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kernel/drivers/net/wireless/ath/ath9k/ath9k.h

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/*
* 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 <linux/etherdevice.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/kstrtox.h>
#include <linux/leds.h>
#include <linux/completion.h>
#include <linux/time.h>
#include <linux/hw_random.h>
#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;
extern int ath9k_use_msi;
/*************************/
/* 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<<i))
/* increment with wrap-around */
#define INCR(_l, _sz) do { \
(_l)++; \
(_l) &= ((_sz) - 1); \
} while (0)
#define ATH_RXBUF 512
#define ATH_TXBUF 512
#define ATH_TXBUF_RESERVE 5
#define ATH_TXMAXTRY 13
#define ATH_MAX_SW_RETRIES 30
#define TID_TO_WME_AC(_tid) \
((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \
(((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \
(((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \
IEEE80211_AC_VO)
#define ATH_AGGR_DELIM_SZ 4
#define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */
/* number of delimiters for encryption padding */
#define ATH_AGGR_ENCRYPTDELIM 10
/* minimum h/w qdepth to be sustained to maximize aggregation */
#define ATH_AGGR_MIN_QDEPTH 2
/* minimum h/w qdepth for non-aggregated traffic */
#define ATH_NON_AGGR_MIN_QDEPTH 8
#define ATH_HW_CHECK_POLL_INT 1000
#define ATH_TXFIFO_DEPTH 8
#define ATH_TX_ERROR 0x01
/* Stop tx traffic 1ms before the GO goes away */
#define ATH_P2P_PS_STOP_TIME 1000
#define IEEE80211_SEQ_SEQ_SHIFT 4
#define IEEE80211_SEQ_MAX 4096
#define IEEE80211_WEP_IVLEN 3
#define IEEE80211_WEP_KIDLEN 1
#define IEEE80211_WEP_CRCLEN 4
#define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \
(IEEE80211_WEP_IVLEN + \
IEEE80211_WEP_KIDLEN + \
IEEE80211_WEP_CRCLEN))
/* return whether a bit at index _n in bitmap _bm is set
* _sz is the size of the bitmap */
#define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \
((_bm)[(_n) >> 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 : 6;
u8 dyn_smps : 1;
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;
};
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;
#ifdef CONFIG_ATH9K_STATION_STATISTICS
struct ath_rx_rate_stats rx_rate_stats;
#endif
u8 key_idx[4];
int 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 timespec64 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 CONFIG_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 /* CONFIG_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 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(struct tasklet_struct *t);
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(struct timer_list *t);
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(struct timer_list *t);
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 CONFIG_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 /* CONFIG_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 CONFIG_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 CONFIG_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 /* CONFIG_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 */
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 CONFIG_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 timespec64 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;
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 CONFIG_MAC80211_LEDS
bool led_registered;
char led_name[32];
struct led_classdev led_cdev;
#endif
#ifdef CONFIG_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 CONFIG_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 CONFIG_ATH9K_WOW
u32 wow_intr_before_sleep;
bool force_wow;
#endif
#ifdef CONFIG_ATH9K_HWRNG
struct hwrng rng_ops;
u32 rng_last;
char rng_name[sizeof("ath9k_65535")];
#endif
};
/********/
/* TX99 */
/********/
#ifdef CONFIG_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 /* CONFIG_ATH9K_TX99 */
/***************************/
/* Random Number Generator */
/***************************/
#ifdef CONFIG_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(struct tasklet_struct *t);
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);
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 CONFIG_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 CONFIG_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 */
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