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, 0x300d) },
  93         { USB_DEVICE(0x04CA, 0x300f) },
  94         { USB_DEVICE(0x04CA, 0x3010) },
  95         { USB_DEVICE(0x0930, 0x0219) },
  96         { USB_DEVICE(0x0930, 0x0220) },
  97         { USB_DEVICE(0x0930, 0x0227) },
  98         { USB_DEVICE(0x0b05, 0x17d0) },
  99         { USB_DEVICE(0x0CF3, 0x0036) },
 100         { USB_DEVICE(0x0CF3, 0x3004) },
 101         { USB_DEVICE(0x0CF3, 0x3008) },
 102         { USB_DEVICE(0x0CF3, 0x311D) },
 103         { USB_DEVICE(0x0CF3, 0x311E) },
 104         { USB_DEVICE(0x0CF3, 0x311F) },
 105         { USB_DEVICE(0x0cf3, 0x3121) },
 106         { USB_DEVICE(0x0CF3, 0x817a) },
 107         { USB_DEVICE(0x0cf3, 0xe003) },
 108         { USB_DEVICE(0x0CF3, 0xE004) },
 109         { USB_DEVICE(0x0CF3, 0xE005) },
 110         { USB_DEVICE(0x0CF3, 0xE006) },
 111         { USB_DEVICE(0x13d3, 0x3362) },
 112         { USB_DEVICE(0x13d3, 0x3375) },
 113         { USB_DEVICE(0x13d3, 0x3393) },
 114         { USB_DEVICE(0x13d3, 0x3402) },
 115         { USB_DEVICE(0x13d3, 0x3408) },
 116         { USB_DEVICE(0x13d3, 0x3423) },
 117         { USB_DEVICE(0x13d3, 0x3432) },
 118         { USB_DEVICE(0x13d3, 0x3474) },
 119
 120         /* Atheros AR5BBU12 with sflash firmware */
 121         { USB_DEVICE(0x0489, 0xE02C) },
 122
 123         /* Atheros AR5BBU22 with sflash firmware */
 124         { USB_DEVICE(0x0489, 0xE036) },
 125         { USB_DEVICE(0x0489, 0xE03C) },
 126
 127         { }     /* Terminating entry */
 128 };
 129
 130 MODULE_DEVICE_TABLE(usb, ath3k_table);
 131
 132 #define BTUSB_ATH3012           0x80
 133 /* This table is to load patch and sysconfig files
 134  * for AR3012 */
 135 static const struct usb_device_id ath3k_blist_tbl[] = {
 136
 137         /* Atheros AR3012 with sflash firmware*/
 138         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 177         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 178         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 179
 180         /* Atheros AR5BBU22 with sflash firmware */
 181         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 182         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 183
 184         { }     /* Terminating entry */
 185 };
 186
 187 #define USB_REQ_DFU_DNLOAD      1
 188 #define BULK_SIZE               4096
 189 #define FW_HDR_SIZE             20
 190 #define TIMEGAP_USEC_MIN        50
 191 #define TIMEGAP_USEC_MAX        100
 192
 193 static int ath3k_load_firmware(struct usb_device *udev,
 194                                 const struct firmware *firmware)
 195 {
 196         u8 *send_buf;
 197         int err, pipe, len, size, sent = 0;
 198         int count = firmware->size;
 199
 200         BT_DBG("udev %p", udev);
 201
 202         pipe = usb_sndctrlpipe(udev, 0);
 203
 204         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 205         if (!send_buf) {
 206                 BT_ERR("Can't allocate memory chunk for firmware");
 207                 return -ENOMEM;
 208         }
 209
 210         memcpy(send_buf, firmware->data, 20);
 211         err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
 212                               0, 0, send_buf, 20, USB_CTRL_SET_TIMEOUT);
 213         if (err < 0) {
 214                 BT_ERR("Can't change to loading configuration err");
 215                 goto error;
 216         }
 217         sent += 20;
 218         count -= 20;
 219
 220         pipe = usb_sndbulkpipe(udev, 0x02);
 221
 222         while (count) {
 223                 /* workaround the compatibility issue with xHCI controller*/
 224                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 225
 226                 size = min_t(uint, count, BULK_SIZE);
 227                 memcpy(send_buf, firmware->data + sent, size);
 228
 229                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 230                                         &len, 3000);
 231
 232                 if (err || (len != size)) {
 233                         BT_ERR("Error in firmware loading err = %d,"
 234                                 "len = %d, size = %d", err, len, size);
 235                         goto error;
 236                 }
 237
 238                 sent  += size;
 239                 count -= size;
 240         }
 241
 242 error:
 243         kfree(send_buf);
 244         return err;
 245 }
 246
 247 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 248 {
 249         int ret, pipe = 0;
 250         char *buf;
 251
 252         buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 253         if (!buf)
 254                 return -ENOMEM;
 255
 256         pipe = usb_rcvctrlpipe(udev, 0);
 257         ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 258                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 259                               buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
 260
 261         *state = *buf;
 262         kfree(buf);
 263
 264         return ret;
 265 }
 266
 267 static int ath3k_get_version(struct usb_device *udev,
 268                         struct ath3k_version *version)
 269 {
 270         int ret, pipe = 0;
 271         struct ath3k_version *buf;
 272         const int size = sizeof(*buf);
 273
 274         buf = kmalloc(size, GFP_KERNEL);
 275         if (!buf)
 276                 return -ENOMEM;
 277
 278         pipe = usb_rcvctrlpipe(udev, 0);
 279         ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 280                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 281                               buf, size, USB_CTRL_SET_TIMEOUT);
 282
 283         memcpy(version, buf, size);
 284         kfree(buf);
 285
 286         return ret;
 287 }
 288
 289 static int ath3k_load_fwfile(struct usb_device *udev,
 290                 const struct firmware *firmware)
 291 {
 292         u8 *send_buf;
 293         int err, pipe, len, size, count, sent = 0;
 294         int ret;
 295
 296         count = firmware->size;
 297
 298         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 299         if (!send_buf) {
 300                 BT_ERR("Can't allocate memory chunk for firmware");
 301                 return -ENOMEM;
 302         }
 303
 304         size = min_t(uint, count, FW_HDR_SIZE);
 305         memcpy(send_buf, firmware->data, size);
 306
 307         pipe = usb_sndctrlpipe(udev, 0);
 308         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 309                         USB_TYPE_VENDOR, 0, 0, send_buf,
 310                         size, USB_CTRL_SET_TIMEOUT);
 311         if (ret < 0) {
 312                 BT_ERR("Can't change to loading configuration err");
 313                 kfree(send_buf);
 314                 return ret;
 315         }
 316
 317         sent += size;
 318         count -= size;
 319
 320         pipe = usb_sndbulkpipe(udev, 0x02);
 321
 322         while (count) {
 323                 /* workaround the compatibility issue with xHCI controller*/
 324                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 325
 326                 size = min_t(uint, count, BULK_SIZE);
 327                 memcpy(send_buf, firmware->data + sent, size);
 328
 329                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 330                                         &len, 3000);
 331                 if (err || (len != size)) {
 332                         BT_ERR("Error in firmware loading err = %d,"
 333                                 "len = %d, size = %d", err, len, size);
 334                         kfree(send_buf);
 335                         return err;
 336                 }
 337                 sent  += size;
 338                 count -= size;
 339         }
 340
 341         kfree(send_buf);
 342         return 0;
 343 }
 344
 345 static int ath3k_switch_pid(struct usb_device *udev)
 346 {
 347         int pipe = 0;
 348
 349         pipe = usb_sndctrlpipe(udev, 0);
 350         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 351                         USB_TYPE_VENDOR, 0, 0,
 352                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 353 }
 354
 355 static int ath3k_set_normal_mode(struct usb_device *udev)
 356 {
 357         unsigned char fw_state;
 358         int pipe = 0, ret;
 359
 360         ret = ath3k_get_state(udev, &fw_state);
 361         if (ret < 0) {
 362                 BT_ERR("Can't get state to change to normal mode err");
 363                 return ret;
 364         }
 365
 366         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 367                 BT_DBG("firmware was already in normal mode");
 368                 return 0;
 369         }
 370
 371         pipe = usb_sndctrlpipe(udev, 0);
 372         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 373                         USB_TYPE_VENDOR, 0, 0,
 374                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 375 }
 376
 377 static int ath3k_load_patch(struct usb_device *udev)
 378 {
 379         unsigned char fw_state;
 380         char filename[ATH3K_NAME_LEN] = {0};
 381         const struct firmware *firmware;
 382         struct ath3k_version fw_version;
 383         __u32 pt_rom_version, pt_build_version;
 384         int ret;
 385
 386         ret = ath3k_get_state(udev, &fw_state);
 387         if (ret < 0) {
 388                 BT_ERR("Can't get state to change to load ram patch err");
 389                 return ret;
 390         }
 391
 392         if (fw_state & ATH3K_PATCH_UPDATE) {
 393                 BT_DBG("Patch was already downloaded");
 394                 return 0;
 395         }
 396
 397         ret = ath3k_get_version(udev, &fw_version);
 398         if (ret < 0) {
 399                 BT_ERR("Can't get version to change to load ram patch err");
 400                 return ret;
 401         }
 402
 403         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 404                  le32_to_cpu(fw_version.rom_version));
 405
 406         ret = request_firmware(&firmware, filename, &udev->dev);
 407         if (ret < 0) {
 408                 BT_ERR("Patch file not found %s", filename);
 409                 return ret;
 410         }
 411
 412         pt_rom_version = get_unaligned_le32(firmware->data +
 413                                             firmware->size - 8);
 414         pt_build_version = get_unaligned_le32(firmware->data +
 415                                               firmware->size - 4);
 416
 417         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
 418             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
 419                 BT_ERR("Patch file version did not match with firmware");
 420                 release_firmware(firmware);
 421                 return -EINVAL;
 422         }
 423
 424         ret = ath3k_load_fwfile(udev, firmware);
 425         release_firmware(firmware);
 426
 427         return ret;
 428 }
 429
 430 static int ath3k_load_syscfg(struct usb_device *udev)
 431 {
 432         unsigned char fw_state;
 433         char filename[ATH3K_NAME_LEN] = {0};
 434         const struct firmware *firmware;
 435         struct ath3k_version fw_version;
 436         int clk_value, ret;
 437
 438         ret = ath3k_get_state(udev, &fw_state);
 439         if (ret < 0) {
 440                 BT_ERR("Can't get state to change to load configuration err");
 441                 return -EBUSY;
 442         }
 443
 444         ret = ath3k_get_version(udev, &fw_version);
 445         if (ret < 0) {
 446                 BT_ERR("Can't get version to change to load ram patch err");
 447                 return ret;
 448         }
 449
 450         switch (fw_version.ref_clock) {
 451
 452         case ATH3K_XTAL_FREQ_26M:
 453                 clk_value = 26;
 454                 break;
 455         case ATH3K_XTAL_FREQ_40M:
 456                 clk_value = 40;
 457                 break;
 458         case ATH3K_XTAL_FREQ_19P2:
 459                 clk_value = 19;
 460                 break;
 461         default:
 462                 clk_value = 0;
 463                 break;
 464         }
 465
 466         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 467                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
 468
 469         ret = request_firmware(&firmware, filename, &udev->dev);
 470         if (ret < 0) {
 471                 BT_ERR("Configuration file not found %s", filename);
 472                 return ret;
 473         }
 474
 475         ret = ath3k_load_fwfile(udev, firmware);
 476         release_firmware(firmware);
 477
 478         return ret;
 479 }
 480
 481 static int ath3k_probe(struct usb_interface *intf,
 482                         const struct usb_device_id *id)
 483 {
 484         const struct firmware *firmware;
 485         struct usb_device *udev = interface_to_usbdev(intf);
 486         int ret;
 487
 488         BT_DBG("intf %p id %p", intf, id);
 489
 490         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 491                 return -ENODEV;
 492
 493         /* match device ID in ath3k blacklist table */
 494         if (!id->driver_info) {
 495                 const struct usb_device_id *match;
 496                 match = usb_match_id(intf, ath3k_blist_tbl);
 497                 if (match)
 498                         id = match;
 499         }
 500
 501         /* load patch and sysconfig files for AR3012 */
 502         if (id->driver_info & BTUSB_ATH3012) {
 503
 504                 /* New firmware with patch and sysconfig files already loaded */
 505                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 506                         return -ENODEV;
 507
 508                 ret = ath3k_load_patch(udev);
 509                 if (ret < 0) {
 510                         BT_ERR("Loading patch file failed");
 511                         return ret;
 512                 }
 513                 ret = ath3k_load_syscfg(udev);
 514                 if (ret < 0) {
 515                         BT_ERR("Loading sysconfig file failed");
 516                         return ret;
 517                 }
 518                 ret = ath3k_set_normal_mode(udev);
 519                 if (ret < 0) {
 520                         BT_ERR("Set normal mode failed");
 521                         return ret;
 522                 }
 523                 ath3k_switch_pid(udev);
 524                 return 0;
 525         }
 526
 527         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
 528         if (ret < 0) {
 529                 if (ret == -ENOENT)
 530                         BT_ERR("Firmware file \"%s\" not found",
 531                                                         ATH3K_FIRMWARE);
 532                 else
 533                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
 534                                                         ATH3K_FIRMWARE, ret);
 535                 return ret;
 536         }
 537
 538         ret = ath3k_load_firmware(udev, firmware);
 539         release_firmware(firmware);
 540
 541         return ret;
 542 }
 543
 544 static void ath3k_disconnect(struct usb_interface *intf)
 545 {
 546         BT_DBG("ath3k_disconnect intf %p", intf);
 547 }
 548
 549 static struct usb_driver ath3k_driver = {
 550         .name           = "ath3k",
 551         .probe          = ath3k_probe,
 552         .disconnect     = ath3k_disconnect,
 553         .id_table       = ath3k_table,
 554         .disable_hub_initiated_lpm = 1,
 555 };
 556
 557 module_usb_driver(ath3k_driver);
 558
 559 MODULE_AUTHOR("Atheros Communications");
 560 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 561 MODULE_VERSION(VERSION);
 562 MODULE_LICENSE("GPL");
 563 MODULE_FIRMWARE(ATH3K_FIRMWARE);