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         /* MediaTek MT76x0E */
  67         { USB_DEVICE(0x0e8d, 0x763f) },
  68
  69         /* Broadcom SoftSailing reporting vendor specific */
  70         { USB_DEVICE(0x0a5c, 0x21e1) },
  71
  72         /* Apple MacBookPro 7,1 */
  73         { USB_DEVICE(0x05ac, 0x8213) },
  74
  75         /* Apple iMac11,1 */
  76         { USB_DEVICE(0x05ac, 0x8215) },
  77
  78         /* Apple MacBookPro6,2 */
  79         { USB_DEVICE(0x05ac, 0x8218) },
  80
  81         /* Apple MacBookAir3,1, MacBookAir3,2 */
  82         { USB_DEVICE(0x05ac, 0x821b) },
  83
  84         /* Apple MacBookAir4,1 */
  85         { USB_DEVICE(0x05ac, 0x821f) },
  86
  87         /* Apple MacBookPro8,2 */
  88         { USB_DEVICE(0x05ac, 0x821a) },
  89
  90         /* Apple MacMini5,1 */
  91         { USB_DEVICE(0x05ac, 0x8281) },
  92
  93         /* AVM BlueFRITZ! USB v2.0 */
  94         { USB_DEVICE(0x057c, 0x3800) },
  95
  96         /* Bluetooth Ultraport Module from IBM */
  97         { USB_DEVICE(0x04bf, 0x030a) },
  98
  99         /* ALPS Modules with non-standard id */
 100         { USB_DEVICE(0x044e, 0x3001) },
 101         { USB_DEVICE(0x044e, 0x3002) },
 102
 103         /* Ericsson with non-standard id */
 104         { USB_DEVICE(0x0bdb, 0x1002) },
 105
 106         /* Canyon CN-BTU1 with HID interfaces */
 107         { USB_DEVICE(0x0c10, 0x0000) },
 108
 109         /* Broadcom BCM20702A0 */
 110         { USB_DEVICE(0x0b05, 0x17b5) },
 111         { USB_DEVICE(0x04ca, 0x2003) },
 112         { USB_DEVICE(0x0489, 0xe042) },
 113         { USB_DEVICE(0x413c, 0x8197) },
 114
 115         /* Foxconn - Hon Hai */
 116         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 117
 118         /*Broadcom devices with vendor specific id */
 119         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 120
 121         { }     /* Terminating entry */
 122 };
 123
 124 MODULE_DEVICE_TABLE(usb, btusb_table);
 125
 126 static struct usb_device_id blacklist_table[] = {
 127         /* CSR BlueCore devices */
 128         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 129
 130         /* Broadcom BCM2033 without firmware */
 131         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 132
 133         /* Atheros 3011 with sflash firmware */
 134         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 135         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 136         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 137         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 138         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 139         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 140
 141         /* Atheros AR9285 Malbec with sflash firmware */
 142         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 143
 144         /* Atheros 3012 with sflash firmware */
 145         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 164
 165         /* Atheros AR5BBU12 with sflash firmware */
 166         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 167
 168         /* Atheros AR5BBU12 with sflash firmware */
 169         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 171
 172         /* Broadcom BCM2035 */
 173         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 174         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 175         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 176
 177         /* Broadcom BCM2045 */
 178         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 179         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 180
 181         /* IBM/Lenovo ThinkPad with Broadcom chip */
 182         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 183         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 184
 185         /* HP laptop with Broadcom chip */
 186         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 187
 188         /* Dell laptop with Broadcom chip */
 189         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 190
 191         /* Dell Wireless 370 and 410 devices */
 192         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 193         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 194
 195         /* Belkin F8T012 and F8T013 devices */
 196         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 197         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 198
 199         /* Asus WL-BTD202 device */
 200         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 201
 202         /* Kensington Bluetooth USB adapter */
 203         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 204
 205         /* RTX Telecom based adapters with buggy SCO support */
 206         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 207         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 208
 209         /* CONWISE Technology based adapters with buggy SCO support */
 210         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 211
 212         /* Digianswer devices */
 213         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 214         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 215
 216         /* CSR BlueCore Bluetooth Sniffer */
 217         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 218
 219         /* Frontline ComProbe Bluetooth Sniffer */
 220         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 221
 222         { }     /* Terminating entry */
 223 };
 224
 225 #define BTUSB_MAX_ISOC_FRAMES   10
 226
 227 #define BTUSB_INTR_RUNNING      0
 228 #define BTUSB_BULK_RUNNING      1
 229 #define BTUSB_ISOC_RUNNING      2
 230 #define BTUSB_SUSPENDING        3
 231 #define BTUSB_DID_ISO_RESUME    4
 232
 233 struct btusb_data {
 234         struct hci_dev       *hdev;
 235         struct usb_device    *udev;
 236         struct usb_interface *intf;
 237         struct usb_interface *isoc;
 238
 239         spinlock_t lock;
 240
 241         unsigned long flags;
 242
 243         struct work_struct work;
 244         struct work_struct waker;
 245
 246         struct usb_anchor tx_anchor;
 247         struct usb_anchor intr_anchor;
 248         struct usb_anchor bulk_anchor;
 249         struct usb_anchor isoc_anchor;
 250         struct usb_anchor deferred;
 251         int tx_in_flight;
 252         spinlock_t txlock;
 253
 254         struct usb_endpoint_descriptor *intr_ep;
 255         struct usb_endpoint_descriptor *bulk_tx_ep;
 256         struct usb_endpoint_descriptor *bulk_rx_ep;
 257         struct usb_endpoint_descriptor *isoc_tx_ep;
 258         struct usb_endpoint_descriptor *isoc_rx_ep;
 259
 260         __u8 cmdreq_type;
 261
 262         unsigned int sco_num;
 263         int isoc_altsetting;
 264         int suspend_count;
 265 };
 266
 267 static int inc_tx(struct btusb_data *data)
 268 {
 269         unsigned long flags;
 270         int rv;
 271
 272         spin_lock_irqsave(&data->txlock, flags);
 273         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 274         if (!rv)
 275                 data->tx_in_flight++;
 276         spin_unlock_irqrestore(&data->txlock, flags);
 277
 278         return rv;
 279 }
 280
 281 static void btusb_intr_complete(struct urb *urb)
 282 {
 283         struct hci_dev *hdev = urb->context;
 284         struct btusb_data *data = hdev->driver_data;
 285         int err;
 286
 287         BT_DBG("%s urb %p status %d count %d", hdev->name,
 288                                         urb, urb->status, urb->actual_length);
 289
 290         if (!test_bit(HCI_RUNNING, &hdev->flags))
 291                 return;
 292
 293         if (urb->status == 0) {
 294                 hdev->stat.byte_rx += urb->actual_length;
 295
 296                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 297                                                 urb->transfer_buffer,
 298                                                 urb->actual_length) < 0) {
 299                         BT_ERR("%s corrupted event packet", hdev->name);
 300                         hdev->stat.err_rx++;
 301                 }
 302         }
 303
 304         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 305                 return;
 306
 307         usb_mark_last_busy(data->udev);
 308         usb_anchor_urb(urb, &data->intr_anchor);
 309
 310         err = usb_submit_urb(urb, GFP_ATOMIC);
 311         if (err < 0) {
 312                 /* -EPERM: urb is being killed;
 313                  * -ENODEV: device got disconnected */
 314                 if (err != -EPERM && err != -ENODEV)
 315                         BT_ERR("%s urb %p failed to resubmit (%d)",
 316                                                 hdev->name, urb, -err);
 317                 usb_unanchor_urb(urb);
 318         }
 319 }
 320
 321 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 322 {
 323         struct btusb_data *data = hdev->driver_data;
 324         struct urb *urb;
 325         unsigned char *buf;
 326         unsigned int pipe;
 327         int err, size;
 328
 329         BT_DBG("%s", hdev->name);
 330
 331         if (!data->intr_ep)
 332                 return -ENODEV;
 333
 334         urb = usb_alloc_urb(0, mem_flags);
 335         if (!urb)
 336                 return -ENOMEM;
 337
 338         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 339
 340         buf = kmalloc(size, mem_flags);
 341         if (!buf) {
 342                 usb_free_urb(urb);
 343                 return -ENOMEM;
 344         }
 345
 346         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 347
 348         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 349                                                 btusb_intr_complete, hdev,
 350                                                 data->intr_ep->bInterval);
 351
 352         urb->transfer_flags |= URB_FREE_BUFFER;
 353
 354         usb_anchor_urb(urb, &data->intr_anchor);
 355
 356         err = usb_submit_urb(urb, mem_flags);
 357         if (err < 0) {
 358                 BT_ERR("%s urb %p submission failed (%d)",
 359                                                 hdev->name, urb, -err);
 360                 usb_unanchor_urb(urb);
 361         }
 362
 363         usb_free_urb(urb);
 364
 365         return err;
 366 }
 367
 368 static void btusb_bulk_complete(struct urb *urb)
 369 {
 370         struct hci_dev *hdev = urb->context;
 371         struct btusb_data *data = hdev->driver_data;
 372         int err;
 373
 374         BT_DBG("%s urb %p status %d count %d", hdev->name,
 375                                         urb, urb->status, urb->actual_length);
 376
 377         if (!test_bit(HCI_RUNNING, &hdev->flags))
 378                 return;
 379
 380         if (urb->status == 0) {
 381                 hdev->stat.byte_rx += urb->actual_length;
 382
 383                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 384                                                 urb->transfer_buffer,
 385                                                 urb->actual_length) < 0) {
 386                         BT_ERR("%s corrupted ACL packet", hdev->name);
 387                         hdev->stat.err_rx++;
 388                 }
 389         }
 390
 391         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 392                 return;
 393
 394         usb_anchor_urb(urb, &data->bulk_anchor);
 395         usb_mark_last_busy(data->udev);
 396
 397         err = usb_submit_urb(urb, GFP_ATOMIC);
 398         if (err < 0) {
 399                 /* -EPERM: urb is being killed;
 400                  * -ENODEV: device got disconnected */
 401                 if (err != -EPERM && err != -ENODEV)
 402                         BT_ERR("%s urb %p failed to resubmit (%d)",
 403                                                 hdev->name, urb, -err);
 404                 usb_unanchor_urb(urb);
 405         }
 406 }
 407
 408 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 409 {
 410         struct btusb_data *data = hdev->driver_data;
 411         struct urb *urb;
 412         unsigned char *buf;
 413         unsigned int pipe;
 414         int err, size = HCI_MAX_FRAME_SIZE;
 415
 416         BT_DBG("%s", hdev->name);
 417
 418         if (!data->bulk_rx_ep)
 419                 return -ENODEV;
 420
 421         urb = usb_alloc_urb(0, mem_flags);
 422         if (!urb)
 423                 return -ENOMEM;
 424
 425         buf = kmalloc(size, mem_flags);
 426         if (!buf) {
 427                 usb_free_urb(urb);
 428                 return -ENOMEM;
 429         }
 430
 431         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 432
 433         usb_fill_bulk_urb(urb, data->udev, pipe,
 434                                         buf, size, btusb_bulk_complete, hdev);
 435
 436         urb->transfer_flags |= URB_FREE_BUFFER;
 437
 438         usb_mark_last_busy(data->udev);
 439         usb_anchor_urb(urb, &data->bulk_anchor);
 440
 441         err = usb_submit_urb(urb, mem_flags);
 442         if (err < 0) {
 443                 BT_ERR("%s urb %p submission failed (%d)",
 444                                                 hdev->name, urb, -err);
 445                 usb_unanchor_urb(urb);
 446         }
 447
 448         usb_free_urb(urb);
 449
 450         return err;
 451 }
 452
 453 static void btusb_isoc_complete(struct urb *urb)
 454 {
 455         struct hci_dev *hdev = urb->context;
 456         struct btusb_data *data = hdev->driver_data;
 457         int i, err;
 458
 459         BT_DBG("%s urb %p status %d count %d", hdev->name,
 460                                         urb, urb->status, urb->actual_length);
 461
 462         if (!test_bit(HCI_RUNNING, &hdev->flags))
 463                 return;
 464
 465         if (urb->status == 0) {
 466                 for (i = 0; i < urb->number_of_packets; i++) {
 467                         unsigned int offset = urb->iso_frame_desc[i].offset;
 468                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 469
 470                         if (urb->iso_frame_desc[i].status)
 471                                 continue;
 472
 473                         hdev->stat.byte_rx += length;
 474
 475                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 476                                                 urb->transfer_buffer + offset,
 477                                                                 length) < 0) {
 478                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 479                                 hdev->stat.err_rx++;
 480                         }
 481                 }
 482         }
 483
 484         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 485                 return;
 486
 487         usb_anchor_urb(urb, &data->isoc_anchor);
 488
 489         err = usb_submit_urb(urb, GFP_ATOMIC);
 490         if (err < 0) {
 491                 /* -EPERM: urb is being killed;
 492                  * -ENODEV: device got disconnected */
 493                 if (err != -EPERM && err != -ENODEV)
 494                         BT_ERR("%s urb %p failed to resubmit (%d)",
 495                                                 hdev->name, urb, -err);
 496                 usb_unanchor_urb(urb);
 497         }
 498 }
 499
 500 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 501 {
 502         int i, offset = 0;
 503
 504         BT_DBG("len %d mtu %d", len, mtu);
 505
 506         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 507                                         i++, offset += mtu, len -= mtu) {
 508                 urb->iso_frame_desc[i].offset = offset;
 509                 urb->iso_frame_desc[i].length = mtu;
 510         }
 511
 512         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 513                 urb->iso_frame_desc[i].offset = offset;
 514                 urb->iso_frame_desc[i].length = len;
 515                 i++;
 516         }
 517
 518         urb->number_of_packets = i;
 519 }
 520
 521 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 522 {
 523         struct btusb_data *data = hdev->driver_data;
 524         struct urb *urb;
 525         unsigned char *buf;
 526         unsigned int pipe;
 527         int err, size;
 528
 529         BT_DBG("%s", hdev->name);
 530
 531         if (!data->isoc_rx_ep)
 532                 return -ENODEV;
 533
 534         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 535         if (!urb)
 536                 return -ENOMEM;
 537
 538         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 539                                                 BTUSB_MAX_ISOC_FRAMES;
 540
 541         buf = kmalloc(size, mem_flags);
 542         if (!buf) {
 543                 usb_free_urb(urb);
 544                 return -ENOMEM;
 545         }
 546
 547         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 548
 549         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 550                                 hdev, data->isoc_rx_ep->bInterval);
 551
 552         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 553
 554         __fill_isoc_descriptor(urb, size,
 555                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 556
 557         usb_anchor_urb(urb, &data->isoc_anchor);
 558
 559         err = usb_submit_urb(urb, mem_flags);
 560         if (err < 0) {
 561                 BT_ERR("%s urb %p submission failed (%d)",
 562                                                 hdev->name, urb, -err);
 563                 usb_unanchor_urb(urb);
 564         }
 565
 566         usb_free_urb(urb);
 567
 568         return err;
 569 }
 570
 571 static void btusb_tx_complete(struct urb *urb)
 572 {
 573         struct sk_buff *skb = urb->context;
 574         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 575         struct btusb_data *data = hdev->driver_data;
 576
 577         BT_DBG("%s urb %p status %d count %d", hdev->name,
 578                                         urb, urb->status, urb->actual_length);
 579
 580         if (!test_bit(HCI_RUNNING, &hdev->flags))
 581                 goto done;
 582
 583         if (!urb->status)
 584                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 585         else
 586                 hdev->stat.err_tx++;
 587
 588 done:
 589         spin_lock(&data->txlock);
 590         data->tx_in_flight--;
 591         spin_unlock(&data->txlock);
 592
 593         kfree(urb->setup_packet);
 594
 595         kfree_skb(skb);
 596 }
 597
 598 static void btusb_isoc_tx_complete(struct urb *urb)
 599 {
 600         struct sk_buff *skb = urb->context;
 601         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 602
 603         BT_DBG("%s urb %p status %d count %d", hdev->name,
 604                                         urb, urb->status, urb->actual_length);
 605
 606         if (!test_bit(HCI_RUNNING, &hdev->flags))
 607                 goto done;
 608
 609         if (!urb->status)
 610                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 611         else
 612                 hdev->stat.err_tx++;
 613
 614 done:
 615         kfree(urb->setup_packet);
 616
 617         kfree_skb(skb);
 618 }
 619
 620 static int btusb_open(struct hci_dev *hdev)
 621 {
 622         struct btusb_data *data = hdev->driver_data;
 623         int err;
 624
 625         BT_DBG("%s", hdev->name);
 626
 627         err = usb_autopm_get_interface(data->intf);
 628         if (err < 0)
 629                 return err;
 630
 631         data->intf->needs_remote_wakeup = 1;
 632
 633         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 634                 goto done;
 635
 636         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 637                 goto done;
 638
 639         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 640         if (err < 0)
 641                 goto failed;
 642
 643         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 644         if (err < 0) {
 645                 usb_kill_anchored_urbs(&data->intr_anchor);
 646                 goto failed;
 647         }
 648
 649         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 650         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 651
 652 done:
 653         usb_autopm_put_interface(data->intf);
 654         return 0;
 655
 656 failed:
 657         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 658         clear_bit(HCI_RUNNING, &hdev->flags);
 659         usb_autopm_put_interface(data->intf);
 660         return err;
 661 }
 662
 663 static void btusb_stop_traffic(struct btusb_data *data)
 664 {
 665         usb_kill_anchored_urbs(&data->intr_anchor);
 666         usb_kill_anchored_urbs(&data->bulk_anchor);
 667         usb_kill_anchored_urbs(&data->isoc_anchor);
 668 }
 669
 670 static int btusb_close(struct hci_dev *hdev)
 671 {
 672         struct btusb_data *data = hdev->driver_data;
 673         int err;
 674
 675         BT_DBG("%s", hdev->name);
 676
 677         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 678                 return 0;
 679
 680         cancel_work_sync(&data->work);
 681         cancel_work_sync(&data->waker);
 682
 683         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 684         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 685         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 686
 687         btusb_stop_traffic(data);
 688         err = usb_autopm_get_interface(data->intf);
 689         if (err < 0)
 690                 goto failed;
 691
 692         data->intf->needs_remote_wakeup = 0;
 693         usb_autopm_put_interface(data->intf);
 694
 695 failed:
 696         usb_scuttle_anchored_urbs(&data->deferred);
 697         return 0;
 698 }
 699
 700 static int btusb_flush(struct hci_dev *hdev)
 701 {
 702         struct btusb_data *data = hdev->driver_data;
 703
 704         BT_DBG("%s", hdev->name);
 705
 706         usb_kill_anchored_urbs(&data->tx_anchor);
 707
 708         return 0;
 709 }
 710
 711 static int btusb_send_frame(struct sk_buff *skb)
 712 {
 713         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 714         struct btusb_data *data = hdev->driver_data;
 715         struct usb_ctrlrequest *dr;
 716         struct urb *urb;
 717         unsigned int pipe;
 718         int err;
 719
 720         BT_DBG("%s", hdev->name);
 721
 722         if (!test_bit(HCI_RUNNING, &hdev->flags))
 723                 return -EBUSY;
 724
 725         switch (bt_cb(skb)->pkt_type) {
 726         case HCI_COMMAND_PKT:
 727                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 728                 if (!urb)
 729                         return -ENOMEM;
 730
 731                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 732                 if (!dr) {
 733                         usb_free_urb(urb);
 734                         return -ENOMEM;
 735                 }
 736
 737                 dr->bRequestType = data->cmdreq_type;
 738                 dr->bRequest     = 0;
 739                 dr->wIndex       = 0;
 740                 dr->wValue       = 0;
 741                 dr->wLength      = __cpu_to_le16(skb->len);
 742
 743                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 744
 745                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 746                                 skb->data, skb->len, btusb_tx_complete, skb);
 747
 748                 hdev->stat.cmd_tx++;
 749                 break;
 750
 751         case HCI_ACLDATA_PKT:
 752                 if (!data->bulk_tx_ep)
 753                         return -ENODEV;
 754
 755                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 756                 if (!urb)
 757                         return -ENOMEM;
 758
 759                 pipe = usb_sndbulkpipe(data->udev,
 760                                         data->bulk_tx_ep->bEndpointAddress);
 761
 762                 usb_fill_bulk_urb(urb, data->udev, pipe,
 763                                 skb->data, skb->len, btusb_tx_complete, skb);
 764
 765                 hdev->stat.acl_tx++;
 766                 break;
 767
 768         case HCI_SCODATA_PKT:
 769                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 770                         return -ENODEV;
 771
 772                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 773                 if (!urb)
 774                         return -ENOMEM;
 775
 776                 pipe = usb_sndisocpipe(data->udev,
 777                                         data->isoc_tx_ep->bEndpointAddress);
 778
 779                 usb_fill_int_urb(urb, data->udev, pipe,
 780                                 skb->data, skb->len, btusb_isoc_tx_complete,
 781                                 skb, data->isoc_tx_ep->bInterval);
 782
 783                 urb->transfer_flags  = URB_ISO_ASAP;
 784
 785                 __fill_isoc_descriptor(urb, skb->len,
 786                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 787
 788                 hdev->stat.sco_tx++;
 789                 goto skip_waking;
 790
 791         default:
 792                 return -EILSEQ;
 793         }
 794
 795         err = inc_tx(data);
 796         if (err) {
 797                 usb_anchor_urb(urb, &data->deferred);
 798                 schedule_work(&data->waker);
 799                 err = 0;
 800                 goto done;
 801         }
 802
 803 skip_waking:
 804         usb_anchor_urb(urb, &data->tx_anchor);
 805
 806         err = usb_submit_urb(urb, GFP_ATOMIC);
 807         if (err < 0) {
 808                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 809                 kfree(urb->setup_packet);
 810                 usb_unanchor_urb(urb);
 811         } else {
 812                 usb_mark_last_busy(data->udev);
 813         }
 814
 815 done:
 816         usb_free_urb(urb);
 817         return err;
 818 }
 819
 820 static void btusb_destruct(struct hci_dev *hdev)
 821 {
 822         struct btusb_data *data = hdev->driver_data;
 823
 824         BT_DBG("%s", hdev->name);
 825
 826         kfree(data);
 827 }
 828
 829 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 830 {
 831         struct btusb_data *data = hdev->driver_data;
 832
 833         BT_DBG("%s evt %d", hdev->name, evt);
 834
 835         if (hdev->conn_hash.sco_num != data->sco_num) {
 836                 data->sco_num = hdev->conn_hash.sco_num;
 837                 schedule_work(&data->work);
 838         }
 839 }
 840
 841 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 842 {
 843         struct btusb_data *data = hdev->driver_data;
 844         struct usb_interface *intf = data->isoc;
 845         struct usb_endpoint_descriptor *ep_desc;
 846         int i, err;
 847
 848         if (!data->isoc)
 849                 return -ENODEV;
 850
 851         err = usb_set_interface(data->udev, 1, altsetting);
 852         if (err < 0) {
 853                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 854                 return err;
 855         }
 856
 857         data->isoc_altsetting = altsetting;
 858
 859         data->isoc_tx_ep = NULL;
 860         data->isoc_rx_ep = NULL;
 861
 862         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 863                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 864
 865                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 866                         data->isoc_tx_ep = ep_desc;
 867                         continue;
 868                 }
 869
 870                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 871                         data->isoc_rx_ep = ep_desc;
 872                         continue;
 873                 }
 874         }
 875
 876         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 877                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 878                 return -ENODEV;
 879         }
 880
 881         return 0;
 882 }
 883
 884 static void btusb_work(struct work_struct *work)
 885 {
 886         struct btusb_data *data = container_of(work, struct btusb_data, work);
 887         struct hci_dev *hdev = data->hdev;
 888         int err;
 889
 890         if (hdev->conn_hash.sco_num > 0) {
 891                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 892                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 893                         if (err < 0) {
 894                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 895                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 896                                 return;
 897                         }
 898
 899                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 900                 }
 901                 if (data->isoc_altsetting != 2) {
 902                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 903                         usb_kill_anchored_urbs(&data->isoc_anchor);
 904
 905                         if (__set_isoc_interface(hdev, 2) < 0)
 906                                 return;
 907                 }
 908
 909                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 910                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 911                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 912                         else
 913                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 914                 }
 915         } else {
 916                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 917                 usb_kill_anchored_urbs(&data->isoc_anchor);
 918
 919                 __set_isoc_interface(hdev, 0);
 920                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 921                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 922         }
 923 }
 924
 925 static void btusb_waker(struct work_struct *work)
 926 {
 927         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 928         int err;
 929
 930         err = usb_autopm_get_interface(data->intf);
 931         if (err < 0)
 932                 return;
 933
 934         usb_autopm_put_interface(data->intf);
 935 }
 936
 937 static int btusb_probe(struct usb_interface *intf,
 938                                 const struct usb_device_id *id)
 939 {
 940         struct usb_endpoint_descriptor *ep_desc;
 941         struct btusb_data *data;
 942         struct hci_dev *hdev;
 943         int i, err;
 944
 945         BT_DBG("intf %p id %p", intf, id);
 946
 947         /* interface numbers are hardcoded in the spec */
 948         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 949                 return -ENODEV;
 950
 951         if (!id->driver_info) {
 952                 const struct usb_device_id *match;
 953                 match = usb_match_id(intf, blacklist_table);
 954                 if (match)
 955                         id = match;
 956         }
 957
 958         if (id->driver_info == BTUSB_IGNORE)
 959                 return -ENODEV;
 960
 961         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 962                 return -ENODEV;
 963
 964         if (ignore_csr && id->driver_info & BTUSB_CSR)
 965                 return -ENODEV;
 966
 967         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 968                 return -ENODEV;
 969
 970         if (id->driver_info & BTUSB_ATH3012) {
 971                 struct usb_device *udev = interface_to_usbdev(intf);
 972
 973                 /* Old firmware would otherwise let ath3k driver load
 974                  * patch and sysconfig files */
 975                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 976                         return -ENODEV;
 977         }
 978
 979         data = kzalloc(sizeof(*data), GFP_KERNEL);
 980         if (!data)
 981                 return -ENOMEM;
 982
 983         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 984                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 985
 986                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 987                         data->intr_ep = ep_desc;
 988                         continue;
 989                 }
 990
 991                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 992                         data->bulk_tx_ep = ep_desc;
 993                         continue;
 994                 }
 995
 996                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 997                         data->bulk_rx_ep = ep_desc;
 998                         continue;
 999                 }
1000         }
1001
1002         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1003                 kfree(data);
1004                 return -ENODEV;
1005         }
1006
1007         data->cmdreq_type = USB_TYPE_CLASS;
1008
1009         data->udev = interface_to_usbdev(intf);
1010         data->intf = intf;
1011
1012         spin_lock_init(&data->lock);
1013
1014         INIT_WORK(&data->work, btusb_work);
1015         INIT_WORK(&data->waker, btusb_waker);
1016         spin_lock_init(&data->txlock);
1017
1018         init_usb_anchor(&data->tx_anchor);
1019         init_usb_anchor(&data->intr_anchor);
1020         init_usb_anchor(&data->bulk_anchor);
1021         init_usb_anchor(&data->isoc_anchor);
1022         init_usb_anchor(&data->deferred);
1023
1024         hdev = hci_alloc_dev();
1025         if (!hdev) {
1026                 kfree(data);
1027                 return -ENOMEM;
1028         }
1029
1030         hdev->bus = HCI_USB;
1031         hdev->driver_data = data;
1032
1033         data->hdev = hdev;
1034
1035         SET_HCIDEV_DEV(hdev, &intf->dev);
1036
1037         hdev->open     = btusb_open;
1038         hdev->close    = btusb_close;
1039         hdev->flush    = btusb_flush;
1040         hdev->send     = btusb_send_frame;
1041         hdev->destruct = btusb_destruct;
1042         hdev->notify   = btusb_notify;
1043
1044         hdev->owner = THIS_MODULE;
1045
1046         /* Interface numbers are hardcoded in the specification */
1047         data->isoc = usb_ifnum_to_if(data->udev, 1);
1048
1049         if (!reset)
1050                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1051
1052         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1053                 if (!disable_scofix)
1054                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1055         }
1056
1057         if (id->driver_info & BTUSB_BROKEN_ISOC)
1058                 data->isoc = NULL;
1059
1060         if (id->driver_info & BTUSB_DIGIANSWER) {
1061                 data->cmdreq_type = USB_TYPE_VENDOR;
1062                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1063         }
1064
1065         if (id->driver_info & BTUSB_CSR) {
1066                 struct usb_device *udev = data->udev;
1067
1068                 /* Old firmware would otherwise execute USB reset */
1069                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1070                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1071         }
1072
1073         if (id->driver_info & BTUSB_SNIFFER) {
1074                 struct usb_device *udev = data->udev;
1075
1076                 /* New sniffer firmware has crippled HCI interface */
1077                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1078                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1079
1080                 data->isoc = NULL;
1081         }
1082
1083         if (id->driver_info & BTUSB_BCM92035) {
1084                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1085                 struct sk_buff *skb;
1086
1087                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1088                 if (skb) {
1089                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1090                         skb_queue_tail(&hdev->driver_init, skb);
1091                 }
1092         }
1093
1094         if (data->isoc) {
1095                 err = usb_driver_claim_interface(&btusb_driver,
1096                                                         data->isoc, data);
1097                 if (err < 0) {
1098                         hci_free_dev(hdev);
1099                         kfree(data);
1100                         return err;
1101                 }
1102         }
1103
1104         err = hci_register_dev(hdev);
1105         if (err < 0) {
1106                 hci_free_dev(hdev);
1107                 kfree(data);
1108                 return err;
1109         }
1110
1111         usb_set_intfdata(intf, data);
1112
1113         return 0;
1114 }
1115
1116 static void btusb_disconnect(struct usb_interface *intf)
1117 {
1118         struct btusb_data *data = usb_get_intfdata(intf);
1119         struct hci_dev *hdev;
1120
1121         BT_DBG("intf %p", intf);
1122
1123         if (!data)
1124                 return;
1125
1126         hdev = data->hdev;
1127
1128         __hci_dev_hold(hdev);
1129
1130         usb_set_intfdata(data->intf, NULL);
1131
1132         if (data->isoc)
1133                 usb_set_intfdata(data->isoc, NULL);
1134
1135         hci_unregister_dev(hdev);
1136
1137         if (intf == data->isoc)
1138                 usb_driver_release_interface(&btusb_driver, data->intf);
1139         else if (data->isoc)
1140                 usb_driver_release_interface(&btusb_driver, data->isoc);
1141
1142         __hci_dev_put(hdev);
1143
1144         hci_free_dev(hdev);
1145 }
1146
1147 #ifdef CONFIG_PM
1148 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1149 {
1150         struct btusb_data *data = usb_get_intfdata(intf);
1151
1152         BT_DBG("intf %p", intf);
1153
1154         if (data->suspend_count++)
1155                 return 0;
1156
1157         spin_lock_irq(&data->txlock);
1158         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1159                 set_bit(BTUSB_SUSPENDING, &data->flags);
1160                 spin_unlock_irq(&data->txlock);
1161         } else {
1162                 spin_unlock_irq(&data->txlock);
1163                 data->suspend_count--;
1164                 return -EBUSY;
1165         }
1166
1167         cancel_work_sync(&data->work);
1168
1169         btusb_stop_traffic(data);
1170         usb_kill_anchored_urbs(&data->tx_anchor);
1171
1172         return 0;
1173 }
1174
1175 static void play_deferred(struct btusb_data *data)
1176 {
1177         struct urb *urb;
1178         int err;
1179
1180         while ((urb = usb_get_from_anchor(&data->deferred))) {
1181                 err = usb_submit_urb(urb, GFP_ATOMIC);
1182                 if (err < 0)
1183                         break;
1184
1185                 data->tx_in_flight++;
1186         }
1187         usb_scuttle_anchored_urbs(&data->deferred);
1188 }
1189
1190 static int btusb_resume(struct usb_interface *intf)
1191 {
1192         struct btusb_data *data = usb_get_intfdata(intf);
1193         struct hci_dev *hdev = data->hdev;
1194         int err = 0;
1195
1196         BT_DBG("intf %p", intf);
1197
1198         if (--data->suspend_count)
1199                 return 0;
1200
1201         if (!test_bit(HCI_RUNNING, &hdev->flags))
1202                 goto done;
1203
1204         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1205                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1206                 if (err < 0) {
1207                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1208                         goto failed;
1209                 }
1210         }
1211
1212         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1213                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1214                 if (err < 0) {
1215                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1216                         goto failed;
1217                 }
1218
1219                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1220         }
1221
1222         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1223                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1224                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1225                 else
1226                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1227         }
1228
1229         spin_lock_irq(&data->txlock);
1230         play_deferred(data);
1231         clear_bit(BTUSB_SUSPENDING, &data->flags);
1232         spin_unlock_irq(&data->txlock);
1233         schedule_work(&data->work);
1234
1235         return 0;
1236
1237 failed:
1238         usb_scuttle_anchored_urbs(&data->deferred);
1239 done:
1240         spin_lock_irq(&data->txlock);
1241         clear_bit(BTUSB_SUSPENDING, &data->flags);
1242         spin_unlock_irq(&data->txlock);
1243
1244         return err;
1245 }
1246 #endif
1247
1248 static struct usb_driver btusb_driver = {
1249         .name           = "btusb",
1250         .probe          = btusb_probe,
1251         .disconnect     = btusb_disconnect,
1252 #ifdef CONFIG_PM
1253         .suspend        = btusb_suspend,
1254         .resume         = btusb_resume,
1255 #endif
1256         .id_table       = btusb_table,
1257         .supports_autosuspend = 1,
1258 };
1259
1260 static int __init btusb_init(void)
1261 {
1262         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1263
1264         return usb_register(&btusb_driver);
1265 }
1266
1267 static void __exit btusb_exit(void)
1268 {
1269         usb_deregister(&btusb_driver);
1270 }
1271
1272 module_init(btusb_init);
1273 module_exit(btusb_exit);
1274
1275 module_param(ignore_dga, bool, 0644);
1276 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1277
1278 module_param(ignore_csr, bool, 0644);
1279 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1280
1281 module_param(ignore_sniffer, bool, 0644);
1282 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1283
1284 module_param(disable_scofix, bool, 0644);
1285 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1286
1287 module_param(force_scofix, bool, 0644);
1288 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1289
1290 module_param(reset, bool, 0644);
1291 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1292
1293 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1294 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1295 MODULE_VERSION(VERSION);
1296 MODULE_LICENSE("GPL");