From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:53097 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753324Ab1DRNfr (ORCPT ); Mon, 18 Apr 2011 09:35:47 -0400 Received: by mail-fx0-f46.google.com with SMTP id 17so2833789fxm.19 for ; Mon, 18 Apr 2011 06:35:46 -0700 (PDT) From: Ivo van Doorn To: "John W. Linville" Subject: [PATCH 05/23] rt2x00: Use correct TBTT_SYNC config in AP mode Date: Mon, 18 Apr 2011 15:28:04 +0200 Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com References: <201104181526.01722.IvDoorn@gmail.com> <201104181527.06956.IvDoorn@gmail.com> <201104181527.44542.IvDoorn@gmail.com> In-Reply-To: <201104181527.44542.IvDoorn@gmail.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Message-Id: <201104181528.05047.IvDoorn@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Helmut Schaa 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 Signed-off-by: Ivo van Doorn --- drivers/net/wireless/rt2x00/rt2800lib.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index c6f5584..e0fa559 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -1245,6 +1245,25 @@ void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf, rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); rt2x00_set_field32(®, 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, ®); + rt2x00_set_field32(®, TBTT_SYNC_CFG_BCN_CWMIN, 0); + rt2x00_set_field32(®, TBTT_SYNC_CFG_BCN_AIFSN, 1); + rt2x00_set_field32(®, TBTT_SYNC_CFG_BCN_EXP_WIN, 32); + rt2x00_set_field32(®, TBTT_SYNC_CFG_TBTT_ADJUST, 0); + rt2800_register_write(rt2x00dev, TBTT_SYNC_CFG, reg); + } else { + rt2800_register_read(rt2x00dev, TBTT_SYNC_CFG, ®); + rt2x00_set_field32(®, TBTT_SYNC_CFG_BCN_CWMIN, 4); + rt2x00_set_field32(®, TBTT_SYNC_CFG_BCN_AIFSN, 2); + rt2x00_set_field32(®, TBTT_SYNC_CFG_BCN_EXP_WIN, 32); + rt2x00_set_field32(®, TBTT_SYNC_CFG_TBTT_ADJUST, 16); + rt2800_register_write(rt2x00dev, TBTT_SYNC_CFG, reg); + } } if (flags & CONFIG_UPDATE_MAC) { -- 1.7.2.3