diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2021-11-23 17:24:31 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-12-19 15:24:01 +0100 |
| commit | 2c70627b09aced3593d8b9419b908f5e1a13318a (patch) | |
| tree | 17ef5cdb355997ce474716ba919ffe17ae79f2a0 | |
| parent | 4bbd6d83afc773f39a4bb49140ac9bbb8934f0c9 (diff) | |
| download | wireless-drivers-next-2c70627b09aced3593d8b9419b908f5e1a13318a.tar.gz | |
mt76: mt7915: introduce SAR support
Add SAR spec support to mt7915 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>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/main.c | 23 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 8 |
2 files changed, 27 insertions, 4 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c index 8c1fa08b628623..31fceeed1a72bf 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c @@ -423,6 +423,28 @@ out: return err; } +static int mt7915_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + struct mt7915_phy *phy = mt7915_hw_phy(hw); + struct mt7915_dev *dev = mt7915_hw_dev(hw); + int err = -EINVAL; + + mutex_lock(&dev->mt76.mutex); + if (!cfg80211_chandef_valid(&phy->mt76->chandef)) + goto out; + + err = mt76_init_sar_power(hw, sar); + if (err) + goto out; + + err = mt7915_mcu_set_txpower_sku(phy); +out: + mutex_unlock(&dev->mt76.mutex); + + return err; +} + static int mt7915_config(struct ieee80211_hw *hw, u32 changed) { struct mt7915_dev *dev = mt7915_hw_dev(hw); @@ -1329,6 +1351,7 @@ const struct ieee80211_ops mt7915_ops = { .sw_scan_complete = mt76_sw_scan_complete, .release_buffered_frames = mt76_release_buffered_frames, .get_txpower = mt76_get_txpower, + .set_sar_specs = mt7915_set_sar_specs, .channel_switch_beacon = mt7915_channel_switch_beacon, .get_stats = mt7915_get_stats, .get_et_sset_count = mt7915_get_et_sset_count, diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index 58ed82a8ad326f..2cb009a3905953 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -3856,11 +3856,11 @@ int mt7915_mcu_set_txpower_sku(struct mt7915_phy *phy) struct mt76_power_limits limits_array; s8 *la = (s8 *)&limits_array; int i, idx, n_chains = hweight8(mphy->antenna_mask); - int tx_power; - - tx_power = hw->conf.power_level * 2 - - mt76_tx_power_nss_delta(n_chains); + int tx_power = hw->conf.power_level * 2; + tx_power = mt76_get_sar_power(mphy, mphy->chandef.chan, + tx_power); + tx_power -= mt76_tx_power_nss_delta(n_chains); tx_power = mt76_get_rate_power_limits(mphy, mphy->chandef.chan, &limits_array, tx_power); mphy->txpower_cur = tx_power; |