From patchwork Wed Aug 4 22:23:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12419865 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71A9EC4338F for ; Wed, 4 Aug 2021 22:31:35 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 21EEF6104F for ; Wed, 4 Aug 2021 22:31:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 21EEF6104F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Bigc6G1w7dTYr1Yl1mbv7gRqXaytRJedgnICp4goFHw=; b=B3dcfLr4+/VRrJ Rk2kSp2k3Hwmi788/beZTgtl+LXp5W08NnyBGdSkdtYTlmdTtKpC+VOPReJJvR7dwTE5E1C26zD4V psIu2y2wdQK+MfzGb0ZgB8xSrfJ5bScjbXFxrE3MgFLAUemM+P1nd6f5gzYRIefKFxWH3fBR3A6ij PdujrGHsoCWD86vUX5GhoCPK4XhHb6I7jIwBi43L6RXI7IDHyq/RwER2alUuaoHGSMkLvAfamQhn8 Lgc6+sOy3WB8y8Te85EN8U8BMCEzn7Dko0ahZGFPGhhU9C5J3MDll19cq0sQ0Bp6G+uHECln1+Dcj Ns3TlJuvlAqvpbqi8XWA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBPQ5-007aQq-1I; Wed, 04 Aug 2021 22:31:25 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mBPQ0-007aQT-Ce for linux-mediatek@lists.infradead.org; Wed, 04 Aug 2021 22:31:21 +0000 X-UUID: b3851bcc4c704fbda560a607a0c08f5d-20210804 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=tyTK14QTgMAskH2cLqwiOYuNxDdD43qX+Wq9o6TC/no=; b=CsFqEDgAkCyF5AZK00j3IAd9rS+tapYjnMJPxg4uiS6JFiYWQCxBdgau3n+n2OlgvkWiN1jAkX8TAgeVqvlX99ox5RMGLe9DK0FDcJuBQsNlEzKLsaSs8kmwFkOJFKyNx+gpxw22R5bXr/Z2ez2w25cua93ZU7UdlFk7VLCigxg=; X-UUID: b3851bcc4c704fbda560a607a0c08f5d-20210804 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 436265311; Wed, 04 Aug 2021 15:31:11 -0700 Received: from MTKMBS02N1.mediatek.inc (172.21.101.77) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 4 Aug 2021 15:23:16 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 5 Aug 2021 06:23:08 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 5 Aug 2021 06:23:02 +0800 From: To: , CC: , , , , , , , , , , , , , , , Subject: [PATCH v2] mt76: connac: add support maximum regulatory Tx power Date: Thu, 5 Aug 2021 06:23:00 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210804_153120_498203_4FA92394 X-CRM114-Status: GOOD ( 14.87 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: YN Chen Consider .max_reg_power in struct ieee80211_channel to limit the maximum power the wireless device allowed to transmit on the corresponding channel according to the regulatory domain. Co-developed-by: Sean Wang Signed-off-by: Sean Wang Signed-off-by: YN Chen --- v2: consider the power limit that can be allowed on mt7663 --- .../wireless/mediatek/mt76/mt76_connac_mcu.c | 43 ++++++++++++++++++- 1 file changed, 41 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index d71393b1c5e6..80987af03efe 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -1773,6 +1773,43 @@ static s8 mt76_connac_get_sar_power(struct mt76_phy *phy, return target_power; } +static s8 mt76_connac_get_ch_power(struct mt76_phy *phy, + struct ieee80211_channel *chan, + s8 target_power) +{ + struct mt76_dev *dev = phy->dev; + struct ieee80211_supported_band *sband; + int i; + + switch (chan->band) { + case NL80211_BAND_2GHZ: + sband = &phy->sband_2g.sband; + break; + case NL80211_BAND_5GHZ: + sband = &phy->sband_5g.sband; + break; + default: + return target_power; + } + + for (i = 0; i < sband->n_channels; i++) { + struct ieee80211_channel *ch = &sband->channels[i]; + + if (ch->hw_value == chan->hw_value) { + if (!(ch->flags & IEEE80211_CHAN_DISABLED)) { + int power = 2 * ch->max_reg_power; + + if (is_mt7663(dev) && (power > 63 || power < -64)) + power = 63; + target_power = min_t(s8, power, target_power); + } + break; + } + } + + return target_power; +} + static int mt76_connac_mcu_rate_txpower_band(struct mt76_phy *phy, enum nl80211_band band) @@ -1840,10 +1877,12 @@ mt76_connac_mcu_rate_txpower_band(struct mt76_phy *phy, .hw_value = ch_list[idx], .band = band, }; - s8 sar_power; + s8 reg_power, sar_power; + reg_power = mt76_connac_get_ch_power(phy, &chan, + tx_power); sar_power = mt76_connac_get_sar_power(phy, &chan, - tx_power); + reg_power); mt76_get_rate_power_limits(phy, &chan, &limits, sar_power);