?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
gpio: rcar: Fix runtime PM imbalance on error
[linux/fpc-iii.git] / drivers / net / wireless / ath / ath9k / ath9k.h
bloba412b352182c8fb0d8a6b4d86b83daf9a2f54a51
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 : 7;
181 u8 baw_tracked : 1;
182 u8 tx_power;
183 enum ath9k_key_type keytype:2;
184 };
185
186 struct ath_rxbuf {
187 struct list_head list;
188 struct sk_buff *bf_mpdu;
189 void *bf_desc;
190 dma_addr_t bf_daddr;
191 dma_addr_t bf_buf_addr;
192 };
193
194 /**
195 * enum buffer_type - Buffer type flags
196 *
197 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
198 * @BUF_AGGR: Indicates whether the buffer can be aggregated
199 * (used in aggregation scheduling)
200 */
201 enum buffer_type {
202 BUF_AMPDU = BIT(0),
203 BUF_AGGR = BIT(1),
204 };
205
206 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
207 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
208
209 struct ath_buf_state {
210 u8 bf_type;
211 u8 bfs_paprd;
212 u8 ndelim;
213 bool stale;
214 u16 seqno;
215 unsigned long bfs_paprd_timestamp;
216 };
217
218 struct ath_buf {
219 struct list_head list;
220 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
221 an aggregate) */
222 struct ath_buf *bf_next; /* next subframe in the aggregate */
223 struct sk_buff *bf_mpdu; /* enclosing frame structure */
224 void *bf_desc; /* virtual addr of desc */
225 dma_addr_t bf_daddr; /* physical addr of desc */
226 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
227 struct ieee80211_tx_rate rates[4];
228 struct ath_buf_state bf_state;
229 };
230
231 struct ath_atx_tid {
232 struct list_head list;
233 struct sk_buff_head retry_q;
234 struct ath_node *an;
235 struct ath_txq *txq;
236 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
237 u16 seq_start;
238 u16 seq_next;
239 u16 baw_size;
240 u8 tidno;
241 int baw_head; /* first un-acked tx buffer */
242 int baw_tail; /* next unused tx buffer slot */
243
244 s8 bar_index;
245 bool active;
246 bool clear_ps_filter;
247 };
248
249 void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
250
251 struct ath_node {
252 struct ath_softc *sc;
253 struct ieee80211_sta *sta; /* station struct we're part of */
254 struct ieee80211_vif *vif; /* interface with which we're associated */
255
256 u16 maxampdu;
257 u8 mpdudensity;
258 s8 ps_key;
259
260 bool sleeping;
261 bool no_ps_filter;
262
263 #ifdef CONFIG_ATH9K_STATION_STATISTICS
264 struct ath_rx_rate_stats rx_rate_stats;
265 #endif
266 u8 key_idx[4];
267
268 int ackto;
269 struct list_head list;
270 };
271
272 struct ath_tx_control {
273 struct ath_txq *txq;
274 struct ath_node *an;
275 struct ieee80211_sta *sta;
276 u8 paprd;
277 };
278
279
280 /**
281 * @txq_map: Index is mac80211 queue number. This is
282 * not necessarily the same as the hardware queue number
283 * (axq_qnum).
284 */
285 struct ath_tx {
286 u32 txqsetup;
287 spinlock_t txbuflock;
288 struct list_head txbuf;
289 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
290 struct ath_descdma txdma;
291 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
292 struct ath_txq *uapsdq;
293 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
294 };
295
296 struct ath_rx_edma {
297 struct sk_buff_head rx_fifo;
298 u32 rx_fifo_hwsize;
299 };
300
301 struct ath_rx {
302 u8 defant;
303 u8 rxotherant;
304 bool discard_next;
305 u32 *rxlink;
306 u32 num_pkts;
307 struct list_head rxbuf;
308 struct ath_descdma rxdma;
309 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
310
311 struct ath_rxbuf *buf_hold;
312 struct sk_buff *frag;
313
314 u32 ampdu_ref;
315 };
316
317 /*******************/
318 /* Channel Context */
319 /*******************/
320
321 struct ath_acq {
322 struct list_head acq_new;
323 struct list_head acq_old;
324 spinlock_t lock;
325 };
326
327 struct ath_chanctx {
328 struct cfg80211_chan_def chandef;
329 struct list_head vifs;
330 struct ath_acq acq[IEEE80211_NUM_ACS];
331 int hw_queue_base;
332
333 /* do not dereference, use for comparison only */
334 struct ieee80211_vif *primary_sta;
335
336 struct ath_beacon_config beacon;
337 struct ath9k_hw_cal_data caldata;
338 struct timespec64 tsf_ts;
339 u64 tsf_val;
340 u32 last_beacon;
341
342 int flush_timeout;
343 u16 txpower;
344 u16 cur_txpower;
345 bool offchannel;
346 bool stopped;
347 bool active;
348 bool assigned;
349 bool switch_after_beacon;
350
351 short nvifs;
352 short nvifs_assigned;
353 unsigned int rxfilter;
354 };
355
356 enum ath_chanctx_event {
357 ATH_CHANCTX_EVENT_BEACON_PREPARE,
358 ATH_CHANCTX_EVENT_BEACON_SENT,
359 ATH_CHANCTX_EVENT_TSF_TIMER,
360 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
361 ATH_CHANCTX_EVENT_AUTHORIZED,
362 ATH_CHANCTX_EVENT_SWITCH,
363 ATH_CHANCTX_EVENT_ASSIGN,
364 ATH_CHANCTX_EVENT_UNASSIGN,
365 ATH_CHANCTX_EVENT_CHANGE,
366 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
367 };
368
369 enum ath_chanctx_state {
370 ATH_CHANCTX_STATE_IDLE,
371 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
372 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
373 ATH_CHANCTX_STATE_SWITCH,
374 ATH_CHANCTX_STATE_FORCE_ACTIVE,
375 };
376
377 struct ath_chanctx_sched {
378 bool beacon_pending;
379 bool beacon_adjust;
380 bool offchannel_pending;
381 bool wait_switch;
382 bool force_noa_update;
383 bool extend_absence;
384 bool mgd_prepare_tx;
385 enum ath_chanctx_state state;
386 u8 beacon_miss;
387
388 u32 next_tbtt;
389 u32 switch_start_time;
390 unsigned int offchannel_duration;
391 unsigned int channel_switch_time;
392
393 /* backup, in case the hardware timer fails */
394 struct timer_list timer;
395 };
396
397 enum ath_offchannel_state {
398 ATH_OFFCHANNEL_IDLE,
399 ATH_OFFCHANNEL_PROBE_SEND,
400 ATH_OFFCHANNEL_PROBE_WAIT,
401 ATH_OFFCHANNEL_SUSPEND,
402 ATH_OFFCHANNEL_ROC_START,
403 ATH_OFFCHANNEL_ROC_WAIT,
404 ATH_OFFCHANNEL_ROC_DONE,
405 };
406
407 enum ath_roc_complete_reason {
408 ATH_ROC_COMPLETE_EXPIRE,
409 ATH_ROC_COMPLETE_ABORT,
410 ATH_ROC_COMPLETE_CANCEL,
411 };
412
413 struct ath_offchannel {
414 struct ath_chanctx chan;
415 struct timer_list timer;
416 struct cfg80211_scan_request *scan_req;
417 struct ieee80211_vif *scan_vif;
418 int scan_idx;
419 enum ath_offchannel_state state;
420 struct ieee80211_channel *roc_chan;
421 struct ieee80211_vif *roc_vif;
422 int roc_duration;
423 int duration;
424 };
425
426 static inline struct ath_atx_tid *
427 ath_node_to_tid(struct ath_node *an, u8 tidno)
428 {
429 struct ieee80211_sta *sta = an->sta;
430 struct ieee80211_vif *vif = an->vif;
431 struct ieee80211_txq *txq;
432
433 BUG_ON(!vif);
434 if (sta)
435 txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
436 else
437 txq = vif->txq;
438
439 return (struct ath_atx_tid *) txq->drv_priv;
440 }
441
442 #define case_rtn_string(val) case val: return #val
443
444 #define ath_for_each_chanctx(_sc, _ctx) \
445 for (ctx = &sc->chanctx[0]; \
446 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
447 ctx++)
448
449 void ath_chanctx_init(struct ath_softc *sc);
450 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
451 struct cfg80211_chan_def *chandef);
452
453 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
454
455 static inline struct ath_chanctx *
456 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
457 {
458 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
459 return *ptr;
460 }
461
462 bool ath9k_is_chanctx_enabled(void);
463 void ath9k_fill_chanctx_ops(void);
464 void ath9k_init_channel_context(struct ath_softc *sc);
465 void ath9k_offchannel_init(struct ath_softc *sc);
466 void ath9k_deinit_channel_context(struct ath_softc *sc);
467 int ath9k_init_p2p(struct ath_softc *sc);
468 void ath9k_deinit_p2p(struct ath_softc *sc);
469 void ath9k_p2p_remove_vif(struct ath_softc *sc,
470 struct ieee80211_vif *vif);
471 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
472 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
473 struct ieee80211_vif *vif);
474 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
475 struct sk_buff *skb);
476 void ath9k_p2p_ps_timer(void *priv);
477 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
478 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
479 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
480
481 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
482 enum ath_chanctx_event ev);
483 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
484 enum ath_chanctx_event ev);
485 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
486 enum ath_chanctx_event ev);
487 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
488 void ath_offchannel_next(struct ath_softc *sc);
489 void ath_scan_complete(struct ath_softc *sc, bool abort);
490 void ath_roc_complete(struct ath_softc *sc,
491 enum ath_roc_complete_reason reason);
492 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
493
494 #else
495
496 static inline bool ath9k_is_chanctx_enabled(void)
497 {
498 return false;
499 }
500 static inline void ath9k_fill_chanctx_ops(void)
501 {
502 }
503 static inline void ath9k_init_channel_context(struct ath_softc *sc)
504 {
505 }
506 static inline void ath9k_offchannel_init(struct ath_softc *sc)
507 {
508 }
509 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
510 {
511 }
512 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
513 enum ath_chanctx_event ev)
514 {
515 }
516 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
517 enum ath_chanctx_event ev)
518 {
519 }
520 static inline void ath_chanctx_event(struct ath_softc *sc,
521 struct ieee80211_vif *vif,
522 enum ath_chanctx_event ev)
523 {
524 }
525 static inline int ath9k_init_p2p(struct ath_softc *sc)
526 {
527 return 0;
528 }
529 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
530 {
531 }
532 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
533 struct ieee80211_vif *vif)
534 {
535 }
536 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
537 {
538 }
539 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
540 struct ieee80211_vif *vif)
541 {
542 }
543 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
544 struct sk_buff *skb)
545 {
546 }
547 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
548 {
549 }
550 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
551 struct ath_chanctx *ctx)
552 {
553 }
554 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
555 struct ath_chanctx *ctx)
556 {
557 }
558 static inline void ath_chanctx_check_active(struct ath_softc *sc,
559 struct ath_chanctx *ctx)
560 {
561 }
562
563 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
564
565 static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
566 {
567 spin_lock_bh(&txq->axq_lock);
568 }
569 static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
570 {
571 spin_unlock_bh(&txq->axq_lock);
572 }
573
574 void ath_startrecv(struct ath_softc *sc);
575 bool ath_stoprecv(struct ath_softc *sc);
576 u32 ath_calcrxfilter(struct ath_softc *sc);
577 int ath_rx_init(struct ath_softc *sc, int nbufs);
578 void ath_rx_cleanup(struct ath_softc *sc);
579 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
580 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
581 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
582 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
583 bool ath_drain_all_txq(struct ath_softc *sc);
584 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
585 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
586 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
587 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
588 void ath_txq_schedule_all(struct ath_softc *sc);
589 int ath_tx_init(struct ath_softc *sc, int nbufs);
590 int ath_txq_update(struct ath_softc *sc, int qnum,
591 struct ath9k_tx_queue_info *q);
592 u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
593 int width, int half_gi, bool shortPreamble);
594 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
595 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
596 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
597 struct ath_tx_control *txctl);
598 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
599 struct sk_buff *skb);
600 void ath_tx_tasklet(struct ath_softc *sc);
601 void ath_tx_edma_tasklet(struct ath_softc *sc);
602 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
603 u16 tid, u16 *ssn);
604 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
605
606 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
607 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
608 struct ath_node *an);
609 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
610 struct ieee80211_sta *sta,
611 u16 tids, int nframes,
612 enum ieee80211_frame_release_type reason,
613 bool more_data);
614 void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
615
616 /********/
617 /* VIFs */
618 /********/
619
620 #define P2P_DEFAULT_CTWIN 10
621
622 struct ath_vif {
623 struct list_head list;
624
625 u16 seq_no;
626
627 /* BSS info */
628 u8 bssid[ETH_ALEN] __aligned(2);
629 u16 aid;
630 bool assoc;
631
632 struct ieee80211_vif *vif;
633 struct ath_node mcast_node;
634 int av_bslot;
635 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
636 struct ath_buf *av_bcbuf;
637 struct ath_chanctx *chanctx;
638
639 /* P2P Client */
640 struct ieee80211_noa_data noa;
641
642 /* P2P GO */
643 u8 noa_index;
644 u32 offchannel_start;
645 u32 offchannel_duration;
646
647 /* These are used for both periodic and one-shot */
648 u32 noa_start;
649 u32 noa_duration;
650 bool periodic_noa;
651 bool oneshot_noa;
652 };
653
654 struct ath9k_vif_iter_data {
655 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
656 u8 mask[ETH_ALEN]; /* bssid mask */
657 bool has_hw_macaddr;
658 u8 slottime;
659 bool beacons;
660
661 int naps; /* number of AP vifs */
662 int nmeshes; /* number of mesh vifs */
663 int nstations; /* number of station vifs */
664 int nwds; /* number of WDS vifs */
665 int nadhocs; /* number of adhoc vifs */
666 int nocbs; /* number of OCB vifs */
667 int nbcnvifs; /* number of beaconing vifs */
668 struct ieee80211_vif *primary_beacon_vif;
669 struct ieee80211_vif *primary_sta;
670 };
671
672 void ath9k_calculate_iter_data(struct ath_softc *sc,
673 struct ath_chanctx *ctx,
674 struct ath9k_vif_iter_data *iter_data);
675 void ath9k_calculate_summary_state(struct ath_softc *sc,
676 struct ath_chanctx *ctx);
677 void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
678
679 /*******************/
680 /* Beacon Handling */
681 /*******************/
682
683 /*
684 * Regardless of the number of beacons we stagger, (i.e. regardless of the
685 * number of BSSIDs) if a given beacon does not go out even after waiting this
686 * number of beacon intervals, the game's up.
687 */
688 #define BSTUCK_THRESH 9
689 #define ATH_BCBUF 8
690 #define ATH_DEFAULT_BINTVAL 100 /* TU */
691 #define ATH_DEFAULT_BMISS_LIMIT 10
692
693 #define TSF_TO_TU(_h,_l) \
694 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
695
696 struct ath_beacon {
697 enum {
698 OK, /* no change needed */
699 UPDATE, /* update pending */
700 COMMIT /* beacon sent, commit change */
701 } updateslot; /* slot time update fsm */
702
703 u32 beaconq;
704 u32 bmisscnt;
705 struct ieee80211_vif *bslot[ATH_BCBUF];
706 int slottime;
707 int slotupdate;
708 struct ath_descdma bdma;
709 struct ath_txq *cabq;
710 struct list_head bbuf;
711
712 bool tx_processed;
713 bool tx_last;
714 };
715
716 void ath9k_beacon_tasklet(unsigned long data);
717 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
718 bool beacons);
719 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
720 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
721 void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
722 void ath9k_set_beacon(struct ath_softc *sc);
723 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
724 void ath9k_csa_update(struct ath_softc *sc);
725
726 /*******************/
727 /* Link Monitoring */
728 /*******************/
729
730 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
731 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
732 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
733 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
734 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
735 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
736 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
737 #define ATH_ANI_MAX_SKIP_COUNT 10
738 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
739 #define ATH_PLL_WORK_INTERVAL 100
740
741 void ath_hw_check_work(struct work_struct *work);
742 void ath_reset_work(struct work_struct *work);
743 bool ath_hw_check(struct ath_softc *sc);
744 void ath_hw_pll_work(struct work_struct *work);
745 void ath_paprd_calibrate(struct work_struct *work);
746 void ath_ani_calibrate(struct timer_list *t);
747 void ath_start_ani(struct ath_softc *sc);
748 void ath_stop_ani(struct ath_softc *sc);
749 void ath_check_ani(struct ath_softc *sc);
750 int ath_update_survey_stats(struct ath_softc *sc);
751 void ath_update_survey_nf(struct ath_softc *sc, int channel);
752 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
753 void ath_ps_full_sleep(struct timer_list *t);
754 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
755 bool sw_pending, bool timeout_override);
756
757 /**********/
758 /* BTCOEX */
759 /**********/
760
761 #define ATH_DUMP_BTCOEX(_s, _val) \
762 do { \
763 len += scnprintf(buf + len, size - len, \
764 "%20s : %10d\n", _s, (_val)); \
765 } while (0)
766
767 enum bt_op_flags {
768 BT_OP_PRIORITY_DETECTED,
769 BT_OP_SCAN,
770 };
771
772 struct ath_btcoex {
773 spinlock_t btcoex_lock;
774 struct timer_list period_timer; /* Timer for BT period */
775 struct timer_list no_stomp_timer;
776 u32 bt_priority_cnt;
777 unsigned long bt_priority_time;
778 unsigned long op_flags;
779 int bt_stomp_type; /* Types of BT stomping */
780 u32 btcoex_no_stomp; /* in msec */
781 u32 btcoex_period; /* in msec */
782 u32 btscan_no_stomp; /* in msec */
783 u32 duty_cycle;
784 u32 bt_wait_time;
785 int rssi_count;
786 struct ath_mci_profile mci;
787 u8 stomp_audio;
788 };
789
790 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
791 int ath9k_init_btcoex(struct ath_softc *sc);
792 void ath9k_deinit_btcoex(struct ath_softc *sc);
793 void ath9k_start_btcoex(struct ath_softc *sc);
794 void ath9k_stop_btcoex(struct ath_softc *sc);
795 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
796 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
797 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
798 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
799 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
800 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
801 #else
802 static inline int ath9k_init_btcoex(struct ath_softc *sc)
803 {
804 return 0;
805 }
806 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
807 {
808 }
809 static inline void ath9k_start_btcoex(struct ath_softc *sc)
810 {
811 }
812 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
813 {
814 }
815 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
816 u32 status)
817 {
818 }
819 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
820 u32 max_4ms_framelen)
821 {
822 return 0;
823 }
824 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
825 {
826 }
827 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
828 {
829 return 0;
830 }
831 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
832
833 /********************/
834 /* LED Control */
835 /********************/
836
837 #define ATH_LED_PIN_DEF 1
838 #define ATH_LED_PIN_9287 8
839 #define ATH_LED_PIN_9300 10
840 #define ATH_LED_PIN_9485 6
841 #define ATH_LED_PIN_9462 4
842
843 #ifdef CONFIG_MAC80211_LEDS
844 void ath_init_leds(struct ath_softc *sc);
845 void ath_deinit_leds(struct ath_softc *sc);
846 #else
847 static inline void ath_init_leds(struct ath_softc *sc)
848 {
849 }
850
851 static inline void ath_deinit_leds(struct ath_softc *sc)
852 {
853 }
854 #endif
855
856 /************************/
857 /* Wake on Wireless LAN */
858 /************************/
859
860 #ifdef CONFIG_ATH9K_WOW
861 void ath9k_init_wow(struct ieee80211_hw *hw);
862 void ath9k_deinit_wow(struct ieee80211_hw *hw);
863 int ath9k_suspend(struct ieee80211_hw *hw,
864 struct cfg80211_wowlan *wowlan);
865 int ath9k_resume(struct ieee80211_hw *hw);
866 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
867 #else
868 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
869 {
870 }
871 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
872 {
873 }
874 static inline int ath9k_suspend(struct ieee80211_hw *hw,
875 struct cfg80211_wowlan *wowlan)
876 {
877 return 0;
878 }
879 static inline int ath9k_resume(struct ieee80211_hw *hw)
880 {
881 return 0;
882 }
883 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
884 {
885 }
886 #endif /* CONFIG_ATH9K_WOW */
887
888 /*******************************/
889 /* Antenna diversity/combining */
890 /*******************************/
891
892 #define ATH_ANT_RX_CURRENT_SHIFT 4
893 #define ATH_ANT_RX_MAIN_SHIFT 2
894 #define ATH_ANT_RX_MASK 0x3
895
896 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
897 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
898 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
899 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
900 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
901 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
902 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
903 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
904 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
905
906 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
907 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
908 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
909
910 struct ath_ant_comb {
911 u16 count;
912 u16 total_pkt_count;
913 bool scan;
914 bool scan_not_start;
915 int main_total_rssi;
916 int alt_total_rssi;
917 int alt_recv_cnt;
918 int main_recv_cnt;
919 int rssi_lna1;
920 int rssi_lna2;
921 int rssi_add;
922 int rssi_sub;
923 int rssi_first;
924 int rssi_second;
925 int rssi_third;
926 int ant_ratio;
927 int ant_ratio2;
928 bool alt_good;
929 int quick_scan_cnt;
930 enum ath9k_ant_div_comb_lna_conf main_conf;
931 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
932 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
933 bool first_ratio;
934 bool second_ratio;
935 unsigned long scan_start_time;
936
937 /*
938 * Card-specific config values.
939 */
940 int low_rssi_thresh;
941 int fast_div_bias;
942 };
943
944 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
945
946 /********************/
947 /* Main driver core */
948 /********************/
949
950 #define ATH9K_PCI_CUS198 0x0001
951 #define ATH9K_PCI_CUS230 0x0002
952 #define ATH9K_PCI_CUS217 0x0004
953 #define ATH9K_PCI_CUS252 0x0008
954 #define ATH9K_PCI_WOW 0x0010
955 #define ATH9K_PCI_BT_ANT_DIV 0x0020
956 #define ATH9K_PCI_D3_L1_WAR 0x0040
957 #define ATH9K_PCI_AR9565_1ANT 0x0080
958 #define ATH9K_PCI_AR9565_2ANT 0x0100
959 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
960 #define ATH9K_PCI_KILLER 0x0400
961 #define ATH9K_PCI_LED_ACT_HI 0x0800
962
963 /*
964 * Default cache line size, in bytes.
965 * Used when PCI device not fully initialized by bootrom/BIOS
966 */
967 #define DEFAULT_CACHELINE 32
968 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
969 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
970 #define MAX_GTT_CNT 5
971
972 /* Powersave flags */
973 #define PS_WAIT_FOR_BEACON BIT(0)
974 #define PS_WAIT_FOR_CAB BIT(1)
975 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
976 #define PS_WAIT_FOR_TX_ACK BIT(3)
977 #define PS_BEACON_SYNC BIT(4)
978 #define PS_WAIT_FOR_ANI BIT(5)
979
980 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
981
982 struct ath_softc {
983 struct ieee80211_hw *hw;
984 struct device *dev;
985
986 struct survey_info *cur_survey;
987 struct survey_info survey[ATH9K_NUM_CHANNELS];
988
989 spinlock_t intr_lock;
990 struct tasklet_struct intr_tq;
991 struct tasklet_struct bcon_tasklet;
992 struct ath_hw *sc_ah;
993 void __iomem *mem;
994 int irq;
995 spinlock_t sc_serial_rw;
996 spinlock_t sc_pm_lock;
997 spinlock_t sc_pcu_lock;
998 struct mutex mutex;
999 struct work_struct paprd_work;
1000 struct work_struct hw_reset_work;
1001 struct completion paprd_complete;
1002 wait_queue_head_t tx_wait;
1003
1004 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
1005 struct work_struct chanctx_work;
1006 struct ath_gen_timer *p2p_ps_timer;
1007 struct ath_vif *p2p_ps_vif;
1008 struct ath_chanctx_sched sched;
1009 struct ath_offchannel offchannel;
1010 struct ath_chanctx *next_chan;
1011 struct completion go_beacon;
1012 struct timespec64 last_event_time;
1013 #endif
1014
1015 unsigned long driver_data;
1016
1017 u8 gtt_cnt;
1018 u32 intrstatus;
1019 u16 ps_flags; /* PS_* */
1020 bool ps_enabled;
1021 bool ps_idle;
1022 short nbcnvifs;
1023 unsigned long ps_usecount;
1024
1025 struct ath_rx rx;
1026 struct ath_tx tx;
1027 struct ath_beacon beacon;
1028
1029 struct cfg80211_chan_def cur_chandef;
1030 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1031 struct ath_chanctx *cur_chan;
1032 spinlock_t chan_lock;
1033
1034 #ifdef CONFIG_MAC80211_LEDS
1035 bool led_registered;
1036 char led_name[32];
1037 struct led_classdev led_cdev;
1038 #endif
1039
1040 #ifdef CONFIG_ATH9K_DEBUGFS
1041 struct ath9k_debug debug;
1042 #endif
1043 struct delayed_work hw_check_work;
1044 struct delayed_work hw_pll_work;
1045 struct timer_list sleep_timer;
1046
1047 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1048 struct ath_btcoex btcoex;
1049 struct ath_mci_coex mci_coex;
1050 struct work_struct mci_work;
1051 #endif
1052
1053 struct ath_descdma txsdma;
1054
1055 struct ath_ant_comb ant_comb;
1056 u8 ant_tx, ant_rx;
1057 struct dfs_pattern_detector *dfs_detector;
1058 u64 dfs_prev_pulse_ts;
1059 u32 wow_enabled;
1060
1061 struct ath_spec_scan_priv spec_priv;
1062
1063 struct ieee80211_vif *tx99_vif;
1064 struct sk_buff *tx99_skb;
1065 bool tx99_state;
1066 s16 tx99_power;
1067
1068 #ifdef CONFIG_ATH9K_WOW
1069 u32 wow_intr_before_sleep;
1070 bool force_wow;
1071 #endif
1072
1073 #ifdef CONFIG_ATH9K_HWRNG
1074 u32 rng_last;
1075 struct task_struct *rng_task;
1076 #endif
1077 };
1078
1079 /********/
1080 /* TX99 */
1081 /********/
1082
1083 #ifdef CONFIG_ATH9K_TX99
1084 void ath9k_tx99_init_debug(struct ath_softc *sc);
1085 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1086 struct ath_tx_control *txctl);
1087 #else
1088 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1089 {
1090 }
1091 static inline int ath9k_tx99_send(struct ath_softc *sc,
1092 struct sk_buff *skb,
1093 struct ath_tx_control *txctl)
1094 {
1095 return 0;
1096 }
1097 #endif /* CONFIG_ATH9K_TX99 */
1098
1099 /***************************/
1100 /* Random Number Generator */
1101 /***************************/
1102 #ifdef CONFIG_ATH9K_HWRNG
1103 void ath9k_rng_start(struct ath_softc *sc);
1104 void ath9k_rng_stop(struct ath_softc *sc);
1105 #else
1106 static inline void ath9k_rng_start(struct ath_softc *sc)
1107 {
1108 }
1109
1110 static inline void ath9k_rng_stop(struct ath_softc *sc)
1111 {
1112 }
1113 #endif
1114
1115 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1116 {
1117 common->bus_ops->read_cachesize(common, csz);
1118 }
1119
1120 void ath9k_tasklet(unsigned long data);
1121 int ath_cabq_update(struct ath_softc *);
1122 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1123 irqreturn_t ath_isr(int irq, void *dev);
1124 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1125 void ath_cancel_work(struct ath_softc *sc);
1126 void ath_restart_work(struct ath_softc *sc);
1127 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1128 const struct ath_bus_ops *bus_ops);
1129 void ath9k_deinit_device(struct ath_softc *sc);
1130 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1131 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1132 void ath_start_rfkill_poll(struct ath_softc *sc);
1133 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1134 void ath9k_ps_wakeup(struct ath_softc *sc);
1135 void ath9k_ps_restore(struct ath_softc *sc);
1136
1137 #ifdef CONFIG_ATH9K_PCI
1138 int ath_pci_init(void);
1139 void ath_pci_exit(void);
1140 #else
1141 static inline int ath_pci_init(void) { return 0; };
1142 static inline void ath_pci_exit(void) {};
1143 #endif
1144
1145 #ifdef CONFIG_ATH9K_AHB
1146 int ath_ahb_init(void);
1147 void ath_ahb_exit(void);
1148 #else
1149 static inline int ath_ahb_init(void) { return 0; };
1150 static inline void ath_ahb_exit(void) {};
1151 #endif
1152
1153 #endif /* ATH9K_H */
Linux with added FPC-III support