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(0x0b05, 0x17cb) },
 112         { USB_DEVICE(0x04ca, 0x2003) },
 113         { USB_DEVICE(0x0489, 0xe042) },
 114         { USB_DEVICE(0x413c, 0x8197) },
 115
 116         /* Foxconn - Hon Hai */
 117         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 118
 119         /*Broadcom devices with vendor specific id */
 120         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 121
 122         /* Belkin F8065bf - Broadcom based */
 123         { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01) },
 124
 125         { }     /* Terminating entry */
 126 };
 127
 128 MODULE_DEVICE_TABLE(usb, btusb_table);
 129
 130 static struct usb_device_id blacklist_table[] = {
 131         /* CSR BlueCore devices */
 132         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 133
 134         /* Broadcom BCM2033 without firmware */
 135         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 136
 137         /* Atheros 3011 with sflash firmware */
 138         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 139         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 140         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 141         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 142         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 143         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 144
 145         /* Atheros AR9285 Malbec with sflash firmware */
 146         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 147
 148         /* Atheros 3012 with sflash firmware */
 149         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 173
 174         /* Atheros AR5BBU12 with sflash firmware */
 175         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 176
 177         /* Atheros AR5BBU12 with sflash firmware */
 178         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 179         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 180
 181         /* Broadcom BCM2035 */
 182         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 183         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 184         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 185
 186         /* Broadcom BCM2045 */
 187         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 188         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 189
 190         /* IBM/Lenovo ThinkPad with Broadcom chip */
 191         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 192         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 193
 194         /* HP laptop with Broadcom chip */
 195         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 196
 197         /* Dell laptop with Broadcom chip */
 198         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 199
 200         /* Dell Wireless 370 and 410 devices */
 201         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 202         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 203
 204         /* Belkin F8T012 and F8T013 devices */
 205         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 206         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 207
 208         /* Asus WL-BTD202 device */
 209         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 210
 211         /* Kensington Bluetooth USB adapter */
 212         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 213
 214         /* RTX Telecom based adapters with buggy SCO support */
 215         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 216         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 217
 218         /* CONWISE Technology based adapters with buggy SCO support */
 219         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 220
 221         /* Digianswer devices */
 222         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 223         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 224
 225         /* CSR BlueCore Bluetooth Sniffer */
 226         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 227
 228         /* Frontline ComProbe Bluetooth Sniffer */
 229         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 230
 231         { }     /* Terminating entry */
 232 };
 233
 234 #define BTUSB_MAX_ISOC_FRAMES   10
 235
 236 #define BTUSB_INTR_RUNNING      0
 237 #define BTUSB_BULK_RUNNING      1
 238 #define BTUSB_ISOC_RUNNING      2
 239 #define BTUSB_SUSPENDING        3
 240 #define BTUSB_DID_ISO_RESUME    4
 241
 242 struct btusb_data {
 243         struct hci_dev       *hdev;
 244         struct usb_device    *udev;
 245         struct usb_interface *intf;
 246         struct usb_interface *isoc;
 247
 248         spinlock_t lock;
 249
 250         unsigned long flags;
 251
 252         struct work_struct work;
 253         struct work_struct waker;
 254
 255         struct usb_anchor tx_anchor;
 256         struct usb_anchor intr_anchor;
 257         struct usb_anchor bulk_anchor;
 258         struct usb_anchor isoc_anchor;
 259         struct usb_anchor deferred;
 260         int tx_in_flight;
 261         spinlock_t txlock;
 262
 263         struct usb_endpoint_descriptor *intr_ep;
 264         struct usb_endpoint_descriptor *bulk_tx_ep;
 265         struct usb_endpoint_descriptor *bulk_rx_ep;
 266         struct usb_endpoint_descriptor *isoc_tx_ep;
 267         struct usb_endpoint_descriptor *isoc_rx_ep;
 268
 269         __u8 cmdreq_type;
 270
 271         unsigned int sco_num;
 272         int isoc_altsetting;
 273         int suspend_count;
 274 };
 275
 276 static int inc_tx(struct btusb_data *data)
 277 {
 278         unsigned long flags;
 279         int rv;
 280
 281         spin_lock_irqsave(&data->txlock, flags);
 282         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 283         if (!rv)
 284                 data->tx_in_flight++;
 285         spin_unlock_irqrestore(&data->txlock, flags);
 286
 287         return rv;
 288 }
 289
 290 static void btusb_intr_complete(struct urb *urb)
 291 {
 292         struct hci_dev *hdev = urb->context;
 293         struct btusb_data *data = hdev->driver_data;
 294         int err;
 295
 296         BT_DBG("%s urb %p status %d count %d", hdev->name,
 297                                         urb, urb->status, urb->actual_length);
 298
 299         if (!test_bit(HCI_RUNNING, &hdev->flags))
 300                 return;
 301
 302         if (urb->status == 0) {
 303                 hdev->stat.byte_rx += urb->actual_length;
 304
 305                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 306                                                 urb->transfer_buffer,
 307                                                 urb->actual_length) < 0) {
 308                         BT_ERR("%s corrupted event packet", hdev->name);
 309                         hdev->stat.err_rx++;
 310                 }
 311         } else if (urb->status == -ENOENT) {
 312                 /* Avoid suspend failed when usb_kill_urb */
 313                 return;
 314         }
 315
 316         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 317                 return;
 318
 319         usb_mark_last_busy(data->udev);
 320         usb_anchor_urb(urb, &data->intr_anchor);
 321
 322         err = usb_submit_urb(urb, GFP_ATOMIC);
 323         if (err < 0) {
 324                 /* -EPERM: urb is being killed;
 325                  * -ENODEV: device got disconnected */
 326                 if (err != -EPERM && err != -ENODEV)
 327                         BT_ERR("%s urb %p failed to resubmit (%d)",
 328                                                 hdev->name, urb, -err);
 329                 usb_unanchor_urb(urb);
 330         }
 331 }
 332
 333 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 334 {
 335         struct btusb_data *data = hdev->driver_data;
 336         struct urb *urb;
 337         unsigned char *buf;
 338         unsigned int pipe;
 339         int err, size;
 340
 341         BT_DBG("%s", hdev->name);
 342
 343         if (!data->intr_ep)
 344                 return -ENODEV;
 345
 346         urb = usb_alloc_urb(0, mem_flags);
 347         if (!urb)
 348                 return -ENOMEM;
 349
 350         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 351
 352         buf = kmalloc(size, mem_flags);
 353         if (!buf) {
 354                 usb_free_urb(urb);
 355                 return -ENOMEM;
 356         }
 357
 358         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 359
 360         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 361                                                 btusb_intr_complete, hdev,
 362                                                 data->intr_ep->bInterval);
 363
 364         urb->transfer_flags |= URB_FREE_BUFFER;
 365
 366         usb_anchor_urb(urb, &data->intr_anchor);
 367
 368         err = usb_submit_urb(urb, mem_flags);
 369         if (err < 0) {
 370                 BT_ERR("%s urb %p submission failed (%d)",
 371                                                 hdev->name, urb, -err);
 372                 usb_unanchor_urb(urb);
 373         }
 374
 375         usb_free_urb(urb);
 376
 377         return err;
 378 }
 379
 380 static void btusb_bulk_complete(struct urb *urb)
 381 {
 382         struct hci_dev *hdev = urb->context;
 383         struct btusb_data *data = hdev->driver_data;
 384         int err;
 385
 386         BT_DBG("%s urb %p status %d count %d", hdev->name,
 387                                         urb, urb->status, urb->actual_length);
 388
 389         if (!test_bit(HCI_RUNNING, &hdev->flags))
 390                 return;
 391
 392         if (urb->status == 0) {
 393                 hdev->stat.byte_rx += urb->actual_length;
 394
 395                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 396                                                 urb->transfer_buffer,
 397                                                 urb->actual_length) < 0) {
 398                         BT_ERR("%s corrupted ACL packet", hdev->name);
 399                         hdev->stat.err_rx++;
 400                 }
 401         } else if (urb->status == -ENOENT) {
 402                 /* Avoid suspend failed when usb_kill_urb */
 403                 return;
 404         }
 405
 406         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 407                 return;
 408
 409         usb_anchor_urb(urb, &data->bulk_anchor);
 410         usb_mark_last_busy(data->udev);
 411
 412         err = usb_submit_urb(urb, GFP_ATOMIC);
 413         if (err < 0) {
 414                 /* -EPERM: urb is being killed;
 415                  * -ENODEV: device got disconnected */
 416                 if (err != -EPERM && err != -ENODEV)
 417                         BT_ERR("%s urb %p failed to resubmit (%d)",
 418                                                 hdev->name, urb, -err);
 419                 usb_unanchor_urb(urb);
 420         }
 421 }
 422
 423 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 424 {
 425         struct btusb_data *data = hdev->driver_data;
 426         struct urb *urb;
 427         unsigned char *buf;
 428         unsigned int pipe;
 429         int err, size = HCI_MAX_FRAME_SIZE;
 430
 431         BT_DBG("%s", hdev->name);
 432
 433         if (!data->bulk_rx_ep)
 434                 return -ENODEV;
 435
 436         urb = usb_alloc_urb(0, mem_flags);
 437         if (!urb)
 438                 return -ENOMEM;
 439
 440         buf = kmalloc(size, mem_flags);
 441         if (!buf) {
 442                 usb_free_urb(urb);
 443                 return -ENOMEM;
 444         }
 445
 446         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 447
 448         usb_fill_bulk_urb(urb, data->udev, pipe,
 449                                         buf, size, btusb_bulk_complete, hdev);
 450
 451         urb->transfer_flags |= URB_FREE_BUFFER;
 452
 453         usb_mark_last_busy(data->udev);
 454         usb_anchor_urb(urb, &data->bulk_anchor);
 455
 456         err = usb_submit_urb(urb, mem_flags);
 457         if (err < 0) {
 458                 BT_ERR("%s urb %p submission failed (%d)",
 459                                                 hdev->name, urb, -err);
 460                 usb_unanchor_urb(urb);
 461         }
 462
 463         usb_free_urb(urb);
 464
 465         return err;
 466 }
 467
 468 static void btusb_isoc_complete(struct urb *urb)
 469 {
 470         struct hci_dev *hdev = urb->context;
 471         struct btusb_data *data = hdev->driver_data;
 472         int i, err;
 473
 474         BT_DBG("%s urb %p status %d count %d", hdev->name,
 475                                         urb, urb->status, urb->actual_length);
 476
 477         if (!test_bit(HCI_RUNNING, &hdev->flags))
 478                 return;
 479
 480         if (urb->status == 0) {
 481                 for (i = 0; i < urb->number_of_packets; i++) {
 482                         unsigned int offset = urb->iso_frame_desc[i].offset;
 483                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 484
 485                         if (urb->iso_frame_desc[i].status)
 486                                 continue;
 487
 488                         hdev->stat.byte_rx += length;
 489
 490                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 491                                                 urb->transfer_buffer + offset,
 492                                                                 length) < 0) {
 493                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 494                                 hdev->stat.err_rx++;
 495                         }
 496                 }
 497         } else if (urb->status == -ENOENT) {
 498                 /* Avoid suspend failed when usb_kill_urb */
 499                 return;
 500         }
 501
 502         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 503                 return;
 504
 505         usb_anchor_urb(urb, &data->isoc_anchor);
 506
 507         err = usb_submit_urb(urb, GFP_ATOMIC);
 508         if (err < 0) {
 509                 /* -EPERM: urb is being killed;
 510                  * -ENODEV: device got disconnected */
 511                 if (err != -EPERM && err != -ENODEV)
 512                         BT_ERR("%s urb %p failed to resubmit (%d)",
 513                                                 hdev->name, urb, -err);
 514                 usb_unanchor_urb(urb);
 515         }
 516 }
 517
 518 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 519 {
 520         int i, offset = 0;
 521
 522         BT_DBG("len %d mtu %d", len, mtu);
 523
 524         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 525                                         i++, offset += mtu, len -= mtu) {
 526                 urb->iso_frame_desc[i].offset = offset;
 527                 urb->iso_frame_desc[i].length = mtu;
 528         }
 529
 530         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 531                 urb->iso_frame_desc[i].offset = offset;
 532                 urb->iso_frame_desc[i].length = len;
 533                 i++;
 534         }
 535
 536         urb->number_of_packets = i;
 537 }
 538
 539 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 540 {
 541         struct btusb_data *data = hdev->driver_data;
 542         struct urb *urb;
 543         unsigned char *buf;
 544         unsigned int pipe;
 545         int err, size;
 546
 547         BT_DBG("%s", hdev->name);
 548
 549         if (!data->isoc_rx_ep)
 550                 return -ENODEV;
 551
 552         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 553         if (!urb)
 554                 return -ENOMEM;
 555
 556         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 557                                                 BTUSB_MAX_ISOC_FRAMES;
 558
 559         buf = kmalloc(size, mem_flags);
 560         if (!buf) {
 561                 usb_free_urb(urb);
 562                 return -ENOMEM;
 563         }
 564
 565         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 566
 567         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 568                                 hdev, data->isoc_rx_ep->bInterval);
 569
 570         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 571
 572         __fill_isoc_descriptor(urb, size,
 573                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 574
 575         usb_anchor_urb(urb, &data->isoc_anchor);
 576
 577         err = usb_submit_urb(urb, mem_flags);
 578         if (err < 0) {
 579                 BT_ERR("%s urb %p submission failed (%d)",
 580                                                 hdev->name, urb, -err);
 581                 usb_unanchor_urb(urb);
 582         }
 583
 584         usb_free_urb(urb);
 585
 586         return err;
 587 }
 588
 589 static void btusb_tx_complete(struct urb *urb)
 590 {
 591         struct sk_buff *skb = urb->context;
 592         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 593         struct btusb_data *data = hdev->driver_data;
 594
 595         BT_DBG("%s urb %p status %d count %d", hdev->name,
 596                                         urb, urb->status, urb->actual_length);
 597
 598         if (!test_bit(HCI_RUNNING, &hdev->flags))
 599                 goto done;
 600
 601         if (!urb->status)
 602                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 603         else
 604                 hdev->stat.err_tx++;
 605
 606 done:
 607         spin_lock(&data->txlock);
 608         data->tx_in_flight--;
 609         spin_unlock(&data->txlock);
 610
 611         kfree(urb->setup_packet);
 612
 613         kfree_skb(skb);
 614 }
 615
 616 static void btusb_isoc_tx_complete(struct urb *urb)
 617 {
 618         struct sk_buff *skb = urb->context;
 619         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 620
 621         BT_DBG("%s urb %p status %d count %d", hdev->name,
 622                                         urb, urb->status, urb->actual_length);
 623
 624         if (!test_bit(HCI_RUNNING, &hdev->flags))
 625                 goto done;
 626
 627         if (!urb->status)
 628                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 629         else
 630                 hdev->stat.err_tx++;
 631
 632 done:
 633         kfree(urb->setup_packet);
 634
 635         kfree_skb(skb);
 636 }
 637
 638 static int btusb_open(struct hci_dev *hdev)
 639 {
 640         struct btusb_data *data = hdev->driver_data;
 641         int err;
 642
 643         BT_DBG("%s", hdev->name);
 644
 645         err = usb_autopm_get_interface(data->intf);
 646         if (err < 0)
 647                 return err;
 648
 649         data->intf->needs_remote_wakeup = 1;
 650
 651         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 652                 goto done;
 653
 654         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 655                 goto done;
 656
 657         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 658         if (err < 0)
 659                 goto failed;
 660
 661         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 662         if (err < 0) {
 663                 usb_kill_anchored_urbs(&data->intr_anchor);
 664                 goto failed;
 665         }
 666
 667         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 668         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 669
 670 done:
 671         usb_autopm_put_interface(data->intf);
 672         return 0;
 673
 674 failed:
 675         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 676         clear_bit(HCI_RUNNING, &hdev->flags);
 677         usb_autopm_put_interface(data->intf);
 678         return err;
 679 }
 680
 681 static void btusb_stop_traffic(struct btusb_data *data)
 682 {
 683         usb_kill_anchored_urbs(&data->intr_anchor);
 684         usb_kill_anchored_urbs(&data->bulk_anchor);
 685         usb_kill_anchored_urbs(&data->isoc_anchor);
 686 }
 687
 688 static int btusb_close(struct hci_dev *hdev)
 689 {
 690         struct btusb_data *data = hdev->driver_data;
 691         int err;
 692
 693         BT_DBG("%s", hdev->name);
 694
 695         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 696                 return 0;
 697
 698         cancel_work_sync(&data->work);
 699         cancel_work_sync(&data->waker);
 700
 701         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 702         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 703         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 704
 705         btusb_stop_traffic(data);
 706         err = usb_autopm_get_interface(data->intf);
 707         if (err < 0)
 708                 goto failed;
 709
 710         data->intf->needs_remote_wakeup = 0;
 711         usb_autopm_put_interface(data->intf);
 712
 713 failed:
 714         usb_scuttle_anchored_urbs(&data->deferred);
 715         return 0;
 716 }
 717
 718 static int btusb_flush(struct hci_dev *hdev)
 719 {
 720         struct btusb_data *data = hdev->driver_data;
 721
 722         BT_DBG("%s", hdev->name);
 723
 724         usb_kill_anchored_urbs(&data->tx_anchor);
 725
 726         return 0;
 727 }
 728
 729 static int btusb_send_frame(struct sk_buff *skb)
 730 {
 731         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 732         struct btusb_data *data = hdev->driver_data;
 733         struct usb_ctrlrequest *dr;
 734         struct urb *urb;
 735         unsigned int pipe;
 736         int err;
 737
 738         BT_DBG("%s", hdev->name);
 739
 740         if (!test_bit(HCI_RUNNING, &hdev->flags))
 741                 return -EBUSY;
 742
 743         switch (bt_cb(skb)->pkt_type) {
 744         case HCI_COMMAND_PKT:
 745                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 746                 if (!urb)
 747                         return -ENOMEM;
 748
 749                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 750                 if (!dr) {
 751                         usb_free_urb(urb);
 752                         return -ENOMEM;
 753                 }
 754
 755                 dr->bRequestType = data->cmdreq_type;
 756                 dr->bRequest     = 0;
 757                 dr->wIndex       = 0;
 758                 dr->wValue       = 0;
 759                 dr->wLength      = __cpu_to_le16(skb->len);
 760
 761                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 762
 763                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 764                                 skb->data, skb->len, btusb_tx_complete, skb);
 765
 766                 hdev->stat.cmd_tx++;
 767                 break;
 768
 769         case HCI_ACLDATA_PKT:
 770                 if (!data->bulk_tx_ep)
 771                         return -ENODEV;
 772
 773                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 774                 if (!urb)
 775                         return -ENOMEM;
 776
 777                 pipe = usb_sndbulkpipe(data->udev,
 778                                         data->bulk_tx_ep->bEndpointAddress);
 779
 780                 usb_fill_bulk_urb(urb, data->udev, pipe,
 781                                 skb->data, skb->len, btusb_tx_complete, skb);
 782
 783                 hdev->stat.acl_tx++;
 784                 break;
 785
 786         case HCI_SCODATA_PKT:
 787                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 788                         return -ENODEV;
 789
 790                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 791                 if (!urb)
 792                         return -ENOMEM;
 793
 794                 pipe = usb_sndisocpipe(data->udev,
 795                                         data->isoc_tx_ep->bEndpointAddress);
 796
 797                 usb_fill_int_urb(urb, data->udev, pipe,
 798                                 skb->data, skb->len, btusb_isoc_tx_complete,
 799                                 skb, data->isoc_tx_ep->bInterval);
 800
 801                 urb->transfer_flags  = URB_ISO_ASAP;
 802
 803                 __fill_isoc_descriptor(urb, skb->len,
 804                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 805
 806                 hdev->stat.sco_tx++;
 807                 goto skip_waking;
 808
 809         default:
 810                 return -EILSEQ;
 811         }
 812
 813         err = inc_tx(data);
 814         if (err) {
 815                 usb_anchor_urb(urb, &data->deferred);
 816                 schedule_work(&data->waker);
 817                 err = 0;
 818                 goto done;
 819         }
 820
 821 skip_waking:
 822         usb_anchor_urb(urb, &data->tx_anchor);
 823
 824         err = usb_submit_urb(urb, GFP_ATOMIC);
 825         if (err < 0) {
 826                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 827                 kfree(urb->setup_packet);
 828                 usb_unanchor_urb(urb);
 829         } else {
 830                 usb_mark_last_busy(data->udev);
 831         }
 832
 833 done:
 834         usb_free_urb(urb);
 835         return err;
 836 }
 837
 838 static void btusb_destruct(struct hci_dev *hdev)
 839 {
 840         struct btusb_data *data = hdev->driver_data;
 841
 842         BT_DBG("%s", hdev->name);
 843
 844         kfree(data);
 845 }
 846
 847 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 848 {
 849         struct btusb_data *data = hdev->driver_data;
 850
 851         BT_DBG("%s evt %d", hdev->name, evt);
 852
 853         if (hdev->conn_hash.sco_num != data->sco_num) {
 854                 data->sco_num = hdev->conn_hash.sco_num;
 855                 schedule_work(&data->work);
 856         }
 857 }
 858
 859 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 860 {
 861         struct btusb_data *data = hdev->driver_data;
 862         struct usb_interface *intf = data->isoc;
 863         struct usb_endpoint_descriptor *ep_desc;
 864         int i, err;
 865
 866         if (!data->isoc)
 867                 return -ENODEV;
 868
 869         err = usb_set_interface(data->udev, 1, altsetting);
 870         if (err < 0) {
 871                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 872                 return err;
 873         }
 874
 875         data->isoc_altsetting = altsetting;
 876
 877         data->isoc_tx_ep = NULL;
 878         data->isoc_rx_ep = NULL;
 879
 880         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 881                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 882
 883                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 884                         data->isoc_tx_ep = ep_desc;
 885                         continue;
 886                 }
 887
 888                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 889                         data->isoc_rx_ep = ep_desc;
 890                         continue;
 891                 }
 892         }
 893
 894         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 895                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 896                 return -ENODEV;
 897         }
 898
 899         return 0;
 900 }
 901
 902 static void btusb_work(struct work_struct *work)
 903 {
 904         struct btusb_data *data = container_of(work, struct btusb_data, work);
 905         struct hci_dev *hdev = data->hdev;
 906         int err;
 907
 908         if (hdev->conn_hash.sco_num > 0) {
 909                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 910                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 911                         if (err < 0) {
 912                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 913                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 914                                 return;
 915                         }
 916
 917                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 918                 }
 919                 if (data->isoc_altsetting != 2) {
 920                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 921                         usb_kill_anchored_urbs(&data->isoc_anchor);
 922
 923                         if (__set_isoc_interface(hdev, 2) < 0)
 924                                 return;
 925                 }
 926
 927                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 928                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 929                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 930                         else
 931                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 932                 }
 933         } else {
 934                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 935                 usb_kill_anchored_urbs(&data->isoc_anchor);
 936
 937                 __set_isoc_interface(hdev, 0);
 938                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 939                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 940         }
 941 }
 942
 943 static void btusb_waker(struct work_struct *work)
 944 {
 945         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 946         int err;
 947
 948         err = usb_autopm_get_interface(data->intf);
 949         if (err < 0)
 950                 return;
 951
 952         usb_autopm_put_interface(data->intf);
 953 }
 954
 955 static int btusb_probe(struct usb_interface *intf,
 956                                 const struct usb_device_id *id)
 957 {
 958         struct usb_endpoint_descriptor *ep_desc;
 959         struct btusb_data *data;
 960         struct hci_dev *hdev;
 961         int i, err;
 962
 963         BT_DBG("intf %p id %p", intf, id);
 964
 965         /* interface numbers are hardcoded in the spec */
 966         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 967                 return -ENODEV;
 968
 969         if (!id->driver_info) {
 970                 const struct usb_device_id *match;
 971                 match = usb_match_id(intf, blacklist_table);
 972                 if (match)
 973                         id = match;
 974         }
 975
 976         if (id->driver_info == BTUSB_IGNORE)
 977                 return -ENODEV;
 978
 979         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 980                 return -ENODEV;
 981
 982         if (ignore_csr && id->driver_info & BTUSB_CSR)
 983                 return -ENODEV;
 984
 985         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 986                 return -ENODEV;
 987
 988         if (id->driver_info & BTUSB_ATH3012) {
 989                 struct usb_device *udev = interface_to_usbdev(intf);
 990
 991                 /* Old firmware would otherwise let ath3k driver load
 992                  * patch and sysconfig files */
 993                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 994                         return -ENODEV;
 995         }
 996
 997         data = kzalloc(sizeof(*data), GFP_KERNEL);
 998         if (!data)
 999                 return -ENOMEM;
1000
1001         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1002                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1003
1004                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
1005                         data->intr_ep = ep_desc;
1006                         continue;
1007                 }
1008
1009                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
1010                         data->bulk_tx_ep = ep_desc;
1011                         continue;
1012                 }
1013
1014                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
1015                         data->bulk_rx_ep = ep_desc;
1016                         continue;
1017                 }
1018         }
1019
1020         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
1021                 kfree(data);
1022                 return -ENODEV;
1023         }
1024
1025         data->cmdreq_type = USB_TYPE_CLASS;
1026
1027         data->udev = interface_to_usbdev(intf);
1028         data->intf = intf;
1029
1030         spin_lock_init(&data->lock);
1031
1032         INIT_WORK(&data->work, btusb_work);
1033         INIT_WORK(&data->waker, btusb_waker);
1034         spin_lock_init(&data->txlock);
1035
1036         init_usb_anchor(&data->tx_anchor);
1037         init_usb_anchor(&data->intr_anchor);
1038         init_usb_anchor(&data->bulk_anchor);
1039         init_usb_anchor(&data->isoc_anchor);
1040         init_usb_anchor(&data->deferred);
1041
1042         hdev = hci_alloc_dev();
1043         if (!hdev) {
1044                 kfree(data);
1045                 return -ENOMEM;
1046         }
1047
1048         hdev->bus = HCI_USB;
1049         hdev->driver_data = data;
1050
1051         data->hdev = hdev;
1052
1053         SET_HCIDEV_DEV(hdev, &intf->dev);
1054
1055         hdev->open     = btusb_open;
1056         hdev->close    = btusb_close;
1057         hdev->flush    = btusb_flush;
1058         hdev->send     = btusb_send_frame;
1059         hdev->destruct = btusb_destruct;
1060         hdev->notify   = btusb_notify;
1061
1062         hdev->owner = THIS_MODULE;
1063
1064         /* Interface numbers are hardcoded in the specification */
1065         data->isoc = usb_ifnum_to_if(data->udev, 1);
1066
1067         if (!reset)
1068                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1069
1070         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1071                 if (!disable_scofix)
1072                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1073         }
1074
1075         if (id->driver_info & BTUSB_BROKEN_ISOC)
1076                 data->isoc = NULL;
1077
1078         if (id->driver_info & BTUSB_DIGIANSWER) {
1079                 data->cmdreq_type = USB_TYPE_VENDOR;
1080                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1081         }
1082
1083         if (id->driver_info & BTUSB_CSR) {
1084                 struct usb_device *udev = data->udev;
1085
1086                 /* Old firmware would otherwise execute USB reset */
1087                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1088                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1089         }
1090
1091         if (id->driver_info & BTUSB_SNIFFER) {
1092                 struct usb_device *udev = data->udev;
1093
1094                 /* New sniffer firmware has crippled HCI interface */
1095                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1096                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1097
1098                 data->isoc = NULL;
1099         }
1100
1101         if (id->driver_info & BTUSB_BCM92035) {
1102                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1103                 struct sk_buff *skb;
1104
1105                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1106                 if (skb) {
1107                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1108                         skb_queue_tail(&hdev->driver_init, skb);
1109                 }
1110         }
1111
1112         if (data->isoc) {
1113                 err = usb_driver_claim_interface(&btusb_driver,
1114                                                         data->isoc, data);
1115                 if (err < 0) {
1116                         hci_free_dev(hdev);
1117                         kfree(data);
1118                         return err;
1119                 }
1120         }
1121
1122         err = hci_register_dev(hdev);
1123         if (err < 0) {
1124                 hci_free_dev(hdev);
1125                 kfree(data);
1126                 return err;
1127         }
1128
1129         usb_set_intfdata(intf, data);
1130
1131         return 0;
1132 }
1133
1134 static void btusb_disconnect(struct usb_interface *intf)
1135 {
1136         struct btusb_data *data = usb_get_intfdata(intf);
1137         struct hci_dev *hdev;
1138
1139         BT_DBG("intf %p", intf);
1140
1141         if (!data)
1142                 return;
1143
1144         hdev = data->hdev;
1145
1146         __hci_dev_hold(hdev);
1147
1148         usb_set_intfdata(data->intf, NULL);
1149
1150         if (data->isoc)
1151                 usb_set_intfdata(data->isoc, NULL);
1152
1153         hci_unregister_dev(hdev);
1154
1155         if (intf == data->isoc)
1156                 usb_driver_release_interface(&btusb_driver, data->intf);
1157         else if (data->isoc)
1158                 usb_driver_release_interface(&btusb_driver, data->isoc);
1159
1160         __hci_dev_put(hdev);
1161
1162         hci_free_dev(hdev);
1163 }
1164
1165 #ifdef CONFIG_PM
1166 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1167 {
1168         struct btusb_data *data = usb_get_intfdata(intf);
1169
1170         BT_DBG("intf %p", intf);
1171
1172         if (data->suspend_count++)
1173                 return 0;
1174
1175         spin_lock_irq(&data->txlock);
1176         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1177                 set_bit(BTUSB_SUSPENDING, &data->flags);
1178                 spin_unlock_irq(&data->txlock);
1179         } else {
1180                 spin_unlock_irq(&data->txlock);
1181                 data->suspend_count--;
1182                 return -EBUSY;
1183         }
1184
1185         cancel_work_sync(&data->work);
1186
1187         btusb_stop_traffic(data);
1188         usb_kill_anchored_urbs(&data->tx_anchor);
1189
1190         return 0;
1191 }
1192
1193 static void play_deferred(struct btusb_data *data)
1194 {
1195         struct urb *urb;
1196         int err;
1197
1198         while ((urb = usb_get_from_anchor(&data->deferred))) {
1199                 err = usb_submit_urb(urb, GFP_ATOMIC);
1200                 if (err < 0)
1201                         break;
1202
1203                 data->tx_in_flight++;
1204         }
1205         usb_scuttle_anchored_urbs(&data->deferred);
1206 }
1207
1208 static int btusb_resume(struct usb_interface *intf)
1209 {
1210         struct btusb_data *data = usb_get_intfdata(intf);
1211         struct hci_dev *hdev = data->hdev;
1212         int err = 0;
1213
1214         BT_DBG("intf %p", intf);
1215
1216         if (--data->suspend_count)
1217                 return 0;
1218
1219         if (!test_bit(HCI_RUNNING, &hdev->flags))
1220                 goto done;
1221
1222         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1223                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1224                 if (err < 0) {
1225                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1226                         goto failed;
1227                 }
1228         }
1229
1230         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1231                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1232                 if (err < 0) {
1233                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1234                         goto failed;
1235                 }
1236
1237                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1238         }
1239
1240         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1241                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1242                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1243                 else
1244                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1245         }
1246
1247         spin_lock_irq(&data->txlock);
1248         play_deferred(data);
1249         clear_bit(BTUSB_SUSPENDING, &data->flags);
1250         spin_unlock_irq(&data->txlock);
1251         schedule_work(&data->work);
1252
1253         return 0;
1254
1255 failed:
1256         usb_scuttle_anchored_urbs(&data->deferred);
1257 done:
1258         spin_lock_irq(&data->txlock);
1259         clear_bit(BTUSB_SUSPENDING, &data->flags);
1260         spin_unlock_irq(&data->txlock);
1261
1262         return err;
1263 }
1264 #endif
1265
1266 static struct usb_driver btusb_driver = {
1267         .name           = "btusb",
1268         .probe          = btusb_probe,
1269         .disconnect     = btusb_disconnect,
1270 #ifdef CONFIG_PM
1271         .suspend        = btusb_suspend,
1272         .resume         = btusb_resume,
1273 #endif
1274         .id_table       = btusb_table,
1275         .supports_autosuspend = 1,
1276 };
1277
1278 static int __init btusb_init(void)
1279 {
1280         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1281
1282         return usb_register(&btusb_driver);
1283 }
1284
1285 static void __exit btusb_exit(void)
1286 {
1287         usb_deregister(&btusb_driver);
1288 }
1289
1290 module_init(btusb_init);
1291 module_exit(btusb_exit);
1292
1293 module_param(ignore_dga, bool, 0644);
1294 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1295
1296 module_param(ignore_csr, bool, 0644);
1297 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1298
1299 module_param(ignore_sniffer, bool, 0644);
1300 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1301
1302 module_param(disable_scofix, bool, 0644);
1303 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1304
1305 module_param(force_scofix, bool, 0644);
1306 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1307
1308 module_param(reset, bool, 0644);
1309 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1310
1311 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1312 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1313 MODULE_VERSION(VERSION);
1314 MODULE_LICENSE("GPL");