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(0x04c5, 0x1330) },
  84         { USB_DEVICE(0x04CA, 0x3004) },
  85         { USB_DEVICE(0x04CA, 0x3005) },
  86         { USB_DEVICE(0x04CA, 0x3006) },
  87         { USB_DEVICE(0x04CA, 0x3007) },
  88         { USB_DEVICE(0x04CA, 0x3008) },
  89         { USB_DEVICE(0x04CA, 0x300b) },
  90         { USB_DEVICE(0x04CA, 0x300f) },
  91         { USB_DEVICE(0x04CA, 0x3010) },
  92         { USB_DEVICE(0x0930, 0x0219) },
  93         { USB_DEVICE(0x0930, 0x021c) },
  94         { USB_DEVICE(0x0930, 0x0220) },
  95         { USB_DEVICE(0x0930, 0x0227) },
  96         { USB_DEVICE(0x0b05, 0x17d0) },
  97         { USB_DEVICE(0x0CF3, 0x0036) },
  98         { USB_DEVICE(0x0CF3, 0x3004) },
  99         { USB_DEVICE(0x0CF3, 0x3008) },
 100         { USB_DEVICE(0x0CF3, 0x311D) },
 101         { USB_DEVICE(0x0CF3, 0x311E) },
 102         { USB_DEVICE(0x0CF3, 0x311F) },
 103         { USB_DEVICE(0x0cf3, 0x3121) },
 104         { USB_DEVICE(0x0CF3, 0x817a) },
 105         { USB_DEVICE(0x0CF3, 0x817b) },
 106         { USB_DEVICE(0x0cf3, 0xe003) },
 107         { USB_DEVICE(0x0CF3, 0xE004) },
 108         { USB_DEVICE(0x0CF3, 0xE005) },
 109         { USB_DEVICE(0x13d3, 0x3362) },
 110         { USB_DEVICE(0x13d3, 0x3375) },
 111         { USB_DEVICE(0x13d3, 0x3393) },
 112         { USB_DEVICE(0x13d3, 0x3395) },
 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 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, 0x021c), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0CF3, 0x817b), .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, 0xe003), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x13d3, 0x3395), .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         if ((err = usb_control_msg(udev, pipe,
 212                                 USB_REQ_DFU_DNLOAD,
 213                                 USB_TYPE_VENDOR, 0, 0,
 214                                 send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) {
 215                 BT_ERR("Can't change to loading configuration err");
 216                 goto error;
 217         }
 218         sent += 20;
 219         count -= 20;
 220
 221         while (count) {
 222                 /* workaround the compatibility issue with xHCI controller*/
 223                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 224
 225                 size = min_t(uint, count, BULK_SIZE);
 226                 pipe = usb_sndbulkpipe(udev, 0x02);
 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 pipe = 0;
 250
 251         pipe = usb_rcvctrlpipe(udev, 0);
 252         return usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 253                         USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 254                         state, 0x01, USB_CTRL_SET_TIMEOUT);
 255 }
 256
 257 static int ath3k_get_version(struct usb_device *udev,
 258                         struct ath3k_version *version)
 259 {
 260         int pipe = 0;
 261
 262         pipe = usb_rcvctrlpipe(udev, 0);
 263         return usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 264                         USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, version,
 265                         sizeof(struct ath3k_version),
 266                         USB_CTRL_SET_TIMEOUT);
 267 }
 268
 269 static int ath3k_load_fwfile(struct usb_device *udev,
 270                 const struct firmware *firmware)
 271 {
 272         u8 *send_buf;
 273         int err, pipe, len, size, count, sent = 0;
 274         int ret;
 275
 276         count = firmware->size;
 277
 278         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 279         if (!send_buf) {
 280                 BT_ERR("Can't allocate memory chunk for firmware");
 281                 return -ENOMEM;
 282         }
 283
 284         size = min_t(uint, count, FW_HDR_SIZE);
 285         memcpy(send_buf, firmware->data, size);
 286
 287         pipe = usb_sndctrlpipe(udev, 0);
 288         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 289                         USB_TYPE_VENDOR, 0, 0, send_buf,
 290                         size, USB_CTRL_SET_TIMEOUT);
 291         if (ret < 0) {
 292                 BT_ERR("Can't change to loading configuration err");
 293                 kfree(send_buf);
 294                 return ret;
 295         }
 296
 297         sent += size;
 298         count -= size;
 299
 300         while (count) {
 301                 /* workaround the compatibility issue with xHCI controller*/
 302                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 303
 304                 size = min_t(uint, count, BULK_SIZE);
 305                 pipe = usb_sndbulkpipe(udev, 0x02);
 306
 307                 memcpy(send_buf, firmware->data + sent, size);
 308
 309                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 310                                         &len, 3000);
 311                 if (err || (len != size)) {
 312                         BT_ERR("Error in firmware loading err = %d,"
 313                                 "len = %d, size = %d", err, len, size);
 314                         kfree(send_buf);
 315                         return err;
 316                 }
 317                 sent  += size;
 318                 count -= size;
 319         }
 320
 321         kfree(send_buf);
 322         return 0;
 323 }
 324
 325 static int ath3k_switch_pid(struct usb_device *udev)
 326 {
 327         int pipe = 0;
 328
 329         pipe = usb_sndctrlpipe(udev, 0);
 330         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 331                         USB_TYPE_VENDOR, 0, 0,
 332                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 333 }
 334
 335 static int ath3k_set_normal_mode(struct usb_device *udev)
 336 {
 337         unsigned char fw_state;
 338         int pipe = 0, ret;
 339
 340         ret = ath3k_get_state(udev, &fw_state);
 341         if (ret < 0) {
 342                 BT_ERR("Can't get state to change to normal mode err");
 343                 return ret;
 344         }
 345
 346         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 347                 BT_DBG("firmware was already in normal mode");
 348                 return 0;
 349         }
 350
 351         pipe = usb_sndctrlpipe(udev, 0);
 352         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 353                         USB_TYPE_VENDOR, 0, 0,
 354                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 355 }
 356
 357 static int ath3k_load_patch(struct usb_device *udev)
 358 {
 359         unsigned char fw_state;
 360         char filename[ATH3K_NAME_LEN] = {0};
 361         const struct firmware *firmware;
 362         struct ath3k_version fw_version, pt_version;
 363         int ret;
 364
 365         ret = ath3k_get_state(udev, &fw_state);
 366         if (ret < 0) {
 367                 BT_ERR("Can't get state to change to load ram patch err");
 368                 return ret;
 369         }
 370
 371         if (fw_state & ATH3K_PATCH_UPDATE) {
 372                 BT_DBG("Patch was already downloaded");
 373                 return 0;
 374         }
 375
 376         ret = ath3k_get_version(udev, &fw_version);
 377         if (ret < 0) {
 378                 BT_ERR("Can't get version to change to load ram patch err");
 379                 return ret;
 380         }
 381
 382         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 383                 fw_version.rom_version);
 384
 385         ret = request_firmware(&firmware, filename, &udev->dev);
 386         if (ret < 0) {
 387                 BT_ERR("Patch file not found %s", filename);
 388                 return ret;
 389         }
 390
 391         pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8);
 392         pt_version.build_version = *(int *)
 393                 (firmware->data + firmware->size - 4);
 394
 395         if ((pt_version.rom_version != fw_version.rom_version) ||
 396                 (pt_version.build_version <= fw_version.build_version)) {
 397                 BT_ERR("Patch file version did not match with firmware");
 398                 release_firmware(firmware);
 399                 return -EINVAL;
 400         }
 401
 402         ret = ath3k_load_fwfile(udev, firmware);
 403         release_firmware(firmware);
 404
 405         return ret;
 406 }
 407
 408 static int ath3k_load_syscfg(struct usb_device *udev)
 409 {
 410         unsigned char fw_state;
 411         char filename[ATH3K_NAME_LEN] = {0};
 412         const struct firmware *firmware;
 413         struct ath3k_version fw_version;
 414         int clk_value, ret;
 415
 416         ret = ath3k_get_state(udev, &fw_state);
 417         if (ret < 0) {
 418                 BT_ERR("Can't get state to change to load configration err");
 419                 return -EBUSY;
 420         }
 421
 422         ret = ath3k_get_version(udev, &fw_version);
 423         if (ret < 0) {
 424                 BT_ERR("Can't get version to change to load ram patch err");
 425                 return ret;
 426         }
 427
 428         switch (fw_version.ref_clock) {
 429
 430         case ATH3K_XTAL_FREQ_26M:
 431                 clk_value = 26;
 432                 break;
 433         case ATH3K_XTAL_FREQ_40M:
 434                 clk_value = 40;
 435                 break;
 436         case ATH3K_XTAL_FREQ_19P2:
 437                 clk_value = 19;
 438                 break;
 439         default:
 440                 clk_value = 0;
 441                 break;
 442         }
 443
 444         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 445                 fw_version.rom_version, clk_value, ".dfu");
 446
 447         ret = request_firmware(&firmware, filename, &udev->dev);
 448         if (ret < 0) {
 449                 BT_ERR("Configuration file not found %s", filename);
 450                 return ret;
 451         }
 452
 453         ret = ath3k_load_fwfile(udev, firmware);
 454         release_firmware(firmware);
 455
 456         return ret;
 457 }
 458
 459 static int ath3k_probe(struct usb_interface *intf,
 460                         const struct usb_device_id *id)
 461 {
 462         const struct firmware *firmware;
 463         struct usb_device *udev = interface_to_usbdev(intf);
 464         int ret;
 465
 466         BT_DBG("intf %p id %p", intf, id);
 467
 468         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 469                 return -ENODEV;
 470
 471         /* match device ID in ath3k blacklist table */
 472         if (!id->driver_info) {
 473                 const struct usb_device_id *match;
 474                 match = usb_match_id(intf, ath3k_blist_tbl);
 475                 if (match)
 476                         id = match;
 477         }
 478
 479         /* load patch and sysconfig files for AR3012 */
 480         if (id->driver_info & BTUSB_ATH3012) {
 481
 482                 /* New firmware with patch and sysconfig files already loaded */
 483                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 484                         return -ENODEV;
 485
 486                 ret = ath3k_load_patch(udev);
 487                 if (ret < 0) {
 488                         BT_ERR("Loading patch file failed");
 489                         return ret;
 490                 }
 491                 ret = ath3k_load_syscfg(udev);
 492                 if (ret < 0) {
 493                         BT_ERR("Loading sysconfig file failed");
 494                         return ret;
 495                 }
 496                 ret = ath3k_set_normal_mode(udev);
 497                 if (ret < 0) {
 498                         BT_ERR("Set normal mode failed");
 499                         return ret;
 500                 }
 501                 ath3k_switch_pid(udev);
 502                 return 0;
 503         }
 504
 505         if (request_firmware(&firmware, "ath3k-1.fw", &udev->dev) < 0) {
 506                 BT_ERR("Error loading firmware");
 507                 return -EIO;
 508         }
 509
 510         ret = ath3k_load_firmware(udev, firmware);
 511         release_firmware(firmware);
 512
 513         return ret;
 514 }
 515
 516 static void ath3k_disconnect(struct usb_interface *intf)
 517 {
 518         BT_DBG("ath3k_disconnect intf %p", intf);
 519 }
 520
 521 static struct usb_driver ath3k_driver = {
 522         .name           = "ath3k",
 523         .probe          = ath3k_probe,
 524         .disconnect     = ath3k_disconnect,
 525         .id_table       = ath3k_table,
 526 };
 527
 528 static int __init ath3k_init(void)
 529 {
 530         BT_INFO("Atheros AR30xx firmware driver ver %s", VERSION);
 531         return usb_register(&ath3k_driver);
 532 }
 533
 534 static void __exit ath3k_exit(void)
 535 {
 536         usb_deregister(&ath3k_driver);
 537 }
 538
 539 module_init(ath3k_init);
 540 module_exit(ath3k_exit);
 541
 542 MODULE_AUTHOR("Atheros Communications");
 543 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 544 MODULE_VERSION(VERSION);
 545 MODULE_LICENSE("GPL");
 546 MODULE_FIRMWARE("ath3k-1.fw");