56 lines
1.6 KiB
Diff
56 lines
1.6 KiB
Diff
From: Felix Fietkau <nbd@openwrt.org>
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Date: Wed, 22 Oct 2014 15:21:22 +0200
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Subject: [PATCH] ath: use CTL region from cfg80211 if unset in EEPROM
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Many AP devices do not have the proper regulatory domain programmed in
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EEPROM. Instead they expect the software to set the appropriate region.
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For these devices, the country code defaults to US, and the driver uses
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the US CTL tables as well.
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On devices bought in Europe this can lead to tx power being set too high
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on the band edges, even if the cfg80211 regdomain is set correctly.
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Fix this issue by taking into account the DFS region, but only when the
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EEPROM regdomain is set to default.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/net/wireless/ath/ath.h
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+++ b/drivers/net/wireless/ath/ath.h
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@@ -80,6 +80,7 @@ struct reg_dmn_pair_mapping {
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struct ath_regulatory {
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char alpha2[2];
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+ enum nl80211_dfs_regions region;
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u16 country_code;
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u16 max_power_level;
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u16 current_rd;
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--- a/drivers/net/wireless/ath/regd.c
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+++ b/drivers/net/wireless/ath/regd.c
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@@ -515,6 +515,7 @@ void ath_reg_notifier_apply(struct wiphy
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if (!request)
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return;
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+ reg->region = request->dfs_region;
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switch (request->initiator) {
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case NL80211_REGDOM_SET_BY_CORE:
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/*
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@@ -779,6 +780,19 @@ u32 ath_regd_get_band_ctl(struct ath_reg
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return SD_NO_CTL;
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}
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+ if (ath_regd_get_eepromRD(reg) == CTRY_DEFAULT) {
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+ switch (reg->region) {
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+ case NL80211_DFS_FCC:
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+ return CTL_FCC;
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+ case NL80211_DFS_ETSI:
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+ return CTL_ETSI;
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+ case NL80211_DFS_JP:
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+ return CTL_MKK;
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+ default:
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+ break;
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+ }
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+ }
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+
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switch (band) {
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case IEEE80211_BAND_2GHZ:
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return reg->regpair->reg_2ghz_ctl;
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