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[209.132.180.67]) by mx.google.com with ESMTP id cd3si337192plb.228.2019.06.25.05.59.30; Tue, 25 Jun 2019 05:59:45 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@broadcom.com header.s=dkimrelay header.b="Udw/yJRx"; spf=pass (google.com: best guess record for domain of linux-wireless-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=broadcom.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729770AbfFYLPf (ORCPT + 99 others); Tue, 25 Jun 2019 07:15:35 -0400 Received: from rnd-relay.smtp.broadcom.com ([192.19.229.170]:44898 "EHLO rnd-relay.smtp.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727964AbfFYLPf (ORCPT ); Tue, 25 Jun 2019 07:15:35 -0400 X-Greylist: delayed 302 seconds by postgrey-1.27 at vger.kernel.org; Tue, 25 Jun 2019 07:15:34 EDT Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.224.233]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id D120530C014; Tue, 25 Jun 2019 04:10:30 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.10.3 rnd-relay.smtp.broadcom.com D120530C014 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1561461030; bh=rpQAs7STKtoHtjNm9J3r/4stIf2rSMHlSRSwPmzr0wA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Udw/yJRx0W80JmHqrkI+bmTIoZXWvpPDvQQoJOlt4i1OucuwsHeVO+fbToETLWQ8c ynIoA0QkwehD3Dyk9dIjdI1KRUyjksF40Mgc1TiKO0CD5g+x/HWrHs3WfSv305z4Ds FfxtSafTXqECX9dDMNTOhvoXMTyYt8M7mNOz8Dj0= Received: from bld-bun-01.bun.broadcom.com (bld-bun-01.bun.broadcom.com [10.176.128.83]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id 2C46260D7B; Tue, 25 Jun 2019 04:10:31 -0700 (PDT) Received: by bld-bun-01.bun.broadcom.com (Postfix, from userid 25152) id CC541B0025F; Tue, 25 Jun 2019 13:10:29 +0200 (CEST) From: Arend van Spriel To: Johannes Berg Cc: linux-wireless@vger.kernel.org, Arend van Spriel Subject: [RFC V2 3/8] cfg80211: util: add 6GHz channel to freq conversion and vice versa Date: Tue, 25 Jun 2019 13:10:22 +0200 Message-Id: <1561461027-10793-4-git-send-email-arend.vanspriel@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1561461027-10793-1-git-send-email-arend.vanspriel@broadcom.com> References: <1561461027-10793-1-git-send-email-arend.vanspriel@broadcom.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Extend the functions ieee80211_channel_to_frequency() and ieee80211_frequency_to_channel() to support 6GHz band according specification in 802.11ax D4.1 27.3.22.2. Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Leon Zegers Signed-off-by: Arend van Spriel --- net/wireless/util.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/net/wireless/util.c b/net/wireless/util.c index 1c39d6a..4e633d4 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -91,6 +91,11 @@ int ieee80211_channel_to_frequency(int chan, enum nl80211_band band) else return 5000 + chan * 5; break; + case NL80211_BAND_6GHZ: + /* see 802.11ax D4.1 27.3.22.2 */ + if (chan <= 253) + return 5940 + chan * 5; + break; case NL80211_BAND_60GHZ: if (chan < 7) return 56160 + chan * 2160; @@ -111,8 +116,11 @@ int ieee80211_frequency_to_channel(int freq) return (freq - 2407) / 5; else if (freq >= 4910 && freq <= 4980) return (freq - 4000) / 5; - else if (freq <= 45000) /* DMG band lower limit */ + else if (freq < 5940) return (freq - 5000) / 5; + else if (freq <= 45000) /* DMG band lower limit */ + /* see 802.11ax D4.1 27.3.22.2 */ + return (freq - 5940) / 5; else if (freq >= 58320 && freq <= 70200) return (freq - 56160) / 2160; else -- 1.9.1