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rt2x00: Use correct TBTT_SYNC config in AP mode

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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: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Helmut Schaa 2011-04-18 15:28:04 +02:00 committed by John W. Linville
parent 10e11568ca
commit 15a533c47f
1 changed files with 19 additions and 0 deletions
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19
drivers/net/wireless/rt2x00/rt2800lib.c
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@ -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) {