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