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 <asm/unaligned.h>
  31 #include <net/bluetooth/bluetooth.h>
  32
  33 #define VERSION "1.0"
  34 #define ATH3K_FIRMWARE  "ath3k-1.fw"
  35
  36 #define ATH3K_DNLOAD                            0x01
  37 #define ATH3K_GETSTATE                          0x05
  38 #define ATH3K_SET_NORMAL_MODE                   0x07
  39 #define ATH3K_GETVERSION                        0x09
  40 #define USB_REG_SWITCH_VID_PID                  0x0a
  41
  42 #define ATH3K_MODE_MASK                         0x3F
  43 #define ATH3K_NORMAL_MODE                       0x0E
  44
  45 #define ATH3K_PATCH_UPDATE                      0x80
  46 #define ATH3K_SYSCFG_UPDATE                     0x40
  47
  48 #define ATH3K_XTAL_FREQ_26M                     0x00
  49 #define ATH3K_XTAL_FREQ_40M                     0x01
  50 #define ATH3K_XTAL_FREQ_19P2                    0x02
  51 #define ATH3K_NAME_LEN                          0xFF
  52
  53 struct ath3k_version {
  54         __le32  rom_version;
  55         __le32  build_version;
  56         __le32  ram_version;
  57         __u8    ref_clock;
  58         __u8    reserved[7];
  59 } __packed;
  60
  61 static const struct usb_device_id ath3k_table[] = {
  62         /* Atheros AR3011 */
  63         { USB_DEVICE(0x0CF3, 0x3000) },
  64
  65         /* Atheros AR3011 with sflash firmware*/
  66         { USB_DEVICE(0x0489, 0xE027) },
  67         { USB_DEVICE(0x0489, 0xE03D) },
  68         { USB_DEVICE(0x04F2, 0xAFF1) },
  69         { USB_DEVICE(0x0930, 0x0215) },
  70         { USB_DEVICE(0x0CF3, 0x3002) },
  71         { USB_DEVICE(0x0CF3, 0xE019) },
  72         { USB_DEVICE(0x13d3, 0x3304) },
  73
  74         /* Atheros AR9285 Malbec with sflash firmware */
  75         { USB_DEVICE(0x03F0, 0x311D) },
  76
  77         /* Atheros AR3012 with sflash firmware*/
  78         { USB_DEVICE(0x0489, 0xe04d) },
  79         { USB_DEVICE(0x0489, 0xe04e) },
  80         { USB_DEVICE(0x0489, 0xe057) },
  81         { USB_DEVICE(0x0489, 0xe056) },
  82         { USB_DEVICE(0x0489, 0xe05f) },
  83         { USB_DEVICE(0x0489, 0xe076) },
  84         { USB_DEVICE(0x0489, 0xe078) },
  85         { USB_DEVICE(0x04c5, 0x1330) },
  86         { USB_DEVICE(0x04CA, 0x3004) },
  87         { USB_DEVICE(0x04CA, 0x3005) },
  88         { USB_DEVICE(0x04CA, 0x3006) },
  89         { USB_DEVICE(0x04CA, 0x3007) },
  90         { USB_DEVICE(0x04CA, 0x3008) },
  91         { USB_DEVICE(0x04CA, 0x300b) },
  92         { USB_DEVICE(0x04CA, 0x300f) },
  93         { USB_DEVICE(0x04CA, 0x3010) },
  94         { USB_DEVICE(0x0930, 0x0219) },
  95         { USB_DEVICE(0x0930, 0x0220) },
  96         { USB_DEVICE(0x0930, 0x0227) },
  97         { USB_DEVICE(0x0b05, 0x17d0) },
  98         { USB_DEVICE(0x0CF3, 0x0036) },
  99         { USB_DEVICE(0x0CF3, 0x3004) },
 100         { USB_DEVICE(0x0CF3, 0x3008) },
 101         { USB_DEVICE(0x0CF3, 0x311D) },
 102         { USB_DEVICE(0x0CF3, 0x311E) },
 103         { USB_DEVICE(0x0CF3, 0x311F) },
 104         { USB_DEVICE(0x0cf3, 0x3121) },
 105         { USB_DEVICE(0x0CF3, 0x817a) },
 106         { USB_DEVICE(0x0cf3, 0xe003) },
 107         { USB_DEVICE(0x0CF3, 0xE004) },
 108         { USB_DEVICE(0x0CF3, 0xE005) },
 109         { USB_DEVICE(0x0CF3, 0xE006) },
 110         { USB_DEVICE(0x13d3, 0x3362) },
 111         { USB_DEVICE(0x13d3, 0x3375) },
 112         { USB_DEVICE(0x13d3, 0x3393) },
 113         { USB_DEVICE(0x13d3, 0x3402) },
 114         { USB_DEVICE(0x13d3, 0x3408) },
 115         { USB_DEVICE(0x13d3, 0x3423) },
 116         { USB_DEVICE(0x13d3, 0x3432) },
 117         { USB_DEVICE(0x13d3, 0x3474) },
 118
 119         /* Atheros AR5BBU12 with sflash firmware */
 120         { USB_DEVICE(0x0489, 0xE02C) },
 121
 122         /* Atheros AR5BBU22 with sflash firmware */
 123         { USB_DEVICE(0x0489, 0xE036) },
 124         { USB_DEVICE(0x0489, 0xE03C) },
 125
 126         { }     /* Terminating entry */
 127 };
 128
 129 MODULE_DEVICE_TABLE(usb, ath3k_table);
 130
 131 #define BTUSB_ATH3012           0x80
 132 /* This table is to load patch and sysconfig files
 133  * for AR3012 */
 134 static const struct usb_device_id ath3k_blist_tbl[] = {
 135
 136         /* Atheros AR3012 with sflash firmware*/
 137         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 177
 178         /* Atheros AR5BBU22 with sflash firmware */
 179         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 180         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 181
 182         { }     /* Terminating entry */
 183 };
 184
 185 #define USB_REQ_DFU_DNLOAD      1
 186 #define BULK_SIZE               4096
 187 #define FW_HDR_SIZE             20
 188 #define TIMEGAP_USEC_MIN        50
 189 #define TIMEGAP_USEC_MAX        100
 190
 191 static int ath3k_load_firmware(struct usb_device *udev,
 192                                 const struct firmware *firmware)
 193 {
 194         u8 *send_buf;
 195         int err, pipe, len, size, sent = 0;
 196         int count = firmware->size;
 197
 198         BT_DBG("udev %p", udev);
 199
 200         pipe = usb_sndctrlpipe(udev, 0);
 201
 202         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 203         if (!send_buf) {
 204                 BT_ERR("Can't allocate memory chunk for firmware");
 205                 return -ENOMEM;
 206         }
 207
 208         memcpy(send_buf, firmware->data, 20);
 209         err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
 210                               0, 0, send_buf, 20, USB_CTRL_SET_TIMEOUT);
 211         if (err < 0) {
 212                 BT_ERR("Can't change to loading configuration err");
 213                 goto error;
 214         }
 215         sent += 20;
 216         count -= 20;
 217
 218         pipe = usb_sndbulkpipe(udev, 0x02);
 219
 220         while (count) {
 221                 /* workaround the compatibility issue with xHCI controller*/
 222                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 223
 224                 size = min_t(uint, count, BULK_SIZE);
 225                 memcpy(send_buf, firmware->data + sent, size);
 226
 227                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 228                                         &len, 3000);
 229
 230                 if (err || (len != size)) {
 231                         BT_ERR("Error in firmware loading err = %d,"
 232                                 "len = %d, size = %d", err, len, size);
 233                         goto error;
 234                 }
 235
 236                 sent  += size;
 237                 count -= size;
 238         }
 239
 240 error:
 241         kfree(send_buf);
 242         return err;
 243 }
 244
 245 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 246 {
 247         int ret, pipe = 0;
 248         char *buf;
 249
 250         buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 251         if (!buf)
 252                 return -ENOMEM;
 253
 254         pipe = usb_rcvctrlpipe(udev, 0);
 255         ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 256                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 257                               buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
 258
 259         *state = *buf;
 260         kfree(buf);
 261
 262         return ret;
 263 }
 264
 265 static int ath3k_get_version(struct usb_device *udev,
 266                         struct ath3k_version *version)
 267 {
 268         int ret, pipe = 0;
 269         struct ath3k_version *buf;
 270         const int size = sizeof(*buf);
 271
 272         buf = kmalloc(size, GFP_KERNEL);
 273         if (!buf)
 274                 return -ENOMEM;
 275
 276         pipe = usb_rcvctrlpipe(udev, 0);
 277         ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 278                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 279                               buf, size, USB_CTRL_SET_TIMEOUT);
 280
 281         memcpy(version, buf, size);
 282         kfree(buf);
 283
 284         return ret;
 285 }
 286
 287 static int ath3k_load_fwfile(struct usb_device *udev,
 288                 const struct firmware *firmware)
 289 {
 290         u8 *send_buf;
 291         int err, pipe, len, size, count, sent = 0;
 292         int ret;
 293
 294         count = firmware->size;
 295
 296         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 297         if (!send_buf) {
 298                 BT_ERR("Can't allocate memory chunk for firmware");
 299                 return -ENOMEM;
 300         }
 301
 302         size = min_t(uint, count, FW_HDR_SIZE);
 303         memcpy(send_buf, firmware->data, size);
 304
 305         pipe = usb_sndctrlpipe(udev, 0);
 306         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 307                         USB_TYPE_VENDOR, 0, 0, send_buf,
 308                         size, USB_CTRL_SET_TIMEOUT);
 309         if (ret < 0) {
 310                 BT_ERR("Can't change to loading configuration err");
 311                 kfree(send_buf);
 312                 return ret;
 313         }
 314
 315         sent += size;
 316         count -= size;
 317
 318         pipe = usb_sndbulkpipe(udev, 0x02);
 319
 320         while (count) {
 321                 /* workaround the compatibility issue with xHCI controller*/
 322                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 323
 324                 size = min_t(uint, count, BULK_SIZE);
 325                 memcpy(send_buf, firmware->data + sent, size);
 326
 327                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 328                                         &len, 3000);
 329                 if (err || (len != size)) {
 330                         BT_ERR("Error in firmware loading err = %d,"
 331                                 "len = %d, size = %d", err, len, size);
 332                         kfree(send_buf);
 333                         return err;
 334                 }
 335                 sent  += size;
 336                 count -= size;
 337         }
 338
 339         kfree(send_buf);
 340         return 0;
 341 }
 342
 343 static int ath3k_switch_pid(struct usb_device *udev)
 344 {
 345         int pipe = 0;
 346
 347         pipe = usb_sndctrlpipe(udev, 0);
 348         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 349                         USB_TYPE_VENDOR, 0, 0,
 350                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 351 }
 352
 353 static int ath3k_set_normal_mode(struct usb_device *udev)
 354 {
 355         unsigned char fw_state;
 356         int pipe = 0, ret;
 357
 358         ret = ath3k_get_state(udev, &fw_state);
 359         if (ret < 0) {
 360                 BT_ERR("Can't get state to change to normal mode err");
 361                 return ret;
 362         }
 363
 364         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 365                 BT_DBG("firmware was already in normal mode");
 366                 return 0;
 367         }
 368
 369         pipe = usb_sndctrlpipe(udev, 0);
 370         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 371                         USB_TYPE_VENDOR, 0, 0,
 372                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 373 }
 374
 375 static int ath3k_load_patch(struct usb_device *udev)
 376 {
 377         unsigned char fw_state;
 378         char filename[ATH3K_NAME_LEN] = {0};
 379         const struct firmware *firmware;
 380         struct ath3k_version fw_version;
 381         __u32 pt_rom_version, pt_build_version;
 382         int ret;
 383
 384         ret = ath3k_get_state(udev, &fw_state);
 385         if (ret < 0) {
 386                 BT_ERR("Can't get state to change to load ram patch err");
 387                 return ret;
 388         }
 389
 390         if (fw_state & ATH3K_PATCH_UPDATE) {
 391                 BT_DBG("Patch was already downloaded");
 392                 return 0;
 393         }
 394
 395         ret = ath3k_get_version(udev, &fw_version);
 396         if (ret < 0) {
 397                 BT_ERR("Can't get version to change to load ram patch err");
 398                 return ret;
 399         }
 400
 401         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 402                  le32_to_cpu(fw_version.rom_version));
 403
 404         ret = request_firmware(&firmware, filename, &udev->dev);
 405         if (ret < 0) {
 406                 BT_ERR("Patch file not found %s", filename);
 407                 return ret;
 408         }
 409
 410         pt_rom_version = get_unaligned_le32(firmware->data +
 411                                             firmware->size - 8);
 412         pt_build_version = get_unaligned_le32(firmware->data +
 413                                               firmware->size - 4);
 414
 415         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
 416             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
 417                 BT_ERR("Patch file version did not match with firmware");
 418                 release_firmware(firmware);
 419                 return -EINVAL;
 420         }
 421
 422         ret = ath3k_load_fwfile(udev, firmware);
 423         release_firmware(firmware);
 424
 425         return ret;
 426 }
 427
 428 static int ath3k_load_syscfg(struct usb_device *udev)
 429 {
 430         unsigned char fw_state;
 431         char filename[ATH3K_NAME_LEN] = {0};
 432         const struct firmware *firmware;
 433         struct ath3k_version fw_version;
 434         int clk_value, ret;
 435
 436         ret = ath3k_get_state(udev, &fw_state);
 437         if (ret < 0) {
 438                 BT_ERR("Can't get state to change to load configuration err");
 439                 return -EBUSY;
 440         }
 441
 442         ret = ath3k_get_version(udev, &fw_version);
 443         if (ret < 0) {
 444                 BT_ERR("Can't get version to change to load ram patch err");
 445                 return ret;
 446         }
 447
 448         switch (fw_version.ref_clock) {
 449
 450         case ATH3K_XTAL_FREQ_26M:
 451                 clk_value = 26;
 452                 break;
 453         case ATH3K_XTAL_FREQ_40M:
 454                 clk_value = 40;
 455                 break;
 456         case ATH3K_XTAL_FREQ_19P2:
 457                 clk_value = 19;
 458                 break;
 459         default:
 460                 clk_value = 0;
 461                 break;
 462         }
 463
 464         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 465                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
 466
 467         ret = request_firmware(&firmware, filename, &udev->dev);
 468         if (ret < 0) {
 469                 BT_ERR("Configuration file not found %s", filename);
 470                 return ret;
 471         }
 472
 473         ret = ath3k_load_fwfile(udev, firmware);
 474         release_firmware(firmware);
 475
 476         return ret;
 477 }
 478
 479 static int ath3k_probe(struct usb_interface *intf,
 480                         const struct usb_device_id *id)
 481 {
 482         const struct firmware *firmware;
 483         struct usb_device *udev = interface_to_usbdev(intf);
 484         int ret;
 485
 486         BT_DBG("intf %p id %p", intf, id);
 487
 488         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 489                 return -ENODEV;
 490
 491         /* match device ID in ath3k blacklist table */
 492         if (!id->driver_info) {
 493                 const struct usb_device_id *match;
 494                 match = usb_match_id(intf, ath3k_blist_tbl);
 495                 if (match)
 496                         id = match;
 497         }
 498
 499         /* load patch and sysconfig files for AR3012 */
 500         if (id->driver_info & BTUSB_ATH3012) {
 501
 502                 /* New firmware with patch and sysconfig files already loaded */
 503                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 504                         return -ENODEV;
 505
 506                 ret = ath3k_load_patch(udev);
 507                 if (ret < 0) {
 508                         BT_ERR("Loading patch file failed");
 509                         return ret;
 510                 }
 511                 ret = ath3k_load_syscfg(udev);
 512                 if (ret < 0) {
 513                         BT_ERR("Loading sysconfig file failed");
 514                         return ret;
 515                 }
 516                 ret = ath3k_set_normal_mode(udev);
 517                 if (ret < 0) {
 518                         BT_ERR("Set normal mode failed");
 519                         return ret;
 520                 }
 521                 ath3k_switch_pid(udev);
 522                 return 0;
 523         }
 524
 525         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
 526         if (ret < 0) {
 527                 if (ret == -ENOENT)
 528                         BT_ERR("Firmware file \"%s\" not found",
 529                                                         ATH3K_FIRMWARE);
 530                 else
 531                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
 532                                                         ATH3K_FIRMWARE, ret);
 533                 return ret;
 534         }
 535
 536         ret = ath3k_load_firmware(udev, firmware);
 537         release_firmware(firmware);
 538
 539         return ret;
 540 }
 541
 542 static void ath3k_disconnect(struct usb_interface *intf)
 543 {
 544         BT_DBG("ath3k_disconnect intf %p", intf);
 545 }
 546
 547 static struct usb_driver ath3k_driver = {
 548         .name           = "ath3k",
 549         .probe          = ath3k_probe,
 550         .disconnect     = ath3k_disconnect,
 551         .id_table       = ath3k_table,
 552         .disable_hub_initiated_lpm = 1,
 553 };
 554
 555 module_usb_driver(ath3k_driver);
 556
 557 MODULE_AUTHOR("Atheros Communications");
 558 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 559 MODULE_VERSION(VERSION);
 560 MODULE_LICENSE("GPL");
 561 MODULE_FIRMWARE(ATH3K_FIRMWARE);