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/kstrtox.h>
24 #include <linux/leds.h>
25 #include <linux/completion.h>
26 #include <linux/time.h>
27 #include <linux/hw_random.h>
37 extern struct ieee80211_ops ath9k_ops;
38 extern int ath9k_modparam_nohwcrypt;
39 extern int ath9k_led_blink;
40 extern bool is_ath9k_unloaded;
41 extern int ath9k_use_chanctx;
42 extern int ath9k_use_msi;
44 /*************************/
45 /* Descriptor Management */
46 /*************************/
48 #define ATH_TXSTATUS_RING_SIZE 512
50 /* Macro to expand scalars to 64-bit objects */
51 #define ito64(x) (sizeof(x) == 1) ? \
52 (((unsigned long long int)(x)) & (0xff)) : \
54 (((unsigned long long int)(x)) & 0xffff) : \
56 (((unsigned long long int)(x)) & 0xffffffff) : \
57 (unsigned long long int)(x))
59 #define ATH_TXBUF_RESET(_bf) do { \
60 (_bf)->bf_lastbf = NULL; \
61 (_bf)->bf_next = NULL; \
62 memset(&((_bf)->bf_state), 0, \
63 sizeof(struct ath_buf_state)); \
66 #define DS2PHYS(_dd, _ds) \
67 ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc))
68 #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0)
69 #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096)
73 dma_addr_t dd_desc_paddr;
77 int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
78 struct list_head *head, const char *name,
79 int nbuf, int ndesc, bool is_tx);
85 #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<<i))
87 /* increment with wrap-around */
88 #define INCR(_l, _sz) do { \
90 (_l) &= ((_sz) - 1); \
95 #define ATH_TXBUF_RESERVE 5
96 #define ATH_TXMAXTRY 13
97 #define ATH_MAX_SW_RETRIES 30
99 #define TID_TO_WME_AC(_tid) \
100 ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
101 (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
102 (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
105 #define ATH_AGGR_DELIM_SZ 4
106 #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
107 /* number of delimiters for encryption padding */
108 #define ATH_AGGR_ENCRYPTDELIM 10
109 /* minimum h/w qdepth to be sustained to maximize aggregation */
110 #define ATH_AGGR_MIN_QDEPTH 2
111 /* minimum h/w qdepth for non-aggregated traffic */
112 #define ATH_NON_AGGR_MIN_QDEPTH 8
113 #define ATH_HW_CHECK_POLL_INT 1000
114 #define ATH_TXFIFO_DEPTH 8
115 #define ATH_TX_ERROR 0x01
117 /* Stop tx traffic 1ms before the GO goes away */
118 #define ATH_P2P_PS_STOP_TIME 1000
120 #define IEEE80211_SEQ_SEQ_SHIFT 4
121 #define IEEE80211_SEQ_MAX 4096
122 #define IEEE80211_WEP_IVLEN 3
123 #define IEEE80211_WEP_KIDLEN 1
124 #define IEEE80211_WEP_CRCLEN 4
125 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
126 (IEEE80211_WEP_IVLEN + \
127 IEEE80211_WEP_KIDLEN + \
128 IEEE80211_WEP_CRCLEN))
130 /* return whether a bit at index _n in bitmap _bm is set
131 * _sz is the size of the bitmap */
132 #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
133 ((_bm)[(_n) >> 5] & (1 << ((_n) & 31))))
135 /* return block-ack bitmap index given sequence and starting sequence */
136 #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1))
138 /* return the seqno for _start + _offset */
139 #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1))
141 /* returns delimiter padding required given the packet length */
142 #define ATH_AGGR_GET_NDELIM(_len) \
143 (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \
144 DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ))
146 #define BAW_WITHIN(_start, _bawsz, _seqno) \
147 ((((_seqno) - (_start)) & 4095) < (_bawsz))
149 #define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno)
151 #define IS_HT_RATE(rate) (rate & 0x80)
152 #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e))
153 #define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf))
161 int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
162 u32 axq_qnum; /* ath9k hardware queue number */
164 struct list_head axq_q;
168 bool axq_tx_inprogress;
169 struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
173 struct sk_buff_head complete_q;
176 struct ath_frame_info {
186 enum ath9k_key_type keytype:2;
190 struct list_head list;
191 struct sk_buff *bf_mpdu;
194 dma_addr_t bf_buf_addr;
198 * enum buffer_type - Buffer type flags
200 * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
201 * @BUF_AGGR: Indicates whether the buffer can be aggregated
202 * (used in aggregation scheduling)
209 #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
210 #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR)
212 struct ath_buf_state {
218 unsigned long bfs_paprd_timestamp;
222 struct list_head list;
223 struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
225 struct ath_buf *bf_next; /* next subframe in the aggregate */
226 struct sk_buff *bf_mpdu; /* enclosing frame structure */
227 void *bf_desc; /* virtual addr of desc */
228 dma_addr_t bf_daddr; /* physical addr of desc */
229 dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
230 struct ieee80211_tx_rate rates[4];
231 struct ath_buf_state bf_state;
235 struct list_head list;
236 struct sk_buff_head retry_q;
239 unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
244 int baw_head; /* first un-acked tx buffer */
245 int baw_tail; /* next unused tx buffer slot */
249 bool clear_ps_filter;
252 void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid);
255 struct ath_softc *sc;
256 struct ieee80211_sta *sta; /* station struct we're part of */
257 struct ieee80211_vif *vif; /* interface with which we're associated */
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;
284 * @txq_map: Index is mac80211 queue number. This is
285 * not necessarily the same as the hardware queue number
290 spinlock_t txbuflock;
291 struct list_head txbuf;
292 struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
293 struct ath_descdma txdma;
294 struct ath_txq *txq_map[IEEE80211_NUM_ACS];
295 struct ath_txq *uapsdq;
296 u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
300 struct sk_buff_head rx_fifo;
310 struct list_head rxbuf;
311 struct ath_descdma rxdma;
312 struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
314 struct ath_rxbuf *buf_hold;
315 struct sk_buff *frag;
320 /*******************/
321 /* Channel Context */
322 /*******************/
325 struct list_head acq_new;
326 struct list_head acq_old;
331 struct cfg80211_chan_def chandef;
332 struct list_head vifs;
333 struct ath_acq acq[IEEE80211_NUM_ACS];
336 /* do not dereference, use for comparison only */
337 struct ieee80211_vif *primary_sta;
339 struct ath_beacon_config beacon;
340 struct ath9k_hw_cal_data caldata;
352 bool switch_after_beacon;
355 short nvifs_assigned;
356 unsigned int rxfilter;
359 enum ath_chanctx_event {
360 ATH_CHANCTX_EVENT_BEACON_PREPARE,
361 ATH_CHANCTX_EVENT_BEACON_SENT,
362 ATH_CHANCTX_EVENT_TSF_TIMER,
363 ATH_CHANCTX_EVENT_BEACON_RECEIVED,
364 ATH_CHANCTX_EVENT_AUTHORIZED,
365 ATH_CHANCTX_EVENT_SWITCH,
366 ATH_CHANCTX_EVENT_ASSIGN,
367 ATH_CHANCTX_EVENT_UNASSIGN,
368 ATH_CHANCTX_EVENT_CHANGE,
369 ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL,
372 enum ath_chanctx_state {
373 ATH_CHANCTX_STATE_IDLE,
374 ATH_CHANCTX_STATE_WAIT_FOR_BEACON,
375 ATH_CHANCTX_STATE_WAIT_FOR_TIMER,
376 ATH_CHANCTX_STATE_SWITCH,
377 ATH_CHANCTX_STATE_FORCE_ACTIVE,
380 struct ath_chanctx_sched {
383 bool offchannel_pending;
385 bool force_noa_update;
388 enum ath_chanctx_state state;
392 u32 switch_start_time;
393 unsigned int offchannel_duration;
394 unsigned int channel_switch_time;
396 /* backup, in case the hardware timer fails */
397 struct timer_list timer;
400 enum ath_offchannel_state {
402 ATH_OFFCHANNEL_PROBE_SEND,
403 ATH_OFFCHANNEL_PROBE_WAIT,
404 ATH_OFFCHANNEL_SUSPEND,
405 ATH_OFFCHANNEL_ROC_START,
406 ATH_OFFCHANNEL_ROC_WAIT,
407 ATH_OFFCHANNEL_ROC_DONE,
410 enum ath_roc_complete_reason {
411 ATH_ROC_COMPLETE_EXPIRE,
412 ATH_ROC_COMPLETE_ABORT,
413 ATH_ROC_COMPLETE_CANCEL,
416 struct ath_offchannel {
417 struct ath_chanctx chan;
418 struct timer_list timer;
419 struct cfg80211_scan_request *scan_req;
420 struct ieee80211_vif *scan_vif;
422 enum ath_offchannel_state state;
423 struct ieee80211_channel *roc_chan;
424 struct ieee80211_vif *roc_vif;
429 static inline struct ath_atx_tid *
430 ath_node_to_tid(struct ath_node *an, u8 tidno)
432 struct ieee80211_sta *sta = an->sta;
433 struct ieee80211_vif *vif = an->vif;
434 struct ieee80211_txq *txq;
438 txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)];
442 return (struct ath_atx_tid *) txq->drv_priv;
445 #define case_rtn_string(val) case val: return #val
447 #define ath_for_each_chanctx(_sc, _ctx) \
448 for (ctx = &sc->chanctx[0]; \
449 ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \
452 void ath_chanctx_init(struct ath_softc *sc);
453 void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
454 struct cfg80211_chan_def *chandef);
456 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
458 static inline struct ath_chanctx *
459 ath_chanctx_get(struct ieee80211_chanctx_conf *ctx)
461 struct ath_chanctx **ptr = (void *) ctx->drv_priv;
465 bool ath9k_is_chanctx_enabled(void);
466 void ath9k_fill_chanctx_ops(void);
467 void ath9k_init_channel_context(struct ath_softc *sc);
468 void ath9k_offchannel_init(struct ath_softc *sc);
469 void ath9k_deinit_channel_context(struct ath_softc *sc);
470 int ath9k_init_p2p(struct ath_softc *sc);
471 void ath9k_deinit_p2p(struct ath_softc *sc);
472 void ath9k_p2p_remove_vif(struct ath_softc *sc,
473 struct ieee80211_vif *vif);
474 void ath9k_p2p_beacon_sync(struct ath_softc *sc);
475 void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
476 struct ieee80211_vif *vif);
477 void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
478 struct sk_buff *skb);
479 void ath9k_p2p_ps_timer(void *priv);
480 void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
481 void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx);
482 void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx);
484 void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
485 enum ath_chanctx_event ev);
486 void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
487 enum ath_chanctx_event ev);
488 void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif,
489 enum ath_chanctx_event ev);
490 void ath_chanctx_set_next(struct ath_softc *sc, bool force);
491 void ath_offchannel_next(struct ath_softc *sc);
492 void ath_scan_complete(struct ath_softc *sc, bool abort);
493 void ath_roc_complete(struct ath_softc *sc,
494 enum ath_roc_complete_reason reason);
495 struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
499 static inline bool ath9k_is_chanctx_enabled(void)
503 static inline void ath9k_fill_chanctx_ops(void)
506 static inline void ath9k_init_channel_context(struct ath_softc *sc)
509 static inline void ath9k_offchannel_init(struct ath_softc *sc)
512 static inline void ath9k_deinit_channel_context(struct ath_softc *sc)
515 static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc,
516 enum ath_chanctx_event ev)
519 static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc,
520 enum ath_chanctx_event ev)
523 static inline void ath_chanctx_event(struct ath_softc *sc,
524 struct ieee80211_vif *vif,
525 enum ath_chanctx_event ev)
528 static inline int ath9k_init_p2p(struct ath_softc *sc)
532 static inline void ath9k_deinit_p2p(struct ath_softc *sc)
535 static inline void ath9k_p2p_remove_vif(struct ath_softc *sc,
536 struct ieee80211_vif *vif)
539 static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc)
542 static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc,
543 struct ieee80211_vif *vif)
546 static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp,
550 static inline void ath9k_p2p_ps_timer(struct ath_softc *sc)
553 static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc,
554 struct ath_chanctx *ctx)
557 static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc,
558 struct ath_chanctx *ctx)
561 static inline void ath_chanctx_check_active(struct ath_softc *sc,
562 struct ath_chanctx *ctx)
566 #endif /* CONFIG_ATH9K_CHANNEL_CONTEXT */
568 static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
570 spin_lock_bh(&txq->axq_lock);
572 static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq)
574 spin_unlock_bh(&txq->axq_lock);
577 void ath_startrecv(struct ath_softc *sc);
578 bool ath_stoprecv(struct ath_softc *sc);
579 u32 ath_calcrxfilter(struct ath_softc *sc);
580 int ath_rx_init(struct ath_softc *sc, int nbufs);
581 void ath_rx_cleanup(struct ath_softc *sc);
582 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
583 struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
584 void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq);
585 void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
586 bool ath_drain_all_txq(struct ath_softc *sc);
587 void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq);
588 void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an);
589 void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an);
590 void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq);
591 void ath_txq_schedule_all(struct ath_softc *sc);
592 int ath_tx_init(struct ath_softc *sc, int nbufs);
593 int ath_txq_update(struct ath_softc *sc, int qnum,
594 struct ath9k_tx_queue_info *q);
595 u32 ath_pkt_duration(u8 rix, int pktlen, int width,
596 int half_gi, bool shortPreamble);
597 void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
598 void ath_assign_seq(struct ath_common *common, struct sk_buff *skb);
599 int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
600 struct ath_tx_control *txctl);
601 void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
602 struct sk_buff *skb);
603 void ath_tx_tasklet(struct ath_softc *sc);
604 void ath_tx_edma_tasklet(struct ath_softc *sc);
605 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
607 void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
609 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
610 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
611 struct ath_node *an);
612 void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
613 struct ieee80211_sta *sta,
614 u16 tids, int nframes,
615 enum ieee80211_frame_release_type reason,
617 void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue);
623 #define P2P_DEFAULT_CTWIN 10
626 struct list_head list;
631 u8 bssid[ETH_ALEN] __aligned(2);
635 struct ieee80211_vif *vif;
636 struct ath_node mcast_node;
638 __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
639 struct ath_buf *av_bcbuf;
640 struct ath_chanctx *chanctx;
643 struct ieee80211_noa_data noa;
647 u32 offchannel_start;
648 u32 offchannel_duration;
650 /* These are used for both periodic and one-shot */
657 struct ath9k_vif_iter_data {
658 u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */
659 u8 mask[ETH_ALEN]; /* bssid mask */
664 int naps; /* number of AP vifs */
665 int nmeshes; /* number of mesh vifs */
666 int nstations; /* number of station vifs */
667 int nadhocs; /* number of adhoc vifs */
668 int nocbs; /* number of OCB vifs */
669 int nbcnvifs; /* number of beaconing vifs */
670 struct ieee80211_vif *primary_beacon_vif;
671 struct ieee80211_vif *primary_sta;
674 void ath9k_calculate_iter_data(struct ath_softc *sc,
675 struct ath_chanctx *ctx,
676 struct ath9k_vif_iter_data *iter_data);
677 void ath9k_calculate_summary_state(struct ath_softc *sc,
678 struct ath_chanctx *ctx);
679 void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif);
681 /*******************/
682 /* Beacon Handling */
683 /*******************/
686 * Regardless of the number of beacons we stagger, (i.e. regardless of the
687 * number of BSSIDs) if a given beacon does not go out even after waiting this
688 * number of beacon intervals, the game's up.
690 #define BSTUCK_THRESH 9
692 #define ATH_DEFAULT_BINTVAL 100 /* TU */
693 #define ATH_DEFAULT_BMISS_LIMIT 10
695 #define TSF_TO_TU(_h,_l) \
696 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
700 OK, /* no change needed */
701 UPDATE, /* update pending */
702 COMMIT /* beacon sent, commit change */
703 } updateslot; /* slot time update fsm */
707 struct ieee80211_vif *bslot[ATH_BCBUF];
710 struct ath_descdma bdma;
711 struct ath_txq *cabq;
712 struct list_head bbuf;
718 void ath9k_beacon_tasklet(struct tasklet_struct *t);
719 void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif,
721 void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
722 void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif);
723 void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc);
724 void ath9k_set_beacon(struct ath_softc *sc);
725 bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif);
726 void ath9k_csa_update(struct ath_softc *sc);
728 /*******************/
729 /* Link Monitoring */
730 /*******************/
732 #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
733 #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */
734 #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */
735 #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */
736 #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */
737 #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
738 #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
739 #define ATH_ANI_MAX_SKIP_COUNT 10
740 #define ATH_PAPRD_TIMEOUT 100 /* msecs */
741 #define ATH_PLL_WORK_INTERVAL 100
743 void ath_hw_check_work(struct work_struct *work);
744 void ath_reset_work(struct work_struct *work);
745 bool ath_hw_check(struct ath_softc *sc);
746 void ath_hw_pll_work(struct work_struct *work);
747 void ath_paprd_calibrate(struct work_struct *work);
748 void ath_ani_calibrate(struct timer_list *t);
749 void ath_start_ani(struct ath_softc *sc);
750 void ath_stop_ani(struct ath_softc *sc);
751 void ath_check_ani(struct ath_softc *sc);
752 int ath_update_survey_stats(struct ath_softc *sc);
753 void ath_update_survey_nf(struct ath_softc *sc, int channel);
754 void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
755 void ath_ps_full_sleep(struct timer_list *t);
756 void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop,
757 bool sw_pending, bool timeout_override);
763 #define ATH_DUMP_BTCOEX(_s, _val) \
765 len += scnprintf(buf + len, size - len, \
766 "%20s : %10d\n", _s, (_val)); \
770 BT_OP_PRIORITY_DETECTED,
775 spinlock_t btcoex_lock;
776 struct timer_list period_timer; /* Timer for BT period */
777 struct timer_list no_stomp_timer;
779 unsigned long bt_priority_time;
780 unsigned long op_flags;
781 int bt_stomp_type; /* Types of BT stomping */
782 u32 btcoex_no_stomp; /* in msec */
783 u32 btcoex_period; /* in msec */
784 u32 btscan_no_stomp; /* in msec */
788 struct ath_mci_profile mci;
792 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
793 int ath9k_init_btcoex(struct ath_softc *sc);
794 void ath9k_deinit_btcoex(struct ath_softc *sc);
795 void ath9k_start_btcoex(struct ath_softc *sc);
796 void ath9k_stop_btcoex(struct ath_softc *sc);
797 void ath9k_btcoex_timer_resume(struct ath_softc *sc);
798 void ath9k_btcoex_timer_pause(struct ath_softc *sc);
799 void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
800 u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
801 void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
802 int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size);
804 static inline int ath9k_init_btcoex(struct ath_softc *sc)
808 static inline void ath9k_deinit_btcoex(struct ath_softc *sc)
811 static inline void ath9k_start_btcoex(struct ath_softc *sc)
814 static inline void ath9k_stop_btcoex(struct ath_softc *sc)
817 static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc,
821 static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
822 u32 max_4ms_framelen)
826 static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
829 static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
833 #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
835 /********************/
837 /********************/
839 #define ATH_LED_PIN_DEF 1
840 #define ATH_LED_PIN_9287 8
841 #define ATH_LED_PIN_9300 10
842 #define ATH_LED_PIN_9485 6
843 #define ATH_LED_PIN_9462 4
845 #ifdef CONFIG_MAC80211_LEDS
846 void ath_init_leds(struct ath_softc *sc);
847 void ath_deinit_leds(struct ath_softc *sc);
849 static inline void ath_init_leds(struct ath_softc *sc)
853 static inline void ath_deinit_leds(struct ath_softc *sc)
858 /************************/
859 /* Wake on Wireless LAN */
860 /************************/
862 #ifdef CONFIG_ATH9K_WOW
863 void ath9k_init_wow(struct ieee80211_hw *hw);
864 void ath9k_deinit_wow(struct ieee80211_hw *hw);
865 int ath9k_suspend(struct ieee80211_hw *hw,
866 struct cfg80211_wowlan *wowlan);
867 int ath9k_resume(struct ieee80211_hw *hw);
868 void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled);
870 static inline void ath9k_init_wow(struct ieee80211_hw *hw)
873 static inline void ath9k_deinit_wow(struct ieee80211_hw *hw)
876 static inline int ath9k_suspend(struct ieee80211_hw *hw,
877 struct cfg80211_wowlan *wowlan)
881 static inline int ath9k_resume(struct ieee80211_hw *hw)
885 static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled)
888 #endif /* CONFIG_ATH9K_WOW */
890 /*******************************/
891 /* Antenna diversity/combining */
892 /*******************************/
894 #define ATH_ANT_RX_CURRENT_SHIFT 4
895 #define ATH_ANT_RX_MAIN_SHIFT 2
896 #define ATH_ANT_RX_MASK 0x3
898 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50
899 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100
900 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200
901 #define ATH_ANT_DIV_COMB_INIT_COUNT 95
902 #define ATH_ANT_DIV_COMB_MAX_COUNT 100
903 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
904 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20
905 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
906 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
908 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
909 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
910 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
912 struct ath_ant_comb {
932 enum ath9k_ant_div_comb_lna_conf main_conf;
933 enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf;
934 enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf;
937 unsigned long scan_start_time;
940 * Card-specific config values.
946 void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
948 /********************/
949 /* Main driver core */
950 /********************/
952 #define ATH9K_PCI_CUS198 0x0001
953 #define ATH9K_PCI_CUS230 0x0002
954 #define ATH9K_PCI_CUS217 0x0004
955 #define ATH9K_PCI_CUS252 0x0008
956 #define ATH9K_PCI_WOW 0x0010
957 #define ATH9K_PCI_BT_ANT_DIV 0x0020
958 #define ATH9K_PCI_D3_L1_WAR 0x0040
959 #define ATH9K_PCI_AR9565_1ANT 0x0080
960 #define ATH9K_PCI_AR9565_2ANT 0x0100
961 #define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200
962 #define ATH9K_PCI_KILLER 0x0400
963 #define ATH9K_PCI_LED_ACT_HI 0x0800
966 * Default cache line size, in bytes.
967 * Used when PCI device not fully initialized by bootrom/BIOS
969 #define DEFAULT_CACHELINE 32
970 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */
971 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */
972 #define MAX_GTT_CNT 5
974 /* Powersave flags */
975 #define PS_WAIT_FOR_BEACON BIT(0)
976 #define PS_WAIT_FOR_CAB BIT(1)
977 #define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
978 #define PS_WAIT_FOR_TX_ACK BIT(3)
979 #define PS_BEACON_SYNC BIT(4)
980 #define PS_WAIT_FOR_ANI BIT(5)
982 #define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
985 struct ieee80211_hw *hw;
988 struct survey_info *cur_survey;
989 struct survey_info survey[ATH9K_NUM_CHANNELS];
991 spinlock_t intr_lock;
992 struct tasklet_struct intr_tq;
993 struct tasklet_struct bcon_tasklet;
994 struct ath_hw *sc_ah;
997 spinlock_t sc_serial_rw;
998 spinlock_t sc_pm_lock;
999 spinlock_t sc_pcu_lock;
1001 struct work_struct paprd_work;
1002 struct work_struct hw_reset_work;
1003 struct completion paprd_complete;
1004 wait_queue_head_t tx_wait;
1006 #ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
1007 struct work_struct chanctx_work;
1008 struct ath_gen_timer *p2p_ps_timer;
1009 struct ath_vif *p2p_ps_vif;
1010 struct ath_chanctx_sched sched;
1011 struct ath_offchannel offchannel;
1012 struct ath_chanctx *next_chan;
1013 struct completion go_beacon;
1014 ktime_t last_event_time;
1017 unsigned long driver_data;
1021 u32 rx_active_check_time;
1022 u32 rx_active_count;
1023 u16 ps_flags; /* PS_* */
1027 unsigned long ps_usecount;
1031 struct ath_beacon beacon;
1033 struct cfg80211_chan_def cur_chandef;
1034 struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
1035 struct ath_chanctx *cur_chan;
1036 spinlock_t chan_lock;
1038 #ifdef CONFIG_MAC80211_LEDS
1039 bool led_registered;
1041 struct led_classdev led_cdev;
1044 #ifdef CONFIG_ATH9K_DEBUGFS
1045 struct ath9k_debug debug;
1047 struct delayed_work hw_check_work;
1048 struct delayed_work hw_pll_work;
1049 struct timer_list sleep_timer;
1051 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
1052 struct ath_btcoex btcoex;
1053 struct ath_mci_coex mci_coex;
1054 struct work_struct mci_work;
1057 struct ath_descdma txsdma;
1059 struct ath_ant_comb ant_comb;
1061 struct dfs_pattern_detector *dfs_detector;
1062 u64 dfs_prev_pulse_ts;
1065 struct ath_spec_scan_priv spec_priv;
1067 struct ieee80211_vif *tx99_vif;
1068 struct sk_buff *tx99_skb;
1072 #ifdef CONFIG_ATH9K_WOW
1073 u32 wow_intr_before_sleep;
1077 #ifdef CONFIG_ATH9K_HWRNG
1078 struct hwrng rng_ops;
1080 char rng_name[sizeof("ath9k_65535")];
1088 #ifdef CONFIG_ATH9K_TX99
1089 void ath9k_tx99_init_debug(struct ath_softc *sc);
1090 int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
1091 struct ath_tx_control *txctl);
1093 static inline void ath9k_tx99_init_debug(struct ath_softc *sc)
1096 static inline int ath9k_tx99_send(struct ath_softc *sc,
1097 struct sk_buff *skb,
1098 struct ath_tx_control *txctl)
1102 #endif /* CONFIG_ATH9K_TX99 */
1104 /***************************/
1105 /* Random Number Generator */
1106 /***************************/
1107 #ifdef CONFIG_ATH9K_HWRNG
1108 void ath9k_rng_start(struct ath_softc *sc);
1109 void ath9k_rng_stop(struct ath_softc *sc);
1111 static inline void ath9k_rng_start(struct ath_softc *sc)
1115 static inline void ath9k_rng_stop(struct ath_softc *sc)
1120 static inline void ath_read_cachesize(struct ath_common *common, int *csz)
1122 common->bus_ops->read_cachesize(common, csz);
1125 void ath9k_tasklet(struct tasklet_struct *t);
1126 int ath_cabq_update(struct ath_softc *);
1127 u8 ath9k_parse_mpdudensity(u8 mpdudensity);
1128 irqreturn_t ath_isr(int irq, void *dev);
1129 int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan);
1130 void ath_cancel_work(struct ath_softc *sc);
1131 void ath_restart_work(struct ath_softc *sc);
1132 int ath9k_init_device(u16 devid, struct ath_softc *sc,
1133 const struct ath_bus_ops *bus_ops);
1134 void ath9k_deinit_device(struct ath_softc *sc);
1135 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
1136 void ath_start_rfkill_poll(struct ath_softc *sc);
1137 void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
1138 void ath9k_ps_wakeup(struct ath_softc *sc);
1139 void ath9k_ps_restore(struct ath_softc *sc);
1141 #ifdef CONFIG_ATH9K_PCI
1142 int ath_pci_init(void);
1143 void ath_pci_exit(void);
1145 static inline int ath_pci_init(void) { return 0; };
1146 static inline void ath_pci_exit(void) {};
1149 #ifdef CONFIG_ATH9K_AHB
1150 int ath_ahb_init(void);
1151 void ath_ahb_exit(void);
1153 static inline int ath_ahb_init(void) { return 0; };
1154 static inline void ath_ahb_exit(void) {};
1157 #endif /* ATH9K_H */