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_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;
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 buf_q;
237 struct sk_buff_head retry_q;
240 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
245 int baw_head; /* first un-acked tx buffer */
246 int baw_tail; /* next unused tx buffer slot */
250 bool clear_ps_filter;
254 struct ath_softc *sc;
255 struct ieee80211_sta *sta; /* station struct we're part of */
256 struct ieee80211_vif *vif; /* interface with which we're associated */
257 struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
266 #ifdef CONFIG_ATH9K_STATION_STATISTICS
267 struct ath_rx_rate_stats rx_rate_stats;
272 struct list_head list;
275 struct ath_tx_control {
278 struct ieee80211_sta *sta;
285 * @txq_map: Index is mac80211 queue number. This is
286 * not necessarily the same as the hardware queue number
291 spinlock_t txbuflock;
292 struct list_head txbuf;
293 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
294 struct ath_descdma txdma;
295 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
296 struct ath_txq *uapsdq;
297 u32 txq_max_pending[IEEE80211_NUM_ACS];
298 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
302 struct sk_buff_head rx_fifo;
312 struct list_head rxbuf;
313 struct ath_descdma rxdma;
314 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
316 struct ath_rxbuf *buf_hold;
317 struct sk_buff *frag;
322 /*******************/
323 /* Channel Context */
324 /*******************/
327 struct cfg80211_chan_def chandef;
328 struct list_head vifs;
329 struct list_head acq[IEEE80211_NUM_ACS];
332 /* do not dereference, use for comparison only */
333 struct ieee80211_vif *primary_sta;
335 struct ath_beacon_config beacon;
336 struct ath9k_hw_cal_data caldata;
337 struct timespec tsf_ts;
348 bool switch_after_beacon;
351 short nvifs_assigned;
352 unsigned int rxfilter;
355 enum ath_chanctx_event {
356 ATH_CHANCTX_EVENT_BEACON_PREPARE,
357 ATH_CHANCTX_EVENT_BEACON_SENT,
358 ATH_CHANCTX_EVENT_TSF_TIMER,
359 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
360 ATH_CHANCTX_EVENT_AUTHORIZED,
361 ATH_CHANCTX_EVENT_SWITCH,
362 ATH_CHANCTX_EVENT_ASSIGN,
363 ATH_CHANCTX_EVENT_UNASSIGN,
364 ATH_CHANCTX_EVENT_CHANGE,
365 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
368 enum ath_chanctx_state {
369 ATH_CHANCTX_STATE_IDLE,
370 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
371 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
372 ATH_CHANCTX_STATE_SWITCH,
373 ATH_CHANCTX_STATE_FORCE_ACTIVE,
376 struct ath_chanctx_sched {
379 bool offchannel_pending;
381 bool force_noa_update;
384 enum ath_chanctx_state state;
388 u32 switch_start_time;
389 unsigned int offchannel_duration;
390 unsigned int channel_switch_time;
392 /* backup, in case the hardware timer fails */
393 struct timer_list timer;
396 enum ath_offchannel_state {
398 ATH_OFFCHANNEL_PROBE_SEND,
399 ATH_OFFCHANNEL_PROBE_WAIT,
400 ATH_OFFCHANNEL_SUSPEND,
401 ATH_OFFCHANNEL_ROC_START,
402 ATH_OFFCHANNEL_ROC_WAIT,
403 ATH_OFFCHANNEL_ROC_DONE,
406 enum ath_roc_complete_reason {
407 ATH_ROC_COMPLETE_EXPIRE,
408 ATH_ROC_COMPLETE_ABORT,
409 ATH_ROC_COMPLETE_CANCEL,
412 struct ath_offchannel {
413 struct ath_chanctx chan;
414 struct timer_list timer;
415 struct cfg80211_scan_request *scan_req;
416 struct ieee80211_vif *scan_vif;
418 enum ath_offchannel_state state;
419 struct ieee80211_channel *roc_chan;
420 struct ieee80211_vif *roc_vif;
425 #define case_rtn_string(val) case val: return #val
427 #define ath_for_each_chanctx(_sc, _ctx) \
428 for (ctx = &sc->chanctx[0]; \
429 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
432 void ath_chanctx_init(struct ath_softc *sc);
433 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
434 struct cfg80211_chan_def *chandef);
436 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
438 static inline struct ath_chanctx *
439 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
441 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
445 bool ath9k_is_chanctx_enabled(void);
446 void ath9k_fill_chanctx_ops(void);
447 void ath9k_init_channel_context(struct ath_softc *sc);
448 void ath9k_offchannel_init(struct ath_softc *sc);
449 void ath9k_deinit_channel_context(struct ath_softc *sc);
450 int ath9k_init_p2p(struct ath_softc *sc);
451 void ath9k_deinit_p2p(struct ath_softc *sc);
452 void ath9k_p2p_remove_vif(struct ath_softc *sc,
453 struct ieee80211_vif *vif);
454 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
455 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
456 struct ieee80211_vif *vif);
457 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
458 struct sk_buff *skb);
459 void ath9k_p2p_ps_timer(void *priv);
460 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
461 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
462 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
464 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
465 enum ath_chanctx_event ev);
466 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
467 enum ath_chanctx_event ev);
468 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
469 enum ath_chanctx_event ev);
470 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
471 void ath_offchannel_next(struct ath_softc *sc);
472 void ath_scan_complete(struct ath_softc *sc, bool abort);
473 void ath_roc_complete(struct ath_softc *sc,
474 enum ath_roc_complete_reason reason);
475 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
479 static inline bool ath9k_is_chanctx_enabled(void)
483 static inline void ath9k_fill_chanctx_ops(void)
486 static inline void ath9k_init_channel_context(struct ath_softc *sc)
489 static inline void ath9k_offchannel_init(struct ath_softc *sc)
492 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
495 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
496 enum ath_chanctx_event ev)
499 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
500 enum ath_chanctx_event ev)
503 static inline void ath_chanctx_event(struct ath_softc *sc,
504 struct ieee80211_vif *vif,
505 enum ath_chanctx_event ev)
508 static inline int ath9k_init_p2p(struct ath_softc *sc)
512 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
515 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
516 struct ieee80211_vif *vif)
519 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
522 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
523 struct ieee80211_vif *vif)
526 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
530 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
533 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
534 struct ath_chanctx *ctx)
537 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
538 struct ath_chanctx *ctx)
541 static inline void ath_chanctx_check_active(struct ath_softc *sc,
542 struct ath_chanctx *ctx)
546 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
548 void ath_startrecv(struct ath_softc *sc);
549 bool ath_stoprecv(struct ath_softc *sc);
550 u32 ath_calcrxfilter(struct ath_softc *sc);
551 int ath_rx_init(struct ath_softc *sc, int nbufs);
552 void ath_rx_cleanup(struct ath_softc *sc);
553 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
554 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
555 void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq);
556 void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq);
557 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
558 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
559 bool ath_drain_all_txq(struct ath_softc *sc);
560 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
561 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
562 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
563 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
564 void ath_txq_schedule_all(struct ath_softc *sc);
565 int ath_tx_init(struct ath_softc *sc, int nbufs);
566 int ath_txq_update(struct ath_softc *sc, int qnum,
567 struct ath9k_tx_queue_info *q);
568 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
569 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
570 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
571 struct ath_tx_control *txctl);
572 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
573 struct sk_buff *skb);
574 void ath_tx_tasklet(struct ath_softc *sc);
575 void ath_tx_edma_tasklet(struct ath_softc *sc);
576 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
578 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
579 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
581 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
582 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
583 struct ath_node *an);
584 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
585 struct ieee80211_sta *sta,
586 u16 tids, int nframes,
587 enum ieee80211_frame_release_type reason,
594 #define P2P_DEFAULT_CTWIN 10
597 struct list_head list;
602 u8 bssid[ETH_ALEN] __aligned(2);
606 struct ieee80211_vif *vif;
607 struct ath_node mcast_node;
609 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
610 struct ath_buf *av_bcbuf;
611 struct ath_chanctx *chanctx;
614 struct ieee80211_noa_data noa;
618 u32 offchannel_start;
619 u32 offchannel_duration;
621 /* These are used for both periodic and one-shot */
628 struct ath9k_vif_iter_data {
629 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
630 u8 mask[ETH_ALEN]; /* bssid mask */
635 int naps; /* number of AP vifs */
636 int nmeshes; /* number of mesh vifs */
637 int nstations; /* number of station vifs */
638 int nwds; /* number of WDS vifs */
639 int nadhocs; /* number of adhoc vifs */
640 int nocbs; /* number of OCB vifs */
641 int nbcnvifs; /* number of beaconing vifs */
642 struct ieee80211_vif *primary_beacon_vif;
643 struct ieee80211_vif *primary_sta;
646 void ath9k_calculate_iter_data(struct ath_softc *sc,
647 struct ath_chanctx *ctx,
648 struct ath9k_vif_iter_data *iter_data);
649 void ath9k_calculate_summary_state(struct ath_softc *sc,
650 struct ath_chanctx *ctx);
651 void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
653 /*******************/
654 /* Beacon Handling */
655 /*******************/
658 * Regardless of the number of beacons we stagger, (i.e. regardless of the
659 * number of BSSIDs) if a given beacon does not go out even after waiting this
660 * number of beacon intervals, the game's up.
662 #define BSTUCK_THRESH 9
664 #define ATH_DEFAULT_BINTVAL 100 /* TU */
665 #define ATH_DEFAULT_BMISS_LIMIT 10
667 #define TSF_TO_TU(_h,_l) \
668 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
672 OK, /* no change needed */
673 UPDATE, /* update pending */
674 COMMIT /* beacon sent, commit change */
675 } updateslot; /* slot time update fsm */
679 struct ieee80211_vif *bslot[ATH_BCBUF];
682 struct ath_descdma bdma;
683 struct ath_txq *cabq;
684 struct list_head bbuf;
690 void ath9k_beacon_tasklet(unsigned long data);
691 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
693 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
694 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
695 void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
696 void ath9k_set_beacon(struct ath_softc *sc);
697 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
698 void ath9k_csa_update(struct ath_softc *sc);
700 /*******************/
701 /* Link Monitoring */
702 /*******************/
704 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
705 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
706 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
707 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
708 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
709 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
710 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
711 #define ATH_ANI_MAX_SKIP_COUNT 10
712 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
713 #define ATH_PLL_WORK_INTERVAL 100
715 void ath_tx_complete_poll_work(struct work_struct *work);
716 void ath_reset_work(struct work_struct *work);
717 bool ath_hw_check(struct ath_softc *sc);
718 void ath_hw_pll_work(struct work_struct *work);
719 void ath_paprd_calibrate(struct work_struct *work);
720 void ath_ani_calibrate(unsigned long data);
721 void ath_start_ani(struct ath_softc *sc);
722 void ath_stop_ani(struct ath_softc *sc);
723 void ath_check_ani(struct ath_softc *sc);
724 int ath_update_survey_stats(struct ath_softc *sc);
725 void ath_update_survey_nf(struct ath_softc *sc, int channel);
726 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
727 void ath_ps_full_sleep(unsigned long data);
728 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
729 bool sw_pending, bool timeout_override);
735 #define ATH_DUMP_BTCOEX(_s, _val) \
737 len += scnprintf(buf + len, size - len, \
738 "%20s : %10d\n", _s, (_val)); \
742 BT_OP_PRIORITY_DETECTED,
747 spinlock_t btcoex_lock;
748 struct timer_list period_timer; /* Timer for BT period */
749 struct timer_list no_stomp_timer;
751 unsigned long bt_priority_time;
752 unsigned long op_flags;
753 int bt_stomp_type; /* Types of BT stomping */
754 u32 btcoex_no_stomp; /* in msec */
755 u32 btcoex_period; /* in msec */
756 u32 btscan_no_stomp; /* in msec */
760 struct ath_mci_profile mci;
764 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
765 int ath9k_init_btcoex(struct ath_softc *sc);
766 void ath9k_deinit_btcoex(struct ath_softc *sc);
767 void ath9k_start_btcoex(struct ath_softc *sc);
768 void ath9k_stop_btcoex(struct ath_softc *sc);
769 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
770 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
771 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
772 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
773 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
774 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
776 static inline int ath9k_init_btcoex(struct ath_softc *sc)
780 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
783 static inline void ath9k_start_btcoex(struct ath_softc *sc)
786 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
789 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
793 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
794 u32 max_4ms_framelen)
798 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
801 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
805 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
807 /********************/
809 /********************/
811 #define ATH_LED_PIN_DEF 1
812 #define ATH_LED_PIN_9287 8
813 #define ATH_LED_PIN_9300 10
814 #define ATH_LED_PIN_9485 6
815 #define ATH_LED_PIN_9462 4
817 #ifdef CONFIG_MAC80211_LEDS
818 void ath_init_leds(struct ath_softc *sc);
819 void ath_deinit_leds(struct ath_softc *sc);
821 static inline void ath_init_leds(struct ath_softc *sc)
825 static inline void ath_deinit_leds(struct ath_softc *sc)
830 /************************/
831 /* Wake on Wireless LAN */
832 /************************/
834 #ifdef CONFIG_ATH9K_WOW
835 void ath9k_init_wow(struct ieee80211_hw *hw);
836 void ath9k_deinit_wow(struct ieee80211_hw *hw);
837 int ath9k_suspend(struct ieee80211_hw *hw,
838 struct cfg80211_wowlan *wowlan);
839 int ath9k_resume(struct ieee80211_hw *hw);
840 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
842 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
845 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
848 static inline int ath9k_suspend(struct ieee80211_hw *hw,
849 struct cfg80211_wowlan *wowlan)
853 static inline int ath9k_resume(struct ieee80211_hw *hw)
857 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
860 #endif /* CONFIG_ATH9K_WOW */
862 /*******************************/
863 /* Antenna diversity/combining */
864 /*******************************/
866 #define ATH_ANT_RX_CURRENT_SHIFT 4
867 #define ATH_ANT_RX_MAIN_SHIFT 2
868 #define ATH_ANT_RX_MASK 0x3
870 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
871 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
872 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
873 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
874 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
875 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
876 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
877 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
878 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
880 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
881 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
882 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
884 struct ath_ant_comb {
904 enum ath9k_ant_div_comb_lna_conf main_conf;
905 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
906 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
909 unsigned long scan_start_time;
912 * Card-specific config values.
918 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
920 /********************/
921 /* Main driver core */
922 /********************/
924 #define ATH9K_PCI_CUS198 0x0001
925 #define ATH9K_PCI_CUS230 0x0002
926 #define ATH9K_PCI_CUS217 0x0004
927 #define ATH9K_PCI_CUS252 0x0008
928 #define ATH9K_PCI_WOW 0x0010
929 #define ATH9K_PCI_BT_ANT_DIV 0x0020
930 #define ATH9K_PCI_D3_L1_WAR 0x0040
931 #define ATH9K_PCI_AR9565_1ANT 0x0080
932 #define ATH9K_PCI_AR9565_2ANT 0x0100
933 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
934 #define ATH9K_PCI_KILLER 0x0400
935 #define ATH9K_PCI_LED_ACT_HI 0x0800
938 * Default cache line size, in bytes.
939 * Used when PCI device not fully initialized by bootrom/BIOS
941 #define DEFAULT_CACHELINE 32
942 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
943 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
944 #define MAX_GTT_CNT 5
946 /* Powersave flags */
947 #define PS_WAIT_FOR_BEACON BIT(0)
948 #define PS_WAIT_FOR_CAB BIT(1)
949 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
950 #define PS_WAIT_FOR_TX_ACK BIT(3)
951 #define PS_BEACON_SYNC BIT(4)
952 #define PS_WAIT_FOR_ANI BIT(5)
954 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
957 struct ieee80211_hw *hw;
960 struct survey_info *cur_survey;
961 struct survey_info survey[ATH9K_NUM_CHANNELS];
963 spinlock_t intr_lock;
964 struct tasklet_struct intr_tq;
965 struct tasklet_struct bcon_tasklet;
966 struct ath_hw *sc_ah;
969 spinlock_t sc_serial_rw;
970 spinlock_t sc_pm_lock;
971 spinlock_t sc_pcu_lock;
973 struct work_struct paprd_work;
974 struct work_struct hw_reset_work;
975 struct completion paprd_complete;
976 wait_queue_head_t tx_wait;
978 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
979 struct work_struct chanctx_work;
980 struct ath_gen_timer *p2p_ps_timer;
981 struct ath_vif *p2p_ps_vif;
982 struct ath_chanctx_sched sched;
983 struct ath_offchannel offchannel;
984 struct ath_chanctx *next_chan;
985 struct completion go_beacon;
986 struct timespec last_event_time;
989 unsigned long driver_data;
993 u16 ps_flags; /* PS_* */
997 unsigned long ps_usecount;
1001 struct ath_beacon beacon;
1003 struct cfg80211_chan_def cur_chandef;
1004 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1005 struct ath_chanctx *cur_chan;
1006 spinlock_t chan_lock;
1008 #ifdef CONFIG_MAC80211_LEDS
1009 bool led_registered;
1011 struct led_classdev led_cdev;
1014 #ifdef CONFIG_ATH9K_DEBUGFS
1015 struct ath9k_debug debug;
1017 struct delayed_work tx_complete_work;
1018 struct delayed_work hw_pll_work;
1019 struct timer_list sleep_timer;
1021 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1022 struct ath_btcoex btcoex;
1023 struct ath_mci_coex mci_coex;
1024 struct work_struct mci_work;
1027 struct ath_descdma txsdma;
1029 struct ath_ant_comb ant_comb;
1031 struct dfs_pattern_detector *dfs_detector;
1032 u64 dfs_prev_pulse_ts;
1035 struct ath_spec_scan_priv spec_priv;
1037 struct ieee80211_vif *tx99_vif;
1038 struct sk_buff *tx99_skb;
1042 #ifdef CONFIG_ATH9K_WOW
1043 u32 wow_intr_before_sleep;
1047 #ifdef CONFIG_ATH9K_HWRNG
1049 struct task_struct *rng_task;
1057 #ifdef CONFIG_ATH9K_TX99
1058 void ath9k_tx99_init_debug(struct ath_softc *sc);
1059 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1060 struct ath_tx_control *txctl);
1062 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1065 static inline int ath9k_tx99_send(struct ath_softc *sc,
1066 struct sk_buff *skb,
1067 struct ath_tx_control *txctl)
1071 #endif /* CONFIG_ATH9K_TX99 */
1073 /***************************/
1074 /* Random Number Generator */
1075 /***************************/
1076 #ifdef CONFIG_ATH9K_HWRNG
1077 void ath9k_rng_start(struct ath_softc *sc);
1078 void ath9k_rng_stop(struct ath_softc *sc);
1080 static inline void ath9k_rng_start(struct ath_softc *sc)
1084 static inline void ath9k_rng_stop(struct ath_softc *sc)
1089 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1091 common->bus_ops->read_cachesize(common, csz);
1094 void ath9k_tasklet(unsigned long data);
1095 int ath_cabq_update(struct ath_softc *);
1096 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1097 irqreturn_t ath_isr(int irq, void *dev);
1098 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1099 void ath_cancel_work(struct ath_softc *sc);
1100 void ath_restart_work(struct ath_softc *sc);
1101 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1102 const struct ath_bus_ops *bus_ops);
1103 void ath9k_deinit_device(struct ath_softc *sc);
1104 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
1105 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1106 void ath_start_rfkill_poll(struct ath_softc *sc);
1107 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1108 void ath9k_ps_wakeup(struct ath_softc *sc);
1109 void ath9k_ps_restore(struct ath_softc *sc);
1111 #ifdef CONFIG_ATH9K_PCI
1112 int ath_pci_init(void);
1113 void ath_pci_exit(void);
1115 static inline int ath_pci_init(void) { return 0; };
1116 static inline void ath_pci_exit(void) {};
1119 #ifdef CONFIG_ATH9K_AHB
1120 int ath_ahb_init(void);
1121 void ath_ahb_exit(void);
1123 static inline int ath_ahb_init(void) { return 0; };
1124 static inline void ath_ahb_exit(void) {};
1127 #endif /* ATH9K_H */