1 // SPDX-License-Identifier: BSD-3-Clause-Clear
3 * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
6 #include <linux/module.h>
7 #include <linux/slab.h>
8 #include <linux/remoteproc.h>
9 #include <linux/firmware.h>
16 unsigned int ath11k_debug_mask;
17 EXPORT_SYMBOL(ath11k_debug_mask);
18 module_param_named(debug_mask, ath11k_debug_mask, uint, 0644);
19 MODULE_PARM_DESC(debug_mask, "Debugging mask");
21 static unsigned int ath11k_crypto_mode;
22 module_param_named(crypto_mode, ath11k_crypto_mode, uint, 0644);
23 MODULE_PARM_DESC(crypto_mode, "crypto mode: 0-hardware, 1-software");
25 /* frame mode values are mapped as per enum ath11k_hw_txrx_mode */
26 unsigned int ath11k_frame_mode = ATH11K_HW_TXRX_NATIVE_WIFI;
27 module_param_named(frame_mode, ath11k_frame_mode, uint, 0644);
28 MODULE_PARM_DESC(frame_mode,
29 "Datapath frame mode (0: raw, 1: native wifi (default), 2: ethernet)");
31 static const struct ath11k_hw_params ath11k_hw_params[] = {
33 .hw_rev = ATH11K_HW_IPQ8074,
34 .name = "ipq8074 hw2.0",
36 .dir = "IPQ8074/hw2.0",
37 .board_size = 256 * 1024,
38 .cal_size = 256 * 1024,
41 .bdf_addr = 0x4B0C0000,
42 .hw_ops = &ipq8074_ops,
43 .ring_mask = &ath11k_hw_ring_mask_ipq8074,
44 .internal_sleep_clock = false,
45 .regs = &ipq8074_regs,
46 .host_ce_config = ath11k_host_ce_config_ipq8074,
48 .target_ce_config = ath11k_target_ce_config_wlan_ipq8074,
49 .target_ce_count = 11,
50 .svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_ipq8074,
51 .svc_to_ce_map_len = 21,
52 .single_pdev_only = false,
53 .needs_band_to_mac = true,
54 .rxdma1_enable = true,
55 .num_rxmda_per_pdev = 1,
56 .rx_mac_buf_ring = false,
57 .vdev_start_delay = false,
58 .htt_peer_map_v2 = true,
62 .interface_modes = BIT(NL80211_IFTYPE_STATION) |
63 BIT(NL80211_IFTYPE_AP) |
64 BIT(NL80211_IFTYPE_MESH_POINT),
67 .hw_rev = ATH11K_HW_IPQ6018_HW10,
68 .name = "ipq6018 hw1.0",
70 .dir = "IPQ6018/hw1.0",
71 .board_size = 256 * 1024,
72 .cal_size = 256 * 1024,
75 .bdf_addr = 0x4ABC0000,
76 .hw_ops = &ipq6018_ops,
77 .ring_mask = &ath11k_hw_ring_mask_ipq8074,
78 .internal_sleep_clock = false,
79 .regs = &ipq8074_regs,
80 .host_ce_config = ath11k_host_ce_config_ipq8074,
82 .target_ce_config = ath11k_target_ce_config_wlan_ipq8074,
83 .target_ce_count = 11,
84 .svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_ipq6018,
85 .svc_to_ce_map_len = 19,
86 .single_pdev_only = false,
87 .needs_band_to_mac = true,
88 .rxdma1_enable = true,
89 .num_rxmda_per_pdev = 1,
90 .rx_mac_buf_ring = false,
91 .vdev_start_delay = false,
92 .htt_peer_map_v2 = true,
96 .interface_modes = BIT(NL80211_IFTYPE_STATION) |
97 BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_MESH_POINT),
101 .name = "qca6390 hw2.0",
102 .hw_rev = ATH11K_HW_QCA6390_HW20,
104 .dir = "QCA6390/hw2.0",
105 .board_size = 256 * 1024,
106 .cal_size = 256 * 1024,
109 .bdf_addr = 0x4B0C0000,
110 .hw_ops = &qca6390_ops,
111 .ring_mask = &ath11k_hw_ring_mask_qca6390,
112 .internal_sleep_clock = true,
113 .regs = &qca6390_regs,
114 .host_ce_config = ath11k_host_ce_config_qca6390,
116 .target_ce_config = ath11k_target_ce_config_wlan_qca6390,
117 .target_ce_count = 9,
118 .svc_to_ce_map = ath11k_target_service_to_ce_map_wlan_qca6390,
119 .svc_to_ce_map_len = 14,
120 .single_pdev_only = true,
121 .needs_band_to_mac = false,
122 .rxdma1_enable = false,
123 .num_rxmda_per_pdev = 2,
124 .rx_mac_buf_ring = true,
125 .vdev_start_delay = true,
126 .htt_peer_map_v2 = false,
128 .spectral_fft_sz = 0,
130 .interface_modes = BIT(NL80211_IFTYPE_STATION) |
131 BIT(NL80211_IFTYPE_AP),
135 static int ath11k_core_create_board_name(struct ath11k_base *ab, char *name,
138 scnprintf(name, name_len,
139 "bus=%s,qmi-chip-id=%d,qmi-board-id=%d",
140 ath11k_bus_str(ab->hif.bus),
141 ab->qmi.target.chip_id,
142 ab->qmi.target.board_id);
144 ath11k_dbg(ab, ATH11K_DBG_BOOT, "boot using board name '%s'\n", name);
149 const struct firmware *ath11k_core_firmware_request(struct ath11k_base *ab,
152 const struct firmware *fw;
157 return ERR_PTR(-ENOENT);
159 ath11k_core_create_firmware_path(ab, file, path, sizeof(path));
161 ret = firmware_request_nowarn(&fw, path, ab->dev);
165 ath11k_dbg(ab, ATH11K_DBG_BOOT, "boot firmware request %s size %zu\n",
171 void ath11k_core_free_bdf(struct ath11k_base *ab, struct ath11k_board_data *bd)
174 release_firmware(bd->fw);
176 memset(bd, 0, sizeof(*bd));
179 static int ath11k_core_parse_bd_ie_board(struct ath11k_base *ab,
180 struct ath11k_board_data *bd,
181 const void *buf, size_t buf_len,
182 const char *boardname,
185 const struct ath11k_fw_ie *hdr;
186 bool name_match_found;
187 int ret, board_ie_id;
189 const void *board_ie_data;
191 name_match_found = false;
193 /* go through ATH11K_BD_IE_BOARD_ elements */
194 while (buf_len > sizeof(struct ath11k_fw_ie)) {
196 board_ie_id = le32_to_cpu(hdr->id);
197 board_ie_len = le32_to_cpu(hdr->len);
198 board_ie_data = hdr->data;
200 buf_len -= sizeof(*hdr);
203 if (buf_len < ALIGN(board_ie_len, 4)) {
204 ath11k_err(ab, "invalid ATH11K_BD_IE_BOARD length: %zu < %zu\n",
205 buf_len, ALIGN(board_ie_len, 4));
210 switch (board_ie_id) {
211 case ATH11K_BD_IE_BOARD_NAME:
212 ath11k_dbg_dump(ab, ATH11K_DBG_BOOT, "board name", "",
213 board_ie_data, board_ie_len);
215 if (board_ie_len != strlen(boardname))
218 ret = memcmp(board_ie_data, boardname, strlen(boardname));
222 name_match_found = true;
223 ath11k_dbg(ab, ATH11K_DBG_BOOT,
224 "boot found match for name '%s'",
227 case ATH11K_BD_IE_BOARD_DATA:
228 if (!name_match_found)
232 ath11k_dbg(ab, ATH11K_DBG_BOOT,
233 "boot found board data for '%s'", boardname);
235 bd->data = board_ie_data;
236 bd->len = board_ie_len;
241 ath11k_warn(ab, "unknown ATH11K_BD_IE_BOARD found: %d\n",
246 /* jump over the padding */
247 board_ie_len = ALIGN(board_ie_len, 4);
249 buf_len -= board_ie_len;
260 static int ath11k_core_fetch_board_data_api_n(struct ath11k_base *ab,
261 struct ath11k_board_data *bd,
262 const char *boardname)
264 size_t len, magic_len;
266 char *filename, filepath[100];
268 struct ath11k_fw_ie *hdr;
271 filename = ATH11K_BOARD_API2_FILE;
274 bd->fw = ath11k_core_firmware_request(ab, filename);
277 return PTR_ERR(bd->fw);
282 ath11k_core_create_firmware_path(ab, filename,
283 filepath, sizeof(filepath));
285 /* magic has extra null byte padded */
286 magic_len = strlen(ATH11K_BOARD_MAGIC) + 1;
287 if (len < magic_len) {
288 ath11k_err(ab, "failed to find magic value in %s, file too short: %zu\n",
294 if (memcmp(data, ATH11K_BOARD_MAGIC, magic_len)) {
295 ath11k_err(ab, "found invalid board magic\n");
300 /* magic is padded to 4 bytes */
301 magic_len = ALIGN(magic_len, 4);
302 if (len < magic_len) {
303 ath11k_err(ab, "failed: %s too small to contain board data, len: %zu\n",
312 while (len > sizeof(struct ath11k_fw_ie)) {
313 hdr = (struct ath11k_fw_ie *)data;
314 ie_id = le32_to_cpu(hdr->id);
315 ie_len = le32_to_cpu(hdr->len);
320 if (len < ALIGN(ie_len, 4)) {
321 ath11k_err(ab, "invalid length for board ie_id %d ie_len %zu len %zu\n",
327 case ATH11K_BD_IE_BOARD:
328 ret = ath11k_core_parse_bd_ie_board(ab, bd, data,
333 /* no match found, continue */
336 /* there was an error, bail out */
338 /* either found or error, so stop searching */
342 /* jump over the padding */
343 ie_len = ALIGN(ie_len, 4);
350 if (!bd->data || !bd->len) {
352 "failed to fetch board data for %s from %s\n",
353 boardname, filepath);
361 ath11k_core_free_bdf(ab, bd);
365 static int ath11k_core_fetch_board_data_api_1(struct ath11k_base *ab,
366 struct ath11k_board_data *bd)
368 bd->fw = ath11k_core_firmware_request(ab, ATH11K_DEFAULT_BOARD_FILE);
370 return PTR_ERR(bd->fw);
372 bd->data = bd->fw->data;
373 bd->len = bd->fw->size;
378 #define BOARD_NAME_SIZE 100
379 int ath11k_core_fetch_bdf(struct ath11k_base *ab, struct ath11k_board_data *bd)
381 char boardname[BOARD_NAME_SIZE];
384 ret = ath11k_core_create_board_name(ab, boardname, BOARD_NAME_SIZE);
386 ath11k_err(ab, "failed to create board name: %d", ret);
391 ret = ath11k_core_fetch_board_data_api_n(ab, bd, boardname);
396 ret = ath11k_core_fetch_board_data_api_1(ab, bd);
398 ath11k_err(ab, "failed to fetch board-2.bin or board.bin from %s\n",
399 ab->hw_params.fw.dir);
404 ath11k_dbg(ab, ATH11K_DBG_BOOT, "using board api %d\n", ab->bd_api);
408 static void ath11k_core_stop(struct ath11k_base *ab)
410 if (!test_bit(ATH11K_FLAG_CRASH_FLUSH, &ab->dev_flags))
411 ath11k_qmi_firmware_stop(ab);
413 ath11k_wmi_detach(ab);
414 ath11k_dp_pdev_reo_cleanup(ab);
416 /* De-Init of components as needed */
419 static int ath11k_core_soc_create(struct ath11k_base *ab)
423 ret = ath11k_qmi_init_service(ab);
425 ath11k_err(ab, "failed to initialize qmi :%d\n", ret);
429 ret = ath11k_debugfs_soc_create(ab);
431 ath11k_err(ab, "failed to create ath11k debugfs\n");
435 ret = ath11k_hif_power_up(ab);
437 ath11k_err(ab, "failed to power up :%d\n", ret);
438 goto err_debugfs_reg;
444 ath11k_debugfs_soc_destroy(ab);
446 ath11k_qmi_deinit_service(ab);
450 static void ath11k_core_soc_destroy(struct ath11k_base *ab)
452 ath11k_debugfs_soc_destroy(ab);
455 ath11k_qmi_deinit_service(ab);
458 static int ath11k_core_pdev_create(struct ath11k_base *ab)
462 ret = ath11k_debugfs_pdev_create(ab);
464 ath11k_err(ab, "failed to create core pdev debugfs: %d\n", ret);
468 ret = ath11k_mac_register(ab);
470 ath11k_err(ab, "failed register the radio with mac80211: %d\n", ret);
474 ret = ath11k_dp_pdev_alloc(ab);
476 ath11k_err(ab, "failed to attach DP pdev: %d\n", ret);
477 goto err_mac_unregister;
480 ret = ath11k_thermal_register(ab);
482 ath11k_err(ab, "could not register thermal device: %d\n",
484 goto err_dp_pdev_free;
487 ret = ath11k_spectral_init(ab);
489 ath11k_err(ab, "failed to init spectral %d\n", ret);
490 goto err_thermal_unregister;
495 err_thermal_unregister:
496 ath11k_thermal_unregister(ab);
498 ath11k_dp_pdev_free(ab);
500 ath11k_mac_unregister(ab);
502 ath11k_debugfs_pdev_destroy(ab);
507 static void ath11k_core_pdev_destroy(struct ath11k_base *ab)
509 ath11k_spectral_deinit(ab);
510 ath11k_thermal_unregister(ab);
511 ath11k_mac_unregister(ab);
512 ath11k_hif_irq_disable(ab);
513 ath11k_dp_pdev_free(ab);
514 ath11k_debugfs_pdev_destroy(ab);
517 static int ath11k_core_start(struct ath11k_base *ab,
518 enum ath11k_firmware_mode mode)
522 ret = ath11k_qmi_firmware_start(ab, mode);
524 ath11k_err(ab, "failed to attach wmi: %d\n", ret);
528 ret = ath11k_wmi_attach(ab);
530 ath11k_err(ab, "failed to attach wmi: %d\n", ret);
531 goto err_firmware_stop;
534 ret = ath11k_htc_init(ab);
536 ath11k_err(ab, "failed to init htc: %d\n", ret);
540 ret = ath11k_hif_start(ab);
542 ath11k_err(ab, "failed to start HIF: %d\n", ret);
546 ret = ath11k_htc_wait_target(&ab->htc);
548 ath11k_err(ab, "failed to connect to HTC: %d\n", ret);
552 ret = ath11k_dp_htt_connect(&ab->dp);
554 ath11k_err(ab, "failed to connect to HTT: %d\n", ret);
558 ret = ath11k_wmi_connect(ab);
560 ath11k_err(ab, "failed to connect wmi: %d\n", ret);
564 ret = ath11k_htc_start(&ab->htc);
566 ath11k_err(ab, "failed to start HTC: %d\n", ret);
570 ret = ath11k_wmi_wait_for_service_ready(ab);
572 ath11k_err(ab, "failed to receive wmi service ready event: %d\n",
577 ret = ath11k_mac_allocate(ab);
579 ath11k_err(ab, "failed to create new hw device with mac80211 :%d\n",
584 ath11k_dp_pdev_pre_alloc(ab);
586 ret = ath11k_dp_pdev_reo_setup(ab);
588 ath11k_err(ab, "failed to initialize reo destination rings: %d\n", ret);
589 goto err_mac_destroy;
592 ret = ath11k_wmi_cmd_init(ab);
594 ath11k_err(ab, "failed to send wmi init cmd: %d\n", ret);
595 goto err_reo_cleanup;
598 ret = ath11k_wmi_wait_for_unified_ready(ab);
600 ath11k_err(ab, "failed to receive wmi unified ready event: %d\n",
602 goto err_reo_cleanup;
605 ret = ath11k_dp_tx_htt_h2t_ver_req_msg(ab);
607 ath11k_err(ab, "failed to send htt version request message: %d\n",
609 goto err_reo_cleanup;
615 ath11k_dp_pdev_reo_cleanup(ab);
617 ath11k_mac_destroy(ab);
621 ath11k_wmi_detach(ab);
623 ath11k_qmi_firmware_stop(ab);
628 int ath11k_core_qmi_firmware_ready(struct ath11k_base *ab)
632 ret = ath11k_ce_init_pipes(ab);
634 ath11k_err(ab, "failed to initialize CE: %d\n", ret);
638 ret = ath11k_dp_alloc(ab);
640 ath11k_err(ab, "failed to init DP: %d\n", ret);
644 switch (ath11k_crypto_mode) {
645 case ATH11K_CRYPT_MODE_SW:
646 set_bit(ATH11K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags);
647 set_bit(ATH11K_FLAG_RAW_MODE, &ab->dev_flags);
649 case ATH11K_CRYPT_MODE_HW:
650 clear_bit(ATH11K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags);
651 clear_bit(ATH11K_FLAG_RAW_MODE, &ab->dev_flags);
654 ath11k_info(ab, "invalid crypto_mode: %d\n", ath11k_crypto_mode);
658 if (ath11k_frame_mode == ATH11K_HW_TXRX_RAW)
659 set_bit(ATH11K_FLAG_RAW_MODE, &ab->dev_flags);
661 mutex_lock(&ab->core_lock);
662 ret = ath11k_core_start(ab, ATH11K_FIRMWARE_MODE_NORMAL);
664 ath11k_err(ab, "failed to start core: %d\n", ret);
668 ret = ath11k_core_pdev_create(ab);
670 ath11k_err(ab, "failed to create pdev core: %d\n", ret);
673 ath11k_hif_irq_enable(ab);
674 mutex_unlock(&ab->core_lock);
679 ath11k_core_stop(ab);
680 ath11k_mac_destroy(ab);
683 mutex_unlock(&ab->core_lock);
687 static int ath11k_core_reconfigure_on_crash(struct ath11k_base *ab)
691 mutex_lock(&ab->core_lock);
692 ath11k_thermal_unregister(ab);
693 ath11k_hif_irq_disable(ab);
694 ath11k_dp_pdev_free(ab);
695 ath11k_spectral_deinit(ab);
697 ath11k_wmi_detach(ab);
698 ath11k_dp_pdev_reo_cleanup(ab);
699 mutex_unlock(&ab->core_lock);
702 ath11k_hal_srng_deinit(ab);
704 ab->free_vdev_map = (1LL << (ab->num_radios * TARGET_NUM_VDEVS)) - 1;
706 ret = ath11k_hal_srng_init(ab);
710 clear_bit(ATH11K_FLAG_CRASH_FLUSH, &ab->dev_flags);
712 ret = ath11k_core_qmi_firmware_ready(ab);
714 goto err_hal_srng_deinit;
716 clear_bit(ATH11K_FLAG_RECOVERY, &ab->dev_flags);
721 ath11k_hal_srng_deinit(ab);
725 void ath11k_core_halt(struct ath11k *ar)
727 struct ath11k_base *ab = ar->ab;
729 lockdep_assert_held(&ar->conf_mutex);
731 ar->num_created_vdevs = 0;
732 ar->allocated_vdev_map = 0;
734 ath11k_mac_scan_finish(ar);
735 ath11k_mac_peer_cleanup_all(ar);
736 cancel_delayed_work_sync(&ar->scan.timeout);
737 cancel_work_sync(&ar->regd_update_work);
739 rcu_assign_pointer(ab->pdevs_active[ar->pdev_idx], NULL);
741 INIT_LIST_HEAD(&ar->arvifs);
742 idr_init(&ar->txmgmt_idr);
745 static void ath11k_core_restart(struct work_struct *work)
747 struct ath11k_base *ab = container_of(work, struct ath11k_base, restart_work);
749 struct ath11k_pdev *pdev;
752 spin_lock_bh(&ab->base_lock);
753 ab->stats.fw_crash_counter++;
754 spin_unlock_bh(&ab->base_lock);
756 for (i = 0; i < ab->num_radios; i++) {
757 pdev = &ab->pdevs[i];
759 if (!ar || ar->state == ATH11K_STATE_OFF)
762 ieee80211_stop_queues(ar->hw);
763 ath11k_mac_drain_tx(ar);
764 complete(&ar->scan.started);
765 complete(&ar->scan.completed);
766 complete(&ar->peer_assoc_done);
767 complete(&ar->install_key_done);
768 complete(&ar->vdev_setup_done);
769 complete(&ar->bss_survey_done);
770 complete(&ar->thermal.wmi_sync);
772 wake_up(&ar->dp.tx_empty_waitq);
773 idr_for_each(&ar->txmgmt_idr,
774 ath11k_mac_tx_mgmt_pending_free, ar);
775 idr_destroy(&ar->txmgmt_idr);
778 wake_up(&ab->wmi_ab.tx_credits_wq);
779 wake_up(&ab->peer_mapping_wq);
781 ret = ath11k_core_reconfigure_on_crash(ab);
783 ath11k_err(ab, "failed to reconfigure driver on crash recovery\n");
787 for (i = 0; i < ab->num_radios; i++) {
788 pdev = &ab->pdevs[i];
790 if (!ar || ar->state == ATH11K_STATE_OFF)
793 mutex_lock(&ar->conf_mutex);
796 case ATH11K_STATE_ON:
797 ar->state = ATH11K_STATE_RESTARTING;
798 ath11k_core_halt(ar);
799 ieee80211_restart_hw(ar->hw);
801 case ATH11K_STATE_OFF:
803 "cannot restart radio %d that hasn't been started\n",
806 case ATH11K_STATE_RESTARTING:
808 case ATH11K_STATE_RESTARTED:
809 ar->state = ATH11K_STATE_WEDGED;
811 case ATH11K_STATE_WEDGED:
813 "device is wedged, will not restart radio %d\n", i);
816 mutex_unlock(&ar->conf_mutex);
818 complete(&ab->driver_recovery);
821 static int ath11k_init_hw_params(struct ath11k_base *ab)
823 const struct ath11k_hw_params *hw_params = NULL;
826 for (i = 0; i < ARRAY_SIZE(ath11k_hw_params); i++) {
827 hw_params = &ath11k_hw_params[i];
829 if (hw_params->hw_rev == ab->hw_rev)
833 if (i == ARRAY_SIZE(ath11k_hw_params)) {
834 ath11k_err(ab, "Unsupported hardware version: 0x%x\n", ab->hw_rev);
838 ab->hw_params = *hw_params;
840 ath11k_dbg(ab, ATH11K_DBG_BOOT, "Hardware name %s\n", ab->hw_params.name);
845 int ath11k_core_pre_init(struct ath11k_base *ab)
849 ret = ath11k_init_hw_params(ab);
851 ath11k_err(ab, "failed to get hw params: %d\n", ret);
857 EXPORT_SYMBOL(ath11k_core_pre_init);
859 int ath11k_core_init(struct ath11k_base *ab)
863 ret = ath11k_core_soc_create(ab);
865 ath11k_err(ab, "failed to create soc core: %d\n", ret);
871 EXPORT_SYMBOL(ath11k_core_init);
873 void ath11k_core_deinit(struct ath11k_base *ab)
875 mutex_lock(&ab->core_lock);
877 ath11k_core_pdev_destroy(ab);
878 ath11k_core_stop(ab);
880 mutex_unlock(&ab->core_lock);
882 ath11k_hif_power_down(ab);
883 ath11k_mac_destroy(ab);
884 ath11k_core_soc_destroy(ab);
886 EXPORT_SYMBOL(ath11k_core_deinit);
888 void ath11k_core_free(struct ath11k_base *ab)
892 EXPORT_SYMBOL(ath11k_core_free);
894 struct ath11k_base *ath11k_core_alloc(struct device *dev, size_t priv_size,
896 const struct ath11k_bus_params *bus_params)
898 struct ath11k_base *ab;
900 ab = kzalloc(sizeof(*ab) + priv_size, GFP_KERNEL);
904 init_completion(&ab->driver_recovery);
906 ab->workqueue = create_singlethread_workqueue("ath11k_wq");
910 mutex_init(&ab->core_lock);
911 spin_lock_init(&ab->base_lock);
913 INIT_LIST_HEAD(&ab->peers);
914 init_waitqueue_head(&ab->peer_mapping_wq);
915 init_waitqueue_head(&ab->wmi_ab.tx_credits_wq);
916 INIT_WORK(&ab->restart_work, ath11k_core_restart);
917 timer_setup(&ab->rx_replenish_retry, ath11k_ce_rx_replenish_retry, 0);
919 ab->bus_params = *bus_params;
928 EXPORT_SYMBOL(ath11k_core_alloc);
930 MODULE_DESCRIPTION("Core module for Qualcomm Atheros 802.11ax wireless LAN cards.");
931 MODULE_LICENSE("Dual BSD/GPL");