diff options
-rw-r--r-- | drivers/net/wireless/ath/regd.c | 101 |
1 files changed, 63 insertions, 38 deletions
diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index 3d596e25ba82..f4bb9295b6c6 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -178,6 +178,47 @@ static bool ath_is_radar_freq(u16 center_freq) return (center_freq >= 5260 && center_freq <= 5700); } +static void ath_force_clear_no_ir_chan(struct wiphy *wiphy, + struct ieee80211_channel *ch) +{ + const struct ieee80211_reg_rule *reg_rule; + + reg_rule = freq_reg_info(wiphy, ch->center_freq); + if (IS_ERR(reg_rule)) + return; + + if (!(reg_rule->flags & NL80211_RRF_NO_IR)) + if (ch->flags & IEEE80211_CHAN_NO_IR) + ch->flags &= ~IEEE80211_CHAN_NO_IR; +} + +static void ath_force_clear_no_ir_freq(struct wiphy *wiphy, u16 center_freq) +{ + struct ieee80211_channel *ch; + + ch = ieee80211_get_channel(wiphy, center_freq); + if (!ch) + return; + + ath_force_clear_no_ir_chan(wiphy, ch); +} + +static void ath_force_no_ir_chan(struct ieee80211_channel *ch) +{ + ch->flags |= IEEE80211_CHAN_NO_IR; +} + +static void ath_force_no_ir_freq(struct wiphy *wiphy, u16 center_freq) +{ + struct ieee80211_channel *ch; + + ch = ieee80211_get_channel(wiphy, center_freq); + if (!ch) + return; + + ath_force_no_ir_chan(ch); +} + /* * N.B: These exception rules do not apply radar freqs. * @@ -235,54 +276,38 @@ ath_reg_apply_beaconing_flags(struct wiphy *wiphy, } -/* Allows active scan scan on Ch 12 and 13 */ +/** + * ath_reg_apply_active_scan_flags() + * @wiphy: the wiphy to use + * @initiator: the regulatory hint initiator + * + * If no country IE has been received always enable passive scan + * and no-ibss on these channels. This is only done for specific + * regulatory SKUs. + * + * If a country IE has been received check its rule for this + * channel first before enabling active scan. The passive scan + * would have been enforced by the initial processing of our + * custom regulatory domain. + */ static void ath_reg_apply_active_scan_flags(struct wiphy *wiphy, enum nl80211_reg_initiator initiator) { struct ieee80211_supported_band *sband; - struct ieee80211_channel *ch; - const struct ieee80211_reg_rule *reg_rule; sband = wiphy->bands[IEEE80211_BAND_2GHZ]; if (!sband) return; - /* - * If no country IE has been received always enable passive scan - * and no-ibss on these channels. This is only done for specific - * regulatory SKUs. - */ - if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) { - ch = &sband->channels[11]; /* CH 12 */ - ch->flags |= IEEE80211_CHAN_NO_IR; - - ch = &sband->channels[12]; /* CH 13 */ - ch->flags |= IEEE80211_CHAN_NO_IR; - return; - } - - /* - * If a country IE has been received check its rule for this - * channel first before enabling active scan. The passive scan - * would have been enforced by the initial processing of our - * custom regulatory domain. - */ - - ch = &sband->channels[11]; /* CH 12 */ - reg_rule = freq_reg_info(wiphy, ch->center_freq); - if (!IS_ERR(reg_rule)) { - if (!(reg_rule->flags & NL80211_RRF_NO_IR)) - if (ch->flags & IEEE80211_CHAN_NO_IR) - ch->flags &= ~IEEE80211_CHAN_NO_IR; - } - - ch = &sband->channels[12]; /* CH 13 */ - reg_rule = freq_reg_info(wiphy, ch->center_freq); - if (!IS_ERR(reg_rule)) { - if (!(reg_rule->flags & NL80211_RRF_NO_IR)) - if (ch->flags & IEEE80211_CHAN_NO_IR) - ch->flags &= ~IEEE80211_CHAN_NO_IR; + switch(initiator) { + case NL80211_REGDOM_SET_BY_COUNTRY_IE: + ath_force_clear_no_ir_freq(wiphy, 2467); + ath_force_clear_no_ir_freq(wiphy, 2472); + break; + default: + ath_force_no_ir_freq(wiphy, 2467); + ath_force_no_ir_freq(wiphy, 2472); } } |