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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-Type: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=b+3zxlOBCcmazhoP5SaNH1BPVhwFyt1jXYtw03Wf7II=; b=T1Z/0sCBLgmvWJmmFT6KxM6xxH WwxRKVnAgLWGAAPaLU3AWIX2I7Hqcwa3jmNnYYbkI7hPUUhCDgl8/XEGyCR0EVxDABgiSUhs7EU4q Tb8cS+5cByAWZOxkGo0tcCGtIoBK2nVfzIjFl/OwHuIOKgoQgTLkUWcqztkcsarf2EIG9E56JQgbU mblkKqbpwmB+xW+PijCstEDxdJWUu/7b91OBkYez5Xu26ggM+0R8anVHJ2zjRxQop+QSWY9E4iCX2 GV7O1QYxuP2phPJKTkA5vLv/LzCMmjWGAbSQMlteAkQSNr6Zqbbd6i7F0fYck940rsdsyiitKrb15 C5mst07Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8e68-00HO0P-U3; Wed, 28 Jul 2021 07:35:24 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8e64-00HNzV-Vj for linux-mediatek@lists.infradead.org; Wed, 28 Jul 2021 07:35:23 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 61FCF60F91; Wed, 28 Jul 2021 07:35:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627457719; bh=G0rWKfDaNY22lUY/PXw1Ue16UDla1YpF0to/w+YJYmA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=C2X0/92gKczgOgV7pr5CmsjZMi1pWRCH+2iEAXHzB5YcT/OxKjWy8EgiDdyhVpXcQ jYCa2fBHumQM0TdDUWtF7VO07J9QfBT7jZWKO1S2sBC8F5hnlHcQxaZdV1QmroSj0c wrDFpAOtbrZLtOVi3Yw+sxYvc8bacaEVFvOfbJivpkjjQTJewgaTgF+wWDhNiUhOkx WMHbflBIV+x5jGazWuFktjoTmvHq5jGMikf2lPNaMnrULd5hdI+rJOyhTb1TLQBG9y zYgnnFnY8kuHcyHStsnS2yGhlCdUjvC8YEYntQ6FDIBsLSoyhTWH7S6L1rW+IoNv5e VRwSojRIAne1w== Date: Wed, 28 Jul 2021 09:35:15 +0200 From: Lorenzo Bianconi To: sean.wang@mediatek.com Cc: nbd@nbd.name, lorenzo.bianconi@redhat.com, Soul.Huang@mediatek.com, YN.Chen@mediatek.com, Leon.Yen@mediatek.com, Eric-SY.Chang@mediatek.com, Deren.Wu@mediatek.com, km.lin@mediatek.com, robin.chiu@mediatek.com, ch.yeh@mediatek.com, posh.sun@mediatek.com, Eric.Liang@mediatek.com, Stella.Chang@mediatek.com, jemele@google.com, yenlinlai@google.com, linux-wireless@vger.kernel.org, linux-mediatek@lists.infradead.org Subject: Re: [PATCH 2/2] mt76: connac: add support maximum regulatory Tx power Message-ID: References: <1627426757-14811-1-git-send-email-sean.wang@mediatek.com> <1627426757-14811-2-git-send-email-sean.wang@mediatek.com> MIME-Version: 1.0 In-Reply-To: <1627426757-14811-2-git-send-email-sean.wang@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210728_003521_100288_1FEB47CD X-CRM114-Status: GOOD ( 19.47 ) 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: , Content-Type: multipart/mixed; boundary="===============1483824277503331092==" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org --===============1483824277503331092== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="HD5cfJbB7Qv0wneP" Content-Disposition: inline --HD5cfJbB7Qv0wneP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > From: YN Chen >=20 > 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. >=20 > Co-developed-by: Sean Wang > Signed-off-by: Sean Wang > Signed-off-by: YN Chen > --- > .../wireless/mediatek/mt76/mt76_connac_mcu.c | 43 ++++++++++++++++++- > 1 file changed, 41 insertions(+), 2 deletions(-) >=20 > diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drive= rs/net/wireless/mediatek/mt76/mt76_connac_mcu.c > index d71393b1c5e6..84f42ce12626 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_ph= y *phy, > return target_power; > } > =20 > +static s8 mt76_connac_get_ch_power(struct mt76_phy *phy, > + struct ieee80211_channel *chan, > + s8 target_power) > +{ > + struct mt76_dev *dev =3D phy->dev; is it used? > + struct ieee80211_supported_band *sband; > + int i; > + > + switch (chan->band) { > + case NL80211_BAND_2GHZ: > + sband =3D &phy->sband_2g.sband; > + break; > + case NL80211_BAND_5GHZ: > + sband =3D &phy->sband_5g.sband; > + break; > + default: > + return target_power; > + } > + > + for (i =3D 0; i < sband->n_channels; i++) { > + struct ieee80211_channel *ch =3D &sband->channels[i]; > + > + if (ch->hw_value =3D=3D chan->hw_value) { > + if (!(ch->flags & IEEE80211_CHAN_DISABLED)) { > + int power =3D 2 * ch->max_reg_power; > + > + if (power > 127 || power < -127) > + power =3D 127; please correct me if I am wrong, but I guess the limit for mt7663 should be= 63, isn't it? Regards, Lorenzo > + target_power =3D 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 =3D ch_list[idx], > .band =3D band, > }; > - s8 sar_power; > + s8 reg_power, sar_power; > =20 > + reg_power =3D mt76_connac_get_ch_power(phy, &chan, > + tx_power); > sar_power =3D mt76_connac_get_sar_power(phy, &chan, > - tx_power); > + reg_power); > =20 > mt76_get_rate_power_limits(phy, &chan, &limits, > sar_power); > --=20 > 2.25.1 >=20 --HD5cfJbB7Qv0wneP Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTquNwa3Txd3rGGn7Y6cBh0uS2trAUCYQEIsAAKCRA6cBh0uS2t rOt8AP95ov/z4ReB4ZY7fTytbfpDFkXdZwnkFTj4ewwteOrG/gD9GGC/FkHM7ZVY kUBejtiUfKraUVcityNQO/PMzF83Qwo= =cRqC -----END PGP SIGNATURE----- --HD5cfJbB7Qv0wneP-- --===============1483824277503331092== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek --===============1483824277503331092==--