1 /*
2 * Copyright (c) 2008-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #ifndef ATH9K_H
18 #define ATH9K_H
19
20 #include <linux/etherdevice.h>
21 #include <linux/device.h>
22 #include <linux/interrupt.h>
23 #include <linux/leds.h>
24 #include <linux/completion.h>
25 #include <linux/time.h>
26 #include <linux/hw_random.h>
27
28 #include "common.h"
29 #include "debug.h"
30 #include "mci.h"
31 #include "dfs.h"
32
33 struct ath_node;
34 struct ath_vif;
35
36 extern struct ieee80211_ops ath9k_ops;
37 extern int ath9k_modparam_nohwcrypt;
38 extern int ath9k_led_blink;
39 extern bool is_ath9k_unloaded;
40 extern int ath9k_use_chanctx;
41
42 /*************************/
43 /* Descriptor Management */
44 /*************************/
45
46 #define ATH_TXSTATUS_RING_SIZE 512
47
48 /* Macro to expand scalars to 64-bit objects */
49 #define ito64(x) (sizeof(x) == 1) ? \
50 (((unsigned long long int)(x)) & (0xff)) : \
51 (sizeof(x) == 2) ? \
52 (((unsigned long long int)(x)) & 0xffff) : \
53 ((sizeof(x) == 4) ? \
54 (((unsigned long long int)(x)) & 0xffffffff) : \
55 (unsigned long long int)(x))
56
57 #define ATH_TXBUF_RESET(_bf) do { \
58 (_bf)->bf_lastbf = NULL; \
59 (_bf)->bf_next = NULL; \
60 memset(&((_bf)->bf_state), 0, \
61 sizeof(struct ath_buf_state)); \
62 } while (0)
63
64 #define DS2PHYS(_dd, _ds) \
65 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
66 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
67 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
68
69 struct ath_descdma {
70 void *dd_desc;
71 dma_addr_t dd_desc_paddr;
72 u32 dd_desc_len;
73 };
74
75 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
76 struct list_head *head, const char *name,
77 int nbuf, int ndesc, bool is_tx);
78
79 /***********/
80 /* RX / TX */
81 /***********/
82
83 #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
84
85 /* increment with wrap-around */
86 #define INCR(_l, _sz) do { \
87 (_l)++; \
88 (_l) &= ((_sz) - 1); \
89 } while (0)
90
91 #define ATH_RXBUF 512
92 #define ATH_TXBUF 512
93 #define ATH_TXBUF_RESERVE 5
94 #define ATH_TXMAXTRY 13
95 #define ATH_MAX_SW_RETRIES 30
96
97 #define TID_TO_WME_AC(_tid) \
98 ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
99 (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
100 (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
101 IEEE80211_AC_VO)
102
103 #define ATH_AGGR_DELIM_SZ 4
104 #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
105 /* number of delimiters for encryption padding */
106 #define ATH_AGGR_ENCRYPTDELIM 10
107 /* minimum h/w qdepth to be sustained to maximize aggregation */
108 #define ATH_AGGR_MIN_QDEPTH 2
109 /* minimum h/w qdepth for non-aggregated traffic */
110 #define ATH_NON_AGGR_MIN_QDEPTH 8
111 #define ATH_HW_CHECK_POLL_INT 1000
112 #define ATH_TXFIFO_DEPTH 8
113 #define ATH_TX_ERROR 0x01
114
115 /* Stop tx traffic 1ms before the GO goes away */
116 #define ATH_P2P_PS_STOP_TIME 1000
117
118 #define IEEE80211_SEQ_SEQ_SHIFT 4
119 #define IEEE80211_SEQ_MAX 4096
120 #define IEEE80211_WEP_IVLEN 3
121 #define IEEE80211_WEP_KIDLEN 1
122 #define IEEE80211_WEP_CRCLEN 4
123 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
124 (IEEE80211_WEP_IVLEN + \
125 IEEE80211_WEP_KIDLEN + \
126 IEEE80211_WEP_CRCLEN))
127
128 /* return whether a bit at index _n in bitmap _bm is set
129 * _sz is the size of the bitmap */
130 #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
131 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
132
133 /* return block-ack bitmap index given sequence and starting sequence */
134 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
135
136 /* return the seqno for _start + _offset */
137 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
138
139 /* returns delimiter padding required given the packet length */
140 #define ATH_AGGR_GET_NDELIM(_len) \
141 (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \
142 DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
143
144 #define BAW_WITHIN(_start, _bawsz, _seqno) \
145 ((((_seqno) - (_start)) & 4095) < (_bawsz))
146
147 #define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
148
149 #define IS_HT_RATE(rate) (rate & 0x80)
150 #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
151 #define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf))
152
153 enum {
154 WLAN_RC_PHY_OFDM,
155 WLAN_RC_PHY_CCK,
156 };
157
158 struct ath_txq {
159 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
160 u32 axq_qnum; /* ath9k hardware queue number */
161 void *axq_link;
162 struct list_head axq_q;
163 spinlock_t axq_lock;
164 u32 axq_depth;
165 u32 axq_ampdu_depth;
166 bool axq_tx_inprogress;
167 struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
168 u8 txq_headidx;
169 u8 txq_tailidx;
170 int pending_frames;
171 struct sk_buff_head complete_q;
172 };
173
174 struct ath_frame_info {
175 struct ath_buf *bf;
176 u16 framelen;
177 s8 txq;
178 u8 keyix;
179 u8 rtscts_rate;
180 u8 retries : 6;
181 u8 dyn_smps : 1;
182 u8 baw_tracked : 1;
183 u8 tx_power;
184 enum ath9k_key_type keytype:2;
185 };
186
187 struct ath_rxbuf {
188 struct list_head list;
189 struct sk_buff *bf_mpdu;
190 void *bf_desc;
191 dma_addr_t bf_daddr;
192 dma_addr_t bf_buf_addr;
193 };
194
195 /**
196 * enum buffer_type - Buffer type flags
197 *
198 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
199 * @BUF_AGGR: Indicates whether the buffer can be aggregated
200 * (used in aggregation scheduling)
201 */
202 enum buffer_type {
203 BUF_AMPDU = BIT(0),
204 BUF_AGGR = BIT(1),
205 };
206
207 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
208 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
209
210 struct ath_buf_state {
211 u8 bf_type;
212 u8 bfs_paprd;
213 u8 ndelim;
214 bool stale;
215 u16 seqno;
216 unsigned long bfs_paprd_timestamp;
217 };
218
219 struct ath_buf {
220 struct list_head list;
221 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
222 an aggregate) */
223 struct ath_buf *bf_next; /* next subframe in the aggregate */
224 struct sk_buff *bf_mpdu; /* enclosing frame structure */
225 void *bf_desc; /* virtual addr of desc */
226 dma_addr_t bf_daddr; /* physical addr of desc */
227 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
228 struct ieee80211_tx_rate rates[4];
229 struct ath_buf_state bf_state;
230 };
231
232 struct ath_atx_tid {
233 struct list_head list;
234 struct sk_buff_head retry_q;
235 struct ath_node *an;
236 struct ath_txq *txq;
237 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
238 u16 seq_start;
239 u16 seq_next;
240 u16 baw_size;
241 u8 tidno;
242 int baw_head; /* first un-acked tx buffer */
243 int baw_tail; /* next unused tx buffer slot */
244
245 s8 bar_index;
246 bool active;
247 bool clear_ps_filter;
248 };
249
250 void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
251
252 struct ath_node {
253 struct ath_softc *sc;
254 struct ieee80211_sta *sta; /* station struct we're part of */
255 struct ieee80211_vif *vif; /* interface with which we're associated */
256
257 u16 maxampdu;
258 u8 mpdudensity;
259 s8 ps_key;
260
261 bool sleeping;
262 bool no_ps_filter;
263
264 #ifdef CONFIG_ATH9K_STATION_STATISTICS
265 struct ath_rx_rate_stats rx_rate_stats;
266 #endif
267 u8 key_idx[4];
268
269 int ackto;
270 struct list_head list;
271 };
272
273 struct ath_tx_control {
274 struct ath_txq *txq;
275 struct ath_node *an;
276 struct ieee80211_sta *sta;
277 u8 paprd;
278 };
279
280
281 /**
282 * @txq_map: Index is mac80211 queue number. This is
283 * not necessarily the same as the hardware queue number
284 * (axq_qnum).
285 */
286 struct ath_tx {
287 u32 txqsetup;
288 spinlock_t txbuflock;
289 struct list_head txbuf;
290 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
291 struct ath_descdma txdma;
292 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
293 struct ath_txq *uapsdq;
294 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
295 };
296
297 struct ath_rx_edma {
298 struct sk_buff_head rx_fifo;
299 u32 rx_fifo_hwsize;
300 };
301
302 struct ath_rx {
303 u8 defant;
304 u8 rxotherant;
305 bool discard_next;
306 u32 *rxlink;
307 u32 num_pkts;
308 struct list_head rxbuf;
309 struct ath_descdma rxdma;
310 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
311
312 struct ath_rxbuf *buf_hold;
313 struct sk_buff *frag;
314
315 u32 ampdu_ref;
316 };
317
318 /*******************/
319 /* Channel Context */
320 /*******************/
321
322 struct ath_acq {
323 struct list_head acq_new;
324 struct list_head acq_old;
325 spinlock_t lock;
326 };
327
328 struct ath_chanctx {
329 struct cfg80211_chan_def chandef;
330 struct list_head vifs;
331 struct ath_acq acq[IEEE80211_NUM_ACS];
332 int hw_queue_base;
333
334 /* do not dereference, use for comparison only */
335 struct ieee80211_vif *primary_sta;
336
337 struct ath_beacon_config beacon;
338 struct ath9k_hw_cal_data caldata;
339 struct timespec64 tsf_ts;
340 u64 tsf_val;
341 u32 last_beacon;
342
343 int flush_timeout;
344 u16 txpower;
345 u16 cur_txpower;
346 bool offchannel;
347 bool stopped;
348 bool active;
349 bool assigned;
350 bool switch_after_beacon;
351
352 short nvifs;
353 short nvifs_assigned;
354 unsigned int rxfilter;
355 };
356
357 enum ath_chanctx_event {
358 ATH_CHANCTX_EVENT_BEACON_PREPARE,
359 ATH_CHANCTX_EVENT_BEACON_SENT,
360 ATH_CHANCTX_EVENT_TSF_TIMER,
361 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
362 ATH_CHANCTX_EVENT_AUTHORIZED,
363 ATH_CHANCTX_EVENT_SWITCH,
364 ATH_CHANCTX_EVENT_ASSIGN,
365 ATH_CHANCTX_EVENT_UNASSIGN,
366 ATH_CHANCTX_EVENT_CHANGE,
367 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
368 };
369
370 enum ath_chanctx_state {
371 ATH_CHANCTX_STATE_IDLE,
372 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
373 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
374 ATH_CHANCTX_STATE_SWITCH,
375 ATH_CHANCTX_STATE_FORCE_ACTIVE,
376 };
377
378 struct ath_chanctx_sched {
379 bool beacon_pending;
380 bool beacon_adjust;
381 bool offchannel_pending;
382 bool wait_switch;
383 bool force_noa_update;
384 bool extend_absence;
385 bool mgd_prepare_tx;
386 enum ath_chanctx_state state;
387 u8 beacon_miss;
388
389 u32 next_tbtt;
390 u32 switch_start_time;
391 unsigned int offchannel_duration;
392 unsigned int channel_switch_time;
393
394 /* backup, in case the hardware timer fails */
395 struct timer_list timer;
396 };
397
398 enum ath_offchannel_state {
399 ATH_OFFCHANNEL_IDLE,
400 ATH_OFFCHANNEL_PROBE_SEND,
401 ATH_OFFCHANNEL_PROBE_WAIT,
402 ATH_OFFCHANNEL_SUSPEND,
403 ATH_OFFCHANNEL_ROC_START,
404 ATH_OFFCHANNEL_ROC_WAIT,
405 ATH_OFFCHANNEL_ROC_DONE,
406 };
407
408 enum ath_roc_complete_reason {
409 ATH_ROC_COMPLETE_EXPIRE,
410 ATH_ROC_COMPLETE_ABORT,
411 ATH_ROC_COMPLETE_CANCEL,
412 };
413
414 struct ath_offchannel {
415 struct ath_chanctx chan;
416 struct timer_list timer;
417 struct cfg80211_scan_request *scan_req;
418 struct ieee80211_vif *scan_vif;
419 int scan_idx;
420 enum ath_offchannel_state state;
421 struct ieee80211_channel *roc_chan;
422 struct ieee80211_vif *roc_vif;
423 int roc_duration;
424 int duration;
425 };
426
427 static inline struct ath_atx_tid *
ath_node_to_tid(struct ath_node * an,u8 tidno)428 ath_node_to_tid(struct ath_node *an, u8 tidno)
429 {
430 struct ieee80211_sta *sta = an->sta;
431 struct ieee80211_vif *vif = an->vif;
432 struct ieee80211_txq *txq;
433
434 BUG_ON(!vif);
435 if (sta)
436 txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
437 else
438 txq = vif->txq;
439
440 return (struct ath_atx_tid *) txq->drv_priv;
441 }
442
443 #define case_rtn_string(val) case val: return #val
444
445 #define ath_for_each_chanctx(_sc, _ctx) \
446 for (ctx = &sc->chanctx[0]; \
447 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
448 ctx++)
449
450 void ath_chanctx_init(struct ath_softc *sc);
451 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
452 struct cfg80211_chan_def *chandef);
453
454 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
455
456 static inline struct ath_chanctx *
ath_chanctx_get(struct ieee80211_chanctx_conf * ctx)457 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
458 {
459 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
460 return *ptr;
461 }
462
463 bool ath9k_is_chanctx_enabled(void);
464 void ath9k_fill_chanctx_ops(void);
465 void ath9k_init_channel_context(struct ath_softc *sc);
466 void ath9k_offchannel_init(struct ath_softc *sc);
467 void ath9k_deinit_channel_context(struct ath_softc *sc);
468 int ath9k_init_p2p(struct ath_softc *sc);
469 void ath9k_deinit_p2p(struct ath_softc *sc);
470 void ath9k_p2p_remove_vif(struct ath_softc *sc,
471 struct ieee80211_vif *vif);
472 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
473 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
474 struct ieee80211_vif *vif);
475 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
476 struct sk_buff *skb);
477 void ath9k_p2p_ps_timer(void *priv);
478 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
479 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
480 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
481
482 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
483 enum ath_chanctx_event ev);
484 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
485 enum ath_chanctx_event ev);
486 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
487 enum ath_chanctx_event ev);
488 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
489 void ath_offchannel_next(struct ath_softc *sc);
490 void ath_scan_complete(struct ath_softc *sc, bool abort);
491 void ath_roc_complete(struct ath_softc *sc,
492 enum ath_roc_complete_reason reason);
493 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
494
495 #else
496
ath9k_is_chanctx_enabled(void)497 static inline bool ath9k_is_chanctx_enabled(void)
498 {
499 return false;
500 }
ath9k_fill_chanctx_ops(void)501 static inline void ath9k_fill_chanctx_ops(void)
502 {
503 }
ath9k_init_channel_context(struct ath_softc * sc)504 static inline void ath9k_init_channel_context(struct ath_softc *sc)
505 {
506 }
ath9k_offchannel_init(struct ath_softc * sc)507 static inline void ath9k_offchannel_init(struct ath_softc *sc)
508 {
509 }
ath9k_deinit_channel_context(struct ath_softc * sc)510 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
511 {
512 }
ath_chanctx_beacon_recv_ev(struct ath_softc * sc,enum ath_chanctx_event ev)513 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
514 enum ath_chanctx_event ev)
515 {
516 }
ath_chanctx_beacon_sent_ev(struct ath_softc * sc,enum ath_chanctx_event ev)517 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
518 enum ath_chanctx_event ev)
519 {
520 }
ath_chanctx_event(struct ath_softc * sc,struct ieee80211_vif * vif,enum ath_chanctx_event ev)521 static inline void ath_chanctx_event(struct ath_softc *sc,
522 struct ieee80211_vif *vif,
523 enum ath_chanctx_event ev)
524 {
525 }
ath9k_init_p2p(struct ath_softc * sc)526 static inline int ath9k_init_p2p(struct ath_softc *sc)
527 {
528 return 0;
529 }
ath9k_deinit_p2p(struct ath_softc * sc)530 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
531 {
532 }
ath9k_p2p_remove_vif(struct ath_softc * sc,struct ieee80211_vif * vif)533 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
534 struct ieee80211_vif *vif)
535 {
536 }
ath9k_p2p_beacon_sync(struct ath_softc * sc)537 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
538 {
539 }
ath9k_p2p_bss_info_changed(struct ath_softc * sc,struct ieee80211_vif * vif)540 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
541 struct ieee80211_vif *vif)
542 {
543 }
ath9k_beacon_add_noa(struct ath_softc * sc,struct ath_vif * avp,struct sk_buff * skb)544 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
545 struct sk_buff *skb)
546 {
547 }
ath9k_p2p_ps_timer(struct ath_softc * sc)548 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
549 {
550 }
ath9k_chanctx_wake_queues(struct ath_softc * sc,struct ath_chanctx * ctx)551 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
552 struct ath_chanctx *ctx)
553 {
554 }
ath9k_chanctx_stop_queues(struct ath_softc * sc,struct ath_chanctx * ctx)555 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
556 struct ath_chanctx *ctx)
557 {
558 }
ath_chanctx_check_active(struct ath_softc * sc,struct ath_chanctx * ctx)559 static inline void ath_chanctx_check_active(struct ath_softc *sc,
560 struct ath_chanctx *ctx)
561 {
562 }
563
564 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
565
ath_txq_lock(struct ath_softc * sc,struct ath_txq * txq)566 static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
567 {
568 spin_lock_bh(&txq->axq_lock);
569 }
ath_txq_unlock(struct ath_softc * sc,struct ath_txq * txq)570 static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
571 {
572 spin_unlock_bh(&txq->axq_lock);
573 }
574
575 void ath_startrecv(struct ath_softc *sc);
576 bool ath_stoprecv(struct ath_softc *sc);
577 u32 ath_calcrxfilter(struct ath_softc *sc);
578 int ath_rx_init(struct ath_softc *sc, int nbufs);
579 void ath_rx_cleanup(struct ath_softc *sc);
580 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
581 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
582 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
583 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
584 bool ath_drain_all_txq(struct ath_softc *sc);
585 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
586 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
587 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
588 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
589 void ath_txq_schedule_all(struct ath_softc *sc);
590 int ath_tx_init(struct ath_softc *sc, int nbufs);
591 int ath_txq_update(struct ath_softc *sc, int qnum,
592 struct ath9k_tx_queue_info *q);
593 u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
594 int width, int half_gi, bool shortPreamble);
595 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
596 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
597 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
598 struct ath_tx_control *txctl);
599 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
600 struct sk_buff *skb);
601 void ath_tx_tasklet(struct ath_softc *sc);
602 void ath_tx_edma_tasklet(struct ath_softc *sc);
603 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
604 u16 tid, u16 *ssn);
605 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
606
607 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
608 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
609 struct ath_node *an);
610 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
611 struct ieee80211_sta *sta,
612 u16 tids, int nframes,
613 enum ieee80211_frame_release_type reason,
614 bool more_data);
615 void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
616
617 /********/
618 /* VIFs */
619 /********/
620
621 #define P2P_DEFAULT_CTWIN 10
622
623 struct ath_vif {
624 struct list_head list;
625
626 u16 seq_no;
627
628 /* BSS info */
629 u8 bssid[ETH_ALEN] __aligned(2);
630 u16 aid;
631 bool assoc;
632
633 struct ieee80211_vif *vif;
634 struct ath_node mcast_node;
635 int av_bslot;
636 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
637 struct ath_buf *av_bcbuf;
638 struct ath_chanctx *chanctx;
639
640 /* P2P Client */
641 struct ieee80211_noa_data noa;
642
643 /* P2P GO */
644 u8 noa_index;
645 u32 offchannel_start;
646 u32 offchannel_duration;
647
648 /* These are used for both periodic and one-shot */
649 u32 noa_start;
650 u32 noa_duration;
651 bool periodic_noa;
652 bool oneshot_noa;
653 };
654
655 struct ath9k_vif_iter_data {
656 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
657 u8 mask[ETH_ALEN]; /* bssid mask */
658 bool has_hw_macaddr;
659 u8 slottime;
660 bool beacons;
661
662 int naps; /* number of AP vifs */
663 int nmeshes; /* number of mesh vifs */
664 int nstations; /* number of station vifs */
665 int nwds; /* number of WDS vifs */
666 int nadhocs; /* number of adhoc vifs */
667 int nocbs; /* number of OCB vifs */
668 int nbcnvifs; /* number of beaconing vifs */
669 struct ieee80211_vif *primary_beacon_vif;
670 struct ieee80211_vif *primary_sta;
671 };
672
673 void ath9k_calculate_iter_data(struct ath_softc *sc,
674 struct ath_chanctx *ctx,
675 struct ath9k_vif_iter_data *iter_data);
676 void ath9k_calculate_summary_state(struct ath_softc *sc,
677 struct ath_chanctx *ctx);
678 void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
679
680 /*******************/
681 /* Beacon Handling */
682 /*******************/
683
684 /*
685 * Regardless of the number of beacons we stagger, (i.e. regardless of the
686 * number of BSSIDs) if a given beacon does not go out even after waiting this
687 * number of beacon intervals, the game's up.
688 */
689 #define BSTUCK_THRESH 9
690 #define ATH_BCBUF 8
691 #define ATH_DEFAULT_BINTVAL 100 /* TU */
692 #define ATH_DEFAULT_BMISS_LIMIT 10
693
694 #define TSF_TO_TU(_h,_l) \
695 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
696
697 struct ath_beacon {
698 enum {
699 OK, /* no change needed */
700 UPDATE, /* update pending */
701 COMMIT /* beacon sent, commit change */
702 } updateslot; /* slot time update fsm */
703
704 u32 beaconq;
705 u32 bmisscnt;
706 struct ieee80211_vif *bslot[ATH_BCBUF];
707 int slottime;
708 int slotupdate;
709 struct ath_descdma bdma;
710 struct ath_txq *cabq;
711 struct list_head bbuf;
712
713 bool tx_processed;
714 bool tx_last;
715 };
716
717 void ath9k_beacon_tasklet(struct tasklet_struct *t);
718 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
719 bool beacons);
720 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
721 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
722 void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
723 void ath9k_set_beacon(struct ath_softc *sc);
724 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
725 void ath9k_csa_update(struct ath_softc *sc);
726
727 /*******************/
728 /* Link Monitoring */
729 /*******************/
730
731 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
732 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
733 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
734 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
735 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
736 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
737 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
738 #define ATH_ANI_MAX_SKIP_COUNT 10
739 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
740 #define ATH_PLL_WORK_INTERVAL 100
741
742 void ath_hw_check_work(struct work_struct *work);
743 void ath_reset_work(struct work_struct *work);
744 bool ath_hw_check(struct ath_softc *sc);
745 void ath_hw_pll_work(struct work_struct *work);
746 void ath_paprd_calibrate(struct work_struct *work);
747 void ath_ani_calibrate(struct timer_list *t);
748 void ath_start_ani(struct ath_softc *sc);
749 void ath_stop_ani(struct ath_softc *sc);
750 void ath_check_ani(struct ath_softc *sc);
751 int ath_update_survey_stats(struct ath_softc *sc);
752 void ath_update_survey_nf(struct ath_softc *sc, int channel);
753 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
754 void ath_ps_full_sleep(struct timer_list *t);
755 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
756 bool sw_pending, bool timeout_override);
757
758 /**********/
759 /* BTCOEX */
760 /**********/
761
762 #define ATH_DUMP_BTCOEX(_s, _val) \
763 do { \
764 len += scnprintf(buf + len, size - len, \
765 "%20s : %10d\n", _s, (_val)); \
766 } while (0)
767
768 enum bt_op_flags {
769 BT_OP_PRIORITY_DETECTED,
770 BT_OP_SCAN,
771 };
772
773 struct ath_btcoex {
774 spinlock_t btcoex_lock;
775 struct timer_list period_timer; /* Timer for BT period */
776 struct timer_list no_stomp_timer;
777 u32 bt_priority_cnt;
778 unsigned long bt_priority_time;
779 unsigned long op_flags;
780 int bt_stomp_type; /* Types of BT stomping */
781 u32 btcoex_no_stomp; /* in msec */
782 u32 btcoex_period; /* in msec */
783 u32 btscan_no_stomp; /* in msec */
784 u32 duty_cycle;
785 u32 bt_wait_time;
786 int rssi_count;
787 struct ath_mci_profile mci;
788 u8 stomp_audio;
789 };
790
791 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
792 int ath9k_init_btcoex(struct ath_softc *sc);
793 void ath9k_deinit_btcoex(struct ath_softc *sc);
794 void ath9k_start_btcoex(struct ath_softc *sc);
795 void ath9k_stop_btcoex(struct ath_softc *sc);
796 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
797 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
798 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
799 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
800 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
801 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
802 #else
ath9k_init_btcoex(struct ath_softc * sc)803 static inline int ath9k_init_btcoex(struct ath_softc *sc)
804 {
805 return 0;
806 }
ath9k_deinit_btcoex(struct ath_softc * sc)807 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
808 {
809 }
ath9k_start_btcoex(struct ath_softc * sc)810 static inline void ath9k_start_btcoex(struct ath_softc *sc)
811 {
812 }
ath9k_stop_btcoex(struct ath_softc * sc)813 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
814 {
815 }
ath9k_btcoex_handle_interrupt(struct ath_softc * sc,u32 status)816 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
817 u32 status)
818 {
819 }
ath9k_btcoex_aggr_limit(struct ath_softc * sc,u32 max_4ms_framelen)820 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
821 u32 max_4ms_framelen)
822 {
823 return 0;
824 }
ath9k_btcoex_stop_gen_timer(struct ath_softc * sc)825 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
826 {
827 }
ath9k_dump_btcoex(struct ath_softc * sc,u8 * buf,u32 size)828 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
829 {
830 return 0;
831 }
832 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
833
834 /********************/
835 /* LED Control */
836 /********************/
837
838 #define ATH_LED_PIN_DEF 1
839 #define ATH_LED_PIN_9287 8
840 #define ATH_LED_PIN_9300 10
841 #define ATH_LED_PIN_9485 6
842 #define ATH_LED_PIN_9462 4
843
844 #ifdef CONFIG_MAC80211_LEDS
845 void ath_init_leds(struct ath_softc *sc);
846 void ath_deinit_leds(struct ath_softc *sc);
847 #else
ath_init_leds(struct ath_softc * sc)848 static inline void ath_init_leds(struct ath_softc *sc)
849 {
850 }
851
ath_deinit_leds(struct ath_softc * sc)852 static inline void ath_deinit_leds(struct ath_softc *sc)
853 {
854 }
855 #endif
856
857 /************************/
858 /* Wake on Wireless LAN */
859 /************************/
860
861 #ifdef CONFIG_ATH9K_WOW
862 void ath9k_init_wow(struct ieee80211_hw *hw);
863 void ath9k_deinit_wow(struct ieee80211_hw *hw);
864 int ath9k_suspend(struct ieee80211_hw *hw,
865 struct cfg80211_wowlan *wowlan);
866 int ath9k_resume(struct ieee80211_hw *hw);
867 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
868 #else
ath9k_init_wow(struct ieee80211_hw * hw)869 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
870 {
871 }
ath9k_deinit_wow(struct ieee80211_hw * hw)872 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
873 {
874 }
ath9k_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wowlan)875 static inline int ath9k_suspend(struct ieee80211_hw *hw,
876 struct cfg80211_wowlan *wowlan)
877 {
878 return 0;
879 }
ath9k_resume(struct ieee80211_hw * hw)880 static inline int ath9k_resume(struct ieee80211_hw *hw)
881 {
882 return 0;
883 }
ath9k_set_wakeup(struct ieee80211_hw * hw,bool enabled)884 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
885 {
886 }
887 #endif /* CONFIG_ATH9K_WOW */
888
889 /*******************************/
890 /* Antenna diversity/combining */
891 /*******************************/
892
893 #define ATH_ANT_RX_CURRENT_SHIFT 4
894 #define ATH_ANT_RX_MAIN_SHIFT 2
895 #define ATH_ANT_RX_MASK 0x3
896
897 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
898 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
899 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
900 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
901 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
902 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
903 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
904 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
905 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
906
907 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
908 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
909 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
910
911 struct ath_ant_comb {
912 u16 count;
913 u16 total_pkt_count;
914 bool scan;
915 bool scan_not_start;
916 int main_total_rssi;
917 int alt_total_rssi;
918 int alt_recv_cnt;
919 int main_recv_cnt;
920 int rssi_lna1;
921 int rssi_lna2;
922 int rssi_add;
923 int rssi_sub;
924 int rssi_first;
925 int rssi_second;
926 int rssi_third;
927 int ant_ratio;
928 int ant_ratio2;
929 bool alt_good;
930 int quick_scan_cnt;
931 enum ath9k_ant_div_comb_lna_conf main_conf;
932 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
933 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
934 bool first_ratio;
935 bool second_ratio;
936 unsigned long scan_start_time;
937
938 /*
939 * Card-specific config values.
940 */
941 int low_rssi_thresh;
942 int fast_div_bias;
943 };
944
945 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
946
947 /********************/
948 /* Main driver core */
949 /********************/
950
951 #define ATH9K_PCI_CUS198 0x0001
952 #define ATH9K_PCI_CUS230 0x0002
953 #define ATH9K_PCI_CUS217 0x0004
954 #define ATH9K_PCI_CUS252 0x0008
955 #define ATH9K_PCI_WOW 0x0010
956 #define ATH9K_PCI_BT_ANT_DIV 0x0020
957 #define ATH9K_PCI_D3_L1_WAR 0x0040
958 #define ATH9K_PCI_AR9565_1ANT 0x0080
959 #define ATH9K_PCI_AR9565_2ANT 0x0100
960 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
961 #define ATH9K_PCI_KILLER 0x0400
962 #define ATH9K_PCI_LED_ACT_HI 0x0800
963
964 /*
965 * Default cache line size, in bytes.
966 * Used when PCI device not fully initialized by bootrom/BIOS
967 */
968 #define DEFAULT_CACHELINE 32
969 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
970 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
971 #define MAX_GTT_CNT 5
972
973 /* Powersave flags */
974 #define PS_WAIT_FOR_BEACON BIT(0)
975 #define PS_WAIT_FOR_CAB BIT(1)
976 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
977 #define PS_WAIT_FOR_TX_ACK BIT(3)
978 #define PS_BEACON_SYNC BIT(4)
979 #define PS_WAIT_FOR_ANI BIT(5)
980
981 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
982
983 struct ath_softc {
984 struct ieee80211_hw *hw;
985 struct device *dev;
986
987 struct survey_info *cur_survey;
988 struct survey_info survey[ATH9K_NUM_CHANNELS];
989
990 spinlock_t intr_lock;
991 struct tasklet_struct intr_tq;
992 struct tasklet_struct bcon_tasklet;
993 struct ath_hw *sc_ah;
994 void __iomem *mem;
995 int irq;
996 spinlock_t sc_serial_rw;
997 spinlock_t sc_pm_lock;
998 spinlock_t sc_pcu_lock;
999 struct mutex mutex;
1000 struct work_struct paprd_work;
1001 struct work_struct hw_reset_work;
1002 struct completion paprd_complete;
1003 wait_queue_head_t tx_wait;
1004
1005 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
1006 struct work_struct chanctx_work;
1007 struct ath_gen_timer *p2p_ps_timer;
1008 struct ath_vif *p2p_ps_vif;
1009 struct ath_chanctx_sched sched;
1010 struct ath_offchannel offchannel;
1011 struct ath_chanctx *next_chan;
1012 struct completion go_beacon;
1013 struct timespec64 last_event_time;
1014 #endif
1015
1016 unsigned long driver_data;
1017
1018 u8 gtt_cnt;
1019 u32 intrstatus;
1020 u16 ps_flags; /* PS_* */
1021 bool ps_enabled;
1022 bool ps_idle;
1023 short nbcnvifs;
1024 unsigned long ps_usecount;
1025
1026 struct ath_rx rx;
1027 struct ath_tx tx;
1028 struct ath_beacon beacon;
1029
1030 struct cfg80211_chan_def cur_chandef;
1031 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1032 struct ath_chanctx *cur_chan;
1033 spinlock_t chan_lock;
1034
1035 #ifdef CONFIG_MAC80211_LEDS
1036 bool led_registered;
1037 char led_name[32];
1038 struct led_classdev led_cdev;
1039 #endif
1040
1041 #ifdef CONFIG_ATH9K_DEBUGFS
1042 struct ath9k_debug debug;
1043 #endif
1044 struct delayed_work hw_check_work;
1045 struct delayed_work hw_pll_work;
1046 struct timer_list sleep_timer;
1047
1048 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1049 struct ath_btcoex btcoex;
1050 struct ath_mci_coex mci_coex;
1051 struct work_struct mci_work;
1052 #endif
1053
1054 struct ath_descdma txsdma;
1055
1056 struct ath_ant_comb ant_comb;
1057 u8 ant_tx, ant_rx;
1058 struct dfs_pattern_detector *dfs_detector;
1059 u64 dfs_prev_pulse_ts;
1060 u32 wow_enabled;
1061
1062 struct ath_spec_scan_priv spec_priv;
1063
1064 struct ieee80211_vif *tx99_vif;
1065 struct sk_buff *tx99_skb;
1066 bool tx99_state;
1067 s16 tx99_power;
1068
1069 #ifdef CONFIG_ATH9K_WOW
1070 u32 wow_intr_before_sleep;
1071 bool force_wow;
1072 #endif
1073
1074 #ifdef CONFIG_ATH9K_HWRNG
1075 u32 rng_last;
1076 struct task_struct *rng_task;
1077 #endif
1078 };
1079
1080 /********/
1081 /* TX99 */
1082 /********/
1083
1084 #ifdef CONFIG_ATH9K_TX99
1085 void ath9k_tx99_init_debug(struct ath_softc *sc);
1086 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1087 struct ath_tx_control *txctl);
1088 #else
ath9k_tx99_init_debug(struct ath_softc * sc)1089 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1090 {
1091 }
ath9k_tx99_send(struct ath_softc * sc,struct sk_buff * skb,struct ath_tx_control * txctl)1092 static inline int ath9k_tx99_send(struct ath_softc *sc,
1093 struct sk_buff *skb,
1094 struct ath_tx_control *txctl)
1095 {
1096 return 0;
1097 }
1098 #endif /* CONFIG_ATH9K_TX99 */
1099
1100 /***************************/
1101 /* Random Number Generator */
1102 /***************************/
1103 #ifdef CONFIG_ATH9K_HWRNG
1104 void ath9k_rng_start(struct ath_softc *sc);
1105 void ath9k_rng_stop(struct ath_softc *sc);
1106 #else
ath9k_rng_start(struct ath_softc * sc)1107 static inline void ath9k_rng_start(struct ath_softc *sc)
1108 {
1109 }
1110
ath9k_rng_stop(struct ath_softc * sc)1111 static inline void ath9k_rng_stop(struct ath_softc *sc)
1112 {
1113 }
1114 #endif
1115
ath_read_cachesize(struct ath_common * common,int * csz)1116 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1117 {
1118 common->bus_ops->read_cachesize(common, csz);
1119 }
1120
1121 void ath9k_tasklet(struct tasklet_struct *t);
1122 int ath_cabq_update(struct ath_softc *);
1123 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1124 irqreturn_t ath_isr(int irq, void *dev);
1125 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1126 void ath_cancel_work(struct ath_softc *sc);
1127 void ath_restart_work(struct ath_softc *sc);
1128 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1129 const struct ath_bus_ops *bus_ops);
1130 void ath9k_deinit_device(struct ath_softc *sc);
1131 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1132 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1133 void ath_start_rfkill_poll(struct ath_softc *sc);
1134 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1135 void ath9k_ps_wakeup(struct ath_softc *sc);
1136 void ath9k_ps_restore(struct ath_softc *sc);
1137
1138 #ifdef CONFIG_ATH9K_PCI
1139 int ath_pci_init(void);
1140 void ath_pci_exit(void);
1141 #else
ath_pci_init(void)1142 static inline int ath_pci_init(void) { return 0; };
ath_pci_exit(void)1143 static inline void ath_pci_exit(void) {};
1144 #endif
1145
1146 #ifdef CONFIG_ATH9K_AHB
1147 int ath_ahb_init(void);
1148 void ath_ahb_exit(void);
1149 #else
ath_ahb_init(void)1150 static inline int ath_ahb_init(void) { return 0; };
ath_ahb_exit(void)1151 static inline void ath_ahb_exit(void) {};
1152 #endif
1153
1154 #endif /* ATH9K_H */
1155