core.c revision affd321733eebc92b12cd329505f63e94ae80c93
1/* 2 * Copyright (c) 2005-2011 Atheros Communications Inc. 3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18#include <linux/module.h> 19#include <linux/firmware.h> 20 21#include "core.h" 22#include "mac.h" 23#include "htc.h" 24#include "hif.h" 25#include "wmi.h" 26#include "bmi.h" 27#include "debug.h" 28#include "htt.h" 29 30unsigned int ath10k_debug_mask; 31static bool uart_print; 32static unsigned int ath10k_p2p; 33module_param_named(debug_mask, ath10k_debug_mask, uint, 0644); 34module_param(uart_print, bool, 0644); 35module_param_named(p2p, ath10k_p2p, uint, 0644); 36MODULE_PARM_DESC(debug_mask, "Debugging mask"); 37MODULE_PARM_DESC(uart_print, "Uart target debugging"); 38MODULE_PARM_DESC(p2p, "Enable ath10k P2P support"); 39 40static const struct ath10k_hw_params ath10k_hw_params_list[] = { 41 { 42 .id = QCA988X_HW_1_0_VERSION, 43 .name = "qca988x hw1.0", 44 .patch_load_addr = QCA988X_HW_1_0_PATCH_LOAD_ADDR, 45 .fw = { 46 .dir = QCA988X_HW_1_0_FW_DIR, 47 .fw = QCA988X_HW_1_0_FW_FILE, 48 .otp = QCA988X_HW_1_0_OTP_FILE, 49 .board = QCA988X_HW_1_0_BOARD_DATA_FILE, 50 }, 51 }, 52 { 53 .id = QCA988X_HW_2_0_VERSION, 54 .name = "qca988x hw2.0", 55 .patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR, 56 .fw = { 57 .dir = QCA988X_HW_2_0_FW_DIR, 58 .fw = QCA988X_HW_2_0_FW_FILE, 59 .otp = QCA988X_HW_2_0_OTP_FILE, 60 .board = QCA988X_HW_2_0_BOARD_DATA_FILE, 61 }, 62 }, 63}; 64 65static void ath10k_send_suspend_complete(struct ath10k *ar) 66{ 67 ath10k_dbg(ATH10K_DBG_CORE, "%s\n", __func__); 68 69 ar->is_target_paused = true; 70 wake_up(&ar->event_queue); 71} 72 73static int ath10k_check_fw_version(struct ath10k *ar) 74{ 75 char version[32]; 76 77 if (ar->fw_version_major >= SUPPORTED_FW_MAJOR && 78 ar->fw_version_minor >= SUPPORTED_FW_MINOR && 79 ar->fw_version_release >= SUPPORTED_FW_RELEASE && 80 ar->fw_version_build >= SUPPORTED_FW_BUILD) 81 return 0; 82 83 snprintf(version, sizeof(version), "%u.%u.%u.%u", 84 SUPPORTED_FW_MAJOR, SUPPORTED_FW_MINOR, 85 SUPPORTED_FW_RELEASE, SUPPORTED_FW_BUILD); 86 87 ath10k_warn("WARNING: Firmware version %s is not officially supported.\n", 88 ar->hw->wiphy->fw_version); 89 ath10k_warn("Please upgrade to version %s (or newer)\n", version); 90 91 return 0; 92} 93 94static int ath10k_init_connect_htc(struct ath10k *ar) 95{ 96 int status; 97 98 status = ath10k_wmi_connect_htc_service(ar); 99 if (status) 100 goto conn_fail; 101 102 /* Start HTC */ 103 status = ath10k_htc_start(&ar->htc); 104 if (status) 105 goto conn_fail; 106 107 /* Wait for WMI event to be ready */ 108 status = ath10k_wmi_wait_for_service_ready(ar); 109 if (status <= 0) { 110 ath10k_warn("wmi service ready event not received"); 111 status = -ETIMEDOUT; 112 goto timeout; 113 } 114 115 ath10k_dbg(ATH10K_DBG_CORE, "core wmi ready\n"); 116 return 0; 117 118timeout: 119 ath10k_htc_stop(&ar->htc); 120conn_fail: 121 return status; 122} 123 124static int ath10k_init_configure_target(struct ath10k *ar) 125{ 126 u32 param_host; 127 int ret; 128 129 /* tell target which HTC version it is used*/ 130 ret = ath10k_bmi_write32(ar, hi_app_host_interest, 131 HTC_PROTOCOL_VERSION); 132 if (ret) { 133 ath10k_err("settings HTC version failed\n"); 134 return ret; 135 } 136 137 /* set the firmware mode to STA/IBSS/AP */ 138 ret = ath10k_bmi_read32(ar, hi_option_flag, ¶m_host); 139 if (ret) { 140 ath10k_err("setting firmware mode (1/2) failed\n"); 141 return ret; 142 } 143 144 /* TODO following parameters need to be re-visited. */ 145 /* num_device */ 146 param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT); 147 /* Firmware mode */ 148 /* FIXME: Why FW_MODE_AP ??.*/ 149 param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT); 150 /* mac_addr_method */ 151 param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT); 152 /* firmware_bridge */ 153 param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT); 154 /* fwsubmode */ 155 param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT); 156 157 ret = ath10k_bmi_write32(ar, hi_option_flag, param_host); 158 if (ret) { 159 ath10k_err("setting firmware mode (2/2) failed\n"); 160 return ret; 161 } 162 163 /* We do all byte-swapping on the host */ 164 ret = ath10k_bmi_write32(ar, hi_be, 0); 165 if (ret) { 166 ath10k_err("setting host CPU BE mode failed\n"); 167 return ret; 168 } 169 170 /* FW descriptor/Data swap flags */ 171 ret = ath10k_bmi_write32(ar, hi_fw_swap, 0); 172 173 if (ret) { 174 ath10k_err("setting FW data/desc swap flags failed\n"); 175 return ret; 176 } 177 178 return 0; 179} 180 181static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar, 182 const char *dir, 183 const char *file) 184{ 185 char filename[100]; 186 const struct firmware *fw; 187 int ret; 188 189 if (file == NULL) 190 return ERR_PTR(-ENOENT); 191 192 if (dir == NULL) 193 dir = "."; 194 195 snprintf(filename, sizeof(filename), "%s/%s", dir, file); 196 ret = request_firmware(&fw, filename, ar->dev); 197 if (ret) 198 return ERR_PTR(ret); 199 200 return fw; 201} 202 203static int ath10k_push_board_ext_data(struct ath10k *ar, 204 const struct firmware *fw) 205{ 206 u32 board_data_size = QCA988X_BOARD_DATA_SZ; 207 u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ; 208 u32 board_ext_data_addr; 209 int ret; 210 211 ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr); 212 if (ret) { 213 ath10k_err("could not read board ext data addr (%d)\n", ret); 214 return ret; 215 } 216 217 ath10k_dbg(ATH10K_DBG_CORE, 218 "ath10k: Board extended Data download addr: 0x%x\n", 219 board_ext_data_addr); 220 221 if (board_ext_data_addr == 0) 222 return 0; 223 224 if (fw->size != (board_data_size + board_ext_data_size)) { 225 ath10k_err("invalid board (ext) data sizes %zu != %d+%d\n", 226 fw->size, board_data_size, board_ext_data_size); 227 return -EINVAL; 228 } 229 230 ret = ath10k_bmi_write_memory(ar, board_ext_data_addr, 231 fw->data + board_data_size, 232 board_ext_data_size); 233 if (ret) { 234 ath10k_err("could not write board ext data (%d)\n", ret); 235 return ret; 236 } 237 238 ret = ath10k_bmi_write32(ar, hi_board_ext_data_config, 239 (board_ext_data_size << 16) | 1); 240 if (ret) { 241 ath10k_err("could not write board ext data bit (%d)\n", ret); 242 return ret; 243 } 244 245 return 0; 246} 247 248static int ath10k_download_board_data(struct ath10k *ar) 249{ 250 const struct firmware *fw = ar->board_data; 251 u32 board_data_size = QCA988X_BOARD_DATA_SZ; 252 u32 address; 253 int ret; 254 255 ret = ath10k_push_board_ext_data(ar, fw); 256 if (ret) { 257 ath10k_err("could not push board ext data (%d)\n", ret); 258 goto exit; 259 } 260 261 ret = ath10k_bmi_read32(ar, hi_board_data, &address); 262 if (ret) { 263 ath10k_err("could not read board data addr (%d)\n", ret); 264 goto exit; 265 } 266 267 ret = ath10k_bmi_write_memory(ar, address, fw->data, 268 min_t(u32, board_data_size, fw->size)); 269 if (ret) { 270 ath10k_err("could not write board data (%d)\n", ret); 271 goto exit; 272 } 273 274 ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1); 275 if (ret) { 276 ath10k_err("could not write board data bit (%d)\n", ret); 277 goto exit; 278 } 279 280exit: 281 return ret; 282} 283 284static int ath10k_download_and_run_otp(struct ath10k *ar) 285{ 286 const struct firmware *fw = ar->otp; 287 u32 address = ar->hw_params.patch_load_addr; 288 u32 exec_param; 289 int ret; 290 291 /* OTP is optional */ 292 293 if (!ar->otp) 294 return 0; 295 296 ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size); 297 if (ret) { 298 ath10k_err("could not write otp (%d)\n", ret); 299 goto exit; 300 } 301 302 exec_param = 0; 303 ret = ath10k_bmi_execute(ar, address, &exec_param); 304 if (ret) { 305 ath10k_err("could not execute otp (%d)\n", ret); 306 goto exit; 307 } 308 309exit: 310 return ret; 311} 312 313static int ath10k_download_fw(struct ath10k *ar) 314{ 315 const struct firmware *fw = ar->firmware; 316 u32 address; 317 int ret; 318 319 address = ar->hw_params.patch_load_addr; 320 321 ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size); 322 if (ret) { 323 ath10k_err("could not write fw (%d)\n", ret); 324 goto exit; 325 } 326 327exit: 328 return ret; 329} 330 331static void ath10k_core_free_firmware_files(struct ath10k *ar) 332{ 333 if (ar->board_data && !IS_ERR(ar->board_data)) 334 release_firmware(ar->board_data); 335 336 if (ar->otp && !IS_ERR(ar->otp)) 337 release_firmware(ar->otp); 338 339 if (ar->firmware && !IS_ERR(ar->firmware)) 340 release_firmware(ar->firmware); 341 342 ar->board_data = NULL; 343 ar->otp = NULL; 344 ar->firmware = NULL; 345} 346 347static int ath10k_core_fetch_firmware_files(struct ath10k *ar) 348{ 349 int ret = 0; 350 351 if (ar->hw_params.fw.fw == NULL) { 352 ath10k_err("firmware file not defined\n"); 353 return -EINVAL; 354 } 355 356 if (ar->hw_params.fw.board == NULL) { 357 ath10k_err("board data file not defined"); 358 return -EINVAL; 359 } 360 361 ar->board_data = ath10k_fetch_fw_file(ar, 362 ar->hw_params.fw.dir, 363 ar->hw_params.fw.board); 364 if (IS_ERR(ar->board_data)) { 365 ret = PTR_ERR(ar->board_data); 366 ath10k_err("could not fetch board data (%d)\n", ret); 367 goto err; 368 } 369 370 ar->firmware = ath10k_fetch_fw_file(ar, 371 ar->hw_params.fw.dir, 372 ar->hw_params.fw.fw); 373 if (IS_ERR(ar->firmware)) { 374 ret = PTR_ERR(ar->firmware); 375 ath10k_err("could not fetch firmware (%d)\n", ret); 376 goto err; 377 } 378 379 /* OTP may be undefined. If so, don't fetch it at all */ 380 if (ar->hw_params.fw.otp == NULL) 381 return 0; 382 383 ar->otp = ath10k_fetch_fw_file(ar, 384 ar->hw_params.fw.dir, 385 ar->hw_params.fw.otp); 386 if (IS_ERR(ar->otp)) { 387 ret = PTR_ERR(ar->otp); 388 ath10k_err("could not fetch otp (%d)\n", ret); 389 goto err; 390 } 391 392 return 0; 393 394err: 395 ath10k_core_free_firmware_files(ar); 396 return ret; 397} 398 399static int ath10k_init_download_firmware(struct ath10k *ar) 400{ 401 int ret; 402 403 ret = ath10k_download_board_data(ar); 404 if (ret) 405 return ret; 406 407 ret = ath10k_download_and_run_otp(ar); 408 if (ret) 409 return ret; 410 411 ret = ath10k_download_fw(ar); 412 if (ret) 413 return ret; 414 415 return ret; 416} 417 418static int ath10k_init_uart(struct ath10k *ar) 419{ 420 int ret; 421 422 /* 423 * Explicitly setting UART prints to zero as target turns it on 424 * based on scratch registers. 425 */ 426 ret = ath10k_bmi_write32(ar, hi_serial_enable, 0); 427 if (ret) { 428 ath10k_warn("could not disable UART prints (%d)\n", ret); 429 return ret; 430 } 431 432 if (!uart_print) { 433 ath10k_info("UART prints disabled\n"); 434 return 0; 435 } 436 437 ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7); 438 if (ret) { 439 ath10k_warn("could not enable UART prints (%d)\n", ret); 440 return ret; 441 } 442 443 ret = ath10k_bmi_write32(ar, hi_serial_enable, 1); 444 if (ret) { 445 ath10k_warn("could not enable UART prints (%d)\n", ret); 446 return ret; 447 } 448 449 ath10k_info("UART prints enabled\n"); 450 return 0; 451} 452 453static int ath10k_init_hw_params(struct ath10k *ar) 454{ 455 const struct ath10k_hw_params *uninitialized_var(hw_params); 456 int i; 457 458 for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) { 459 hw_params = &ath10k_hw_params_list[i]; 460 461 if (hw_params->id == ar->target_version) 462 break; 463 } 464 465 if (i == ARRAY_SIZE(ath10k_hw_params_list)) { 466 ath10k_err("Unsupported hardware version: 0x%x\n", 467 ar->target_version); 468 return -EINVAL; 469 } 470 471 ar->hw_params = *hw_params; 472 473 ath10k_info("Hardware name %s version 0x%x\n", 474 ar->hw_params.name, ar->target_version); 475 476 return 0; 477} 478 479static void ath10k_core_restart(struct work_struct *work) 480{ 481 struct ath10k *ar = container_of(work, struct ath10k, restart_work); 482 483 mutex_lock(&ar->conf_mutex); 484 485 switch (ar->state) { 486 case ATH10K_STATE_ON: 487 ath10k_halt(ar); 488 ar->state = ATH10K_STATE_RESTARTING; 489 ieee80211_restart_hw(ar->hw); 490 break; 491 case ATH10K_STATE_OFF: 492 /* this can happen if driver is being unloaded */ 493 ath10k_warn("cannot restart a device that hasn't been started\n"); 494 break; 495 case ATH10K_STATE_RESTARTING: 496 case ATH10K_STATE_RESTARTED: 497 ar->state = ATH10K_STATE_WEDGED; 498 /* fall through */ 499 case ATH10K_STATE_WEDGED: 500 ath10k_warn("device is wedged, will not restart\n"); 501 break; 502 } 503 504 mutex_unlock(&ar->conf_mutex); 505} 506 507struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev, 508 const struct ath10k_hif_ops *hif_ops) 509{ 510 struct ath10k *ar; 511 512 ar = ath10k_mac_create(); 513 if (!ar) 514 return NULL; 515 516 ar->ath_common.priv = ar; 517 ar->ath_common.hw = ar->hw; 518 519 ar->p2p = !!ath10k_p2p; 520 ar->dev = dev; 521 522 ar->hif.priv = hif_priv; 523 ar->hif.ops = hif_ops; 524 525 init_completion(&ar->scan.started); 526 init_completion(&ar->scan.completed); 527 init_completion(&ar->scan.on_channel); 528 529 init_completion(&ar->install_key_done); 530 init_completion(&ar->vdev_setup_done); 531 532 setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar); 533 534 ar->workqueue = create_singlethread_workqueue("ath10k_wq"); 535 if (!ar->workqueue) 536 goto err_wq; 537 538 mutex_init(&ar->conf_mutex); 539 spin_lock_init(&ar->data_lock); 540 541 INIT_LIST_HEAD(&ar->peers); 542 init_waitqueue_head(&ar->peer_mapping_wq); 543 544 init_completion(&ar->offchan_tx_completed); 545 INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work); 546 skb_queue_head_init(&ar->offchan_tx_queue); 547 548 init_waitqueue_head(&ar->event_queue); 549 550 INIT_WORK(&ar->restart_work, ath10k_core_restart); 551 552 return ar; 553 554err_wq: 555 ath10k_mac_destroy(ar); 556 return NULL; 557} 558EXPORT_SYMBOL(ath10k_core_create); 559 560void ath10k_core_destroy(struct ath10k *ar) 561{ 562 flush_workqueue(ar->workqueue); 563 destroy_workqueue(ar->workqueue); 564 565 ath10k_mac_destroy(ar); 566} 567EXPORT_SYMBOL(ath10k_core_destroy); 568 569int ath10k_core_start(struct ath10k *ar) 570{ 571 int status; 572 573 ath10k_bmi_start(ar); 574 575 if (ath10k_init_configure_target(ar)) { 576 status = -EINVAL; 577 goto err; 578 } 579 580 status = ath10k_init_download_firmware(ar); 581 if (status) 582 goto err; 583 584 status = ath10k_init_uart(ar); 585 if (status) 586 goto err; 587 588 ar->htc.htc_ops.target_send_suspend_complete = 589 ath10k_send_suspend_complete; 590 591 status = ath10k_htc_init(ar); 592 if (status) { 593 ath10k_err("could not init HTC (%d)\n", status); 594 goto err; 595 } 596 597 status = ath10k_bmi_done(ar); 598 if (status) 599 goto err; 600 601 status = ath10k_wmi_attach(ar); 602 if (status) { 603 ath10k_err("WMI attach failed: %d\n", status); 604 goto err; 605 } 606 607 status = ath10k_htc_wait_target(&ar->htc); 608 if (status) 609 goto err_wmi_detach; 610 611 status = ath10k_htt_attach(ar); 612 if (status) { 613 ath10k_err("could not attach htt (%d)\n", status); 614 goto err_wmi_detach; 615 } 616 617 status = ath10k_init_connect_htc(ar); 618 if (status) 619 goto err_htt_detach; 620 621 ath10k_info("firmware %s booted\n", ar->hw->wiphy->fw_version); 622 623 status = ath10k_check_fw_version(ar); 624 if (status) 625 goto err_disconnect_htc; 626 627 status = ath10k_wmi_cmd_init(ar); 628 if (status) { 629 ath10k_err("could not send WMI init command (%d)\n", status); 630 goto err_disconnect_htc; 631 } 632 633 status = ath10k_wmi_wait_for_unified_ready(ar); 634 if (status <= 0) { 635 ath10k_err("wmi unified ready event not received\n"); 636 status = -ETIMEDOUT; 637 goto err_disconnect_htc; 638 } 639 640 status = ath10k_htt_attach_target(&ar->htt); 641 if (status) 642 goto err_disconnect_htc; 643 644 ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1; 645 646 return 0; 647 648err_disconnect_htc: 649 ath10k_htc_stop(&ar->htc); 650err_htt_detach: 651 ath10k_htt_detach(&ar->htt); 652err_wmi_detach: 653 ath10k_wmi_detach(ar); 654err: 655 return status; 656} 657EXPORT_SYMBOL(ath10k_core_start); 658 659void ath10k_core_stop(struct ath10k *ar) 660{ 661 ath10k_htc_stop(&ar->htc); 662 ath10k_htt_detach(&ar->htt); 663 ath10k_wmi_detach(ar); 664} 665EXPORT_SYMBOL(ath10k_core_stop); 666 667/* mac80211 manages fw/hw initialization through start/stop hooks. However in 668 * order to know what hw capabilities should be advertised to mac80211 it is 669 * necessary to load the firmware (and tear it down immediately since start 670 * hook will try to init it again) before registering */ 671static int ath10k_core_probe_fw(struct ath10k *ar) 672{ 673 struct bmi_target_info target_info; 674 int ret = 0; 675 676 ret = ath10k_hif_power_up(ar); 677 if (ret) { 678 ath10k_err("could not start pci hif (%d)\n", ret); 679 return ret; 680 } 681 682 memset(&target_info, 0, sizeof(target_info)); 683 ret = ath10k_bmi_get_target_info(ar, &target_info); 684 if (ret) { 685 ath10k_err("could not get target info (%d)\n", ret); 686 ath10k_hif_power_down(ar); 687 return ret; 688 } 689 690 ar->target_version = target_info.version; 691 ar->hw->wiphy->hw_version = target_info.version; 692 693 ret = ath10k_init_hw_params(ar); 694 if (ret) { 695 ath10k_err("could not get hw params (%d)\n", ret); 696 ath10k_hif_power_down(ar); 697 return ret; 698 } 699 700 ret = ath10k_core_fetch_firmware_files(ar); 701 if (ret) { 702 ath10k_err("could not fetch firmware files (%d)\n", ret); 703 ath10k_hif_power_down(ar); 704 return ret; 705 } 706 707 ret = ath10k_core_start(ar); 708 if (ret) { 709 ath10k_err("could not init core (%d)\n", ret); 710 ath10k_core_free_firmware_files(ar); 711 ath10k_hif_power_down(ar); 712 return ret; 713 } 714 715 ath10k_core_stop(ar); 716 ath10k_hif_power_down(ar); 717 return 0; 718} 719 720int ath10k_core_register(struct ath10k *ar) 721{ 722 int status; 723 724 status = ath10k_core_probe_fw(ar); 725 if (status) { 726 ath10k_err("could not probe fw (%d)\n", status); 727 return status; 728 } 729 730 status = ath10k_mac_register(ar); 731 if (status) { 732 ath10k_err("could not register to mac80211 (%d)\n", status); 733 goto err_release_fw; 734 } 735 736 status = ath10k_debug_create(ar); 737 if (status) { 738 ath10k_err("unable to initialize debugfs\n"); 739 goto err_unregister_mac; 740 } 741 742 return 0; 743 744err_unregister_mac: 745 ath10k_mac_unregister(ar); 746err_release_fw: 747 ath10k_core_free_firmware_files(ar); 748 return status; 749} 750EXPORT_SYMBOL(ath10k_core_register); 751 752void ath10k_core_unregister(struct ath10k *ar) 753{ 754 /* We must unregister from mac80211 before we stop HTC and HIF. 755 * Otherwise we will fail to submit commands to FW and mac80211 will be 756 * unhappy about callback failures. */ 757 ath10k_mac_unregister(ar); 758 ath10k_core_free_firmware_files(ar); 759} 760EXPORT_SYMBOL(ath10k_core_unregister); 761 762MODULE_AUTHOR("Qualcomm Atheros"); 763MODULE_DESCRIPTION("Core module for QCA988X PCIe devices."); 764MODULE_LICENSE("Dual BSD/GPL"); 765