drivers/bluetooth/btusb.c

   1 /*
   2  *
   3  *  Generic Bluetooth USB driver
   4  *
   5  *  Copyright (C) 2005-2008  Marcel Holtmann <[email protected]>
   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/module.h>
  25 #include <linux/usb.h>
  26
  27 #include <net/bluetooth/bluetooth.h>
  28 #include <net/bluetooth/hci_core.h>
  29
  30 #define VERSION "0.6"
  31
  32 static bool ignore_dga;
  33 static bool ignore_csr;
  34 static bool ignore_sniffer;
  35 static bool disable_scofix;
  36 static bool force_scofix;
  37
  38 static bool reset = 1;
  39
  40 static struct usb_driver btusb_driver;
  41
  42 #define BTUSB_IGNORE            0x01
  43 #define BTUSB_DIGIANSWER        0x02
  44 #define BTUSB_CSR               0x04
  45 #define BTUSB_SNIFFER           0x08
  46 #define BTUSB_BCM92035          0x10
  47 #define BTUSB_BROKEN_ISOC       0x20
  48 #define BTUSB_WRONG_SCO_MTU     0x40
  49 #define BTUSB_ATH3012           0x80
  50
  51 static struct usb_device_id btusb_table[] = {
  52         /* Generic Bluetooth USB device */
  53         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  54
  55         /* Apple-specific (Broadcom) devices */
  56         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01) },
  57
  58         /* Broadcom SoftSailing reporting vendor specific */
  59         { USB_DEVICE(0x0a5c, 0x21e1) },
  60
  61         /* Apple MacBookPro 7,1 */
  62         { USB_DEVICE(0x05ac, 0x8213) },
  63
  64         /* Apple iMac11,1 */
  65         { USB_DEVICE(0x05ac, 0x8215) },
  66
  67         /* Apple MacBookPro6,2 */
  68         { USB_DEVICE(0x05ac, 0x8218) },
  69
  70         /* Apple MacBookAir3,1, MacBookAir3,2 */
  71         { USB_DEVICE(0x05ac, 0x821b) },
  72
  73         /* Apple MacBookAir4,1 */
  74         { USB_DEVICE(0x05ac, 0x821f) },
  75
  76         /* Apple MacBookPro8,2 */
  77         { USB_DEVICE(0x05ac, 0x821a) },
  78
  79         /* Apple MacMini5,1 */
  80         { USB_DEVICE(0x05ac, 0x8281) },
  81
  82         /* AVM BlueFRITZ! USB v2.0 */
  83         { USB_DEVICE(0x057c, 0x3800) },
  84
  85         /* Bluetooth Ultraport Module from IBM */
  86         { USB_DEVICE(0x04bf, 0x030a) },
  87
  88         /* ALPS Modules with non-standard id */
  89         { USB_DEVICE(0x044e, 0x3001) },
  90         { USB_DEVICE(0x044e, 0x3002) },
  91
  92         /* Ericsson with non-standard id */
  93         { USB_DEVICE(0x0bdb, 0x1002) },
  94
  95         /* Canyon CN-BTU1 with HID interfaces */
  96         { USB_DEVICE(0x0c10, 0x0000) },
  97
  98         /* Broadcom BCM20702A0 */
  99         { USB_DEVICE(0x0b05, 0x17b5) },
 100         { USB_DEVICE(0x04ca, 0x2003) },
 101         { USB_DEVICE(0x0489, 0xe042) },
 102         { USB_DEVICE(0x413c, 0x8197) },
 103
 104         /* Foxconn - Hon Hai */
 105         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01) },
 106
 107         /*Broadcom devices with vendor specific id */
 108         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 109
 110         { }     /* Terminating entry */
 111 };
 112
 113 MODULE_DEVICE_TABLE(usb, btusb_table);
 114
 115 static struct usb_device_id blacklist_table[] = {
 116         /* CSR BlueCore devices */
 117         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 118
 119         /* Broadcom BCM2033 without firmware */
 120         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 121
 122         /* Atheros 3011 with sflash firmware */
 123         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 124         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 125         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 126         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 127         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 128         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 129
 130         /* Atheros AR9285 Malbec with sflash firmware */
 131         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 132
 133         /* Atheros 3012 with sflash firmware */
 134         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 135         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 136         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 137         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 147
 148         /* Atheros AR5BBU12 with sflash firmware */
 149         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 150
 151         /* Atheros AR5BBU12 with sflash firmware */
 152         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 154
 155         /* Broadcom BCM2035 */
 156         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 157         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 158         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 159
 160         /* Broadcom BCM2045 */
 161         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 162         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 163
 164         /* IBM/Lenovo ThinkPad with Broadcom chip */
 165         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 166         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 167
 168         /* HP laptop with Broadcom chip */
 169         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 170
 171         /* Dell laptop with Broadcom chip */
 172         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 173
 174         /* Dell Wireless 370 and 410 devices */
 175         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 176         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 177
 178         /* Belkin F8T012 and F8T013 devices */
 179         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 180         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 181
 182         /* Asus WL-BTD202 device */
 183         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 184
 185         /* Kensington Bluetooth USB adapter */
 186         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 187
 188         /* RTX Telecom based adapters with buggy SCO support */
 189         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 190         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 191
 192         /* CONWISE Technology based adapters with buggy SCO support */
 193         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 194
 195         /* Digianswer devices */
 196         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 197         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 198
 199         /* CSR BlueCore Bluetooth Sniffer */
 200         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 201
 202         /* Frontline ComProbe Bluetooth Sniffer */
 203         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 204
 205         { }     /* Terminating entry */
 206 };
 207
 208 #define BTUSB_MAX_ISOC_FRAMES   10
 209
 210 #define BTUSB_INTR_RUNNING      0
 211 #define BTUSB_BULK_RUNNING      1
 212 #define BTUSB_ISOC_RUNNING      2
 213 #define BTUSB_SUSPENDING        3
 214 #define BTUSB_DID_ISO_RESUME    4
 215
 216 struct btusb_data {
 217         struct hci_dev       *hdev;
 218         struct usb_device    *udev;
 219         struct usb_interface *intf;
 220         struct usb_interface *isoc;
 221
 222         spinlock_t lock;
 223
 224         unsigned long flags;
 225
 226         struct work_struct work;
 227         struct work_struct waker;
 228
 229         struct usb_anchor tx_anchor;
 230         struct usb_anchor intr_anchor;
 231         struct usb_anchor bulk_anchor;
 232         struct usb_anchor isoc_anchor;
 233         struct usb_anchor deferred;
 234         int tx_in_flight;
 235         spinlock_t txlock;
 236
 237         struct usb_endpoint_descriptor *intr_ep;
 238         struct usb_endpoint_descriptor *bulk_tx_ep;
 239         struct usb_endpoint_descriptor *bulk_rx_ep;
 240         struct usb_endpoint_descriptor *isoc_tx_ep;
 241         struct usb_endpoint_descriptor *isoc_rx_ep;
 242
 243         __u8 cmdreq_type;
 244
 245         unsigned int sco_num;
 246         int isoc_altsetting;
 247         int suspend_count;
 248 };
 249
 250 static int inc_tx(struct btusb_data *data)
 251 {
 252         unsigned long flags;
 253         int rv;
 254
 255         spin_lock_irqsave(&data->txlock, flags);
 256         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 257         if (!rv)
 258                 data->tx_in_flight++;
 259         spin_unlock_irqrestore(&data->txlock, flags);
 260
 261         return rv;
 262 }
 263
 264 static void btusb_intr_complete(struct urb *urb)
 265 {
 266         struct hci_dev *hdev = urb->context;
 267         struct btusb_data *data = hci_get_drvdata(hdev);
 268         int err;
 269
 270         BT_DBG("%s urb %p status %d count %d", hdev->name,
 271                                         urb, urb->status, urb->actual_length);
 272
 273         if (!test_bit(HCI_RUNNING, &hdev->flags))
 274                 return;
 275
 276         if (urb->status == 0) {
 277                 hdev->stat.byte_rx += urb->actual_length;
 278
 279                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 280                                                 urb->transfer_buffer,
 281                                                 urb->actual_length) < 0) {
 282                         BT_ERR("%s corrupted event packet", hdev->name);
 283                         hdev->stat.err_rx++;
 284                 }
 285         }
 286
 287         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 288                 return;
 289
 290         usb_mark_last_busy(data->udev);
 291         usb_anchor_urb(urb, &data->intr_anchor);
 292
 293         err = usb_submit_urb(urb, GFP_ATOMIC);
 294         if (err < 0) {
 295                 /* -EPERM: urb is being killed;
 296                  * -ENODEV: device got disconnected */
 297                 if (err != -EPERM && err != -ENODEV)
 298                         BT_ERR("%s urb %p failed to resubmit (%d)",
 299                                                 hdev->name, urb, -err);
 300                 usb_unanchor_urb(urb);
 301         }
 302 }
 303
 304 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 305 {
 306         struct btusb_data *data = hci_get_drvdata(hdev);
 307         struct urb *urb;
 308         unsigned char *buf;
 309         unsigned int pipe;
 310         int err, size;
 311
 312         BT_DBG("%s", hdev->name);
 313
 314         if (!data->intr_ep)
 315                 return -ENODEV;
 316
 317         urb = usb_alloc_urb(0, mem_flags);
 318         if (!urb)
 319                 return -ENOMEM;
 320
 321         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 322
 323         buf = kmalloc(size, mem_flags);
 324         if (!buf) {
 325                 usb_free_urb(urb);
 326                 return -ENOMEM;
 327         }
 328
 329         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 330
 331         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 332                                                 btusb_intr_complete, hdev,
 333                                                 data->intr_ep->bInterval);
 334
 335         urb->transfer_flags |= URB_FREE_BUFFER;
 336
 337         usb_anchor_urb(urb, &data->intr_anchor);
 338
 339         err = usb_submit_urb(urb, mem_flags);
 340         if (err < 0) {
 341                 if (err != -EPERM && err != -ENODEV)
 342                         BT_ERR("%s urb %p submission failed (%d)",
 343                                                 hdev->name, urb, -err);
 344                 usb_unanchor_urb(urb);
 345         }
 346
 347         usb_free_urb(urb);
 348
 349         return err;
 350 }
 351
 352 static void btusb_bulk_complete(struct urb *urb)
 353 {
 354         struct hci_dev *hdev = urb->context;
 355         struct btusb_data *data = hci_get_drvdata(hdev);
 356         int err;
 357
 358         BT_DBG("%s urb %p status %d count %d", hdev->name,
 359                                         urb, urb->status, urb->actual_length);
 360
 361         if (!test_bit(HCI_RUNNING, &hdev->flags))
 362                 return;
 363
 364         if (urb->status == 0) {
 365                 hdev->stat.byte_rx += urb->actual_length;
 366
 367                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 368                                                 urb->transfer_buffer,
 369                                                 urb->actual_length) < 0) {
 370                         BT_ERR("%s corrupted ACL packet", hdev->name);
 371                         hdev->stat.err_rx++;
 372                 }
 373         }
 374
 375         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 376                 return;
 377
 378         usb_anchor_urb(urb, &data->bulk_anchor);
 379         usb_mark_last_busy(data->udev);
 380
 381         err = usb_submit_urb(urb, GFP_ATOMIC);
 382         if (err < 0) {
 383                 /* -EPERM: urb is being killed;
 384                  * -ENODEV: device got disconnected */
 385                 if (err != -EPERM && err != -ENODEV)
 386                         BT_ERR("%s urb %p failed to resubmit (%d)",
 387                                                 hdev->name, urb, -err);
 388                 usb_unanchor_urb(urb);
 389         }
 390 }
 391
 392 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 393 {
 394         struct btusb_data *data = hci_get_drvdata(hdev);
 395         struct urb *urb;
 396         unsigned char *buf;
 397         unsigned int pipe;
 398         int err, size = HCI_MAX_FRAME_SIZE;
 399
 400         BT_DBG("%s", hdev->name);
 401
 402         if (!data->bulk_rx_ep)
 403                 return -ENODEV;
 404
 405         urb = usb_alloc_urb(0, mem_flags);
 406         if (!urb)
 407                 return -ENOMEM;
 408
 409         buf = kmalloc(size, mem_flags);
 410         if (!buf) {
 411                 usb_free_urb(urb);
 412                 return -ENOMEM;
 413         }
 414
 415         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 416
 417         usb_fill_bulk_urb(urb, data->udev, pipe,
 418                                         buf, size, btusb_bulk_complete, hdev);
 419
 420         urb->transfer_flags |= URB_FREE_BUFFER;
 421
 422         usb_mark_last_busy(data->udev);
 423         usb_anchor_urb(urb, &data->bulk_anchor);
 424
 425         err = usb_submit_urb(urb, mem_flags);
 426         if (err < 0) {
 427                 if (err != -EPERM && err != -ENODEV)
 428                         BT_ERR("%s urb %p submission failed (%d)",
 429                                                 hdev->name, urb, -err);
 430                 usb_unanchor_urb(urb);
 431         }
 432
 433         usb_free_urb(urb);
 434
 435         return err;
 436 }
 437
 438 static void btusb_isoc_complete(struct urb *urb)
 439 {
 440         struct hci_dev *hdev = urb->context;
 441         struct btusb_data *data = hci_get_drvdata(hdev);
 442         int i, err;
 443
 444         BT_DBG("%s urb %p status %d count %d", hdev->name,
 445                                         urb, urb->status, urb->actual_length);
 446
 447         if (!test_bit(HCI_RUNNING, &hdev->flags))
 448                 return;
 449
 450         if (urb->status == 0) {
 451                 for (i = 0; i < urb->number_of_packets; i++) {
 452                         unsigned int offset = urb->iso_frame_desc[i].offset;
 453                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 454
 455                         if (urb->iso_frame_desc[i].status)
 456                                 continue;
 457
 458                         hdev->stat.byte_rx += length;
 459
 460                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 461                                                 urb->transfer_buffer + offset,
 462                                                                 length) < 0) {
 463                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 464                                 hdev->stat.err_rx++;
 465                         }
 466                 }
 467         }
 468
 469         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 470                 return;
 471
 472         usb_anchor_urb(urb, &data->isoc_anchor);
 473
 474         err = usb_submit_urb(urb, GFP_ATOMIC);
 475         if (err < 0) {
 476                 /* -EPERM: urb is being killed;
 477                  * -ENODEV: device got disconnected */
 478                 if (err != -EPERM && err != -ENODEV)
 479                         BT_ERR("%s urb %p failed to resubmit (%d)",
 480                                                 hdev->name, urb, -err);
 481                 usb_unanchor_urb(urb);
 482         }
 483 }
 484
 485 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 486 {
 487         int i, offset = 0;
 488
 489         BT_DBG("len %d mtu %d", len, mtu);
 490
 491         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 492                                         i++, offset += mtu, len -= mtu) {
 493                 urb->iso_frame_desc[i].offset = offset;
 494                 urb->iso_frame_desc[i].length = mtu;
 495         }
 496
 497         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 498                 urb->iso_frame_desc[i].offset = offset;
 499                 urb->iso_frame_desc[i].length = len;
 500                 i++;
 501         }
 502
 503         urb->number_of_packets = i;
 504 }
 505
 506 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 507 {
 508         struct btusb_data *data = hci_get_drvdata(hdev);
 509         struct urb *urb;
 510         unsigned char *buf;
 511         unsigned int pipe;
 512         int err, size;
 513
 514         BT_DBG("%s", hdev->name);
 515
 516         if (!data->isoc_rx_ep)
 517                 return -ENODEV;
 518
 519         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 520         if (!urb)
 521                 return -ENOMEM;
 522
 523         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 524                                                 BTUSB_MAX_ISOC_FRAMES;
 525
 526         buf = kmalloc(size, mem_flags);
 527         if (!buf) {
 528                 usb_free_urb(urb);
 529                 return -ENOMEM;
 530         }
 531
 532         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 533
 534         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 535                                 hdev, data->isoc_rx_ep->bInterval);
 536
 537         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 538
 539         __fill_isoc_descriptor(urb, size,
 540                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 541
 542         usb_anchor_urb(urb, &data->isoc_anchor);
 543
 544         err = usb_submit_urb(urb, mem_flags);
 545         if (err < 0) {
 546                 if (err != -EPERM && err != -ENODEV)
 547                         BT_ERR("%s urb %p submission failed (%d)",
 548                                                 hdev->name, urb, -err);
 549                 usb_unanchor_urb(urb);
 550         }
 551
 552         usb_free_urb(urb);
 553
 554         return err;
 555 }
 556
 557 static void btusb_tx_complete(struct urb *urb)
 558 {
 559         struct sk_buff *skb = urb->context;
 560         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 561         struct btusb_data *data = hci_get_drvdata(hdev);
 562
 563         BT_DBG("%s urb %p status %d count %d", hdev->name,
 564                                         urb, urb->status, urb->actual_length);
 565
 566         if (!test_bit(HCI_RUNNING, &hdev->flags))
 567                 goto done;
 568
 569         if (!urb->status)
 570                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 571         else
 572                 hdev->stat.err_tx++;
 573
 574 done:
 575         spin_lock(&data->txlock);
 576         data->tx_in_flight--;
 577         spin_unlock(&data->txlock);
 578
 579         kfree(urb->setup_packet);
 580
 581         kfree_skb(skb);
 582 }
 583
 584 static void btusb_isoc_tx_complete(struct urb *urb)
 585 {
 586         struct sk_buff *skb = urb->context;
 587         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 588
 589         BT_DBG("%s urb %p status %d count %d", hdev->name,
 590                                         urb, urb->status, urb->actual_length);
 591
 592         if (!test_bit(HCI_RUNNING, &hdev->flags))
 593                 goto done;
 594
 595         if (!urb->status)
 596                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 597         else
 598                 hdev->stat.err_tx++;
 599
 600 done:
 601         kfree(urb->setup_packet);
 602
 603         kfree_skb(skb);
 604 }
 605
 606 static int btusb_open(struct hci_dev *hdev)
 607 {
 608         struct btusb_data *data = hci_get_drvdata(hdev);
 609         int err;
 610
 611         BT_DBG("%s", hdev->name);
 612
 613         err = usb_autopm_get_interface(data->intf);
 614         if (err < 0)
 615                 return err;
 616
 617         data->intf->needs_remote_wakeup = 1;
 618
 619         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 620                 goto done;
 621
 622         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 623                 goto done;
 624
 625         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 626         if (err < 0)
 627                 goto failed;
 628
 629         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 630         if (err < 0) {
 631                 usb_kill_anchored_urbs(&data->intr_anchor);
 632                 goto failed;
 633         }
 634
 635         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 636         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 637
 638 done:
 639         usb_autopm_put_interface(data->intf);
 640         return 0;
 641
 642 failed:
 643         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 644         clear_bit(HCI_RUNNING, &hdev->flags);
 645         usb_autopm_put_interface(data->intf);
 646         return err;
 647 }
 648
 649 static void btusb_stop_traffic(struct btusb_data *data)
 650 {
 651         usb_kill_anchored_urbs(&data->intr_anchor);
 652         usb_kill_anchored_urbs(&data->bulk_anchor);
 653         usb_kill_anchored_urbs(&data->isoc_anchor);
 654 }
 655
 656 static int btusb_close(struct hci_dev *hdev)
 657 {
 658         struct btusb_data *data = hci_get_drvdata(hdev);
 659         int err;
 660
 661         BT_DBG("%s", hdev->name);
 662
 663         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 664                 return 0;
 665
 666         cancel_work_sync(&data->work);
 667         cancel_work_sync(&data->waker);
 668
 669         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 670         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 671         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 672
 673         btusb_stop_traffic(data);
 674         err = usb_autopm_get_interface(data->intf);
 675         if (err < 0)
 676                 goto failed;
 677
 678         data->intf->needs_remote_wakeup = 0;
 679         usb_autopm_put_interface(data->intf);
 680
 681 failed:
 682         usb_scuttle_anchored_urbs(&data->deferred);
 683         return 0;
 684 }
 685
 686 static int btusb_flush(struct hci_dev *hdev)
 687 {
 688         struct btusb_data *data = hci_get_drvdata(hdev);
 689
 690         BT_DBG("%s", hdev->name);
 691
 692         usb_kill_anchored_urbs(&data->tx_anchor);
 693
 694         return 0;
 695 }
 696
 697 static int btusb_send_frame(struct sk_buff *skb)
 698 {
 699         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 700         struct btusb_data *data = hci_get_drvdata(hdev);
 701         struct usb_ctrlrequest *dr;
 702         struct urb *urb;
 703         unsigned int pipe;
 704         int err;
 705
 706         BT_DBG("%s", hdev->name);
 707
 708         if (!test_bit(HCI_RUNNING, &hdev->flags))
 709                 return -EBUSY;
 710
 711         switch (bt_cb(skb)->pkt_type) {
 712         case HCI_COMMAND_PKT:
 713                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 714                 if (!urb)
 715                         return -ENOMEM;
 716
 717                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 718                 if (!dr) {
 719                         usb_free_urb(urb);
 720                         return -ENOMEM;
 721                 }
 722
 723                 dr->bRequestType = data->cmdreq_type;
 724                 dr->bRequest     = 0;
 725                 dr->wIndex       = 0;
 726                 dr->wValue       = 0;
 727                 dr->wLength      = __cpu_to_le16(skb->len);
 728
 729                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 730
 731                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 732                                 skb->data, skb->len, btusb_tx_complete, skb);
 733
 734                 hdev->stat.cmd_tx++;
 735                 break;
 736
 737         case HCI_ACLDATA_PKT:
 738                 if (!data->bulk_tx_ep)
 739                         return -ENODEV;
 740
 741                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 742                 if (!urb)
 743                         return -ENOMEM;
 744
 745                 pipe = usb_sndbulkpipe(data->udev,
 746                                         data->bulk_tx_ep->bEndpointAddress);
 747
 748                 usb_fill_bulk_urb(urb, data->udev, pipe,
 749                                 skb->data, skb->len, btusb_tx_complete, skb);
 750
 751                 hdev->stat.acl_tx++;
 752                 break;
 753
 754         case HCI_SCODATA_PKT:
 755                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 756                         return -ENODEV;
 757
 758                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 759                 if (!urb)
 760                         return -ENOMEM;
 761
 762                 pipe = usb_sndisocpipe(data->udev,
 763                                         data->isoc_tx_ep->bEndpointAddress);
 764
 765                 usb_fill_int_urb(urb, data->udev, pipe,
 766                                 skb->data, skb->len, btusb_isoc_tx_complete,
 767                                 skb, data->isoc_tx_ep->bInterval);
 768
 769                 urb->transfer_flags  = URB_ISO_ASAP;
 770
 771                 __fill_isoc_descriptor(urb, skb->len,
 772                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 773
 774                 hdev->stat.sco_tx++;
 775                 goto skip_waking;
 776
 777         default:
 778                 return -EILSEQ;
 779         }
 780
 781         err = inc_tx(data);
 782         if (err) {
 783                 usb_anchor_urb(urb, &data->deferred);
 784                 schedule_work(&data->waker);
 785                 err = 0;
 786                 goto done;
 787         }
 788
 789 skip_waking:
 790         usb_anchor_urb(urb, &data->tx_anchor);
 791
 792         err = usb_submit_urb(urb, GFP_ATOMIC);
 793         if (err < 0) {
 794                 if (err != -EPERM && err != -ENODEV)
 795                         BT_ERR("%s urb %p submission failed (%d)",
 796                                                 hdev->name, urb, -err);
 797                 kfree(urb->setup_packet);
 798                 usb_unanchor_urb(urb);
 799         } else {
 800                 usb_mark_last_busy(data->udev);
 801         }
 802
 803 done:
 804         usb_free_urb(urb);
 805         return err;
 806 }
 807
 808 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 809 {
 810         struct btusb_data *data = hci_get_drvdata(hdev);
 811
 812         BT_DBG("%s evt %d", hdev->name, evt);
 813
 814         if (hdev->conn_hash.sco_num != data->sco_num) {
 815                 data->sco_num = hdev->conn_hash.sco_num;
 816                 schedule_work(&data->work);
 817         }
 818 }
 819
 820 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 821 {
 822         struct btusb_data *data = hci_get_drvdata(hdev);
 823         struct usb_interface *intf = data->isoc;
 824         struct usb_endpoint_descriptor *ep_desc;
 825         int i, err;
 826
 827         if (!data->isoc)
 828                 return -ENODEV;
 829
 830         err = usb_set_interface(data->udev, 1, altsetting);
 831         if (err < 0) {
 832                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 833                 return err;
 834         }
 835
 836         data->isoc_altsetting = altsetting;
 837
 838         data->isoc_tx_ep = NULL;
 839         data->isoc_rx_ep = NULL;
 840
 841         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 842                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 843
 844                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 845                         data->isoc_tx_ep = ep_desc;
 846                         continue;
 847                 }
 848
 849                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 850                         data->isoc_rx_ep = ep_desc;
 851                         continue;
 852                 }
 853         }
 854
 855         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 856                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 857                 return -ENODEV;
 858         }
 859
 860         return 0;
 861 }
 862
 863 static void btusb_work(struct work_struct *work)
 864 {
 865         struct btusb_data *data = container_of(work, struct btusb_data, work);
 866         struct hci_dev *hdev = data->hdev;
 867         int new_alts;
 868         int err;
 869
 870         if (hdev->conn_hash.sco_num > 0) {
 871                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 872                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 873                         if (err < 0) {
 874                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 875                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 876                                 return;
 877                         }
 878
 879                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 880                 }
 881
 882                 if (hdev->voice_setting & 0x0020) {
 883                         static const int alts[3] = { 2, 4, 5 };
 884                         new_alts = alts[hdev->conn_hash.sco_num - 1];
 885                 } else {
 886                         new_alts = hdev->conn_hash.sco_num;
 887                 }
 888
 889                 if (data->isoc_altsetting != new_alts) {
 890                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 891                         usb_kill_anchored_urbs(&data->isoc_anchor);
 892
 893                         if (__set_isoc_interface(hdev, new_alts) < 0)
 894                                 return;
 895                 }
 896
 897                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 898                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 899                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 900                         else
 901                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 902                 }
 903         } else {
 904                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 905                 usb_kill_anchored_urbs(&data->isoc_anchor);
 906
 907                 __set_isoc_interface(hdev, 0);
 908                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 909                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 910         }
 911 }
 912
 913 static void btusb_waker(struct work_struct *work)
 914 {
 915         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 916         int err;
 917
 918         err = usb_autopm_get_interface(data->intf);
 919         if (err < 0)
 920                 return;
 921
 922         usb_autopm_put_interface(data->intf);
 923 }
 924
 925 static int btusb_probe(struct usb_interface *intf,
 926                                 const struct usb_device_id *id)
 927 {
 928         struct usb_endpoint_descriptor *ep_desc;
 929         struct btusb_data *data;
 930         struct hci_dev *hdev;
 931         int i, err;
 932
 933         BT_DBG("intf %p id %p", intf, id);
 934
 935         /* interface numbers are hardcoded in the spec */
 936         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 937                 return -ENODEV;
 938
 939         if (!id->driver_info) {
 940                 const struct usb_device_id *match;
 941                 match = usb_match_id(intf, blacklist_table);
 942                 if (match)
 943                         id = match;
 944         }
 945
 946         if (id->driver_info == BTUSB_IGNORE)
 947                 return -ENODEV;
 948
 949         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 950                 return -ENODEV;
 951
 952         if (ignore_csr && id->driver_info & BTUSB_CSR)
 953                 return -ENODEV;
 954
 955         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 956                 return -ENODEV;
 957
 958         if (id->driver_info & BTUSB_ATH3012) {
 959                 struct usb_device *udev = interface_to_usbdev(intf);
 960
 961                 /* Old firmware would otherwise let ath3k driver load
 962                  * patch and sysconfig files */
 963                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 964                         return -ENODEV;
 965         }
 966
 967         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
 968         if (!data)
 969                 return -ENOMEM;
 970
 971         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 972                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 973
 974                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 975                         data->intr_ep = ep_desc;
 976                         continue;
 977                 }
 978
 979                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 980                         data->bulk_tx_ep = ep_desc;
 981                         continue;
 982                 }
 983
 984                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 985                         data->bulk_rx_ep = ep_desc;
 986                         continue;
 987                 }
 988         }
 989
 990         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
 991                 return -ENODEV;
 992
 993         data->cmdreq_type = USB_TYPE_CLASS;
 994
 995         data->udev = interface_to_usbdev(intf);
 996         data->intf = intf;
 997
 998         spin_lock_init(&data->lock);
 999
1000         INIT_WORK(&data->work, btusb_work);
1001         INIT_WORK(&data->waker, btusb_waker);
1002         spin_lock_init(&data->txlock);
1003
1004         init_usb_anchor(&data->tx_anchor);
1005         init_usb_anchor(&data->intr_anchor);
1006         init_usb_anchor(&data->bulk_anchor);
1007         init_usb_anchor(&data->isoc_anchor);
1008         init_usb_anchor(&data->deferred);
1009
1010         hdev = hci_alloc_dev();
1011         if (!hdev)
1012                 return -ENOMEM;
1013
1014         hdev->bus = HCI_USB;
1015         hci_set_drvdata(hdev, data);
1016
1017         data->hdev = hdev;
1018
1019         SET_HCIDEV_DEV(hdev, &intf->dev);
1020
1021         hdev->open     = btusb_open;
1022         hdev->close    = btusb_close;
1023         hdev->flush    = btusb_flush;
1024         hdev->send     = btusb_send_frame;
1025         hdev->notify   = btusb_notify;
1026
1027         /* Interface numbers are hardcoded in the specification */
1028         data->isoc = usb_ifnum_to_if(data->udev, 1);
1029
1030         if (!reset)
1031                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1032
1033         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1034                 if (!disable_scofix)
1035                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1036         }
1037
1038         if (id->driver_info & BTUSB_BROKEN_ISOC)
1039                 data->isoc = NULL;
1040
1041         if (id->driver_info & BTUSB_DIGIANSWER) {
1042                 data->cmdreq_type = USB_TYPE_VENDOR;
1043                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1044         }
1045
1046         if (id->driver_info & BTUSB_CSR) {
1047                 struct usb_device *udev = data->udev;
1048
1049                 /* Old firmware would otherwise execute USB reset */
1050                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1051                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1052         }
1053
1054         if (id->driver_info & BTUSB_SNIFFER) {
1055                 struct usb_device *udev = data->udev;
1056
1057                 /* New sniffer firmware has crippled HCI interface */
1058                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1059                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1060
1061                 data->isoc = NULL;
1062         }
1063
1064         if (id->driver_info & BTUSB_BCM92035) {
1065                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1066                 struct sk_buff *skb;
1067
1068                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1069                 if (skb) {
1070                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1071                         skb_queue_tail(&hdev->driver_init, skb);
1072                 }
1073         }
1074
1075         if (data->isoc) {
1076                 err = usb_driver_claim_interface(&btusb_driver,
1077                                                         data->isoc, data);
1078                 if (err < 0) {
1079                         hci_free_dev(hdev);
1080                         return err;
1081                 }
1082         }
1083
1084         err = hci_register_dev(hdev);
1085         if (err < 0) {
1086                 hci_free_dev(hdev);
1087                 return err;
1088         }
1089
1090         usb_set_intfdata(intf, data);
1091
1092         return 0;
1093 }
1094
1095 static void btusb_disconnect(struct usb_interface *intf)
1096 {
1097         struct btusb_data *data = usb_get_intfdata(intf);
1098         struct hci_dev *hdev;
1099
1100         BT_DBG("intf %p", intf);
1101
1102         if (!data)
1103                 return;
1104
1105         hdev = data->hdev;
1106         usb_set_intfdata(data->intf, NULL);
1107
1108         if (data->isoc)
1109                 usb_set_intfdata(data->isoc, NULL);
1110
1111         hci_unregister_dev(hdev);
1112
1113         if (intf == data->isoc)
1114                 usb_driver_release_interface(&btusb_driver, data->intf);
1115         else if (data->isoc)
1116                 usb_driver_release_interface(&btusb_driver, data->isoc);
1117
1118         hci_free_dev(hdev);
1119 }
1120
1121 #ifdef CONFIG_PM
1122 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1123 {
1124         struct btusb_data *data = usb_get_intfdata(intf);
1125
1126         BT_DBG("intf %p", intf);
1127
1128         if (data->suspend_count++)
1129                 return 0;
1130
1131         spin_lock_irq(&data->txlock);
1132         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1133                 set_bit(BTUSB_SUSPENDING, &data->flags);
1134                 spin_unlock_irq(&data->txlock);
1135         } else {
1136                 spin_unlock_irq(&data->txlock);
1137                 data->suspend_count--;
1138                 return -EBUSY;
1139         }
1140
1141         cancel_work_sync(&data->work);
1142
1143         btusb_stop_traffic(data);
1144         usb_kill_anchored_urbs(&data->tx_anchor);
1145
1146         return 0;
1147 }
1148
1149 static void play_deferred(struct btusb_data *data)
1150 {
1151         struct urb *urb;
1152         int err;
1153
1154         while ((urb = usb_get_from_anchor(&data->deferred))) {
1155                 err = usb_submit_urb(urb, GFP_ATOMIC);
1156                 if (err < 0)
1157                         break;
1158
1159                 data->tx_in_flight++;
1160         }
1161         usb_scuttle_anchored_urbs(&data->deferred);
1162 }
1163
1164 static int btusb_resume(struct usb_interface *intf)
1165 {
1166         struct btusb_data *data = usb_get_intfdata(intf);
1167         struct hci_dev *hdev = data->hdev;
1168         int err = 0;
1169
1170         BT_DBG("intf %p", intf);
1171
1172         if (--data->suspend_count)
1173                 return 0;
1174
1175         if (!test_bit(HCI_RUNNING, &hdev->flags))
1176                 goto done;
1177
1178         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1179                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1180                 if (err < 0) {
1181                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1182                         goto failed;
1183                 }
1184         }
1185
1186         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1187                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1188                 if (err < 0) {
1189                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1190                         goto failed;
1191                 }
1192
1193                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1194         }
1195
1196         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1197                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1198                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1199                 else
1200                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1201         }
1202
1203         spin_lock_irq(&data->txlock);
1204         play_deferred(data);
1205         clear_bit(BTUSB_SUSPENDING, &data->flags);
1206         spin_unlock_irq(&data->txlock);
1207         schedule_work(&data->work);
1208
1209         return 0;
1210
1211 failed:
1212         usb_scuttle_anchored_urbs(&data->deferred);
1213 done:
1214         spin_lock_irq(&data->txlock);
1215         clear_bit(BTUSB_SUSPENDING, &data->flags);
1216         spin_unlock_irq(&data->txlock);
1217
1218         return err;
1219 }
1220 #endif
1221
1222 static struct usb_driver btusb_driver = {
1223         .name           = "btusb",
1224         .probe          = btusb_probe,
1225         .disconnect     = btusb_disconnect,
1226 #ifdef CONFIG_PM
1227         .suspend        = btusb_suspend,
1228         .resume         = btusb_resume,
1229 #endif
1230         .id_table       = btusb_table,
1231         .supports_autosuspend = 1,
1232         .disable_hub_initiated_lpm = 1,
1233 };
1234
1235 module_usb_driver(btusb_driver);
1236
1237 module_param(ignore_dga, bool, 0644);
1238 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1239
1240 module_param(ignore_csr, bool, 0644);
1241 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1242
1243 module_param(ignore_sniffer, bool, 0644);
1244 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1245
1246 module_param(disable_scofix, bool, 0644);
1247 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1248
1249 module_param(force_scofix, bool, 0644);
1250 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1251
1252 module_param(reset, bool, 0644);
1253 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1254
1255 MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
1256 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1257 MODULE_VERSION(VERSION);
1258 MODULE_LICENSE("GPL");