/* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */
static void ath_reg_apply_radar_flags(struct wiphy *wiphy)
{
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
unsigned int i;
if (!wiphy->bands[IEEE80211_BAND_5GHZ])
return;
sband = wiphy->bands[IEEE80211_BAND_5GHZ];
for (i = 0; i < sband->n_channels; i++) {
ch = &sband->channels[i];
if (!ath_is_radar_freq(ch->center_freq))
continue;
/* We always enable radar detection/DFS on this
* frequency range. Additionally we also apply on
* this frequency range:
* - If STA mode does not yet have DFS supports disable
* active scanning
* - If adhoc mode does not support DFS yet then
* disable adhoc in the frequency.
* - If AP mode does not yet support radar detection/DFS
* do not allow AP mode
*/
if (!(ch->flags & IEEE80211_CHAN_DISABLED))
ch->flags |= IEEE80211_CHAN_RADAR |
IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN;
}
}
/*
* N.B: These exception rules do not apply radar freqs.
*
* - We enable adhoc (or beaconing) if allowed by 11d
* - We enable active scan if the channel is allowed by 11d
* - If no country IE has been processed and a we determine we have
* received a beacon on a channel we can enable active scan and
* adhoc (or beaconing).
*/
static void
ath_reg_apply_beaconing_flags(struct wiphy *wiphy,
enum nl80211_reg_initiator initiator)
{
enum ieee80211_band band;
struct ieee80211_supported_band *sband;
const struct ieee80211_reg_rule *reg_rule;
struct ieee80211_channel *ch;
unsigned int i;
u32 bandwidth = 0;
int r;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!wiphy->bands[band])
continue;
sband = wiphy->bands[band];
for (i = 0; i < sband->n_channels; i++) {
ch = &sband->channels[i];
if (ath_is_radar_freq(ch->center_freq) ||
(ch->flags & IEEE80211_CHAN_RADAR))
continue;
if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
r = freq_reg_info(wiphy,
ch->center_freq,
bandwidth,
®_rule);
if (r)
continue;
/*
* If 11d had a rule for this channel ensure
* we enable adhoc/beaconing if it allows us to
* use it. Note that we would have disabled it
* by applying our static world regdomain by
* default during init, prior to calling our
* regulatory_hint().
*/
if (!(reg_rule->flags &
NL80211_RRF_NO_IBSS))
ch->flags &=
~IEEE80211_CHAN_NO_IBSS;
if (!(reg_rule->flags &
NL80211_RRF_PASSIVE_SCAN))
ch->flags &=
~IEEE80211_CHAN_PASSIVE_SCAN;
} else {
if (ch->beacon_found)
ch->flags &= ~(IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN);
}
}
}
}
static void
ath_reg_apply_beaconing_flags(struct wiphy *wiphy,
enum nl80211_reg_initiator initiator)
{
enum ieee80211_band band;
struct ieee80211_supported_band *sband;
const struct ieee80211_reg_rule *reg_rule;
struct ieee80211_channel *ch;
unsigned int i;
u32 bandwidth = 0;
int r;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
if (!wiphy->bands[band])
continue;
sband = wiphy->bands[band];
for (i = 0; i < sband->n_channels; i++) {
ch = &sband->channels[i];
if (ath_is_radar_freq(ch->center_freq) ||
(ch->flags & IEEE80211_CHAN_RADAR))
continue;
if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
r = freq_reg_info(wiphy,
ch->center_freq,
bandwidth,
®_rule);
if (r)
continue;
if (!(reg_rule->flags &
NL80211_RRF_NO_IBSS))
ch->flags &=
~IEEE80211_CHAN_NO_IBSS;
if (!(reg_rule->flags &
NL80211_RRF_PASSIVE_SCAN))
ch->flags &=
~IEEE80211_CHAN_PASSIVE_SCAN;
} else {
if (ch->beacon_found)
ch->flags &= ~(IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN);
}
}
}
}
static void ath_reg_apply_radar_flags(struct wiphy *wiphy)
{
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
unsigned int i;
if (!wiphy->bands[IEEE80211_BAND_5GHZ])
return;
sband = wiphy->bands[IEEE80211_BAND_5GHZ];
for (i = 0; i < sband->n_channels; i++) {
ch = &sband->channels[i];
if (!ath_is_radar_freq(ch->center_freq))
continue;
if (!(ch->flags & IEEE80211_CHAN_DISABLED))
ch->flags |= IEEE80211_CHAN_RADAR |
IEEE80211_CHAN_NO_IBSS |
IEEE80211_CHAN_PASSIVE_SCAN;
}
}
static void
__ath_reg_apply_beaconing_flags(struct wiphy *wiphy,
struct ath_regulatory *reg,
enum nl80211_reg_initiator initiator,
struct ieee80211_channel *ch)
{
if (ath_is_radar_freq(ch->center_freq) ||
(ch->flags & IEEE80211_CHAN_RADAR))
return;
switch (initiator) {
case NL80211_REGDOM_SET_BY_COUNTRY_IE:
ath_force_clear_no_ir_chan(wiphy, ch);
break;
case NL80211_REGDOM_SET_BY_USER:
if (ath_reg_dyn_country_user_allow(reg))
ath_force_clear_no_ir_chan(wiphy, ch);
break;
default:
if (ch->beacon_found)
ch->flags &= ~IEEE80211_CHAN_NO_IR;
}
}