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_TX_COMPLETE_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 {
185 enum ath9k_key_type keytype:2;
189 struct list_head list;
190 struct sk_buff *bf_mpdu;
193 dma_addr_t bf_buf_addr;
197 * enum buffer_type - Buffer type flags
199 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
200 * @BUF_AGGR: Indicates whether the buffer can be aggregated
201 * (used in aggregation scheduling)
208 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
209 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
211 struct ath_buf_state {
217 unsigned long bfs_paprd_timestamp;
221 struct list_head list;
222 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
224 struct ath_buf *bf_next; /* next subframe in the aggregate */
225 struct sk_buff *bf_mpdu; /* enclosing frame structure */
226 void *bf_desc; /* virtual addr of desc */
227 dma_addr_t bf_daddr; /* physical addr of desc */
228 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
229 struct ieee80211_tx_rate rates[4];
230 struct ath_buf_state bf_state;
234 struct list_head list;
235 struct sk_buff_head retry_q;
238 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
243 int baw_head; /* first un-acked tx buffer */
244 int baw_tail; /* next unused tx buffer slot */
248 bool clear_ps_filter;
252 void __ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
253 void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
256 struct ath_softc *sc;
257 struct ieee80211_sta *sta; /* station struct we're part of */
258 struct ieee80211_vif *vif; /* interface with which we're associated */
266 s64 airtime_deficit[IEEE80211_NUM_ACS];
267 u32 airtime_rx_start;
269 #ifdef CONFIG_ATH9K_STATION_STATISTICS
270 struct ath_rx_rate_stats rx_rate_stats;
271 struct ath_airtime_stats airtime_stats;
276 struct list_head list;
279 struct ath_tx_control {
282 struct ieee80211_sta *sta;
288 * @txq_map: Index is mac80211 queue number. This is
289 * not necessarily the same as the hardware queue number
294 spinlock_t txbuflock;
295 struct list_head txbuf;
296 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
297 struct ath_descdma txdma;
298 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
299 struct ath_txq *uapsdq;
300 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
304 struct sk_buff_head rx_fifo;
314 struct list_head rxbuf;
315 struct ath_descdma rxdma;
316 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
318 struct ath_rxbuf *buf_hold;
319 struct sk_buff *frag;
324 /*******************/
325 /* Channel Context */
326 /*******************/
329 struct list_head acq_new;
330 struct list_head acq_old;
335 struct cfg80211_chan_def chandef;
336 struct list_head vifs;
337 struct ath_acq acq[IEEE80211_NUM_ACS];
340 /* do not dereference, use for comparison only */
341 struct ieee80211_vif *primary_sta;
343 struct ath_beacon_config beacon;
344 struct ath9k_hw_cal_data caldata;
345 struct timespec tsf_ts;
356 bool switch_after_beacon;
359 short nvifs_assigned;
360 unsigned int rxfilter;
363 enum ath_chanctx_event {
364 ATH_CHANCTX_EVENT_BEACON_PREPARE,
365 ATH_CHANCTX_EVENT_BEACON_SENT,
366 ATH_CHANCTX_EVENT_TSF_TIMER,
367 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
368 ATH_CHANCTX_EVENT_AUTHORIZED,
369 ATH_CHANCTX_EVENT_SWITCH,
370 ATH_CHANCTX_EVENT_ASSIGN,
371 ATH_CHANCTX_EVENT_UNASSIGN,
372 ATH_CHANCTX_EVENT_CHANGE,
373 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
376 enum ath_chanctx_state {
377 ATH_CHANCTX_STATE_IDLE,
378 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
379 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
380 ATH_CHANCTX_STATE_SWITCH,
381 ATH_CHANCTX_STATE_FORCE_ACTIVE,
384 struct ath_chanctx_sched {
387 bool offchannel_pending;
389 bool force_noa_update;
392 enum ath_chanctx_state state;
396 u32 switch_start_time;
397 unsigned int offchannel_duration;
398 unsigned int channel_switch_time;
400 /* backup, in case the hardware timer fails */
401 struct timer_list timer;
404 enum ath_offchannel_state {
406 ATH_OFFCHANNEL_PROBE_SEND,
407 ATH_OFFCHANNEL_PROBE_WAIT,
408 ATH_OFFCHANNEL_SUSPEND,
409 ATH_OFFCHANNEL_ROC_START,
410 ATH_OFFCHANNEL_ROC_WAIT,
411 ATH_OFFCHANNEL_ROC_DONE,
414 enum ath_roc_complete_reason {
415 ATH_ROC_COMPLETE_EXPIRE,
416 ATH_ROC_COMPLETE_ABORT,
417 ATH_ROC_COMPLETE_CANCEL,
420 struct ath_offchannel {
421 struct ath_chanctx chan;
422 struct timer_list timer;
423 struct cfg80211_scan_request *scan_req;
424 struct ieee80211_vif *scan_vif;
426 enum ath_offchannel_state state;
427 struct ieee80211_channel *roc_chan;
428 struct ieee80211_vif *roc_vif;
433 static inline struct ath_atx_tid *
434 ath_node_to_tid(struct ath_node *an, u8 tidno)
436 struct ieee80211_sta *sta = an->sta;
437 struct ieee80211_vif *vif = an->vif;
438 struct ieee80211_txq *txq;
442 txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
446 return (struct ath_atx_tid *) txq->drv_priv;
449 #define case_rtn_string(val) case val: return #val
451 #define ath_for_each_chanctx(_sc, _ctx) \
452 for (ctx = &sc->chanctx[0]; \
453 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
456 void ath_chanctx_init(struct ath_softc *sc);
457 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
458 struct cfg80211_chan_def *chandef);
460 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
462 static inline struct ath_chanctx *
463 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
465 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
469 bool ath9k_is_chanctx_enabled(void);
470 void ath9k_fill_chanctx_ops(void);
471 void ath9k_init_channel_context(struct ath_softc *sc);
472 void ath9k_offchannel_init(struct ath_softc *sc);
473 void ath9k_deinit_channel_context(struct ath_softc *sc);
474 int ath9k_init_p2p(struct ath_softc *sc);
475 void ath9k_deinit_p2p(struct ath_softc *sc);
476 void ath9k_p2p_remove_vif(struct ath_softc *sc,
477 struct ieee80211_vif *vif);
478 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
479 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
480 struct ieee80211_vif *vif);
481 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
482 struct sk_buff *skb);
483 void ath9k_p2p_ps_timer(void *priv);
484 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
485 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
486 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
488 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
489 enum ath_chanctx_event ev);
490 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
491 enum ath_chanctx_event ev);
492 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
493 enum ath_chanctx_event ev);
494 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
495 void ath_offchannel_next(struct ath_softc *sc);
496 void ath_scan_complete(struct ath_softc *sc, bool abort);
497 void ath_roc_complete(struct ath_softc *sc,
498 enum ath_roc_complete_reason reason);
499 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
503 static inline bool ath9k_is_chanctx_enabled(void)
507 static inline void ath9k_fill_chanctx_ops(void)
510 static inline void ath9k_init_channel_context(struct ath_softc *sc)
513 static inline void ath9k_offchannel_init(struct ath_softc *sc)
516 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
519 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
520 enum ath_chanctx_event ev)
523 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
524 enum ath_chanctx_event ev)
527 static inline void ath_chanctx_event(struct ath_softc *sc,
528 struct ieee80211_vif *vif,
529 enum ath_chanctx_event ev)
532 static inline int ath9k_init_p2p(struct ath_softc *sc)
536 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
539 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
540 struct ieee80211_vif *vif)
543 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
546 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
547 struct ieee80211_vif *vif)
550 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
554 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
557 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
558 struct ath_chanctx *ctx)
561 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
562 struct ath_chanctx *ctx)
565 static inline void ath_chanctx_check_active(struct ath_softc *sc,
566 struct ath_chanctx *ctx)
570 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
572 void ath_startrecv(struct ath_softc *sc);
573 bool ath_stoprecv(struct ath_softc *sc);
574 u32 ath_calcrxfilter(struct ath_softc *sc);
575 int ath_rx_init(struct ath_softc *sc, int nbufs);
576 void ath_rx_cleanup(struct ath_softc *sc);
577 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
578 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
579 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
580 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
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,
604 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
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,
614 void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
620 #define P2P_DEFAULT_CTWIN 10
623 struct list_head list;
628 u8 bssid[ETH_ALEN] __aligned(2);
632 struct ieee80211_vif *vif;
633 struct ath_node mcast_node;
635 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
636 struct ath_buf *av_bcbuf;
637 struct ath_chanctx *chanctx;
640 struct ieee80211_noa_data noa;
644 u32 offchannel_start;
645 u32 offchannel_duration;
647 /* These are used for both periodic and one-shot */
654 struct ath9k_vif_iter_data {
655 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
656 u8 mask[ETH_ALEN]; /* bssid mask */
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;
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);
679 /*******************/
680 /* Beacon Handling */
681 /*******************/
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.
688 #define BSTUCK_THRESH 9
690 #define ATH_DEFAULT_BINTVAL 100 /* TU */
691 #define ATH_DEFAULT_BMISS_LIMIT 10
693 #define TSF_TO_TU(_h,_l) \
694 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
698 OK, /* no change needed */
699 UPDATE, /* update pending */
700 COMMIT /* beacon sent, commit change */
701 } updateslot; /* slot time update fsm */
705 struct ieee80211_vif *bslot[ATH_BCBUF];
708 struct ath_descdma bdma;
709 struct ath_txq *cabq;
710 struct list_head bbuf;
716 void ath9k_beacon_tasklet(unsigned long data);
717 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
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);
726 /*******************/
727 /* Link Monitoring */
728 /*******************/
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
741 void ath_tx_complete_poll_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(unsigned long data);
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(unsigned long data);
754 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
755 bool sw_pending, bool timeout_override);
761 #define ATH_DUMP_BTCOEX(_s, _val) \
763 len += scnprintf(buf + len, size - len, \
764 "%20s : %10d\n", _s, (_val)); \
768 BT_OP_PRIORITY_DETECTED,
773 spinlock_t btcoex_lock;
774 struct timer_list period_timer; /* Timer for BT period */
775 struct timer_list no_stomp_timer;
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 */
786 struct ath_mci_profile mci;
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);
802 static inline int ath9k_init_btcoex(struct ath_softc *sc)
806 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
809 static inline void ath9k_start_btcoex(struct ath_softc *sc)
812 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
815 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
819 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
820 u32 max_4ms_framelen)
824 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
827 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
831 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
833 /********************/
835 /********************/
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
843 #ifdef CONFIG_MAC80211_LEDS
844 void ath_init_leds(struct ath_softc *sc);
845 void ath_deinit_leds(struct ath_softc *sc);
847 static inline void ath_init_leds(struct ath_softc *sc)
851 static inline void ath_deinit_leds(struct ath_softc *sc)
856 /************************/
857 /* Wake on Wireless LAN */
858 /************************/
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);
868 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
871 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
874 static inline int ath9k_suspend(struct ieee80211_hw *hw,
875 struct cfg80211_wowlan *wowlan)
879 static inline int ath9k_resume(struct ieee80211_hw *hw)
883 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
886 #endif /* CONFIG_ATH9K_WOW */
888 /*******************************/
889 /* Antenna diversity/combining */
890 /*******************************/
892 #define ATH_ANT_RX_CURRENT_SHIFT 4
893 #define ATH_ANT_RX_MAIN_SHIFT 2
894 #define ATH_ANT_RX_MASK 0x3
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
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
910 struct ath_ant_comb {
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;
935 unsigned long scan_start_time;
938 * Card-specific config values.
944 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
946 /********************/
947 /* Main driver core */
948 /********************/
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
964 * Default cache line size, in bytes.
965 * Used when PCI device not fully initialized by bootrom/BIOS
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
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)
980 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
982 #define AIRTIME_USE_TX BIT(0)
983 #define AIRTIME_USE_RX BIT(1)
984 #define AIRTIME_USE_NEW_QUEUES BIT(2)
985 #define AIRTIME_ACTIVE(flags) (!!(flags & (AIRTIME_USE_TX|AIRTIME_USE_RX)))
988 struct ieee80211_hw *hw;
991 struct survey_info *cur_survey;
992 struct survey_info survey[ATH9K_NUM_CHANNELS];
994 struct tasklet_struct intr_tq;
995 struct tasklet_struct bcon_tasklet;
996 struct ath_hw *sc_ah;
999 spinlock_t sc_serial_rw;
1000 spinlock_t sc_pm_lock;
1001 spinlock_t sc_pcu_lock;
1003 struct work_struct paprd_work;
1004 struct work_struct hw_reset_work;
1005 struct completion paprd_complete;
1006 wait_queue_head_t tx_wait;
1008 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
1009 struct work_struct chanctx_work;
1010 struct ath_gen_timer *p2p_ps_timer;
1011 struct ath_vif *p2p_ps_vif;
1012 struct ath_chanctx_sched sched;
1013 struct ath_offchannel offchannel;
1014 struct ath_chanctx *next_chan;
1015 struct completion go_beacon;
1016 struct timespec last_event_time;
1019 unsigned long driver_data;
1023 u16 ps_flags; /* PS_* */
1027 unsigned long ps_usecount;
1029 u16 airtime_flags; /* AIRTIME_* */
1033 struct ath_beacon beacon;
1035 struct cfg80211_chan_def cur_chandef;
1036 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1037 struct ath_chanctx *cur_chan;
1038 spinlock_t chan_lock;
1040 #ifdef CONFIG_MAC80211_LEDS
1041 bool led_registered;
1043 struct led_classdev led_cdev;
1046 #ifdef CONFIG_ATH9K_DEBUGFS
1047 struct ath9k_debug debug;
1049 struct delayed_work tx_complete_work;
1050 struct delayed_work hw_pll_work;
1051 struct timer_list sleep_timer;
1053 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1054 struct ath_btcoex btcoex;
1055 struct ath_mci_coex mci_coex;
1056 struct work_struct mci_work;
1059 struct ath_descdma txsdma;
1061 struct ath_ant_comb ant_comb;
1063 struct dfs_pattern_detector *dfs_detector;
1064 u64 dfs_prev_pulse_ts;
1067 struct ath_spec_scan_priv spec_priv;
1069 struct ieee80211_vif *tx99_vif;
1070 struct sk_buff *tx99_skb;
1074 #ifdef CONFIG_ATH9K_WOW
1075 u32 wow_intr_before_sleep;
1079 #ifdef CONFIG_ATH9K_HWRNG
1081 struct task_struct *rng_task;
1089 #ifdef CONFIG_ATH9K_TX99
1090 void ath9k_tx99_init_debug(struct ath_softc *sc);
1091 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1092 struct ath_tx_control *txctl);
1094 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1097 static inline int ath9k_tx99_send(struct ath_softc *sc,
1098 struct sk_buff *skb,
1099 struct ath_tx_control *txctl)
1103 #endif /* CONFIG_ATH9K_TX99 */
1105 /***************************/
1106 /* Random Number Generator */
1107 /***************************/
1108 #ifdef CONFIG_ATH9K_HWRNG
1109 void ath9k_rng_start(struct ath_softc *sc);
1110 void ath9k_rng_stop(struct ath_softc *sc);
1112 static inline void ath9k_rng_start(struct ath_softc *sc)
1116 static inline void ath9k_rng_stop(struct ath_softc *sc)
1121 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1123 common->bus_ops->read_cachesize(common, csz);
1126 void ath9k_tasklet(unsigned long data);
1127 int ath_cabq_update(struct ath_softc *);
1128 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1129 irqreturn_t ath_isr(int irq, void *dev);
1130 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1131 void ath_cancel_work(struct ath_softc *sc);
1132 void ath_restart_work(struct ath_softc *sc);
1133 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1134 const struct ath_bus_ops *bus_ops);
1135 void ath9k_deinit_device(struct ath_softc *sc);
1136 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1137 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1138 void ath_start_rfkill_poll(struct ath_softc *sc);
1139 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1140 void ath9k_ps_wakeup(struct ath_softc *sc);
1141 void ath9k_ps_restore(struct ath_softc *sc);
1143 #ifdef CONFIG_ATH9K_PCI
1144 int ath_pci_init(void);
1145 void ath_pci_exit(void);
1147 static inline int ath_pci_init(void) { return 0; };
1148 static inline void ath_pci_exit(void) {};
1151 #ifdef CONFIG_ATH9K_AHB
1152 int ath_ahb_init(void);
1153 void ath_ahb_exit(void);
1155 static inline int ath_ahb_init(void) { return 0; };
1156 static inline void ath_ahb_exit(void) {};
1159 #endif /* ATH9K_H */