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(0x0930, 0x0219) },
  95         { USB_DEVICE(0x0930, 0x021c) },
  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, 0x817b) },
 108         { USB_DEVICE(0x0cf3, 0xe003) },
 109         { USB_DEVICE(0x0CF3, 0xE004) },
 110         { USB_DEVICE(0x0CF3, 0xE005) },
 111         { USB_DEVICE(0x13d3, 0x3362) },
 112         { USB_DEVICE(0x13d3, 0x3375) },
 113         { USB_DEVICE(0x13d3, 0x3393) },
 114         { USB_DEVICE(0x13d3, 0x3395) },
 115         { USB_DEVICE(0x13d3, 0x3402) },
 116         { USB_DEVICE(0x13d3, 0x3408) },
 117         { USB_DEVICE(0x13d3, 0x3423) },
 118         { USB_DEVICE(0x13d3, 0x3432) },
 119         { USB_DEVICE(0x13d3, 0x3474) },
 120
 121         /* Atheros AR5BBU12 with sflash firmware */
 122         { USB_DEVICE(0x0489, 0xE02C) },
 123
 124         /* Atheros AR5BBU22 with sflash firmware */
 125         { USB_DEVICE(0x0489, 0xE036) },
 126         { USB_DEVICE(0x0489, 0xE03C) },
 127
 128         { }     /* Terminating entry */
 129 };
 130
 131 MODULE_DEVICE_TABLE(usb, ath3k_table);
 132
 133 #define BTUSB_ATH3012           0x80
 134 /* This table is to load patch and sysconfig files
 135  * for AR3012 */
 136 static struct usb_device_id ath3k_blist_tbl[] = {
 137
 138         /* Atheros AR3012 with sflash firmware*/
 139         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 177         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 178         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 179         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 180         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 181         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 182         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 183
 184         /* Atheros AR5BBU22 with sflash firmware */
 185         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 186         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 187
 188         { }     /* Terminating entry */
 189 };
 190
 191 #define USB_REQ_DFU_DNLOAD      1
 192 #define BULK_SIZE               4096
 193 #define FW_HDR_SIZE             20
 194 #define TIMEGAP_USEC_MIN        50
 195 #define TIMEGAP_USEC_MAX        100
 196
 197 static int ath3k_load_firmware(struct usb_device *udev,
 198                                 const struct firmware *firmware)
 199 {
 200         u8 *send_buf;
 201         int err, pipe, len, size, sent = 0;
 202         int count = firmware->size;
 203
 204         BT_DBG("udev %p", udev);
 205
 206         pipe = usb_sndctrlpipe(udev, 0);
 207
 208         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 209         if (!send_buf) {
 210                 BT_ERR("Can't allocate memory chunk for firmware");
 211                 return -ENOMEM;
 212         }
 213
 214         memcpy(send_buf, firmware->data, 20);
 215         if ((err = usb_control_msg(udev, pipe,
 216                                 USB_REQ_DFU_DNLOAD,
 217                                 USB_TYPE_VENDOR, 0, 0,
 218                                 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
 219                 BT_ERR("Can't change to loading configuration err");
 220                 goto error;
 221         }
 222         sent += 20;
 223         count -= 20;
 224
 225         while (count) {
 226                 /* workaround the compatibility issue with xHCI controller*/
 227                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 228
 229                 size = min_t(uint, count, BULK_SIZE);
 230                 pipe = usb_sndbulkpipe(udev, 0x02);
 231                 memcpy(send_buf, firmware->data + sent, size);
 232
 233                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 234                                         &len, 3000);
 235
 236                 if (err || (len != size)) {
 237                         BT_ERR("Error in firmware loading err = %d,"
 238                                 "len = %d, size = %d", err, len, size);
 239                         goto error;
 240                 }
 241
 242                 sent  += size;
 243                 count -= size;
 244         }
 245
 246 error:
 247         kfree(send_buf);
 248         return err;
 249 }
 250
 251 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 252 {
 253         int pipe = 0;
 254
 255         pipe = usb_rcvctrlpipe(udev, 0);
 256         return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 257                         USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 258                         state, 0x01, USB_CTRL_SET_TIMEOUT);
 259 }
 260
 261 static int ath3k_get_version(struct usb_device *udev,
 262                         struct ath3k_version *version)
 263 {
 264         int pipe = 0;
 265
 266         pipe = usb_rcvctrlpipe(udev, 0);
 267         return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 268                         USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
 269                         sizeof(struct ath3k_version),
 270                         USB_CTRL_SET_TIMEOUT);
 271 }
 272
 273 static int ath3k_load_fwfile(struct usb_device *udev,
 274                 const struct firmware *firmware)
 275 {
 276         u8 *send_buf;
 277         int err, pipe, len, size, count, sent = 0;
 278         int ret;
 279
 280         count = firmware->size;
 281
 282         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 283         if (!send_buf) {
 284                 BT_ERR("Can't allocate memory chunk for firmware");
 285                 return -ENOMEM;
 286         }
 287
 288         size = min_t(uint, count, FW_HDR_SIZE);
 289         memcpy(send_buf, firmware->data, size);
 290
 291         pipe = usb_sndctrlpipe(udev, 0);
 292         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 293                         USB_TYPE_VENDOR, 0, 0, send_buf,
 294                         size, USB_CTRL_SET_TIMEOUT);
 295         if (ret < 0) {
 296                 BT_ERR("Can't change to loading configuration err");
 297                 kfree(send_buf);
 298                 return ret;
 299         }
 300
 301         sent += size;
 302         count -= size;
 303
 304         while (count) {
 305                 /* workaround the compatibility issue with xHCI controller*/
 306                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 307
 308                 size = min_t(uint, count, BULK_SIZE);
 309                 pipe = usb_sndbulkpipe(udev, 0x02);
 310
 311                 memcpy(send_buf, firmware->data + sent, size);
 312
 313                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 314                                         &len, 3000);
 315                 if (err || (len != size)) {
 316                         BT_ERR("Error in firmware loading err = %d,"
 317                                 "len = %d, size = %d", err, len, size);
 318                         kfree(send_buf);
 319                         return err;
 320                 }
 321                 sent  += size;
 322                 count -= size;
 323         }
 324
 325         kfree(send_buf);
 326         return 0;
 327 }
 328
 329 static int ath3k_switch_pid(struct usb_device *udev)
 330 {
 331         int pipe = 0;
 332
 333         pipe = usb_sndctrlpipe(udev, 0);
 334         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 335                         USB_TYPE_VENDOR, 0, 0,
 336                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 337 }
 338
 339 static int ath3k_set_normal_mode(struct usb_device *udev)
 340 {
 341         unsigned char fw_state;
 342         int pipe = 0, ret;
 343
 344         ret = ath3k_get_state(udev, &fw_state);
 345         if (ret < 0) {
 346                 BT_ERR("Can't get state to change to normal mode err");
 347                 return ret;
 348         }
 349
 350         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 351                 BT_DBG("firmware was already in normal mode");
 352                 return 0;
 353         }
 354
 355         pipe = usb_sndctrlpipe(udev, 0);
 356         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 357                         USB_TYPE_VENDOR, 0, 0,
 358                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 359 }
 360
 361 static int ath3k_load_patch(struct usb_device *udev)
 362 {
 363         unsigned char fw_state;
 364         char filename[ATH3K_NAME_LEN] = {0};
 365         const struct firmware *firmware;
 366         struct ath3k_version fw_version, pt_version;
 367         int ret;
 368
 369         ret = ath3k_get_state(udev, &fw_state);
 370         if (ret < 0) {
 371                 BT_ERR("Can't get state to change to load ram patch err");
 372                 return ret;
 373         }
 374
 375         if (fw_state & ATH3K_PATCH_UPDATE) {
 376                 BT_DBG("Patch was already downloaded");
 377                 return 0;
 378         }
 379
 380         ret = ath3k_get_version(udev, &fw_version);
 381         if (ret < 0) {
 382                 BT_ERR("Can't get version to change to load ram patch err");
 383                 return ret;
 384         }
 385
 386         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 387                 fw_version.rom_version);
 388
 389         ret = request_firmware(&firmware, filename, &udev->dev);
 390         if (ret < 0) {
 391                 BT_ERR("Patch file not found %s", filename);
 392                 return ret;
 393         }
 394
 395         pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
 396         pt_version.build_version = *(int *)
 397                 (firmware->data + firmware->size - 4);
 398
 399         if ((pt_version.rom_version != fw_version.rom_version) ||
 400                 (pt_version.build_version <= fw_version.build_version)) {
 401                 BT_ERR("Patch file version did not match with firmware");
 402                 release_firmware(firmware);
 403                 return -EINVAL;
 404         }
 405
 406         ret = ath3k_load_fwfile(udev, firmware);
 407         release_firmware(firmware);
 408
 409         return ret;
 410 }
 411
 412 static int ath3k_load_syscfg(struct usb_device *udev)
 413 {
 414         unsigned char fw_state;
 415         char filename[ATH3K_NAME_LEN] = {0};
 416         const struct firmware *firmware;
 417         struct ath3k_version fw_version;
 418         int clk_value, ret;
 419
 420         ret = ath3k_get_state(udev, &fw_state);
 421         if (ret < 0) {
 422                 BT_ERR("Can't get state to change to load configration err");
 423                 return -EBUSY;
 424         }
 425
 426         ret = ath3k_get_version(udev, &fw_version);
 427         if (ret < 0) {
 428                 BT_ERR("Can't get version to change to load ram patch err");
 429                 return ret;
 430         }
 431
 432         switch (fw_version.ref_clock) {
 433
 434         case ATH3K_XTAL_FREQ_26M:
 435                 clk_value = 26;
 436                 break;
 437         case ATH3K_XTAL_FREQ_40M:
 438                 clk_value = 40;
 439                 break;
 440         case ATH3K_XTAL_FREQ_19P2:
 441                 clk_value = 19;
 442                 break;
 443         default:
 444                 clk_value = 0;
 445                 break;
 446         }
 447
 448         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 449                 fw_version.rom_version, clk_value, ".dfu");
 450
 451         ret = request_firmware(&firmware, filename, &udev->dev);
 452         if (ret < 0) {
 453                 BT_ERR("Configuration file not found %s", filename);
 454                 return ret;
 455         }
 456
 457         ret = ath3k_load_fwfile(udev, firmware);
 458         release_firmware(firmware);
 459
 460         return ret;
 461 }
 462
 463 static int ath3k_probe(struct usb_interface *intf,
 464                         const struct usb_device_id *id)
 465 {
 466         const struct firmware *firmware;
 467         struct usb_device *udev = interface_to_usbdev(intf);
 468         int ret;
 469
 470         BT_DBG("intf %p id %p", intf, id);
 471
 472         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 473                 return -ENODEV;
 474
 475         /* match device ID in ath3k blacklist table */
 476         if (!id->driver_info) {
 477                 const struct usb_device_id *match;
 478                 match = usb_match_id(intf, ath3k_blist_tbl);
 479                 if (match)
 480                         id = match;
 481         }
 482
 483         /* load patch and sysconfig files for AR3012 */
 484         if (id->driver_info & BTUSB_ATH3012) {
 485
 486                 /* New firmware with patch and sysconfig files already loaded */
 487                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 488                         return -ENODEV;
 489
 490                 ret = ath3k_load_patch(udev);
 491                 if (ret < 0) {
 492                         BT_ERR("Loading patch file failed");
 493                         return ret;
 494                 }
 495                 ret = ath3k_load_syscfg(udev);
 496                 if (ret < 0) {
 497                         BT_ERR("Loading sysconfig file failed");
 498                         return ret;
 499                 }
 500                 ret = ath3k_set_normal_mode(udev);
 501                 if (ret < 0) {
 502                         BT_ERR("Set normal mode failed");
 503                         return ret;
 504                 }
 505                 ath3k_switch_pid(udev);
 506                 return 0;
 507         }
 508
 509         if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
 510                 BT_ERR("Error loading firmware");
 511                 return -EIO;
 512         }
 513
 514         ret = ath3k_load_firmware(udev, firmware);
 515         release_firmware(firmware);
 516
 517         return ret;
 518 }
 519
 520 static void ath3k_disconnect(struct usb_interface *intf)
 521 {
 522         BT_DBG("ath3k_disconnect intf %p", intf);
 523 }
 524
 525 static struct usb_driver ath3k_driver = {
 526         .name           = "ath3k",
 527         .probe          = ath3k_probe,
 528         .disconnect     = ath3k_disconnect,
 529         .id_table       = ath3k_table,
 530 };
 531
 532 static int __init ath3k_init(void)
 533 {
 534         BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
 535         return usb_register(&ath3k_driver);
 536 }
 537
 538 static void __exit ath3k_exit(void)
 539 {
 540         usb_deregister(&ath3k_driver);
 541 }
 542
 543 module_init(ath3k_init);
 544 module_exit(ath3k_exit);
 545
 546 MODULE_AUTHOR("Atheros Communications");
 547 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 548 MODULE_VERSION(VERSION);
 549 MODULE_LICENSE("GPL");
 550 MODULE_FIRMWARE("ath3k-1.fw");