Return-path: Received: from wolverine01.qualcomm.com ([199.106.114.254]:26696 "EHLO wolverine01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754748AbdDLRtt (ORCPT ); Wed, 12 Apr 2017 13:49:49 -0400 From: Mohammed Shafi Shajakhan To: CC: , , "Mohammed Shafi Shajakhan" Subject: [PATCH] ath: Fix updating radar flags for coutry code India Date: Wed, 12 Apr 2017 23:19:37 +0530 Message-ID: <1492019377-5556-1-git-send-email-mohammed@qca.qualcomm.com> (sfid-20170412_195022_277349_65476CEC) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Mohammed Shafi Shajakhan As per latest regulatory update for India, channel 52, 56, 60, 64 is no longer restricted to DFS. Enabling DFS/no infra flags in driver results in applying all DFS related restrictions (like doing CAC etc before this channel moves to 'available state') for these channels even though the country code is programmed as 'India' in he hardware, fix this by relaxing the frequency range while applying RADAR flags only if the country code is programmed to India. If the frequency range needs to modified based on different country code, ath_is_radar_freq can be extended/modified dynamically. Signed-off-by: Mohammed Shafi Shajakhan --- drivers/net/wireless/ath/regd.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index 43afa83..e25bfdf 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -254,8 +254,12 @@ bool ath_is_49ghz_allowed(u16 regdomain) EXPORT_SYMBOL(ath_is_49ghz_allowed); /* Frequency is one where radar detection is required */ -static bool ath_is_radar_freq(u16 center_freq) +static bool ath_is_radar_freq(u16 center_freq, + struct ath_regulatory *reg) + { + if (reg->country_code == CTRY_INDIA) + return (center_freq >= 5500 && center_freq <= 5700); return (center_freq >= 5260 && center_freq <= 5700); } @@ -306,7 +310,7 @@ static void ath_force_no_ir_freq(struct wiphy *wiphy, u16 center_freq) enum nl80211_reg_initiator initiator, struct ieee80211_channel *ch) { - if (ath_is_radar_freq(ch->center_freq) || + if (ath_is_radar_freq(ch->center_freq, reg) || (ch->flags & IEEE80211_CHAN_RADAR)) return; @@ -395,8 +399,9 @@ static void ath_force_no_ir_freq(struct wiphy *wiphy, u16 center_freq) } } -/* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ -static void ath_reg_apply_radar_flags(struct wiphy *wiphy) +/* Always apply Radar/DFS rules on freq range 5500 MHz - 5700 MHz */ +static void ath_reg_apply_radar_flags(struct wiphy *wiphy, + struct ath_regulatory *reg) { struct ieee80211_supported_band *sband; struct ieee80211_channel *ch; @@ -409,7 +414,7 @@ static void ath_reg_apply_radar_flags(struct wiphy *wiphy) for (i = 0; i < sband->n_channels; i++) { ch = &sband->channels[i]; - if (!ath_is_radar_freq(ch->center_freq)) + if (!ath_is_radar_freq(ch->center_freq, reg)) continue; /* We always enable radar detection/DFS on this * frequency range. Additionally we also apply on @@ -506,7 +511,7 @@ void ath_reg_notifier_apply(struct wiphy *wiphy, struct ath_common *common = container_of(reg, struct ath_common, regulatory); /* We always apply this */ - ath_reg_apply_radar_flags(wiphy); + ath_reg_apply_radar_flags(wiphy, reg); /* * This would happen when we have sent a custom regulatory request @@ -654,7 +659,7 @@ static u16 ath_regd_get_default_country(u16 rd) } wiphy_apply_custom_regulatory(wiphy, regd); - ath_reg_apply_radar_flags(wiphy); + ath_reg_apply_radar_flags(wiphy, reg); ath_reg_apply_world_flags(wiphy, NL80211_REGDOM_SET_BY_DRIVER, reg); return 0; } -- 1.9.1