diff options
author | Vivek Natarajan <vivek.natraj@gmail.com> | 2009-01-20 11:17:08 +0530 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-01-29 16:01:03 -0500 |
commit | 3cbb5dd73697b3f1c677daffe29f00ace22b71e9 (patch) | |
tree | 39fcb371ef37b9a2a53a4cdf72a8e98c64d9e98e /drivers/net/wireless/ath9k/main.c | |
parent | c5d0569882b9c264be31dcb0758961bfc479deea (diff) |
ath9k: Enable dynamic power save in ath9k.
This patch implements dynamic power save feature for ath9k.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k/main.c')
-rw-r--r-- | drivers/net/wireless/ath9k/main.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 8ad927a8870..b494a0d7e8b 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -237,6 +237,8 @@ static int ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan) if (sc->sc_flags & SC_OP_INVALID) return -EIO; + ath9k_ps_wakeup(sc); + /* * This is only performed if the channel settings have * actually changed. @@ -287,6 +289,7 @@ static int ath_set_channel(struct ath_softc *sc, struct ath9k_channel *hchan) ath_cache_conf_rate(sc, &hw->conf); ath_update_txpow(sc); ath9k_hw_set_interrupts(ah, sc->sc_imask); + ath9k_ps_restore(sc); return 0; } @@ -559,8 +562,10 @@ irqreturn_t ath_isr(int irq, void *dev) ATH9K_HW_CAP_AUTOSLEEP)) { /* Clear RxAbort bit so that we can * receive frames */ + ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); ath9k_hw_setrxabort(ah, 0); sched = true; + sc->sc_flags |= SC_OP_WAIT_FOR_BEACON; } } } @@ -1044,6 +1049,7 @@ static void ath_radio_enable(struct ath_softc *sc) struct ieee80211_channel *channel = sc->hw->conf.channel; int r; + ath9k_ps_wakeup(sc); spin_lock_bh(&sc->sc_resetlock); r = ath9k_hw_reset(ah, ah->ah_curchan, false); @@ -1075,6 +1081,7 @@ static void ath_radio_enable(struct ath_softc *sc) ath9k_hw_set_gpio(ah, ATH_LED_PIN, 0); ieee80211_wake_queues(sc->hw); + ath9k_ps_restore(sc); } static void ath_radio_disable(struct ath_softc *sc) @@ -1083,6 +1090,7 @@ static void ath_radio_disable(struct ath_softc *sc) struct ieee80211_channel *channel = sc->hw->conf.channel; int r; + ath9k_ps_wakeup(sc); ieee80211_stop_queues(sc->hw); /* Disable LED */ @@ -1108,6 +1116,7 @@ static void ath_radio_disable(struct ath_softc *sc) ath9k_hw_phy_disable(ah); ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP); + ath9k_ps_restore(sc); } static bool ath_is_rfkill_set(struct ath_softc *sc) @@ -1259,6 +1268,8 @@ void ath_detach(struct ath_softc *sc) struct ieee80211_hw *hw = sc->hw; int i = 0; + ath9k_ps_wakeup(sc); + DPRINTF(sc, ATH_DBG_CONFIG, "Detach ATH hw\n"); #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE) @@ -1283,6 +1294,7 @@ void ath_detach(struct ath_softc *sc) ath9k_hw_detach(sc->sc_ah); ath9k_exit_debug(sc); + ath9k_ps_restore(sc); } static int ath_init(u16 devid, struct ath_softc *sc) @@ -1526,7 +1538,9 @@ int ath_attach(u16 devid, struct ath_softc *sc) hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | IEEE80211_HW_SIGNAL_DBM | - IEEE80211_HW_AMPDU_AGGREGATION; + IEEE80211_HW_AMPDU_AGGREGATION | + IEEE80211_HW_SUPPORTS_PS | + IEEE80211_HW_PS_NULLFUNC_STACK; if (AR_SREV_9160_10_OR_LATER(sc->sc_ah)) hw->flags |= IEEE80211_HW_MFP_CAPABLE; @@ -2090,6 +2104,27 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) struct ieee80211_conf *conf = &hw->conf; mutex_lock(&sc->mutex); + if (changed & IEEE80211_CONF_CHANGE_PS) { + if (conf->flags & IEEE80211_CONF_PS) { + if ((sc->sc_imask & ATH9K_INT_TIM_TIMER) == 0) { + sc->sc_imask |= ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->sc_imask); + } + ath9k_hw_setrxabort(sc->sc_ah, 1); + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP); + } else { + ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE); + ath9k_hw_setrxabort(sc->sc_ah, 0); + sc->sc_flags &= ~SC_OP_WAIT_FOR_BEACON; + if (sc->sc_imask & ATH9K_INT_TIM_TIMER) { + sc->sc_imask &= ~ATH9K_INT_TIM_TIMER; + ath9k_hw_set_interrupts(sc->sc_ah, + sc->sc_imask); + } + } + } + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { struct ieee80211_channel *curchan = hw->conf.channel; int pos; @@ -2310,6 +2345,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw, struct ath_softc *sc = hw->priv; int ret = 0; + ath9k_ps_wakeup(sc); DPRINTF(sc, ATH_DBG_KEYCACHE, "Set HW Key\n"); switch (cmd) { @@ -2333,6 +2369,7 @@ static int ath9k_set_key(struct ieee80211_hw *hw, ret = -EINVAL; } + ath9k_ps_restore(sc); return ret; } |