summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath9k/htc_drv_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_main.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_main.c149
1 files changed, 128 insertions, 21 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 20a2c1341e20..eb7722b2cfcc 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -65,6 +65,56 @@ static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
return mode;
}
+static bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
+ enum ath9k_power_mode mode)
+{
+ bool ret;
+
+ mutex_lock(&priv->htc_pm_lock);
+ ret = ath9k_hw_setpower(priv->ah, mode);
+ mutex_unlock(&priv->htc_pm_lock);
+
+ return ret;
+}
+
+void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv)
+{
+ mutex_lock(&priv->htc_pm_lock);
+ if (++priv->ps_usecount != 1)
+ goto unlock;
+ ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE);
+
+unlock:
+ mutex_unlock(&priv->htc_pm_lock);
+}
+
+void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv)
+{
+ mutex_lock(&priv->htc_pm_lock);
+ if (--priv->ps_usecount != 0)
+ goto unlock;
+
+ if (priv->ps_enabled)
+ ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP);
+unlock:
+ mutex_unlock(&priv->htc_pm_lock);
+}
+
+void ath9k_ps_work(struct work_struct *work)
+{
+ struct ath9k_htc_priv *priv =
+ container_of(work, struct ath9k_htc_priv,
+ ps_work);
+ ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
+
+ /* The chip wakes up after receiving the first beacon
+ while network sleep is enabled. For the driver to
+ be in sync with the hw, set the chip to awake and
+ only then set it to sleep.
+ */
+ ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
+}
+
static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw,
struct ath9k_channel *hchan)
@@ -87,7 +137,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
/* Fiddle around with fastcc later on, for now just use full reset */
fastcc = false;
-
+ ath9k_htc_ps_wakeup(priv);
htc_stop(priv->htc);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
@@ -103,6 +153,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
ath_print(common, ATH_DBG_FATAL,
"Unable to reset channel (%u Mhz) "
"reset status %d\n", channel->center_freq, ret);
+ ath9k_htc_ps_restore(priv);
goto err;
}
@@ -128,6 +179,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
priv->op_flags &= ~OP_FULL_RESET;
err:
+ ath9k_htc_ps_restore(priv);
return ret;
}
@@ -412,32 +464,31 @@ static int ath9k_htc_aggr_oper(struct ath9k_htc_priv *priv,
if (tid > ATH9K_HTC_MAX_TID)
return -EINVAL;
+ memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
+
rcu_read_lock();
+
+ /* Check if we are able to retrieve the station */
sta = ieee80211_find_sta(vif, sta_addr);
- if (sta) {
- ista = (struct ath9k_htc_sta *) sta->drv_priv;
- } else {
+ if (!sta) {
rcu_read_unlock();
return -EINVAL;
}
- if (!ista) {
- rcu_read_unlock();
- return -EINVAL;
- }
+ ista = (struct ath9k_htc_sta *) sta->drv_priv;
- memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
+ if (oper)
+ ista->tid_state[tid] = AGGR_START;
+ else
+ ista->tid_state[tid] = AGGR_STOP;
aggr.sta_index = ista->index;
+
rcu_read_unlock();
+
aggr.tidno = tid;
aggr.aggr_enable = oper;
- if (oper)
- ista->tid_state[tid] = AGGR_START;
- else
- ista->tid_state[tid] = AGGR_STOP;
-
WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr);
if (ret)
ath_print(common, ATH_DBG_CONFIG,
@@ -694,6 +745,10 @@ void ath9k_ani_work(struct work_struct *work)
short_cal_interval = ATH_STA_SHORT_CALINTERVAL;
+ /* Only calibrate if awake */
+ if (ah->power_mode != ATH9K_PM_AWAKE)
+ goto set_timer;
+
/* Long calibration runs independently of short calibration. */
if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
longcal = true;
@@ -728,6 +783,9 @@ void ath9k_ani_work(struct work_struct *work)
/* Skip all processing if there's nothing to do. */
if (longcal || shortcal || aniflag) {
+
+ ath9k_htc_ps_wakeup(priv);
+
/* Call ANI routine if necessary */
if (aniflag)
ath9k_hw_ani_monitor(ah, ah->curchan);
@@ -749,8 +807,11 @@ void ath9k_ani_work(struct work_struct *work)
ah->curchan->channelFlags,
common->ani.noise_floor);
}
+
+ ath9k_htc_ps_restore(priv);
}
+set_timer:
/*
* Set timer interval based on previous results.
* The interval must be the shortest necessary to satisfy ANI,
@@ -995,7 +1056,7 @@ static int ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr;
struct ath9k_htc_priv *priv = hw->priv;
- int padpos, padsize;
+ int padpos, padsize, ret;
hdr = (struct ieee80211_hdr *) skb->data;
@@ -1009,8 +1070,19 @@ static int ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
memmove(skb->data, skb->data + padsize, padpos);
}
- if (ath9k_htc_tx_start(priv, skb) != 0) {
- ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT, "Tx failed");
+ ret = ath9k_htc_tx_start(priv, skb);
+ if (ret != 0) {
+ if (ret == -ENOMEM) {
+ ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT,
+ "Stopping TX queues\n");
+ ieee80211_stop_queues(hw);
+ spin_lock_bh(&priv->tx_lock);
+ priv->tx_queues_stop = true;
+ spin_unlock_bh(&priv->tx_lock);
+ } else {
+ ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT,
+ "Tx failed");
+ }
goto fail_tx;
}
@@ -1075,6 +1147,12 @@ static int ath9k_htc_start(struct ieee80211_hw *hw)
priv->op_flags &= ~OP_INVALID;
htc_start(priv->htc);
+ spin_lock_bh(&priv->tx_lock);
+ priv->tx_queues_stop = false;
+ spin_unlock_bh(&priv->tx_lock);
+
+ ieee80211_wake_queues(hw);
+
mutex_unlock:
mutex_unlock(&priv->mutex);
return ret;
@@ -1096,6 +1174,7 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw)
return;
}
+ ath9k_htc_ps_wakeup(priv);
htc_stop(priv->htc);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
@@ -1103,8 +1182,10 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw)
ath9k_hw_phy_disable(ah);
ath9k_hw_disable(ah);
ath9k_hw_configpcipowersave(ah, 1, 1);
- ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
+ ath9k_htc_ps_restore(priv);
+ ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
+ cancel_work_sync(&priv->ps_work);
cancel_delayed_work_sync(&priv->ath9k_ani_work);
cancel_delayed_work_sync(&priv->ath9k_aggr_work);
cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
@@ -1145,6 +1226,7 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
goto out;
}
+ ath9k_htc_ps_wakeup(priv);
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
@@ -1191,6 +1273,7 @@ static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
priv->vif = vif;
out:
+ ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
return ret;
}
@@ -1259,6 +1342,16 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
}
}
+ if (changed & IEEE80211_CONF_CHANGE_PS) {
+ if (conf->flags & IEEE80211_CONF_PS) {
+ ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP);
+ priv->ps_enabled = true;
+ } else {
+ priv->ps_enabled = false;
+ cancel_work_sync(&priv->ps_work);
+ ath9k_htc_setpower(priv, ATH9K_PM_AWAKE);
+ }
+ }
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
if (conf->flags & IEEE80211_CONF_MONITOR) {
@@ -1295,16 +1388,18 @@ static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
mutex_lock(&priv->mutex);
+ ath9k_htc_ps_wakeup(priv);
changed_flags &= SUPPORTED_FILTERS;
*total_flags &= SUPPORTED_FILTERS;
priv->rxfilter = *total_flags;
- rfilt = ath9k_cmn_calcrxfilter(hw, priv->ah, priv->rxfilter);
+ rfilt = ath9k_htc_calcrxfilter(priv);
ath9k_hw_setrxfilter(priv->ah, rfilt);
ath_print(ath9k_hw_common(priv->ah), ATH_DBG_CONFIG,
"Set HW RX filter: 0x%x\n", rfilt);
+ ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
}
@@ -1382,6 +1477,7 @@ static int ath9k_htc_set_key(struct ieee80211_hw *hw,
mutex_lock(&priv->mutex);
ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n");
+ ath9k_htc_ps_wakeup(priv);
switch (cmd) {
case SET_KEY:
@@ -1404,6 +1500,7 @@ static int ath9k_htc_set_key(struct ieee80211_hw *hw,
ret = -EINVAL;
}
+ ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
return ret;
@@ -1419,6 +1516,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
struct ath_common *common = ath9k_hw_common(ah);
mutex_lock(&priv->mutex);
+ ath9k_htc_ps_wakeup(priv);
if (changed & BSS_CHANGED_ASSOC) {
common->curaid = bss_conf->assoc ?
@@ -1431,6 +1529,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
ath_start_ani(priv);
} else {
priv->op_flags &= ~OP_ASSOCIATED;
+ cancel_work_sync(&priv->ps_work);
cancel_delayed_work_sync(&priv->ath9k_ani_work);
}
}
@@ -1450,7 +1549,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
((changed & BSS_CHANGED_BEACON_ENABLED) &&
bss_conf->enable_beacon)) {
priv->op_flags |= OP_ENABLE_BEACON;
- ath9k_htc_beacon_config(priv, vif, bss_conf);
+ ath9k_htc_beacon_config(priv, vif);
}
if (changed & BSS_CHANGED_BEACON)
@@ -1459,7 +1558,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
!bss_conf->enable_beacon) {
priv->op_flags &= ~OP_ENABLE_BEACON;
- ath9k_htc_beacon_config(priv, vif, bss_conf);
+ ath9k_htc_beacon_config(priv, vif);
}
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
@@ -1490,6 +1589,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
ath9k_hw_init_global_settings(ah);
}
+ ath9k_htc_ps_restore(priv);
mutex_unlock(&priv->mutex);
}
@@ -1518,9 +1618,11 @@ static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
+ ath9k_htc_ps_wakeup(priv);
mutex_lock(&priv->mutex);
ath9k_hw_reset_tsf(priv->ah);
mutex_unlock(&priv->mutex);
+ ath9k_htc_ps_restore(priv);
}
static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
@@ -1569,6 +1671,7 @@ static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw)
spin_lock_bh(&priv->beacon_lock);
priv->op_flags |= OP_SCANNING;
spin_unlock_bh(&priv->beacon_lock);
+ cancel_work_sync(&priv->ps_work);
cancel_delayed_work_sync(&priv->ath9k_ani_work);
mutex_unlock(&priv->mutex);
}
@@ -1577,13 +1680,17 @@ static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
+ ath9k_htc_ps_wakeup(priv);
mutex_lock(&priv->mutex);
spin_lock_bh(&priv->beacon_lock);
priv->op_flags &= ~OP_SCANNING;
spin_unlock_bh(&priv->beacon_lock);
priv->op_flags |= OP_FULL_RESET;
+ if (priv->op_flags & OP_ASSOCIATED)
+ ath9k_htc_beacon_config(priv, NULL);
ath_start_ani(priv);
mutex_unlock(&priv->mutex);
+ ath9k_htc_ps_restore(priv);
}
static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-19 07:36:01 +0300