2 * Copyright (c) 2008-2011 Atheros Communications Inc.
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.
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.
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>
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;
42 /*************************/
43 /* Descriptor Management */
44 /*************************/
46 #define ATH_TXSTATUS_RING_SIZE 512
48 /* Macro to expand scalars to 64-bit objects */
49 #define ito64(x) (sizeof(x) == 1) ? \
50 (((unsigned long long int)(x)) & (0xff)) : \
52 (((unsigned long long int)(x)) & 0xffff) : \
54 (((unsigned long long int)(x)) & 0xffffffff) : \
55 (unsigned long long int)(x))
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)); \
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)
71 dma_addr_t dd_desc_paddr;
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);
83 #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
85 /* increment with wrap-around */
86 #define INCR(_l, _sz) do { \
88 (_l) &= ((_sz) - 1); \
93 #define ATH_TXBUF_RESERVE 5
94 #define ATH_TXMAXTRY 13
95 #define ATH_MAX_SW_RETRIES 30
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 : \
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
115 #define ATH_AIRTIME_QUANTUM 300 /* usec */
117 /* Stop tx traffic 1ms before the GO goes away */
118 #define ATH_P2P_PS_STOP_TIME 1000
120 #define IEEE80211_SEQ_SEQ_SHIFT 4
121 #define IEEE80211_SEQ_MAX 4096
122 #define IEEE80211_WEP_IVLEN 3
123 #define IEEE80211_WEP_KIDLEN 1
124 #define IEEE80211_WEP_CRCLEN 4
125 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
126 (IEEE80211_WEP_IVLEN + \
127 IEEE80211_WEP_KIDLEN + \
128 IEEE80211_WEP_CRCLEN))
130 /* return whether a bit at index _n in bitmap _bm is set
131 * _sz is the size of the bitmap */
132 #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
133 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
135 /* return block-ack bitmap index given sequence and starting sequence */
136 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
138 /* return the seqno for _start + _offset */
139 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
141 /* returns delimiter padding required given the packet length */
142 #define ATH_AGGR_GET_NDELIM(_len) \
143 (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \
144 DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
146 #define BAW_WITHIN(_start, _bawsz, _seqno) \
147 ((((_seqno) - (_start)) & 4095) < (_bawsz))
149 #define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
151 #define IS_HT_RATE(rate) (rate & 0x80)
152 #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
153 #define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf))
161 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
162 u32 axq_qnum; /* ath9k hardware queue number */
164 struct list_head axq_q;
168 bool axq_tx_inprogress;
169 struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
173 struct sk_buff_head complete_q;
176 struct ath_frame_info {
186 enum ath9k_key_type keytype:2;
190 struct list_head list;
191 struct sk_buff *bf_mpdu;
194 dma_addr_t bf_buf_addr;
198 * enum buffer_type - Buffer type flags
200 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
201 * @BUF_AGGR: Indicates whether the buffer can be aggregated
202 * (used in aggregation scheduling)
209 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
210 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
212 struct ath_buf_state {
218 unsigned long bfs_paprd_timestamp;
222 struct list_head list;
223 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
225 struct ath_buf *bf_next; /* next subframe in the aggregate */
226 struct sk_buff *bf_mpdu; /* enclosing frame structure */
227 void *bf_desc; /* virtual addr of desc */
228 dma_addr_t bf_daddr; /* physical addr of desc */
229 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
230 struct ieee80211_tx_rate rates[4];
231 struct ath_buf_state bf_state;
235 struct list_head list;
236 struct sk_buff_head retry_q;
239 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
244 int baw_head; /* first un-acked tx buffer */
245 int baw_tail; /* next unused tx buffer slot */
249 bool clear_ps_filter;
253 void __ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
254 void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
257 struct ath_softc *sc;
258 struct ieee80211_sta *sta; /* station struct we're part of */
259 struct ieee80211_vif *vif; /* interface with which we're associated */
267 s64 airtime_deficit[IEEE80211_NUM_ACS];
268 u32 airtime_rx_start;
270 #ifdef CONFIG_ATH9K_STATION_STATISTICS
271 struct ath_rx_rate_stats rx_rate_stats;
272 struct ath_airtime_stats airtime_stats;
277 struct list_head list;
280 struct ath_tx_control {
283 struct ieee80211_sta *sta;
289 * @txq_map: Index is mac80211 queue number. This is
290 * not necessarily the same as the hardware queue number
295 spinlock_t txbuflock;
296 struct list_head txbuf;
297 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
298 struct ath_descdma txdma;
299 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
300 struct ath_txq *uapsdq;
301 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
305 struct sk_buff_head rx_fifo;
315 struct list_head rxbuf;
316 struct ath_descdma rxdma;
317 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
319 struct ath_rxbuf *buf_hold;
320 struct sk_buff *frag;
325 /*******************/
326 /* Channel Context */
327 /*******************/
330 struct list_head acq_new;
331 struct list_head acq_old;
336 struct cfg80211_chan_def chandef;
337 struct list_head vifs;
338 struct ath_acq acq[IEEE80211_NUM_ACS];
341 /* do not dereference, use for comparison only */
342 struct ieee80211_vif *primary_sta;
344 struct ath_beacon_config beacon;
345 struct ath9k_hw_cal_data caldata;
346 struct timespec64 tsf_ts;
357 bool switch_after_beacon;
360 short nvifs_assigned;
361 unsigned int rxfilter;
364 enum ath_chanctx_event {
365 ATH_CHANCTX_EVENT_BEACON_PREPARE,
366 ATH_CHANCTX_EVENT_BEACON_SENT,
367 ATH_CHANCTX_EVENT_TSF_TIMER,
368 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
369 ATH_CHANCTX_EVENT_AUTHORIZED,
370 ATH_CHANCTX_EVENT_SWITCH,
371 ATH_CHANCTX_EVENT_ASSIGN,
372 ATH_CHANCTX_EVENT_UNASSIGN,
373 ATH_CHANCTX_EVENT_CHANGE,
374 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
377 enum ath_chanctx_state {
378 ATH_CHANCTX_STATE_IDLE,
379 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
380 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
381 ATH_CHANCTX_STATE_SWITCH,
382 ATH_CHANCTX_STATE_FORCE_ACTIVE,
385 struct ath_chanctx_sched {
388 bool offchannel_pending;
390 bool force_noa_update;
393 enum ath_chanctx_state state;
397 u32 switch_start_time;
398 unsigned int offchannel_duration;
399 unsigned int channel_switch_time;
401 /* backup, in case the hardware timer fails */
402 struct timer_list timer;
405 enum ath_offchannel_state {
407 ATH_OFFCHANNEL_PROBE_SEND,
408 ATH_OFFCHANNEL_PROBE_WAIT,
409 ATH_OFFCHANNEL_SUSPEND,
410 ATH_OFFCHANNEL_ROC_START,
411 ATH_OFFCHANNEL_ROC_WAIT,
412 ATH_OFFCHANNEL_ROC_DONE,
415 enum ath_roc_complete_reason {
416 ATH_ROC_COMPLETE_EXPIRE,
417 ATH_ROC_COMPLETE_ABORT,
418 ATH_ROC_COMPLETE_CANCEL,
421 struct ath_offchannel {
422 struct ath_chanctx chan;
423 struct timer_list timer;
424 struct cfg80211_scan_request *scan_req;
425 struct ieee80211_vif *scan_vif;
427 enum ath_offchannel_state state;
428 struct ieee80211_channel *roc_chan;
429 struct ieee80211_vif *roc_vif;
434 static inline struct ath_atx_tid *
435 ath_node_to_tid(struct ath_node *an, u8 tidno)
437 struct ieee80211_sta *sta = an->sta;
438 struct ieee80211_vif *vif = an->vif;
439 struct ieee80211_txq *txq;
443 txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
447 return (struct ath_atx_tid *) txq->drv_priv;
450 #define case_rtn_string(val) case val: return #val
452 #define ath_for_each_chanctx(_sc, _ctx) \
453 for (ctx = &sc->chanctx[0]; \
454 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
457 void ath_chanctx_init(struct ath_softc *sc);
458 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
459 struct cfg80211_chan_def *chandef);
461 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
463 static inline struct ath_chanctx *
464 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
466 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
470 bool ath9k_is_chanctx_enabled(void);
471 void ath9k_fill_chanctx_ops(void);
472 void ath9k_init_channel_context(struct ath_softc *sc);
473 void ath9k_offchannel_init(struct ath_softc *sc);
474 void ath9k_deinit_channel_context(struct ath_softc *sc);
475 int ath9k_init_p2p(struct ath_softc *sc);
476 void ath9k_deinit_p2p(struct ath_softc *sc);
477 void ath9k_p2p_remove_vif(struct ath_softc *sc,
478 struct ieee80211_vif *vif);
479 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
480 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
481 struct ieee80211_vif *vif);
482 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
483 struct sk_buff *skb);
484 void ath9k_p2p_ps_timer(void *priv);
485 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
486 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
487 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
489 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
490 enum ath_chanctx_event ev);
491 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
492 enum ath_chanctx_event ev);
493 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
494 enum ath_chanctx_event ev);
495 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
496 void ath_offchannel_next(struct ath_softc *sc);
497 void ath_scan_complete(struct ath_softc *sc, bool abort);
498 void ath_roc_complete(struct ath_softc *sc,
499 enum ath_roc_complete_reason reason);
500 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
504 static inline bool ath9k_is_chanctx_enabled(void)
508 static inline void ath9k_fill_chanctx_ops(void)
511 static inline void ath9k_init_channel_context(struct ath_softc *sc)
514 static inline void ath9k_offchannel_init(struct ath_softc *sc)
517 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
520 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
521 enum ath_chanctx_event ev)
524 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
525 enum ath_chanctx_event ev)
528 static inline void ath_chanctx_event(struct ath_softc *sc,
529 struct ieee80211_vif *vif,
530 enum ath_chanctx_event ev)
533 static inline int ath9k_init_p2p(struct ath_softc *sc)
537 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
540 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
541 struct ieee80211_vif *vif)
544 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
547 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
548 struct ieee80211_vif *vif)
551 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
555 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
558 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
559 struct ath_chanctx *ctx)
562 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
563 struct ath_chanctx *ctx)
566 static inline void ath_chanctx_check_active(struct ath_softc *sc,
567 struct ath_chanctx *ctx)
571 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
573 static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
575 spin_lock_bh(&txq->axq_lock);
577 static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
579 spin_unlock_bh(&txq->axq_lock);
582 void ath_startrecv(struct ath_softc *sc);
583 bool ath_stoprecv(struct ath_softc *sc);
584 u32 ath_calcrxfilter(struct ath_softc *sc);
585 int ath_rx_init(struct ath_softc *sc, int nbufs);
586 void ath_rx_cleanup(struct ath_softc *sc);
587 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
588 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
589 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
590 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
591 bool ath_drain_all_txq(struct ath_softc *sc);
592 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
593 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
594 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
595 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
596 void ath_txq_schedule_all(struct ath_softc *sc);
597 int ath_tx_init(struct ath_softc *sc, int nbufs);
598 int ath_txq_update(struct ath_softc *sc, int qnum,
599 struct ath9k_tx_queue_info *q);
600 u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
601 int width, int half_gi, bool shortPreamble);
602 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
603 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
604 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
605 struct ath_tx_control *txctl);
606 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
607 struct sk_buff *skb);
608 void ath_tx_tasklet(struct ath_softc *sc);
609 void ath_tx_edma_tasklet(struct ath_softc *sc);
610 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
612 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
614 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
615 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
616 struct ath_node *an);
617 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
618 struct ieee80211_sta *sta,
619 u16 tids, int nframes,
620 enum ieee80211_frame_release_type reason,
622 void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
628 #define P2P_DEFAULT_CTWIN 10
631 struct list_head list;
636 u8 bssid[ETH_ALEN] __aligned(2);
640 struct ieee80211_vif *vif;
641 struct ath_node mcast_node;
643 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
644 struct ath_buf *av_bcbuf;
645 struct ath_chanctx *chanctx;
648 struct ieee80211_noa_data noa;
652 u32 offchannel_start;
653 u32 offchannel_duration;
655 /* These are used for both periodic and one-shot */
662 struct ath9k_vif_iter_data {
663 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
664 u8 mask[ETH_ALEN]; /* bssid mask */
669 int naps; /* number of AP vifs */
670 int nmeshes; /* number of mesh vifs */
671 int nstations; /* number of station vifs */
672 int nwds; /* number of WDS vifs */
673 int nadhocs; /* number of adhoc vifs */
674 int nocbs; /* number of OCB vifs */
675 int nbcnvifs; /* number of beaconing vifs */
676 struct ieee80211_vif *primary_beacon_vif;
677 struct ieee80211_vif *primary_sta;
680 void ath9k_calculate_iter_data(struct ath_softc *sc,
681 struct ath_chanctx *ctx,
682 struct ath9k_vif_iter_data *iter_data);
683 void ath9k_calculate_summary_state(struct ath_softc *sc,
684 struct ath_chanctx *ctx);
685 void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
687 /*******************/
688 /* Beacon Handling */
689 /*******************/
692 * Regardless of the number of beacons we stagger, (i.e. regardless of the
693 * number of BSSIDs) if a given beacon does not go out even after waiting this
694 * number of beacon intervals, the game's up.
696 #define BSTUCK_THRESH 9
698 #define ATH_DEFAULT_BINTVAL 100 /* TU */
699 #define ATH_DEFAULT_BMISS_LIMIT 10
701 #define TSF_TO_TU(_h,_l) \
702 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
706 OK, /* no change needed */
707 UPDATE, /* update pending */
708 COMMIT /* beacon sent, commit change */
709 } updateslot; /* slot time update fsm */
713 struct ieee80211_vif *bslot[ATH_BCBUF];
716 struct ath_descdma bdma;
717 struct ath_txq *cabq;
718 struct list_head bbuf;
724 void ath9k_beacon_tasklet(unsigned long data);
725 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
727 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
728 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
729 void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
730 void ath9k_set_beacon(struct ath_softc *sc);
731 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
732 void ath9k_csa_update(struct ath_softc *sc);
734 /*******************/
735 /* Link Monitoring */
736 /*******************/
738 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
739 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
740 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
741 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
742 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
743 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
744 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
745 #define ATH_ANI_MAX_SKIP_COUNT 10
746 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
747 #define ATH_PLL_WORK_INTERVAL 100
749 void ath_hw_check_work(struct work_struct *work);
750 void ath_reset_work(struct work_struct *work);
751 bool ath_hw_check(struct ath_softc *sc);
752 void ath_hw_pll_work(struct work_struct *work);
753 void ath_paprd_calibrate(struct work_struct *work);
754 void ath_ani_calibrate(struct timer_list *t);
755 void ath_start_ani(struct ath_softc *sc);
756 void ath_stop_ani(struct ath_softc *sc);
757 void ath_check_ani(struct ath_softc *sc);
758 int ath_update_survey_stats(struct ath_softc *sc);
759 void ath_update_survey_nf(struct ath_softc *sc, int channel);
760 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
761 void ath_ps_full_sleep(struct timer_list *t);
762 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
763 bool sw_pending, bool timeout_override);
769 #define ATH_DUMP_BTCOEX(_s, _val) \
771 len += scnprintf(buf + len, size - len, \
772 "%20s : %10d\n", _s, (_val)); \
776 BT_OP_PRIORITY_DETECTED,
781 spinlock_t btcoex_lock;
782 struct timer_list period_timer; /* Timer for BT period */
783 struct timer_list no_stomp_timer;
785 unsigned long bt_priority_time;
786 unsigned long op_flags;
787 int bt_stomp_type; /* Types of BT stomping */
788 u32 btcoex_no_stomp; /* in msec */
789 u32 btcoex_period; /* in msec */
790 u32 btscan_no_stomp; /* in msec */
794 struct ath_mci_profile mci;
798 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
799 int ath9k_init_btcoex(struct ath_softc *sc);
800 void ath9k_deinit_btcoex(struct ath_softc *sc);
801 void ath9k_start_btcoex(struct ath_softc *sc);
802 void ath9k_stop_btcoex(struct ath_softc *sc);
803 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
804 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
805 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
806 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
807 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
808 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
810 static inline int ath9k_init_btcoex(struct ath_softc *sc)
814 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
817 static inline void ath9k_start_btcoex(struct ath_softc *sc)
820 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
823 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
827 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
828 u32 max_4ms_framelen)
832 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
835 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
839 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
841 /********************/
843 /********************/
845 #define ATH_LED_PIN_DEF 1
846 #define ATH_LED_PIN_9287 8
847 #define ATH_LED_PIN_9300 10
848 #define ATH_LED_PIN_9485 6
849 #define ATH_LED_PIN_9462 4
851 #ifdef CONFIG_MAC80211_LEDS
852 void ath_init_leds(struct ath_softc *sc);
853 void ath_deinit_leds(struct ath_softc *sc);
855 static inline void ath_init_leds(struct ath_softc *sc)
859 static inline void ath_deinit_leds(struct ath_softc *sc)
864 /************************/
865 /* Wake on Wireless LAN */
866 /************************/
868 #ifdef CONFIG_ATH9K_WOW
869 void ath9k_init_wow(struct ieee80211_hw *hw);
870 void ath9k_deinit_wow(struct ieee80211_hw *hw);
871 int ath9k_suspend(struct ieee80211_hw *hw,
872 struct cfg80211_wowlan *wowlan);
873 int ath9k_resume(struct ieee80211_hw *hw);
874 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
876 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
879 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
882 static inline int ath9k_suspend(struct ieee80211_hw *hw,
883 struct cfg80211_wowlan *wowlan)
887 static inline int ath9k_resume(struct ieee80211_hw *hw)
891 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
894 #endif /* CONFIG_ATH9K_WOW */
896 /*******************************/
897 /* Antenna diversity/combining */
898 /*******************************/
900 #define ATH_ANT_RX_CURRENT_SHIFT 4
901 #define ATH_ANT_RX_MAIN_SHIFT 2
902 #define ATH_ANT_RX_MASK 0x3
904 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
905 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
906 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
907 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
908 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
909 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
910 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
911 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
912 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
914 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
915 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
916 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
918 struct ath_ant_comb {
938 enum ath9k_ant_div_comb_lna_conf main_conf;
939 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
940 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
943 unsigned long scan_start_time;
946 * Card-specific config values.
952 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
954 /********************/
955 /* Main driver core */
956 /********************/
958 #define ATH9K_PCI_CUS198 0x0001
959 #define ATH9K_PCI_CUS230 0x0002
960 #define ATH9K_PCI_CUS217 0x0004
961 #define ATH9K_PCI_CUS252 0x0008
962 #define ATH9K_PCI_WOW 0x0010
963 #define ATH9K_PCI_BT_ANT_DIV 0x0020
964 #define ATH9K_PCI_D3_L1_WAR 0x0040
965 #define ATH9K_PCI_AR9565_1ANT 0x0080
966 #define ATH9K_PCI_AR9565_2ANT 0x0100
967 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
968 #define ATH9K_PCI_KILLER 0x0400
969 #define ATH9K_PCI_LED_ACT_HI 0x0800
972 * Default cache line size, in bytes.
973 * Used when PCI device not fully initialized by bootrom/BIOS
975 #define DEFAULT_CACHELINE 32
976 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
977 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
978 #define MAX_GTT_CNT 5
980 /* Powersave flags */
981 #define PS_WAIT_FOR_BEACON BIT(0)
982 #define PS_WAIT_FOR_CAB BIT(1)
983 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
984 #define PS_WAIT_FOR_TX_ACK BIT(3)
985 #define PS_BEACON_SYNC BIT(4)
986 #define PS_WAIT_FOR_ANI BIT(5)
988 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
990 #define AIRTIME_USE_TX BIT(0)
991 #define AIRTIME_USE_RX BIT(1)
992 #define AIRTIME_USE_NEW_QUEUES BIT(2)
993 #define AIRTIME_ACTIVE(flags) (!!(flags & (AIRTIME_USE_TX|AIRTIME_USE_RX)))
996 struct ieee80211_hw *hw;
999 struct survey_info *cur_survey;
1000 struct survey_info survey[ATH9K_NUM_CHANNELS];
1002 spinlock_t intr_lock;
1003 struct tasklet_struct intr_tq;
1004 struct tasklet_struct bcon_tasklet;
1005 struct ath_hw *sc_ah;
1008 spinlock_t sc_serial_rw;
1009 spinlock_t sc_pm_lock;
1010 spinlock_t sc_pcu_lock;
1012 struct work_struct paprd_work;
1013 struct work_struct hw_reset_work;
1014 struct completion paprd_complete;
1015 wait_queue_head_t tx_wait;
1017 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
1018 struct work_struct chanctx_work;
1019 struct ath_gen_timer *p2p_ps_timer;
1020 struct ath_vif *p2p_ps_vif;
1021 struct ath_chanctx_sched sched;
1022 struct ath_offchannel offchannel;
1023 struct ath_chanctx *next_chan;
1024 struct completion go_beacon;
1025 struct timespec64 last_event_time;
1028 unsigned long driver_data;
1032 u16 ps_flags; /* PS_* */
1036 unsigned long ps_usecount;
1038 u16 airtime_flags; /* AIRTIME_* */
1042 struct ath_beacon beacon;
1044 struct cfg80211_chan_def cur_chandef;
1045 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1046 struct ath_chanctx *cur_chan;
1047 spinlock_t chan_lock;
1049 #ifdef CONFIG_MAC80211_LEDS
1050 bool led_registered;
1052 struct led_classdev led_cdev;
1055 #ifdef CONFIG_ATH9K_DEBUGFS
1056 struct ath9k_debug debug;
1058 struct delayed_work hw_check_work;
1059 struct delayed_work hw_pll_work;
1060 struct timer_list sleep_timer;
1062 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1063 struct ath_btcoex btcoex;
1064 struct ath_mci_coex mci_coex;
1065 struct work_struct mci_work;
1068 struct ath_descdma txsdma;
1070 struct ath_ant_comb ant_comb;
1072 struct dfs_pattern_detector *dfs_detector;
1073 u64 dfs_prev_pulse_ts;
1076 struct ath_spec_scan_priv spec_priv;
1078 struct ieee80211_vif *tx99_vif;
1079 struct sk_buff *tx99_skb;
1083 #ifdef CONFIG_ATH9K_WOW
1084 u32 wow_intr_before_sleep;
1088 #ifdef CONFIG_ATH9K_HWRNG
1090 struct task_struct *rng_task;
1098 #ifdef CONFIG_ATH9K_TX99
1099 void ath9k_tx99_init_debug(struct ath_softc *sc);
1100 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1101 struct ath_tx_control *txctl);
1103 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1106 static inline int ath9k_tx99_send(struct ath_softc *sc,
1107 struct sk_buff *skb,
1108 struct ath_tx_control *txctl)
1112 #endif /* CONFIG_ATH9K_TX99 */
1114 /***************************/
1115 /* Random Number Generator */
1116 /***************************/
1117 #ifdef CONFIG_ATH9K_HWRNG
1118 void ath9k_rng_start(struct ath_softc *sc);
1119 void ath9k_rng_stop(struct ath_softc *sc);
1121 static inline void ath9k_rng_start(struct ath_softc *sc)
1125 static inline void ath9k_rng_stop(struct ath_softc *sc)
1130 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1132 common->bus_ops->read_cachesize(common, csz);
1135 void ath9k_tasklet(unsigned long data);
1136 int ath_cabq_update(struct ath_softc *);
1137 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1138 irqreturn_t ath_isr(int irq, void *dev);
1139 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1140 void ath_cancel_work(struct ath_softc *sc);
1141 void ath_restart_work(struct ath_softc *sc);
1142 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1143 const struct ath_bus_ops *bus_ops);
1144 void ath9k_deinit_device(struct ath_softc *sc);
1145 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1146 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1147 void ath_start_rfkill_poll(struct ath_softc *sc);
1148 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1149 void ath9k_ps_wakeup(struct ath_softc *sc);
1150 void ath9k_ps_restore(struct ath_softc *sc);
1152 #ifdef CONFIG_ATH9K_PCI
1153 int ath_pci_init(void);
1154 void ath_pci_exit(void);
1156 static inline int ath_pci_init(void) { return 0; };
1157 static inline void ath_pci_exit(void) {};
1160 #ifdef CONFIG_ATH9K_AHB
1161 int ath_ahb_init(void);
1162 void ath_ahb_exit(void);
1164 static inline int ath_ahb_init(void) { return 0; };
1165 static inline void ath_ahb_exit(void) {};
1168 #endif /* ATH9K_H */