From 52409fae3e4b8d16b68b61902fc09075cd97b75d Mon Sep 17 00:00:00 2001 From: Dominik Sliwa Date: Sun, 2 Jul 2017 16:41:37 +0200 Subject: Backports generated from 4.11 kernel Initial commit. Signed-off-by: Dominik Sliwa --- drivers/net/wireless/ath/ath9k/ath9k.h | 1167 ++++++++++++++++++++++++++++++++ 1 file changed, 1167 insertions(+) create mode 100644 drivers/net/wireless/ath/ath9k/ath9k.h (limited to 'drivers/net/wireless/ath/ath9k/ath9k.h') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h new file mode 100644 index 0000000..a2f92e1 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -0,0 +1,1167 @@ +/* + * Copyright (c) 2008-2011 Atheros Communications Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef ATH9K_H +#define ATH9K_H + +#include +#include +#include +#include +#include +#include +#include + +#include "common.h" +#include "debug.h" +#include "mci.h" +#include "dfs.h" + +struct ath_node; +struct ath_vif; + +extern struct ieee80211_ops ath9k_ops; +extern int ath9k_modparam_nohwcrypt; +extern int ath9k_led_blink; +extern bool is_ath9k_unloaded; +extern int ath9k_use_chanctx; + +/*************************/ +/* Descriptor Management */ +/*************************/ + +#define ATH_TXSTATUS_RING_SIZE 512 + +/* Macro to expand scalars to 64-bit objects */ +#define ito64(x) (sizeof(x) == 1) ? \ + (((unsigned long long int)(x)) & (0xff)) : \ + (sizeof(x) == 2) ? \ + (((unsigned long long int)(x)) & 0xffff) : \ + ((sizeof(x) == 4) ? \ + (((unsigned long long int)(x)) & 0xffffffff) : \ + (unsigned long long int)(x)) + +#define ATH_TXBUF_RESET(_bf) do { \ + (_bf)->bf_lastbf = NULL; \ + (_bf)->bf_next = NULL; \ + memset(&((_bf)->bf_state), 0, \ + sizeof(struct ath_buf_state)); \ + } while (0) + +#define DS2PHYS(_dd, _ds) \ + ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) +#define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) +#define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) + +struct ath_descdma { + void *dd_desc; + dma_addr_t dd_desc_paddr; + u32 dd_desc_len; +}; + +int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, + struct list_head *head, const char *name, + int nbuf, int ndesc, bool is_tx); + +/***********/ +/* RX / TX */ +/***********/ + +#define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<> 5] & (1 << ((_n) & 31)))) + +/* return block-ack bitmap index given sequence and starting sequence */ +#define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1)) + +/* return the seqno for _start + _offset */ +#define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1)) + +/* returns delimiter padding required given the packet length */ +#define ATH_AGGR_GET_NDELIM(_len) \ + (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \ + DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ)) + +#define BAW_WITHIN(_start, _bawsz, _seqno) \ + ((((_seqno) - (_start)) & 4095) < (_bawsz)) + +#define ATH_AN_2_TID(_an, _tidno) ath_node_to_tid(_an, _tidno) + +#define IS_HT_RATE(rate) (rate & 0x80) +#define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e)) +#define IS_OFDM_RATE(rate) ((rate >= 0x8) && (rate <= 0xf)) + +enum { + WLAN_RC_PHY_OFDM, + WLAN_RC_PHY_CCK, +}; + +struct ath_txq { + int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */ + u32 axq_qnum; /* ath9k hardware queue number */ + void *axq_link; + struct list_head axq_q; + spinlock_t axq_lock; + u32 axq_depth; + u32 axq_ampdu_depth; + bool axq_tx_inprogress; + struct list_head txq_fifo[ATH_TXFIFO_DEPTH]; + u8 txq_headidx; + u8 txq_tailidx; + int pending_frames; + struct sk_buff_head complete_q; +}; + +struct ath_frame_info { + struct ath_buf *bf; + u16 framelen; + s8 txq; + u8 keyix; + u8 rtscts_rate; + u8 retries : 7; + u8 baw_tracked : 1; + u8 tx_power; + enum ath9k_key_type keytype:2; +}; + +struct ath_rxbuf { + struct list_head list; + struct sk_buff *bf_mpdu; + void *bf_desc; + dma_addr_t bf_daddr; + dma_addr_t bf_buf_addr; +}; + +/** + * enum buffer_type - Buffer type flags + * + * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX) + * @BUF_AGGR: Indicates whether the buffer can be aggregated + * (used in aggregation scheduling) + */ +enum buffer_type { + BUF_AMPDU = BIT(0), + BUF_AGGR = BIT(1), +}; + +#define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU) +#define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR) + +struct ath_buf_state { + u8 bf_type; + u8 bfs_paprd; + u8 ndelim; + bool stale; + u16 seqno; + unsigned long bfs_paprd_timestamp; +}; + +struct ath_buf { + struct list_head list; + struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or + an aggregate) */ + struct ath_buf *bf_next; /* next subframe in the aggregate */ + struct sk_buff *bf_mpdu; /* enclosing frame structure */ + void *bf_desc; /* virtual addr of desc */ + dma_addr_t bf_daddr; /* physical addr of desc */ + dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */ + struct ieee80211_tx_rate rates[4]; + struct ath_buf_state bf_state; +}; + +struct ath_atx_tid { + struct list_head list; + struct sk_buff_head retry_q; + struct ath_node *an; + struct ath_txq *txq; + unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)]; + u16 seq_start; + u16 seq_next; + u16 baw_size; + u8 tidno; + int baw_head; /* first un-acked tx buffer */ + int baw_tail; /* next unused tx buffer slot */ + + s8 bar_index; + bool active; + bool clear_ps_filter; + bool has_queued; +}; + +void __ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid); +void ath_tx_queue_tid(struct ath_softc *sc, struct ath_atx_tid *tid); + +struct ath_node { + struct ath_softc *sc; + struct ieee80211_sta *sta; /* station struct we're part of */ + struct ieee80211_vif *vif; /* interface with which we're associated */ + + u16 maxampdu; + u8 mpdudensity; + s8 ps_key; + + bool sleeping; + bool no_ps_filter; + s64 airtime_deficit[IEEE80211_NUM_ACS]; + u32 airtime_rx_start; + +#ifdef CPTCFG_ATH9K_STATION_STATISTICS + struct ath_rx_rate_stats rx_rate_stats; + struct ath_airtime_stats airtime_stats; +#endif + u8 key_idx[4]; + + u32 ackto; + struct list_head list; +}; + +struct ath_tx_control { + struct ath_txq *txq; + struct ath_node *an; + struct ieee80211_sta *sta; + u8 paprd; +}; + + +/** + * @txq_map: Index is mac80211 queue number. This is + * not necessarily the same as the hardware queue number + * (axq_qnum). + */ +struct ath_tx { + u32 txqsetup; + spinlock_t txbuflock; + struct list_head txbuf; + struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; + struct ath_descdma txdma; + struct ath_txq *txq_map[IEEE80211_NUM_ACS]; + struct ath_txq *uapsdq; + u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32]; +}; + +struct ath_rx_edma { + struct sk_buff_head rx_fifo; + u32 rx_fifo_hwsize; +}; + +struct ath_rx { + u8 defant; + u8 rxotherant; + bool discard_next; + u32 *rxlink; + u32 num_pkts; + struct list_head rxbuf; + struct ath_descdma rxdma; + struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX]; + + struct ath_rxbuf *buf_hold; + struct sk_buff *frag; + + u32 ampdu_ref; +}; + +/*******************/ +/* Channel Context */ +/*******************/ + +struct ath_acq { + struct list_head acq_new; + struct list_head acq_old; + spinlock_t lock; +}; + +struct ath_chanctx { + struct cfg80211_chan_def chandef; + struct list_head vifs; + struct ath_acq acq[IEEE80211_NUM_ACS]; + int hw_queue_base; + + /* do not dereference, use for comparison only */ + struct ieee80211_vif *primary_sta; + + struct ath_beacon_config beacon; + struct ath9k_hw_cal_data caldata; + struct timespec tsf_ts; + u64 tsf_val; + u32 last_beacon; + + int flush_timeout; + u16 txpower; + u16 cur_txpower; + bool offchannel; + bool stopped; + bool active; + bool assigned; + bool switch_after_beacon; + + short nvifs; + short nvifs_assigned; + unsigned int rxfilter; +}; + +enum ath_chanctx_event { + ATH_CHANCTX_EVENT_BEACON_PREPARE, + ATH_CHANCTX_EVENT_BEACON_SENT, + ATH_CHANCTX_EVENT_TSF_TIMER, + ATH_CHANCTX_EVENT_BEACON_RECEIVED, + ATH_CHANCTX_EVENT_AUTHORIZED, + ATH_CHANCTX_EVENT_SWITCH, + ATH_CHANCTX_EVENT_ASSIGN, + ATH_CHANCTX_EVENT_UNASSIGN, + ATH_CHANCTX_EVENT_CHANGE, + ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL, +}; + +enum ath_chanctx_state { + ATH_CHANCTX_STATE_IDLE, + ATH_CHANCTX_STATE_WAIT_FOR_BEACON, + ATH_CHANCTX_STATE_WAIT_FOR_TIMER, + ATH_CHANCTX_STATE_SWITCH, + ATH_CHANCTX_STATE_FORCE_ACTIVE, +}; + +struct ath_chanctx_sched { + bool beacon_pending; + bool beacon_adjust; + bool offchannel_pending; + bool wait_switch; + bool force_noa_update; + bool extend_absence; + bool mgd_prepare_tx; + enum ath_chanctx_state state; + u8 beacon_miss; + + u32 next_tbtt; + u32 switch_start_time; + unsigned int offchannel_duration; + unsigned int channel_switch_time; + + /* backup, in case the hardware timer fails */ + struct timer_list timer; +}; + +enum ath_offchannel_state { + ATH_OFFCHANNEL_IDLE, + ATH_OFFCHANNEL_PROBE_SEND, + ATH_OFFCHANNEL_PROBE_WAIT, + ATH_OFFCHANNEL_SUSPEND, + ATH_OFFCHANNEL_ROC_START, + ATH_OFFCHANNEL_ROC_WAIT, + ATH_OFFCHANNEL_ROC_DONE, +}; + +enum ath_roc_complete_reason { + ATH_ROC_COMPLETE_EXPIRE, + ATH_ROC_COMPLETE_ABORT, + ATH_ROC_COMPLETE_CANCEL, +}; + +struct ath_offchannel { + struct ath_chanctx chan; + struct timer_list timer; + struct cfg80211_scan_request *scan_req; + struct ieee80211_vif *scan_vif; + int scan_idx; + enum ath_offchannel_state state; + struct ieee80211_channel *roc_chan; + struct ieee80211_vif *roc_vif; + int roc_duration; + int duration; +}; + +static inline struct ath_atx_tid * +ath_node_to_tid(struct ath_node *an, u8 tidno) +{ + struct ieee80211_sta *sta = an->sta; + struct ieee80211_vif *vif = an->vif; + struct ieee80211_txq *txq; + + BUG_ON(!vif); + if (sta) + txq = sta->txq[tidno % ARRAY_SIZE(sta->txq)]; + else + txq = vif->txq; + + return (struct ath_atx_tid *) txq->drv_priv; +} + +#define case_rtn_string(val) case val: return #val + +#define ath_for_each_chanctx(_sc, _ctx) \ + for (ctx = &sc->chanctx[0]; \ + ctx <= &sc->chanctx[ARRAY_SIZE(sc->chanctx) - 1]; \ + ctx++) + +void ath_chanctx_init(struct ath_softc *sc); +void ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx, + struct cfg80211_chan_def *chandef); + +#ifdef CPTCFG_ATH9K_CHANNEL_CONTEXT + +static inline struct ath_chanctx * +ath_chanctx_get(struct ieee80211_chanctx_conf *ctx) +{ + struct ath_chanctx **ptr = (void *) ctx->drv_priv; + return *ptr; +} + +bool ath9k_is_chanctx_enabled(void); +void ath9k_fill_chanctx_ops(void); +void ath9k_init_channel_context(struct ath_softc *sc); +void ath9k_offchannel_init(struct ath_softc *sc); +void ath9k_deinit_channel_context(struct ath_softc *sc); +int ath9k_init_p2p(struct ath_softc *sc); +void ath9k_deinit_p2p(struct ath_softc *sc); +void ath9k_p2p_remove_vif(struct ath_softc *sc, + struct ieee80211_vif *vif); +void ath9k_p2p_beacon_sync(struct ath_softc *sc); +void ath9k_p2p_bss_info_changed(struct ath_softc *sc, + struct ieee80211_vif *vif); +void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp, + struct sk_buff *skb); +void ath9k_p2p_ps_timer(void *priv); +void ath9k_chanctx_wake_queues(struct ath_softc *sc, struct ath_chanctx *ctx); +void ath9k_chanctx_stop_queues(struct ath_softc *sc, struct ath_chanctx *ctx); +void ath_chanctx_check_active(struct ath_softc *sc, struct ath_chanctx *ctx); + +void ath_chanctx_beacon_recv_ev(struct ath_softc *sc, + enum ath_chanctx_event ev); +void ath_chanctx_beacon_sent_ev(struct ath_softc *sc, + enum ath_chanctx_event ev); +void ath_chanctx_event(struct ath_softc *sc, struct ieee80211_vif *vif, + enum ath_chanctx_event ev); +void ath_chanctx_set_next(struct ath_softc *sc, bool force); +void ath_offchannel_next(struct ath_softc *sc); +void ath_scan_complete(struct ath_softc *sc, bool abort); +void ath_roc_complete(struct ath_softc *sc, + enum ath_roc_complete_reason reason); +struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc); + +#else + +static inline bool ath9k_is_chanctx_enabled(void) +{ + return false; +} +static inline void ath9k_fill_chanctx_ops(void) +{ +} +static inline void ath9k_init_channel_context(struct ath_softc *sc) +{ +} +static inline void ath9k_offchannel_init(struct ath_softc *sc) +{ +} +static inline void ath9k_deinit_channel_context(struct ath_softc *sc) +{ +} +static inline void ath_chanctx_beacon_recv_ev(struct ath_softc *sc, + enum ath_chanctx_event ev) +{ +} +static inline void ath_chanctx_beacon_sent_ev(struct ath_softc *sc, + enum ath_chanctx_event ev) +{ +} +static inline void ath_chanctx_event(struct ath_softc *sc, + struct ieee80211_vif *vif, + enum ath_chanctx_event ev) +{ +} +static inline int ath9k_init_p2p(struct ath_softc *sc) +{ + return 0; +} +static inline void ath9k_deinit_p2p(struct ath_softc *sc) +{ +} +static inline void ath9k_p2p_remove_vif(struct ath_softc *sc, + struct ieee80211_vif *vif) +{ +} +static inline void ath9k_p2p_beacon_sync(struct ath_softc *sc) +{ +} +static inline void ath9k_p2p_bss_info_changed(struct ath_softc *sc, + struct ieee80211_vif *vif) +{ +} +static inline void ath9k_beacon_add_noa(struct ath_softc *sc, struct ath_vif *avp, + struct sk_buff *skb) +{ +} +static inline void ath9k_p2p_ps_timer(struct ath_softc *sc) +{ +} +static inline void ath9k_chanctx_wake_queues(struct ath_softc *sc, + struct ath_chanctx *ctx) +{ +} +static inline void ath9k_chanctx_stop_queues(struct ath_softc *sc, + struct ath_chanctx *ctx) +{ +} +static inline void ath_chanctx_check_active(struct ath_softc *sc, + struct ath_chanctx *ctx) +{ +} + +#endif /* CPTCFG_ATH9K_CHANNEL_CONTEXT */ + +static inline void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq) +{ + spin_lock_bh(&txq->axq_lock); +} +static inline void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq) +{ + spin_unlock_bh(&txq->axq_lock); +} + +void ath_startrecv(struct ath_softc *sc); +bool ath_stoprecv(struct ath_softc *sc); +u32 ath_calcrxfilter(struct ath_softc *sc); +int ath_rx_init(struct ath_softc *sc, int nbufs); +void ath_rx_cleanup(struct ath_softc *sc); +int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp); +struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype); +void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq); +void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq); +bool ath_drain_all_txq(struct ath_softc *sc); +void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq); +void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an); +void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an); +void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq); +void ath_txq_schedule_all(struct ath_softc *sc); +int ath_tx_init(struct ath_softc *sc, int nbufs); +int ath_txq_update(struct ath_softc *sc, int qnum, + struct ath9k_tx_queue_info *q); +u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen, + int width, int half_gi, bool shortPreamble); +void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop); +void ath_assign_seq(struct ath_common *common, struct sk_buff *skb); +int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, + struct ath_tx_control *txctl); +void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct sk_buff *skb); +void ath_tx_tasklet(struct ath_softc *sc); +void ath_tx_edma_tasklet(struct ath_softc *sc); +int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, + u16 tid, u16 *ssn); +void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); + +void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an); +void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc, + struct ath_node *an); +void ath9k_release_buffered_frames(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + u16 tids, int nframes, + enum ieee80211_frame_release_type reason, + bool more_data); +void ath9k_wake_tx_queue(struct ieee80211_hw *hw, struct ieee80211_txq *queue); + +/********/ +/* VIFs */ +/********/ + +#define P2P_DEFAULT_CTWIN 10 + +struct ath_vif { + struct list_head list; + + u16 seq_no; + + /* BSS info */ + u8 bssid[ETH_ALEN] __aligned(2); + u16 aid; + bool assoc; + + struct ieee80211_vif *vif; + struct ath_node mcast_node; + int av_bslot; + __le64 tsf_adjust; /* TSF adjustment for staggered beacons */ + struct ath_buf *av_bcbuf; + struct ath_chanctx *chanctx; + + /* P2P Client */ + struct ieee80211_noa_data noa; + + /* P2P GO */ + u8 noa_index; + u32 offchannel_start; + u32 offchannel_duration; + + /* These are used for both periodic and one-shot */ + u32 noa_start; + u32 noa_duration; + bool periodic_noa; + bool oneshot_noa; +}; + +struct ath9k_vif_iter_data { + u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */ + u8 mask[ETH_ALEN]; /* bssid mask */ + bool has_hw_macaddr; + u8 slottime; + bool beacons; + + int naps; /* number of AP vifs */ + int nmeshes; /* number of mesh vifs */ + int nstations; /* number of station vifs */ + int nwds; /* number of WDS vifs */ + int nadhocs; /* number of adhoc vifs */ + int nocbs; /* number of OCB vifs */ + int nbcnvifs; /* number of beaconing vifs */ + struct ieee80211_vif *primary_beacon_vif; + struct ieee80211_vif *primary_sta; +}; + +void ath9k_calculate_iter_data(struct ath_softc *sc, + struct ath_chanctx *ctx, + struct ath9k_vif_iter_data *iter_data); +void ath9k_calculate_summary_state(struct ath_softc *sc, + struct ath_chanctx *ctx); +void ath9k_set_txpower(struct ath_softc *sc, struct ieee80211_vif *vif); + +/*******************/ +/* Beacon Handling */ +/*******************/ + +/* + * Regardless of the number of beacons we stagger, (i.e. regardless of the + * number of BSSIDs) if a given beacon does not go out even after waiting this + * number of beacon intervals, the game's up. + */ +#define BSTUCK_THRESH 9 +#define ATH_BCBUF 8 +#define ATH_DEFAULT_BINTVAL 100 /* TU */ +#define ATH_DEFAULT_BMISS_LIMIT 10 + +#define TSF_TO_TU(_h,_l) \ + ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) + +struct ath_beacon { + enum { + OK, /* no change needed */ + UPDATE, /* update pending */ + COMMIT /* beacon sent, commit change */ + } updateslot; /* slot time update fsm */ + + u32 beaconq; + u32 bmisscnt; + struct ieee80211_vif *bslot[ATH_BCBUF]; + int slottime; + int slotupdate; + struct ath_descdma bdma; + struct ath_txq *cabq; + struct list_head bbuf; + + bool tx_processed; + bool tx_last; +}; + +void ath9k_beacon_tasklet(unsigned long data); +void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *main_vif, + bool beacons); +void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif); +void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif); +void ath9k_beacon_ensure_primary_slot(struct ath_softc *sc); +void ath9k_set_beacon(struct ath_softc *sc); +bool ath9k_csa_is_finished(struct ath_softc *sc, struct ieee80211_vif *vif); +void ath9k_csa_update(struct ath_softc *sc); + +/*******************/ +/* Link Monitoring */ +/*******************/ + +#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */ +#define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */ +#define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */ +#define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */ +#define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */ +#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ +#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ +#define ATH_ANI_MAX_SKIP_COUNT 10 +#define ATH_PAPRD_TIMEOUT 100 /* msecs */ +#define ATH_PLL_WORK_INTERVAL 100 + +void ath_hw_check_work(struct work_struct *work); +void ath_reset_work(struct work_struct *work); +bool ath_hw_check(struct ath_softc *sc); +void ath_hw_pll_work(struct work_struct *work); +void ath_paprd_calibrate(struct work_struct *work); +void ath_ani_calibrate(unsigned long data); +void ath_start_ani(struct ath_softc *sc); +void ath_stop_ani(struct ath_softc *sc); +void ath_check_ani(struct ath_softc *sc); +int ath_update_survey_stats(struct ath_softc *sc); +void ath_update_survey_nf(struct ath_softc *sc, int channel); +void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type); +void ath_ps_full_sleep(unsigned long data); +void __ath9k_flush(struct ieee80211_hw *hw, u32 queues, bool drop, + bool sw_pending, bool timeout_override); + +/**********/ +/* BTCOEX */ +/**********/ + +#define ATH_DUMP_BTCOEX(_s, _val) \ + do { \ + len += scnprintf(buf + len, size - len, \ + "%20s : %10d\n", _s, (_val)); \ + } while (0) + +enum bt_op_flags { + BT_OP_PRIORITY_DETECTED, + BT_OP_SCAN, +}; + +struct ath_btcoex { + spinlock_t btcoex_lock; + struct timer_list period_timer; /* Timer for BT period */ + struct timer_list no_stomp_timer; + u32 bt_priority_cnt; + unsigned long bt_priority_time; + unsigned long op_flags; + int bt_stomp_type; /* Types of BT stomping */ + u32 btcoex_no_stomp; /* in msec */ + u32 btcoex_period; /* in msec */ + u32 btscan_no_stomp; /* in msec */ + u32 duty_cycle; + u32 bt_wait_time; + int rssi_count; + struct ath_mci_profile mci; + u8 stomp_audio; +}; + +#ifdef CPTCFG_ATH9K_BTCOEX_SUPPORT +int ath9k_init_btcoex(struct ath_softc *sc); +void ath9k_deinit_btcoex(struct ath_softc *sc); +void ath9k_start_btcoex(struct ath_softc *sc); +void ath9k_stop_btcoex(struct ath_softc *sc); +void ath9k_btcoex_timer_resume(struct ath_softc *sc); +void ath9k_btcoex_timer_pause(struct ath_softc *sc); +void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status); +u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen); +void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc); +int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size); +#else +static inline int ath9k_init_btcoex(struct ath_softc *sc) +{ + return 0; +} +static inline void ath9k_deinit_btcoex(struct ath_softc *sc) +{ +} +static inline void ath9k_start_btcoex(struct ath_softc *sc) +{ +} +static inline void ath9k_stop_btcoex(struct ath_softc *sc) +{ +} +static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, + u32 status) +{ +} +static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, + u32 max_4ms_framelen) +{ + return 0; +} +static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc) +{ +} +static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size) +{ + return 0; +} +#endif /* CPTCFG_ATH9K_BTCOEX_SUPPORT */ + +/********************/ +/* LED Control */ +/********************/ + +#define ATH_LED_PIN_DEF 1 +#define ATH_LED_PIN_9287 8 +#define ATH_LED_PIN_9300 10 +#define ATH_LED_PIN_9485 6 +#define ATH_LED_PIN_9462 4 + +#ifdef CPTCFG_MAC80211_LEDS +void ath_init_leds(struct ath_softc *sc); +void ath_deinit_leds(struct ath_softc *sc); +#else +static inline void ath_init_leds(struct ath_softc *sc) +{ +} + +static inline void ath_deinit_leds(struct ath_softc *sc) +{ +} +#endif + +/************************/ +/* Wake on Wireless LAN */ +/************************/ + +#ifdef CPTCFG_ATH9K_WOW +void ath9k_init_wow(struct ieee80211_hw *hw); +void ath9k_deinit_wow(struct ieee80211_hw *hw); +int ath9k_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan); +int ath9k_resume(struct ieee80211_hw *hw); +void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled); +#else +static inline void ath9k_init_wow(struct ieee80211_hw *hw) +{ +} +static inline void ath9k_deinit_wow(struct ieee80211_hw *hw) +{ +} +static inline int ath9k_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan) +{ + return 0; +} +static inline int ath9k_resume(struct ieee80211_hw *hw) +{ + return 0; +} +static inline void ath9k_set_wakeup(struct ieee80211_hw *hw, bool enabled) +{ +} +#endif /* CPTCFG_ATH9K_WOW */ + +/*******************************/ +/* Antenna diversity/combining */ +/*******************************/ + +#define ATH_ANT_RX_CURRENT_SHIFT 4 +#define ATH_ANT_RX_MAIN_SHIFT 2 +#define ATH_ANT_RX_MASK 0x3 + +#define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50 +#define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100 +#define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200 +#define ATH_ANT_DIV_COMB_INIT_COUNT 95 +#define ATH_ANT_DIV_COMB_MAX_COUNT 100 +#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30 +#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20 +#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50 +#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50 + +#define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4 +#define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2 +#define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2 + +struct ath_ant_comb { + u16 count; + u16 total_pkt_count; + bool scan; + bool scan_not_start; + int main_total_rssi; + int alt_total_rssi; + int alt_recv_cnt; + int main_recv_cnt; + int rssi_lna1; + int rssi_lna2; + int rssi_add; + int rssi_sub; + int rssi_first; + int rssi_second; + int rssi_third; + int ant_ratio; + int ant_ratio2; + bool alt_good; + int quick_scan_cnt; + enum ath9k_ant_div_comb_lna_conf main_conf; + enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf; + enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf; + bool first_ratio; + bool second_ratio; + unsigned long scan_start_time; + + /* + * Card-specific config values. + */ + int low_rssi_thresh; + int fast_div_bias; +}; + +void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs); + +/********************/ +/* Main driver core */ +/********************/ + +#define ATH9K_PCI_CUS198 0x0001 +#define ATH9K_PCI_CUS230 0x0002 +#define ATH9K_PCI_CUS217 0x0004 +#define ATH9K_PCI_CUS252 0x0008 +#define ATH9K_PCI_WOW 0x0010 +#define ATH9K_PCI_BT_ANT_DIV 0x0020 +#define ATH9K_PCI_D3_L1_WAR 0x0040 +#define ATH9K_PCI_AR9565_1ANT 0x0080 +#define ATH9K_PCI_AR9565_2ANT 0x0100 +#define ATH9K_PCI_NO_PLL_PWRSAVE 0x0200 +#define ATH9K_PCI_KILLER 0x0400 +#define ATH9K_PCI_LED_ACT_HI 0x0800 + +/* + * Default cache line size, in bytes. + * Used when PCI device not fully initialized by bootrom/BIOS +*/ +#define DEFAULT_CACHELINE 32 +#define ATH_CABQ_READY_TIME 80 /* % of beacon interval */ +#define ATH_TXPOWER_MAX 100 /* .5 dBm units */ +#define MAX_GTT_CNT 5 + +/* Powersave flags */ +#define PS_WAIT_FOR_BEACON BIT(0) +#define PS_WAIT_FOR_CAB BIT(1) +#define PS_WAIT_FOR_PSPOLL_DATA BIT(2) +#define PS_WAIT_FOR_TX_ACK BIT(3) +#define PS_BEACON_SYNC BIT(4) +#define PS_WAIT_FOR_ANI BIT(5) + +#define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */ + +#define AIRTIME_USE_TX BIT(0) +#define AIRTIME_USE_RX BIT(1) +#define AIRTIME_USE_NEW_QUEUES BIT(2) +#define AIRTIME_ACTIVE(flags) (!!(flags & (AIRTIME_USE_TX|AIRTIME_USE_RX))) + +struct ath_softc { + struct ieee80211_hw *hw; + struct device *dev; + + struct survey_info *cur_survey; + struct survey_info survey[ATH9K_NUM_CHANNELS]; + + spinlock_t intr_lock; + struct tasklet_struct intr_tq; + struct tasklet_struct bcon_tasklet; + struct ath_hw *sc_ah; + void __iomem *mem; + int irq; + spinlock_t sc_serial_rw; + spinlock_t sc_pm_lock; + spinlock_t sc_pcu_lock; + struct mutex mutex; + struct work_struct paprd_work; + struct work_struct hw_reset_work; + struct completion paprd_complete; + wait_queue_head_t tx_wait; + +#ifdef CPTCFG_ATH9K_CHANNEL_CONTEXT + struct work_struct chanctx_work; + struct ath_gen_timer *p2p_ps_timer; + struct ath_vif *p2p_ps_vif; + struct ath_chanctx_sched sched; + struct ath_offchannel offchannel; + struct ath_chanctx *next_chan; + struct completion go_beacon; + struct timespec last_event_time; +#endif + + unsigned long driver_data; + + u8 gtt_cnt; + u32 intrstatus; + u16 ps_flags; /* PS_* */ + bool ps_enabled; + bool ps_idle; + short nbcnvifs; + unsigned long ps_usecount; + + u16 airtime_flags; /* AIRTIME_* */ + + struct ath_rx rx; + struct ath_tx tx; + struct ath_beacon beacon; + + struct cfg80211_chan_def cur_chandef; + struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX]; + struct ath_chanctx *cur_chan; + spinlock_t chan_lock; + +#ifdef CPTCFG_MAC80211_LEDS + bool led_registered; + char led_name[32]; + struct led_classdev led_cdev; +#endif + +#ifdef CPTCFG_ATH9K_DEBUGFS + struct ath9k_debug debug; +#endif + struct delayed_work hw_check_work; + struct delayed_work hw_pll_work; + struct timer_list sleep_timer; + +#ifdef CPTCFG_ATH9K_BTCOEX_SUPPORT + struct ath_btcoex btcoex; + struct ath_mci_coex mci_coex; + struct work_struct mci_work; +#endif + + struct ath_descdma txsdma; + + struct ath_ant_comb ant_comb; + u8 ant_tx, ant_rx; + struct dfs_pattern_detector *dfs_detector; + u64 dfs_prev_pulse_ts; + u32 wow_enabled; + + struct ath_spec_scan_priv spec_priv; + + struct ieee80211_vif *tx99_vif; + struct sk_buff *tx99_skb; + bool tx99_state; + s16 tx99_power; + +#ifdef CPTCFG_ATH9K_WOW + u32 wow_intr_before_sleep; + bool force_wow; +#endif + +#ifdef CPTCFG_ATH9K_HWRNG + u32 rng_last; + struct task_struct *rng_task; +#endif +}; + +/********/ +/* TX99 */ +/********/ + +#ifdef CPTCFG_ATH9K_TX99 +void ath9k_tx99_init_debug(struct ath_softc *sc); +int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb, + struct ath_tx_control *txctl); +#else +static inline void ath9k_tx99_init_debug(struct ath_softc *sc) +{ +} +static inline int ath9k_tx99_send(struct ath_softc *sc, + struct sk_buff *skb, + struct ath_tx_control *txctl) +{ + return 0; +} +#endif /* CPTCFG_ATH9K_TX99 */ + +/***************************/ +/* Random Number Generator */ +/***************************/ +#ifdef CPTCFG_ATH9K_HWRNG +void ath9k_rng_start(struct ath_softc *sc); +void ath9k_rng_stop(struct ath_softc *sc); +#else +static inline void ath9k_rng_start(struct ath_softc *sc) +{ +} + +static inline void ath9k_rng_stop(struct ath_softc *sc) +{ +} +#endif + +static inline void ath_read_cachesize(struct ath_common *common, int *csz) +{ + common->bus_ops->read_cachesize(common, csz); +} + +void ath9k_tasklet(unsigned long data); +int ath_cabq_update(struct ath_softc *); +u8 ath9k_parse_mpdudensity(u8 mpdudensity); +irqreturn_t ath_isr(int irq, void *dev); +int ath_reset(struct ath_softc *sc, struct ath9k_channel *hchan); +void ath_cancel_work(struct ath_softc *sc); +void ath_restart_work(struct ath_softc *sc); +int ath9k_init_device(u16 devid, struct ath_softc *sc, + const struct ath_bus_ops *bus_ops); +void ath9k_deinit_device(struct ath_softc *sc); +void ath9k_reload_chainmask_settings(struct ath_softc *sc); +u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate); +void ath_start_rfkill_poll(struct ath_softc *sc); +void ath9k_rfkill_poll_state(struct ieee80211_hw *hw); +void ath9k_ps_wakeup(struct ath_softc *sc); +void ath9k_ps_restore(struct ath_softc *sc); + +#ifdef CPTCFG_ATH9K_PCI +int ath_pci_init(void); +void ath_pci_exit(void); +#else +static inline int ath_pci_init(void) { return 0; }; +static inline void ath_pci_exit(void) {}; +#endif + +#ifdef CPTCFG_ATH9K_AHB +int ath_ahb_init(void); +void ath_ahb_exit(void); +#else +static inline int ath_ahb_init(void) { return 0; }; +static inline void ath_ahb_exit(void) {}; +#endif + +#endif /* ATH9K_H */ -- cgit v1.2.3