices with vendor specific id */
 114         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 115
 116         { }     /* Terminating entry */
 117 };
 118
 119 MODULE_DEVICE_TABLE(usb, btusb_table);
 120
 121 static struct usb_device_id blacklist_table[] = {
 122         /* CSR BlueCore devices */
 123         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 124
 125         /* Broadcom BCM2033 without firmware */
 126         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 127
 128         /* Atheros 3011 with sflash firmware */
 129         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 130         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 131         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 132         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 133         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 134
 135         /* Atheros AR9285 Malbec with sflash firmware */
 136         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 137
 138         /* Atheros 3012 with sflash firmware */
 139         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 145
 146         /* Atheros AR5BBU12 with sflash firmware */
 147         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 148
 149         /* Atheros AR5BBU12 with sflash firmware */
 150         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 151
 152         /* Broadcom BCM2035 */
 153         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 154         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 155         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 156
 157         /* Broadcom BCM2045 */
 158         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 159         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 160
 161         /* IBM/Lenovo ThinkPad with Broadcom chip */
 162         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 163         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 164
 165         /* HP laptop with Broadcom chip */
 166         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 167
 168         /* Dell laptop with Broadcom chip */
 169         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 170
 171         /* Dell Wireless 370 and 410 devices */
 172         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 173         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 174
 175         /* Belkin F8T012 and F8T013 devices */
 176         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 177         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 178
 179         /* Asus WL-BTD202 device */
 180         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 181
 182         /* Kensington Bluetooth USB adapter */
 183         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 184
 185         /* RTX Telecom based adapters with buggy SCO support */
 186         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 187         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 188
 189         /* CONWISE Technology based adapters with buggy SCO support */
 190         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 191
 192         /* Digianswer devices */
 193         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 194         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 195
 196         /* CSR BlueCore Bluetooth Sniffer */
 197         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 198
 199         /* Frontline ComProbe Bluetooth Sniffer */
 200         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 201
 202         { }     /* Terminating entry */
 203 };
 204
 205 #define BTUSB_MAX_ISOC_FRAMES   10
 206
 207 #define BTUSB_INTR_RUNNING      0
 208 #define BTUSB_BULK_RUNNING      1
 209 #define BTUSB_ISOC_RUNNING      2
 210 #define BTUSB_SUSPENDING        3
 211 #define BTUSB_DID_ISO_RESUME    4
 212
 213 struct btusb_data {
 214         struct hci_dev       *hdev;
 215         struct usb_device    *udev;
 216         struct usb_interface *intf;
 217         struct usb_interface *isoc;
 218
 219         spinlock_t lock;
 220
 221         unsigned long flags;
 222
 223         struct work_struct work;
 224         struct work_struct waker;
 225
 226         struct usb_anchor tx_anchor;
 227         struct usb_anchor intr_anchor;
 228         struct usb_anchor bulk_anchor;
 229         struct usb_anchor isoc_anchor;
 230         struct usb_anchor deferred;
 231         int tx_in_flight;
 232         spinlock_t txlock;
 233
 234         struct usb_endpoint_descriptor *intr_ep;
 235         struct usb_endpoint_descriptor *bulk_tx_ep;
 236         struct usb_endpoint_descriptor *bulk_rx_ep;
 237         struct usb_endpoint_descriptor *isoc_tx_ep;
 238         struct usb_endpoint_descriptor *isoc_rx_ep;
 239
 240         __u8 cmdreq_type;
 241
 242         unsigned int sco_num;
 243         int isoc_altsetting;
 244         int suspend_count;
 245 };
 246
 247 static int inc_tx(struct btusb_data *data)
 248 {
 249         unsigned long flags;
 250         int rv;
 251
 252         spin_lock_irqsave(&data->txlock, flags);
 253         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 254         if (!rv)
 255                 data->tx_in_flight++;
 256         spin_unlock_irqrestore(&data->txlock, flags);
 257
 258         return rv;
 259 }
 260
 261 static void btusb_intr_complete(struct urb *urb)
 262 {
 263         struct hci_dev *hdev = urb->context;
 264         struct btusb_data *data = hdev->driver_data;
 265         int err;
 266
 267         BT_DBG("%s urb %p status %d count %d", hdev->name,
 268                                         urb, urb->status, urb->actual_length);
 269
 270         if (!test_bit(HCI_RUNNING, &hdev->flags))
 271                 return;
 272
 273         if (urb->status == 0) {
 274                 hdev->stat.byte_rx += urb->actual_length;
 275
 276                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 277                                                 urb->transfer_buffer,
 278                                                 urb->actual_length) < 0) {
 279                         BT_ERR("%s corrupted event packet", hdev->name);
 280                         hdev->stat.err_rx++;
 281                 }
 282         }
 283
 284         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 285                 return;
 286
 287         usb_mark_last_busy(data->udev);
 288         usb_anchor_urb(urb, &data->intr_anchor);
 289
 290         err = usb_submit_urb(urb, GFP_ATOMIC);
 291         if (err < 0) {
 292                 /* -EPERM: urb is being killed;
 293                  * -ENODEV: device got disconnected */
 294                 if (err != -EPERM && err != -ENODEV)
 295                         BT_ERR("%s urb %p failed to resubmit (%d)",
 296                                                 hdev->name, urb, -err);
 297                 usb_unanchor_urb(urb);
 298         }
 299 }
 300
 301 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 302 {
 303         struct btusb_data *data = hdev->driver_data;
 304         struct urb *urb;
 305         unsigned char *buf;
 306         unsigned int pipe;
 307         int err, size;
 308
 309         BT_DBG("%s", hdev->name);
 310
 311         if (!data->intr_ep)
 312                 return -ENODEV;
 313
 314         urb = usb_alloc_urb(0, mem_flags);
 315         if (!urb)
 316                 return -ENOMEM;
 317
 318         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 319
 320         buf = kmalloc(size, mem_flags);
 321         if (!buf) {
 322                 usb_free_urb(urb);
 323                 return -ENOMEM;
 324         }
 325
 326         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 327
 328         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 329                                                 btusb_intr_complete, hdev,
 330                                                 data->intr_ep->bInterval);
 331
 332         urb->transfer_flags |= URB_FREE_BUFFER;
 333
 334         usb_anchor_urb(urb, &data->intr_anchor);
 335
 336         err = usb_submit_urb(urb, mem_flags);
 337         if (err < 0) {
 338                 BT_ERR("%s urb %p submission failed (%d)",
 339                                                 hdev->name, urb, -err);
 340                 usb_unanchor_urb(urb);
 341         }
 342
 343         usb_free_urb(urb);
 344
 345         return err;
 346 }
 347
 348 static void btusb_bulk_complete(struct urb *urb)
 349 {
 350         struct hci_dev *hdev = urb->context;
 351         struct btusb_data *data = hdev->driver_data;
 352         int err;
 353
 354         BT_DBG("%s urb %p status %d count %d", hdev->name,
 355                                         urb, urb->status, urb->actual_length);
 356
 357         if (!test_bit(HCI_RUNNING, &hdev->flags))
 358                 return;
 359
 360         if (urb->status == 0) {
 361                 hdev->stat.byte_rx += urb->actual_length;
 362
 363                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 364                                                 urb->transfer_buffer,
 365                                                 urb->actual_length) < 0) {
 366                         BT_ERR("%s corrupted ACL packet", hdev->name);
 367                         hdev->stat.err_rx++;
 368                 }
 369         }
 370
 371         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 372                 return;
 373
 374         usb_anchor_urb(urb, &data->bulk_anchor);
 375         usb_mark_last_busy(data->udev);
 376
 377         err = usb_submit_urb(urb, GFP_ATOMIC);
 378         if (err < 0) {
 379                 /* -EPERM: urb is being killed;
 380                  * -ENODEV: device got disconnected */
 381                 if (err != -EPERM && err != -ENODEV)
 382                         BT_ERR("%s urb %p failed to resubmit (%d)",
 383                                                 hdev->name, urb, -err);
 384                 usb_unanchor_urb(urb);
 385         }
 386 }
 387
 388 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 389 {
 390         struct btusb_data *data = hdev->driver_data;
 391         struct urb *urb;
 392         unsigned char *buf;
 393         unsigned int pipe;
 394         int err, size = HCI_MAX_FRAME_SIZE;
 395
 396         BT_DBG("%s", hdev->name);
 397
 398         if (!data->bulk_rx_ep)
 399                 return -ENODEV;
 400
 401         urb = usb_alloc_urb(0, mem_flags);
 402         if (!urb)
 403                 return -ENOMEM;
 404
 405         buf = kmalloc(size, mem_flags);
 406         if (!buf) {
 407                 usb_free_urb(urb);
 408                 return -ENOMEM;
 409         }
 410
 411         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 412
 413         usb_fill_bulk_urb(urb, data->udev, pipe,
 414                                         buf, size, btusb_bulk_complete, hdev);
 415
 416         urb->transfer_flags |= URB_FREE_BUFFER;
 417
 418         usb_mark_last_busy(data->udev);
 419         usb_anchor_urb(urb, &data->bulk_anchor);
 420
 421         err = usb_submit_urb(urb, mem_flags);
 422         if (err < 0) {
 423                 BT_ERR("%s urb %p submission failed (%d)",
 424                                                 hdev->name, urb, -err);
 425                 usb_unanchor_urb(urb);
 426         }
 427
 428         usb_free_urb(urb);
 429
 430         return err;
 431 }
 432
 433 static void btusb_isoc_complete(struct urb *urb)
 434 {
 435         struct hci_dev *hdev = urb->context;
 436         struct btusb_data *data = hdev->driver_data;
 437         int i, err;
 438
 439         BT_DBG("%s urb %p status %d count %d", hdev->name,
 440                                         urb, urb->status, urb->actual_length);
 441
 442         if (!test_bit(HCI_RUNNING, &hdev->flags))
 443                 return;
 444
 445         if (urb->status == 0) {
 446                 for (i = 0; i < urb->number_of_packets; i++) {
 447                         unsigned int offset = urb->iso_frame_desc[i].offset;
 448                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 449
 450                         if (urb->iso_frame_desc[i].status)
 451                                 continue;
 452
 453                         hdev->stat.byte_rx += length;
 454
 455                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 456                                                 urb->transfer_buffer + offset,
 457                                                                 length) < 0) {
 458                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 459                                 hdev->stat.err_rx++;
 460                         }
 461                 }
 462         }
 463
 464         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 465                 return;
 466
 467         usb_anchor_urb(urb, &data->isoc_anchor);
 468
 469         err = usb_submit_urb(urb, GFP_ATOMIC);
 470         if (err < 0) {
 471                 /* -EPERM: urb is being killed;
 472                  * -ENODEV: device got disconnected */
 473                 if (err != -EPERM && err != -ENODEV)
 474                         BT_ERR("%s urb %p failed to resubmit (%d)",
 475                                                 hdev->name, urb, -err);
 476                 usb_unanchor_urb(urb);
 477         }
 478 }
 479
 480 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 481 {
 482         int i, offset = 0;
 483
 484         BT_DBG("len %d mtu %d", len, mtu);
 485
 486         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 487                                         i++, offset += mtu, len -= mtu) {
 488                 urb->iso_frame_desc[i].offset = offset;
 489                 urb->iso_frame_desc[i].length = mtu;
 490         }
 491
 492         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 493                 urb->iso_frame_desc[i].offset = offset;
 494                 urb->iso_frame_desc[i].length = len;
 495                 i++;
 496         }
 497
 498         urb->number_of_packets = i;
 499 }
 500
 501 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 502 {
 503         struct btusb_data *data = hdev->driver_data;
 504         struct urb *urb;
 505         unsigned char *buf;
 506         unsigned int pipe;
 507         int err, size;
 508
 509         BT_DBG("%s", hdev->name);
 510
 511         if (!data->isoc_rx_ep)
 512                 return -ENODEV;
 513
 514         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 515         if (!urb)
 516                 return -ENOMEM;
 517
 518         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 519                                                 BTUSB_MAX_ISOC_FRAMES;
 520
 521         buf = kmalloc(size, mem_flags);
 522         if (!buf) {
 523                 usb_free_urb(urb);
 524                 return -ENOMEM;
 525         }
 526
 527         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 528
 529         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 530                                 hdev, data->isoc_rx_ep->bInterval);
 531
 532         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 533
 534         __fill_isoc_descriptor(urb, size,
 535                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 536
 537         usb_anchor_urb(urb, &data->isoc_anchor);
 538
 539         err = usb_submit_urb(urb, mem_flags);
 540         if (err < 0) {
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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 = hdev->driver_data;
 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                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 789                 kfree(urb->setup_packet);
 790                 usb_unanchor_urb(urb);
 791         } else {
 792                 usb_mark_last_busy(data->udev);
 793         }
 794
 795 done:
 796         usb_free_urb(urb);
 797         return err;
 798 }
 799
 800 static void btusb_destruct(struct hci_dev *hdev)
 801 {
 802         struct btusb_data *data = hdev->driver_data;
 803
 804         BT_DBG("%s", hdev->name);
 805
 806         kfree(data);
 807 }
 808
 809 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 810 {
 811         struct btusb_data *data = hdev->driver_data;
 812
 813         BT_DBG("%s evt %d", hdev->name, evt);
 814
 815         if (hdev->conn_hash.sco_num != data->sco_num) {
 816                 data->sco_num = hdev->conn_hash.sco_num;
 817                 schedule_work(&data->work);
 818         }
 819 }
 820
 821 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 822 {
 823         struct btusb_data *data = hdev->driver_data;
 824         struct usb_interface *intf = data->isoc;
 825         struct usb_endpoint_descriptor *ep_desc;
 826         int i, err;
 827
 828         if (!data->isoc)
 829                 return -ENODEV;
 830
 831         err = usb_set_interface(data->udev, 1, altsetting);
 832         if (err < 0) {
 833                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 834                 return err;
 835         }
 836
 837         data->isoc_altsetting = altsetting;
 838
 839         data->isoc_tx_ep = NULL;
 840         data->isoc_rx_ep = NULL;
 841
 842         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 843                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 844
 845                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 846                         data->isoc_tx_ep = ep_desc;
 847                         continue;
 848                 }
 849
 850                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 851                         data->isoc_rx_ep = ep_desc;
 852                         continue;
 853                 }
 854         }
 855
 856         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 857                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 858                 return -ENODEV;
 859         }
 860
 861         return 0;
 862 }
 863
 864 static void btusb_work(struct work_struct *work)
 865 {
 866         struct btusb_data *data = container_of(work, struct btusb_data, work);
 867         struct hci_dev *hdev = data->hdev;
 868         int err;
 869
 870         if (hdev->conn_hash.sco_num > 0) {
 871                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 872                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 873                         if (err < 0) {
 874                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 875                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 876                                 return;
 877                         }
 878
 879                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 880                 }
 881                 if (data->isoc_altsetting != 2) {
 882                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 883                         usb_kill_anchored_urbs(&data->isoc_anchor);
 884
 885                         if (__set_isoc_interface(hdev, 2) < 0)
 886                                 return;
 887                 }
 888
 889                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 890                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 891                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 892                         else
 893                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 894                 }
 895         } else {
 896                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 897                 usb_kill_anchored_urbs(&data->isoc_anchor);
 898
 899                 __set_isoc_interface(hdev, 0);
 900                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 901                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 902         }
 903 }
 904
 905 static void btusb_waker(struct work_struct *work)
 906 {
 907         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 908         int err;
 909
 910         err = usb_autopm_get_interface(data->intf);
 911         if (err < 0)
 912                 return;
 913
 914         usb_autopm_put_interface(data->intf);
 915 }
 916
 917 static int btusb_probe(struct usb_interface *intf,
 918                                 const struct usb_device_id *id)
 919 {
 920         struct usb_endpoint_descriptor *ep_desc;
 921         struct btusb_data *data;
 922         struct hci_dev *hdev;
 923         int i, err;
 924
 925         BT_DBG("intf %p id %p", intf, id);
 926
 927         /* interface numbers are hardcoded in the spec */
 928         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 929                 return -ENODEV;
 930
 931         if (!id->driver_info) {
 932                 const struct usb_device_id *match;
 933                 match = usb_match_id(intf, blacklist_table);
 934                 if (match)
 935                         id = match;
 936         }
 937
 938         if (id->driver_info == BTUSB_IGNORE)
 939                 return -ENODEV;
 940
 941         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 942                 return -ENODEV;
 943
 944         if (ignore_csr && id->driver_info & BTUSB_CSR)
 945                 return -ENODEV;
 946
 947         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 948                 return -ENODEV;
 949
 950         if (id->driver_info & BTUSB_ATH3012) {
 951                 struct usb_device *udev = interface_to_usbdev(intf);
 952
 953                 /* Old firmware would otherwise let ath3k driver load
 954                  * patch and sysconfig files */
 955                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 956                         return -ENODEV;
 957         }
 958
 959         data = kzalloc(sizeof(*data), GFP_KERNEL);
 960         if (!data)
 961                 return -ENOMEM;
 962
 963         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 964                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 965
 966                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 967                         data->intr_ep = ep_desc;
 968                         continue;
 969                 }
 970
 971                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 972                         data->bulk_tx_ep = ep_desc;
 973                         continue;
 974                 }
 975
 976                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 977                         data->bulk_rx_ep = ep_desc;
 978                         continue;
 979                 }
 980         }
 981
 982         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 983                 kfree(data);
 984                 return -ENODEV;
 985         }
 986
 987         data->cmdreq_type = USB_TYPE_CLASS;
 988
 989         data->udev = interface_to_usbdev(intf);
 990         data->intf = intf;
 991
 992         spin_lock_init(&data->lock);
 993
 994         INIT_WORK(&data->work, btusb_work);
 995         INIT_WORK(&data->waker, btusb_waker);
 996         spin_lock_init(&data->txlock);
 997
 998         init_usb_anchor(&data->tx_anchor);
 999         init_usb_anchor(&data->intr_anchor);
1000         init_usb_anchor(&data->bulk_anchor);
1001         init_usb_anchor(&data->isoc_anchor);
1002         init_usb_anchor(&data->deferred);
1003
1004         hdev = hci_alloc_dev();
1005         if (!hdev) {
1006                 kfree(data);
1007                 return -ENOMEM;
1008         }
1009
1010         hdev->bus = HCI_USB;
1011         hdev->driver_data = data;
1012
1013         data->hdev = hdev;
1014
1015         SET_HCIDEV_DEV(hdev, &intf->dev);
1016
1017         hdev->open     = btusb_open;
1018         hdev->close    = btusb_close;
1019         hdev->flush    = btusb_flush;
1020         hdev->send     = btusb_send_frame;
1021         hdev->destruct = btusb_destruct;
1022         hdev->notify   = btusb_notify;
1023
1024         hdev->owner = THIS_MODULE;
1025
1026         /* Interface numbers are hardcoded in the specification */
1027         data->isoc = usb_ifnum_to_if(data->udev, 1);
1028
1029         if (!reset)
1030                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1031
1032         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1033                 if (!disable_scofix)
1034                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1035         }
1036
1037         if (id->driver_info & BTUSB_BROKEN_ISOC)
1038                 data->isoc = NULL;
1039
1040         if (id->driver_info & BTUSB_DIGIANSWER) {
1041                 data->cmdreq_type = USB_TYPE_VENDOR;
1042                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1043         }
1044
1045         if (id->driver_info & BTUSB_CSR) {
1046                 struct usb_device *udev = data->udev;
1047
1048                 /* Old firmware would otherwise execute USB reset */
1049                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1050                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1051         }
1052
1053         if (id->driver_info & BTUSB_SNIFFER) {
1054                 struct usb_device *udev = data->udev;
1055
1056                 /* New sniffer firmware has crippled HCI interface */
1057                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1058                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1059
1060                 data->isoc = NULL;
1061         }
1062
1063         if (id->driver_info & BTUSB_BCM92035) {
1064                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1065                 struct sk_buff *skb;
1066
1067                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1068                 if (skb) {
1069                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1070                         skb_queue_tail(&hdev->driver_init, skb);
1071                 }
1072         }
1073
1074         if (data->isoc) {
1075                 err = usb_driver_claim_interface(&btusb_driver,
1076                                                         data->isoc, data);
1077                 if (err < 0) {
1078                         hci_free_dev(hdev);
1079                         kfree(data);
1080                         return err;
1081                 }
1082         }
1083
1084         err = hci_register_dev(hdev);
1085         if (err < 0) {
1086                 hci_free_dev(hdev);
1087                 kfree(data);
1088                 return err;
1089         }
1090
1091         usb_set_intfdata(intf, data);
1092
1093         return 0;
1094 }
1095
1096 static void btusb_disconnect(struct usb_interface *intf)
1097 {
1098         struct btusb_data *data = usb_get_intfdata(intf);
1099         struct hci_dev *hdev;
1100
1101         BT_DBG("intf %p", intf);
1102
1103         if (!data)
1104                 return;
1105
1106         hdev = data->hdev;
1107
1108         __hci_dev_hold(hdev);
1109
1110         usb_set_intfdata(data->intf, NULL);
1111
1112         if (data->isoc)
1113                 usb_set_intfdata(data->isoc, NULL);
1114
1115         hci_unregister_dev(hdev);
1116
1117         if (intf == data->isoc)
1118                 usb_driver_release_interface(&btusb_driver, data->intf);
1119         else if (data->isoc)
1120                 usb_driver_release_interface(&btusb_driver, data->isoc);
1121
1122         __hci_dev_put(hdev);
1123
1124         hci_free_dev(hdev);
1125 }
1126
1127 #ifdef CONFIG_PM
1128 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1129 {
1130         struct btusb_data *data = usb_get_intfdata(intf);
1131
1132         BT_DBG("intf %p", intf);
1133
1134         if (data->suspend_count++)
1135                 return 0;
1136
1137         spin_lock_irq(&data->txlock);
1138         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1139                 set_bit(BTUSB_SUSPENDING, &data->flags);
1140                 spin_unlock_irq(&data->txlock);
1141         } else {
1142                 spin_unlock_irq(&data->txlock);
1143                 data->suspend_count--;
1144                 return -EBUSY;
1145         }
1146
1147         cancel_work_sync(&data->work);
1148
1149         btusb_stop_traffic(data);
1150         usb_kill_anchored_urbs(&data->tx_anchor);
1151
1152         return 0;
1153 }
1154
1155 static void play_deferred(struct btusb_data *data)
1156 {
1157         struct urb *urb;
1158         int err;
1159
1160         while ((urb = usb_get_from_anchor(&data->deferred))) {
1161                 err = usb_submit_urb(urb, GFP_ATOMIC);
1162                 if (err < 0)
1163                         break;
1164
1165                 data->tx_in_flight++;
1166         }
1167         usb_scuttle_anchored_urbs(&data->deferred);
1168 }
1169
1170 static int btusb_resume(struct usb_interface *intf)
1171 {
1172         struct btusb_data *data = usb_get_intfdata(intf);
1173         struct hci_dev *hdev = data->hdev;
1174         int err = 0;
1175
1176         BT_DBG("intf %p", intf);
1177
1178         if (--data->suspend_count)
1179                 return 0;
1180
1181         if (!test_bit(HCI_RUNNING, &hdev->flags))
1182                 goto done;
1183
1184         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1185                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1186                 if (err < 0) {
1187                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1188                         goto failed;
1189                 }
1190         }
1191
1192         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1193                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1194                 if (err < 0) {
1195                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1196                         goto failed;
1197                 }
1198
1199                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1200         }
1201
1202         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1203                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1204                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1205                 else
1206                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1207         }
1208
1209         spin_lock_irq(&data->txlock);
1210         play_deferred(data);
1211         clear_bit(BTUSB_SUSPENDING, &data->flags);
1212         spin_unlock_irq(&data->txlock);
1213         schedule_work(&data->work);
1214
1215         return 0;
1216
1217 failed:
1218         usb_scuttle_anchored_urbs(&data->deferred);
1219 done:
1220         spin_lock_irq(&data->txlock);
1221         clear_bit(BTUSB_SUSPENDING, &data->flags);
1222         spin_unlock_irq(&data->txlock);
1223
1224         return err;
1225 }
1226 #endif
1227
1228 static struct usb_driver btusb_driver = {
1229         .name           = "btusb",
1230         .probe          = btusb_probe,
1231         .disconnect     = btusb_disconnect,
1232 #ifdef CONFIG_PM
1233         .suspend        = btusb_suspend,
1234         .resume         = btusb_resume,
1235 #endif
1236         .id_table       = btusb_table,
1237         .supports_autosuspend = 1,
1238 };
1239
1240 static int __init btusb_init(void)
1241 {
1242         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1243
1244         return usb_register(&btusb_driver);
1245 }
1246
1247 static void __exit btusb_exit(void)
1248 {
1249         usb_deregister(&btusb_driver);
1250 }
1251
1252 module_init(btusb_init);
1253 module_exit(btusb_exit);
1254
1255 module_param(ignore_dga, bool, 0644);
1256 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1257
1258 module_param(ignore_csr, bool, 0644);
1259 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1260
1261 module_param(ignore_sniffer, bool, 0644);
1262 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1263
1264 module_param(disable_scofix, bool, 0644);
1265 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1266
1267 module_param(force_scofix, bool, 0644);
1268 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1269
1270 module_param(reset, bool, 0644);
1271 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1272
1273 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1274 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1275 MODULE_VERSION(VERSION);
1276 MODULE_LICENSE("GPL");