From patchwork Tue Jul 9 08:38:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 811750 Received: from nbd.name (nbd.name [46.4.11.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D310615358A for ; Tue, 9 Jul 2024 08:38:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.4.11.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720514327; cv=none; b=fCOXcJ1F+yKL1KzkMXE09WbgLIWeRBW2H6/3KdirNRakORHrnnD194MBEnXh7dSi3zPS2ya+MThclrznnoCT90MgDQZx181hSLQqhoqwB0fDcQlO3nuib0JP45rytH+5aaiXMvFnMHBYnIlDjQXxii4jTWUrdslvhpJ8hj1VbRs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720514327; c=relaxed/simple; bh=4qM7MDn6eYZpCd2hlyPZ0hPh3y/u6kcsPd1PAqv2TSg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jNRCSCmDLDmIb955kZyC9rJzRUOcFtCMfHXWPffAvyI20IUDxpoPG5CMXaASs+kcjm7Sjvut9rLOjcbwFrK98auFcr/RlXUbqnq62q72Os9ewzDC7TYHpv67gbxtiIIG/20wvz/62EKxSZ7WvDiuXesNum7VP+O4RUBMuhFPkoA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nbd.name; spf=none smtp.mailfrom=nbd.name; dkim=pass (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b=uNp4WhEX; arc=none smtp.client-ip=46.4.11.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=nbd.name Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=nbd.name Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=nbd.name header.i=@nbd.name header.b="uNp4WhEX" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=OVOtZ0ZXML16TWb4NK4o5kmz91UtChMetMgVLn+f9Ns=; b=uNp4WhEXCtO3tXC/+NXmtSk3eI HpgOOn8baOf7aaJSHDtJ8AbJ5LeAW5kxD22DTkRY8lWX0cZQHxaEB3tMfVPWbuJHW94NucLvajih8 vqkSKE2HTTIbYWD/WRjIjxONOSVFj7pZaJ2/cQF+CNkP+3l4E+8jf3iloGuueHJzYz7s=; Received: from p54ae937c.dip0.t-ipconnect.de ([84.174.147.124] helo=localhost.localdomain) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.96) (envelope-from ) id 1sR6My-004Ln4-2O; Tue, 09 Jul 2024 10:38:40 +0200 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: johannes@sipsolutions.net, quic_adisi@quicinc.com, quic_periyasa@quicinc.com, ath12k@lists.infradead.org Subject: [PATCH v5 04/10] wifi: cfg80211: add helper for checking if a chandef is valid on a radio Date: Tue, 9 Jul 2024 10:38:32 +0200 Message-ID: <7c8ea146feb6f37cee62e5ba6be5370403695797.1720514221.git-series.nbd@nbd.name> X-Mailer: git-send-email 2.44.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Check if the full channel width is in the radio's frequency range. Signed-off-by: Felix Fietkau --- include/net/cfg80211.h | 9 +++++++++ net/wireless/util.c | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 44 insertions(+) diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 4767e2c76b01..75c5798a0646 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -6509,6 +6509,15 @@ static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan) } /** + * cfg80211_radio_chandef_valid - Check if the radio supports the chandef + * + * @radio: wiphy radio + * @chandef: chandef for current channel + */ +bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio, + const struct cfg80211_chan_def *chandef); + +/** * ieee80211_get_response_rate - get basic rate for a given rate * * @sband: the band to look for rates in diff --git a/net/wireless/util.c b/net/wireless/util.c index 2492f259621f..9a7c3adc8a3b 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -2886,3 +2886,38 @@ cfg80211_get_iftype_ext_capa(struct wiphy *wiphy, enum nl80211_iftype type) return NULL; } EXPORT_SYMBOL(cfg80211_get_iftype_ext_capa); + +static bool +ieee80211_radio_freq_range_valid(const struct wiphy_radio *radio, + u32 freq, u32 width) +{ + const struct wiphy_radio_freq_range *r; + int i; + + for (i = 0; i < radio->n_freq_range; i++) { + r = &radio->freq_range[i]; + if (freq - width / 2 >= r->start_freq && + freq + width / 2 <= r->end_freq) + return true; + } + + return false; +} + +bool cfg80211_radio_chandef_valid(const struct wiphy_radio *radio, + const struct cfg80211_chan_def *chandef) +{ + u32 freq, width; + + freq = ieee80211_chandef_to_khz(chandef); + width = nl80211_chan_width_to_mhz(chandef->width); + if (!ieee80211_radio_freq_range_valid(radio, freq, width)) + return false; + + freq = MHZ_TO_KHZ(chandef->center_freq2); + if (freq && !ieee80211_radio_freq_range_valid(radio, freq, width)) + return false; + + return true; +} +EXPORT_SYMBOL(cfg80211_radio_chandef_valid);