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(0x0489, 0xe042) },
 108         { USB_DEVICE(0x413c, 0x8197) },
 109
 110         /* Foxconn - Hon Hai */
 111         { USB_DEVICE(0x0489, 0xe033) },
 112
 113         /*Broadcom devices with vendor specific id */
 114         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 115
 116         { }     /* Terminating entry */
 117 };
 118
 119 MODULE_DEVICE_TABLE(usb, btusb_table);
 120
 121 static struct usb_device_id blacklist_table[] = {
 122         /* CSR BlueCore devices */
 123         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 124
 125         /* Broadcom BCM2033 without firmware */
 126         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 127
 128         /* Atheros 3011 with sflash firmware */
 129         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 130         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 131         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 132         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 133         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 134
 135         /* Atheros AR9285 Malbec with sflash firmware */
 136         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 137
 138         /* Atheros 3012 with sflash firmware */
 139         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0489, 0xe057), .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 = hdev->driver_data;
 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 = hdev->driver_data;
 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                 BT_ERR("%s urb %p submission failed (%d)",
 342                                                 hdev->name, urb, -err);
 343                 usb_unanchor_urb(urb);
 344         }
 345
 346         usb_free_urb(urb);
 347
 348         return err;
 349 }
 350
 351 static void btusb_bulk_complete(struct urb *urb)
 352 {
 353         struct hci_dev *hdev = urb->context;
 354         struct btusb_data *data = hdev->driver_data;
 355         int err;
 356
 357         BT_DBG("%s urb %p status %d count %d", hdev->name,
 358                                         urb, urb->status, urb->actual_length);
 359
 360         if (!test_bit(HCI_RUNNING, &hdev->flags))
 361                 return;
 362
 363         if (urb->status == 0) {
 364                 hdev->stat.byte_rx += urb->actual_length;
 365
 366                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 367                                                 urb->transfer_buffer,
 368                                                 urb->actual_length) < 0) {
 369                         BT_ERR("%s corrupted ACL packet", hdev->name);
 370                         hdev->stat.err_rx++;
 371                 }
 372         }
 373
 374         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 375                 return;
 376
 377         usb_anchor_urb(urb, &data->bulk_anchor);
 378         usb_mark_last_busy(data->udev);
 379
 380         err = usb_submit_urb(urb, GFP_ATOMIC);
 381         if (err < 0) {
 382                 /* -EPERM: urb is being killed;
 383                  * -ENODEV: device got disconnected */
 384                 if (err != -EPERM && err != -ENODEV)
 385                         BT_ERR("%s urb %p failed to resubmit (%d)",
 386                                                 hdev->name, urb, -err);
 387                 usb_unanchor_urb(urb);
 388         }
 389 }
 390
 391 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 392 {
 393         struct btusb_data *data = hdev->driver_data;
 394         struct urb *urb;
 395         unsigned char *buf;
 396         unsigned int pipe;
 397         int err, size = HCI_MAX_FRAME_SIZE;
 398
 399         BT_DBG("%s", hdev->name);
 400
 401         if (!data->bulk_rx_ep)
 402                 return -ENODEV;
 403
 404         urb = usb_alloc_urb(0, mem_flags);
 405         if (!urb)
 406                 return -ENOMEM;
 407
 408         buf = kmalloc(size, mem_flags);
 409         if (!buf) {
 410                 usb_free_urb(urb);
 411                 return -ENOMEM;
 412         }
 413
 414         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 415
 416         usb_fill_bulk_urb(urb, data->udev, pipe,
 417                                         buf, size, btusb_bulk_complete, hdev);
 418
 419         urb->transfer_flags |= URB_FREE_BUFFER;
 420
 421         usb_mark_last_busy(data->udev);
 422         usb_anchor_urb(urb, &data->bulk_anchor);
 423
 424         err = usb_submit_urb(urb, mem_flags);
 425         if (err < 0) {
 426                 BT_ERR("%s urb %p submission failed (%d)",
 427                                                 hdev->name, urb, -err);
 428                 usb_unanchor_urb(urb);
 429         }
 430
 431         usb_free_urb(urb);
 432
 433         return err;
 434 }
 435
 436 static void btusb_isoc_complete(struct urb *urb)
 437 {
 438         struct hci_dev *hdev = urb->context;
 439         struct btusb_data *data = hdev->driver_data;
 440         int i, err;
 441
 442         BT_DBG("%s urb %p status %d count %d", hdev->name,
 443                                         urb, urb->status, urb->actual_length);
 444
 445         if (!test_bit(HCI_RUNNING, &hdev->flags))
 446                 return;
 447
 448         if (urb->status == 0) {
 449                 for (i = 0; i < urb->number_of_packets; i++) {
 450                         unsigned int offset = urb->iso_frame_desc[i].offset;
 451                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 452
 453                         if (urb->iso_frame_desc[i].status)
 454                                 continue;
 455
 456                         hdev->stat.byte_rx += length;
 457
 458                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 459                                                 urb->transfer_buffer + offset,
 460                                                                 length) < 0) {
 461                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 462                                 hdev->stat.err_rx++;
 463                         }
 464                 }
 465         }
 466
 467         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 468                 return;
 469
 470         usb_anchor_urb(urb, &data->isoc_anchor);
 471
 472         err = usb_submit_urb(urb, GFP_ATOMIC);
 473         if (err < 0) {
 474                 /* -EPERM: urb is being killed;
 475                  * -ENODEV: device got disconnected */
 476                 if (err != -EPERM && err != -ENODEV)
 477                         BT_ERR("%s urb %p failed to resubmit (%d)",
 478                                                 hdev->name, urb, -err);
 479                 usb_unanchor_urb(urb);
 480         }
 481 }
 482
 483 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 484 {
 485         int i, offset = 0;
 486
 487         BT_DBG("len %d mtu %d", len, mtu);
 488
 489         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 490                                         i++, offset += mtu, len -= mtu) {
 491                 urb->iso_frame_desc[i].offset = offset;
 492                 urb->iso_frame_desc[i].length = mtu;
 493         }
 494
 495         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 496                 urb->iso_frame_desc[i].offset = offset;
 497                 urb->iso_frame_desc[i].length = len;
 498                 i++;
 499         }
 500
 501         urb->number_of_packets = i;
 502 }
 503
 504 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 505 {
 506         struct btusb_data *data = hdev->driver_data;
 507         struct urb *urb;
 508         unsigned char *buf;
 509         unsigned int pipe;
 510         int err, size;
 511
 512         BT_DBG("%s", hdev->name);
 513
 514         if (!data->isoc_rx_ep)
 515                 return -ENODEV;
 516
 517         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 518         if (!urb)
 519                 return -ENOMEM;
 520
 521         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 522                                                 BTUSB_MAX_ISOC_FRAMES;
 523
 524         buf = kmalloc(size, mem_flags);
 525         if (!buf) {
 526                 usb_free_urb(urb);
 527                 return -ENOMEM;
 528         }
 529
 530         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 531
 532         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 533                                 hdev, data->isoc_rx_ep->bInterval);
 534
 535         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 536
 537         __fill_isoc_descriptor(urb, size,
 538                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 539
 540         usb_anchor_urb(urb, &data->isoc_anchor);
 541
 542         err = usb_submit_urb(urb, mem_flags);
 543         if (err < 0) {
 544                 BT_ERR("%s urb %p submission failed (%d)",
 545                                                 hdev->name, urb, -err);
 546                 usb_unanchor_urb(urb);
 547         }
 548
 549         usb_free_urb(urb);
 550
 551         return err;
 552 }
 553
 554 static void btusb_tx_complete(struct urb *urb)
 555 {
 556         struct sk_buff *skb = urb->context;
 557         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 558         struct btusb_data *data = hdev->driver_data;
 559
 560         BT_DBG("%s urb %p status %d count %d", hdev->name,
 561                                         urb, urb->status, urb->actual_length);
 562
 563         if (!test_bit(HCI_RUNNING, &hdev->flags))
 564                 goto done;
 565
 566         if (!urb->status)
 567                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 568         else
 569                 hdev->stat.err_tx++;
 570
 571 done:
 572         spin_lock(&data->txlock);
 573         data->tx_in_flight--;
 574         spin_unlock(&data->txlock);
 575
 576         kfree(urb->setup_packet);
 577
 578         kfree_skb(skb);
 579 }
 580
 581 static void btusb_isoc_tx_complete(struct urb *urb)
 582 {
 583         struct sk_buff *skb = urb->context;
 584         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 585
 586         BT_DBG("%s urb %p status %d count %d", hdev->name,
 587                                         urb, urb->status, urb->actual_length);
 588
 589         if (!test_bit(HCI_RUNNING, &hdev->flags))
 590                 goto done;
 591
 592         if (!urb->status)
 593                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 594         else
 595                 hdev->stat.err_tx++;
 596
 597 done:
 598         kfree(urb->setup_packet);
 599
 600         kfree_skb(skb);
 601 }
 602
 603 static int btusb_open(struct hci_dev *hdev)
 604 {
 605         struct btusb_data *data = hdev->driver_data;
 606         int err;
 607
 608         BT_DBG("%s", hdev->name);
 609
 610         err = usb_autopm_get_interface(data->intf);
 611         if (err < 0)
 612                 return err;
 613
 614         data->intf->needs_remote_wakeup = 1;
 615
 616         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 617                 goto done;
 618
 619         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 620                 goto done;
 621
 622         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 623         if (err < 0)
 624                 goto failed;
 625
 626         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 627         if (err < 0) {
 628                 usb_kill_anchored_urbs(&data->intr_anchor);
 629                 goto failed;
 630         }
 631
 632         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 633         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 634
 635 done:
 636         usb_autopm_put_interface(data->intf);
 637         return 0;
 638
 639 failed:
 640         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 641         clear_bit(HCI_RUNNING, &hdev->flags);
 642         usb_autopm_put_interface(data->intf);
 643         return err;
 644 }
 645
 646 static void btusb_stop_traffic(struct btusb_data *data)
 647 {
 648         usb_kill_anchored_urbs(&data->intr_anchor);
 649         usb_kill_anchored_urbs(&data->bulk_anchor);
 650         usb_kill_anchored_urbs(&data->isoc_anchor);
 651 }
 652
 653 static int btusb_close(struct hci_dev *hdev)
 654 {
 655         struct btusb_data *data = hdev->driver_data;
 656         int err;
 657
 658         BT_DBG("%s", hdev->name);
 659
 660         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 661                 return 0;
 662
 663         cancel_work_sync(&data->work);
 664         cancel_work_sync(&data->waker);
 665
 666         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 667         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 668         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 669
 670         btusb_stop_traffic(data);
 671         err = usb_autopm_get_interface(data->intf);
 672         if (err < 0)
 673                 goto failed;
 674
 675         data->intf->needs_remote_wakeup = 0;
 676         usb_autopm_put_interface(data->intf);
 677
 678 failed:
 679         usb_scuttle_anchored_urbs(&data->deferred);
 680         return 0;
 681 }
 682
 683 static int btusb_flush(struct hci_dev *hdev)
 684 {
 685         struct btusb_data *data = hdev->driver_data;
 686
 687         BT_DBG("%s", hdev->name);
 688
 689         usb_kill_anchored_urbs(&data->tx_anchor);
 690
 691         return 0;
 692 }
 693
 694 static int btusb_send_frame(struct sk_buff *skb)
 695 {
 696         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 697         struct btusb_data *data = hdev->driver_data;
 698         struct usb_ctrlrequest *dr;
 699         struct urb *urb;
 700         unsigned int pipe;
 701         int err;
 702
 703         BT_DBG("%s", hdev->name);
 704
 705         if (!test_bit(HCI_RUNNING, &hdev->flags))
 706                 return -EBUSY;
 707
 708         switch (bt_cb(skb)->pkt_type) {
 709         case HCI_COMMAND_PKT:
 710                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 711                 if (!urb)
 712                         return -ENOMEM;
 713
 714                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 715                 if (!dr) {
 716                         usb_free_urb(urb);
 717                         return -ENOMEM;
 718                 }
 719
 720                 dr->bRequestType = data->cmdreq_type;
 721                 dr->bRequest     = 0;
 722                 dr->wIndex       = 0;
 723                 dr->wValue       = 0;
 724                 dr->wLength      = __cpu_to_le16(skb->len);
 725
 726                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 727
 728                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 729                                 skb->data, skb->len, btusb_tx_complete, skb);
 730
 731                 hdev->stat.cmd_tx++;
 732                 break;
 733
 734         case HCI_ACLDATA_PKT:
 735                 if (!data->bulk_tx_ep)
 736                         return -ENODEV;
 737
 738                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 739                 if (!urb)
 740                         return -ENOMEM;
 741
 742                 pipe = usb_sndbulkpipe(data->udev,
 743                                         data->bulk_tx_ep->bEndpointAddress);
 744
 745                 usb_fill_bulk_urb(urb, data->udev, pipe,
 746                                 skb->data, skb->len, btusb_tx_complete, skb);
 747
 748                 hdev->stat.acl_tx++;
 749                 break;
 750
 751         case HCI_SCODATA_PKT:
 752                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 753                         return -ENODEV;
 754
 755                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 756                 if (!urb)
 757                         return -ENOMEM;
 758
 759                 pipe = usb_sndisocpipe(data->udev,
 760                                         data->isoc_tx_ep->bEndpointAddress);
 761
 762                 usb_fill_int_urb(urb, data->udev, pipe,
 763                                 skb->data, skb->len, btusb_isoc_tx_complete,
 764                                 skb, data->isoc_tx_ep->bInterval);
 765
 766                 urb->transfer_flags  = URB_ISO_ASAP;
 767
 768                 __fill_isoc_descriptor(urb, skb->len,
 769                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 770
 771                 hdev->stat.sco_tx++;
 772                 goto skip_waking;
 773
 774         default:
 775                 return -EILSEQ;
 776         }
 777
 778         err = inc_tx(data);
 779         if (err) {
 780                 usb_anchor_urb(urb, &data->deferred);
 781                 schedule_work(&data->waker);
 782                 err = 0;
 783                 goto done;
 784         }
 785
 786 skip_waking:
 787         usb_anchor_urb(urb, &data->tx_anchor);
 788
 789         err = usb_submit_urb(urb, GFP_ATOMIC);
 790         if (err < 0) {
 791                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 792                 kfree(urb->setup_packet);
 793                 usb_unanchor_urb(urb);
 794         } else {
 795                 usb_mark_last_busy(data->udev);
 796         }
 797
 798 done:
 799         usb_free_urb(urb);
 800         return err;
 801 }
 802
 803 static void btusb_destruct(struct hci_dev *hdev)
 804 {
 805         struct btusb_data *data = hdev->driver_data;
 806
 807         BT_DBG("%s", hdev->name);
 808
 809         kfree(data);
 810 }
 811
 812 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 813 {
 814         struct btusb_data *data = hdev->driver_data;
 815
 816         BT_DBG("%s evt %d", hdev->name, evt);
 817
 818         if (hdev->conn_hash.sco_num != data->sco_num) {
 819                 data->sco_num = hdev->conn_hash.sco_num;
 820                 schedule_work(&data->work);
 821         }
 822 }
 823
 824 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 825 {
 826         struct btusb_data *data = hdev->driver_data;
 827         struct usb_interface *intf = data->isoc;
 828         struct usb_endpoint_descriptor *ep_desc;
 829         int i, err;
 830
 831         if (!data->isoc)
 832                 return -ENODEV;
 833
 834         err = usb_set_interface(data->udev, 1, altsetting);
 835         if (err < 0) {
 836                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 837                 return err;
 838         }
 839
 840         data->isoc_altsetting = altsetting;
 841
 842         data->isoc_tx_ep = NULL;
 843         data->isoc_rx_ep = NULL;
 844
 845         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 846                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 847
 848                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 849                         data->isoc_tx_ep = ep_desc;
 850                         continue;
 851                 }
 852
 853                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 854                         data->isoc_rx_ep = ep_desc;
 855                         continue;
 856                 }
 857         }
 858
 859         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 860                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 861                 return -ENODEV;
 862         }
 863
 864         return 0;
 865 }
 866
 867 static void btusb_work(struct work_struct *work)
 868 {
 869         struct btusb_data *data = container_of(work, struct btusb_data, work);
 870         struct hci_dev *hdev = data->hdev;
 871         int err;
 872
 873         if (hdev->conn_hash.sco_num > 0) {
 874                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 875                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 876                         if (err < 0) {
 877                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 878                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 879                                 return;
 880                         }
 881
 882                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 883                 }
 884                 if (data->isoc_altsetting != 2) {
 885                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 886                         usb_kill_anchored_urbs(&data->isoc_anchor);
 887
 888                         if (__set_isoc_interface(hdev, 2) < 0)
 889                                 return;
 890                 }
 891
 892                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 893                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 894                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 895                         else
 896                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 897                 }
 898         } else {
 899                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 900                 usb_kill_anchored_urbs(&data->isoc_anchor);
 901
 902                 __set_isoc_interface(hdev, 0);
 903                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 904                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 905         }
 906 }
 907
 908 static void btusb_waker(struct work_struct *work)
 909 {
 910         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 911         int err;
 912
 913         err = usb_autopm_get_interface(data->intf);
 914         if (err < 0)
 915                 return;
 916
 917         usb_autopm_put_interface(data->intf);
 918 }
 919
 920 static int btusb_probe(struct usb_interface *intf,
 921                                 const struct usb_device_id *id)
 922 {
 923         struct usb_endpoint_descriptor *ep_desc;
 924         struct btusb_data *data;
 925         struct hci_dev *hdev;
 926         int i, err;
 927
 928         BT_DBG("intf %p id %p", intf, id);
 929
 930         /* interface numbers are hardcoded in the spec */
 931         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 932                 return -ENODEV;
 933
 934         if (!id->driver_info) {
 935                 const struct usb_device_id *match;
 936                 match = usb_match_id(intf, blacklist_table);
 937                 if (match)
 938                         id = match;
 939         }
 940
 941         if (id->driver_info == BTUSB_IGNORE)
 942                 return -ENODEV;
 943
 944         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 945                 return -ENODEV;
 946
 947         if (ignore_csr && id->driver_info & BTUSB_CSR)
 948                 return -ENODEV;
 949
 950         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 951                 return -ENODEV;
 952
 953         if (id->driver_info & BTUSB_ATH3012) {
 954                 struct usb_device *udev = interface_to_usbdev(intf);
 955
 956                 /* Old firmware would otherwise let ath3k driver load
 957                  * patch and sysconfig files */
 958                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 959                         return -ENODEV;
 960         }
 961
 962         data = kzalloc(sizeof(*data), GFP_KERNEL);
 963         if (!data)
 964                 return -ENOMEM;
 965
 966         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 967                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 968
 969                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 970                         data->intr_ep = ep_desc;
 971                         continue;
 972                 }
 973
 974                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 975                         data->bulk_tx_ep = ep_desc;
 976                         continue;
 977                 }
 978
 979                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 980                         data->bulk_rx_ep = ep_desc;
 981                         continue;
 982                 }
 983         }
 984
 985         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 986                 kfree(data);
 987                 return -ENODEV;
 988         }
 989
 990         data->cmdreq_type = USB_TYPE_CLASS;
 991
 992         data->udev = interface_to_usbdev(intf);
 993         data->intf = intf;
 994
 995         spin_lock_init(&data->lock);
 996
 997         INIT_WORK(&data->work, btusb_work);
 998         INIT_WORK(&data->waker, btusb_waker);
 999         spin_lock_init(&data->txlock);
1000
1001         init_usb_anchor(&data->tx_anchor);
1002         init_usb_anchor(&data->intr_anchor);
1003         init_usb_anchor(&data->bulk_anchor);
1004         init_usb_anchor(&data->isoc_anchor);
1005         init_usb_anchor(&data->deferred);
1006
1007         hdev = hci_alloc_dev();
1008         if (!hdev) {
1009                 kfree(data);
1010                 return -ENOMEM;
1011         }
1012
1013         hdev->bus = HCI_USB;
1014         hdev->driver_data = data;
1015
1016         data->hdev = hdev;
1017
1018         SET_HCIDEV_DEV(hdev, &intf->dev);
1019
1020         hdev->open     = btusb_open;
1021         hdev->close    = btusb_close;
1022         hdev->flush    = btusb_flush;
1023         hdev->send     = btusb_send_frame;
1024         hdev->destruct = btusb_destruct;
1025         hdev->notify   = btusb_notify;
1026
1027         hdev->owner = THIS_MODULE;
1028
1029         /* Interface numbers are hardcoded in the specification */
1030         data->isoc = usb_ifnum_to_if(data->udev, 1);
1031
1032         if (!reset)
1033                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1034
1035         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1036                 if (!disable_scofix)
1037                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1038         }
1039
1040         if (id->driver_info & BTUSB_BROKEN_ISOC)
1041                 data->isoc = NULL;
1042
1043         if (id->driver_info & BTUSB_DIGIANSWER) {
1044                 data->cmdreq_type = USB_TYPE_VENDOR;
1045                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1046         }
1047
1048         if (id->driver_info & BTUSB_CSR) {
1049                 struct usb_device *udev = data->udev;
1050
1051                 /* Old firmware would otherwise execute USB reset */
1052                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1053                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1054         }
1055
1056         if (id->driver_info & BTUSB_SNIFFER) {
1057                 struct usb_device *udev = data->udev;
1058
1059                 /* New sniffer firmware has crippled HCI interface */
1060                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1061                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1062
1063                 data->isoc = NULL;
1064         }
1065
1066         if (id->driver_info & BTUSB_BCM92035) {
1067                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1068                 struct sk_buff *skb;
1069
1070                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1071                 if (skb) {
1072                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1073                         skb_queue_tail(&hdev->driver_init, skb);
1074                 }
1075         }
1076
1077         if (data->isoc) {
1078                 err = usb_driver_claim_interface(&btusb_driver,
1079                                                         data->isoc, data);
1080                 if (err < 0) {
1081                         hci_free_dev(hdev);
1082                         kfree(data);
1083                         return err;
1084                 }
1085         }
1086
1087         err = hci_register_dev(hdev);
1088         if (err < 0) {
1089                 hci_free_dev(hdev);
1090                 kfree(data);
1091                 return err;
1092         }
1093
1094         usb_set_intfdata(intf, data);
1095
1096         return 0;
1097 }
1098
1099 static void btusb_disconnect(struct usb_interface *intf)
1100 {
1101         struct btusb_data *data = usb_get_intfdata(intf);
1102         struct hci_dev *hdev;
1103
1104         BT_DBG("intf %p", intf);
1105
1106         if (!data)
1107                 return;
1108
1109         hdev = data->hdev;
1110
1111         __hci_dev_hold(hdev);
1112
1113         usb_set_intfdata(data->intf, NULL);
1114
1115         if (data->isoc)
1116                 usb_set_intfdata(data->isoc, NULL);
1117
1118         hci_unregister_dev(hdev);
1119
1120         if (intf == data->isoc)
1121                 usb_driver_release_interface(&btusb_driver, data->intf);
1122         else if (data->isoc)
1123                 usb_driver_release_interface(&btusb_driver, data->isoc);
1124
1125         __hci_dev_put(hdev);
1126
1127         hci_free_dev(hdev);
1128 }
1129
1130 #ifdef CONFIG_PM
1131 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1132 {
1133         struct btusb_data *data = usb_get_intfdata(intf);
1134
1135         BT_DBG("intf %p", intf);
1136
1137         if (data->suspend_count++)
1138                 return 0;
1139
1140         spin_lock_irq(&data->txlock);
1141         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1142                 set_bit(BTUSB_SUSPENDING, &data->flags);
1143                 spin_unlock_irq(&data->txlock);
1144         } else {
1145                 spin_unlock_irq(&data->txlock);
1146                 data->suspend_count--;
1147                 return -EBUSY;
1148         }
1149
1150         cancel_work_sync(&data->work);
1151
1152         btusb_stop_traffic(data);
1153         usb_kill_anchored_urbs(&data->tx_anchor);
1154
1155         return 0;
1156 }
1157
1158 static void play_deferred(struct btusb_data *data)
1159 {
1160         struct urb *urb;
1161         int err;
1162
1163         while ((urb = usb_get_from_anchor(&data->deferred))) {
1164                 err = usb_submit_urb(urb, GFP_ATOMIC);
1165                 if (err < 0)
1166                         break;
1167
1168                 data->tx_in_flight++;
1169         }
1170         usb_scuttle_anchored_urbs(&data->deferred);
1171 }
1172
1173 static int btusb_resume(struct usb_interface *intf)
1174 {
1175         struct btusb_data *data = usb_get_intfdata(intf);
1176         struct hci_dev *hdev = data->hdev;
1177         int err = 0;
1178
1179         BT_DBG("intf %p", intf);
1180
1181         if (--data->suspend_count)
1182                 return 0;
1183
1184         if (!test_bit(HCI_RUNNING, &hdev->flags))
1185                 goto done;
1186
1187         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1188                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1189                 if (err < 0) {
1190                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1191                         goto failed;
1192                 }
1193         }
1194
1195         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1196                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1197                 if (err < 0) {
1198                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1199                         goto failed;
1200                 }
1201
1202                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1203         }
1204
1205         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1206                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1207                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1208                 else
1209                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1210         }
1211
1212         spin_lock_irq(&data->txlock);
1213         play_deferred(data);
1214         clear_bit(BTUSB_SUSPENDING, &data->flags);
1215         spin_unlock_irq(&data->txlock);
1216         schedule_work(&data->work);
1217
1218         return 0;
1219
1220 failed:
1221         usb_scuttle_anchored_urbs(&data->deferred);
1222 done:
1223         spin_lock_irq(&data->txlock);
1224         clear_bit(BTUSB_SUSPENDING, &data->flags);
1225         spin_unlock_irq(&data->txlock);
1226
1227         return err;
1228 }
1229 #endif
1230
1231 static struct usb_driver btusb_driver = {
1232         .name           = "btusb",
1233         .probe          = btusb_probe,
1234         .disconnect     = btusb_disconnect,
1235 #ifdef CONFIG_PM
1236         .suspend        = btusb_suspend,
1237         .resume         = btusb_resume,
1238 #endif
1239         .id_table       = btusb_table,
1240         .supports_autosuspend = 1,
1241 };
1242
1243 static int __init btusb_init(void)
1244 {
1245         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1246
1247         return usb_register(&btusb_driver);
1248 }
1249
1250 static void __exit btusb_exit(void)
1251 {
1252         usb_deregister(&btusb_driver);
1253 }
1254
1255 module_init(btusb_init);
1256 module_exit(btusb_exit);
1257
1258 module_param(ignore_dga, bool, 0644);
1259 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1260
1261 module_param(ignore_csr, bool, 0644);
1262 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1263
1264 module_param(ignore_sniffer, bool, 0644);
1265 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1266
1267 module_param(disable_scofix, bool, 0644);
1268 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1269
1270 module_param(force_scofix, bool, 0644);
1271 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1272
1273 module_param(reset, bool, 0644);
1274 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1275
1276 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1277 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1278 MODULE_VERSION(VERSION);
1279 MODULE_LICENSE("GPL");