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