From: Sujith Manoharan Date: Mon, 25 Jun 2012 08:24:41 +0000 (+0530) Subject: ath9k_htc: Use atomic operations for op_flags X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d8a2c51cdcae;p=linux-beck.git ath9k_htc: Use atomic operations for op_flags Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 135795257d95..1ee6548c7125 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -453,7 +453,6 @@ struct ath9k_htc_priv { u8 num_sta_assoc_vif; u8 num_ap_vif; - u16 op_flags; u16 curtxpow; u16 txpowlimit; u16 nvifs; @@ -461,6 +460,7 @@ struct ath9k_htc_priv { bool rearm_ani; bool reconfig_beacon; unsigned int rxfilter; + unsigned long op_flags; struct ath9k_hw_cal_data caldata; struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c index 2eadffb7971c..77d541feb910 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_beacon.c @@ -207,9 +207,9 @@ static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv, else priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE; - if (priv->op_flags & OP_TSF_RESET) { + if (test_bit(OP_TSF_RESET, &priv->op_flags)) { ath9k_hw_reset_tsf(priv->ah); - priv->op_flags &= ~OP_TSF_RESET; + clear_bit(OP_TSF_RESET, &priv->op_flags); } else { /* * Pull nexttbtt forward to reflect the current TSF. @@ -221,7 +221,7 @@ static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv, } while (nexttbtt < tsftu); } - if (priv->op_flags & OP_ENABLE_BEACON) + if (test_bit(OP_ENABLE_BEACON, &priv->op_flags)) imask |= ATH9K_INT_SWBA; ath_dbg(common, CONFIG, @@ -269,7 +269,7 @@ static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv, else priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE; - if (priv->op_flags & OP_ENABLE_BEACON) + if (test_bit(OP_ENABLE_BEACON, &priv->op_flags)) imask |= ATH9K_INT_SWBA; ath_dbg(common, CONFIG, @@ -365,7 +365,7 @@ static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv, vif = priv->cur_beacon_conf.bslot[slot]; avp = (struct ath9k_htc_vif *)vif->drv_priv; - if (unlikely(priv->op_flags & OP_SCANNING)) { + if (unlikely(test_bit(OP_SCANNING, &priv->op_flags))) { spin_unlock_bh(&priv->beacon_lock); return; } diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c index 1c10e2e5c237..3688bbad87eb 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c @@ -37,17 +37,18 @@ static void ath_detect_bt_priority(struct ath9k_htc_priv *priv) if (time_after(jiffies, btcoex->bt_priority_time + msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) { - priv->op_flags &= ~(OP_BT_PRIORITY_DETECTED | OP_BT_SCAN); + clear_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + clear_bit(OP_BT_SCAN, &priv->op_flags); /* Detect if colocated bt started scanning */ if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) { ath_dbg(ath9k_hw_common(ah), BTCOEX, "BT scan detected\n"); - priv->op_flags |= (OP_BT_SCAN | - OP_BT_PRIORITY_DETECTED); + set_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + set_bit(OP_BT_SCAN, &priv->op_flags); } else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) { ath_dbg(ath9k_hw_common(ah), BTCOEX, "BT priority traffic detected\n"); - priv->op_flags |= OP_BT_PRIORITY_DETECTED; + set_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); } btcoex->bt_priority_cnt = 0; @@ -67,26 +68,23 @@ static void ath_btcoex_period_work(struct work_struct *work) struct ath_btcoex *btcoex = &priv->btcoex; struct ath_common *common = ath9k_hw_common(priv->ah); u32 timer_period; - bool is_btscan; int ret; ath_detect_bt_priority(priv); - is_btscan = !!(priv->op_flags & OP_BT_SCAN); - ret = ath9k_htc_update_cap_target(priv, - !!(priv->op_flags & OP_BT_PRIORITY_DETECTED)); + test_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags)); if (ret) { ath_err(common, "Unable to set BTCOEX parameters\n"); return; } - ath9k_hw_btcoex_bt_stomp(priv->ah, is_btscan ? ATH_BTCOEX_STOMP_ALL : - btcoex->bt_stomp_type); + ath9k_hw_btcoex_bt_stomp(priv->ah, test_bit(OP_BT_SCAN, &priv->op_flags) ? + ATH_BTCOEX_STOMP_ALL : btcoex->bt_stomp_type); ath9k_hw_btcoex_enable(priv->ah); - timer_period = is_btscan ? btcoex->btscan_no_stomp : - btcoex->btcoex_no_stomp; + timer_period = test_bit(OP_BT_SCAN, &priv->op_flags) ? + btcoex->btscan_no_stomp : btcoex->btcoex_no_stomp; ieee80211_queue_delayed_work(priv->hw, &priv->duty_cycle_work, msecs_to_jiffies(timer_period)); ieee80211_queue_delayed_work(priv->hw, &priv->coex_period_work, @@ -104,14 +102,15 @@ static void ath_btcoex_duty_cycle_work(struct work_struct *work) struct ath_hw *ah = priv->ah; struct ath_btcoex *btcoex = &priv->btcoex; struct ath_common *common = ath9k_hw_common(ah); - bool is_btscan = priv->op_flags & OP_BT_SCAN; ath_dbg(common, BTCOEX, "time slice work for bt and wlan\n"); - if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || is_btscan) + if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || + test_bit(OP_BT_SCAN, &priv->op_flags)) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL) ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW); + ath9k_hw_btcoex_enable(priv->ah); } @@ -141,7 +140,8 @@ static void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv) btcoex->bt_priority_cnt = 0; btcoex->bt_priority_time = jiffies; - priv->op_flags &= ~(OP_BT_PRIORITY_DETECTED | OP_BT_SCAN); + clear_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags); + clear_bit(OP_BT_SCAN, &priv->op_flags); ieee80211_queue_delayed_work(priv->hw, &priv->coex_period_work, 0); } diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index cac6ff4cd14f..a035a380d669 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -611,7 +611,7 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv, struct ath_common *common; int i, ret = 0, csz = 0; - priv->op_flags |= OP_INVALID; + set_bit(OP_INVALID, &priv->op_flags); ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); if (!ah) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 2b8f61c210e1..0fc0d35414c0 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -250,7 +250,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, u8 cmd_rsp; int ret; - if (priv->op_flags & OP_INVALID) + if (test_bit(OP_INVALID, &priv->op_flags)) return -EIO; fastcc = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL); @@ -304,7 +304,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, htc_start(priv->htc); - if (!(priv->op_flags & OP_SCANNING) && + if (!test_bit(OP_SCANNING, &priv->op_flags) && !(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) ath9k_htc_vif_reconfig(priv); @@ -750,7 +750,7 @@ void ath9k_htc_start_ani(struct ath9k_htc_priv *priv) common->ani.shortcal_timer = timestamp; common->ani.checkani_timer = timestamp; - priv->op_flags |= OP_ANI_RUNNING; + set_bit(OP_ANI_RUNNING, &priv->op_flags); ieee80211_queue_delayed_work(common->hw, &priv->ani_work, msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); @@ -759,7 +759,7 @@ void ath9k_htc_start_ani(struct ath9k_htc_priv *priv) void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv) { cancel_delayed_work_sync(&priv->ani_work); - priv->op_flags &= ~OP_ANI_RUNNING; + clear_bit(OP_ANI_RUNNING, &priv->op_flags); } void ath9k_htc_ani_work(struct work_struct *work) @@ -944,7 +944,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw) ath_dbg(common, CONFIG, "Failed to update capability in target\n"); - priv->op_flags &= ~OP_INVALID; + clear_bit(OP_INVALID, &priv->op_flags); htc_start(priv->htc); spin_lock_bh(&priv->tx.tx_lock); @@ -973,7 +973,7 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw) mutex_lock(&priv->mutex); - if (priv->op_flags & OP_INVALID) { + if (test_bit(OP_INVALID, &priv->op_flags)) { ath_dbg(common, ANY, "Device not present\n"); mutex_unlock(&priv->mutex); return; @@ -1015,7 +1015,7 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw) ath9k_htc_ps_restore(priv); ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP); - priv->op_flags |= OP_INVALID; + set_bit(OP_INVALID, &priv->op_flags); ath_dbg(common, CONFIG, "Driver halt\n"); mutex_unlock(&priv->mutex); @@ -1105,7 +1105,7 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw, ath9k_htc_set_opmode(priv); if ((priv->ah->opmode == NL80211_IFTYPE_AP) && - !(priv->op_flags & OP_ANI_RUNNING)) { + !test_bit(OP_ANI_RUNNING, &priv->op_flags)) { ath9k_hw_set_tsfadjust(priv->ah, 1); ath9k_htc_start_ani(priv); } @@ -1285,7 +1285,7 @@ static void ath9k_htc_configure_filter(struct ieee80211_hw *hw, changed_flags &= SUPPORTED_FILTERS; *total_flags &= SUPPORTED_FILTERS; - if (priv->op_flags & OP_INVALID) { + if (test_bit(OP_INVALID, &priv->op_flags)) { ath_dbg(ath9k_hw_common(priv->ah), ANY, "Unable to configure filter on invalid state\n"); mutex_unlock(&priv->mutex); @@ -1517,7 +1517,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, ath_dbg(common, CONFIG, "Beacon enabled for BSS: %pM\n", bss_conf->bssid); ath9k_htc_set_tsfadjust(priv, vif); - priv->op_flags |= OP_ENABLE_BEACON; + set_bit(OP_ENABLE_BEACON, &priv->op_flags); ath9k_htc_beacon_config(priv, vif); } @@ -1530,7 +1530,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, ath_dbg(common, CONFIG, "Beacon disabled for BSS: %pM\n", bss_conf->bssid); - priv->op_flags &= ~OP_ENABLE_BEACON; + clear_bit(OP_ENABLE_BEACON, &priv->op_flags); ath9k_htc_beacon_config(priv, vif); } } @@ -1543,7 +1543,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, (priv->nvifs == 1) && (priv->num_ap_vif == 1) && (vif->type == NL80211_IFTYPE_AP)) { - priv->op_flags |= OP_TSF_RESET; + set_bit(OP_TSF_RESET, &priv->op_flags); } ath_dbg(common, CONFIG, "Beacon interval changed for BSS: %pM\n", @@ -1655,7 +1655,7 @@ static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw) mutex_lock(&priv->mutex); spin_lock_bh(&priv->beacon_lock); - priv->op_flags |= OP_SCANNING; + set_bit(OP_SCANNING, &priv->op_flags); spin_unlock_bh(&priv->beacon_lock); cancel_work_sync(&priv->ps_work); ath9k_htc_stop_ani(priv); @@ -1668,7 +1668,7 @@ static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw) mutex_lock(&priv->mutex); spin_lock_bh(&priv->beacon_lock); - priv->op_flags &= ~OP_SCANNING; + clear_bit(OP_SCANNING, &priv->op_flags); spin_unlock_bh(&priv->beacon_lock); ath9k_htc_ps_wakeup(priv); ath9k_htc_vif_reconfig(priv); diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c index 3e40a6461512..47e61d0da33b 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c @@ -916,7 +916,7 @@ void ath9k_host_rx_init(struct ath9k_htc_priv *priv) { ath9k_hw_rxena(priv->ah); ath9k_htc_opmode_init(priv); - ath9k_hw_startpcureceive(priv->ah, (priv->op_flags & OP_SCANNING)); + ath9k_hw_startpcureceive(priv->ah, test_bit(OP_SCANNING, &priv->op_flags)); priv->rx.last_rssi = ATH_RSSI_DUMMY_MARKER; }