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authorVasanthakumar Thiagarajan <vasanth@atheros.com>2009-05-15 02:47:16 -0400
committerJohn W. Linville <linville@tuxdriver.com>2009-05-20 14:46:30 -0400
commit153e080da6a07ed888a0a59c45e28bc7351407ff (patch)
tree7d772b65967747146b6b14af2a61fa3f53617edd
parente3da574a0ddd3e90a1e2b788b84b94bc17a75172 (diff)
ath9k: Move PS wakeup/restore calls from isr to tasklet
We do not need to do this in ath_isr() and it looks like the modified version ends up being more stable as far as being able receive beacon frames is concerned. Furthermore, this reduces need to move between AWAKE and NETWORK SLEEP states when processing some unrelated interrupts. Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com> Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/main.c22
-rw-r--r--drivers/net/wireless/ath/ath9k/recv.c2
2 files changed, 9 insertions, 15 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 0e8f6d41a37..c161b75cded 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -455,8 +455,11 @@ static void ath9k_tasklet(unsigned long data)
struct ath_softc *sc = (struct ath_softc *)data;
u32 status = sc->intrstatus;
+ ath9k_ps_wakeup(sc);
+
if (status & ATH9K_INT_FATAL) {
ath_reset(sc, false);
+ ath9k_ps_restore(sc);
return;
}
@@ -471,6 +474,7 @@ static void ath9k_tasklet(unsigned long data)
/* re-enable hardware interrupt */
ath9k_hw_set_interrupts(sc->sc_ah, sc->imask);
+ ath9k_ps_restore(sc);
}
irqreturn_t ath_isr(int irq, void *dev)
@@ -498,14 +502,11 @@ irqreturn_t ath_isr(int irq, void *dev)
if (sc->sc_flags & SC_OP_INVALID)
return IRQ_NONE;
- ath9k_ps_wakeup(sc);
/* shared irq, not for us */
- if (!ath9k_hw_intrpend(ah)) {
- ath9k_ps_restore(sc);
+ if (!ath9k_hw_intrpend(ah))
return IRQ_NONE;
- }
/*
* Figure out the reason(s) for the interrupt. Note
@@ -520,10 +521,8 @@ irqreturn_t ath_isr(int irq, void *dev)
* If there are no status bits set, then this interrupt was not
* for me (should have been caught above).
*/
- if (!status) {
- ath9k_ps_restore(sc);
+ if (!status)
return IRQ_NONE;
- }
/* Cache the status */
sc->intrstatus = status;
@@ -560,20 +559,17 @@ irqreturn_t ath_isr(int irq, void *dev)
ath9k_hw_set_interrupts(ah, sc->imask);
}
- if (status & ATH9K_INT_TIM_TIMER) {
- if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+ if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
+ if (status & ATH9K_INT_TIM_TIMER) {
/* Clear RxAbort bit so that we can
* receive frames */
ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
- ath9k_hw_setrxabort(ah, 0);
- sched = true;
+ ath9k_hw_setrxabort(sc->sc_ah, 0);
sc->sc_flags |= SC_OP_WAIT_FOR_BEACON;
}
- }
chip_reset:
- ath9k_ps_restore(sc);
ath_debug_stat_interrupt(sc, status);
if (sched) {
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 72e9283bcf7..5567517aa64 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -508,8 +508,6 @@ static bool ath_beacon_dtim_pending_cab(struct sk_buff *skb)
static void ath_rx_ps_back_to_sleep(struct ath_softc *sc)
{
sc->sc_flags &= ~(SC_OP_WAIT_FOR_BEACON | SC_OP_WAIT_FOR_CAB);
- if (sc->hw->conf.flags & IEEE80211_CONF_PS)
- ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
}
static void ath_rx_ps_beacon(struct ath_softc *sc, struct sk_buff *skb)