ath9k: Further fix for mesh beaconing

This fix ensure the timers to be set at beacon interval boundaries.
Without this change timers can be set improperly resulting in the absence of beacons.

Signed-off-by: Fabrice Deyber <fabricedeyber@agilemesh.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Fabrice Deyber 2011-05-24 08:44:35 -05:00 committed by John W. Linville
parent b942471bfc
commit 81168e509f

View file

@ -652,22 +652,13 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc,
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
u32 tsf, delta, intval, nexttbtt;
u32 tsf, intval, nexttbtt;
ath9k_reset_beacon_status(sc);
tsf = ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE);
intval = TU_TO_USEC(conf->beacon_interval);
if (!sc->beacon.bc_tstamp)
nexttbtt = tsf + intval;
else {
if (tsf > sc->beacon.bc_tstamp)
delta = (tsf - sc->beacon.bc_tstamp);
else
delta = (tsf + 1 + (~0U - sc->beacon.bc_tstamp));
nexttbtt = tsf + intval - (delta % intval);
}
tsf = roundup(ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE), intval);
nexttbtt = tsf + intval;
ath_dbg(common, ATH_DBG_BEACON,
"IBSS nexttbtt %u intval %u (%u)\n",