diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2021-11-21 13:12:25 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-12-19 15:24:00 +0100 |
| commit | 633f77b517ac704086c267b70a6dfe1924cfed0b (patch) | |
| tree | 2ab7be97cb5ac05245118abc250a369c34a8bed3 /drivers/net/wireless/mediatek/mt76/mt76x2/init.c | |
| parent | b3cb885e56d5f64880109da9516ef2df1e9db7b9 (diff) | |
mt76: mt76x02: introduce SAR support
Add SAR spec support to mt76x02 driver to allow configuring SAR power
limitations on the frequency ranges from the userland.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2/init.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2/init.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/init.c b/drivers/net/wireless/mediatek/mt76/mt76x2/init.c index a92a479aebaa..7b01a06d7f8d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2/init.c @@ -8,6 +8,35 @@ #include "eeprom.h" #include "../mt76x02_phy.h" +int mt76x2_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + int err = -EINVAL, power = hw->conf.power_level * 2; + struct mt76x02_dev *dev = hw->priv; + struct mt76_phy *mphy = &dev->mphy; + + mutex_lock(&dev->mt76.mutex); + if (!cfg80211_chandef_valid(&mphy->chandef)) + goto out; + + err = mt76_init_sar_power(hw, sar); + if (err) + goto out; + + dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan, + power); + /* convert to per-chain power for 2x2 devices */ + dev->txpower_conf -= 6; + + if (test_bit(MT76_STATE_RUNNING, &mphy->state)) + mt76x2_phy_set_txpower(dev); +out: + mutex_unlock(&dev->mt76.mutex); + + return err; +} +EXPORT_SYMBOL_GPL(mt76x2_set_sar_specs); + static void mt76x2_set_wlan_state(struct mt76x02_dev *dev, bool enable) { |