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 /* Stop tx traffic 1ms before the GO goes away */
116 #define ATH_P2P_PS_STOP_TIME 1000
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))
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))))
133 /* return block-ack bitmap index given sequence and starting sequence */
134 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
136 /* return the seqno for _start + _offset */
137 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
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))
144 #define BAW_WITHIN(_start, _bawsz, _seqno) \
145 ((((_seqno) - (_start)) & 4095) < (_bawsz))
147 #define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
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))
159 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
160 u32 axq_qnum; /* ath9k hardware queue number */
162 struct list_head axq_q;
166 bool axq_tx_inprogress;
167 struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
171 struct sk_buff_head complete_q;
174 struct ath_frame_info {
183 enum ath9k_key_type keytype:2;
187 struct list_head list;
188 struct sk_buff *bf_mpdu;
191 dma_addr_t bf_buf_addr;
195 * enum buffer_type - Buffer type flags
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)
206 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
207 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
209 struct ath_buf_state {
215 unsigned long bfs_paprd_timestamp;
219 struct list_head list;
220 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
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;
232 struct list_head list;
233 struct sk_buff_head retry_q;
236 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
241 int baw_head; /* first un-acked tx buffer */
242 int baw_tail; /* next unused tx buffer slot */
246 bool clear_ps_filter;
251 struct ath_softc *sc;
252 struct ieee80211_sta *sta; /* station struct we're part of */
253 struct ieee80211_vif *vif; /* interface with which we're associated */
262 #ifdef CONFIG_ATH9K_STATION_STATISTICS
263 struct ath_rx_rate_stats rx_rate_stats;
268 struct list_head list;
271 struct ath_tx_control {
274 struct ieee80211_sta *sta;
280 * @txq_map: Index is mac80211 queue number. This is
281 * not necessarily the same as the hardware queue number
286 spinlock_t txbuflock;
287 struct list_head txbuf;
288 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
289 struct ath_descdma txdma;
290 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
291 struct ath_txq *uapsdq;
292 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
296 struct sk_buff_head rx_fifo;
306 struct list_head rxbuf;
307 struct ath_descdma rxdma;
308 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
310 struct ath_rxbuf *buf_hold;
311 struct sk_buff *frag;
316 /*******************/
317 /* Channel Context */
318 /*******************/
321 struct cfg80211_chan_def chandef;
322 struct list_head vifs;
323 struct list_head acq[IEEE80211_NUM_ACS];
326 /* do not dereference, use for comparison only */
327 struct ieee80211_vif *primary_sta;
329 struct ath_beacon_config beacon;
330 struct ath9k_hw_cal_data caldata;
331 struct timespec tsf_ts;
342 bool switch_after_beacon;
345 short nvifs_assigned;
346 unsigned int rxfilter;
349 enum ath_chanctx_event {
350 ATH_CHANCTX_EVENT_BEACON_PREPARE,
351 ATH_CHANCTX_EVENT_BEACON_SENT,
352 ATH_CHANCTX_EVENT_TSF_TIMER,
353 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
354 ATH_CHANCTX_EVENT_AUTHORIZED,
355 ATH_CHANCTX_EVENT_SWITCH,
356 ATH_CHANCTX_EVENT_ASSIGN,
357 ATH_CHANCTX_EVENT_UNASSIGN,
358 ATH_CHANCTX_EVENT_CHANGE,
359 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
362 enum ath_chanctx_state {
363 ATH_CHANCTX_STATE_IDLE,
364 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
365 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
366 ATH_CHANCTX_STATE_SWITCH,
367 ATH_CHANCTX_STATE_FORCE_ACTIVE,
370 struct ath_chanctx_sched {
373 bool offchannel_pending;
375 bool force_noa_update;
378 enum ath_chanctx_state state;
382 u32 switch_start_time;
383 unsigned int offchannel_duration;
384 unsigned int channel_switch_time;
386 /* backup, in case the hardware timer fails */
387 struct timer_list timer;
390 enum ath_offchannel_state {
392 ATH_OFFCHANNEL_PROBE_SEND,
393 ATH_OFFCHANNEL_PROBE_WAIT,
394 ATH_OFFCHANNEL_SUSPEND,
395 ATH_OFFCHANNEL_ROC_START,
396 ATH_OFFCHANNEL_ROC_WAIT,
397 ATH_OFFCHANNEL_ROC_DONE,
400 enum ath_roc_complete_reason {
401 ATH_ROC_COMPLETE_EXPIRE,
402 ATH_ROC_COMPLETE_ABORT,
403 ATH_ROC_COMPLETE_CANCEL,
406 struct ath_offchannel {
407 struct ath_chanctx chan;
408 struct timer_list timer;
409 struct cfg80211_scan_request *scan_req;
410 struct ieee80211_vif *scan_vif;
412 enum ath_offchannel_state state;
413 struct ieee80211_channel *roc_chan;
414 struct ieee80211_vif *roc_vif;
419 static inline struct ath_atx_tid *
420 ath_node_to_tid(struct ath_node *an, u8 tidno)
422 struct ieee80211_sta *sta = an->sta;
423 struct ieee80211_vif *vif = an->vif;
424 struct ieee80211_txq *txq;
428 txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
432 return (struct ath_atx_tid *) txq->drv_priv;
435 #define case_rtn_string(val) case val: return #val
437 #define ath_for_each_chanctx(_sc, _ctx) \
438 for (ctx = &sc->chanctx[0]; \
439 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
442 void ath_chanctx_init(struct ath_softc *sc);
443 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
444 struct cfg80211_chan_def *chandef);
446 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
448 static inline struct ath_chanctx *
449 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
451 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
455 bool ath9k_is_chanctx_enabled(void);
456 void ath9k_fill_chanctx_ops(void);
457 void ath9k_init_channel_context(struct ath_softc *sc);
458 void ath9k_offchannel_init(struct ath_softc *sc);
459 void ath9k_deinit_channel_context(struct ath_softc *sc);
460 int ath9k_init_p2p(struct ath_softc *sc);
461 void ath9k_deinit_p2p(struct ath_softc *sc);
462 void ath9k_p2p_remove_vif(struct ath_softc *sc,
463 struct ieee80211_vif *vif);
464 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
465 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
466 struct ieee80211_vif *vif);
467 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
468 struct sk_buff *skb);
469 void ath9k_p2p_ps_timer(void *priv);
470 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
471 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
472 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
474 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
475 enum ath_chanctx_event ev);
476 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
477 enum ath_chanctx_event ev);
478 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
479 enum ath_chanctx_event ev);
480 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
481 void ath_offchannel_next(struct ath_softc *sc);
482 void ath_scan_complete(struct ath_softc *sc, bool abort);
483 void ath_roc_complete(struct ath_softc *sc,
484 enum ath_roc_complete_reason reason);
485 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
489 static inline bool ath9k_is_chanctx_enabled(void)
493 static inline void ath9k_fill_chanctx_ops(void)
496 static inline void ath9k_init_channel_context(struct ath_softc *sc)
499 static inline void ath9k_offchannel_init(struct ath_softc *sc)
502 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
505 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
506 enum ath_chanctx_event ev)
509 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
510 enum ath_chanctx_event ev)
513 static inline void ath_chanctx_event(struct ath_softc *sc,
514 struct ieee80211_vif *vif,
515 enum ath_chanctx_event ev)
518 static inline int ath9k_init_p2p(struct ath_softc *sc)
522 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
525 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
526 struct ieee80211_vif *vif)
529 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
532 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
533 struct ieee80211_vif *vif)
536 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
540 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
543 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
544 struct ath_chanctx *ctx)
547 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
548 struct ath_chanctx *ctx)
551 static inline void ath_chanctx_check_active(struct ath_softc *sc,
552 struct ath_chanctx *ctx)
556 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
558 void ath_startrecv(struct ath_softc *sc);
559 bool ath_stoprecv(struct ath_softc *sc);
560 u32 ath_calcrxfilter(struct ath_softc *sc);
561 int ath_rx_init(struct ath_softc *sc, int nbufs);
562 void ath_rx_cleanup(struct ath_softc *sc);
563 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
564 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
565 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
566 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
567 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
568 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
569 bool ath_drain_all_txq(struct ath_softc *sc);
570 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
571 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
572 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
573 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
574 void ath_txq_schedule_all(struct ath_softc *sc);
575 int ath_tx_init(struct ath_softc *sc, int nbufs);
576 int ath_txq_update(struct ath_softc *sc, int qnum,
577 struct ath9k_tx_queue_info *q);
578 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
579 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
580 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
581 struct ath_tx_control *txctl);
582 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
583 struct sk_buff *skb);
584 void ath_tx_tasklet(struct ath_softc *sc);
585 void ath_tx_edma_tasklet(struct ath_softc *sc);
586 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
588 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
590 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
591 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
592 struct ath_node *an);
593 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
594 struct ieee80211_sta *sta,
595 u16 tids, int nframes,
596 enum ieee80211_frame_release_type reason,
598 void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
604 #define P2P_DEFAULT_CTWIN 10
607 struct list_head list;
612 u8 bssid[ETH_ALEN] __aligned(2);
616 struct ieee80211_vif *vif;
617 struct ath_node mcast_node;
619 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
620 struct ath_buf *av_bcbuf;
621 struct ath_chanctx *chanctx;
624 struct ieee80211_noa_data noa;
628 u32 offchannel_start;
629 u32 offchannel_duration;
631 /* These are used for both periodic and one-shot */
638 struct ath9k_vif_iter_data {
639 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
640 u8 mask[ETH_ALEN]; /* bssid mask */
645 int naps; /* number of AP vifs */
646 int nmeshes; /* number of mesh vifs */
647 int nstations; /* number of station vifs */
648 int nwds; /* number of WDS vifs */
649 int nadhocs; /* number of adhoc vifs */
650 int nocbs; /* number of OCB vifs */
651 int nbcnvifs; /* number of beaconing vifs */
652 struct ieee80211_vif *primary_beacon_vif;
653 struct ieee80211_vif *primary_sta;
656 void ath9k_calculate_iter_data(struct ath_softc *sc,
657 struct ath_chanctx *ctx,
658 struct ath9k_vif_iter_data *iter_data);
659 void ath9k_calculate_summary_state(struct ath_softc *sc,
660 struct ath_chanctx *ctx);
661 void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
663 /*******************/
664 /* Beacon Handling */
665 /*******************/
668 * Regardless of the number of beacons we stagger, (i.e. regardless of the
669 * number of BSSIDs) if a given beacon does not go out even after waiting this
670 * number of beacon intervals, the game's up.
672 #define BSTUCK_THRESH 9
674 #define ATH_DEFAULT_BINTVAL 100 /* TU */
675 #define ATH_DEFAULT_BMISS_LIMIT 10
677 #define TSF_TO_TU(_h,_l) \
678 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
682 OK, /* no change needed */
683 UPDATE, /* update pending */
684 COMMIT /* beacon sent, commit change */
685 } updateslot; /* slot time update fsm */
689 struct ieee80211_vif *bslot[ATH_BCBUF];
692 struct ath_descdma bdma;
693 struct ath_txq *cabq;
694 struct list_head bbuf;
700 void ath9k_beacon_tasklet(unsigned long data);
701 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
703 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
704 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
705 void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
706 void ath9k_set_beacon(struct ath_softc *sc);
707 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
708 void ath9k_csa_update(struct ath_softc *sc);
710 /*******************/
711 /* Link Monitoring */
712 /*******************/
714 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
715 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
716 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
717 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
718 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
719 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
720 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
721 #define ATH_ANI_MAX_SKIP_COUNT 10
722 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
723 #define ATH_PLL_WORK_INTERVAL 100
725 void ath_tx_complete_poll_work(struct work_struct *work);
726 void ath_reset_work(struct work_struct *work);
727 bool ath_hw_check(struct ath_softc *sc);
728 void ath_hw_pll_work(struct work_struct *work);
729 void ath_paprd_calibrate(struct work_struct *work);
730 void ath_ani_calibrate(unsigned long data);
731 void ath_start_ani(struct ath_softc *sc);
732 void ath_stop_ani(struct ath_softc *sc);
733 void ath_check_ani(struct ath_softc *sc);
734 int ath_update_survey_stats(struct ath_softc *sc);
735 void ath_update_survey_nf(struct ath_softc *sc, int channel);
736 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
737 void ath_ps_full_sleep(unsigned long data);
738 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
739 bool sw_pending, bool timeout_override);
745 #define ATH_DUMP_BTCOEX(_s, _val) \
747 len += scnprintf(buf + len, size - len, \
748 "%20s : %10d\n", _s, (_val)); \
752 BT_OP_PRIORITY_DETECTED,
757 spinlock_t btcoex_lock;
758 struct timer_list period_timer; /* Timer for BT period */
759 struct timer_list no_stomp_timer;
761 unsigned long bt_priority_time;
762 unsigned long op_flags;
763 int bt_stomp_type; /* Types of BT stomping */
764 u32 btcoex_no_stomp; /* in msec */
765 u32 btcoex_period; /* in msec */
766 u32 btscan_no_stomp; /* in msec */
770 struct ath_mci_profile mci;
774 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
775 int ath9k_init_btcoex(struct ath_softc *sc);
776 void ath9k_deinit_btcoex(struct ath_softc *sc);
777 void ath9k_start_btcoex(struct ath_softc *sc);
778 void ath9k_stop_btcoex(struct ath_softc *sc);
779 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
780 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
781 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
782 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
783 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
784 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
786 static inline int ath9k_init_btcoex(struct ath_softc *sc)
790 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
793 static inline void ath9k_start_btcoex(struct ath_softc *sc)
796 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
799 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
803 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
804 u32 max_4ms_framelen)
808 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
811 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
815 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
817 /********************/
819 /********************/
821 #define ATH_LED_PIN_DEF 1
822 #define ATH_LED_PIN_9287 8
823 #define ATH_LED_PIN_9300 10
824 #define ATH_LED_PIN_9485 6
825 #define ATH_LED_PIN_9462 4
827 #ifdef CONFIG_MAC80211_LEDS
828 void ath_init_leds(struct ath_softc *sc);
829 void ath_deinit_leds(struct ath_softc *sc);
831 static inline void ath_init_leds(struct ath_softc *sc)
835 static inline void ath_deinit_leds(struct ath_softc *sc)
840 /************************/
841 /* Wake on Wireless LAN */
842 /************************/
844 #ifdef CONFIG_ATH9K_WOW
845 void ath9k_init_wow(struct ieee80211_hw *hw);
846 void ath9k_deinit_wow(struct ieee80211_hw *hw);
847 int ath9k_suspend(struct ieee80211_hw *hw,
848 struct cfg80211_wowlan *wowlan);
849 int ath9k_resume(struct ieee80211_hw *hw);
850 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
852 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
855 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
858 static inline int ath9k_suspend(struct ieee80211_hw *hw,
859 struct cfg80211_wowlan *wowlan)
863 static inline int ath9k_resume(struct ieee80211_hw *hw)
867 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
870 #endif /* CONFIG_ATH9K_WOW */
872 /*******************************/
873 /* Antenna diversity/combining */
874 /*******************************/
876 #define ATH_ANT_RX_CURRENT_SHIFT 4
877 #define ATH_ANT_RX_MAIN_SHIFT 2
878 #define ATH_ANT_RX_MASK 0x3
880 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
881 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
882 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
883 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
884 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
885 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
886 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
887 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
888 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
890 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
891 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
892 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
894 struct ath_ant_comb {
914 enum ath9k_ant_div_comb_lna_conf main_conf;
915 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
916 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
919 unsigned long scan_start_time;
922 * Card-specific config values.
928 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
930 /********************/
931 /* Main driver core */
932 /********************/
934 #define ATH9K_PCI_CUS198 0x0001
935 #define ATH9K_PCI_CUS230 0x0002
936 #define ATH9K_PCI_CUS217 0x0004
937 #define ATH9K_PCI_CUS252 0x0008
938 #define ATH9K_PCI_WOW 0x0010
939 #define ATH9K_PCI_BT_ANT_DIV 0x0020
940 #define ATH9K_PCI_D3_L1_WAR 0x0040
941 #define ATH9K_PCI_AR9565_1ANT 0x0080
942 #define ATH9K_PCI_AR9565_2ANT 0x0100
943 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
944 #define ATH9K_PCI_KILLER 0x0400
945 #define ATH9K_PCI_LED_ACT_HI 0x0800
948 * Default cache line size, in bytes.
949 * Used when PCI device not fully initialized by bootrom/BIOS
951 #define DEFAULT_CACHELINE 32
952 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
953 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
954 #define MAX_GTT_CNT 5
956 /* Powersave flags */
957 #define PS_WAIT_FOR_BEACON BIT(0)
958 #define PS_WAIT_FOR_CAB BIT(1)
959 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
960 #define PS_WAIT_FOR_TX_ACK BIT(3)
961 #define PS_BEACON_SYNC BIT(4)
962 #define PS_WAIT_FOR_ANI BIT(5)
964 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
967 struct ieee80211_hw *hw;
970 struct survey_info *cur_survey;
971 struct survey_info survey[ATH9K_NUM_CHANNELS];
973 struct tasklet_struct intr_tq;
974 struct tasklet_struct bcon_tasklet;
975 struct ath_hw *sc_ah;
978 spinlock_t sc_serial_rw;
979 spinlock_t sc_pm_lock;
980 spinlock_t sc_pcu_lock;
982 struct work_struct paprd_work;
983 struct work_struct hw_reset_work;
984 struct completion paprd_complete;
985 wait_queue_head_t tx_wait;
987 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
988 struct work_struct chanctx_work;
989 struct ath_gen_timer *p2p_ps_timer;
990 struct ath_vif *p2p_ps_vif;
991 struct ath_chanctx_sched sched;
992 struct ath_offchannel offchannel;
993 struct ath_chanctx *next_chan;
994 struct completion go_beacon;
995 struct timespec last_event_time;
998 unsigned long driver_data;
1002 u16 ps_flags; /* PS_* */
1006 unsigned long ps_usecount;
1010 struct ath_beacon beacon;
1012 struct cfg80211_chan_def cur_chandef;
1013 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1014 struct ath_chanctx *cur_chan;
1015 spinlock_t chan_lock;
1017 #ifdef CONFIG_MAC80211_LEDS
1018 bool led_registered;
1020 struct led_classdev led_cdev;
1023 #ifdef CONFIG_ATH9K_DEBUGFS
1024 struct ath9k_debug debug;
1026 struct delayed_work tx_complete_work;
1027 struct delayed_work hw_pll_work;
1028 struct timer_list sleep_timer;
1030 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1031 struct ath_btcoex btcoex;
1032 struct ath_mci_coex mci_coex;
1033 struct work_struct mci_work;
1036 struct ath_descdma txsdma;
1038 struct ath_ant_comb ant_comb;
1040 struct dfs_pattern_detector *dfs_detector;
1041 u64 dfs_prev_pulse_ts;
1044 struct ath_spec_scan_priv spec_priv;
1046 struct ieee80211_vif *tx99_vif;
1047 struct sk_buff *tx99_skb;
1051 #ifdef CONFIG_ATH9K_WOW
1052 u32 wow_intr_before_sleep;
1056 #ifdef CONFIG_ATH9K_HWRNG
1058 struct task_struct *rng_task;
1066 #ifdef CONFIG_ATH9K_TX99
1067 void ath9k_tx99_init_debug(struct ath_softc *sc);
1068 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1069 struct ath_tx_control *txctl);
1071 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1074 static inline int ath9k_tx99_send(struct ath_softc *sc,
1075 struct sk_buff *skb,
1076 struct ath_tx_control *txctl)
1080 #endif /* CONFIG_ATH9K_TX99 */
1082 /***************************/
1083 /* Random Number Generator */
1084 /***************************/
1085 #ifdef CONFIG_ATH9K_HWRNG
1086 void ath9k_rng_start(struct ath_softc *sc);
1087 void ath9k_rng_stop(struct ath_softc *sc);
1089 static inline void ath9k_rng_start(struct ath_softc *sc)
1093 static inline void ath9k_rng_stop(struct ath_softc *sc)
1098 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1100 common->bus_ops->read_cachesize(common, csz);
1103 void ath9k_tasklet(unsigned long data);
1104 int ath_cabq_update(struct ath_softc *);
1105 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1106 irqreturn_t ath_isr(int irq, void *dev);
1107 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1108 void ath_cancel_work(struct ath_softc *sc);
1109 void ath_restart_work(struct ath_softc *sc);
1110 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1111 const struct ath_bus_ops *bus_ops);
1112 void ath9k_deinit_device(struct ath_softc *sc);
1113 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1114 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1115 void ath_start_rfkill_poll(struct ath_softc *sc);
1116 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1117 void ath9k_ps_wakeup(struct ath_softc *sc);
1118 void ath9k_ps_restore(struct ath_softc *sc);
1120 #ifdef CONFIG_ATH9K_PCI
1121 int ath_pci_init(void);
1122 void ath_pci_exit(void);
1124 static inline int ath_pci_init(void) { return 0; };
1125 static inline void ath_pci_exit(void) {};
1128 #ifdef CONFIG_ATH9K_AHB
1129 int ath_ahb_init(void);
1130 void ath_ahb_exit(void);
1132 static inline int ath_ahb_init(void) { return 0; };
1133 static inline void ath_ahb_exit(void) {};
1136 #endif /* ATH9K_H */