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ath9k: Calculate sleep duration 

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;