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ath9k: Calculate sleep duration

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Right now sleep duration is configured as beacon interval. It should be
the multiple of beacon interval by listen period which helps to
reduce station power consumption.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2014-06-26 16:54:42 +05:30 committed by John W. Linville
parent 5f2f9e44ba
commit 09ebb81092
1 changed files with 3 additions and 2 deletions
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5
drivers/net/wireless/ath/ath9k/common-beacon.c
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@ -57,7 +57,7 @@ int ath9k_cmn_beacon_config_sta(struct ath_hw *ah,
struct ath9k_beacon_state *bs)
{
struct ath_common *common = ath9k_hw_common(ah);
int dtim_intval;
int dtim_intval, sleepduration;
u64 tsf;
/* No need to configure beacon if we are not associated */
@ -75,6 +75,7 @@ int ath9k_cmn_beacon_config_sta(struct ath_hw *ah,
* last beacon we received (which may be none).
*/
dtim_intval = conf->intval * conf->dtim_period;
sleepduration = ah->hw->conf.listen_interval * conf->intval;
/*
* Pull nexttbtt forward to reflect the current
@ -112,7 +113,7 @@ int ath9k_cmn_beacon_config_sta(struct ath_hw *ah,
*/
bs->bs_sleepduration = TU_TO_USEC(roundup(IEEE80211_MS_TO_TU(100),
conf->intval));
sleepduration));
if (bs->bs_sleepduration > bs->bs_dtimperiod)
bs->bs_sleepduration = bs->bs_dtimperiod;