Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 15a533c4 authored by Helmut Schaa's avatar Helmut Schaa Committed by John W. Linville
Browse files

rt2x00: Use correct TBTT_SYNC config in AP mode 



This seems to fix problems with some powersaving clients since a
positive value in TBTT_SYNC_CFG_TBTT_ADJUST introduces beacon skew,
which is not wanted in AP mode.

Also update the rest of the TBTT_SYNC config according to the
legacy drivers in AP mode.

Signed-off-by: default avatarHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 10e11568

drivers/net/wireless/rt2x00/rt2800lib.c

+19 −0
Original line number Diff line number Diff line
@@ -1245,6 +1245,25 @@ void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf, 
		rt2800_register_read(rt2x00dev, BCN_TIME_CFG, &reg);

		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_SYNC, conf->sync);

		rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);



		if (conf->sync == TSF_SYNC_AP_NONE) {

			/*

			 * Tune beacon queue transmit parameters for AP mode

			 */

			rt2800_register_read(rt2x00dev, TBTT_SYNC_CFG, &reg);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_BCN_CWMIN, 0);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_BCN_AIFSN, 1);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_BCN_EXP_WIN, 32);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_TBTT_ADJUST, 0);

			rt2800_register_write(rt2x00dev, TBTT_SYNC_CFG, reg);

		} else {

			rt2800_register_read(rt2x00dev, TBTT_SYNC_CFG, &reg);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_BCN_CWMIN, 4);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_BCN_AIFSN, 2);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_BCN_EXP_WIN, 32);

			rt2x00_set_field32(&reg, TBTT_SYNC_CFG_TBTT_ADJUST, 16);

			rt2800_register_write(rt2x00dev, TBTT_SYNC_CFG, reg);

		}

	}



	if (flags & CONFIG_UPDATE_MAC) {