1 /* SPDX-License-Identifier: BSD-3-Clause-Clear */
2 /*
3  * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
4  * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
5  */
6 
7 #ifndef ATH11K_CORE_H
8 #define ATH11K_CORE_H
9 
10 #include <linux/types.h>
11 #include <linux/interrupt.h>
12 #include <linux/irq.h>
13 #include <linux/bitfield.h>
14 #include <linux/dmi.h>
15 #include <linux/ctype.h>
16 #include <linux/rhashtable.h>
17 #include <linux/average.h>
18 #include "qmi.h"
19 #include "htc.h"
20 #include "wmi.h"
21 #include "hal.h"
22 #include "dp.h"
23 #include "ce.h"
24 #include "mac.h"
25 #include "hw.h"
26 #include "hal_rx.h"
27 #include "reg.h"
28 #include "thermal.h"
29 #include "dbring.h"
30 #include "spectral.h"
31 #include "wow.h"
32 
33 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
34 
35 #define ATH11K_TX_MGMT_NUM_PENDING_MAX	512
36 
37 #define ATH11K_TX_MGMT_TARGET_MAX_SUPPORT_WMI 64
38 
39 /* Pending management packets threshold for dropping probe responses */
40 #define ATH11K_PRB_RSP_DROP_THRESHOLD ((ATH11K_TX_MGMT_TARGET_MAX_SUPPORT_WMI * 3) / 4)
41 
42 #define ATH11K_INVALID_HW_MAC_ID	0xFF
43 #define ATH11K_CONNECTION_LOSS_HZ	(3 * HZ)
44 
45 /* SMBIOS type containing Board Data File Name Extension */
46 #define ATH11K_SMBIOS_BDF_EXT_TYPE 0xF8
47 
48 /* SMBIOS type structure length (excluding strings-set) */
49 #define ATH11K_SMBIOS_BDF_EXT_LENGTH 0x9
50 
51 /* The magic used by QCA spec */
52 #define ATH11K_SMBIOS_BDF_EXT_MAGIC "BDF_"
53 
54 extern unsigned int ath11k_frame_mode;
55 
56 #define ATH11K_SCAN_TIMEOUT_HZ (20 * HZ)
57 
58 #define ATH11K_MON_TIMER_INTERVAL  10
59 #define ATH11K_RESET_TIMEOUT_HZ (20 * HZ)
60 #define ATH11K_RESET_MAX_FAIL_COUNT_FIRST 3
61 #define ATH11K_RESET_MAX_FAIL_COUNT_FINAL 5
62 #define ATH11K_RESET_FAIL_TIMEOUT_HZ (20 * HZ)
63 #define ATH11K_RECONFIGURE_TIMEOUT_HZ (10 * HZ)
64 #define ATH11K_RECOVER_START_TIMEOUT_HZ (20 * HZ)
65 
66 enum ath11k_supported_bw {
67 	ATH11K_BW_20	= 0,
68 	ATH11K_BW_40	= 1,
69 	ATH11K_BW_80	= 2,
70 	ATH11K_BW_160	= 3,
71 };
72 
73 enum ath11k_bdf_search {
74 	ATH11K_BDF_SEARCH_DEFAULT,
75 	ATH11K_BDF_SEARCH_BUS_AND_BOARD,
76 };
77 
78 enum wme_ac {
79 	WME_AC_BE,
80 	WME_AC_BK,
81 	WME_AC_VI,
82 	WME_AC_VO,
83 	WME_NUM_AC
84 };
85 
86 #define ATH11K_HT_MCS_MAX	7
87 #define ATH11K_VHT_MCS_MAX	9
88 #define ATH11K_HE_MCS_MAX	11
89 
90 enum ath11k_crypt_mode {
91 	/* Only use hardware crypto engine */
92 	ATH11K_CRYPT_MODE_HW,
93 	/* Only use software crypto */
94 	ATH11K_CRYPT_MODE_SW,
95 };
96 
97 static inline enum wme_ac ath11k_tid_to_ac(u32 tid)
98 {
99 	return (((tid == 0) || (tid == 3)) ? WME_AC_BE :
100 		((tid == 1) || (tid == 2)) ? WME_AC_BK :
101 		((tid == 4) || (tid == 5)) ? WME_AC_VI :
102 		WME_AC_VO);
103 }
104 
105 enum ath11k_skb_flags {
106 	ATH11K_SKB_HW_80211_ENCAP = BIT(0),
107 	ATH11K_SKB_CIPHER_SET = BIT(1),
108 };
109 
110 struct ath11k_skb_cb {
111 	dma_addr_t paddr;
112 	u8 eid;
113 	u8 flags;
114 	u32 cipher;
115 	struct ath11k *ar;
116 	struct ieee80211_vif *vif;
117 } __packed;
118 
119 struct ath11k_skb_rxcb {
120 	dma_addr_t paddr;
121 	bool is_first_msdu;
122 	bool is_last_msdu;
123 	bool is_continuation;
124 	bool is_mcbc;
125 	bool is_eapol;
126 	struct hal_rx_desc *rx_desc;
127 	u8 err_rel_src;
128 	u8 err_code;
129 	u8 mac_id;
130 	u8 unmapped;
131 	u8 is_frag;
132 	u8 tid;
133 	u16 peer_id;
134 	u16 seq_no;
135 };
136 
137 enum ath11k_hw_rev {
138 	ATH11K_HW_IPQ8074,
139 	ATH11K_HW_QCA6390_HW20,
140 	ATH11K_HW_IPQ6018_HW10,
141 	ATH11K_HW_QCN9074_HW10,
142 	ATH11K_HW_WCN6855_HW20,
143 	ATH11K_HW_WCN6855_HW21,
144 	ATH11K_HW_WCN6750_HW10,
145 };
146 
147 enum ath11k_firmware_mode {
148 	/* the default mode, standard 802.11 functionality */
149 	ATH11K_FIRMWARE_MODE_NORMAL,
150 
151 	/* factory tests etc */
152 	ATH11K_FIRMWARE_MODE_FTM,
153 
154 	/* Cold boot calibration */
155 	ATH11K_FIRMWARE_MODE_COLD_BOOT = 7,
156 };
157 
158 extern bool ath11k_cold_boot_cal;
159 
160 #define ATH11K_IRQ_NUM_MAX 52
161 #define ATH11K_EXT_IRQ_NUM_MAX	16
162 
163 struct ath11k_ext_irq_grp {
164 	struct ath11k_base *ab;
165 	u32 irqs[ATH11K_EXT_IRQ_NUM_MAX];
166 	u32 num_irq;
167 	u32 grp_id;
168 	u64 timestamp;
169 	bool napi_enabled;
170 	struct napi_struct napi;
171 	struct net_device napi_ndev;
172 };
173 
174 enum ath11k_smbios_cc_type {
175 	/* disable country code setting from SMBIOS */
176 	ATH11K_SMBIOS_CC_DISABLE = 0,
177 
178 	/* set country code by ANSI country name, based on ISO3166-1 alpha2 */
179 	ATH11K_SMBIOS_CC_ISO = 1,
180 
181 	/* worldwide regdomain */
182 	ATH11K_SMBIOS_CC_WW = 2,
183 };
184 
185 struct ath11k_smbios_bdf {
186 	struct dmi_header hdr;
187 
188 	u8 features_disabled;
189 
190 	/* enum ath11k_smbios_cc_type */
191 	u8 country_code_flag;
192 
193 	/* To set specific country, you need to set country code
194 	 * flag=ATH11K_SMBIOS_CC_ISO first, then if country is United
195 	 * States, then country code value = 0x5553 ("US",'U' = 0x55, 'S'=
196 	 * 0x53). To set country to INDONESIA, then country code value =
197 	 * 0x4944 ("IN", 'I'=0x49, 'D'=0x44). If country code flag =
198 	 * ATH11K_SMBIOS_CC_WW, then you can use worldwide regulatory
199 	 * setting.
200 	 */
201 	u16 cc_code;
202 
203 	u8 bdf_enabled;
204 	u8 bdf_ext[];
205 } __packed;
206 
207 #define HEHANDLE_CAP_PHYINFO_SIZE       3
208 #define HECAP_PHYINFO_SIZE              9
209 #define HECAP_MACINFO_SIZE              5
210 #define HECAP_TXRX_MCS_NSS_SIZE         2
211 #define HECAP_PPET16_PPET8_MAX_SIZE     25
212 
213 #define HE_PPET16_PPET8_SIZE            8
214 
215 /* 802.11ax PPE (PPDU packet Extension) threshold */
216 struct he_ppe_threshold {
217 	u32 numss_m1;
218 	u32 ru_mask;
219 	u32 ppet16_ppet8_ru3_ru0[HE_PPET16_PPET8_SIZE];
220 };
221 
222 struct ath11k_he {
223 	u8 hecap_macinfo[HECAP_MACINFO_SIZE];
224 	u32 hecap_rxmcsnssmap;
225 	u32 hecap_txmcsnssmap;
226 	u32 hecap_phyinfo[HEHANDLE_CAP_PHYINFO_SIZE];
227 	struct he_ppe_threshold   hecap_ppet;
228 	u32 heop_param;
229 };
230 
231 #define MAX_RADIOS 3
232 
233 enum {
234 	WMI_HOST_TP_SCALE_MAX   = 0,
235 	WMI_HOST_TP_SCALE_50    = 1,
236 	WMI_HOST_TP_SCALE_25    = 2,
237 	WMI_HOST_TP_SCALE_12    = 3,
238 	WMI_HOST_TP_SCALE_MIN   = 4,
239 	WMI_HOST_TP_SCALE_SIZE   = 5,
240 };
241 
242 enum ath11k_scan_state {
243 	ATH11K_SCAN_IDLE,
244 	ATH11K_SCAN_STARTING,
245 	ATH11K_SCAN_RUNNING,
246 	ATH11K_SCAN_ABORTING,
247 };
248 
249 enum ath11k_11d_state {
250 	ATH11K_11D_IDLE,
251 	ATH11K_11D_PREPARING,
252 	ATH11K_11D_RUNNING,
253 };
254 
255 enum ath11k_dev_flags {
256 	ATH11K_CAC_RUNNING,
257 	ATH11K_FLAG_CORE_REGISTERED,
258 	ATH11K_FLAG_CRASH_FLUSH,
259 	ATH11K_FLAG_RAW_MODE,
260 	ATH11K_FLAG_HW_CRYPTO_DISABLED,
261 	ATH11K_FLAG_BTCOEX,
262 	ATH11K_FLAG_RECOVERY,
263 	ATH11K_FLAG_UNREGISTERING,
264 	ATH11K_FLAG_REGISTERED,
265 	ATH11K_FLAG_QMI_FAIL,
266 	ATH11K_FLAG_HTC_SUSPEND_COMPLETE,
267 	ATH11K_FLAG_CE_IRQ_ENABLED,
268 	ATH11K_FLAG_EXT_IRQ_ENABLED,
269 	ATH11K_FLAG_FIXED_MEM_RGN,
270 	ATH11K_FLAG_DEVICE_INIT_DONE,
271 	ATH11K_FLAG_MULTI_MSI_VECTORS,
272 };
273 
274 enum ath11k_monitor_flags {
275 	ATH11K_FLAG_MONITOR_CONF_ENABLED,
276 	ATH11K_FLAG_MONITOR_STARTED,
277 	ATH11K_FLAG_MONITOR_VDEV_CREATED,
278 };
279 
280 #define ATH11K_IPV6_UC_TYPE     0
281 #define ATH11K_IPV6_AC_TYPE     1
282 
283 #define ATH11K_IPV6_MAX_COUNT   16
284 #define ATH11K_IPV4_MAX_COUNT   2
285 
286 struct ath11k_arp_ns_offload {
287 	u8  ipv4_addr[ATH11K_IPV4_MAX_COUNT][4];
288 	u32 ipv4_count;
289 	u32 ipv6_count;
290 	u8  ipv6_addr[ATH11K_IPV6_MAX_COUNT][16];
291 	u8  self_ipv6_addr[ATH11K_IPV6_MAX_COUNT][16];
292 	u8  ipv6_type[ATH11K_IPV6_MAX_COUNT];
293 	bool ipv6_valid[ATH11K_IPV6_MAX_COUNT];
294 	u8  mac_addr[ETH_ALEN];
295 };
296 
297 struct ath11k_rekey_data {
298 	u8 kck[NL80211_KCK_LEN];
299 	u8 kek[NL80211_KCK_LEN];
300 	u64 replay_ctr;
301 	bool enable_offload;
302 };
303 
304 struct ath11k_vif {
305 	u32 vdev_id;
306 	enum wmi_vdev_type vdev_type;
307 	enum wmi_vdev_subtype vdev_subtype;
308 	u32 beacon_interval;
309 	u32 dtim_period;
310 	u16 ast_hash;
311 	u16 ast_idx;
312 	u16 tcl_metadata;
313 	u8 hal_addr_search_flags;
314 	u8 search_type;
315 
316 	struct ath11k *ar;
317 	struct ieee80211_vif *vif;
318 
319 	u16 tx_seq_no;
320 	struct wmi_wmm_params_all_arg wmm_params;
321 	struct list_head list;
322 	union {
323 		struct {
324 			u32 uapsd;
325 		} sta;
326 		struct {
327 			/* 127 stations; wmi limit */
328 			u8 tim_bitmap[16];
329 			u8 tim_len;
330 			u32 ssid_len;
331 			u8 ssid[IEEE80211_MAX_SSID_LEN];
332 			bool hidden_ssid;
333 			/* P2P_IE with NoA attribute for P2P_GO case */
334 			u32 noa_len;
335 			u8 *noa_data;
336 		} ap;
337 	} u;
338 
339 	bool is_started;
340 	bool is_up;
341 	bool spectral_enabled;
342 	bool ps;
343 	u32 aid;
344 	u8 bssid[ETH_ALEN];
345 	struct cfg80211_bitrate_mask bitrate_mask;
346 	struct delayed_work connection_loss_work;
347 	int num_legacy_stations;
348 	int rtscts_prot_mode;
349 	int txpower;
350 	bool rsnie_present;
351 	bool wpaie_present;
352 	bool bcca_zero_sent;
353 	bool do_not_send_tmpl;
354 	struct ieee80211_chanctx_conf chanctx;
355 	struct ath11k_arp_ns_offload arp_ns_offload;
356 	struct ath11k_rekey_data rekey_data;
357 
358 #ifdef CONFIG_ATH11K_DEBUGFS
359 	struct dentry *debugfs_twt;
360 #endif /* CONFIG_ATH11K_DEBUGFS */
361 };
362 
363 struct ath11k_vif_iter {
364 	u32 vdev_id;
365 	struct ath11k_vif *arvif;
366 };
367 
368 struct ath11k_rx_peer_stats {
369 	u64 num_msdu;
370 	u64 num_mpdu_fcs_ok;
371 	u64 num_mpdu_fcs_err;
372 	u64 tcp_msdu_count;
373 	u64 udp_msdu_count;
374 	u64 other_msdu_count;
375 	u64 ampdu_msdu_count;
376 	u64 non_ampdu_msdu_count;
377 	u64 stbc_count;
378 	u64 beamformed_count;
379 	u64 mcs_count[HAL_RX_MAX_MCS + 1];
380 	u64 nss_count[HAL_RX_MAX_NSS];
381 	u64 bw_count[HAL_RX_BW_MAX];
382 	u64 gi_count[HAL_RX_GI_MAX];
383 	u64 coding_count[HAL_RX_SU_MU_CODING_MAX];
384 	u64 tid_count[IEEE80211_NUM_TIDS + 1];
385 	u64 pream_cnt[HAL_RX_PREAMBLE_MAX];
386 	u64 reception_type[HAL_RX_RECEPTION_TYPE_MAX];
387 	u64 rx_duration;
388 	u64 dcm_count;
389 	u64 ru_alloc_cnt[HAL_RX_RU_ALLOC_TYPE_MAX];
390 };
391 
392 #define ATH11K_HE_MCS_NUM       12
393 #define ATH11K_VHT_MCS_NUM      10
394 #define ATH11K_BW_NUM           4
395 #define ATH11K_NSS_NUM          4
396 #define ATH11K_LEGACY_NUM       12
397 #define ATH11K_GI_NUM           4
398 #define ATH11K_HT_MCS_NUM       32
399 
400 enum ath11k_pkt_rx_err {
401 	ATH11K_PKT_RX_ERR_FCS,
402 	ATH11K_PKT_RX_ERR_TKIP,
403 	ATH11K_PKT_RX_ERR_CRYPT,
404 	ATH11K_PKT_RX_ERR_PEER_IDX_INVAL,
405 	ATH11K_PKT_RX_ERR_MAX,
406 };
407 
408 enum ath11k_ampdu_subfrm_num {
409 	ATH11K_AMPDU_SUBFRM_NUM_10,
410 	ATH11K_AMPDU_SUBFRM_NUM_20,
411 	ATH11K_AMPDU_SUBFRM_NUM_30,
412 	ATH11K_AMPDU_SUBFRM_NUM_40,
413 	ATH11K_AMPDU_SUBFRM_NUM_50,
414 	ATH11K_AMPDU_SUBFRM_NUM_60,
415 	ATH11K_AMPDU_SUBFRM_NUM_MORE,
416 	ATH11K_AMPDU_SUBFRM_NUM_MAX,
417 };
418 
419 enum ath11k_amsdu_subfrm_num {
420 	ATH11K_AMSDU_SUBFRM_NUM_1,
421 	ATH11K_AMSDU_SUBFRM_NUM_2,
422 	ATH11K_AMSDU_SUBFRM_NUM_3,
423 	ATH11K_AMSDU_SUBFRM_NUM_4,
424 	ATH11K_AMSDU_SUBFRM_NUM_MORE,
425 	ATH11K_AMSDU_SUBFRM_NUM_MAX,
426 };
427 
428 enum ath11k_counter_type {
429 	ATH11K_COUNTER_TYPE_BYTES,
430 	ATH11K_COUNTER_TYPE_PKTS,
431 	ATH11K_COUNTER_TYPE_MAX,
432 };
433 
434 enum ath11k_stats_type {
435 	ATH11K_STATS_TYPE_SUCC,
436 	ATH11K_STATS_TYPE_FAIL,
437 	ATH11K_STATS_TYPE_RETRY,
438 	ATH11K_STATS_TYPE_AMPDU,
439 	ATH11K_STATS_TYPE_MAX,
440 };
441 
442 struct ath11k_htt_data_stats {
443 	u64 legacy[ATH11K_COUNTER_TYPE_MAX][ATH11K_LEGACY_NUM];
444 	u64 ht[ATH11K_COUNTER_TYPE_MAX][ATH11K_HT_MCS_NUM];
445 	u64 vht[ATH11K_COUNTER_TYPE_MAX][ATH11K_VHT_MCS_NUM];
446 	u64 he[ATH11K_COUNTER_TYPE_MAX][ATH11K_HE_MCS_NUM];
447 	u64 bw[ATH11K_COUNTER_TYPE_MAX][ATH11K_BW_NUM];
448 	u64 nss[ATH11K_COUNTER_TYPE_MAX][ATH11K_NSS_NUM];
449 	u64 gi[ATH11K_COUNTER_TYPE_MAX][ATH11K_GI_NUM];
450 };
451 
452 struct ath11k_htt_tx_stats {
453 	struct ath11k_htt_data_stats stats[ATH11K_STATS_TYPE_MAX];
454 	u64 tx_duration;
455 	u64 ba_fails;
456 	u64 ack_fails;
457 };
458 
459 struct ath11k_per_ppdu_tx_stats {
460 	u16 succ_pkts;
461 	u16 failed_pkts;
462 	u16 retry_pkts;
463 	u32 succ_bytes;
464 	u32 failed_bytes;
465 	u32 retry_bytes;
466 };
467 
468 DECLARE_EWMA(avg_rssi, 10, 8)
469 
470 struct ath11k_sta {
471 	struct ath11k_vif *arvif;
472 
473 	/* the following are protected by ar->data_lock */
474 	u32 changed; /* IEEE80211_RC_* */
475 	u32 bw;
476 	u32 nss;
477 	u32 smps;
478 	enum hal_pn_type pn_type;
479 
480 	struct work_struct update_wk;
481 	struct work_struct set_4addr_wk;
482 	struct rate_info txrate;
483 	u32 peer_nss;
484 	struct rate_info last_txrate;
485 	u64 rx_duration;
486 	u64 tx_duration;
487 	u8 rssi_comb;
488 	struct ewma_avg_rssi avg_rssi;
489 	s8 rssi_beacon;
490 	s8 chain_signal[IEEE80211_MAX_CHAINS];
491 	struct ath11k_htt_tx_stats *tx_stats;
492 	struct ath11k_rx_peer_stats *rx_stats;
493 
494 #ifdef CONFIG_MAC80211_DEBUGFS
495 	/* protected by conf_mutex */
496 	bool aggr_mode;
497 #endif
498 
499 	bool use_4addr_set;
500 	u16 tcl_metadata;
501 
502 	/* Protected with ar->data_lock */
503 	enum ath11k_wmi_peer_ps_state peer_ps_state;
504 	u64 ps_start_time;
505 	u64 ps_start_jiffies;
506 	u64 ps_total_duration;
507 	bool peer_current_ps_valid;
508 
509 	u32 bw_prev;
510 };
511 
512 #define ATH11K_MIN_5G_FREQ 4150
513 #define ATH11K_MIN_6G_FREQ 5925
514 #define ATH11K_MAX_6G_FREQ 7115
515 #define ATH11K_NUM_CHANS 101
516 #define ATH11K_MAX_5G_CHAN 173
517 
518 enum ath11k_state {
519 	ATH11K_STATE_OFF,
520 	ATH11K_STATE_ON,
521 	ATH11K_STATE_RESTARTING,
522 	ATH11K_STATE_RESTARTED,
523 	ATH11K_STATE_WEDGED,
524 	/* Add other states as required */
525 };
526 
527 /* Antenna noise floor */
528 #define ATH11K_DEFAULT_NOISE_FLOOR -95
529 
530 #define ATH11K_INVALID_RSSI_FULL -1
531 
532 #define ATH11K_INVALID_RSSI_EMPTY -128
533 
534 struct ath11k_fw_stats {
535 	struct dentry *debugfs_fwstats;
536 	u32 pdev_id;
537 	u32 stats_id;
538 	struct list_head pdevs;
539 	struct list_head vdevs;
540 	struct list_head bcn;
541 };
542 
543 struct ath11k_dbg_htt_stats {
544 	u8 type;
545 	u8 reset;
546 	struct debug_htt_stats_req *stats_req;
547 	/* protects shared stats req buffer */
548 	spinlock_t lock;
549 };
550 
551 #define MAX_MODULE_ID_BITMAP_WORDS	16
552 
553 struct ath11k_debug {
554 	struct dentry *debugfs_pdev;
555 	struct ath11k_dbg_htt_stats htt_stats;
556 	u32 extd_tx_stats;
557 	u32 extd_rx_stats;
558 	u32 pktlog_filter;
559 	u32 pktlog_mode;
560 	u32 pktlog_peer_valid;
561 	u8 pktlog_peer_addr[ETH_ALEN];
562 	u32 rx_filter;
563 	u32 mem_offset;
564 	u32 module_id_bitmap[MAX_MODULE_ID_BITMAP_WORDS];
565 	struct ath11k_debug_dbr *dbr_debug[WMI_DIRECT_BUF_MAX];
566 };
567 
568 struct ath11k_per_peer_tx_stats {
569 	u32 succ_bytes;
570 	u32 retry_bytes;
571 	u32 failed_bytes;
572 	u16 succ_pkts;
573 	u16 retry_pkts;
574 	u16 failed_pkts;
575 	u32 duration;
576 	u8 ba_fails;
577 	bool is_ampdu;
578 };
579 
580 #define ATH11K_FLUSH_TIMEOUT (5 * HZ)
581 #define ATH11K_VDEV_DELETE_TIMEOUT_HZ (5 * HZ)
582 
583 struct ath11k {
584 	struct ath11k_base *ab;
585 	struct ath11k_pdev *pdev;
586 	struct ieee80211_hw *hw;
587 	struct ieee80211_ops *ops;
588 	struct ath11k_pdev_wmi *wmi;
589 	struct ath11k_pdev_dp dp;
590 	u8 mac_addr[ETH_ALEN];
591 	struct ath11k_he ar_he;
592 	enum ath11k_state state;
593 	bool supports_6ghz;
594 	struct {
595 		struct completion started;
596 		struct completion completed;
597 		struct completion on_channel;
598 		struct delayed_work timeout;
599 		enum ath11k_scan_state state;
600 		bool is_roc;
601 		int vdev_id;
602 		int roc_freq;
603 		bool roc_notify;
604 	} scan;
605 
606 	struct {
607 		struct ieee80211_supported_band sbands[NUM_NL80211_BANDS];
608 		struct ieee80211_sband_iftype_data
609 			iftype[NUM_NL80211_BANDS][NUM_NL80211_IFTYPES];
610 	} mac;
611 
612 	unsigned long dev_flags;
613 	unsigned int filter_flags;
614 	unsigned long monitor_flags;
615 	u32 min_tx_power;
616 	u32 max_tx_power;
617 	u32 txpower_limit_2g;
618 	u32 txpower_limit_5g;
619 	u32 txpower_scale;
620 	u32 power_scale;
621 	u32 chan_tx_pwr;
622 	u32 num_stations;
623 	u32 max_num_stations;
624 	/* To synchronize concurrent synchronous mac80211 callback operations,
625 	 * concurrent debugfs configuration and concurrent FW statistics events.
626 	 */
627 	struct mutex conf_mutex;
628 	/* protects the radio specific data like debug stats, ppdu_stats_info stats,
629 	 * vdev_stop_status info, scan data, ath11k_sta info, ath11k_vif info,
630 	 * channel context data, survey info, test mode data.
631 	 */
632 	spinlock_t data_lock;
633 
634 	struct list_head arvifs;
635 	/* should never be NULL; needed for regular htt rx */
636 	struct ieee80211_channel *rx_channel;
637 
638 	/* valid during scan; needed for mgmt rx during scan */
639 	struct ieee80211_channel *scan_channel;
640 
641 	u8 cfg_tx_chainmask;
642 	u8 cfg_rx_chainmask;
643 	u8 num_rx_chains;
644 	u8 num_tx_chains;
645 	/* pdev_idx starts from 0 whereas pdev->pdev_id starts with 1 */
646 	u8 pdev_idx;
647 	u8 lmac_id;
648 
649 	struct completion peer_assoc_done;
650 	struct completion peer_delete_done;
651 
652 	int install_key_status;
653 	struct completion install_key_done;
654 
655 	int last_wmi_vdev_start_status;
656 	struct completion vdev_setup_done;
657 	struct completion vdev_delete_done;
658 
659 	int num_peers;
660 	int max_num_peers;
661 	u32 num_started_vdevs;
662 	u32 num_created_vdevs;
663 	unsigned long long allocated_vdev_map;
664 
665 	struct idr txmgmt_idr;
666 	/* protects txmgmt_idr data */
667 	spinlock_t txmgmt_idr_lock;
668 	atomic_t num_pending_mgmt_tx;
669 	wait_queue_head_t txmgmt_empty_waitq;
670 
671 	/* cycle count is reported twice for each visited channel during scan.
672 	 * access protected by data_lock
673 	 */
674 	u32 survey_last_rx_clear_count;
675 	u32 survey_last_cycle_count;
676 
677 	/* Channel info events are expected to come in pairs without and with
678 	 * COMPLETE flag set respectively for each channel visit during scan.
679 	 *
680 	 * However there are deviations from this rule. This flag is used to
681 	 * avoid reporting garbage data.
682 	 */
683 	bool ch_info_can_report_survey;
684 	struct survey_info survey[ATH11K_NUM_CHANS];
685 	struct completion bss_survey_done;
686 
687 	struct work_struct regd_update_work;
688 
689 	struct work_struct wmi_mgmt_tx_work;
690 	struct sk_buff_head wmi_mgmt_tx_queue;
691 
692 	struct ath11k_wow wow;
693 	struct completion target_suspend;
694 	bool target_suspend_ack;
695 	struct ath11k_per_peer_tx_stats peer_tx_stats;
696 	struct list_head ppdu_stats_info;
697 	u32 ppdu_stat_list_depth;
698 
699 	struct ath11k_per_peer_tx_stats cached_stats;
700 	u32 last_ppdu_id;
701 	u32 cached_ppdu_id;
702 	int monitor_vdev_id;
703 #ifdef CONFIG_ATH11K_DEBUGFS
704 	struct ath11k_debug debug;
705 #endif
706 #ifdef CONFIG_ATH11K_SPECTRAL
707 	struct ath11k_spectral spectral;
708 #endif
709 	bool dfs_block_radar_events;
710 	struct ath11k_thermal thermal;
711 	u32 vdev_id_11d_scan;
712 	struct completion completed_11d_scan;
713 	enum ath11k_11d_state state_11d;
714 	bool regdom_set_by_user;
715 	int hw_rate_code;
716 	u8 twt_enabled;
717 	bool nlo_enabled;
718 	u8 alpha2[REG_ALPHA2_LEN + 1];
719 	struct ath11k_fw_stats fw_stats;
720 	struct completion fw_stats_complete;
721 	bool fw_stats_done;
722 
723 	/* protected by conf_mutex */
724 	bool ps_state_enable;
725 	bool ps_timekeeper_enable;
726 };
727 
728 struct ath11k_band_cap {
729 	u32 phy_id;
730 	u32 max_bw_supported;
731 	u32 ht_cap_info;
732 	u32 he_cap_info[2];
733 	u32 he_mcs;
734 	u32 he_cap_phy_info[PSOC_HOST_MAX_PHY_SIZE];
735 	struct ath11k_ppe_threshold he_ppet;
736 	u16 he_6ghz_capa;
737 };
738 
739 struct ath11k_pdev_cap {
740 	u32 supported_bands;
741 	u32 ampdu_density;
742 	u32 vht_cap;
743 	u32 vht_mcs;
744 	u32 he_mcs;
745 	u32 tx_chain_mask;
746 	u32 rx_chain_mask;
747 	u32 tx_chain_mask_shift;
748 	u32 rx_chain_mask_shift;
749 	struct ath11k_band_cap band[NUM_NL80211_BANDS];
750 	bool nss_ratio_enabled;
751 	u8 nss_ratio_info;
752 };
753 
754 struct ath11k_pdev {
755 	struct ath11k *ar;
756 	u32 pdev_id;
757 	struct ath11k_pdev_cap cap;
758 	u8 mac_addr[ETH_ALEN];
759 };
760 
761 struct ath11k_board_data {
762 	const struct firmware *fw;
763 	const void *data;
764 	size_t len;
765 };
766 
767 struct ath11k_pci_ops {
768 	int (*wakeup)(struct ath11k_base *ab);
769 	void (*release)(struct ath11k_base *ab);
770 	int (*get_msi_irq)(struct ath11k_base *ab, unsigned int vector);
771 	void (*window_write32)(struct ath11k_base *ab, u32 offset, u32 value);
772 	u32 (*window_read32)(struct ath11k_base *ab, u32 offset);
773 };
774 
775 /* IPQ8074 HW channel counters frequency value in hertz */
776 #define IPQ8074_CC_FREQ_HERTZ 320000
777 
778 struct ath11k_bp_stats {
779 	/* Head Pointer reported by the last HTT Backpressure event for the ring */
780 	u16 hp;
781 
782 	/* Tail Pointer reported by the last HTT Backpressure event for the ring */
783 	u16 tp;
784 
785 	/* Number of Backpressure events received for the ring */
786 	u32 count;
787 
788 	/* Last recorded event timestamp */
789 	unsigned long jiffies;
790 };
791 
792 struct ath11k_dp_ring_bp_stats {
793 	struct ath11k_bp_stats umac_ring_bp_stats[HTT_SW_UMAC_RING_IDX_MAX];
794 	struct ath11k_bp_stats lmac_ring_bp_stats[HTT_SW_LMAC_RING_IDX_MAX][MAX_RADIOS];
795 };
796 
797 struct ath11k_soc_dp_tx_err_stats {
798 	/* TCL Ring Descriptor unavailable */
799 	u32 desc_na[DP_TCL_NUM_RING_MAX];
800 	/* Other failures during dp_tx due to mem allocation failure
801 	 * idr unavailable etc.
802 	 */
803 	atomic_t misc_fail;
804 };
805 
806 struct ath11k_soc_dp_stats {
807 	u32 err_ring_pkts;
808 	u32 invalid_rbm;
809 	u32 rxdma_error[HAL_REO_ENTR_RING_RXDMA_ECODE_MAX];
810 	u32 reo_error[HAL_REO_DEST_RING_ERROR_CODE_MAX];
811 	u32 hal_reo_error[DP_REO_DST_RING_MAX];
812 	struct ath11k_soc_dp_tx_err_stats tx_err;
813 	struct ath11k_dp_ring_bp_stats bp_stats;
814 };
815 
816 struct ath11k_msi_user {
817 	char *name;
818 	int num_vectors;
819 	u32 base_vector;
820 };
821 
822 struct ath11k_msi_config {
823 	int total_vectors;
824 	int total_users;
825 	struct ath11k_msi_user *users;
826 	u16 hw_rev;
827 };
828 
829 /* Master structure to hold the hw data which may be used in core module */
830 struct ath11k_base {
831 	enum ath11k_hw_rev hw_rev;
832 	struct platform_device *pdev;
833 	struct device *dev;
834 	struct ath11k_qmi qmi;
835 	struct ath11k_wmi_base wmi_ab;
836 	struct completion fw_ready;
837 	int num_radios;
838 	/* HW channel counters frequency value in hertz common to all MACs */
839 	u32 cc_freq_hz;
840 
841 	struct ath11k_htc htc;
842 
843 	struct ath11k_dp dp;
844 
845 	void __iomem *mem;
846 	unsigned long mem_len;
847 
848 	struct {
849 		enum ath11k_bus bus;
850 		const struct ath11k_hif_ops *ops;
851 	} hif;
852 
853 	struct {
854 		struct completion wakeup_completed;
855 	} wow;
856 
857 	struct ath11k_ce ce;
858 	struct timer_list rx_replenish_retry;
859 	struct ath11k_hal hal;
860 	/* To synchronize core_start/core_stop */
861 	struct mutex core_lock;
862 	/* Protects data like peers */
863 	spinlock_t base_lock;
864 	struct ath11k_pdev pdevs[MAX_RADIOS];
865 	struct {
866 		enum WMI_HOST_WLAN_BAND supported_bands;
867 		u32 pdev_id;
868 	} target_pdev_ids[MAX_RADIOS];
869 	u8 target_pdev_count;
870 	struct ath11k_pdev __rcu *pdevs_active[MAX_RADIOS];
871 	struct ath11k_hal_reg_capabilities_ext hal_reg_cap[MAX_RADIOS];
872 	unsigned long long free_vdev_map;
873 
874 	/* To synchronize rhash tbl write operation */
875 	struct mutex tbl_mtx_lock;
876 
877 	/* The rhashtable containing struct ath11k_peer keyed by mac addr */
878 	struct rhashtable *rhead_peer_addr;
879 	struct rhashtable_params rhash_peer_addr_param;
880 
881 	/* The rhashtable containing struct ath11k_peer keyed by id  */
882 	struct rhashtable *rhead_peer_id;
883 	struct rhashtable_params rhash_peer_id_param;
884 
885 	struct list_head peers;
886 	wait_queue_head_t peer_mapping_wq;
887 	u8 mac_addr[ETH_ALEN];
888 	bool wmi_ready;
889 	u32 wlan_init_status;
890 	int irq_num[ATH11K_IRQ_NUM_MAX];
891 	struct ath11k_ext_irq_grp ext_irq_grp[ATH11K_EXT_IRQ_GRP_NUM_MAX];
892 	struct ath11k_targ_cap target_caps;
893 	u32 ext_service_bitmap[WMI_SERVICE_EXT_BM_SIZE];
894 	bool pdevs_macaddr_valid;
895 	int bd_api;
896 
897 	struct ath11k_hw_params hw_params;
898 
899 	const struct firmware *cal_file;
900 
901 	/* Below regd's are protected by ab->data_lock */
902 	/* This is the regd set for every radio
903 	 * by the firmware during initialization
904 	 */
905 	struct ieee80211_regdomain *default_regd[MAX_RADIOS];
906 	/* This regd is set during dynamic country setting
907 	 * This may or may not be used during the runtime
908 	 */
909 	struct ieee80211_regdomain *new_regd[MAX_RADIOS];
910 
911 	/* Current DFS Regulatory */
912 	enum ath11k_dfs_region dfs_region;
913 #ifdef CONFIG_ATH11K_DEBUGFS
914 	struct dentry *debugfs_soc;
915 	struct dentry *debugfs_ath11k;
916 #endif
917 	struct ath11k_soc_dp_stats soc_stats;
918 
919 	unsigned long dev_flags;
920 	struct completion driver_recovery;
921 	struct workqueue_struct *workqueue;
922 	struct work_struct restart_work;
923 	struct work_struct update_11d_work;
924 	u8 new_alpha2[3];
925 	struct workqueue_struct *workqueue_aux;
926 	struct work_struct reset_work;
927 	atomic_t reset_count;
928 	atomic_t recovery_count;
929 	atomic_t recovery_start_count;
930 	bool is_reset;
931 	struct completion reset_complete;
932 	struct completion reconfigure_complete;
933 	struct completion recovery_start;
934 	/* continuous recovery fail count */
935 	atomic_t fail_cont_count;
936 	unsigned long reset_fail_timeout;
937 	struct {
938 		/* protected by data_lock */
939 		u32 fw_crash_counter;
940 	} stats;
941 	u32 pktlog_defs_checksum;
942 
943 	struct ath11k_dbring_cap *db_caps;
944 	u32 num_db_cap;
945 
946 	/* To synchronize 11d scan vdev id */
947 	struct mutex vdev_id_11d_lock;
948 	struct timer_list mon_reap_timer;
949 
950 	struct completion htc_suspend;
951 
952 	struct {
953 		enum ath11k_bdf_search bdf_search;
954 		u32 vendor;
955 		u32 device;
956 		u32 subsystem_vendor;
957 		u32 subsystem_device;
958 	} id;
959 
960 	struct {
961 		struct {
962 			const struct ath11k_msi_config *config;
963 			u32 ep_base_data;
964 			u32 irqs[32];
965 			u32 addr_lo;
966 			u32 addr_hi;
967 		} msi;
968 
969 		const struct ath11k_pci_ops *ops;
970 	} pci;
971 
972 	/* must be last */
973 	u8 drv_priv[] __aligned(sizeof(void *));
974 };
975 
976 struct ath11k_fw_stats_pdev {
977 	struct list_head list;
978 
979 	/* PDEV stats */
980 	s32 ch_noise_floor;
981 	/* Cycles spent transmitting frames */
982 	u32 tx_frame_count;
983 	/* Cycles spent receiving frames */
984 	u32 rx_frame_count;
985 	/* Total channel busy time, evidently */
986 	u32 rx_clear_count;
987 	/* Total on-channel time */
988 	u32 cycle_count;
989 	u32 phy_err_count;
990 	u32 chan_tx_power;
991 	u32 ack_rx_bad;
992 	u32 rts_bad;
993 	u32 rts_good;
994 	u32 fcs_bad;
995 	u32 no_beacons;
996 	u32 mib_int_count;
997 
998 	/* PDEV TX stats */
999 	/* Num HTT cookies queued to dispatch list */
1000 	s32 comp_queued;
1001 	/* Num HTT cookies dispatched */
1002 	s32 comp_delivered;
1003 	/* Num MSDU queued to WAL */
1004 	s32 msdu_enqued;
1005 	/* Num MPDU queue to WAL */
1006 	s32 mpdu_enqued;
1007 	/* Num MSDUs dropped by WMM limit */
1008 	s32 wmm_drop;
1009 	/* Num Local frames queued */
1010 	s32 local_enqued;
1011 	/* Num Local frames done */
1012 	s32 local_freed;
1013 	/* Num queued to HW */
1014 	s32 hw_queued;
1015 	/* Num PPDU reaped from HW */
1016 	s32 hw_reaped;
1017 	/* Num underruns */
1018 	s32 underrun;
1019 	/* Num hw paused */
1020 	u32 hw_paused;
1021 	/* Num PPDUs cleaned up in TX abort */
1022 	s32 tx_abort;
1023 	/* Num MPDUs requeued by SW */
1024 	s32 mpdus_requeued;
1025 	/* excessive retries */
1026 	u32 tx_ko;
1027 	u32 tx_xretry;
1028 	/* data hw rate code */
1029 	u32 data_rc;
1030 	/* Scheduler self triggers */
1031 	u32 self_triggers;
1032 	/* frames dropped due to excessive sw retries */
1033 	u32 sw_retry_failure;
1034 	/* illegal rate phy errors	*/
1035 	u32 illgl_rate_phy_err;
1036 	/* wal pdev continuous xretry */
1037 	u32 pdev_cont_xretry;
1038 	/* wal pdev tx timeouts */
1039 	u32 pdev_tx_timeout;
1040 	/* wal pdev resets */
1041 	u32 pdev_resets;
1042 	/* frames dropped due to non-availability of stateless TIDs */
1043 	u32 stateless_tid_alloc_failure;
1044 	/* PhY/BB underrun */
1045 	u32 phy_underrun;
1046 	/* MPDU is more than txop limit */
1047 	u32 txop_ovf;
1048 	/* Num sequences posted */
1049 	u32 seq_posted;
1050 	/* Num sequences failed in queueing */
1051 	u32 seq_failed_queueing;
1052 	/* Num sequences completed */
1053 	u32 seq_completed;
1054 	/* Num sequences restarted */
1055 	u32 seq_restarted;
1056 	/* Num of MU sequences posted */
1057 	u32 mu_seq_posted;
1058 	/* Num MPDUs flushed by SW, HWPAUSED, SW TXABORT
1059 	 * (Reset,channel change)
1060 	 */
1061 	s32 mpdus_sw_flush;
1062 	/* Num MPDUs filtered by HW, all filter condition (TTL expired) */
1063 	s32 mpdus_hw_filter;
1064 	/* Num MPDUs truncated by PDG (TXOP, TBTT,
1065 	 * PPDU_duration based on rate, dyn_bw)
1066 	 */
1067 	s32 mpdus_truncated;
1068 	/* Num MPDUs that was tried but didn't receive ACK or BA */
1069 	s32 mpdus_ack_failed;
1070 	/* Num MPDUs that was dropped du to expiry. */
1071 	s32 mpdus_expired;
1072 
1073 	/* PDEV RX stats */
1074 	/* Cnts any change in ring routing mid-ppdu */
1075 	s32 mid_ppdu_route_change;
1076 	/* Total number of statuses processed */
1077 	s32 status_rcvd;
1078 	/* Extra frags on rings 0-3 */
1079 	s32 r0_frags;
1080 	s32 r1_frags;
1081 	s32 r2_frags;
1082 	s32 r3_frags;
1083 	/* MSDUs / MPDUs delivered to HTT */
1084 	s32 htt_msdus;
1085 	s32 htt_mpdus;
1086 	/* MSDUs / MPDUs delivered to local stack */
1087 	s32 loc_msdus;
1088 	s32 loc_mpdus;
1089 	/* AMSDUs that have more MSDUs than the status ring size */
1090 	s32 oversize_amsdu;
1091 	/* Number of PHY errors */
1092 	s32 phy_errs;
1093 	/* Number of PHY errors drops */
1094 	s32 phy_err_drop;
1095 	/* Number of mpdu errors - FCS, MIC, ENC etc. */
1096 	s32 mpdu_errs;
1097 	/* Num overflow errors */
1098 	s32 rx_ovfl_errs;
1099 };
1100 
1101 struct ath11k_fw_stats_vdev {
1102 	struct list_head list;
1103 
1104 	u32 vdev_id;
1105 	u32 beacon_snr;
1106 	u32 data_snr;
1107 	u32 num_tx_frames[WLAN_MAX_AC];
1108 	u32 num_rx_frames;
1109 	u32 num_tx_frames_retries[WLAN_MAX_AC];
1110 	u32 num_tx_frames_failures[WLAN_MAX_AC];
1111 	u32 num_rts_fail;
1112 	u32 num_rts_success;
1113 	u32 num_rx_err;
1114 	u32 num_rx_discard;
1115 	u32 num_tx_not_acked;
1116 	u32 tx_rate_history[MAX_TX_RATE_VALUES];
1117 	u32 beacon_rssi_history[MAX_TX_RATE_VALUES];
1118 };
1119 
1120 struct ath11k_fw_stats_bcn {
1121 	struct list_head list;
1122 
1123 	u32 vdev_id;
1124 	u32 tx_bcn_succ_cnt;
1125 	u32 tx_bcn_outage_cnt;
1126 };
1127 
1128 void ath11k_fw_stats_init(struct ath11k *ar);
1129 void ath11k_fw_stats_pdevs_free(struct list_head *head);
1130 void ath11k_fw_stats_vdevs_free(struct list_head *head);
1131 void ath11k_fw_stats_bcn_free(struct list_head *head);
1132 void ath11k_fw_stats_free(struct ath11k_fw_stats *stats);
1133 
1134 extern const struct ce_pipe_config ath11k_target_ce_config_wlan_ipq8074[];
1135 extern const struct service_to_pipe ath11k_target_service_to_ce_map_wlan_ipq8074[];
1136 extern const struct service_to_pipe ath11k_target_service_to_ce_map_wlan_ipq6018[];
1137 
1138 extern const struct ce_pipe_config ath11k_target_ce_config_wlan_qca6390[];
1139 extern const struct service_to_pipe ath11k_target_service_to_ce_map_wlan_qca6390[];
1140 
1141 extern const struct ce_pipe_config ath11k_target_ce_config_wlan_qcn9074[];
1142 extern const struct service_to_pipe ath11k_target_service_to_ce_map_wlan_qcn9074[];
1143 int ath11k_core_qmi_firmware_ready(struct ath11k_base *ab);
1144 int ath11k_core_pre_init(struct ath11k_base *ab);
1145 int ath11k_core_init(struct ath11k_base *ath11k);
1146 void ath11k_core_deinit(struct ath11k_base *ath11k);
1147 struct ath11k_base *ath11k_core_alloc(struct device *dev, size_t priv_size,
1148 				      enum ath11k_bus bus);
1149 void ath11k_core_free(struct ath11k_base *ath11k);
1150 int ath11k_core_fetch_bdf(struct ath11k_base *ath11k,
1151 			  struct ath11k_board_data *bd);
1152 int ath11k_core_fetch_regdb(struct ath11k_base *ab, struct ath11k_board_data *bd);
1153 int ath11k_core_fetch_board_data_api_1(struct ath11k_base *ab,
1154 				       struct ath11k_board_data *bd,
1155 				       const char *name);
1156 void ath11k_core_free_bdf(struct ath11k_base *ab, struct ath11k_board_data *bd);
1157 int ath11k_core_check_dt(struct ath11k_base *ath11k);
1158 int ath11k_core_check_smbios(struct ath11k_base *ab);
1159 void ath11k_core_halt(struct ath11k *ar);
1160 int ath11k_core_resume(struct ath11k_base *ab);
1161 int ath11k_core_suspend(struct ath11k_base *ab);
1162 void ath11k_core_pre_reconfigure_recovery(struct ath11k_base *ab);
1163 
1164 const struct firmware *ath11k_core_firmware_request(struct ath11k_base *ab,
1165 						    const char *filename);
1166 
1167 static inline const char *ath11k_scan_state_str(enum ath11k_scan_state state)
1168 {
1169 	switch (state) {
1170 	case ATH11K_SCAN_IDLE:
1171 		return "idle";
1172 	case ATH11K_SCAN_STARTING:
1173 		return "starting";
1174 	case ATH11K_SCAN_RUNNING:
1175 		return "running";
1176 	case ATH11K_SCAN_ABORTING:
1177 		return "aborting";
1178 	}
1179 
1180 	return "unknown";
1181 }
1182 
1183 static inline struct ath11k_skb_cb *ATH11K_SKB_CB(struct sk_buff *skb)
1184 {
1185 	BUILD_BUG_ON(sizeof(struct ath11k_skb_cb) >
1186 		     IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
1187 	return (struct ath11k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
1188 }
1189 
1190 static inline struct ath11k_skb_rxcb *ATH11K_SKB_RXCB(struct sk_buff *skb)
1191 {
1192 	BUILD_BUG_ON(sizeof(struct ath11k_skb_rxcb) > sizeof(skb->cb));
1193 	return (struct ath11k_skb_rxcb *)skb->cb;
1194 }
1195 
1196 static inline struct ath11k_vif *ath11k_vif_to_arvif(struct ieee80211_vif *vif)
1197 {
1198 	return (struct ath11k_vif *)vif->drv_priv;
1199 }
1200 
1201 static inline struct ath11k *ath11k_ab_to_ar(struct ath11k_base *ab,
1202 					     int mac_id)
1203 {
1204 	return ab->pdevs[ath11k_hw_mac_id_to_pdev_id(&ab->hw_params, mac_id)].ar;
1205 }
1206 
1207 static inline void ath11k_core_create_firmware_path(struct ath11k_base *ab,
1208 						    const char *filename,
1209 						    void *buf, size_t buf_len)
1210 {
1211 	snprintf(buf, buf_len, "%s/%s/%s", ATH11K_FW_DIR,
1212 		 ab->hw_params.fw.dir, filename);
1213 }
1214 
1215 static inline const char *ath11k_bus_str(enum ath11k_bus bus)
1216 {
1217 	switch (bus) {
1218 	case ATH11K_BUS_PCI:
1219 		return "pci";
1220 	case ATH11K_BUS_AHB:
1221 		return "ahb";
1222 	}
1223 
1224 	return "unknown";
1225 }
1226 
1227 #endif /* _CORE_H_ */
1228