drivers/bluetooth/btusb.c

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