diff options
| -rw-r--r-- | drivers/net/wireless/ath9k/ath9k.h | 33 | ||||
| -rw-r--r-- | drivers/net/wireless/ath9k/beacon.c | 10 | ||||
| -rw-r--r-- | drivers/net/wireless/ath9k/main.c | 14 |
3 files changed, 40 insertions, 17 deletions
diff --git a/drivers/net/wireless/ath9k/ath9k.h b/drivers/net/wireless/ath9k/ath9k.h index 0769a252dfe..4c1da716e6d 100644 --- a/drivers/net/wireless/ath9k/ath9k.h +++ b/drivers/net/wireless/ath9k/ath9k.h @@ -542,22 +542,23 @@ struct ath_rfkill { #define ATH_RSSI_DUMMY_MARKER 0x127 #define ATH_RATE_DUMMY_MARKER 0 -#define SC_OP_INVALID BIT(0) -#define SC_OP_BEACONS BIT(1) -#define SC_OP_RXAGGR BIT(2) -#define SC_OP_TXAGGR BIT(3) -#define SC_OP_CHAINMASK_UPDATE BIT(4) -#define SC_OP_FULL_RESET BIT(5) -#define SC_OP_PREAMBLE_SHORT BIT(6) -#define SC_OP_PROTECT_ENABLE BIT(7) -#define SC_OP_RXFLUSH BIT(8) -#define SC_OP_LED_ASSOCIATED BIT(9) -#define SC_OP_RFKILL_REGISTERED BIT(10) -#define SC_OP_RFKILL_SW_BLOCKED BIT(11) -#define SC_OP_RFKILL_HW_BLOCKED BIT(12) -#define SC_OP_WAIT_FOR_BEACON BIT(13) -#define SC_OP_LED_ON BIT(14) -#define SC_OP_SCANNING BIT(15) +#define SC_OP_INVALID BIT(0) +#define SC_OP_BEACONS BIT(1) +#define SC_OP_RXAGGR BIT(2) +#define SC_OP_TXAGGR BIT(3) +#define SC_OP_CHAINMASK_UPDATE BIT(4) +#define SC_OP_FULL_RESET BIT(5) +#define SC_OP_PREAMBLE_SHORT BIT(6) +#define SC_OP_PROTECT_ENABLE BIT(7) +#define SC_OP_RXFLUSH BIT(8) +#define SC_OP_LED_ASSOCIATED BIT(9) +#define SC_OP_RFKILL_REGISTERED BIT(10) +#define SC_OP_RFKILL_SW_BLOCKED BIT(11) +#define SC_OP_RFKILL_HW_BLOCKED BIT(12) +#define SC_OP_WAIT_FOR_BEACON BIT(13) +#define SC_OP_LED_ON BIT(14) +#define SC_OP_SCANNING BIT(15) +#define SC_OP_TSF_RESET BIT(16) struct ath_bus_ops { void (*read_cachesize)(struct ath_softc *sc, int *csz); diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c index 74916431f57..d1365726d2f 100644 --- a/drivers/net/wireless/ath9k/beacon.c +++ b/drivers/net/wireless/ath9k/beacon.c @@ -510,6 +510,11 @@ static void ath_beacon_config_ap(struct ath_softc *sc, { u32 nexttbtt, intval; + /* Configure the timers only when the TSF has to be reset */ + + if (!(sc->sc_flags & SC_OP_TSF_RESET)) + return; + /* NB: the beacon interval is kept internally in TU's */ intval = conf->beacon_interval & ATH9K_BEACON_PERIOD; intval /= ATH_BCBUF; /* for staggered beacons */ @@ -530,6 +535,11 @@ static void ath_beacon_config_ap(struct ath_softc *sc, ath9k_hw_beaconinit(sc->sc_ah, nexttbtt, intval); sc->beacon.bmisscnt = 0; ath9k_hw_set_interrupts(sc->sc_ah, sc->imask); + + /* Clear the reset TSF flag, so that subsequent beacon updation + will not reset the HW TSF. */ + + sc->sc_flags &= ~SC_OP_TSF_RESET; } /* diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 9e8f954877c..a25dcf949f3 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -2168,8 +2168,10 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, avp->av_opmode = ic_opmode; avp->av_bslot = -1; - if (ic_opmode == NL80211_IFTYPE_AP) + if (ic_opmode == NL80211_IFTYPE_AP) { ath9k_hw_set_tsfadjust(sc->sc_ah, 1); + sc->sc_flags |= SC_OP_TSF_RESET; + } sc->vifs[0] = conf->vif; sc->nvifs++; @@ -2291,6 +2293,16 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) if (changed & IEEE80211_CONF_CHANGE_POWER) sc->config.txpowlimit = 2 * conf->power_level; + /* + * The HW TSF has to be reset when the beacon interval changes. + * We set the flag here, and ath_beacon_config_ap() would take this + * into account when it gets called through the subsequent + * config_interface() call - with IFCC_BEACON in the changed field. + */ + + if (changed & IEEE80211_CONF_CHANGE_BEACON_INTERVAL) + sc->sc_flags |= SC_OP_TSF_RESET; + mutex_unlock(&sc->mutex); return 0; |