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(0x0489, 0xe095) },
  86         { USB_DEVICE(0x04c5, 0x1330) },
  87         { USB_DEVICE(0x04CA, 0x3004) },
  88         { USB_DEVICE(0x04CA, 0x3005) },
  89         { USB_DEVICE(0x04CA, 0x3006) },
  90         { USB_DEVICE(0x04CA, 0x3007) },
  91         { USB_DEVICE(0x04CA, 0x3008) },
  92         { USB_DEVICE(0x04CA, 0x300b) },
  93         { USB_DEVICE(0x04CA, 0x300d) },
  94         { USB_DEVICE(0x04CA, 0x300f) },
  95         { USB_DEVICE(0x04CA, 0x3010) },
  96         { USB_DEVICE(0x04CA, 0x3014) },
  97         { USB_DEVICE(0x04CA, 0x3018) },
  98         { USB_DEVICE(0x0930, 0x0219) },
  99         { USB_DEVICE(0x0930, 0x021c) },
 100         { USB_DEVICE(0x0930, 0x0220) },
 101         { USB_DEVICE(0x0930, 0x0227) },
 102         { USB_DEVICE(0x0b05, 0x17d0) },
 103         { USB_DEVICE(0x0CF3, 0x0036) },
 104         { USB_DEVICE(0x0CF3, 0x3004) },
 105         { USB_DEVICE(0x0CF3, 0x3008) },
 106         { USB_DEVICE(0x0CF3, 0x311D) },
 107         { USB_DEVICE(0x0CF3, 0x311E) },
 108         { USB_DEVICE(0x0CF3, 0x311F) },
 109         { USB_DEVICE(0x0cf3, 0x3121) },
 110         { USB_DEVICE(0x0CF3, 0x817a) },
 111         { USB_DEVICE(0x0CF3, 0x817b) },
 112         { USB_DEVICE(0x0cf3, 0xe003) },
 113         { USB_DEVICE(0x0CF3, 0xE004) },
 114         { USB_DEVICE(0x0CF3, 0xE005) },
 115         { USB_DEVICE(0x0CF3, 0xE006) },
 116         { USB_DEVICE(0x13d3, 0x3362) },
 117         { USB_DEVICE(0x13d3, 0x3375) },
 118         { USB_DEVICE(0x13d3, 0x3393) },
 119         { USB_DEVICE(0x13d3, 0x3395) },
 120         { USB_DEVICE(0x13d3, 0x3402) },
 121         { USB_DEVICE(0x13d3, 0x3408) },
 122         { USB_DEVICE(0x13d3, 0x3423) },
 123         { USB_DEVICE(0x13d3, 0x3432) },
 124         { USB_DEVICE(0x13d3, 0x3472) },
 125         { USB_DEVICE(0x13d3, 0x3474) },
 126         { USB_DEVICE(0x13d3, 0x3487) },
 127         { USB_DEVICE(0x13d3, 0x3490) },
 128
 129         /* Atheros AR5BBU12 with sflash firmware */
 130         { USB_DEVICE(0x0489, 0xE02C) },
 131
 132         /* Atheros AR5BBU22 with sflash firmware */
 133         { USB_DEVICE(0x0489, 0xE036) },
 134         { USB_DEVICE(0x0489, 0xE03C) },
 135
 136         { }     /* Terminating entry */
 137 };
 138
 139 MODULE_DEVICE_TABLE(usb, ath3k_table);
 140
 141 #define BTUSB_ATH3012           0x80
 142 /* This table is to load patch and sysconfig files
 143  * for AR3012
 144  */
 145 static const struct usb_device_id ath3k_blist_tbl[] = {
 146
 147         /* Atheros AR3012 with sflash firmware*/
 148         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 177         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 178         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 179         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 180         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 181         { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
 182         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 183         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 184         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 185         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 186         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 187         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 188         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 189         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 190         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 191         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 192         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 193         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 194         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 195         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 196         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 197         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 198
 199         /* Atheros AR5BBU22 with sflash firmware */
 200         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 201         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 202
 203         { }     /* Terminating entry */
 204 };
 205
 206 static inline void ath3k_log_failed_loading(int err, int len, int size)
 207 {
 208         BT_ERR("Error in firmware loading err = %d, len = %d, size = %d",
 209                         err, len, size);
 210 }
 211
 212 #define USB_REQ_DFU_DNLOAD      1
 213 #define BULK_SIZE               4096
 214 #define FW_HDR_SIZE             20
 215 #define TIMEGAP_USEC_MIN        50
 216 #define TIMEGAP_USEC_MAX        100
 217
 218 static int ath3k_load_firmware(struct usb_device *udev,
 219                                 const struct firmware *firmware)
 220 {
 221         u8 *send_buf;
 222         int len = 0;
 223         int err, pipe, size, sent = 0;
 224         int count = firmware->size;
 225
 226         BT_DBG("udev %p", udev);
 227
 228         pipe = usb_sndctrlpipe(udev, 0);
 229
 230         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 231         if (!send_buf) {
 232                 BT_ERR("Can't allocate memory chunk for firmware");
 233                 return -ENOMEM;
 234         }
 235
 236         memcpy(send_buf, firmware->data, FW_HDR_SIZE);
 237         err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
 238                               0, 0, send_buf, FW_HDR_SIZE,
 239                               USB_CTRL_SET_TIMEOUT);
 240         if (err < 0) {
 241                 BT_ERR("Can't change to loading configuration err");
 242                 goto error;
 243         }
 244         sent += FW_HDR_SIZE;
 245         count -= FW_HDR_SIZE;
 246
 247         pipe = usb_sndbulkpipe(udev, 0x02);
 248
 249         while (count) {
 250                 /* workaround the compatibility issue with xHCI controller*/
 251                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 252
 253                 size = min_t(uint, count, BULK_SIZE);
 254                 memcpy(send_buf, firmware->data + sent, size);
 255
 256                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 257                                         &len, 3000);
 258
 259                 if (err || (len != size)) {
 260                         ath3k_log_failed_loading(err, len, size);
 261                         goto error;
 262                 }
 263
 264                 sent  += size;
 265                 count -= size;
 266         }
 267
 268 error:
 269         kfree(send_buf);
 270         return err;
 271 }
 272
 273 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 274 {
 275         int ret, pipe = 0;
 276         char *buf;
 277
 278         buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 279         if (!buf)
 280                 return -ENOMEM;
 281
 282         pipe = usb_rcvctrlpipe(udev, 0);
 283         ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 284                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 285                               buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
 286
 287         *state = *buf;
 288         kfree(buf);
 289
 290         return ret;
 291 }
 292
 293 static int ath3k_get_version(struct usb_device *udev,
 294                         struct ath3k_version *version)
 295 {
 296         int ret, pipe = 0;
 297         struct ath3k_version *buf;
 298         const int size = sizeof(*buf);
 299
 300         buf = kmalloc(size, GFP_KERNEL);
 301         if (!buf)
 302                 return -ENOMEM;
 303
 304         pipe = usb_rcvctrlpipe(udev, 0);
 305         ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 306                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 307                               buf, size, USB_CTRL_SET_TIMEOUT);
 308
 309         memcpy(version, buf, size);
 310         kfree(buf);
 311
 312         return ret;
 313 }
 314
 315 static int ath3k_load_fwfile(struct usb_device *udev,
 316                 const struct firmware *firmware)
 317 {
 318         u8 *send_buf;
 319         int len = 0;
 320         int err, pipe, size, count, sent = 0;
 321         int ret;
 322
 323         count = firmware->size;
 324
 325         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 326         if (!send_buf) {
 327                 BT_ERR("Can't allocate memory chunk for firmware");
 328                 return -ENOMEM;
 329         }
 330
 331         size = min_t(uint, count, FW_HDR_SIZE);
 332         memcpy(send_buf, firmware->data, size);
 333
 334         pipe = usb_sndctrlpipe(udev, 0);
 335         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 336                         USB_TYPE_VENDOR, 0, 0, send_buf,
 337                         size, USB_CTRL_SET_TIMEOUT);
 338         if (ret < 0) {
 339                 BT_ERR("Can't change to loading configuration err");
 340                 kfree(send_buf);
 341                 return ret;
 342         }
 343
 344         sent += size;
 345         count -= size;
 346
 347         pipe = usb_sndbulkpipe(udev, 0x02);
 348
 349         while (count) {
 350                 /* workaround the compatibility issue with xHCI controller*/
 351                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 352
 353                 size = min_t(uint, count, BULK_SIZE);
 354                 memcpy(send_buf, firmware->data + sent, size);
 355
 356                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 357                                         &len, 3000);
 358                 if (err || (len != size)) {
 359                         ath3k_log_failed_loading(err, len, size);
 360                         kfree(send_buf);
 361                         return err;
 362                 }
 363                 sent  += size;
 364                 count -= size;
 365         }
 366
 367         kfree(send_buf);
 368         return 0;
 369 }
 370
 371 static int ath3k_switch_pid(struct usb_device *udev)
 372 {
 373         int pipe = 0;
 374
 375         pipe = usb_sndctrlpipe(udev, 0);
 376         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 377                         USB_TYPE_VENDOR, 0, 0,
 378                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 379 }
 380
 381 static int ath3k_set_normal_mode(struct usb_device *udev)
 382 {
 383         unsigned char fw_state;
 384         int pipe = 0, ret;
 385
 386         ret = ath3k_get_state(udev, &fw_state);
 387         if (ret < 0) {
 388                 BT_ERR("Can't get state to change to normal mode err");
 389                 return ret;
 390         }
 391
 392         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 393                 BT_DBG("firmware was already in normal mode");
 394                 return 0;
 395         }
 396
 397         pipe = usb_sndctrlpipe(udev, 0);
 398         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 399                         USB_TYPE_VENDOR, 0, 0,
 400                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 401 }
 402
 403 static int ath3k_load_patch(struct usb_device *udev)
 404 {
 405         unsigned char fw_state;
 406         char filename[ATH3K_NAME_LEN];
 407         const struct firmware *firmware;
 408         struct ath3k_version fw_version;
 409         __u32 pt_rom_version, pt_build_version;
 410         int ret;
 411
 412         ret = ath3k_get_state(udev, &fw_state);
 413         if (ret < 0) {
 414                 BT_ERR("Can't get state to change to load ram patch err");
 415                 return ret;
 416         }
 417
 418         if (fw_state & ATH3K_PATCH_UPDATE) {
 419                 BT_DBG("Patch was already downloaded");
 420                 return 0;
 421         }
 422
 423         ret = ath3k_get_version(udev, &fw_version);
 424         if (ret < 0) {
 425                 BT_ERR("Can't get version to change to load ram patch err");
 426                 return ret;
 427         }
 428
 429         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 430                  le32_to_cpu(fw_version.rom_version));
 431
 432         ret = request_firmware(&firmware, filename, &udev->dev);
 433         if (ret < 0) {
 434                 BT_ERR("Patch file not found %s", filename);
 435                 return ret;
 436         }
 437
 438         pt_rom_version = get_unaligned_le32(firmware->data +
 439                                             firmware->size - 8);
 440         pt_build_version = get_unaligned_le32(firmware->data +
 441                                               firmware->size - 4);
 442
 443         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
 444             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
 445                 BT_ERR("Patch file version did not match with firmware");
 446                 release_firmware(firmware);
 447                 return -EINVAL;
 448         }
 449
 450         ret = ath3k_load_fwfile(udev, firmware);
 451         release_firmware(firmware);
 452
 453         return ret;
 454 }
 455
 456 static int ath3k_load_syscfg(struct usb_device *udev)
 457 {
 458         unsigned char fw_state;
 459         char filename[ATH3K_NAME_LEN];
 460         const struct firmware *firmware;
 461         struct ath3k_version fw_version;
 462         int clk_value, ret;
 463
 464         ret = ath3k_get_state(udev, &fw_state);
 465         if (ret < 0) {
 466                 BT_ERR("Can't get state to change to load configuration err");
 467                 return -EBUSY;
 468         }
 469
 470         ret = ath3k_get_version(udev, &fw_version);
 471         if (ret < 0) {
 472                 BT_ERR("Can't get version to change to load ram patch err");
 473                 return ret;
 474         }
 475
 476         switch (fw_version.ref_clock) {
 477
 478         case ATH3K_XTAL_FREQ_26M:
 479                 clk_value = 26;
 480                 break;
 481         case ATH3K_XTAL_FREQ_40M:
 482                 clk_value = 40;
 483                 break;
 484         case ATH3K_XTAL_FREQ_19P2:
 485                 clk_value = 19;
 486                 break;
 487         default:
 488                 clk_value = 0;
 489                 break;
 490         }
 491
 492         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 493                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
 494
 495         ret = request_firmware(&firmware, filename, &udev->dev);
 496         if (ret < 0) {
 497                 BT_ERR("Configuration file not found %s", filename);
 498                 return ret;
 499         }
 500
 501         ret = ath3k_load_fwfile(udev, firmware);
 502         release_firmware(firmware);
 503
 504         return ret;
 505 }
 506
 507 static int ath3k_probe(struct usb_interface *intf,
 508                         const struct usb_device_id *id)
 509 {
 510         const struct firmware *firmware;
 511         struct usb_device *udev = interface_to_usbdev(intf);
 512         int ret;
 513
 514         BT_DBG("intf %p id %p", intf, id);
 515
 516         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 517                 return -ENODEV;
 518
 519         /* match device ID in ath3k blacklist table */
 520         if (!id->driver_info) {
 521                 const struct usb_device_id *match;
 522
 523                 match = usb_match_id(intf, ath3k_blist_tbl);
 524                 if (match)
 525                         id = match;
 526         }
 527
 528         /* load patch and sysconfig files for AR3012 */
 529         if (id->driver_info & BTUSB_ATH3012) {
 530                 /* New firmware with patch and sysconfig files already loaded */
 531                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 532                         return -ENODEV;
 533
 534                 ret = ath3k_load_patch(udev);
 535                 if (ret < 0) {
 536                         BT_ERR("Loading patch file failed");
 537                         return ret;
 538                 }
 539                 ret = ath3k_load_syscfg(udev);
 540                 if (ret < 0) {
 541                         BT_ERR("Loading sysconfig file failed");
 542                         return ret;
 543                 }
 544                 ret = ath3k_set_normal_mode(udev);
 545                 if (ret < 0) {
 546                         BT_ERR("Set normal mode failed");
 547                         return ret;
 548                 }
 549                 ath3k_switch_pid(udev);
 550                 return 0;
 551         }
 552
 553         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
 554         if (ret < 0) {
 555                 if (ret == -ENOENT)
 556                         BT_ERR("Firmware file \"%s\" not found",
 557                                                         ATH3K_FIRMWARE);
 558                 else
 559                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
 560                                                         ATH3K_FIRMWARE, ret);
 561                 return ret;
 562         }
 563
 564         ret = ath3k_load_firmware(udev, firmware);
 565         release_firmware(firmware);
 566
 567         return ret;
 568 }
 569
 570 static void ath3k_disconnect(struct usb_interface *intf)
 571 {
 572         BT_DBG("%s intf %p", __func__, intf);
 573 }
 574
 575 static struct usb_driver ath3k_driver = {
 576         .name           = "ath3k",
 577         .probe          = ath3k_probe,
 578         .disconnect     = ath3k_disconnect,
 579         .id_table       = ath3k_table,
 580         .disable_hub_initiated_lpm = 1,
 581 };
 582
 583 module_usb_driver(ath3k_driver);
 584
 585 MODULE_AUTHOR("Atheros Communications");
 586 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 587 MODULE_VERSION(VERSION);
 588 MODULE_LICENSE("GPL");
 589 MODULE_FIRMWARE(ATH3K_FIRMWARE);