From 4ed15762dce67192d4662860470a8be1f6d5fd53 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 14 Dec 2013 18:03:44 +0100 Subject: [PATCH] ath9k_hw: clean up station beacon timer API Remove unused fields, pass timer info in usec instead of TU. Preparation for fixing nexttbtt calculation Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 38 ++++++------------ .../net/wireless/ath/ath9k/htc_drv_beacon.c | 39 ++++++------------- drivers/net/wireless/ath/ath9k/hw.c | 18 ++++----- drivers/net/wireless/ath/ath9k/hw.h | 6 +-- 4 files changed, 31 insertions(+), 70 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 17be35392bb4..5128856d77d2 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -476,10 +476,9 @@ static void ath9k_beacon_config_sta(struct ath_softc *sc, struct ath_common *common = ath9k_hw_common(ah); struct ath9k_beacon_state bs; int dtimperiod, dtimcount, sleepduration; - int cfpperiod, cfpcount; u32 nexttbtt = 0, intval, tsftu; u64 tsf; - int num_beacons, offset, dtim_dec_count, cfp_dec_count; + int num_beacons, offset, dtim_dec_count; /* No need to configure beacon if we are not associated */ if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags)) { @@ -492,21 +491,19 @@ static void ath9k_beacon_config_sta(struct ath_softc *sc, intval = conf->beacon_interval; /* - * Setup dtim and cfp parameters according to + * Setup dtim parameters according to * last beacon we received (which may be none). */ dtimperiod = conf->dtim_period; dtimcount = conf->dtim_count; if (dtimcount >= dtimperiod) /* NB: sanity check */ dtimcount = 0; - cfpperiod = 1; /* NB: no PCF support yet */ - cfpcount = 0; sleepduration = conf->listen_interval * intval; /* * Pull nexttbtt forward to reflect the current - * TSF and calculate dtim+cfp state for the result. + * TSF and calculate dtim state for the result. */ tsf = ath9k_hw_gettsf64(ah); tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE; @@ -519,26 +516,14 @@ static void ath9k_beacon_config_sta(struct ath_softc *sc, /* DTIM Beacon every dtimperiod Beacon */ dtim_dec_count = num_beacons % dtimperiod; - /* CFP every cfpperiod DTIM Beacon */ - cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod; - if (dtim_dec_count) - cfp_dec_count++; - dtimcount -= dtim_dec_count; if (dtimcount < 0) dtimcount += dtimperiod; - cfpcount -= cfp_dec_count; - if (cfpcount < 0) - cfpcount += cfpperiod; - - bs.bs_intval = intval; - bs.bs_nexttbtt = nexttbtt; - bs.bs_dtimperiod = dtimperiod*intval; - bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval; - bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod; - bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod; - bs.bs_cfpmaxduration = 0; + bs.bs_intval = TU_TO_USEC(intval); + bs.bs_nexttbtt = TU_TO_USEC(nexttbtt); + bs.bs_dtimperiod = dtimperiod * bs.bs_intval; + bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount * bs.bs_intval; /* * Calculate the number of consecutive beacons to miss* before taking @@ -566,7 +551,8 @@ static void ath9k_beacon_config_sta(struct ath_softc *sc, * XXX fixed at 100ms */ - bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration); + bs.bs_sleepduration = TU_TO_USEC(roundup(IEEE80211_MS_TO_TU(100), + sleepduration)); if (bs.bs_sleepduration > bs.bs_dtimperiod) bs.bs_sleepduration = bs.bs_dtimperiod; @@ -574,10 +560,8 @@ static void ath9k_beacon_config_sta(struct ath_softc *sc, bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD; ath_dbg(common, BEACON, "tsf: %llu tsftu: %u\n", tsf, tsftu); - ath_dbg(common, BEACON, - "bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n", - bs.bs_bmissthreshold, bs.bs_sleepduration, - bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext); + ath_dbg(common, BEACON, "bmiss: %u sleep: %u\n", + bs.bs_bmissthreshold, bs.bs_sleepduration); /* Set the computed STA beacon timers */ diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c index e0c03bd64182..8b5757734596 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c @@ -70,11 +70,11 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, struct ath9k_beacon_state bs; enum ath9k_int imask = 0; int dtimperiod, dtimcount, sleepduration; - int cfpperiod, cfpcount, bmiss_timeout; + int bmiss_timeout; u32 nexttbtt = 0, intval, tsftu; __be32 htc_imask = 0; u64 tsf; - int num_beacons, offset, dtim_dec_count, cfp_dec_count; + int num_beacons, offset, dtim_dec_count; int ret __attribute__ ((unused)); u8 cmd_rsp; @@ -84,7 +84,7 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_interval); /* - * Setup dtim and cfp parameters according to + * Setup dtim parameters according to * last beacon we received (which may be none). */ dtimperiod = bss_conf->dtim_period; @@ -93,8 +93,6 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, dtimcount = 1; if (dtimcount >= dtimperiod) /* NB: sanity check */ dtimcount = 0; - cfpperiod = 1; /* NB: no PCF support yet */ - cfpcount = 0; sleepduration = intval; if (sleepduration <= 0) @@ -102,7 +100,7 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, /* * Pull nexttbtt forward to reflect the current - * TSF and calculate dtim+cfp state for the result. + * TSF and calculate dtim state for the result. */ tsf = ath9k_hw_gettsf64(priv->ah); tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE; @@ -115,26 +113,14 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, /* DTIM Beacon every dtimperiod Beacon */ dtim_dec_count = num_beacons % dtimperiod; - /* CFP every cfpperiod DTIM Beacon */ - cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod; - if (dtim_dec_count) - cfp_dec_count++; - dtimcount -= dtim_dec_count; if (dtimcount < 0) dtimcount += dtimperiod; - cfpcount -= cfp_dec_count; - if (cfpcount < 0) - cfpcount += cfpperiod; - - bs.bs_intval = intval; - bs.bs_nexttbtt = nexttbtt; - bs.bs_dtimperiod = dtimperiod*intval; - bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval; - bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod; - bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod; - bs.bs_cfpmaxduration = 0; + bs.bs_intval = TU_TO_USEC(intval); + bs.bs_nexttbtt = TU_TO_USEC(nexttbtt); + bs.bs_dtimperiod = dtimperiod * bs.bs_intval; + bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount * bs.bs_intval; /* * Calculate the number of consecutive beacons to miss* before taking @@ -161,7 +147,8 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, * XXX fixed at 100ms */ - bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration); + bs.bs_sleepduration = TU_TO_USEC(roundup(IEEE80211_MS_TO_TU(100), + sleepduration)); if (bs.bs_sleepduration > bs.bs_dtimperiod) bs.bs_sleepduration = bs.bs_dtimperiod; @@ -170,10 +157,8 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv, ath_dbg(common, CONFIG, "intval: %u tsf: %llu tsftu: %u\n", intval, tsf, tsftu); - ath_dbg(common, CONFIG, - "bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n", - bs.bs_bmissthreshold, bs.bs_sleepduration, - bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext); + ath_dbg(common, CONFIG, "bmiss: %u sleep: %u\n", + bs.bs_bmissthreshold, bs.bs_sleepduration); /* Set the computed STA beacon timers */ diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 073346abc3f0..2318bb90cd63 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2292,12 +2292,9 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, ENABLE_REGWRITE_BUFFER(ah); - REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(bs->bs_nexttbtt)); - - REG_WRITE(ah, AR_BEACON_PERIOD, - TU_TO_USEC(bs->bs_intval)); - REG_WRITE(ah, AR_DMA_BEACON_PERIOD, - TU_TO_USEC(bs->bs_intval)); + REG_WRITE(ah, AR_NEXT_TBTT_TIMER, bs->bs_nexttbtt); + REG_WRITE(ah, AR_BEACON_PERIOD, bs->bs_intval); + REG_WRITE(ah, AR_DMA_BEACON_PERIOD, bs->bs_intval); REGWRITE_BUFFER_FLUSH(ah); @@ -2325,9 +2322,8 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, ENABLE_REGWRITE_BUFFER(ah); - REG_WRITE(ah, AR_NEXT_DTIM, - TU_TO_USEC(bs->bs_nextdtim - SLEEP_SLOP)); - REG_WRITE(ah, AR_NEXT_TIM, TU_TO_USEC(nextTbtt - SLEEP_SLOP)); + REG_WRITE(ah, AR_NEXT_DTIM, bs->bs_nextdtim - SLEEP_SLOP); + REG_WRITE(ah, AR_NEXT_TIM, nextTbtt - SLEEP_SLOP); REG_WRITE(ah, AR_SLEEP1, SM((CAB_TIMEOUT_VAL << 3), AR_SLEEP1_CAB_TIMEOUT) @@ -2341,8 +2337,8 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah, REG_WRITE(ah, AR_SLEEP2, SM(beacontimeout, AR_SLEEP2_BEACON_TIMEOUT)); - REG_WRITE(ah, AR_TIM_PERIOD, TU_TO_USEC(beaconintval)); - REG_WRITE(ah, AR_DTIM_PERIOD, TU_TO_USEC(dtimperiod)); + REG_WRITE(ah, AR_TIM_PERIOD, beaconintval); + REG_WRITE(ah, AR_DTIM_PERIOD, dtimperiod); REGWRITE_BUFFER_FLUSH(ah); diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 4e3b73b62939..54932d8b5edd 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -168,7 +168,7 @@ #define CAB_TIMEOUT_VAL 10 #define BEACON_TIMEOUT_VAL 10 #define MIN_BEACON_TIMEOUT_VAL 1 -#define SLEEP_SLOP 3 +#define SLEEP_SLOP TU_TO_USEC(3) #define INIT_CONFIG_STATUS 0x00000000 #define INIT_RSSI_THR 0x00000700 @@ -451,10 +451,6 @@ struct ath9k_beacon_state { u32 bs_intval; #define ATH9K_TSFOOR_THRESHOLD 0x00004240 /* 16k us */ u32 bs_dtimperiod; - u16 bs_cfpperiod; - u16 bs_cfpmaxduration; - u32 bs_cfpnext; - u16 bs_timoffset; u16 bs_bmissthreshold; u32 bs_sleepduration; u32 bs_tsfoor_threshold; -- 2.39.5