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                                             int count)
 208 {
 209         BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
 210                err, len, size, count);
 211 }
 212
 213 #define USB_REQ_DFU_DNLOAD      1
 214 #define BULK_SIZE               4096
 215 #define FW_HDR_SIZE             20
 216 #define TIMEGAP_USEC_MIN        50
 217 #define TIMEGAP_USEC_MAX        100
 218
 219 static int ath3k_load_firmware(struct usb_device *udev,
 220                                 const struct firmware *firmware)
 221 {
 222         u8 *send_buf;
 223         int len = 0;
 224         int err, pipe, size, sent = 0;
 225         int count = firmware->size;
 226
 227         BT_DBG("udev %p", udev);
 228
 229         pipe = usb_sndctrlpipe(udev, 0);
 230
 231         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 232         if (!send_buf) {
 233                 BT_ERR("Can't allocate memory chunk for firmware");
 234                 return -ENOMEM;
 235         }
 236
 237         memcpy(send_buf, firmware->data, FW_HDR_SIZE);
 238         err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
 239                               0, 0, send_buf, FW_HDR_SIZE,
 240                               USB_CTRL_SET_TIMEOUT);
 241         if (err < 0) {
 242                 BT_ERR("Can't change to loading configuration err");
 243                 goto error;
 244         }
 245         sent += FW_HDR_SIZE;
 246         count -= FW_HDR_SIZE;
 247
 248         pipe = usb_sndbulkpipe(udev, 0x02);
 249
 250         while (count) {
 251                 /* workaround the compatibility issue with xHCI controller*/
 252                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 253
 254                 size = min_t(uint, count, BULK_SIZE);
 255                 memcpy(send_buf, firmware->data + sent, size);
 256
 257                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 258                                         &len, 3000);
 259
 260                 if (err || (len != size)) {
 261                         ath3k_log_failed_loading(err, len, size, count);
 262                         goto error;
 263                 }
 264
 265                 sent  += size;
 266                 count -= size;
 267         }
 268
 269 error:
 270         kfree(send_buf);
 271         return err;
 272 }
 273
 274 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 275 {
 276         int ret, pipe = 0;
 277         char *buf;
 278
 279         buf = kmalloc(sizeof(*buf), GFP_KERNEL);
 280         if (!buf)
 281                 return -ENOMEM;
 282
 283         pipe = usb_rcvctrlpipe(udev, 0);
 284         ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE,
 285                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 286                               buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT);
 287
 288         *state = *buf;
 289         kfree(buf);
 290
 291         return ret;
 292 }
 293
 294 static int ath3k_get_version(struct usb_device *udev,
 295                         struct ath3k_version *version)
 296 {
 297         int ret, pipe = 0;
 298         struct ath3k_version *buf;
 299         const int size = sizeof(*buf);
 300
 301         buf = kmalloc(size, GFP_KERNEL);
 302         if (!buf)
 303                 return -ENOMEM;
 304
 305         pipe = usb_rcvctrlpipe(udev, 0);
 306         ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION,
 307                               USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 308                               buf, size, USB_CTRL_SET_TIMEOUT);
 309
 310         memcpy(version, buf, size);
 311         kfree(buf);
 312
 313         return ret;
 314 }
 315
 316 static int ath3k_load_fwfile(struct usb_device *udev,
 317                 const struct firmware *firmware)
 318 {
 319         u8 *send_buf;
 320         int len = 0;
 321         int err, pipe, size, count, sent = 0;
 322         int ret;
 323
 324         count = firmware->size;
 325
 326         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 327         if (!send_buf) {
 328                 BT_ERR("Can't allocate memory chunk for firmware");
 329                 return -ENOMEM;
 330         }
 331
 332         size = min_t(uint, count, FW_HDR_SIZE);
 333         memcpy(send_buf, firmware->data, size);
 334
 335         pipe = usb_sndctrlpipe(udev, 0);
 336         ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD,
 337                         USB_TYPE_VENDOR, 0, 0, send_buf,
 338                         size, USB_CTRL_SET_TIMEOUT);
 339         if (ret < 0) {
 340                 BT_ERR("Can't change to loading configuration err");
 341                 kfree(send_buf);
 342                 return ret;
 343         }
 344
 345         sent += size;
 346         count -= size;
 347
 348         pipe = usb_sndbulkpipe(udev, 0x02);
 349
 350         while (count) {
 351                 /* workaround the compatibility issue with xHCI controller*/
 352                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 353
 354                 size = min_t(uint, count, BULK_SIZE);
 355                 memcpy(send_buf, firmware->data + sent, size);
 356
 357                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 358                                         &len, 3000);
 359                 if (err || (len != size)) {
 360                         ath3k_log_failed_loading(err, len, size, count);
 361                         kfree(send_buf);
 362                         return err;
 363                 }
 364                 sent  += size;
 365                 count -= size;
 366         }
 367
 368         kfree(send_buf);
 369         return 0;
 370 }
 371
 372 static int ath3k_switch_pid(struct usb_device *udev)
 373 {
 374         int pipe = 0;
 375
 376         pipe = usb_sndctrlpipe(udev, 0);
 377         return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID,
 378                         USB_TYPE_VENDOR, 0, 0,
 379                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 380 }
 381
 382 static int ath3k_set_normal_mode(struct usb_device *udev)
 383 {
 384         unsigned char fw_state;
 385         int pipe = 0, ret;
 386
 387         ret = ath3k_get_state(udev, &fw_state);
 388         if (ret < 0) {
 389                 BT_ERR("Can't get state to change to normal mode err");
 390                 return ret;
 391         }
 392
 393         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 394                 BT_DBG("firmware was already in normal mode");
 395                 return 0;
 396         }
 397
 398         pipe = usb_sndctrlpipe(udev, 0);
 399         return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE,
 400                         USB_TYPE_VENDOR, 0, 0,
 401                         NULL, 0, USB_CTRL_SET_TIMEOUT);
 402 }
 403
 404 static int ath3k_load_patch(struct usb_device *udev)
 405 {
 406         unsigned char fw_state;
 407         char filename[ATH3K_NAME_LEN];
 408         const struct firmware *firmware;
 409         struct ath3k_version fw_version;
 410         __u32 pt_rom_version, pt_build_version;
 411         int ret;
 412
 413         ret = ath3k_get_state(udev, &fw_state);
 414         if (ret < 0) {
 415                 BT_ERR("Can't get state to change to load ram patch err");
 416                 return ret;
 417         }
 418
 419         if (fw_state & ATH3K_PATCH_UPDATE) {
 420                 BT_DBG("Patch was already downloaded");
 421                 return 0;
 422         }
 423
 424         ret = ath3k_get_version(udev, &fw_version);
 425         if (ret < 0) {
 426                 BT_ERR("Can't get version to change to load ram patch err");
 427                 return ret;
 428         }
 429
 430         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 431                  le32_to_cpu(fw_version.rom_version));
 432
 433         ret = request_firmware(&firmware, filename, &udev->dev);
 434         if (ret < 0) {
 435                 BT_ERR("Patch file not found %s", filename);
 436                 return ret;
 437         }
 438
 439         pt_rom_version = get_unaligned_le32(firmware->data +
 440                                             firmware->size - 8);
 441         pt_build_version = get_unaligned_le32(firmware->data +
 442                                               firmware->size - 4);
 443
 444         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
 445             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
 446                 BT_ERR("Patch file version did not match with firmware");
 447                 release_firmware(firmware);
 448                 return -EINVAL;
 449         }
 450
 451         ret = ath3k_load_fwfile(udev, firmware);
 452         release_firmware(firmware);
 453
 454         return ret;
 455 }
 456
 457 static int ath3k_load_syscfg(struct usb_device *udev)
 458 {
 459         unsigned char fw_state;
 460         char filename[ATH3K_NAME_LEN];
 461         const struct firmware *firmware;
 462         struct ath3k_version fw_version;
 463         int clk_value, ret;
 464
 465         ret = ath3k_get_state(udev, &fw_state);
 466         if (ret < 0) {
 467                 BT_ERR("Can't get state to change to load configuration err");
 468                 return -EBUSY;
 469         }
 470
 471         ret = ath3k_get_version(udev, &fw_version);
 472         if (ret < 0) {
 473                 BT_ERR("Can't get version to change to load ram patch err");
 474                 return ret;
 475         }
 476
 477         switch (fw_version.ref_clock) {
 478
 479         case ATH3K_XTAL_FREQ_26M:
 480                 clk_value = 26;
 481                 break;
 482         case ATH3K_XTAL_FREQ_40M:
 483                 clk_value = 40;
 484                 break;
 485         case ATH3K_XTAL_FREQ_19P2:
 486                 clk_value = 19;
 487                 break;
 488         default:
 489                 clk_value = 0;
 490                 break;
 491         }
 492
 493         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 494                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
 495
 496         ret = request_firmware(&firmware, filename, &udev->dev);
 497         if (ret < 0) {
 498                 BT_ERR("Configuration file not found %s", filename);
 499                 return ret;
 500         }
 501
 502         ret = ath3k_load_fwfile(udev, firmware);
 503         release_firmware(firmware);
 504
 505         return ret;
 506 }
 507
 508 static int ath3k_probe(struct usb_interface *intf,
 509                         const struct usb_device_id *id)
 510 {
 511         const struct firmware *firmware;
 512         struct usb_device *udev = interface_to_usbdev(intf);
 513         int ret;
 514
 515         BT_DBG("intf %p id %p", intf, id);
 516
 517         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 518                 return -ENODEV;
 519
 520         /* match device ID in ath3k blacklist table */
 521         if (!id->driver_info) {
 522                 const struct usb_device_id *match;
 523
 524                 match = usb_match_id(intf, ath3k_blist_tbl);
 525                 if (match)
 526                         id = match;
 527         }
 528
 529         /* load patch and sysconfig files for AR3012 */
 530         if (id->driver_info & BTUSB_ATH3012) {
 531                 /* New firmware with patch and sysconfig files already loaded */
 532                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 533                         return -ENODEV;
 534
 535                 ret = ath3k_load_patch(udev);
 536                 if (ret < 0) {
 537                         BT_ERR("Loading patch file failed");
 538                         return ret;
 539                 }
 540                 ret = ath3k_load_syscfg(udev);
 541                 if (ret < 0) {
 542                         BT_ERR("Loading sysconfig file failed");
 543                         return ret;
 544                 }
 545                 ret = ath3k_set_normal_mode(udev);
 546                 if (ret < 0) {
 547                         BT_ERR("Set normal mode failed");
 548                         return ret;
 549                 }
 550                 ath3k_switch_pid(udev);
 551                 return 0;
 552         }
 553
 554         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
 555         if (ret < 0) {
 556                 if (ret == -ENOENT)
 557                         BT_ERR("Firmware file \"%s\" not found",
 558                                                         ATH3K_FIRMWARE);
 559                 else
 560                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
 561                                                         ATH3K_FIRMWARE, ret);
 562                 return ret;
 563         }
 564
 565         ret = ath3k_load_firmware(udev, firmware);
 566         release_firmware(firmware);
 567
 568         return ret;
 569 }
 570
 571 static void ath3k_disconnect(struct usb_interface *intf)
 572 {
 573         BT_DBG("%s intf %p", __func__, intf);
 574 }
 575
 576 static struct usb_driver ath3k_driver = {
 577         .name           = "ath3k",
 578         .probe          = ath3k_probe,
 579         .disconnect     = ath3k_disconnect,
 580         .id_table       = ath3k_table,
 581         .disable_hub_initiated_lpm = 1,
 582 };
 583
 584 module_usb_driver(ath3k_driver);
 585
 586 MODULE_AUTHOR("Atheros Communications");
 587 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 588 MODULE_VERSION(VERSION);
 589 MODULE_LICENSE("GPL");
 590 MODULE_FIRMWARE(ATH3K_FIRMWARE);