drivers/bluetooth/ath3k.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (c) 2008-2009 Atheros Communications Inc.
   4  */
   5
   6
   7 #include <linux/module.h>
   8 #include <linux/kernel.h>
   9 #include <linux/init.h>
  10 #include <linux/slab.h>
  11 #include <linux/types.h>
  12 #include <linux/errno.h>
  13 #include <linux/firmware.h>
  14 #include <linux/usb.h>
  15 #include <asm/unaligned.h>
  16 #include <net/bluetooth/bluetooth.h>
  17
  18 #define VERSION "1.0"
  19 #define ATH3K_FIRMWARE  "ath3k-1.fw"
  20
  21 #define ATH3K_DNLOAD                            0x01
  22 #define ATH3K_GETSTATE                          0x05
  23 #define ATH3K_SET_NORMAL_MODE                   0x07
  24 #define ATH3K_GETVERSION                        0x09
  25 #define USB_REG_SWITCH_VID_PID                  0x0a
  26
  27 #define ATH3K_MODE_MASK                         0x3F
  28 #define ATH3K_NORMAL_MODE                       0x0E
  29
  30 #define ATH3K_PATCH_UPDATE                      0x80
  31 #define ATH3K_SYSCFG_UPDATE                     0x40
  32
  33 #define ATH3K_XTAL_FREQ_26M                     0x00
  34 #define ATH3K_XTAL_FREQ_40M                     0x01
  35 #define ATH3K_XTAL_FREQ_19P2                    0x02
  36 #define ATH3K_NAME_LEN                          0xFF
  37
  38 struct ath3k_version {
  39         __le32  rom_version;
  40         __le32  build_version;
  41         __le32  ram_version;
  42         __u8    ref_clock;
  43         __u8    reserved[7];
  44 } __packed;
  45
  46 static const struct usb_device_id ath3k_table[] = {
  47         /* Atheros AR3011 */
  48         { USB_DEVICE(0x0CF3, 0x3000) },
  49
  50         /* Atheros AR3011 with sflash firmware*/
  51         { USB_DEVICE(0x0489, 0xE027) },
  52         { USB_DEVICE(0x0489, 0xE03D) },
  53         { USB_DEVICE(0x04F2, 0xAFF1) },
  54         { USB_DEVICE(0x0930, 0x0215) },
  55         { USB_DEVICE(0x0CF3, 0x3002) },
  56         { USB_DEVICE(0x0CF3, 0xE019) },
  57         { USB_DEVICE(0x13d3, 0x3304) },
  58
  59         /* Atheros AR9285 Malbec with sflash firmware */
  60         { USB_DEVICE(0x03F0, 0x311D) },
  61
  62         /* Atheros AR3012 with sflash firmware*/
  63         { USB_DEVICE(0x0489, 0xe04d) },
  64         { USB_DEVICE(0x0489, 0xe04e) },
  65         { USB_DEVICE(0x0489, 0xe057) },
  66         { USB_DEVICE(0x0489, 0xe056) },
  67         { USB_DEVICE(0x0489, 0xe05f) },
  68         { USB_DEVICE(0x0489, 0xe076) },
  69         { USB_DEVICE(0x0489, 0xe078) },
  70         { USB_DEVICE(0x0489, 0xe095) },
  71         { USB_DEVICE(0x04c5, 0x1330) },
  72         { USB_DEVICE(0x04CA, 0x3004) },
  73         { USB_DEVICE(0x04CA, 0x3005) },
  74         { USB_DEVICE(0x04CA, 0x3006) },
  75         { USB_DEVICE(0x04CA, 0x3007) },
  76         { USB_DEVICE(0x04CA, 0x3008) },
  77         { USB_DEVICE(0x04CA, 0x300b) },
  78         { USB_DEVICE(0x04CA, 0x300d) },
  79         { USB_DEVICE(0x04CA, 0x300f) },
  80         { USB_DEVICE(0x04CA, 0x3010) },
  81         { USB_DEVICE(0x04CA, 0x3014) },
  82         { USB_DEVICE(0x04CA, 0x3018) },
  83         { USB_DEVICE(0x0930, 0x0219) },
  84         { USB_DEVICE(0x0930, 0x021c) },
  85         { USB_DEVICE(0x0930, 0x0220) },
  86         { USB_DEVICE(0x0930, 0x0227) },
  87         { USB_DEVICE(0x0b05, 0x17d0) },
  88         { USB_DEVICE(0x0CF3, 0x0036) },
  89         { USB_DEVICE(0x0CF3, 0x3004) },
  90         { USB_DEVICE(0x0CF3, 0x3008) },
  91         { USB_DEVICE(0x0CF3, 0x311D) },
  92         { USB_DEVICE(0x0CF3, 0x311E) },
  93         { USB_DEVICE(0x0CF3, 0x311F) },
  94         { USB_DEVICE(0x0cf3, 0x3121) },
  95         { USB_DEVICE(0x0CF3, 0x817a) },
  96         { USB_DEVICE(0x0CF3, 0x817b) },
  97         { USB_DEVICE(0x0cf3, 0xe003) },
  98         { USB_DEVICE(0x0CF3, 0xE004) },
  99         { USB_DEVICE(0x0CF3, 0xE005) },
 100         { USB_DEVICE(0x0CF3, 0xE006) },
 101         { USB_DEVICE(0x13d3, 0x3362) },
 102         { USB_DEVICE(0x13d3, 0x3375) },
 103         { USB_DEVICE(0x13d3, 0x3393) },
 104         { USB_DEVICE(0x13d3, 0x3395) },
 105         { USB_DEVICE(0x13d3, 0x3402) },
 106         { USB_DEVICE(0x13d3, 0x3408) },
 107         { USB_DEVICE(0x13d3, 0x3423) },
 108         { USB_DEVICE(0x13d3, 0x3432) },
 109         { USB_DEVICE(0x13d3, 0x3472) },
 110         { USB_DEVICE(0x13d3, 0x3474) },
 111         { USB_DEVICE(0x13d3, 0x3487) },
 112         { USB_DEVICE(0x13d3, 0x3490) },
 113
 114         /* Atheros AR5BBU12 with sflash firmware */
 115         { USB_DEVICE(0x0489, 0xE02C) },
 116
 117         /* Atheros AR5BBU22 with sflash firmware */
 118         { USB_DEVICE(0x0489, 0xE036) },
 119         { USB_DEVICE(0x0489, 0xE03C) },
 120
 121         { }     /* Terminating entry */
 122 };
 123
 124 MODULE_DEVICE_TABLE(usb, ath3k_table);
 125
 126 #define BTUSB_ATH3012           0x80
 127 /* This table is to load patch and sysconfig files
 128  * for AR3012
 129  */
 130 static const struct usb_device_id ath3k_blist_tbl[] = {
 131
 132         /* Atheros AR3012 with sflash firmware*/
 133         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 134         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 135         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 136         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 137         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3018), .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, 0xe006), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 177         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 178         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 179         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 180         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 181         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 182         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 183
 184         /* Atheros AR5BBU22 with sflash firmware */
 185         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 186         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 187
 188         { }     /* Terminating entry */
 189 };
 190
 191 static inline void ath3k_log_failed_loading(int err, int len, int size,
 192                                             int count)
 193 {
 194         BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
 195                err, len, size, count);
 196 }
 197
 198 #define USB_REQ_DFU_DNLOAD      1
 199 #define BULK_SIZE               4096
 200 #define FW_HDR_SIZE             20
 201 #define TIMEGAP_USEC_MIN        50
 202 #define TIMEGAP_USEC_MAX        100
 203
 204 static int ath3k_load_firmware(struct usb_device *udev,
 205                                 const struct firmware *firmware)
 206 {
 207         u8 *send_buf;
 208         int len = 0;
 209         int err, pipe, size, sent = 0;
 210         int count = firmware->size;
 211
 212         BT_DBG("udev %p", udev);
 213
 214         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 215         if (!send_buf) {
 216                 BT_ERR("Can't allocate memory chunk for firmware");
 217                 return -ENOMEM;
 218         }
 219
 220         err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
 221                                    0, 0, firmware->data, FW_HDR_SIZE,
 222                                    USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
 223         if (err) {
 224                 BT_ERR("Can't change to loading configuration err");
 225                 goto error;
 226         }
 227         sent += FW_HDR_SIZE;
 228         count -= FW_HDR_SIZE;
 229
 230         pipe = usb_sndbulkpipe(udev, 0x02);
 231
 232         while (count) {
 233                 /* workaround the compatibility issue with xHCI controller*/
 234                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 235
 236                 size = min_t(uint, count, BULK_SIZE);
 237                 memcpy(send_buf, firmware->data + sent, size);
 238
 239                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 240                                         &len, 3000);
 241
 242                 if (err || (len != size)) {
 243                         ath3k_log_failed_loading(err, len, size, count);
 244                         goto error;
 245                 }
 246
 247                 sent  += size;
 248                 count -= size;
 249         }
 250
 251 error:
 252         kfree(send_buf);
 253         return err;
 254 }
 255
 256 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 257 {
 258         return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE,
 259                                     USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 260                                     state, 1, USB_CTRL_SET_TIMEOUT,
 261                                     GFP_KERNEL);
 262 }
 263
 264 static int ath3k_get_version(struct usb_device *udev,
 265                         struct ath3k_version *version)
 266 {
 267         return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION,
 268                                     USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 269                                     version, sizeof(*version), USB_CTRL_SET_TIMEOUT,
 270                                     GFP_KERNEL);
 271 }
 272
 273 static int ath3k_load_fwfile(struct usb_device *udev,
 274                 const struct firmware *firmware)
 275 {
 276         u8 *send_buf;
 277         int len = 0;
 278         int err, pipe, size, count, sent = 0;
 279         int ret;
 280
 281         count = firmware->size;
 282
 283         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 284         if (!send_buf) {
 285                 BT_ERR("Can't allocate memory chunk for firmware");
 286                 return -ENOMEM;
 287         }
 288
 289         size = min_t(uint, count, FW_HDR_SIZE);
 290
 291         ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0,
 292                                    firmware->data, size, USB_CTRL_SET_TIMEOUT,
 293                                    GFP_KERNEL);
 294         if (ret) {
 295                 BT_ERR("Can't change to loading configuration err");
 296                 kfree(send_buf);
 297                 return ret;
 298         }
 299
 300         sent += size;
 301         count -= size;
 302
 303         pipe = usb_sndbulkpipe(udev, 0x02);
 304
 305         while (count) {
 306                 /* workaround the compatibility issue with xHCI controller*/
 307                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 308
 309                 size = min_t(uint, count, BULK_SIZE);
 310                 memcpy(send_buf, firmware->data + sent, size);
 311
 312                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 313                                         &len, 3000);
 314                 if (err || (len != size)) {
 315                         ath3k_log_failed_loading(err, len, size, count);
 316                         kfree(send_buf);
 317                         return err;
 318                 }
 319                 sent  += size;
 320                 count -= size;
 321         }
 322
 323         kfree(send_buf);
 324         return 0;
 325 }
 326
 327 static void ath3k_switch_pid(struct usb_device *udev)
 328 {
 329         usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR,
 330                              0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
 331 }
 332
 333 static int ath3k_set_normal_mode(struct usb_device *udev)
 334 {
 335         unsigned char fw_state;
 336         int ret;
 337
 338         ret = ath3k_get_state(udev, &fw_state);
 339         if (ret) {
 340                 BT_ERR("Can't get state to change to normal mode err");
 341                 return ret;
 342         }
 343
 344         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 345                 BT_DBG("firmware was already in normal mode");
 346                 return 0;
 347         }
 348
 349         return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE,
 350                                     USB_TYPE_VENDOR, 0, 0, NULL, 0,
 351                                     USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
 352 }
 353
 354 static int ath3k_load_patch(struct usb_device *udev)
 355 {
 356         unsigned char fw_state;
 357         char filename[ATH3K_NAME_LEN];
 358         const struct firmware *firmware;
 359         struct ath3k_version fw_version;
 360         __u32 pt_rom_version, pt_build_version;
 361         int ret;
 362
 363         ret = ath3k_get_state(udev, &fw_state);
 364         if (ret) {
 365                 BT_ERR("Can't get state to change to load ram patch err");
 366                 return ret;
 367         }
 368
 369         if (fw_state & ATH3K_PATCH_UPDATE) {
 370                 BT_DBG("Patch was already downloaded");
 371                 return 0;
 372         }
 373
 374         ret = ath3k_get_version(udev, &fw_version);
 375         if (ret) {
 376                 BT_ERR("Can't get version to change to load ram patch err");
 377                 return ret;
 378         }
 379
 380         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 381                  le32_to_cpu(fw_version.rom_version));
 382
 383         ret = request_firmware(&firmware, filename, &udev->dev);
 384         if (ret < 0) {
 385                 BT_ERR("Patch file not found %s", filename);
 386                 return ret;
 387         }
 388
 389         pt_rom_version = get_unaligned_le32(firmware->data +
 390                                             firmware->size - 8);
 391         pt_build_version = get_unaligned_le32(firmware->data +
 392                                               firmware->size - 4);
 393
 394         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
 395             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
 396                 BT_ERR("Patch file version did not match with firmware");
 397                 release_firmware(firmware);
 398                 return -EINVAL;
 399         }
 400
 401         ret = ath3k_load_fwfile(udev, firmware);
 402         release_firmware(firmware);
 403
 404         return ret;
 405 }
 406
 407 static int ath3k_load_syscfg(struct usb_device *udev)
 408 {
 409         unsigned char fw_state;
 410         char filename[ATH3K_NAME_LEN];
 411         const struct firmware *firmware;
 412         struct ath3k_version fw_version;
 413         int clk_value, ret;
 414
 415         ret = ath3k_get_state(udev, &fw_state);
 416         if (ret) {
 417                 BT_ERR("Can't get state to change to load configuration err");
 418                 return -EBUSY;
 419         }
 420
 421         ret = ath3k_get_version(udev, &fw_version);
 422         if (ret) {
 423                 BT_ERR("Can't get version to change to load ram patch err");
 424                 return ret;
 425         }
 426
 427         switch (fw_version.ref_clock) {
 428
 429         case ATH3K_XTAL_FREQ_26M:
 430                 clk_value = 26;
 431                 break;
 432         case ATH3K_XTAL_FREQ_40M:
 433                 clk_value = 40;
 434                 break;
 435         case ATH3K_XTAL_FREQ_19P2:
 436                 clk_value = 19;
 437                 break;
 438         default:
 439                 clk_value = 0;
 440                 break;
 441         }
 442
 443         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 444                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
 445
 446         ret = request_firmware(&firmware, filename, &udev->dev);
 447         if (ret < 0) {
 448                 BT_ERR("Configuration file not found %s", filename);
 449                 return ret;
 450         }
 451
 452         ret = ath3k_load_fwfile(udev, firmware);
 453         release_firmware(firmware);
 454
 455         return ret;
 456 }
 457
 458 static int ath3k_probe(struct usb_interface *intf,
 459                         const struct usb_device_id *id)
 460 {
 461         const struct firmware *firmware;
 462         struct usb_device *udev = interface_to_usbdev(intf);
 463         int ret;
 464
 465         BT_DBG("intf %p id %p", intf, id);
 466
 467         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 468                 return -ENODEV;
 469
 470         /* match device ID in ath3k blacklist table */
 471         if (!id->driver_info) {
 472                 const struct usb_device_id *match;
 473
 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                 /* New firmware with patch and sysconfig files already loaded */
 482                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 483                         return -ENODEV;
 484
 485                 ret = ath3k_load_patch(udev);
 486                 if (ret < 0) {
 487                         BT_ERR("Loading patch file failed");
 488                         return ret;
 489                 }
 490                 ret = ath3k_load_syscfg(udev);
 491                 if (ret < 0) {
 492                         BT_ERR("Loading sysconfig file failed");
 493                         return ret;
 494                 }
 495                 ret = ath3k_set_normal_mode(udev);
 496                 if (ret) {
 497                         BT_ERR("Set normal mode failed");
 498                         return ret;
 499                 }
 500                 ath3k_switch_pid(udev);
 501                 return 0;
 502         }
 503
 504         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
 505         if (ret < 0) {
 506                 if (ret == -ENOENT)
 507                         BT_ERR("Firmware file \"%s\" not found",
 508                                                         ATH3K_FIRMWARE);
 509                 else
 510                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
 511                                                         ATH3K_FIRMWARE, ret);
 512                 return ret;
 513         }
 514
 515         ret = ath3k_load_firmware(udev, firmware);
 516         release_firmware(firmware);
 517
 518         return ret;
 519 }
 520
 521 static void ath3k_disconnect(struct usb_interface *intf)
 522 {
 523         BT_DBG("%s intf %p", __func__, intf);
 524 }
 525
 526 static struct usb_driver ath3k_driver = {
 527         .name           = "ath3k",
 528         .probe          = ath3k_probe,
 529         .disconnect     = ath3k_disconnect,
 530         .id_table       = ath3k_table,
 531         .disable_hub_initiated_lpm = 1,
 532 };
 533
 534 module_usb_driver(ath3k_driver);
 535
 536 MODULE_AUTHOR("Atheros Communications");
 537 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 538 MODULE_VERSION(VERSION);
 539 MODULE_LICENSE("GPL");
 540 MODULE_FIRMWARE(ATH3K_FIRMWARE);