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ath9k: use a timer to put hardware into full sleep

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When operating in client mode, the short period of time between scanning
and associating is often enough to put the hardware through several
FULL-SLEEP <-> AWAKE transitions, each wakeup requiring a reset to fully
recover the hardware.
This is completely unnecessary and can easily be avoided by deferring
the switch to full sleep.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau
2013-11-11 22:23:33 +01:00
committed by John W. Linville
parent f28c785f37
commit bf3dac5a6f
3 changed files with 26 additions and 5 deletions
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2
drivers/net/wireless/ath/ath9k/ath9k.h
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@@ -459,6 +459,7 @@ void ath_check_ani(struct ath_softc *sc);
int ath_update_survey_stats(struct ath_softc *sc);
void ath_update_survey_nf(struct ath_softc *sc, int channel);
void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
void ath_ps_full_sleep(unsigned long data);
/**********/
/* BTCOEX */
@@ -789,6 +790,7 @@ struct ath_softc {
struct delayed_work tx_complete_work;
struct delayed_work hw_pll_work;
struct timer_list rx_poll_timer;
struct timer_list sleep_timer;
#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
struct ath_btcoex btcoex;