From patchwork Mon Mar 28 11:32:01 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ivo van Doorn X-Patchwork-Id: 668211 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p2SBb0pv010589 for ; Mon, 28 Mar 2011 11:37:00 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753224Ab1C1Lg6 (ORCPT ); Mon, 28 Mar 2011 07:36:58 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:63099 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753210Ab1C1Lg5 (ORCPT ); Mon, 28 Mar 2011 07:36:57 -0400 Received: by mail-wy0-f174.google.com with SMTP id 21so2744896wya.19 for ; Mon, 28 Mar 2011 04:36:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:to:subject:date:user-agent:cc:references :in-reply-to:mime-version:content-type:content-transfer-encoding :message-id; bh=rqsKS/jt8YktNrbQrJshic0CGy3UMkCiYeIwzGSQiBk=; b=NtF4H3qiRbVzvK5hOV701fyIyl3mjZ2NUdLagaYghhIXr4Uepa62LEFQCxTugfD7k4 Aksf4gqHR+YSwl2ImBGAcJg2/MAHdHysRZZF+DFztKtEGI/DhW3hm7+TOdL0bmDmX3nJ V8a94A3GqgX4Qvbz5DVntJrWLB6iDqFVQmbXI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:cc:references:in-reply-to :mime-version:content-type:content-transfer-encoding:message-id; b=FgVen6rZEj7+TiHWlaZtzTkqfenYFETG773ZTDaDvJIqIfAiSozzMSvTjiboBOUhJU kTYyBQmzEXWGomEQdFh4hxOZ9i0Dvulq72Gt7nwWh3qKHs7GJH/xRmJZiiW6mVlI4x68 xBPbqoZbqStyKCpZzlAn8ITVjzCgEN8OyNq5M= Received: by 10.216.155.205 with SMTP id j55mr2531668wek.90.1301312216853; Mon, 28 Mar 2011 04:36:56 -0700 (PDT) Received: from localhost.localdomain (g121037.upc-g.chello.nl [80.57.121.37]) by mx.google.com with ESMTPS id h11sm1945140wbc.9.2011.03.28.04.36.55 (version=SSLv3 cipher=OTHER); Mon, 28 Mar 2011 04:36:56 -0700 (PDT) From: Ivo van Doorn To: "John W. Linville" Subject: [PATCH 06/13] rt2x00: Don't recalculate HT40 compensation for each rate Date: Mon, 28 Mar 2011 13:32:01 +0200 User-Agent: KMail/1.13.5 (Linux/2.6.32.26-175.fc12.x86_64; KDE/4.4.5; x86_64; ; ) Cc: linux-wireless@vger.kernel.org, users@rt2x00.serialmonkey.com References: <201103281329.45470.IvDoorn@gmail.com> <201103281331.00838.IvDoorn@gmail.com> <201103281331.31575.IvDoorn@gmail.com> In-Reply-To: <201103281331.31575.IvDoorn@gmail.com> MIME-Version: 1.0 Message-Id: <201103281332.01948.IvDoorn@gmail.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Mon, 28 Mar 2011 11:37:00 +0000 (UTC) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 2f8af7a..26ac892 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -1861,7 +1861,8 @@ static u8 rt2800_compesate_txpower(struct rt2x00_dev *rt2x00dev, int is_rate_b, enum ieee80211_band band, int power_level, - u8 txpower) + u8 txpower, + int delta) { u32 reg; u16 eeprom; @@ -1869,13 +1870,10 @@ static u8 rt2800_compesate_txpower(struct rt2x00_dev *rt2x00dev, u8 eirp_txpower; u8 eirp_txpower_criterion; u8 reg_limit; - int bw_comp; if (!((band == IEEE80211_BAND_5GHZ) && is_rate_b)) return txpower; - bw_comp = rt2800_get_txpower_bw_comp(rt2x00dev, band); - if (test_bit(CONFIG_SUPPORT_POWER_LIMIT, &rt2x00dev->flags)) { /* * Check if eirp txpower exceed txpower_limit. @@ -1898,14 +1896,14 @@ static u8 rt2800_compesate_txpower(struct rt2x00_dev *rt2x00dev, EEPROM_EIRP_MAX_TX_POWER_5GHZ); eirp_txpower = eirp_txpower_criterion + (txpower - criterion) + - (is_rate_b ? 4 : 0) + bw_comp; + (is_rate_b ? 4 : 0) + delta; reg_limit = (eirp_txpower > power_level) ? (eirp_txpower - power_level) : 0; } else reg_limit = 0; - return txpower + bw_comp - reg_limit; + return txpower + delta - reg_limit; } static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, @@ -1919,6 +1917,12 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, u32 offset; enum ieee80211_band band = conf->channel->band; int power_level = conf->power_level; + int delta; + + /* + * Calculate HT40 compensation delta + */ + delta = rt2800_get_txpower_bw_comp(rt2x00dev, band); /* * set to normal bbp tx power control mode: +/- 0dBm @@ -1948,7 +1952,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE0); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE0, txpower); /* @@ -1959,7 +1963,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE1); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE1, txpower); /* @@ -1970,7 +1974,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE2); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE2, txpower); /* @@ -1981,7 +1985,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE3); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE3, txpower); /* read the next four txpower values */ @@ -1997,7 +2001,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE0); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE4, txpower); /* @@ -2008,7 +2012,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE1); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE5, txpower); /* @@ -2019,7 +2023,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE2); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE6, txpower); /* @@ -2030,7 +2034,7 @@ static void rt2800_config_txpower(struct rt2x00_dev *rt2x00dev, txpower = rt2x00_get_field16(eeprom, EEPROM_TXPOWER_BYRATE_RATE3); txpower = rt2800_compesate_txpower(rt2x00dev, is_rate_b, band, - power_level, txpower); + power_level, txpower, delta); rt2x00_set_field32(®, TX_PWR_CFG_RATE7, txpower); rt2800_register_write(rt2x00dev, offset, reg);