Signed-off-by: Vivek Natarajan <vnatarajan@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/htc.h | 9 +++
drivers/net/wireless/ath/ath9k/htc_drv_init.c | 8 ++-
drivers/net/wireless/ath/ath9k/htc_drv_main.c | 93 ++++++++++++++++++++++++-
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 7 ++-
drivers/net/wireless/ath/ath9k/hw.c | 6 +-
5 files changed, 117 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index e09c6c2..0160e83 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -363,6 +363,11 @@ struct ath9k_htc_priv {
struct ath9k_htc_aggr_work aggr_work;
struct delayed_work ath9k_aggr_work;
struct delayed_work ath9k_ani_work;
+ struct work_struct ps_work;
+
+ struct mutex htc_pm_lock;
+ unsigned long ps_usecount;
+ bool ps_enabled;
struct ath_led radio_led;
struct ath_led assoc_led;
@@ -420,6 +425,10 @@ void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
void ath9k_rx_tasklet(unsigned long data);
u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);
+void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
+void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
+void ath9k_ps_work(struct work_struct *work);
+
void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
void ath9k_init_leds(struct ath9k_htc_priv *priv);
void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 90cfd90..1c6c99e 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -453,6 +453,7 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv, u16 devid)
spin_lock_init(&priv->tx_lock);
mutex_init(&priv->mutex);
mutex_init(&priv->aggr_work.mutex);
+ mutex_init(&priv->htc_pm_lock);
tasklet_init(&priv->wmi_tasklet, ath9k_wmi_tasklet,
(unsigned long)priv);
tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
@@ -460,6 +461,7 @@ static int ath9k_init_priv(struct ath9k_htc_priv *priv, u16 devid)
tasklet_init(&priv->tx_tasklet, ath9k_tx_tasklet, (unsigned long)priv);
INIT_DELAYED_WORK(&priv->ath9k_aggr_work, ath9k_htc_aggr_work);
INIT_DELAYED_WORK(&priv->ath9k_ani_work, ath9k_ani_work);
+ INIT_WORK(&priv->ps_work, ath9k_ps_work);
/*
* Cache line size is used to size and align various
@@ -514,12 +516,16 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
IEEE80211_HW_AMPDU_AGGREGATION |
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_HAS_RATE_CONTROL |
- IEEE80211_HW_RX_INCLUDES_FCS;
+ IEEE80211_HW_RX_INCLUDES_FCS |
+ IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_PS_NULLFUNC_STACK;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
+ hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+
hw->queues = 4;
hw->channel_change_time = 5000;
hw->max_listen_interval = 10;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 63f032d..e04452f 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;
}
@@ -693,6 +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;
@@ -727,6 +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);
@@ -748,8 +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,
@@ -1112,6 +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);
@@ -1119,8 +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);
@@ -1161,6 +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);
@@ -1207,6 +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;
}
@@ -1275,6 +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) {
@@ -1311,6 +1388,7 @@ 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;
@@ -1321,6 +1399,7 @@ static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
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);
}
@@ -1398,6 +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:
@@ -1420,6 +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;
@@ -1435,6 +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 ?
@@ -1447,6 +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);
}
}
@@ -1506,6 +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);
}
@@ -1534,9 +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,
@@ -1585,6 +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);
}
@@ -1593,6 +1680,7 @@ 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;
@@ -1600,6 +1688,7 @@ static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw)
priv->op_flags |= OP_FULL_RESET;
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)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index f1e3d83..0a7cb30 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -553,7 +553,7 @@ void ath9k_rx_tasklet(unsigned long data)
struct ieee80211_rx_status rx_status;
struct sk_buff *skb;
unsigned long flags;
-
+ struct ieee80211_hdr *hdr;
do {
spin_lock_irqsave(&priv->rx.rxbuflock, flags);
@@ -580,6 +580,11 @@ void ath9k_rx_tasklet(unsigned long data)
memcpy(IEEE80211_SKB_RXCB(rxbuf->skb), &rx_status,
sizeof(struct ieee80211_rx_status));
skb = rxbuf->skb;
+ hdr = (struct ieee80211_hdr *) skb->data;
+
+ if (ieee80211_is_beacon(hdr->frame_control) && priv->ps_enabled)
+ ieee80211_queue_work(priv->hw, &priv->ps_work);
+
spin_unlock_irqrestore(&priv->rx.rxbuflock, flags);
ieee80211_rx(priv->hw, skb);
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index a4826d5..338a8fc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3245,8 +3245,10 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
pCap->hw_caps |= ATH9K_HW_CAP_RFSILENT;
}
#endif
-
- pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
+ if (AR_SREV_9271(ah))
+ pCap->hw_caps |= ATH9K_HW_CAP_AUTOSLEEP;
+ else
+ pCap->hw_caps &= ~ATH9K_HW_CAP_AUTOSLEEP;
if (AR_SREV_9280(ah) || AR_SREV_9285(ah))
pCap->hw_caps &= ~ATH9K_HW_CAP_4KB_SPLITTRANS;
--
1.7.0.3
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