From 2ff6575b1e497f88acf2c7de7e1ba015267b689d Mon Sep 17 00:00:00 2001 From: Sujith Date: Fri, 7 May 2010 13:37:57 +0530 Subject: [PATCH] ath9k_htc: Handle IDLE LED properly Switch LED off/on when handling CONF_CHANGE_IDLE. Not doing this would leave the radio LED on even though the chip would be in full sleep mode. Signed-off-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc_drv_main.c | 26 ++++++++++++++----- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 7c9e33ba95ab..f50358605266 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -1099,7 +1099,7 @@ fail_tx: return 0; } -static int ath9k_htc_radio_enable(struct ieee80211_hw *hw) +static int ath9k_htc_radio_enable(struct ieee80211_hw *hw, bool led) { struct ath9k_htc_priv *priv = hw->priv; struct ath_hw *ah = priv->ah; @@ -1147,6 +1147,13 @@ static int ath9k_htc_radio_enable(struct ieee80211_hw *hw) priv->tx_queues_stop = false; spin_unlock_bh(&priv->tx_lock); + if (led) { + /* Enable LED */ + ath9k_hw_cfg_output(ah, ah->led_pin, + AR_GPIO_OUTPUT_MUX_AS_OUTPUT); + ath9k_hw_set_gpio(ah, ah->led_pin, 0); + } + ieee80211_wake_queues(hw); return ret; @@ -1158,13 +1165,13 @@ static int ath9k_htc_start(struct ieee80211_hw *hw) int ret = 0; mutex_lock(&priv->mutex); - ret = ath9k_htc_radio_enable(hw); + ret = ath9k_htc_radio_enable(hw, false); mutex_unlock(&priv->mutex); return ret; } -static void ath9k_htc_radio_disable(struct ieee80211_hw *hw) +static void ath9k_htc_radio_disable(struct ieee80211_hw *hw, bool led) { struct ath9k_htc_priv *priv = hw->priv; struct ath_hw *ah = priv->ah; @@ -1177,6 +1184,12 @@ static void ath9k_htc_radio_disable(struct ieee80211_hw *hw) return; } + if (led) { + /* Disable LED */ + ath9k_hw_set_gpio(ah, ah->led_pin, 1); + ath9k_hw_cfg_gpio_input(ah, ah->led_pin); + } + /* Cancel all the running timers/work .. */ cancel_work_sync(&priv->ps_work); cancel_delayed_work_sync(&priv->ath9k_ani_work); @@ -1217,7 +1230,7 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw) struct ath9k_htc_priv *priv = hw->priv; mutex_lock(&priv->mutex); - ath9k_htc_radio_disable(hw); + ath9k_htc_radio_disable(hw, false); mutex_unlock(&priv->mutex); } @@ -1337,7 +1350,7 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed) if (enable_radio) { ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); - ath9k_htc_radio_enable(hw); + ath9k_htc_radio_enable(hw, true); ath_print(common, ATH_DBG_CONFIG, "not-idle: enabling radio\n"); } @@ -1389,10 +1402,9 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed) if (priv->ps_idle) { ath_print(common, ATH_DBG_CONFIG, "idle: disabling radio\n"); - ath9k_htc_radio_disable(hw); + ath9k_htc_radio_disable(hw, true); } - mutex_unlock(&priv->mutex); return 0; -- 2.20.1