ath9k: Calculate sleep duration
authorRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Thu, 26 Jun 2014 11:24:42 +0000 (16:54 +0530)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 1 Jul 2014 18:26:26 +0000 (14:26 -0400)
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>
drivers/net/wireless/ath/ath9k/common-beacon.c

index 775d1d20ce0b384bae1897879b1e4d17f6b4fbd4..733be5178481e6967141e952a23f348705bae2e4 100644 (file)
@@ -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;