drivers/bluetooth/btusb.c

   1 /*
   2  *
   3  *  Generic Bluetooth USB driver
   4  *
   5  *  Copyright (C) 2005-2008  Marcel Holtmann <marcel@holtmann.org>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/module.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/types.h>
  29 #include <linux/sched.h>
  30 #include <linux/errno.h>
  31 #include <linux/skbuff.h>
  32
  33 #include <linux/usb.h>
  34
  35 #include <net/bluetooth/bluetooth.h>
  36 #include <net/bluetooth/hci_core.h>
  37
  38 #define VERSION "0.6"
  39
  40 static int ignore_dga;
  41 static int ignore_csr;
  42 static int ignore_sniffer;
  43 static int disable_scofix;
  44 static int force_scofix;
  45
  46 static int reset = 1;
  47
  48 static struct usb_driver btusb_driver;
  49
  50 #define BTUSB_IGNORE            0x01
  51 #define BTUSB_DIGIANSWER        0x02
  52 #define BTUSB_CSR               0x04
  53 #define BTUSB_SNIFFER           0x08
  54 #define BTUSB_BCM92035          0x10
  55 #define BTUSB_BROKEN_ISOC       0x20
  56 #define BTUSB_WRONG_SCO_MTU     0x40
  57 #define BTUSB_ATH3012           0x80
  58
  59 static struct usb_device_id btusb_table[] = {
  60         /* Generic Bluetooth USB device */
  61         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  62
  63         /* Apple-specific (Broadcom) devices */
  64         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
  65
  66         /* Broadcom SoftSailing reporting vendor specific */
  67         { USB_DEVICE(0x0a5c, 0x21e1) },
  68
  69         /* Apple MacBookPro 7,1 */
  70         { USB_DEVICE(0x05ac, 0x8213) },
  71
  72         /* Apple iMac11,1 */
  73         { USB_DEVICE(0x05ac, 0x8215) },
  74
  75         /* Apple MacBookPro6,2 */
  76         { USB_DEVICE(0x05ac, 0x8218) },
  77
  78         /* Apple MacBookAir3,1, MacBookAir3,2 */
  79         { USB_DEVICE(0x05ac, 0x821b) },
  80
  81         /* Apple MacBookAir4,1 */
  82         { USB_DEVICE(0x05ac, 0x821f) },
  83
  84         /* Apple MacBookPro8,2 */
  85         { USB_DEVICE(0x05ac, 0x821a) },
  86
  87         /* Apple MacMini5,1 */
  88         { USB_DEVICE(0x05ac, 0x8281) },
  89
  90         /* AVM BlueFRITZ! USB v2.0 */
  91         { USB_DEVICE(0x057c, 0x3800) },
  92
  93         /* Bluetooth Ultraport Module from IBM */
  94         { USB_DEVICE(0x04bf, 0x030a) },
  95
  96         /* ALPS Modules with non-standard id */
  97         { USB_DEVICE(0x044e, 0x3001) },
  98         { USB_DEVICE(0x044e, 0x3002) },
  99
 100         /* Ericsson with non-standard id */
 101         { USB_DEVICE(0x0bdb, 0x1002) },
 102
 103         /* Canyon CN-BTU1 with HID interfaces */
 104         { USB_DEVICE(0x0c10, 0x0000) },
 105
 106         /* Broadcom BCM20702A0 */
 107         { USB_DEVICE(0x0b05, 0x17b5) },
 108         { USB_DEVICE(0x04ca, 0x2003) },
 109         { USB_DEVICE(0x0489, 0xe042) },
 110         { USB_DEVICE(0x413c, 0x8197) },
 111
 112         /* Foxconn - Hon Hai */
 113         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 114
 115         /*Broadcom devices with vendor specific id */
 116         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 117
 118         { }     /* Terminating entry */
 119 };
 120
 121 MODULE_DEVICE_TABLE(usb, btusb_table);
 122
 123 static struct usb_device_id blacklist_table[] = {
 124         /* CSR BlueCore devices */
 125         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 126
 127         /* Broadcom BCM2033 without firmware */
 128         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 129
 130         /* Atheros 3011 with sflash firmware */
 131         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 132         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 133         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 134         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 135         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 136         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 137
 138         /* Atheros AR9285 Malbec with sflash firmware */
 139         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 140
 141         /* Atheros 3012 with sflash firmware */
 142         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 160
 161         /* Atheros AR5BBU12 with sflash firmware */
 162         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 163
 164         /* Atheros AR5BBU12 with sflash firmware */
 165         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 167
 168         /* Broadcom BCM2035 */
 169         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 170         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 171         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 172
 173         /* Broadcom BCM2045 */
 174         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 175         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 176
 177         /* IBM/Lenovo ThinkPad with Broadcom chip */
 178         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 179         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 180
 181         /* HP laptop with Broadcom chip */
 182         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 183
 184         /* Dell laptop with Broadcom chip */
 185         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 186
 187         /* Dell Wireless 370 and 410 devices */
 188         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 189         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 190
 191         /* Belkin F8T012 and F8T013 devices */
 192         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 193         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 194
 195         /* Asus WL-BTD202 device */
 196         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 197
 198         /* Kensington Bluetooth USB adapter */
 199         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 200
 201         /* RTX Telecom based adapters with buggy SCO support */
 202         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 203         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 204
 205         /* CONWISE Technology based adapters with buggy SCO support */
 206         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 207
 208         /* Digianswer devices */
 209         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 210         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 211
 212         /* CSR BlueCore Bluetooth Sniffer */
 213         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 214
 215         /* Frontline ComProbe Bluetooth Sniffer */
 216         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 217
 218         { }     /* Terminating entry */
 219 };
 220
 221 #define BTUSB_MAX_ISOC_FRAMES   10
 222
 223 #define BTUSB_INTR_RUNNING      0
 224 #define BTUSB_BULK_RUNNING      1
 225 #define BTUSB_ISOC_RUNNING      2
 226 #define BTUSB_SUSPENDING        3
 227 #define BTUSB_DID_ISO_RESUME    4
 228
 229 struct btusb_data {
 230         struct hci_dev       *hdev;
 231         struct usb_device    *udev;
 232         struct usb_interface *intf;
 233         struct usb_interface *isoc;
 234
 235         spinlock_t lock;
 236
 237         unsigned long flags;
 238
 239         struct work_struct work;
 240         struct work_struct waker;
 241
 242         struct usb_anchor tx_anchor;
 243         struct usb_anchor intr_anchor;
 244         struct usb_anchor bulk_anchor;
 245         struct usb_anchor isoc_anchor;
 246         struct usb_anchor deferred;
 247         int tx_in_flight;
 248         spinlock_t txlock;
 249
 250         struct usb_endpoint_descriptor *intr_ep;
 251         struct usb_endpoint_descriptor *bulk_tx_ep;
 252         struct usb_endpoint_descriptor *bulk_rx_ep;
 253         struct usb_endpoint_descriptor *isoc_tx_ep;
 254         struct usb_endpoint_descriptor *isoc_rx_ep;
 255
 256         __u8 cmdreq_type;
 257
 258         unsigned int sco_num;
 259         int isoc_altsetting;
 260         int suspend_count;
 261 };
 262
 263 static int inc_tx(struct btusb_data *data)
 264 {
 265         unsigned long flags;
 266         int rv;
 267
 268         spin_lock_irqsave(&data->txlock, flags);
 269         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 270         if (!rv)
 271                 data->tx_in_flight++;
 272         spin_unlock_irqrestore(&data->txlock, flags);
 273
 274         return rv;
 275 }
 276
 277 static void btusb_intr_complete(struct urb *urb)
 278 {
 279         struct hci_dev *hdev = urb->context;
 280         struct btusb_data *data = hdev->driver_data;
 281         int err;
 282
 283         BT_DBG("%s urb %p status %d count %d", hdev->name,
 284                                         urb, urb->status, urb->actual_length);
 285
 286         if (!test_bit(HCI_RUNNING, &hdev->flags))
 287                 return;
 288
 289         if (urb->status == 0) {
 290                 hdev->stat.byte_rx += urb->actual_length;
 291
 292                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 293                                                 urb->transfer_buffer,
 294                                                 urb->actual_length) < 0) {
 295                         BT_ERR("%s corrupted event packet", hdev->name);
 296                         hdev->stat.err_rx++;
 297                 }
 298         }
 299
 300         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 301                 return;
 302
 303         usb_mark_last_busy(data->udev);
 304         usb_anchor_urb(urb, &data->intr_anchor);
 305
 306         err = usb_submit_urb(urb, GFP_ATOMIC);
 307         if (err < 0) {
 308                 /* -EPERM: urb is being killed;
 309                  * -ENODEV: device got disconnected */
 310                 if (err != -EPERM && err != -ENODEV)
 311                         BT_ERR("%s urb %p failed to resubmit (%d)",
 312                                                 hdev->name, urb, -err);
 313                 usb_unanchor_urb(urb);
 314         }
 315 }
 316
 317 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 318 {
 319         struct btusb_data *data = hdev->driver_data;
 320         struct urb *urb;
 321         unsigned char *buf;
 322         unsigned int pipe;
 323         int err, size;
 324
 325         BT_DBG("%s", hdev->name);
 326
 327         if (!data->intr_ep)
 328                 return -ENODEV;
 329
 330         urb = usb_alloc_urb(0, mem_flags);
 331         if (!urb)
 332                 return -ENOMEM;
 333
 334         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 335
 336         buf = kmalloc(size, mem_flags);
 337         if (!buf) {
 338                 usb_free_urb(urb);
 339                 return -ENOMEM;
 340         }
 341
 342         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 343
 344         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 345                                                 btusb_intr_complete, hdev,
 346                                                 data->intr_ep->bInterval);
 347
 348         urb->transfer_flags |= URB_FREE_BUFFER;
 349
 350         usb_anchor_urb(urb, &data->intr_anchor);
 351
 352         err = usb_submit_urb(urb, mem_flags);
 353         if (err < 0) {
 354                 BT_ERR("%s urb %p submission failed (%d)",
 355                                                 hdev->name, urb, -err);
 356                 usb_unanchor_urb(urb);
 357         }
 358
 359         usb_free_urb(urb);
 360
 361         return err;
 362 }
 363
 364 static void btusb_bulk_complete(struct urb *urb)
 365 {
 366         struct hci_dev *hdev = urb->context;
 367         struct btusb_data *data = hdev->driver_data;
 368         int err;
 369
 370         BT_DBG("%s urb %p status %d count %d", hdev->name,
 371                                         urb, urb->status, urb->actual_length);
 372
 373         if (!test_bit(HCI_RUNNING, &hdev->flags))
 374                 return;
 375
 376         if (urb->status == 0) {
 377                 hdev->stat.byte_rx += urb->actual_length;
 378
 379                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 380                                                 urb->transfer_buffer,
 381                                                 urb->actual_length) < 0) {
 382                         BT_ERR("%s corrupted ACL packet", hdev->name);
 383                         hdev->stat.err_rx++;
 384                 }
 385         }
 386
 387         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 388                 return;
 389
 390         usb_anchor_urb(urb, &data->bulk_anchor);
 391         usb_mark_last_busy(data->udev);
 392
 393         err = usb_submit_urb(urb, GFP_ATOMIC);
 394         if (err < 0) {
 395                 /* -EPERM: urb is being killed;
 396                  * -ENODEV: device got disconnected */
 397                 if (err != -EPERM && err != -ENODEV)
 398                         BT_ERR("%s urb %p failed to resubmit (%d)",
 399                                                 hdev->name, urb, -err);
 400                 usb_unanchor_urb(urb);
 401         }
 402 }
 403
 404 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 405 {
 406         struct btusb_data *data = hdev->driver_data;
 407         struct urb *urb;
 408         unsigned char *buf;
 409         unsigned int pipe;
 410         int err, size = HCI_MAX_FRAME_SIZE;
 411
 412         BT_DBG("%s", hdev->name);
 413
 414         if (!data->bulk_rx_ep)
 415                 return -ENODEV;
 416
 417         urb = usb_alloc_urb(0, mem_flags);
 418         if (!urb)
 419                 return -ENOMEM;
 420
 421         buf = kmalloc(size, mem_flags);
 422         if (!buf) {
 423                 usb_free_urb(urb);
 424                 return -ENOMEM;
 425         }
 426
 427         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 428
 429         usb_fill_bulk_urb(urb, data->udev, pipe,
 430                                         buf, size, btusb_bulk_complete, hdev);
 431
 432         urb->transfer_flags |= URB_FREE_BUFFER;
 433
 434         usb_mark_last_busy(data->udev);
 435         usb_anchor_urb(urb, &data->bulk_anchor);
 436
 437         err = usb_submit_urb(urb, mem_flags);
 438         if (err < 0) {
 439                 BT_ERR("%s urb %p submission failed (%d)",
 440                                                 hdev->name, urb, -err);
 441                 usb_unanchor_urb(urb);
 442         }
 443
 444         usb_free_urb(urb);
 445
 446         return err;
 447 }
 448
 449 static void btusb_isoc_complete(struct urb *urb)
 450 {
 451         struct hci_dev *hdev = urb->context;
 452         struct btusb_data *data = hdev->driver_data;
 453         int i, err;
 454
 455         BT_DBG("%s urb %p status %d count %d", hdev->name,
 456                                         urb, urb->status, urb->actual_length);
 457
 458         if (!test_bit(HCI_RUNNING, &hdev->flags))
 459                 return;
 460
 461         if (urb->status == 0) {
 462                 for (i = 0; i < urb->number_of_packets; i++) {
 463                         unsigned int offset = urb->iso_frame_desc[i].offset;
 464                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 465
 466                         if (urb->iso_frame_desc[i].status)
 467                                 continue;
 468
 469                         hdev->stat.byte_rx += length;
 470
 471                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 472                                                 urb->transfer_buffer + offset,
 473                                                                 length) < 0) {
 474                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 475                                 hdev->stat.err_rx++;
 476                         }
 477                 }
 478         }
 479
 480         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 481                 return;
 482
 483         usb_anchor_urb(urb, &data->isoc_anchor);
 484
 485         err = usb_submit_urb(urb, GFP_ATOMIC);
 486         if (err < 0) {
 487                 /* -EPERM: urb is being killed;
 488                  * -ENODEV: device got disconnected */
 489                 if (err != -EPERM && err != -ENODEV)
 490                         BT_ERR("%s urb %p failed to resubmit (%d)",
 491                                                 hdev->name, urb, -err);
 492                 usb_unanchor_urb(urb);
 493         }
 494 }
 495
 496 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 497 {
 498         int i, offset = 0;
 499
 500         BT_DBG("len %d mtu %d", len, mtu);
 501
 502         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 503                                         i++, offset += mtu, len -= mtu) {
 504                 urb->iso_frame_desc[i].offset = offset;
 505                 urb->iso_frame_desc[i].length = mtu;
 506         }
 507
 508         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 509                 urb->iso_frame_desc[i].offset = offset;
 510                 urb->iso_frame_desc[i].length = len;
 511                 i++;
 512         }
 513
 514         urb->number_of_packets = i;
 515 }
 516
 517 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 518 {
 519         struct btusb_data *data = hdev->driver_data;
 520         struct urb *urb;
 521         unsigned char *buf;
 522         unsigned int pipe;
 523         int err, size;
 524
 525         BT_DBG("%s", hdev->name);
 526
 527         if (!data->isoc_rx_ep)
 528                 return -ENODEV;
 529
 530         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 531         if (!urb)
 532                 return -ENOMEM;
 533
 534         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 535                                                 BTUSB_MAX_ISOC_FRAMES;
 536
 537         buf = kmalloc(size, mem_flags);
 538         if (!buf) {
 539                 usb_free_urb(urb);
 540                 return -ENOMEM;
 541         }
 542
 543         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 544
 545         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 546                                 hdev, data->isoc_rx_ep->bInterval);
 547
 548         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 549
 550         __fill_isoc_descriptor(urb, size,
 551                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 552
 553         usb_anchor_urb(urb, &data->isoc_anchor);
 554
 555         err = usb_submit_urb(urb, mem_flags);
 556         if (err < 0) {
 557                 BT_ERR("%s urb %p submission failed (%d)",
 558                                                 hdev->name, urb, -err);
 559                 usb_unanchor_urb(urb);
 560         }
 561
 562         usb_free_urb(urb);
 563
 564         return err;
 565 }
 566
 567 static void btusb_tx_complete(struct urb *urb)
 568 {
 569         struct sk_buff *skb = urb->context;
 570         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 571         struct btusb_data *data = hdev->driver_data;
 572
 573         BT_DBG("%s urb %p status %d count %d", hdev->name,
 574                                         urb, urb->status, urb->actual_length);
 575
 576         if (!test_bit(HCI_RUNNING, &hdev->flags))
 577                 goto done;
 578
 579         if (!urb->status)
 580                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 581         else
 582                 hdev->stat.err_tx++;
 583
 584 done:
 585         spin_lock(&data->txlock);
 586         data->tx_in_flight--;
 587         spin_unlock(&data->txlock);
 588
 589         kfree(urb->setup_packet);
 590
 591         kfree_skb(skb);
 592 }
 593
 594 static void btusb_isoc_tx_complete(struct urb *urb)
 595 {
 596         struct sk_buff *skb = urb->context;
 597         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 598
 599         BT_DBG("%s urb %p status %d count %d", hdev->name,
 600                                         urb, urb->status, urb->actual_length);
 601
 602         if (!test_bit(HCI_RUNNING, &hdev->flags))
 603                 goto done;
 604
 605         if (!urb->status)
 606                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 607         else
 608                 hdev->stat.err_tx++;
 609
 610 done:
 611         kfree(urb->setup_packet);
 612
 613         kfree_skb(skb);
 614 }
 615
 616 static int btusb_open(struct hci_dev *hdev)
 617 {
 618         struct btusb_data *data = hdev->driver_data;
 619         int err;
 620
 621         BT_DBG("%s", hdev->name);
 622
 623         err = usb_autopm_get_interface(data->intf);
 624         if (err < 0)
 625                 return err;
 626
 627         data->intf->needs_remote_wakeup = 1;
 628
 629         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 630                 goto done;
 631
 632         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 633                 goto done;
 634
 635         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 636         if (err < 0)
 637                 goto failed;
 638
 639         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 640         if (err < 0) {
 641                 usb_kill_anchored_urbs(&data->intr_anchor);
 642                 goto failed;
 643         }
 644
 645         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 646         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 647
 648 done:
 649         usb_autopm_put_interface(data->intf);
 650         return 0;
 651
 652 failed:
 653         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 654         clear_bit(HCI_RUNNING, &hdev->flags);
 655         usb_autopm_put_interface(data->intf);
 656         return err;
 657 }
 658
 659 static void btusb_stop_traffic(struct btusb_data *data)
 660 {
 661         usb_kill_anchored_urbs(&data->intr_anchor);
 662         usb_kill_anchored_urbs(&data->bulk_anchor);
 663         usb_kill_anchored_urbs(&data->isoc_anchor);
 664 }
 665
 666 static int btusb_close(struct hci_dev *hdev)
 667 {
 668         struct btusb_data *data = hdev->driver_data;
 669         int err;
 670
 671         BT_DBG("%s", hdev->name);
 672
 673         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 674                 return 0;
 675
 676         cancel_work_sync(&data->work);
 677         cancel_work_sync(&data->waker);
 678
 679         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 680         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 681         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 682
 683         btusb_stop_traffic(data);
 684         err = usb_autopm_get_interface(data->intf);
 685         if (err < 0)
 686                 goto failed;
 687
 688         data->intf->needs_remote_wakeup = 0;
 689         usb_autopm_put_interface(data->intf);
 690
 691 failed:
 692         usb_scuttle_anchored_urbs(&data->deferred);
 693         return 0;
 694 }
 695
 696 static int btusb_flush(struct hci_dev *hdev)
 697 {
 698         struct btusb_data *data = hdev->driver_data;
 699
 700         BT_DBG("%s", hdev->name);
 701
 702         usb_kill_anchored_urbs(&data->tx_anchor);
 703
 704         return 0;
 705 }
 706
 707 static int btusb_send_frame(struct sk_buff *skb)
 708 {
 709         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 710         struct btusb_data *data = hdev->driver_data;
 711         struct usb_ctrlrequest *dr;
 712         struct urb *urb;
 713         unsigned int pipe;
 714         int err;
 715
 716         BT_DBG("%s", hdev->name);
 717
 718         if (!test_bit(HCI_RUNNING, &hdev->flags))
 719                 return -EBUSY;
 720
 721         switch (bt_cb(skb)->pkt_type) {
 722         case HCI_COMMAND_PKT:
 723                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 724                 if (!urb)
 725                         return -ENOMEM;
 726
 727                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 728                 if (!dr) {
 729                         usb_free_urb(urb);
 730                         return -ENOMEM;
 731                 }
 732
 733                 dr->bRequestType = data->cmdreq_type;
 734                 dr->bRequest     = 0;
 735                 dr->wIndex       = 0;
 736                 dr->wValue       = 0;
 737                 dr->wLength      = __cpu_to_le16(skb->len);
 738
 739                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 740
 741                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 742                                 skb->data, skb->len, btusb_tx_complete, skb);
 743
 744                 hdev->stat.cmd_tx++;
 745                 break;
 746
 747         case HCI_ACLDATA_PKT:
 748                 if (!data->bulk_tx_ep)
 749                         return -ENODEV;
 750
 751                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 752                 if (!urb)
 753                         return -ENOMEM;
 754
 755                 pipe = usb_sndbulkpipe(data->udev,
 756                                         data->bulk_tx_ep->bEndpointAddress);
 757
 758                 usb_fill_bulk_urb(urb, data->udev, pipe,
 759                                 skb->data, skb->len, btusb_tx_complete, skb);
 760
 761                 hdev->stat.acl_tx++;
 762                 break;
 763
 764         case HCI_SCODATA_PKT:
 765                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 766                         return -ENODEV;
 767
 768                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 769                 if (!urb)
 770                         return -ENOMEM;
 771
 772                 pipe = usb_sndisocpipe(data->udev,
 773                                         data->isoc_tx_ep->bEndpointAddress);
 774
 775                 usb_fill_int_urb(urb, data->udev, pipe,
 776                                 skb->data, skb->len, btusb_isoc_tx_complete,
 777                                 skb, data->isoc_tx_ep->bInterval);
 778
 779                 urb->transfer_flags  = URB_ISO_ASAP;
 780
 781                 __fill_isoc_descriptor(urb, skb->len,
 782                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 783
 784                 hdev->stat.sco_tx++;
 785                 goto skip_waking;
 786
 787         default:
 788                 return -EILSEQ;
 789         }
 790
 791         err = inc_tx(data);
 792         if (err) {
 793                 usb_anchor_urb(urb, &data->deferred);
 794                 schedule_work(&data->waker);
 795                 err = 0;
 796                 goto done;
 797         }
 798
 799 skip_waking:
 800         usb_anchor_urb(urb, &data->tx_anchor);
 801
 802         err = usb_submit_urb(urb, GFP_ATOMIC);
 803         if (err < 0) {
 804                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 805                 kfree(urb->setup_packet);
 806                 usb_unanchor_urb(urb);
 807         } else {
 808                 usb_mark_last_busy(data->udev);
 809         }
 810
 811 done:
 812         usb_free_urb(urb);
 813         return err;
 814 }
 815
 816 static void btusb_destruct(struct hci_dev *hdev)
 817 {
 818         struct btusb_data *data = hdev->driver_data;
 819
 820         BT_DBG("%s", hdev->name);
 821
 822         kfree(data);
 823 }
 824
 825 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 826 {
 827         struct btusb_data *data = hdev->driver_data;
 828
 829         BT_DBG("%s evt %d", hdev->name, evt);
 830
 831         if (hdev->conn_hash.sco_num != data->sco_num) {
 832                 data->sco_num = hdev->conn_hash.sco_num;
 833                 schedule_work(&data->work);
 834         }
 835 }
 836
 837 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 838 {
 839         struct btusb_data *data = hdev->driver_data;
 840         struct usb_interface *intf = data->isoc;
 841         struct usb_endpoint_descriptor *ep_desc;
 842         int i, err;
 843
 844         if (!data->isoc)
 845                 return -ENODEV;
 846
 847         err = usb_set_interface(data->udev, 1, altsetting);
 848         if (err < 0) {
 849                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 850                 return err;
 851         }
 852
 853         data->isoc_altsetting = altsetting;
 854
 855         data->isoc_tx_ep = NULL;
 856         data->isoc_rx_ep = NULL;
 857
 858         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 859                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 860
 861                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 862                         data->isoc_tx_ep = ep_desc;
 863                         continue;
 864                 }
 865
 866                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 867                         data->isoc_rx_ep = ep_desc;
 868                         continue;
 869                 }
 870         }
 871
 872         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 873                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 874                 return -ENODEV;
 875         }
 876
 877         return 0;
 878 }
 879
 880 static void btusb_work(struct work_struct *work)
 881 {
 882         struct btusb_data *data = container_of(work, struct btusb_data, work);
 883         struct hci_dev *hdev = data->hdev;
 884         int err;
 885
 886         if (hdev->conn_hash.sco_num > 0) {
 887                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 888                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 889                         if (err < 0) {
 890                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 891                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 892                                 return;
 893                         }
 894
 895                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 896                 }
 897                 if (data->isoc_altsetting != 2) {
 898                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 899                         usb_kill_anchored_urbs(&data->isoc_anchor);
 900
 901                         if (__set_isoc_interface(hdev, 2) < 0)
 902                                 return;
 903                 }
 904
 905                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 906                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 907                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 908                         else
 909                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 910                 }
 911         } else {
 912                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 913                 usb_kill_anchored_urbs(&data->isoc_anchor);
 914
 915                 __set_isoc_interface(hdev, 0);
 916                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 917                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 918         }
 919 }
 920
 921 static void btusb_waker(struct work_struct *work)
 922 {
 923         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 924         int err;
 925
 926         err = usb_autopm_get_interface(data->intf);
 927         if (err < 0)
 928                 return;
 929
 930         usb_autopm_put_interface(data->intf);
 931 }
 932
 933 static int btusb_probe(struct usb_interface *intf,
 934                                 const struct usb_device_id *id)
 935 {
 936         struct usb_endpoint_descriptor *ep_desc;
 937         struct btusb_data *data;
 938         struct hci_dev *hdev;
 939         int i, err;
 940
 941         BT_DBG("intf %p id %p", intf, id);
 942
 943         /* interface numbers are hardcoded in the spec */
 944         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 945                 return -ENODEV;
 946
 947         if (!id->driver_info) {
 948                 const struct usb_device_id *match;
 949                 match = usb_match_id(intf, blacklist_table);
 950                 if (match)
 951                         id = match;
 952         }
 953
 954         if (id->driver_info == BTUSB_IGNORE)
 955                 return -ENODEV;
 956
 957         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 958                 return -ENODEV;
 959
 960         if (ignore_csr && id->driver_info & BTUSB_CSR)
 961                 return -ENODEV;
 962
 963         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 964                 return -ENODEV;
 965
 966         if (id->driver_info & BTUSB_ATH3012) {
 967                 struct usb_device *udev = interface_to_usbdev(intf);
 968
 969                 /* Old firmware would otherwise let ath3k driver load
 970                  * patch and sysconfig files */
 971                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 972                         return -ENODEV;
 973         }
 974
 975         data = kzalloc(sizeof(*data), GFP_KERNEL);
 976         if (!data)
 977                 return -ENOMEM;
 978
 979         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 980                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 981
 982                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 983                         data->intr_ep = ep_desc;
 984                         continue;
 985                 }
 986
 987                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 988                         data->bulk_tx_ep = ep_desc;
 989                         continue;
 990                 }
 991
 992                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 993                         data->bulk_rx_ep = ep_desc;
 994                         continue;
 995                 }
 996         }
 997
 998         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 999                 kfree(data);
1000                 return -ENODEV;
1001         }
1002
1003         data->cmdreq_type = USB_TYPE_CLASS;
1004
1005         data->udev = interface_to_usbdev(intf);
1006         data->intf = intf;
1007
1008         spin_lock_init(&data->lock);
1009
1010         INIT_WORK(&data->work, btusb_work);
1011         INIT_WORK(&data->waker, btusb_waker);
1012         spin_lock_init(&data->txlock);
1013
1014         init_usb_anchor(&data->tx_anchor);
1015         init_usb_anchor(&data->intr_anchor);
1016         init_usb_anchor(&data->bulk_anchor);
1017         init_usb_anchor(&data->isoc_anchor);
1018         init_usb_anchor(&data->deferred);
1019
1020         hdev = hci_alloc_dev();
1021         if (!hdev) {
1022                 kfree(data);
1023                 return -ENOMEM;
1024         }
1025
1026         hdev->bus = HCI_USB;
1027         hdev->driver_data = data;
1028
1029         data->hdev = hdev;
1030
1031         SET_HCIDEV_DEV(hdev, &intf->dev);
1032
1033         hdev->open     = btusb_open;
1034         hdev->close    = btusb_close;
1035         hdev->flush    = btusb_flush;
1036         hdev->send     = btusb_send_frame;
1037         hdev->destruct = btusb_destruct;
1038         hdev->notify   = btusb_notify;
1039
1040         hdev->owner = THIS_MODULE;
1041
1042         /* Interface numbers are hardcoded in the specification */
1043         data->isoc = usb_ifnum_to_if(data->udev, 1);
1044
1045         if (!reset)
1046                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1047
1048         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1049                 if (!disable_scofix)
1050                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1051         }
1052
1053         if (id->driver_info & BTUSB_BROKEN_ISOC)
1054                 data->isoc = NULL;
1055
1056         if (id->driver_info & BTUSB_DIGIANSWER) {
1057                 data->cmdreq_type = USB_TYPE_VENDOR;
1058                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1059         }
1060
1061         if (id->driver_info & BTUSB_CSR) {
1062                 struct usb_device *udev = data->udev;
1063
1064                 /* Old firmware would otherwise execute USB reset */
1065                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1066                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1067         }
1068
1069         if (id->driver_info & BTUSB_SNIFFER) {
1070                 struct usb_device *udev = data->udev;
1071
1072                 /* New sniffer firmware has crippled HCI interface */
1073                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1074                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1075
1076                 data->isoc = NULL;
1077         }
1078
1079         if (id->driver_info & BTUSB_BCM92035) {
1080                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1081                 struct sk_buff *skb;
1082
1083                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1084                 if (skb) {
1085                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1086                         skb_queue_tail(&hdev->driver_init, skb);
1087                 }
1088         }
1089
1090         if (data->isoc) {
1091                 err = usb_driver_claim_interface(&btusb_driver,
1092                                                         data->isoc, data);
1093                 if (err < 0) {
1094                         hci_free_dev(hdev);
1095                         kfree(data);
1096                         return err;
1097                 }
1098         }
1099
1100         err = hci_register_dev(hdev);
1101         if (err < 0) {
1102                 hci_free_dev(hdev);
1103                 kfree(data);
1104                 return err;
1105         }
1106
1107         usb_set_intfdata(intf, data);
1108
1109         return 0;
1110 }
1111
1112 static void btusb_disconnect(struct usb_interface *intf)
1113 {
1114         struct btusb_data *data = usb_get_intfdata(intf);
1115         struct hci_dev *hdev;
1116
1117         BT_DBG("intf %p", intf);
1118
1119         if (!data)
1120                 return;
1121
1122         hdev = data->hdev;
1123
1124         __hci_dev_hold(hdev);
1125
1126         usb_set_intfdata(data->intf, NULL);
1127
1128         if (data->isoc)
1129                 usb_set_intfdata(data->isoc, NULL);
1130
1131         hci_unregister_dev(hdev);
1132
1133         if (intf == data->isoc)
1134                 usb_driver_release_interface(&btusb_driver, data->intf);
1135         else if (data->isoc)
1136                 usb_driver_release_interface(&btusb_driver, data->isoc);
1137
1138         __hci_dev_put(hdev);
1139
1140         hci_free_dev(hdev);
1141 }
1142
1143 #ifdef CONFIG_PM
1144 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1145 {
1146         struct btusb_data *data = usb_get_intfdata(intf);
1147
1148         BT_DBG("intf %p", intf);
1149
1150         if (data->suspend_count++)
1151                 return 0;
1152
1153         spin_lock_irq(&data->txlock);
1154         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1155                 set_bit(BTUSB_SUSPENDING, &data->flags);
1156                 spin_unlock_irq(&data->txlock);
1157         } else {
1158                 spin_unlock_irq(&data->txlock);
1159                 data->suspend_count--;
1160                 return -EBUSY;
1161         }
1162
1163         cancel_work_sync(&data->work);
1164
1165         btusb_stop_traffic(data);
1166         usb_kill_anchored_urbs(&data->tx_anchor);
1167
1168         return 0;
1169 }
1170
1171 static void play_deferred(struct btusb_data *data)
1172 {
1173         struct urb *urb;
1174         int err;
1175
1176         while ((urb = usb_get_from_anchor(&data->deferred))) {
1177                 err = usb_submit_urb(urb, GFP_ATOMIC);
1178                 if (err < 0)
1179                         break;
1180
1181                 data->tx_in_flight++;
1182         }
1183         usb_scuttle_anchored_urbs(&data->deferred);
1184 }
1185
1186 static int btusb_resume(struct usb_interface *intf)
1187 {
1188         struct btusb_data *data = usb_get_intfdata(intf);
1189         struct hci_dev *hdev = data->hdev;
1190         int err = 0;
1191
1192         BT_DBG("intf %p", intf);
1193
1194         if (--data->suspend_count)
1195                 return 0;
1196
1197         if (!test_bit(HCI_RUNNING, &hdev->flags))
1198                 goto done;
1199
1200         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1201                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1202                 if (err < 0) {
1203                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1204                         goto failed;
1205                 }
1206         }
1207
1208         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1209                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1210                 if (err < 0) {
1211                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1212                         goto failed;
1213                 }
1214
1215                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1216         }
1217
1218         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1219                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1220                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1221                 else
1222                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1223         }
1224
1225         spin_lock_irq(&data->txlock);
1226         play_deferred(data);
1227         clear_bit(BTUSB_SUSPENDING, &data->flags);
1228         spin_unlock_irq(&data->txlock);
1229         schedule_work(&data->work);
1230
1231         return 0;
1232
1233 failed:
1234         usb_scuttle_anchored_urbs(&data->deferred);
1235 done:
1236         spin_lock_irq(&data->txlock);
1237         clear_bit(BTUSB_SUSPENDING, &data->flags);
1238         spin_unlock_irq(&data->txlock);
1239
1240         return err;
1241 }
1242 #endif
1243
1244 static struct usb_driver btusb_driver = {
1245         .name           = "btusb",
1246         .probe          = btusb_probe,
1247         .disconnect     = btusb_disconnect,
1248 #ifdef CONFIG_PM
1249         .suspend        = btusb_suspend,
1250         .resume         = btusb_resume,
1251 #endif
1252         .id_table       = btusb_table,
1253         .supports_autosuspend = 1,
1254 };
1255
1256 static int __init btusb_init(void)
1257 {
1258         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1259
1260         return usb_register(&btusb_driver);
1261 }
1262
1263 static void __exit btusb_exit(void)
1264 {
1265         usb_deregister(&btusb_driver);
1266 }
1267
1268 module_init(btusb_init);
1269 module_exit(btusb_exit);
1270
1271 module_param(ignore_dga, bool, 0644);
1272 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1273
1274 module_param(ignore_csr, bool, 0644);
1275 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1276
1277 module_param(ignore_sniffer, bool, 0644);
1278 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1279
1280 module_param(disable_scofix, bool, 0644);
1281 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1282
1283 module_param(force_scofix, bool, 0644);
1284 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1285
1286 module_param(reset, bool, 0644);
1287 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1288
1289 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1290 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1291 MODULE_VERSION(VERSION);
1292 MODULE_LICENSE("GPL");