void mt76_set_channel(struct mt76_dev *dev)
{
struct ieee80211_hw *hw = dev->hw;
struct cfg80211_chan_def *chandef = &hw->conf.chandef;
struct mt76_channel_state *state;
bool offchannel = hw->conf.flags & IEEE80211_CONF_OFFCHANNEL;
int timeout = HZ / 5;
if (offchannel)
set_bit(MT76_OFFCHANNEL, &dev->state);
else
clear_bit(MT76_OFFCHANNEL, &dev->state);
wait_event_timeout(dev->tx_wait, !mt76_has_tx_pending(dev), timeout);
if (dev->drv->update_survey)
dev->drv->update_survey(dev);
dev->chandef = *chandef;
if (!offchannel)
dev->main_chan = chandef->chan;
if (chandef->chan != dev->main_chan) {
state = mt76_channel_state(dev, chandef->chan);
memset(state, 0, sizeof(*state));
}
}
void mt76x2_update_channel(struct mt76_dev *mdev)
{
struct mt76x2_dev *dev = container_of(mdev, struct mt76x2_dev, mt76);
struct mt76_channel_state *state;
u32 active, busy;
state = mt76_channel_state(&dev->mt76, dev->mt76.chandef.chan);
busy = mt76_rr(dev, MT_CH_BUSY);
active = busy + mt76_rr(dev, MT_CH_IDLE);
spin_lock_bh(&dev->mt76.cc_lock);
state->cc_busy += busy;
state->cc_active += active;
spin_unlock_bh(&dev->mt76.cc_lock);
}
int mt76_get_survey(struct ieee80211_hw *hw, int idx,
struct survey_info *survey)
{
struct mt76_dev *dev = hw->priv;
struct mt76_sband *sband;
struct ieee80211_channel *chan;
struct mt76_channel_state *state;
int ret = 0;
if (idx == 0 && dev->drv->update_survey)
dev->drv->update_survey(dev);
sband = &dev->sband_2g;
if (idx >= sband->sband.n_channels) {
idx -= sband->sband.n_channels;
sband = &dev->sband_5g;
}
if (idx >= sband->sband.n_channels)
return -ENOENT;
chan = &sband->sband.channels[idx];
state = mt76_channel_state(dev, chan);
memset(survey, 0, sizeof(*survey));
survey->channel = chan;
survey->filled = SURVEY_INFO_TIME | SURVEY_INFO_TIME_BUSY;
if (chan == dev->main_chan)
survey->filled |= SURVEY_INFO_IN_USE;
spin_lock_bh(&dev->cc_lock);
survey->time = div_u64(state->cc_active, 1000);
survey->time_busy = div_u64(state->cc_busy, 1000);
spin_unlock_bh(&dev->cc_lock);
return ret;
}
