drivers/bluetooth/ath3k.c

   1 /*
   2  * Copyright (c) 2008-2009 Atheros Communications Inc.
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  */
  19
  20
  21 #include <linux/module.h>
  22 #include <linux/kernel.h>
  23 #include <linux/init.h>
  24 #include <linux/slab.h>
  25 #include <linux/types.h>
  26 #include <linux/errno.h>
  27 #include <linux/device.h>
  28 #include <linux/firmware.h>
  29 #include <linux/usb.h>
  30 #include <net/bluetooth/bluetooth.h>
  31
  32 #define VERSION "1.0"
  33
  34 #define ATH3K_DNLOAD                            0x01
  35 #define ATH3K_GETSTATE                          0x05
  36 #define ATH3K_SET_NORMAL_MODE                   0x07
  37 #define ATH3K_GETVERSION                        0x09
  38 #define USB_REG_SWITCH_VID_PID                  0x0a
  39
  40 #define ATH3K_MODE_MASK                         0x3F
  41 #define ATH3K_NORMAL_MODE                       0x0E
  42
  43 #define ATH3K_PATCH_UPDATE                      0x80
  44 #define ATH3K_SYSCFG_UPDATE                     0x40
  45
  46 #define ATH3K_XTAL_FREQ_26M                     0x00
  47 #define ATH3K_XTAL_FREQ_40M                     0x01
  48 #define ATH3K_XTAL_FREQ_19P2                    0x02
  49 #define ATH3K_NAME_LEN                          0xFF
  50
  51 struct ath3k_version {
  52         unsigned int    rom_version;
  53         unsigned int    build_version;
  54         unsigned int    ram_version;
  55         unsigned char   ref_clock;
  56         unsigned char   reserved[0x07];
  57 };
  58
  59 static struct usb_device_id ath3k_table[] = {
  60         /* Atheros AR3011 */
  61         { USB_DEVICE(0x0CF3, 0x3000) },
  62
  63         /* Atheros AR3011 with sflash firmware*/
  64         { USB_DEVICE(0x0489, 0xE027) },
  65         { USB_DEVICE(0x0489, 0xE03D) },
  66         { USB_DEVICE(0x04F2, 0xAFF1) },
  67         { USB_DEVICE(0x0930, 0x0215) },
  68         { USB_DEVICE(0x0CF3, 0x3002) },
  69         { USB_DEVICE(0x0CF3, 0xE019) },
  70         { USB_DEVICE(0x13d3, 0x3304) },
  71
  72         /* Atheros AR9285 Malbec with sflash firmware */
  73         { USB_DEVICE(0x03F0, 0x311D) },
  74
  75         /* Atheros AR3012 with sflash firmware*/
  76         { USB_DEVICE(0x0489, 0xe04d) },
  77         { USB_DEVICE(0x0489, 0xe04e) },
  78         { USB_DEVICE(0x0489, 0xe057) },
  79         { USB_DEVICE(0x0489, 0xe056) },
  80         { USB_DEVICE(0x0489, 0xe05f) },
  81         { USB_DEVICE(0x0489, 0xe076) },
  82         { USB_DEVICE(0x0489, 0xe078) },
  83         { USB_DEVICE(0x0489, 0xe095) },
  84         { USB_DEVICE(0x04c5, 0x1330) },
  85         { USB_DEVICE(0x04CA, 0x3004) },
  86         { USB_DEVICE(0x04CA, 0x3005) },
  87         { USB_DEVICE(0x04CA, 0x3006) },
  88         { USB_DEVICE(0x04CA, 0x3007) },
  89         { USB_DEVICE(0x04CA, 0x3008) },
  90         { USB_DEVICE(0x04CA, 0x300b) },
  91         { USB_DEVICE(0x04CA, 0x300f) },
  92         { USB_DEVICE(0x04CA, 0x3010) },
  93         { USB_DEVICE(0x04CA, 0x3014) },
  94         { USB_DEVICE(0x04CA, 0x3018) },
  95         { USB_DEVICE(0x0930, 0x0219) },
  96         { USB_DEVICE(0x0930, 0x021c) },
  97         { USB_DEVICE(0x0930, 0x0220) },
  98         { USB_DEVICE(0x0930, 0x0227) },
  99         { USB_DEVICE(0x0b05, 0x17d0) },
 100         { USB_DEVICE(0x0CF3, 0x0036) },
 101         { USB_DEVICE(0x0CF3, 0x3004) },
 102         { USB_DEVICE(0x0CF3, 0x3008) },
 103         { USB_DEVICE(0x0CF3, 0x311D) },
 104         { USB_DEVICE(0x0CF3, 0x311E) },
 105         { USB_DEVICE(0x0CF3, 0x311F) },
 106         { USB_DEVICE(0x0cf3, 0x3121) },
 107         { USB_DEVICE(0x0CF3, 0x817a) },
 108         { USB_DEVICE(0x0CF3, 0x817b) },
 109         { USB_DEVICE(0x0cf3, 0xe003) },
 110         { USB_DEVICE(0x0CF3, 0xE004) },
 111         { USB_DEVICE(0x0CF3, 0xE005) },
 112         { USB_DEVICE(0x13d3, 0x3362) },
 113         { USB_DEVICE(0x13d3, 0x3375) },
 114         { USB_DEVICE(0x13d3, 0x3393) },
 115         { USB_DEVICE(0x13d3, 0x3395) },
 116         { USB_DEVICE(0x13d3, 0x3402) },
 117         { USB_DEVICE(0x13d3, 0x3408) },
 118         { USB_DEVICE(0x13d3, 0x3423) },
 119         { USB_DEVICE(0x13d3, 0x3432) },
 120         { USB_DEVICE(0x13d3, 0x3472) },
 121         { USB_DEVICE(0x13d3, 0x3474) },
 122         { USB_DEVICE(0x13d3, 0x3487) },
 123         { USB_DEVICE(0x13d3, 0x3490) },
 124
 125         /* Atheros AR5BBU12 with sflash firmware */
 126         { USB_DEVICE(0x0489, 0xE02C) },
 127
 128         /* Atheros AR5BBU22 with sflash firmware */
 129         { USB_DEVICE(0x0489, 0xE036) },
 130         { USB_DEVICE(0x0489, 0xE03C) },
 131
 132         { }     /* Terminating entry */
 133 };
 134
 135 MODULE_DEVICE_TABLE(usb, ath3k_table);
 136
 137 #define BTUSB_ATH3012           0x80
 138 /* This table is to load patch and sysconfig files
 139  * for AR3012 */
 140 static struct usb_device_id ath3k_blist_tbl[] = {
 141
 142         /* Atheros AR3012 with sflash firmware*/
 143         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 177         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 178         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 179         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 180         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 181         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 182         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 183         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 184         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 185         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 186         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 187         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 188         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 189         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 190         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 191
 192         /* Atheros AR5BBU22 with sflash firmware */
 193         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 194         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 195
 196         { }     /* Terminating entry */
 197 };
 198
 199 #define USB_REQ_DFU_DNLOAD      1
 200 #define BULK_SIZE               4096
 201 #define FW_HDR_SIZE             20
 202 #define TIMEGAP_USEC_MIN        50
 203 #define TIMEGAP_USEC_MAX        100
 204
 205 static int ath3k_load_firmware(struct usb_device *udev,
 206                                 const struct firmware *firmware)
 207 {
 208         u8 *send_buf;
 209         int err, pipe, len, size, sent = 0;
 210         int count = firmware->size;
 211
 212         BT_DBG("udev %p", udev);
 213
 214         pipe = usb_sndctrlpipe(udev, 0);
 215
 216         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 217         if (!send_buf) {
 218                 BT_ERR("Can't allocate memory chunk for firmware");
 219                 return -ENOMEM;
 220         }
 221
 222         memcpy(send_buf, firmware->data, 20);
 223         if ((err = usb_control_msg(udev, pipe,
 224                                 USB_REQ_DFU_DNLOAD,
 225                                 USB_TYPE_VENDOR, 0, 0,
 226                                 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
 227                 BT_ERR("Can't change to loading configuration err");
 228                 goto error;
 229         }
 230         sent += 20;
 231         count -= 20;
 232
 233         while (count) {
 234                 /* workaround the compatibility issue with xHCI controller*/
 235                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 236
 237                 size = min_t(uint, count, BULK_SIZE);
 238                 pipe = usb_sndbulkpipe(udev, 0x02);
 239                 memcpy(send_buf, firmware->data + sent, size);
 240
 241                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 242                                         &len, 3000);
 243
 244                 if (err || (len != size)) {
 245                         BT_ERR("Error in firmware loading err = %d,"
 246                                 "len = %d, size = %d", err, len, size);
 247                         goto error;
 248                 }
 249
 250                 sent  += size;
 251                 count -= size;
 252         }
 253
 254 error:
 255         kfree(send_buf);
 256         return err;
 257 }
 258
 259 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 260 {
 261         int pipe = 0;
 262
 263         pipe = usb_rcvctrlpipe(udev, 0);
 264         return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 265                         USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 266                         state, 0x01, USB_CTRL_SET_TIMEOUT);
 267 }
 268
 269 static int ath3k_get_version(struct usb_device *udev,
 270                         struct ath3k_version *version)
 271 {
 272         int pipe = 0;
 273
 274         pipe = usb_rcvctrlpipe(udev, 0);
 275         return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 276                         USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
 277                         sizeof(struct ath3k_version),
 278                         USB_CTRL_SET_TIMEOUT);
 279 }
 280
 281 static int ath3k_load_fwfile(struct usb_device *udev,
 282                 const struct firmware *firmware)
 283 {
 284         u8 *send_buf;
 285         int err, pipe, len, size, count, sent = 0;
 286         int ret;
 287
 288         count = firmware->size;
 289
 290         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 291         if (!send_buf) {
 292                 BT_ERR("Can't allocate memory chunk for firmware");
 293                 return -ENOMEM;
 294         }
 295
 296         size = min_t(uint, count, FW_HDR_SIZE);
 297         memcpy(send_buf, firmware->data, size);
 298
 299         pipe = usb_sndctrlpipe(udev, 0);
 300         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 301                         USB_TYPE_VENDOR, 0, 0, send_buf,
 302                         size, USB_CTRL_SET_TIMEOUT);
 303         if (ret < 0) {
 304                 BT_ERR("Can't change to loading configuration err");
 305                 kfree(send_buf);
 306                 return ret;
 307         }
 308
 309         sent += size;
 310         count -= size;
 311
 312         while (count) {
 313                 /* workaround the compatibility issue with xHCI controller*/
 314                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 315
 316                 size = min_t(uint, count, BULK_SIZE);
 317                 pipe = usb_sndbulkpipe(udev, 0x02);
 318
 319                 memcpy(send_buf, firmware->data + sent, size);
 320
 321                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 322                                         &len, 3000);
 323                 if (err || (len != size)) {
 324                         BT_ERR("Error in firmware loading err = %d,"
 325                                 "len = %d, size = %d", err, len, size);
 326                         kfree(send_buf);
 327                         return err;
 328                 }
 329                 sent  += size;
 330                 count -= size;
 331         }
 332
 333         kfree(send_buf);
 334         return 0;
 335 }
 336
 337 static int ath3k_switch_pid(struct usb_device *udev)
 338 {
 339         int pipe = 0;
 340
 341         pipe = usb_sndctrlpipe(udev, 0);
 342         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 343                         USB_TYPE_VENDOR, 0, 0,
 344                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 345 }
 346
 347 static int ath3k_set_normal_mode(struct usb_device *udev)
 348 {
 349         unsigned char fw_state;
 350         int pipe = 0, ret;
 351
 352         ret = ath3k_get_state(udev, &fw_state);
 353         if (ret < 0) {
 354                 BT_ERR("Can't get state to change to normal mode err");
 355                 return ret;
 356         }
 357
 358         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 359                 BT_DBG("firmware was already in normal mode");
 360                 return 0;
 361         }
 362
 363         pipe = usb_sndctrlpipe(udev, 0);
 364         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 365                         USB_TYPE_VENDOR, 0, 0,
 366                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 367 }
 368
 369 static int ath3k_load_patch(struct usb_device *udev)
 370 {
 371         unsigned char fw_state;
 372         char filename[ATH3K_NAME_LEN] = {0};
 373         const struct firmware *firmware;
 374         struct ath3k_version fw_version, pt_version;
 375         int ret;
 376
 377         ret = ath3k_get_state(udev, &fw_state);
 378         if (ret < 0) {
 379                 BT_ERR("Can't get state to change to load ram patch err");
 380                 return ret;
 381         }
 382
 383         if (fw_state & ATH3K_PATCH_UPDATE) {
 384                 BT_DBG("Patch was already downloaded");
 385                 return 0;
 386         }
 387
 388         ret = ath3k_get_version(udev, &fw_version);
 389         if (ret < 0) {
 390                 BT_ERR("Can't get version to change to load ram patch err");
 391                 return ret;
 392         }
 393
 394         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 395                 fw_version.rom_version);
 396
 397         ret = request_firmware(&firmware, filename, &udev->dev);
 398         if (ret < 0) {
 399                 BT_ERR("Patch file not found %s", filename);
 400                 return ret;
 401         }
 402
 403         pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
 404         pt_version.build_version = *(int *)
 405                 (firmware->data + firmware->size - 4);
 406
 407         if ((pt_version.rom_version != fw_version.rom_version) ||
 408                 (pt_version.build_version <= fw_version.build_version)) {
 409                 BT_ERR("Patch file version did not match with firmware");
 410                 release_firmware(firmware);
 411                 return -EINVAL;
 412         }
 413
 414         ret = ath3k_load_fwfile(udev, firmware);
 415         release_firmware(firmware);
 416
 417         return ret;
 418 }
 419
 420 static int ath3k_load_syscfg(struct usb_device *udev)
 421 {
 422         unsigned char fw_state;
 423         char filename[ATH3K_NAME_LEN] = {0};
 424         const struct firmware *firmware;
 425         struct ath3k_version fw_version;
 426         int clk_value, ret;
 427
 428         ret = ath3k_get_state(udev, &fw_state);
 429         if (ret < 0) {
 430                 BT_ERR("Can't get state to change to load configration err");
 431                 return -EBUSY;
 432         }
 433
 434         ret = ath3k_get_version(udev, &fw_version);
 435         if (ret < 0) {
 436                 BT_ERR("Can't get version to change to load ram patch err");
 437                 return ret;
 438         }
 439
 440         switch (fw_version.ref_clock) {
 441
 442         case ATH3K_XTAL_FREQ_26M:
 443                 clk_value = 26;
 444                 break;
 445         case ATH3K_XTAL_FREQ_40M:
 446                 clk_value = 40;
 447                 break;
 448         case ATH3K_XTAL_FREQ_19P2:
 449                 clk_value = 19;
 450                 break;
 451         default:
 452                 clk_value = 0;
 453                 break;
 454         }
 455
 456         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 457                 fw_version.rom_version, clk_value, ".dfu");
 458
 459         ret = request_firmware(&firmware, filename, &udev->dev);
 460         if (ret < 0) {
 461                 BT_ERR("Configuration file not found %s", filename);
 462                 return ret;
 463         }
 464
 465         ret = ath3k_load_fwfile(udev, firmware);
 466         release_firmware(firmware);
 467
 468         return ret;
 469 }
 470
 471 static int ath3k_probe(struct usb_interface *intf,
 472                         const struct usb_device_id *id)
 473 {
 474         const struct firmware *firmware;
 475         struct usb_device *udev = interface_to_usbdev(intf);
 476         int ret;
 477
 478         BT_DBG("intf %p id %p", intf, id);
 479
 480         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 481                 return -ENODEV;
 482
 483         /* match device ID in ath3k blacklist table */
 484         if (!id->driver_info) {
 485                 const struct usb_device_id *match;
 486                 match = usb_match_id(intf, ath3k_blist_tbl);
 487                 if (match)
 488                         id = match;
 489         }
 490
 491         /* load patch and sysconfig files for AR3012 */
 492         if (id->driver_info & BTUSB_ATH3012) {
 493
 494                 /* New firmware with patch and sysconfig files already loaded */
 495                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 496                         return -ENODEV;
 497
 498                 ret = ath3k_load_patch(udev);
 499                 if (ret < 0) {
 500                         BT_ERR("Loading patch file failed");
 501                         return ret;
 502                 }
 503                 ret = ath3k_load_syscfg(udev);
 504                 if (ret < 0) {
 505                         BT_ERR("Loading sysconfig file failed");
 506                         return ret;
 507                 }
 508                 ret = ath3k_set_normal_mode(udev);
 509                 if (ret < 0) {
 510                         BT_ERR("Set normal mode failed");
 511                         return ret;
 512                 }
 513                 ath3k_switch_pid(udev);
 514                 return 0;
 515         }
 516
 517         if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
 518                 BT_ERR("Error loading firmware");
 519                 return -EIO;
 520         }
 521
 522         ret = ath3k_load_firmware(udev, firmware);
 523         release_firmware(firmware);
 524
 525         return ret;
 526 }
 527
 528 static void ath3k_disconnect(struct usb_interface *intf)
 529 {
 530         BT_DBG("ath3k_disconnect intf %p", intf);
 531 }
 532
 533 static struct usb_driver ath3k_driver = {
 534         .name           = "ath3k",
 535         .probe          = ath3k_probe,
 536         .disconnect     = ath3k_disconnect,
 537         .id_table       = ath3k_table,
 538 };
 539
 540 static int __init ath3k_init(void)
 541 {
 542         BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
 543         return usb_register(&ath3k_driver);
 544 }
 545
 546 static void __exit ath3k_exit(void)
 547 {
 548         usb_deregister(&ath3k_driver);
 549 }
 550
 551 module_init(ath3k_init);
 552 module_exit(ath3k_exit);
 553
 554 MODULE_AUTHOR("Atheros Communications");
 555 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 556 MODULE_VERSION(VERSION);
 557 MODULE_LICENSE("GPL");
 558 MODULE_FIRMWARE("ath3k-1.fw");