drv_config callback is called only after the ack for the nullframe
is received and so driver need not do anything special for this.
So remove NULLFUNC_COMPLETED, PS_ENABLED flags and bf_isnullfunc
flags from ath9k as mac80211 already handles them properly.
Also modularize the power save config callback.
Signed-off-by: Senthil Balasubramanian <senthilkumar@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ath9k.h | 4 --
drivers/net/wireless/ath/ath9k/main.c | 56 ++++++++++++++-----------------
drivers/net/wireless/ath/ath9k/xmit.c | 30 -----------------
3 files changed, 25 insertions(+), 65 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 9f8e542..de2b18e 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -241,7 +241,6 @@ struct ath_buf {
dma_addr_t bf_daddr; /* physical addr of desc */
dma_addr_t bf_buf_addr; /* physical addr of data buffer */
bool bf_stale;
- bool bf_isnullfunc;
bool bf_tx_aborted;
u16 bf_flags;
struct ath_buf_state bf_state;
@@ -349,7 +348,6 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
u16 tid, u16 *ssn);
void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
-void ath9k_enable_ps(struct ath_softc *sc);
/********/
/* VIFs */
@@ -573,8 +571,6 @@ struct ath_ant_comb {
#define PS_WAIT_FOR_PSPOLL_DATA BIT(2)
#define PS_WAIT_FOR_TX_ACK BIT(3)
#define PS_BEACON_SYNC BIT(4)
-#define PS_NULLFUNC_COMPLETED BIT(5)
-#define PS_ENABLED BIT(6)
struct ath_wiphy;
struct ath_rate_table;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index a133878..25b8140 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1491,7 +1491,7 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
mutex_unlock(&sc->mutex);
}
-void ath9k_enable_ps(struct ath_softc *sc)
+static void ath9k_enable_ps(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
@@ -1505,13 +1505,32 @@ void ath9k_enable_ps(struct ath_softc *sc)
}
}
+static void ath9k_disable_ps(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+
+ sc->ps_enabled = false;
+ ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
+ if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+ ath9k_hw_setrxabort(sc->sc_ah, 0);
+ sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
+ PS_WAIT_FOR_CAB |
+ PS_WAIT_FOR_PSPOLL_DATA |
+ PS_WAIT_FOR_TX_ACK);
+ if (ah->imask & ATH9K_INT_TIM_TIMER) {
+ ah->imask &= ~ATH9K_INT_TIM_TIMER;
+ ath9k_hw_set_interrupts(sc->sc_ah,
+ ah->imask);
+ }
+ }
+}
+
static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
{
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_conf *conf = &hw->conf;
- struct ath_hw *ah = sc->sc_ah;
bool disable_radio;
mutex_lock(&sc->mutex);
@@ -1558,35 +1577,10 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
if (changed & IEEE80211_CONF_CHANGE_PS) {
unsigned long flags;
spin_lock_irqsave(&sc->sc_pm_lock, flags);
- if (conf->flags & IEEE80211_CONF_PS) {
- sc->ps_flags |= PS_ENABLED;
- /*
- * At this point we know hardware has received an ACK
- * of a previously sent null data frame.
- */
- if ((sc->ps_flags & PS_NULLFUNC_COMPLETED)) {
- sc->ps_flags &= ~PS_NULLFUNC_COMPLETED;
- ath9k_enable_ps(sc);
- }
- } else {
- sc->ps_enabled = false;
- sc->ps_flags &= ~(PS_ENABLED |
- PS_NULLFUNC_COMPLETED);
- ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_AWAKE);
- if (!(ah->caps.hw_caps &
- ATH9K_HW_CAP_AUTOSLEEP)) {
- ath9k_hw_setrxabort(sc->sc_ah, 0);
- sc->ps_flags &= ~(PS_WAIT_FOR_BEACON |
- PS_WAIT_FOR_CAB |
- PS_WAIT_FOR_PSPOLL_DATA |
- PS_WAIT_FOR_TX_ACK);
- if (ah->imask & ATH9K_INT_TIM_TIMER) {
- ah->imask &= ~ATH9K_INT_TIM_TIMER;
- ath9k_hw_set_interrupts(sc->sc_ah,
- ah->imask);
- }
- }
- }
+ if (conf->flags & IEEE80211_CONF_PS)
+ ath9k_enable_ps(sc);
+ else
+ ath9k_disable_ps(sc);
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
}
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index f7da6b2..aa44777 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1648,13 +1648,6 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf,
bf->bf_buf_addr = bf->bf_dmacontext;
- /* tag if this is a nullfunc frame to enable PS when AP acks it */
- if (ieee80211_is_nullfunc(fc) && ieee80211_has_pm(fc)) {
- bf->bf_isnullfunc = true;
- sc->ps_flags &= ~PS_NULLFUNC_COMPLETED;
- } else
- bf->bf_isnullfunc = false;
-
bf->bf_tx_aborted = false;
return 0;
@@ -2082,18 +2075,6 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
}
/*
- * We now know the nullfunc frame has been ACKed so we
- * can disable RX.
- */
- if (bf->bf_isnullfunc &&
- (ts.ts_status & ATH9K_TX_ACKED)) {
- if ((sc->ps_flags & PS_ENABLED))
- ath9k_enable_ps(sc);
- else
- sc->ps_flags |= PS_NULLFUNC_COMPLETED;
- }
-
- /*
* Remove ath_buf's of the same transmit unit from txq,
* however leave the last descriptor back as the holding
* descriptor for hw.
@@ -2236,17 +2217,6 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
txok = !(txs.ts_status & ATH9K_TXERR_MASK);
- /*
- * Make sure null func frame is acked before configuring
- * hw into ps mode.
- */
- if (bf->bf_isnullfunc && txok) {
- if ((sc->ps_flags & PS_ENABLED))
- ath9k_enable_ps(sc);
- else
- sc->ps_flags |= PS_NULLFUNC_COMPLETED;
- }
-
if (!bf_isampdu(bf)) {
if (txs.ts_status & ATH9K_TXERR_XRETRY)
bf->bf_state.bf_type |= BUF_XRETRY;
--
1.7.2.1
--
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