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>
36 extern struct ieee80211_ops ath9k_ops;
37 extern int ath9k_modparam_nohwcrypt;
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_MAX_QDEPTH (ATH_TXBUF / 4 - ATH_TXBUF_RESERVE)
95 #define ATH_TXMAXTRY 13
96 #define ATH_MAX_SW_RETRIES 30
98 #define TID_TO_WME_AC(_tid) \
99 ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
100 (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
101 (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
104 #define ATH_AGGR_DELIM_SZ 4
105 #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
106 /* number of delimiters for encryption padding */
107 #define ATH_AGGR_ENCRYPTDELIM 10
108 /* minimum h/w qdepth to be sustained to maximize aggregation */
109 #define ATH_AGGR_MIN_QDEPTH 2
110 /* minimum h/w qdepth for non-aggregated traffic */
111 #define ATH_NON_AGGR_MIN_QDEPTH 8
112 #define ATH_TX_COMPLETE_POLL_INT 1000
113 #define ATH_TXFIFO_DEPTH 8
114 #define ATH_TX_ERROR 0x01
116 /* Stop tx traffic 1ms before the GO goes away */
117 #define ATH_P2P_PS_STOP_TIME 1000
119 #define IEEE80211_SEQ_SEQ_SHIFT 4
120 #define IEEE80211_SEQ_MAX 4096
121 #define IEEE80211_WEP_IVLEN 3
122 #define IEEE80211_WEP_KIDLEN 1
123 #define IEEE80211_WEP_CRCLEN 4
124 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
125 (IEEE80211_WEP_IVLEN + \
126 IEEE80211_WEP_KIDLEN + \
127 IEEE80211_WEP_CRCLEN))
129 /* return whether a bit at index _n in bitmap _bm is set
130 * _sz is the size of the bitmap */
131 #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
132 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
134 /* return block-ack bitmap index given sequence and starting sequence */
135 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
137 /* return the seqno for _start + _offset */
138 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
140 /* returns delimiter padding required given the packet length */
141 #define ATH_AGGR_GET_NDELIM(_len) \
142 (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \
143 DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
145 #define BAW_WITHIN(_start, _bawsz, _seqno) \
146 ((((_seqno) - (_start)) & 4095) < (_bawsz))
148 #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)])
150 #define IS_HT_RATE(rate) (rate & 0x80)
151 #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
152 #define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf))
160 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
161 u32 axq_qnum; /* ath9k hardware queue number */
163 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;
178 struct list_head list;
179 struct list_head tid_q;
180 bool clear_ps_filter;
184 struct ath_frame_info {
188 enum ath9k_key_type keytype;
196 struct list_head list;
197 struct sk_buff *bf_mpdu;
200 dma_addr_t bf_buf_addr;
204 * enum buffer_type - Buffer type flags
206 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
207 * @BUF_AGGR: Indicates whether the buffer can be aggregated
208 * (used in aggregation scheduling)
215 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
216 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
218 struct ath_buf_state {
224 unsigned long bfs_paprd_timestamp;
228 struct list_head list;
229 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
231 struct ath_buf *bf_next; /* next subframe in the aggregate */
232 struct sk_buff *bf_mpdu; /* enclosing frame structure */
233 void *bf_desc; /* virtual addr of desc */
234 dma_addr_t bf_daddr; /* physical addr of desc */
235 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
236 struct ieee80211_tx_rate rates[4];
237 struct ath_buf_state bf_state;
241 struct list_head list;
242 struct sk_buff_head buf_q;
243 struct sk_buff_head retry_q;
245 struct ath_atx_ac *ac;
246 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
251 int baw_head; /* first un-acked tx buffer */
252 int baw_tail; /* next unused tx buffer slot */
260 struct ath_softc *sc;
261 struct ieee80211_sta *sta; /* station struct we're part of */
262 struct ieee80211_vif *vif; /* interface with which we're associated */
263 struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
264 struct ath_atx_ac ac[IEEE80211_NUM_ACS];
273 #ifdef CONFIG_ATH9K_STATION_STATISTICS
274 struct ath_rx_rate_stats rx_rate_stats;
279 struct list_head list;
282 struct ath_tx_control {
285 struct ieee80211_sta *sta;
292 * @txq_map: Index is mac80211 queue number. This is
293 * not necessarily the same as the hardware queue number
298 spinlock_t txbuflock;
299 struct list_head txbuf;
300 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
301 struct ath_descdma txdma;
302 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
303 struct ath_txq *uapsdq;
304 u32 txq_max_pending[IEEE80211_NUM_ACS];
305 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
309 struct sk_buff_head rx_fifo;
319 struct list_head rxbuf;
320 struct ath_descdma rxdma;
321 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
323 struct ath_rxbuf *buf_hold;
324 struct sk_buff *frag;
329 /*******************/
330 /* Channel Context */
331 /*******************/
334 struct cfg80211_chan_def chandef;
335 struct list_head vifs;
336 struct list_head acq[IEEE80211_NUM_ACS];
339 /* do not dereference, use for comparison only */
340 struct ieee80211_vif *primary_sta;
342 struct ath_beacon_config beacon;
343 struct ath9k_hw_cal_data caldata;
344 struct timespec tsf_ts;
354 bool switch_after_beacon;
357 short nvifs_assigned;
358 unsigned int rxfilter;
361 enum ath_chanctx_event {
362 ATH_CHANCTX_EVENT_BEACON_PREPARE,
363 ATH_CHANCTX_EVENT_BEACON_SENT,
364 ATH_CHANCTX_EVENT_TSF_TIMER,
365 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
366 ATH_CHANCTX_EVENT_AUTHORIZED,
367 ATH_CHANCTX_EVENT_SWITCH,
368 ATH_CHANCTX_EVENT_ASSIGN,
369 ATH_CHANCTX_EVENT_UNASSIGN,
370 ATH_CHANCTX_EVENT_CHANGE,
371 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
374 enum ath_chanctx_state {
375 ATH_CHANCTX_STATE_IDLE,
376 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
377 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
378 ATH_CHANCTX_STATE_SWITCH,
379 ATH_CHANCTX_STATE_FORCE_ACTIVE,
382 struct ath_chanctx_sched {
384 bool offchannel_pending;
386 bool force_noa_update;
389 enum ath_chanctx_state state;
393 u32 switch_start_time;
394 unsigned int offchannel_duration;
395 unsigned int channel_switch_time;
397 /* backup, in case the hardware timer fails */
398 struct timer_list timer;
401 enum ath_offchannel_state {
403 ATH_OFFCHANNEL_PROBE_SEND,
404 ATH_OFFCHANNEL_PROBE_WAIT,
405 ATH_OFFCHANNEL_SUSPEND,
406 ATH_OFFCHANNEL_ROC_START,
407 ATH_OFFCHANNEL_ROC_WAIT,
408 ATH_OFFCHANNEL_ROC_DONE,
411 struct ath_offchannel {
412 struct ath_chanctx chan;
413 struct timer_list timer;
414 struct cfg80211_scan_request *scan_req;
415 struct ieee80211_vif *scan_vif;
417 enum ath_offchannel_state state;
418 struct ieee80211_channel *roc_chan;
419 struct ieee80211_vif *roc_vif;
424 #define case_rtn_string(val) case val: return #val
426 #define ath_for_each_chanctx(_sc, _ctx) \
427 for (ctx = &sc->chanctx[0]; \
428 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
431 void ath_chanctx_init(struct ath_softc *sc);
432 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
433 struct cfg80211_chan_def *chandef);
435 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
437 static inline struct ath_chanctx *
438 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
440 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
444 bool ath9k_is_chanctx_enabled(void);
445 void ath9k_fill_chanctx_ops(void);
446 void ath9k_init_channel_context(struct ath_softc *sc);
447 void ath9k_offchannel_init(struct ath_softc *sc);
448 void ath9k_deinit_channel_context(struct ath_softc *sc);
449 int ath9k_init_p2p(struct ath_softc *sc);
450 void ath9k_deinit_p2p(struct ath_softc *sc);
451 void ath9k_p2p_remove_vif(struct ath_softc *sc,
452 struct ieee80211_vif *vif);
453 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
454 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
455 struct ieee80211_vif *vif);
456 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
457 struct sk_buff *skb);
458 void ath9k_p2p_ps_timer(void *priv);
459 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
460 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
461 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
463 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
464 enum ath_chanctx_event ev);
465 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
466 enum ath_chanctx_event ev);
467 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
468 enum ath_chanctx_event ev);
469 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
470 void ath_offchannel_next(struct ath_softc *sc);
471 void ath_scan_complete(struct ath_softc *sc, bool abort);
472 void ath_roc_complete(struct ath_softc *sc, bool abort);
473 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
477 static inline bool ath9k_is_chanctx_enabled(void)
481 static inline void ath9k_fill_chanctx_ops(void)
484 static inline void ath9k_init_channel_context(struct ath_softc *sc)
487 static inline void ath9k_offchannel_init(struct ath_softc *sc)
490 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
493 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
494 enum ath_chanctx_event ev)
497 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
498 enum ath_chanctx_event ev)
501 static inline void ath_chanctx_event(struct ath_softc *sc,
502 struct ieee80211_vif *vif,
503 enum ath_chanctx_event ev)
506 static inline int ath9k_init_p2p(struct ath_softc *sc)
510 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
513 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
514 struct ieee80211_vif *vif)
517 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
520 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
521 struct ieee80211_vif *vif)
524 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
528 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
531 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
532 struct ath_chanctx *ctx)
535 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
536 struct ath_chanctx *ctx)
539 static inline void ath_chanctx_check_active(struct ath_softc *sc,
540 struct ath_chanctx *ctx)
544 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
546 void ath_startrecv(struct ath_softc *sc);
547 bool ath_stoprecv(struct ath_softc *sc);
548 u32 ath_calcrxfilter(struct ath_softc *sc);
549 int ath_rx_init(struct ath_softc *sc, int nbufs);
550 void ath_rx_cleanup(struct ath_softc *sc);
551 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
552 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
553 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
554 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
555 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
556 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
557 bool ath_drain_all_txq(struct ath_softc *sc);
558 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
559 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
560 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
561 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
562 void ath_txq_schedule_all(struct ath_softc *sc);
563 int ath_tx_init(struct ath_softc *sc, int nbufs);
564 int ath_txq_update(struct ath_softc *sc, int qnum,
565 struct ath9k_tx_queue_info *q);
566 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
567 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
568 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
569 struct ath_tx_control *txctl);
570 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
571 struct sk_buff *skb);
572 void ath_tx_tasklet(struct ath_softc *sc);
573 void ath_tx_edma_tasklet(struct ath_softc *sc);
574 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
576 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
577 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
579 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
580 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
581 struct ath_node *an);
582 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
583 struct ieee80211_sta *sta,
584 u16 tids, int nframes,
585 enum ieee80211_frame_release_type reason,
592 #define P2P_DEFAULT_CTWIN 10
595 struct list_head list;
600 u8 bssid[ETH_ALEN] __aligned(2);
604 struct ieee80211_vif *vif;
605 struct ath_node mcast_node;
607 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
608 struct ath_buf *av_bcbuf;
609 struct ath_chanctx *chanctx;
612 struct ieee80211_noa_data noa;
616 u32 offchannel_start;
617 u32 offchannel_duration;
619 /* These are used for both periodic and one-shot */
626 struct ath9k_vif_iter_data {
627 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
628 u8 mask[ETH_ALEN]; /* bssid mask */
633 int naps; /* number of AP vifs */
634 int nmeshes; /* number of mesh vifs */
635 int nstations; /* number of station vifs */
636 int nwds; /* number of WDS vifs */
637 int nadhocs; /* number of adhoc vifs */
638 struct ieee80211_vif *primary_sta;
641 void ath9k_calculate_iter_data(struct ath_softc *sc,
642 struct ath_chanctx *ctx,
643 struct ath9k_vif_iter_data *iter_data);
644 void ath9k_calculate_summary_state(struct ath_softc *sc,
645 struct ath_chanctx *ctx);
647 /*******************/
648 /* Beacon Handling */
649 /*******************/
652 * Regardless of the number of beacons we stagger, (i.e. regardless of the
653 * number of BSSIDs) if a given beacon does not go out even after waiting this
654 * number of beacon intervals, the game's up.
656 #define BSTUCK_THRESH 9
658 #define ATH_DEFAULT_BINTVAL 100 /* TU */
659 #define ATH_DEFAULT_BMISS_LIMIT 10
661 #define TSF_TO_TU(_h,_l) \
662 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
666 OK, /* no change needed */
667 UPDATE, /* update pending */
668 COMMIT /* beacon sent, commit change */
669 } updateslot; /* slot time update fsm */
673 struct ieee80211_vif *bslot[ATH_BCBUF];
676 struct ath_descdma bdma;
677 struct ath_txq *cabq;
678 struct list_head bbuf;
684 void ath9k_beacon_tasklet(unsigned long data);
685 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif,
687 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
688 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
689 void ath9k_set_beacon(struct ath_softc *sc);
690 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
691 void ath9k_csa_update(struct ath_softc *sc);
693 /*******************/
694 /* Link Monitoring */
695 /*******************/
697 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
698 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
699 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
700 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
701 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
702 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
703 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
704 #define ATH_ANI_MAX_SKIP_COUNT 10
705 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
706 #define ATH_PLL_WORK_INTERVAL 100
708 void ath_tx_complete_poll_work(struct work_struct *work);
709 void ath_reset_work(struct work_struct *work);
710 bool ath_hw_check(struct ath_softc *sc);
711 void ath_hw_pll_work(struct work_struct *work);
712 void ath_paprd_calibrate(struct work_struct *work);
713 void ath_ani_calibrate(unsigned long data);
714 void ath_start_ani(struct ath_softc *sc);
715 void ath_stop_ani(struct ath_softc *sc);
716 void ath_check_ani(struct ath_softc *sc);
717 int ath_update_survey_stats(struct ath_softc *sc);
718 void ath_update_survey_nf(struct ath_softc *sc, int channel);
719 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
720 void ath_ps_full_sleep(unsigned long data);
721 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
722 bool sw_pending, bool timeout_override);
728 #define ATH_DUMP_BTCOEX(_s, _val) \
730 len += scnprintf(buf + len, size - len, \
731 "%20s : %10d\n", _s, (_val)); \
735 BT_OP_PRIORITY_DETECTED,
740 spinlock_t btcoex_lock;
741 struct timer_list period_timer; /* Timer for BT period */
742 struct timer_list no_stomp_timer;
744 unsigned long bt_priority_time;
745 unsigned long op_flags;
746 int bt_stomp_type; /* Types of BT stomping */
747 u32 btcoex_no_stomp; /* in msec */
748 u32 btcoex_period; /* in msec */
749 u32 btscan_no_stomp; /* in msec */
753 struct ath_mci_profile mci;
757 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
758 int ath9k_init_btcoex(struct ath_softc *sc);
759 void ath9k_deinit_btcoex(struct ath_softc *sc);
760 void ath9k_start_btcoex(struct ath_softc *sc);
761 void ath9k_stop_btcoex(struct ath_softc *sc);
762 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
763 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
764 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
765 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
766 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
767 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
769 static inline int ath9k_init_btcoex(struct ath_softc *sc)
773 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
776 static inline void ath9k_start_btcoex(struct ath_softc *sc)
779 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
782 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
786 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
787 u32 max_4ms_framelen)
791 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
794 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
798 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
800 /********************/
802 /********************/
804 #define ATH_LED_PIN_DEF 1
805 #define ATH_LED_PIN_9287 8
806 #define ATH_LED_PIN_9300 10
807 #define ATH_LED_PIN_9485 6
808 #define ATH_LED_PIN_9462 4
810 #ifdef CONFIG_MAC80211_LEDS
811 void ath_init_leds(struct ath_softc *sc);
812 void ath_deinit_leds(struct ath_softc *sc);
813 void ath_fill_led_pin(struct ath_softc *sc);
815 static inline void ath_init_leds(struct ath_softc *sc)
819 static inline void ath_deinit_leds(struct ath_softc *sc)
822 static inline void ath_fill_led_pin(struct ath_softc *sc)
827 /************************/
828 /* Wake on Wireless LAN */
829 /************************/
831 struct ath9k_wow_pattern {
832 u8 pattern_bytes[MAX_PATTERN_SIZE];
833 u8 mask_bytes[MAX_PATTERN_SIZE];
837 #ifdef CONFIG_ATH9K_WOW
838 void ath9k_init_wow(struct ieee80211_hw *hw);
839 int ath9k_suspend(struct ieee80211_hw *hw,
840 struct cfg80211_wowlan *wowlan);
841 int ath9k_resume(struct ieee80211_hw *hw);
842 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
844 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
847 static inline int ath9k_suspend(struct ieee80211_hw *hw,
848 struct cfg80211_wowlan *wowlan)
852 static inline int ath9k_resume(struct ieee80211_hw *hw)
856 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
859 #endif /* CONFIG_ATH9K_WOW */
861 /*******************************/
862 /* Antenna diversity/combining */
863 /*******************************/
865 #define ATH_ANT_RX_CURRENT_SHIFT 4
866 #define ATH_ANT_RX_MAIN_SHIFT 2
867 #define ATH_ANT_RX_MASK 0x3
869 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
870 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
871 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
872 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
873 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
874 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
875 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
876 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
877 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
879 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
880 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
881 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
883 struct ath_ant_comb {
903 enum ath9k_ant_div_comb_lna_conf main_conf;
904 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
905 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
908 unsigned long scan_start_time;
911 * Card-specific config values.
917 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
919 /********************/
920 /* Main driver core */
921 /********************/
923 #define ATH9K_PCI_CUS198 0x0001
924 #define ATH9K_PCI_CUS230 0x0002
925 #define ATH9K_PCI_CUS217 0x0004
926 #define ATH9K_PCI_CUS252 0x0008
927 #define ATH9K_PCI_WOW 0x0010
928 #define ATH9K_PCI_BT_ANT_DIV 0x0020
929 #define ATH9K_PCI_D3_L1_WAR 0x0040
930 #define ATH9K_PCI_AR9565_1ANT 0x0080
931 #define ATH9K_PCI_AR9565_2ANT 0x0100
932 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
933 #define ATH9K_PCI_KILLER 0x0400
936 * Default cache line size, in bytes.
937 * Used when PCI device not fully initialized by bootrom/BIOS
939 #define DEFAULT_CACHELINE 32
940 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
941 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
942 #define MAX_GTT_CNT 5
944 /* Powersave flags */
945 #define PS_WAIT_FOR_BEACON BIT(0)
946 #define PS_WAIT_FOR_CAB BIT(1)
947 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
948 #define PS_WAIT_FOR_TX_ACK BIT(3)
949 #define PS_BEACON_SYNC BIT(4)
950 #define PS_WAIT_FOR_ANI BIT(5)
952 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
955 struct ieee80211_hw *hw;
958 struct survey_info *cur_survey;
959 struct survey_info survey[ATH9K_NUM_CHANNELS];
961 struct tasklet_struct intr_tq;
962 struct tasklet_struct bcon_tasklet;
963 struct ath_hw *sc_ah;
966 spinlock_t sc_serial_rw;
967 spinlock_t sc_pm_lock;
968 spinlock_t sc_pcu_lock;
970 struct work_struct paprd_work;
971 struct work_struct hw_reset_work;
972 struct completion paprd_complete;
973 wait_queue_head_t tx_wait;
975 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
976 struct work_struct chanctx_work;
977 struct ath_gen_timer *p2p_ps_timer;
978 struct ath_vif *p2p_ps_vif;
979 struct ath_chanctx_sched sched;
980 struct ath_offchannel offchannel;
981 struct ath_chanctx *next_chan;
982 struct completion go_beacon;
985 unsigned long driver_data;
989 u16 ps_flags; /* PS_* */
994 unsigned long ps_usecount;
998 struct ath_beacon beacon;
1000 struct cfg80211_chan_def cur_chandef;
1001 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1002 struct ath_chanctx *cur_chan;
1003 spinlock_t chan_lock;
1005 #ifdef CONFIG_MAC80211_LEDS
1006 bool led_registered;
1008 struct led_classdev led_cdev;
1011 #ifdef CONFIG_ATH9K_DEBUGFS
1012 struct ath9k_debug debug;
1014 struct delayed_work tx_complete_work;
1015 struct delayed_work hw_pll_work;
1016 struct timer_list sleep_timer;
1018 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1019 struct ath_btcoex btcoex;
1020 struct ath_mci_coex mci_coex;
1021 struct work_struct mci_work;
1024 struct ath_descdma txsdma;
1026 struct ath_ant_comb ant_comb;
1028 struct dfs_pattern_detector *dfs_detector;
1029 u64 dfs_prev_pulse_ts;
1031 /* relay(fs) channel for spectral scan */
1032 struct rchan *rfs_chan_spec_scan;
1033 enum spectral_mode spectral_mode;
1034 struct ath_spec_scan spec_config;
1036 struct ieee80211_vif *tx99_vif;
1037 struct sk_buff *tx99_skb;
1041 #ifdef CONFIG_ATH9K_WOW
1042 atomic_t wow_got_bmiss_intr;
1043 atomic_t wow_sleep_proc_intr; /* in the middle of WoW sleep ? */
1044 u32 wow_intr_before_sleep;
1052 #ifdef CONFIG_ATH9K_TX99
1053 void ath9k_tx99_init_debug(struct ath_softc *sc);
1054 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1055 struct ath_tx_control *txctl);
1057 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1060 static inline int ath9k_tx99_send(struct ath_softc *sc,
1061 struct sk_buff *skb,
1062 struct ath_tx_control *txctl)
1066 #endif /* CONFIG_ATH9K_TX99 */
1068 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1070 common->bus_ops->read_cachesize(common, csz);
1073 void ath9k_tasklet(unsigned long data);
1074 int ath_cabq_update(struct ath_softc *);
1075 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1076 irqreturn_t ath_isr(int irq, void *dev);
1077 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1078 void ath_cancel_work(struct ath_softc *sc);
1079 void ath_restart_work(struct ath_softc *sc);
1080 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1081 const struct ath_bus_ops *bus_ops);
1082 void ath9k_deinit_device(struct ath_softc *sc);
1083 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1084 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1085 void ath_start_rfkill_poll(struct ath_softc *sc);
1086 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1087 void ath9k_ps_wakeup(struct ath_softc *sc);
1088 void ath9k_ps_restore(struct ath_softc *sc);
1090 #ifdef CONFIG_ATH9K_PCI
1091 int ath_pci_init(void);
1092 void ath_pci_exit(void);
1094 static inline int ath_pci_init(void) { return 0; };
1095 static inline void ath_pci_exit(void) {};
1098 #ifdef CONFIG_ATH9K_AHB
1099 int ath_ahb_init(void);
1100 void ath_ahb_exit(void);
1102 static inline int ath_ahb_init(void) { return 0; };
1103 static inline void ath_ahb_exit(void) {};
1106 #endif /* ATH9K_H */