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ath9k: add some fixes for radio reinit and frame flush
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28772 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
parent
a5269fb903
commit
db6dd42004
275
package/mac80211/patches/560-ath9k_fix_radio_stop.patch
Normal file
275
package/mac80211/patches/560-ath9k_fix_radio_stop.patch
Normal file
@ -0,0 +1,275 @@
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -124,14 +124,14 @@ void ath9k_ps_restore(struct ath_softc *
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!(sc->ps_flags & (PS_WAIT_FOR_BEACON |
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PS_WAIT_FOR_CAB |
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PS_WAIT_FOR_PSPOLL_DATA |
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- PS_WAIT_FOR_TX_ACK)))
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+ PS_WAIT_FOR_TX_ACK))) {
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mode = ATH9K_PM_NETWORK_SLEEP;
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- else
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- goto unlock;
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- spin_lock(&common->cc_lock);
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- ath_hw_cycle_counters_update(common);
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- spin_unlock(&common->cc_lock);
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+ spin_lock(&common->cc_lock);
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+ ath_hw_cycle_counters_update(common);
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+ spin_unlock(&common->cc_lock);
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+ } else
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+ goto unlock;
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ath9k_hw_setpower(sc->sc_ah, mode);
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@@ -880,82 +880,6 @@ chip_reset:
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#undef SCHED_INTR
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}
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-static void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw)
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-{
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- struct ath_hw *ah = sc->sc_ah;
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- struct ath_common *common = ath9k_hw_common(ah);
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- struct ieee80211_channel *channel = hw->conf.channel;
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- int r;
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-
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- ath9k_ps_wakeup(sc);
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- spin_lock_bh(&sc->sc_pcu_lock);
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- atomic_set(&ah->intr_ref_cnt, -1);
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-
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- ath9k_hw_configpcipowersave(ah, false);
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-
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- if (!ah->curchan)
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- ah->curchan = ath9k_cmn_get_curchannel(sc->hw, ah);
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-
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- r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
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- if (r) {
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- ath_err(common,
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- "Unable to reset channel (%u MHz), reset status %d\n",
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- channel->center_freq, r);
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- }
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-
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- ath_complete_reset(sc, true);
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-
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- /* Enable LED */
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- ath9k_hw_cfg_output(ah, ah->led_pin,
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- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
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- ath9k_hw_set_gpio(ah, ah->led_pin, 0);
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-
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- spin_unlock_bh(&sc->sc_pcu_lock);
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-
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- ath9k_ps_restore(sc);
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-}
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-
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-void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw)
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-{
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- struct ath_hw *ah = sc->sc_ah;
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- struct ieee80211_channel *channel = hw->conf.channel;
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- int r;
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-
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- ath9k_ps_wakeup(sc);
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-
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- ath_cancel_work(sc);
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-
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- spin_lock_bh(&sc->sc_pcu_lock);
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-
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- /*
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- * Keep the LED on when the radio is disabled
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- * during idle unassociated state.
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- */
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- if (!sc->ps_idle) {
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- ath9k_hw_set_gpio(ah, ah->led_pin, 1);
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- ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
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- }
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-
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- ath_prepare_reset(sc, false, true);
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-
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- if (!ah->curchan)
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- ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
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-
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- r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
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- if (r) {
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- ath_err(ath9k_hw_common(sc->sc_ah),
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- "Unable to reset channel (%u MHz), reset status %d\n",
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- channel->center_freq, r);
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- }
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-
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- ath9k_hw_phy_disable(ah);
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-
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- ath9k_hw_configpcipowersave(ah, true);
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-
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- spin_unlock_bh(&sc->sc_pcu_lock);
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- ath9k_ps_restore(sc);
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-}
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-
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static int ath_reset(struct ath_softc *sc, bool retry_tx)
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{
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int r;
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@@ -1091,6 +1015,9 @@ static int ath9k_start(struct ieee80211_
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* and then setup of the interrupt mask.
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*/
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spin_lock_bh(&sc->sc_pcu_lock);
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+
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+ atomic_set(&ah->intr_ref_cnt, -1);
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+
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r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
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if (r) {
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ath_err(common,
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@@ -1129,6 +1056,16 @@ static int ath9k_start(struct ieee80211_
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goto mutex_unlock;
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}
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+ ath9k_hw_cfg_output(ah, ah->led_pin,
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+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
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+ ath9k_hw_set_gpio(ah, ah->led_pin, 0);
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+
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+ /*
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+ * Reset key cache to sane defaults (all entries cleared) instead of
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+ * semi-random values after suspend/resume.
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+ */
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+ ath9k_cmn_init_crypto(sc->sc_ah);
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+
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spin_unlock_bh(&sc->sc_pcu_lock);
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if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
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@@ -1260,9 +1197,6 @@ static void ath9k_stop(struct ieee80211_
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sc->rx.frag = NULL;
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}
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- /* disable HAL and put h/w to sleep */
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- ath9k_hw_disable(ah);
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-
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spin_unlock_bh(&sc->sc_pcu_lock);
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/* we can now sync irq and kill any running tasklets, since we already
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@@ -1271,10 +1205,27 @@ static void ath9k_stop(struct ieee80211_
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tasklet_kill(&sc->intr_tq);
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tasklet_kill(&sc->bcon_tasklet);
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- ath9k_ps_restore(sc);
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-
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sc->ps_idle = true;
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- ath_radio_disable(sc, hw);
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+
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+ spin_lock_bh(&sc->sc_pcu_lock);
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+
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+ ath9k_hw_set_gpio(ah, ah->led_pin, 1);
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+ ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
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+
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+ ath_prepare_reset(sc, false, true);
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+
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+ if (!ah->curchan)
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+ ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
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+
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+ ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
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+ ath9k_hw_phy_disable(ah);
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+ ath9k_hw_disable(ah);
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+
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+ ath9k_hw_configpcipowersave(ah, true);
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+
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+ spin_unlock_bh(&sc->sc_pcu_lock);
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+
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+ ath9k_ps_restore(sc);
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sc->sc_flags |= SC_OP_INVALID;
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@@ -1598,8 +1549,8 @@ static int ath9k_config(struct ieee80211
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struct ath_hw *ah = sc->sc_ah;
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struct ath_common *common = ath9k_hw_common(ah);
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struct ieee80211_conf *conf = &hw->conf;
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- bool disable_radio = false;
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+ ath9k_ps_wakeup(sc);
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mutex_lock(&sc->mutex);
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/*
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@@ -1608,16 +1559,8 @@ static int ath9k_config(struct ieee80211
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* of the changes. Likewise we must only disable the radio towards
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* the end.
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*/
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- if (changed & IEEE80211_CONF_CHANGE_IDLE) {
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+ if (changed & IEEE80211_CONF_CHANGE_IDLE)
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sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
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- if (!sc->ps_idle) {
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- ath_radio_enable(sc, hw);
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- ath_dbg(common, ATH_DBG_CONFIG,
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- "not-idle: enabling radio\n");
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- } else {
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- disable_radio = true;
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- }
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- }
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/*
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* We just prepare to enable PS. We have to wait until our AP has
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@@ -1742,19 +1685,13 @@ static int ath9k_config(struct ieee80211
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ath_dbg(common, ATH_DBG_CONFIG,
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"Set power: %d\n", conf->power_level);
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sc->config.txpowlimit = 2 * conf->power_level;
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- ath9k_ps_wakeup(sc);
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ath9k_cmn_update_txpow(ah, sc->curtxpow,
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sc->config.txpowlimit, &sc->curtxpow);
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- ath9k_ps_restore(sc);
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conf->cur_power_level = sc->curtxpow / 2;
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}
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- if (disable_radio) {
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- ath_dbg(common, ATH_DBG_CONFIG, "idle: disabling radio\n");
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- ath_radio_disable(sc, hw);
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- }
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-
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mutex_unlock(&sc->mutex);
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+ ath9k_ps_restore(sc);
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return 0;
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}
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--- a/drivers/net/wireless/ath/ath9k/pci.c
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+++ b/drivers/net/wireless/ath/ath9k/pci.c
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@@ -302,26 +302,12 @@ static void ath_pci_remove(struct pci_de
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static int ath_pci_suspend(struct device *device)
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{
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- struct pci_dev *pdev = to_pci_dev(device);
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- struct ieee80211_hw *hw = pci_get_drvdata(pdev);
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- struct ath_softc *sc = hw->priv;
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-
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- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
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-
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- /* The device has to be moved to FULLSLEEP forcibly.
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- * Otherwise the chip never moved to full sleep,
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- * when no interface is up.
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- */
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- ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
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-
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return 0;
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}
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static int ath_pci_resume(struct device *device)
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{
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struct pci_dev *pdev = to_pci_dev(device);
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- struct ieee80211_hw *hw = pci_get_drvdata(pdev);
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- struct ath_softc *sc = hw->priv;
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u32 val;
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/*
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@@ -333,22 +319,6 @@ static int ath_pci_resume(struct device
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if ((val & 0x0000ff00) != 0)
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pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
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- ath9k_ps_wakeup(sc);
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- /* Enable LED */
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- ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin,
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- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
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- ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
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-
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- /*
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- * Reset key cache to sane defaults (all entries cleared) instead of
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- * semi-random values after suspend/resume.
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- */
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- ath9k_cmn_init_crypto(sc->sc_ah);
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- ath9k_ps_restore(sc);
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-
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- sc->ps_idle = true;
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- ath_radio_disable(sc, hw);
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-
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return 0;
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}
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45
package/mac80211/patches/561-ath9k_fix_flush.patch
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45
package/mac80211/patches/561-ath9k_fix_flush.patch
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@ -0,0 +1,45 @@
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -2259,9 +2259,6 @@ static void ath9k_flush(struct ieee80211
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return;
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}
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- if (drop)
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- timeout = 1;
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-
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for (j = 0; j < timeout; j++) {
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bool npend = false;
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@@ -2279,21 +2276,22 @@ static void ath9k_flush(struct ieee80211
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}
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if (!npend)
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- goto out;
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+ break;
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}
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- ath9k_ps_wakeup(sc);
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- spin_lock_bh(&sc->sc_pcu_lock);
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- drain_txq = ath_drain_all_txq(sc, false);
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- spin_unlock_bh(&sc->sc_pcu_lock);
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+ if (drop) {
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+ ath9k_ps_wakeup(sc);
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+ spin_lock_bh(&sc->sc_pcu_lock);
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+ drain_txq = ath_drain_all_txq(sc, false);
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+ spin_unlock_bh(&sc->sc_pcu_lock);
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- if (!drain_txq)
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- ath_reset(sc, false);
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+ if (!drain_txq)
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+ ath_reset(sc, false);
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- ath9k_ps_restore(sc);
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- ieee80211_wake_queues(hw);
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+ ath9k_ps_restore(sc);
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+ ieee80211_wake_queues(hw);
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+ }
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-out:
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ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
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mutex_unlock(&sc->mutex);
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}
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