noisefloor calibration has to be loaded and started after
chip reset completion and restoring chainmask. Right now it is
being started before MCI reset completion on full reset. Fix that.
Signed-off-by: Rajkumar Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/hw.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index ebfb2a3..10a55bc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1949,9 +1949,6 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
if (!ath9k_hw_init_cal(ah, chan))
return -EIO;
- ath9k_hw_loadnf(ah, chan);
- ath9k_hw_start_nfcal(ah, true);
-
if (ath9k_hw_mci_is_enabled(ah) && ar9003_mci_end_reset(ah, chan, caldata))
return -EIO;
@@ -2000,6 +1997,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
if (ath9k_hw_mci_is_enabled(ah))
ar9003_mci_check_bt(ah);
+ ath9k_hw_loadnf(ah, chan);
+ ath9k_hw_start_nfcal(ah, true);
+
if (AR_SREV_9300_20_OR_LATER(ah)) {
ar9003_hw_bb_watchdog_config(ah);
--
1.7.11.1
Noise floor calibration is performed on longcal interval and
the reading will be updated in history buffer. On rare occasions,
the previous noisefloor calibration might not be completed within
the period and trying to load nf reading will be failed. In such
situation, postpone the nf cabliration to next cycle to give
enough time to complete the calibration. This was already taken
care for ar9002 chips.
Signed-off-by: Rajkumar Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/ar9003_calib.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index d7deb8c..84b558d 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -159,14 +159,11 @@ static bool ar9003_hw_calibrate(struct ath_hw *ah,
}
}
- /* Do NF cal only at longer intervals */
- if (longcal) {
- /*
- * Get the value from the previous NF cal and update
- * history buffer.
- */
- ath9k_hw_getnf(ah, chan);
-
+ /*
+ * Do NF cal only at longer intervals. Get the value from
+ * the previous NF cal and update history buffer.
+ */
+ if (longcal && ath9k_hw_getnf(ah, chan)) {
/*
* Load the NF from history buffer of the current channel.
* NF is slow time-variant, so it is OK to use a historical
--
1.7.11.1
The chip is waken up for every 45ms in btcoex timer cycle to
for sharing the radio between BT and WLAN. Whenever the wlan
interface is in network sleep mode, do not schedule hw timers.
This could reduce power consumption on idle associated state.
Signed-off-by: Rajkumar Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/ath9k.h | 4 ++++
drivers/net/wireless/ath/ath9k/gpio.c | 16 ++++++++++++++++
drivers/net/wireless/ath/ath9k/main.c | 2 ++
3 files changed, 22 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index fe39eb4..79840d6 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -481,6 +481,7 @@ void ath9k_btcoex_timer_resume(struct ath_softc *sc);
void ath9k_btcoex_timer_pause(struct ath_softc *sc);
void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status);
u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen);
+void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc);
#else
static inline int ath9k_init_btcoex(struct ath_softc *sc)
{
@@ -504,6 +505,9 @@ static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc,
{
return 0;
}
+static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
+{
+}
#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
/********************/
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index 9ae6a4d..640f2ed 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -194,6 +194,14 @@ static void ath_btcoex_period_timer(unsigned long data)
struct ath_mci_profile *mci = &btcoex->mci;
u32 timer_period;
bool is_btscan;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sc->sc_pm_lock, flags);
+ if (sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP) {
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+ goto skip_hw_wakeup;
+ }
+ spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
ath9k_ps_wakeup(sc);
if (!(ah->caps.hw_caps & ATH9K_HW_CAP_MCI))
@@ -232,6 +240,7 @@ static void ath_btcoex_period_timer(unsigned long data)
}
ath9k_ps_restore(sc);
+skip_hw_wakeup:
timer_period = btcoex->btcoex_period;
mod_timer(&btcoex->period_timer, jiffies + msecs_to_jiffies(timer_period));
}
@@ -327,6 +336,13 @@ void ath9k_btcoex_timer_pause(struct ath_softc *sc)
btcoex->hw_timer_enabled = false;
}
+void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc)
+{
+ struct ath_btcoex *btcoex = &sc->btcoex;
+
+ ath9k_gen_timer_stop(sc->sc_ah, btcoex->no_stomp_timer);
+}
+
u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen)
{
struct ath_btcoex *btcoex = &sc->btcoex;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 6ce0128..06a3d1c 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -130,6 +130,8 @@ void ath9k_ps_restore(struct ath_softc *sc)
PS_WAIT_FOR_PSPOLL_DATA |
PS_WAIT_FOR_TX_ACK))) {
mode = ATH9K_PM_NETWORK_SLEEP;
+ if (ath9k_hw_btcoex_is_enabled(sc->sc_ah))
+ ath9k_btcoex_stop_gen_timer(sc);
} else {
goto unlock;
}
--
1.7.11.1
On full reset, mci reset will put LNA update on 2G mode. And
Whenever 2g5g_switch is forced at the end of full reset, lna
update should not be skipped. Not doing so, is affecting WLAN
rx and causing beacon loss when BTCOEX is enabled on AR9462.
Signed-off-by: Rajkumar Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/ar9003_mci.c | 18 ++++++------------
1 file changed, 6 insertions(+), 12 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 6155837..9a34fca 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -1015,12 +1015,9 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force)
return;
if (mci->is_2g) {
- if (!force) {
- ar9003_mci_send_2g5g_status(ah, true);
-
- ar9003_mci_send_lna_transfer(ah, true);
- udelay(5);
- }
+ ar9003_mci_send_2g5g_status(ah, true);
+ ar9003_mci_send_lna_transfer(ah, true);
+ udelay(5);
REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
@@ -1030,10 +1027,8 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force)
if (!(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA))
ar9003_mci_osla_setup(ah, true);
} else {
- if (!force) {
- ar9003_mci_send_lna_take(ah, true);
- udelay(5);
- }
+ ar9003_mci_send_lna_take(ah, true);
+ udelay(5);
REG_SET_BIT(ah, AR_MCI_TX_CTRL,
AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
@@ -1041,8 +1036,7 @@ void ar9003_mci_2g5g_switch(struct ath_hw *ah, bool force)
AR_BTCOEX_CTRL_BT_OWN_SPDT_CTRL);
ar9003_mci_osla_setup(ah, false);
- if (!force)
- ar9003_mci_send_2g5g_status(ah, true);
+ ar9003_mci_send_2g5g_status(ah, true);
}
}
--
1.7.11.1
As soon as the interface brought up, btcoex timer starts running
eventhough the interface is in idle state and WLAN chip is moved
to full sleep mode. There is no point in running btcoex timer when
the wlan interface is in sleep mode and also it might consumes
more power on WLAN idle unassociated state. So lets stop the
btcoex when wlan is idle state.
Signed-off-by: Rajkumar Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/main.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index e4e73f0..6ce0128 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -666,8 +666,6 @@ static int ath9k_start(struct ieee80211_hw *hw)
spin_unlock_bh(&sc->sc_pcu_lock);
- ath9k_start_btcoex(sc);
-
if (ah->caps.pcie_lcr_extsync_en && common->bus_ops->extn_synch_en)
common->bus_ops->extn_synch_en(common);
@@ -774,8 +772,6 @@ static void ath9k_stop(struct ieee80211_hw *hw)
/* Ensure HW is awake when we try to shut it down. */
ath9k_ps_wakeup(sc);
- ath9k_stop_btcoex(sc);
-
spin_lock_bh(&sc->sc_pcu_lock);
/* prevent tasklets to enable interrupts once we disable them */
@@ -1139,14 +1135,17 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
- if (sc->ps_idle)
+ if (sc->ps_idle) {
ath_cancel_work(sc);
- else
+ ath9k_stop_btcoex(sc);
+ } else {
+ ath9k_start_btcoex(sc);
/*
* The chip needs a reset to properly wake up from
* full sleep
*/
reset_channel = ah->chip_fullsleep;
+ }
}
/*
--
1.7.11.1