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); 590