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/device.h>
  14 #include <linux/firmware.h>
  15 #include <linux/usb.h>
  16 #include <asm/unaligned.h>
  17 #include <net/bluetooth/bluetooth.h>
  18
  19 #define VERSION "1.0"
  20 #define ATH3K_FIRMWARE  "ath3k-1.fw"
  21
  22 #define ATH3K_DNLOAD                            0x01
  23 #define ATH3K_GETSTATE                          0x05
  24 #define ATH3K_SET_NORMAL_MODE                   0x07
  25 #define ATH3K_GETVERSION                        0x09
  26 #define USB_REG_SWITCH_VID_PID                  0x0a
  27
  28 #define ATH3K_MODE_MASK                         0x3F
  29 #define ATH3K_NORMAL_MODE                       0x0E
  30
  31 #define ATH3K_PATCH_UPDATE                      0x80
  32 #define ATH3K_SYSCFG_UPDATE                     0x40
  33
  34 #define ATH3K_XTAL_FREQ_26M                     0x00
  35 #define ATH3K_XTAL_FREQ_40M                     0x01
  36 #define ATH3K_XTAL_FREQ_19P2                    0x02
  37 #define ATH3K_NAME_LEN                          0xFF
  38
  39 struct ath3k_version {
  40         __le32  rom_version;
  41         __le32  build_version;
  42         __le32  ram_version;
  43         __u8    ref_clock;
  44         __u8    reserved[7];
  45 } __packed;
  46
  47 static const struct usb_device_id ath3k_table[] = {
  48         /* Atheros AR3011 */
  49         { USB_DEVICE(0x0CF3, 0x3000) },
  50
  51         /* Atheros AR3011 with sflash firmware*/
  52         { USB_DEVICE(0x0489, 0xE027) },
  53         { USB_DEVICE(0x0489, 0xE03D) },
  54         { USB_DEVICE(0x04F2, 0xAFF1) },
  55         { USB_DEVICE(0x0930, 0x0215) },
  56         { USB_DEVICE(0x0CF3, 0x3002) },
  57         { USB_DEVICE(0x0CF3, 0xE019) },
  58         { USB_DEVICE(0x13d3, 0x3304) },
  59
  60         /* Atheros AR9285 Malbec with sflash firmware */
  61         { USB_DEVICE(0x03F0, 0x311D) },
  62
  63         /* Atheros AR3012 with sflash firmware*/
  64         { USB_DEVICE(0x0489, 0xe04d) },
  65         { USB_DEVICE(0x0489, 0xe04e) },
  66         { USB_DEVICE(0x0489, 0xe057) },
  67         { USB_DEVICE(0x0489, 0xe056) },
  68         { USB_DEVICE(0x0489, 0xe05f) },
  69         { USB_DEVICE(0x0489, 0xe076) },
  70         { USB_DEVICE(0x0489, 0xe078) },
  71         { USB_DEVICE(0x0489, 0xe095) },
  72         { USB_DEVICE(0x04c5, 0x1330) },
  73         { USB_DEVICE(0x04CA, 0x3004) },
  74         { USB_DEVICE(0x04CA, 0x3005) },
  75         { USB_DEVICE(0x04CA, 0x3006) },
  76         { USB_DEVICE(0x04CA, 0x3007) },
  77         { USB_DEVICE(0x04CA, 0x3008) },
  78         { USB_DEVICE(0x04CA, 0x300b) },
  79         { USB_DEVICE(0x04CA, 0x300d) },
  80         { USB_DEVICE(0x04CA, 0x300f) },
  81         { USB_DEVICE(0x04CA, 0x3010) },
  82         { USB_DEVICE(0x04CA, 0x3014) },
  83         { USB_DEVICE(0x04CA, 0x3018) },
  84         { USB_DEVICE(0x0930, 0x0219) },
  85         { USB_DEVICE(0x0930, 0x021c) },
  86         { USB_DEVICE(0x0930, 0x0220) },
  87         { USB_DEVICE(0x0930, 0x0227) },
  88         { USB_DEVICE(0x0b05, 0x17d0) },
  89         { USB_DEVICE(0x0CF3, 0x0036) },
  90         { USB_DEVICE(0x0CF3, 0x3004) },
  91         { USB_DEVICE(0x0CF3, 0x3008) },
  92         { USB_DEVICE(0x0CF3, 0x311D) },
  93         { USB_DEVICE(0x0CF3, 0x311E) },
  94         { USB_DEVICE(0x0CF3, 0x311F) },
  95         { USB_DEVICE(0x0cf3, 0x3121) },
  96         { USB_DEVICE(0x0CF3, 0x817a) },
  97         { USB_DEVICE(0x0CF3, 0x817b) },
  98         { USB_DEVICE(0x0cf3, 0xe003) },
  99         { USB_DEVICE(0x0CF3, 0xE004) },
 100         { USB_DEVICE(0x0CF3, 0xE005) },
 101         { USB_DEVICE(0x0CF3, 0xE006) },
 102         { USB_DEVICE(0x13d3, 0x3362) },
 103         { USB_DEVICE(0x13d3, 0x3375) },
 104         { USB_DEVICE(0x13d3, 0x3393) },
 105         { USB_DEVICE(0x13d3, 0x3395) },
 106         { USB_DEVICE(0x13d3, 0x3402) },
 107         { USB_DEVICE(0x13d3, 0x3408) },
 108         { USB_DEVICE(0x13d3, 0x3423) },
 109         { USB_DEVICE(0x13d3, 0x3432) },
 110         { USB_DEVICE(0x13d3, 0x3472) },
 111         { USB_DEVICE(0x13d3, 0x3474) },
 112         { USB_DEVICE(0x13d3, 0x3487) },
 113         { USB_DEVICE(0x13d3, 0x3490) },
 114
 115         /* Atheros AR5BBU12 with sflash firmware */
 116         { USB_DEVICE(0x0489, 0xE02C) },
 117
 118         /* Atheros AR5BBU22 with sflash firmware */
 119         { USB_DEVICE(0x0489, 0xE036) },
 120         { USB_DEVICE(0x0489, 0xE03C) },
 121
 122         { }     /* Terminating entry */
 123 };
 124
 125 MODULE_DEVICE_TABLE(usb, ath3k_table);
 126
 127 #define BTUSB_ATH3012           0x80
 128 /* This table is to load patch and sysconfig files
 129  * for AR3012
 130  */
 131 static const struct usb_device_id ath3k_blist_tbl[] = {
 132
 133         /* Atheros AR3012 with sflash firmware*/
 134         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 135         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 136         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 137         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 138         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 139         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 140         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 141         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 142         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 143         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 144         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 145         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 146         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 147         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 148         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 149         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 150         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 151         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 152         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 153         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 154         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 155         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 156         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 157         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 158         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 159         { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
 160         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 161         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 162         { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
 163         { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
 164         { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
 165         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 166         { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
 167         { USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 },
 168         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 169         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 170         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 171         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 172         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 173         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 174         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 175         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 176         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 177         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 178         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 179         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 180         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 181         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 182         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 183         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 184
 185         /* Atheros AR5BBU22 with sflash firmware */
 186         { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 },
 187         { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 },
 188
 189         { }     /* Terminating entry */
 190 };
 191
 192 static inline void ath3k_log_failed_loading(int err, int len, int size,
 193                                             int count)
 194 {
 195         BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d",
 196                err, len, size, count);
 197 }
 198
 199 #define USB_REQ_DFU_DNLOAD      1
 200 #define BULK_SIZE               4096
 201 #define FW_HDR_SIZE             20
 202 #define TIMEGAP_USEC_MIN        50
 203 #define TIMEGAP_USEC_MAX        100
 204
 205 static int ath3k_load_firmware(struct usb_device *udev,
 206                                 const struct firmware *firmware)
 207 {
 208         u8 *send_buf;
 209         int len = 0;
 210         int err, pipe, size, sent = 0;
 211         int count = firmware->size;
 212
 213         BT_DBG("udev %p", udev);
 214
 215         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 216         if (!send_buf) {
 217                 BT_ERR("Can't allocate memory chunk for firmware");
 218                 return -ENOMEM;
 219         }
 220
 221         err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR,
 222                                    0, 0, firmware->data, FW_HDR_SIZE,
 223                                    USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
 224         if (err) {
 225                 BT_ERR("Can't change to loading configuration err");
 226                 goto error;
 227         }
 228         sent += FW_HDR_SIZE;
 229         count -= FW_HDR_SIZE;
 230
 231         pipe = usb_sndbulkpipe(udev, 0x02);
 232
 233         while (count) {
 234                 /* workaround the compatibility issue with xHCI controller*/
 235                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 236
 237                 size = min_t(uint, count, BULK_SIZE);
 238                 memcpy(send_buf, firmware->data + sent, size);
 239
 240                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 241                                         &len, 3000);
 242
 243                 if (err || (len != size)) {
 244                         ath3k_log_failed_loading(err, len, size, count);
 245                         goto error;
 246                 }
 247
 248                 sent  += size;
 249                 count -= size;
 250         }
 251
 252 error:
 253         kfree(send_buf);
 254         return err;
 255 }
 256
 257 static int ath3k_get_state(struct usb_device *udev, unsigned char *state)
 258 {
 259         return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE,
 260                                     USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 261                                     state, 1, USB_CTRL_SET_TIMEOUT,
 262                                     GFP_KERNEL);
 263 }
 264
 265 static int ath3k_get_version(struct usb_device *udev,
 266                         struct ath3k_version *version)
 267 {
 268         return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION,
 269                                     USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
 270                                     version, sizeof(*version), USB_CTRL_SET_TIMEOUT,
 271                                     GFP_KERNEL);
 272 }
 273
 274 static int ath3k_load_fwfile(struct usb_device *udev,
 275                 const struct firmware *firmware)
 276 {
 277         u8 *send_buf;
 278         int len = 0;
 279         int err, pipe, size, count, sent = 0;
 280         int ret;
 281
 282         count = firmware->size;
 283
 284         send_buf = kmalloc(BULK_SIZE, GFP_KERNEL);
 285         if (!send_buf) {
 286                 BT_ERR("Can't allocate memory chunk for firmware");
 287                 return -ENOMEM;
 288         }
 289
 290         size = min_t(uint, count, FW_HDR_SIZE);
 291
 292         ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0,
 293                                    firmware->data, size, USB_CTRL_SET_TIMEOUT,
 294                                    GFP_KERNEL);
 295         if (ret) {
 296                 BT_ERR("Can't change to loading configuration err");
 297                 kfree(send_buf);
 298                 return ret;
 299         }
 300
 301         sent += size;
 302         count -= size;
 303
 304         pipe = usb_sndbulkpipe(udev, 0x02);
 305
 306         while (count) {
 307                 /* workaround the compatibility issue with xHCI controller*/
 308                 usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX);
 309
 310                 size = min_t(uint, count, BULK_SIZE);
 311                 memcpy(send_buf, firmware->data + sent, size);
 312
 313                 err = usb_bulk_msg(udev, pipe, send_buf, size,
 314                                         &len, 3000);
 315                 if (err || (len != size)) {
 316                         ath3k_log_failed_loading(err, len, size, count);
 317                         kfree(send_buf);
 318                         return err;
 319                 }
 320                 sent  += size;
 321                 count -= size;
 322         }
 323
 324         kfree(send_buf);
 325         return 0;
 326 }
 327
 328 static void ath3k_switch_pid(struct usb_device *udev)
 329 {
 330         usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR,
 331                              0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
 332 }
 333
 334 static int ath3k_set_normal_mode(struct usb_device *udev)
 335 {
 336         unsigned char fw_state;
 337         int ret;
 338
 339         ret = ath3k_get_state(udev, &fw_state);
 340         if (ret) {
 341                 BT_ERR("Can't get state to change to normal mode err");
 342                 return ret;
 343         }
 344
 345         if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) {
 346                 BT_DBG("firmware was already in normal mode");
 347                 return 0;
 348         }
 349
 350         return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE,
 351                                     USB_TYPE_VENDOR, 0, 0, NULL, 0,
 352                                     USB_CTRL_SET_TIMEOUT, GFP_KERNEL);
 353 }
 354
 355 static int ath3k_load_patch(struct usb_device *udev)
 356 {
 357         unsigned char fw_state;
 358         char filename[ATH3K_NAME_LEN];
 359         const struct firmware *firmware;
 360         struct ath3k_version fw_version;
 361         __u32 pt_rom_version, pt_build_version;
 362         int ret;
 363
 364         ret = ath3k_get_state(udev, &fw_state);
 365         if (ret) {
 366                 BT_ERR("Can't get state to change to load ram patch err");
 367                 return ret;
 368         }
 369
 370         if (fw_state & ATH3K_PATCH_UPDATE) {
 371                 BT_DBG("Patch was already downloaded");
 372                 return 0;
 373         }
 374
 375         ret = ath3k_get_version(udev, &fw_version);
 376         if (ret) {
 377                 BT_ERR("Can't get version to change to load ram patch err");
 378                 return ret;
 379         }
 380
 381         snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu",
 382                  le32_to_cpu(fw_version.rom_version));
 383
 384         ret = request_firmware(&firmware, filename, &udev->dev);
 385         if (ret < 0) {
 386                 BT_ERR("Patch file not found %s", filename);
 387                 return ret;
 388         }
 389
 390         pt_rom_version = get_unaligned_le32(firmware->data +
 391                                             firmware->size - 8);
 392         pt_build_version = get_unaligned_le32(firmware->data +
 393                                               firmware->size - 4);
 394
 395         if (pt_rom_version != le32_to_cpu(fw_version.rom_version) ||
 396             pt_build_version <= le32_to_cpu(fw_version.build_version)) {
 397                 BT_ERR("Patch file version did not match with firmware");
 398                 release_firmware(firmware);
 399                 return -EINVAL;
 400         }
 401
 402         ret = ath3k_load_fwfile(udev, firmware);
 403         release_firmware(firmware);
 404
 405         return ret;
 406 }
 407
 408 static int ath3k_load_syscfg(struct usb_device *udev)
 409 {
 410         unsigned char fw_state;
 411         char filename[ATH3K_NAME_LEN];
 412         const struct firmware *firmware;
 413         struct ath3k_version fw_version;
 414         int clk_value, ret;
 415
 416         ret = ath3k_get_state(udev, &fw_state);
 417         if (ret) {
 418                 BT_ERR("Can't get state to change to load configuration err");
 419                 return -EBUSY;
 420         }
 421
 422         ret = ath3k_get_version(udev, &fw_version);
 423         if (ret) {
 424                 BT_ERR("Can't get version to change to load ram patch err");
 425                 return ret;
 426         }
 427
 428         switch (fw_version.ref_clock) {
 429
 430         case ATH3K_XTAL_FREQ_26M:
 431                 clk_value = 26;
 432                 break;
 433         case ATH3K_XTAL_FREQ_40M:
 434                 clk_value = 40;
 435                 break;
 436         case ATH3K_XTAL_FREQ_19P2:
 437                 clk_value = 19;
 438                 break;
 439         default:
 440                 clk_value = 0;
 441                 break;
 442         }
 443
 444         snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
 445                 le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");
 446
 447         ret = request_firmware(&firmware, filename, &udev->dev);
 448         if (ret < 0) {
 449                 BT_ERR("Configuration file not found %s", filename);
 450                 return ret;
 451         }
 452
 453         ret = ath3k_load_fwfile(udev, firmware);
 454         release_firmware(firmware);
 455
 456         return ret;
 457 }
 458
 459 static int ath3k_probe(struct usb_interface *intf,
 460                         const struct usb_device_id *id)
 461 {
 462         const struct firmware *firmware;
 463         struct usb_device *udev = interface_to_usbdev(intf);
 464         int ret;
 465
 466         BT_DBG("intf %p id %p", intf, id);
 467
 468         if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
 469                 return -ENODEV;
 470
 471         /* match device ID in ath3k blacklist table */
 472         if (!id->driver_info) {
 473                 const struct usb_device_id *match;
 474
 475                 match = usb_match_id(intf, ath3k_blist_tbl);
 476                 if (match)
 477                         id = match;
 478         }
 479
 480         /* load patch and sysconfig files for AR3012 */
 481         if (id->driver_info & BTUSB_ATH3012) {
 482                 /* New firmware with patch and sysconfig files already loaded */
 483                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001)
 484                         return -ENODEV;
 485
 486                 ret = ath3k_load_patch(udev);
 487                 if (ret < 0) {
 488                         BT_ERR("Loading patch file failed");
 489                         return ret;
 490                 }
 491                 ret = ath3k_load_syscfg(udev);
 492                 if (ret < 0) {
 493                         BT_ERR("Loading sysconfig file failed");
 494                         return ret;
 495                 }
 496                 ret = ath3k_set_normal_mode(udev);
 497                 if (ret) {
 498                         BT_ERR("Set normal mode failed");
 499                         return ret;
 500                 }
 501                 ath3k_switch_pid(udev);
 502                 return 0;
 503         }
 504
 505         ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev);
 506         if (ret < 0) {
 507                 if (ret == -ENOENT)
 508                         BT_ERR("Firmware file \"%s\" not found",
 509                                                         ATH3K_FIRMWARE);
 510                 else
 511                         BT_ERR("Firmware file \"%s\" request failed (err=%d)",
 512                                                         ATH3K_FIRMWARE, ret);
 513                 return ret;
 514         }
 515
 516         ret = ath3k_load_firmware(udev, firmware);
 517         release_firmware(firmware);
 518
 519         return ret;
 520 }
 521
 522 static void ath3k_disconnect(struct usb_interface *intf)
 523 {
 524         BT_DBG("%s intf %p", __func__, intf);
 525 }
 526
 527 static struct usb_driver ath3k_driver = {
 528         .name           = "ath3k",
 529         .probe          = ath3k_probe,
 530         .disconnect     = ath3k_disconnect,
 531         .id_table       = ath3k_table,
 532         .disable_hub_initiated_lpm = 1,
 533 };
 534
 535 module_usb_driver(ath3k_driver);
 536
 537 MODULE_AUTHOR("Atheros Communications");
 538 MODULE_DESCRIPTION("Atheros AR30xx firmware driver");
 539 MODULE_VERSION(VERSION);
 540 MODULE_LICENSE("GPL");
 541 MODULE_FIRMWARE(ATH3K_FIRMWARE);