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         /* Broadcom SoftSailing reporting vendor specific */
  64         { USB_DEVICE(0x0a5c, 0x21e1) },
  65
  66         /* Apple MacBookPro 7,1 */
  67         { USB_DEVICE(0x05ac, 0x8213) },
  68
  69         /* Apple iMac11,1 */
  70         { USB_DEVICE(0x05ac, 0x8215) },
  71
  72         /* Apple MacBookPro6,2 */
  73         { USB_DEVICE(0x05ac, 0x8218) },
  74
  75         /* Apple MacBookAir3,1, MacBookAir3,2 */
  76         { USB_DEVICE(0x05ac, 0x821b) },
  77
  78         /* Apple MacBookAir4,1 */
  79         { USB_DEVICE(0x05ac, 0x821f) },
  80
  81         /* Apple MacBookPro8,2 */
  82         { USB_DEVICE(0x05ac, 0x821a) },
  83
  84         /* Apple MacMini5,1 */
  85         { USB_DEVICE(0x05ac, 0x8281) },
  86
  87         /* AVM BlueFRITZ! USB v2.0 */
  88         { USB_DEVICE(0x057c, 0x3800) },
  89
  90         /* Bluetooth Ultraport Module from IBM */
  91         { USB_DEVICE(0x04bf, 0x030a) },
  92
  93         /* ALPS Modules with non-standard id */
  94         { USB_DEVICE(0x044e, 0x3001) },
  95         { USB_DEVICE(0x044e, 0x3002) },
  96
  97         /* Ericsson with non-standard id */
  98         { USB_DEVICE(0x0bdb, 0x1002) },
  99
 100         /* Canyon CN-BTU1 with HID interfaces */
 101         { USB_DEVICE(0x0c10, 0x0000) },
 102
 103         /* Broadcom BCM20702A0 */
 104         { USB_DEVICE(0x0489, 0xe042) },
 105         { USB_DEVICE(0x413c, 0x8197) },
 106
 107         /* Foxconn - Hon Hai */
 108         { USB_DEVICE(0x0489, 0xe033) },
 109
 110         /*Broadcom devices with vendor specific id */
 111         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
 112
 113         { }     /* Terminating entry */
 114 };
 115
 116 MODULE_DEVICE_TABLE(usb, btusb_table);
 117
 118 static struct usb_device_id blacklist_table[] = {
 119         /* CSR BlueCore devices */
 120         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 121
 122         /* Broadcom BCM2033 without firmware */
 123         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 124
 125         /* Atheros 3011 with sflash firmware */
 126         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 127         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 128         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 129         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 130
 131         /* Atheros AR9285 Malbec with sflash firmware */
 132         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 133
 134         /* Atheros 3012 with sflash firmware */
 135         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 136         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 137         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 141
 142         /* Atheros AR5BBU12 with sflash firmware */
 143         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 144
 145         /* Atheros AR5BBU12 with sflash firmware */
 146         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 147
 148         /* Broadcom BCM2035 */
 149         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 150         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 151         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 152
 153         /* Broadcom BCM2045 */
 154         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 155         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 156
 157         /* IBM/Lenovo ThinkPad with Broadcom chip */
 158         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 159         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 160
 161         /* HP laptop with Broadcom chip */
 162         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 163
 164         /* Dell laptop with Broadcom chip */
 165         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 166
 167         /* Dell Wireless 370 and 410 devices */
 168         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 169         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 170
 171         /* Belkin F8T012 and F8T013 devices */
 172         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 173         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 174
 175         /* Asus WL-BTD202 device */
 176         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 177
 178         /* Kensington Bluetooth USB adapter */
 179         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 180
 181         /* RTX Telecom based adapters with buggy SCO support */
 182         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 183         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 184
 185         /* CONWISE Technology based adapters with buggy SCO support */
 186         { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC },
 187
 188         /* Digianswer devices */
 189         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 190         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 191
 192         /* CSR BlueCore Bluetooth Sniffer */
 193         { USB_DEVICE(0x0a12, 0x0002), .driver_info = BTUSB_SNIFFER },
 194
 195         /* Frontline ComProbe Bluetooth Sniffer */
 196         { USB_DEVICE(0x16d3, 0x0002), .driver_info = BTUSB_SNIFFER },
 197
 198         { }     /* Terminating entry */
 199 };
 200
 201 #define BTUSB_MAX_ISOC_FRAMES   10
 202
 203 #define BTUSB_INTR_RUNNING      0
 204 #define BTUSB_BULK_RUNNING      1
 205 #define BTUSB_ISOC_RUNNING      2
 206 #define BTUSB_SUSPENDING        3
 207 #define BTUSB_DID_ISO_RESUME    4
 208
 209 struct btusb_data {
 210         struct hci_dev       *hdev;
 211         struct usb_device    *udev;
 212         struct usb_interface *intf;
 213         struct usb_interface *isoc;
 214
 215         spinlock_t lock;
 216
 217         unsigned long flags;
 218
 219         struct work_struct work;
 220         struct work_struct waker;
 221
 222         struct usb_anchor tx_anchor;
 223         struct usb_anchor intr_anchor;
 224         struct usb_anchor bulk_anchor;
 225         struct usb_anchor isoc_anchor;
 226         struct usb_anchor deferred;
 227         int tx_in_flight;
 228         spinlock_t txlock;
 229
 230         struct usb_endpoint_descriptor *intr_ep;
 231         struct usb_endpoint_descriptor *bulk_tx_ep;
 232         struct usb_endpoint_descriptor *bulk_rx_ep;
 233         struct usb_endpoint_descriptor *isoc_tx_ep;
 234         struct usb_endpoint_descriptor *isoc_rx_ep;
 235
 236         __u8 cmdreq_type;
 237
 238         unsigned int sco_num;
 239         int isoc_altsetting;
 240         int suspend_count;
 241 };
 242
 243 static int inc_tx(struct btusb_data *data)
 244 {
 245         unsigned long flags;
 246         int rv;
 247
 248         spin_lock_irqsave(&data->txlock, flags);
 249         rv = test_bit(BTUSB_SUSPENDING, &data->flags);
 250         if (!rv)
 251                 data->tx_in_flight++;
 252         spin_unlock_irqrestore(&data->txlock, flags);
 253
 254         return rv;
 255 }
 256
 257 static void btusb_intr_complete(struct urb *urb)
 258 {
 259         struct hci_dev *hdev = urb->context;
 260         struct btusb_data *data = hdev->driver_data;
 261         int err;
 262
 263         BT_DBG("%s urb %p status %d count %d", hdev->name,
 264                                         urb, urb->status, urb->actual_length);
 265
 266         if (!test_bit(HCI_RUNNING, &hdev->flags))
 267                 return;
 268
 269         if (urb->status == 0) {
 270                 hdev->stat.byte_rx += urb->actual_length;
 271
 272                 if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
 273                                                 urb->transfer_buffer,
 274                                                 urb->actual_length) < 0) {
 275                         BT_ERR("%s corrupted event packet", hdev->name);
 276                         hdev->stat.err_rx++;
 277                 }
 278         }
 279
 280         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 281                 return;
 282
 283         usb_mark_last_busy(data->udev);
 284         usb_anchor_urb(urb, &data->intr_anchor);
 285
 286         err = usb_submit_urb(urb, GFP_ATOMIC);
 287         if (err < 0) {
 288                 /* -EPERM: urb is being killed;
 289                  * -ENODEV: device got disconnected */
 290                 if (err != -EPERM && err != -ENODEV)
 291                         BT_ERR("%s urb %p failed to resubmit (%d)",
 292                                                 hdev->name, urb, -err);
 293                 usb_unanchor_urb(urb);
 294         }
 295 }
 296
 297 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 298 {
 299         struct btusb_data *data = hdev->driver_data;
 300         struct urb *urb;
 301         unsigned char *buf;
 302         unsigned int pipe;
 303         int err, size;
 304
 305         BT_DBG("%s", hdev->name);
 306
 307         if (!data->intr_ep)
 308                 return -ENODEV;
 309
 310         urb = usb_alloc_urb(0, mem_flags);
 311         if (!urb)
 312                 return -ENOMEM;
 313
 314         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 315
 316         buf = kmalloc(size, mem_flags);
 317         if (!buf) {
 318                 usb_free_urb(urb);
 319                 return -ENOMEM;
 320         }
 321
 322         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 323
 324         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 325                                                 btusb_intr_complete, hdev,
 326                                                 data->intr_ep->bInterval);
 327
 328         urb->transfer_flags |= URB_FREE_BUFFER;
 329
 330         usb_anchor_urb(urb, &data->intr_anchor);
 331
 332         err = usb_submit_urb(urb, mem_flags);
 333         if (err < 0) {
 334                 BT_ERR("%s urb %p submission failed (%d)",
 335                                                 hdev->name, urb, -err);
 336                 usb_unanchor_urb(urb);
 337         }
 338
 339         usb_free_urb(urb);
 340
 341         return err;
 342 }
 343
 344 static void btusb_bulk_complete(struct urb *urb)
 345 {
 346         struct hci_dev *hdev = urb->context;
 347         struct btusb_data *data = hdev->driver_data;
 348         int err;
 349
 350         BT_DBG("%s urb %p status %d count %d", hdev->name,
 351                                         urb, urb->status, urb->actual_length);
 352
 353         if (!test_bit(HCI_RUNNING, &hdev->flags))
 354                 return;
 355
 356         if (urb->status == 0) {
 357                 hdev->stat.byte_rx += urb->actual_length;
 358
 359                 if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
 360                                                 urb->transfer_buffer,
 361                                                 urb->actual_length) < 0) {
 362                         BT_ERR("%s corrupted ACL packet", hdev->name);
 363                         hdev->stat.err_rx++;
 364                 }
 365         }
 366
 367         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 368                 return;
 369
 370         usb_anchor_urb(urb, &data->bulk_anchor);
 371         usb_mark_last_busy(data->udev);
 372
 373         err = usb_submit_urb(urb, GFP_ATOMIC);
 374         if (err < 0) {
 375                 /* -EPERM: urb is being killed;
 376                  * -ENODEV: device got disconnected */
 377                 if (err != -EPERM && err != -ENODEV)
 378                         BT_ERR("%s urb %p failed to resubmit (%d)",
 379                                                 hdev->name, urb, -err);
 380                 usb_unanchor_urb(urb);
 381         }
 382 }
 383
 384 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 385 {
 386         struct btusb_data *data = hdev->driver_data;
 387         struct urb *urb;
 388         unsigned char *buf;
 389         unsigned int pipe;
 390         int err, size = HCI_MAX_FRAME_SIZE;
 391
 392         BT_DBG("%s", hdev->name);
 393
 394         if (!data->bulk_rx_ep)
 395                 return -ENODEV;
 396
 397         urb = usb_alloc_urb(0, mem_flags);
 398         if (!urb)
 399                 return -ENOMEM;
 400
 401         buf = kmalloc(size, mem_flags);
 402         if (!buf) {
 403                 usb_free_urb(urb);
 404                 return -ENOMEM;
 405         }
 406
 407         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 408
 409         usb_fill_bulk_urb(urb, data->udev, pipe,
 410                                         buf, size, btusb_bulk_complete, hdev);
 411
 412         urb->transfer_flags |= URB_FREE_BUFFER;
 413
 414         usb_mark_last_busy(data->udev);
 415         usb_anchor_urb(urb, &data->bulk_anchor);
 416
 417         err = usb_submit_urb(urb, mem_flags);
 418         if (err < 0) {
 419                 BT_ERR("%s urb %p submission failed (%d)",
 420                                                 hdev->name, urb, -err);
 421                 usb_unanchor_urb(urb);
 422         }
 423
 424         usb_free_urb(urb);
 425
 426         return err;
 427 }
 428
 429 static void btusb_isoc_complete(struct urb *urb)
 430 {
 431         struct hci_dev *hdev = urb->context;
 432         struct btusb_data *data = hdev->driver_data;
 433         int i, err;
 434
 435         BT_DBG("%s urb %p status %d count %d", hdev->name,
 436                                         urb, urb->status, urb->actual_length);
 437
 438         if (!test_bit(HCI_RUNNING, &hdev->flags))
 439                 return;
 440
 441         if (urb->status == 0) {
 442                 for (i = 0; i < urb->number_of_packets; i++) {
 443                         unsigned int offset = urb->iso_frame_desc[i].offset;
 444                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 445
 446                         if (urb->iso_frame_desc[i].status)
 447                                 continue;
 448
 449                         hdev->stat.byte_rx += length;
 450
 451                         if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
 452                                                 urb->transfer_buffer + offset,
 453                                                                 length) < 0) {
 454                                 BT_ERR("%s corrupted SCO packet", hdev->name);
 455                                 hdev->stat.err_rx++;
 456                         }
 457                 }
 458         }
 459
 460         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 461                 return;
 462
 463         usb_anchor_urb(urb, &data->isoc_anchor);
 464
 465         err = usb_submit_urb(urb, GFP_ATOMIC);
 466         if (err < 0) {
 467                 /* -EPERM: urb is being killed;
 468                  * -ENODEV: device got disconnected */
 469                 if (err != -EPERM && err != -ENODEV)
 470                         BT_ERR("%s urb %p failed to resubmit (%d)",
 471                                                 hdev->name, urb, -err);
 472                 usb_unanchor_urb(urb);
 473         }
 474 }
 475
 476 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 477 {
 478         int i, offset = 0;
 479
 480         BT_DBG("len %d mtu %d", len, mtu);
 481
 482         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 483                                         i++, offset += mtu, len -= mtu) {
 484                 urb->iso_frame_desc[i].offset = offset;
 485                 urb->iso_frame_desc[i].length = mtu;
 486         }
 487
 488         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 489                 urb->iso_frame_desc[i].offset = offset;
 490                 urb->iso_frame_desc[i].length = len;
 491                 i++;
 492         }
 493
 494         urb->number_of_packets = i;
 495 }
 496
 497 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 498 {
 499         struct btusb_data *data = hdev->driver_data;
 500         struct urb *urb;
 501         unsigned char *buf;
 502         unsigned int pipe;
 503         int err, size;
 504
 505         BT_DBG("%s", hdev->name);
 506
 507         if (!data->isoc_rx_ep)
 508                 return -ENODEV;
 509
 510         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 511         if (!urb)
 512                 return -ENOMEM;
 513
 514         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 515                                                 BTUSB_MAX_ISOC_FRAMES;
 516
 517         buf = kmalloc(size, mem_flags);
 518         if (!buf) {
 519                 usb_free_urb(urb);
 520                 return -ENOMEM;
 521         }
 522
 523         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 524
 525         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 526                                 hdev, data->isoc_rx_ep->bInterval);
 527
 528         urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 529
 530         __fill_isoc_descriptor(urb, size,
 531                         le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 532
 533         usb_anchor_urb(urb, &data->isoc_anchor);
 534
 535         err = usb_submit_urb(urb, mem_flags);
 536         if (err < 0) {
 537                 BT_ERR("%s urb %p submission failed (%d)",
 538                                                 hdev->name, urb, -err);
 539                 usb_unanchor_urb(urb);
 540         }
 541
 542         usb_free_urb(urb);
 543
 544         return err;
 545 }
 546
 547 static void btusb_tx_complete(struct urb *urb)
 548 {
 549         struct sk_buff *skb = urb->context;
 550         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 551         struct btusb_data *data = hdev->driver_data;
 552
 553         BT_DBG("%s urb %p status %d count %d", hdev->name,
 554                                         urb, urb->status, urb->actual_length);
 555
 556         if (!test_bit(HCI_RUNNING, &hdev->flags))
 557                 goto done;
 558
 559         if (!urb->status)
 560                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 561         else
 562                 hdev->stat.err_tx++;
 563
 564 done:
 565         spin_lock(&data->txlock);
 566         data->tx_in_flight--;
 567         spin_unlock(&data->txlock);
 568
 569         kfree(urb->setup_packet);
 570
 571         kfree_skb(skb);
 572 }
 573
 574 static void btusb_isoc_tx_complete(struct urb *urb)
 575 {
 576         struct sk_buff *skb = urb->context;
 577         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 578
 579         BT_DBG("%s urb %p status %d count %d", hdev->name,
 580                                         urb, urb->status, urb->actual_length);
 581
 582         if (!test_bit(HCI_RUNNING, &hdev->flags))
 583                 goto done;
 584
 585         if (!urb->status)
 586                 hdev->stat.byte_tx += urb->transfer_buffer_length;
 587         else
 588                 hdev->stat.err_tx++;
 589
 590 done:
 591         kfree(urb->setup_packet);
 592
 593         kfree_skb(skb);
 594 }
 595
 596 static int btusb_open(struct hci_dev *hdev)
 597 {
 598         struct btusb_data *data = hdev->driver_data;
 599         int err;
 600
 601         BT_DBG("%s", hdev->name);
 602
 603         err = usb_autopm_get_interface(data->intf);
 604         if (err < 0)
 605                 return err;
 606
 607         data->intf->needs_remote_wakeup = 1;
 608
 609         if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
 610                 goto done;
 611
 612         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
 613                 goto done;
 614
 615         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
 616         if (err < 0)
 617                 goto failed;
 618
 619         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 620         if (err < 0) {
 621                 usb_kill_anchored_urbs(&data->intr_anchor);
 622                 goto failed;
 623         }
 624
 625         set_bit(BTUSB_BULK_RUNNING, &data->flags);
 626         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
 627
 628 done:
 629         usb_autopm_put_interface(data->intf);
 630         return 0;
 631
 632 failed:
 633         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 634         clear_bit(HCI_RUNNING, &hdev->flags);
 635         usb_autopm_put_interface(data->intf);
 636         return err;
 637 }
 638
 639 static void btusb_stop_traffic(struct btusb_data *data)
 640 {
 641         usb_kill_anchored_urbs(&data->intr_anchor);
 642         usb_kill_anchored_urbs(&data->bulk_anchor);
 643         usb_kill_anchored_urbs(&data->isoc_anchor);
 644 }
 645
 646 static int btusb_close(struct hci_dev *hdev)
 647 {
 648         struct btusb_data *data = hdev->driver_data;
 649         int err;
 650
 651         BT_DBG("%s", hdev->name);
 652
 653         if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
 654                 return 0;
 655
 656         cancel_work_sync(&data->work);
 657         cancel_work_sync(&data->waker);
 658
 659         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 660         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
 661         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
 662
 663         btusb_stop_traffic(data);
 664         err = usb_autopm_get_interface(data->intf);
 665         if (err < 0)
 666                 goto failed;
 667
 668         data->intf->needs_remote_wakeup = 0;
 669         usb_autopm_put_interface(data->intf);
 670
 671 failed:
 672         usb_scuttle_anchored_urbs(&data->deferred);
 673         return 0;
 674 }
 675
 676 static int btusb_flush(struct hci_dev *hdev)
 677 {
 678         struct btusb_data *data = hdev->driver_data;
 679
 680         BT_DBG("%s", hdev->name);
 681
 682         usb_kill_anchored_urbs(&data->tx_anchor);
 683
 684         return 0;
 685 }
 686
 687 static int btusb_send_frame(struct sk_buff *skb)
 688 {
 689         struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 690         struct btusb_data *data = hdev->driver_data;
 691         struct usb_ctrlrequest *dr;
 692         struct urb *urb;
 693         unsigned int pipe;
 694         int err;
 695
 696         BT_DBG("%s", hdev->name);
 697
 698         if (!test_bit(HCI_RUNNING, &hdev->flags))
 699                 return -EBUSY;
 700
 701         switch (bt_cb(skb)->pkt_type) {
 702         case HCI_COMMAND_PKT:
 703                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 704                 if (!urb)
 705                         return -ENOMEM;
 706
 707                 dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
 708                 if (!dr) {
 709                         usb_free_urb(urb);
 710                         return -ENOMEM;
 711                 }
 712
 713                 dr->bRequestType = data->cmdreq_type;
 714                 dr->bRequest     = 0;
 715                 dr->wIndex       = 0;
 716                 dr->wValue       = 0;
 717                 dr->wLength      = __cpu_to_le16(skb->len);
 718
 719                 pipe = usb_sndctrlpipe(data->udev, 0x00);
 720
 721                 usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
 722                                 skb->data, skb->len, btusb_tx_complete, skb);
 723
 724                 hdev->stat.cmd_tx++;
 725                 break;
 726
 727         case HCI_ACLDATA_PKT:
 728                 if (!data->bulk_tx_ep)
 729                         return -ENODEV;
 730
 731                 urb = usb_alloc_urb(0, GFP_ATOMIC);
 732                 if (!urb)
 733                         return -ENOMEM;
 734
 735                 pipe = usb_sndbulkpipe(data->udev,
 736                                         data->bulk_tx_ep->bEndpointAddress);
 737
 738                 usb_fill_bulk_urb(urb, data->udev, pipe,
 739                                 skb->data, skb->len, btusb_tx_complete, skb);
 740
 741                 hdev->stat.acl_tx++;
 742                 break;
 743
 744         case HCI_SCODATA_PKT:
 745                 if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
 746                         return -ENODEV;
 747
 748                 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
 749                 if (!urb)
 750                         return -ENOMEM;
 751
 752                 pipe = usb_sndisocpipe(data->udev,
 753                                         data->isoc_tx_ep->bEndpointAddress);
 754
 755                 usb_fill_int_urb(urb, data->udev, pipe,
 756                                 skb->data, skb->len, btusb_isoc_tx_complete,
 757                                 skb, data->isoc_tx_ep->bInterval);
 758
 759                 urb->transfer_flags  = URB_ISO_ASAP;
 760
 761                 __fill_isoc_descriptor(urb, skb->len,
 762                                 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
 763
 764                 hdev->stat.sco_tx++;
 765                 goto skip_waking;
 766
 767         default:
 768                 return -EILSEQ;
 769         }
 770
 771         err = inc_tx(data);
 772         if (err) {
 773                 usb_anchor_urb(urb, &data->deferred);
 774                 schedule_work(&data->waker);
 775                 err = 0;
 776                 goto done;
 777         }
 778
 779 skip_waking:
 780         usb_anchor_urb(urb, &data->tx_anchor);
 781
 782         err = usb_submit_urb(urb, GFP_ATOMIC);
 783         if (err < 0) {
 784                 BT_ERR("%s urb %p submission failed", hdev->name, urb);
 785                 kfree(urb->setup_packet);
 786                 usb_unanchor_urb(urb);
 787         } else {
 788                 usb_mark_last_busy(data->udev);
 789         }
 790
 791 done:
 792         usb_free_urb(urb);
 793         return err;
 794 }
 795
 796 static void btusb_destruct(struct hci_dev *hdev)
 797 {
 798         struct btusb_data *data = hdev->driver_data;
 799
 800         BT_DBG("%s", hdev->name);
 801
 802         kfree(data);
 803 }
 804
 805 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 806 {
 807         struct btusb_data *data = hdev->driver_data;
 808
 809         BT_DBG("%s evt %d", hdev->name, evt);
 810
 811         if (hdev->conn_hash.sco_num != data->sco_num) {
 812                 data->sco_num = hdev->conn_hash.sco_num;
 813                 schedule_work(&data->work);
 814         }
 815 }
 816
 817 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 818 {
 819         struct btusb_data *data = hdev->driver_data;
 820         struct usb_interface *intf = data->isoc;
 821         struct usb_endpoint_descriptor *ep_desc;
 822         int i, err;
 823
 824         if (!data->isoc)
 825                 return -ENODEV;
 826
 827         err = usb_set_interface(data->udev, 1, altsetting);
 828         if (err < 0) {
 829                 BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
 830                 return err;
 831         }
 832
 833         data->isoc_altsetting = altsetting;
 834
 835         data->isoc_tx_ep = NULL;
 836         data->isoc_rx_ep = NULL;
 837
 838         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 839                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 840
 841                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
 842                         data->isoc_tx_ep = ep_desc;
 843                         continue;
 844                 }
 845
 846                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
 847                         data->isoc_rx_ep = ep_desc;
 848                         continue;
 849                 }
 850         }
 851
 852         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
 853                 BT_ERR("%s invalid SCO descriptors", hdev->name);
 854                 return -ENODEV;
 855         }
 856
 857         return 0;
 858 }
 859
 860 static void btusb_work(struct work_struct *work)
 861 {
 862         struct btusb_data *data = container_of(work, struct btusb_data, work);
 863         struct hci_dev *hdev = data->hdev;
 864         int err;
 865
 866         if (hdev->conn_hash.sco_num > 0) {
 867                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 868                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 869                         if (err < 0) {
 870                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 871                                 usb_kill_anchored_urbs(&data->isoc_anchor);
 872                                 return;
 873                         }
 874
 875                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
 876                 }
 877                 if (data->isoc_altsetting != 2) {
 878                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 879                         usb_kill_anchored_urbs(&data->isoc_anchor);
 880
 881                         if (__set_isoc_interface(hdev, 2) < 0)
 882                                 return;
 883                 }
 884
 885                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
 886                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
 887                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 888                         else
 889                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
 890                 }
 891         } else {
 892                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 893                 usb_kill_anchored_urbs(&data->isoc_anchor);
 894
 895                 __set_isoc_interface(hdev, 0);
 896                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
 897                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
 898         }
 899 }
 900
 901 static void btusb_waker(struct work_struct *work)
 902 {
 903         struct btusb_data *data = container_of(work, struct btusb_data, waker);
 904         int err;
 905
 906         err = usb_autopm_get_interface(data->intf);
 907         if (err < 0)
 908                 return;
 909
 910         usb_autopm_put_interface(data->intf);
 911 }
 912
 913 static int btusb_probe(struct usb_interface *intf,
 914                                 const struct usb_device_id *id)
 915 {
 916         struct usb_endpoint_descriptor *ep_desc;
 917         struct btusb_data *data;
 918         struct hci_dev *hdev;
 919         int i, err;
 920
 921         BT_DBG("intf %p id %p", intf, id);
 922
 923         /* interface numbers are hardcoded in the spec */
 924         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 925                 return -ENODEV;
 926
 927         if (!id->driver_info) {
 928                 const struct usb_device_id *match;
 929                 match = usb_match_id(intf, blacklist_table);
 930                 if (match)
 931                         id = match;
 932         }
 933
 934         if (id->driver_info == BTUSB_IGNORE)
 935                 return -ENODEV;
 936
 937         if (ignore_dga && id->driver_info & BTUSB_DIGIANSWER)
 938                 return -ENODEV;
 939
 940         if (ignore_csr && id->driver_info & BTUSB_CSR)
 941                 return -ENODEV;
 942
 943         if (ignore_sniffer && id->driver_info & BTUSB_SNIFFER)
 944                 return -ENODEV;
 945
 946         if (id->driver_info & BTUSB_ATH3012) {
 947                 struct usb_device *udev = interface_to_usbdev(intf);
 948
 949                 /* Old firmware would otherwise let ath3k driver load
 950                  * patch and sysconfig files */
 951                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
 952                         return -ENODEV;
 953         }
 954
 955         data = kzalloc(sizeof(*data), GFP_KERNEL);
 956         if (!data)
 957                 return -ENOMEM;
 958
 959         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
 960                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
 961
 962                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
 963                         data->intr_ep = ep_desc;
 964                         continue;
 965                 }
 966
 967                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
 968                         data->bulk_tx_ep = ep_desc;
 969                         continue;
 970                 }
 971
 972                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
 973                         data->bulk_rx_ep = ep_desc;
 974                         continue;
 975                 }
 976         }
 977
 978         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
 979                 kfree(data);
 980                 return -ENODEV;
 981         }
 982
 983         data->cmdreq_type = USB_TYPE_CLASS;
 984
 985         data->udev = interface_to_usbdev(intf);
 986         data->intf = intf;
 987
 988         spin_lock_init(&data->lock);
 989
 990         INIT_WORK(&data->work, btusb_work);
 991         INIT_WORK(&data->waker, btusb_waker);
 992         spin_lock_init(&data->txlock);
 993
 994         init_usb_anchor(&data->tx_anchor);
 995         init_usb_anchor(&data->intr_anchor);
 996         init_usb_anchor(&data->bulk_anchor);
 997         init_usb_anchor(&data->isoc_anchor);
 998         init_usb_anchor(&data->deferred);
 999
1000         hdev = hci_alloc_dev();
1001         if (!hdev) {
1002                 kfree(data);
1003                 return -ENOMEM;
1004         }
1005
1006         hdev->bus = HCI_USB;
1007         hdev->driver_data = data;
1008
1009         data->hdev = hdev;
1010
1011         SET_HCIDEV_DEV(hdev, &intf->dev);
1012
1013         hdev->open     = btusb_open;
1014         hdev->close    = btusb_close;
1015         hdev->flush    = btusb_flush;
1016         hdev->send     = btusb_send_frame;
1017         hdev->destruct = btusb_destruct;
1018         hdev->notify   = btusb_notify;
1019
1020         hdev->owner = THIS_MODULE;
1021
1022         /* Interface numbers are hardcoded in the specification */
1023         data->isoc = usb_ifnum_to_if(data->udev, 1);
1024
1025         if (!reset)
1026                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1027
1028         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
1029                 if (!disable_scofix)
1030                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
1031         }
1032
1033         if (id->driver_info & BTUSB_BROKEN_ISOC)
1034                 data->isoc = NULL;
1035
1036         if (id->driver_info & BTUSB_DIGIANSWER) {
1037                 data->cmdreq_type = USB_TYPE_VENDOR;
1038                 set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1039         }
1040
1041         if (id->driver_info & BTUSB_CSR) {
1042                 struct usb_device *udev = data->udev;
1043
1044                 /* Old firmware would otherwise execute USB reset */
1045                 if (le16_to_cpu(udev->descriptor.bcdDevice) < 0x117)
1046                         set_bit(HCI_QUIRK_NO_RESET, &hdev->quirks);
1047         }
1048
1049         if (id->driver_info & BTUSB_SNIFFER) {
1050                 struct usb_device *udev = data->udev;
1051
1052                 /* New sniffer firmware has crippled HCI interface */
1053                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
1054                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
1055
1056                 data->isoc = NULL;
1057         }
1058
1059         if (id->driver_info & BTUSB_BCM92035) {
1060                 unsigned char cmd[] = { 0x3b, 0xfc, 0x01, 0x00 };
1061                 struct sk_buff *skb;
1062
1063                 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
1064                 if (skb) {
1065                         memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
1066                         skb_queue_tail(&hdev->driver_init, skb);
1067                 }
1068         }
1069
1070         if (data->isoc) {
1071                 err = usb_driver_claim_interface(&btusb_driver,
1072                                                         data->isoc, data);
1073                 if (err < 0) {
1074                         hci_free_dev(hdev);
1075                         kfree(data);
1076                         return err;
1077                 }
1078         }
1079
1080         err = hci_register_dev(hdev);
1081         if (err < 0) {
1082                 hci_free_dev(hdev);
1083                 kfree(data);
1084                 return err;
1085         }
1086
1087         usb_set_intfdata(intf, data);
1088
1089         return 0;
1090 }
1091
1092 static void btusb_disconnect(struct usb_interface *intf)
1093 {
1094         struct btusb_data *data = usb_get_intfdata(intf);
1095         struct hci_dev *hdev;
1096
1097         BT_DBG("intf %p", intf);
1098
1099         if (!data)
1100                 return;
1101
1102         hdev = data->hdev;
1103
1104         __hci_dev_hold(hdev);
1105
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_dev_put(hdev);
1119
1120         hci_free_dev(hdev);
1121 }
1122
1123 #ifdef CONFIG_PM
1124 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
1125 {
1126         struct btusb_data *data = usb_get_intfdata(intf);
1127
1128         BT_DBG("intf %p", intf);
1129
1130         if (data->suspend_count++)
1131                 return 0;
1132
1133         spin_lock_irq(&data->txlock);
1134         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
1135                 set_bit(BTUSB_SUSPENDING, &data->flags);
1136                 spin_unlock_irq(&data->txlock);
1137         } else {
1138                 spin_unlock_irq(&data->txlock);
1139                 data->suspend_count--;
1140                 return -EBUSY;
1141         }
1142
1143         cancel_work_sync(&data->work);
1144
1145         btusb_stop_traffic(data);
1146         usb_kill_anchored_urbs(&data->tx_anchor);
1147
1148         return 0;
1149 }
1150
1151 static void play_deferred(struct btusb_data *data)
1152 {
1153         struct urb *urb;
1154         int err;
1155
1156         while ((urb = usb_get_from_anchor(&data->deferred))) {
1157                 err = usb_submit_urb(urb, GFP_ATOMIC);
1158                 if (err < 0)
1159                         break;
1160
1161                 data->tx_in_flight++;
1162         }
1163         usb_scuttle_anchored_urbs(&data->deferred);
1164 }
1165
1166 static int btusb_resume(struct usb_interface *intf)
1167 {
1168         struct btusb_data *data = usb_get_intfdata(intf);
1169         struct hci_dev *hdev = data->hdev;
1170         int err = 0;
1171
1172         BT_DBG("intf %p", intf);
1173
1174         if (--data->suspend_count)
1175                 return 0;
1176
1177         if (!test_bit(HCI_RUNNING, &hdev->flags))
1178                 goto done;
1179
1180         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
1181                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
1182                 if (err < 0) {
1183                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1184                         goto failed;
1185                 }
1186         }
1187
1188         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
1189                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
1190                 if (err < 0) {
1191                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1192                         goto failed;
1193                 }
1194
1195                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
1196         }
1197
1198         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1199                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
1200                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1201                 else
1202                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
1203         }
1204
1205         spin_lock_irq(&data->txlock);
1206         play_deferred(data);
1207         clear_bit(BTUSB_SUSPENDING, &data->flags);
1208         spin_unlock_irq(&data->txlock);
1209         schedule_work(&data->work);
1210
1211         return 0;
1212
1213 failed:
1214         usb_scuttle_anchored_urbs(&data->deferred);
1215 done:
1216         spin_lock_irq(&data->txlock);
1217         clear_bit(BTUSB_SUSPENDING, &data->flags);
1218         spin_unlock_irq(&data->txlock);
1219
1220         return err;
1221 }
1222 #endif
1223
1224 static struct usb_driver btusb_driver = {
1225         .name           = "btusb",
1226         .probe          = btusb_probe,
1227         .disconnect     = btusb_disconnect,
1228 #ifdef CONFIG_PM
1229         .suspend        = btusb_suspend,
1230         .resume         = btusb_resume,
1231 #endif
1232         .id_table       = btusb_table,
1233         .supports_autosuspend = 1,
1234 };
1235
1236 static int __init btusb_init(void)
1237 {
1238         BT_INFO("Generic Bluetooth USB driver ver %s", VERSION);
1239
1240         return usb_register(&btusb_driver);
1241 }
1242
1243 static void __exit btusb_exit(void)
1244 {
1245         usb_deregister(&btusb_driver);
1246 }
1247
1248 module_init(btusb_init);
1249 module_exit(btusb_exit);
1250
1251 module_param(ignore_dga, bool, 0644);
1252 MODULE_PARM_DESC(ignore_dga, "Ignore devices with id 08fd:0001");
1253
1254 module_param(ignore_csr, bool, 0644);
1255 MODULE_PARM_DESC(ignore_csr, "Ignore devices with id 0a12:0001");
1256
1257 module_param(ignore_sniffer, bool, 0644);
1258 MODULE_PARM_DESC(ignore_sniffer, "Ignore devices with id 0a12:0002");
1259
1260 module_param(disable_scofix, bool, 0644);
1261 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
1262
1263 module_param(force_scofix, bool, 0644);
1264 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
1265
1266 module_param(reset, bool, 0644);
1267 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
1268
1269 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
1270 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
1271 MODULE_VERSION(VERSION);
1272 MODULE_LICENSE("GPL");