mt76: mt7615: add set_antenna callback

Add a set_antenna callback to setup per phy tx/rx streams.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 14bcff9..93fb619 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -642,6 +642,32 @@ mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
        mt7615_mac_set_timing(phy);
 }
 
+static int
+mt7615_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+       struct mt7615_dev *dev = mt7615_hw_dev(hw);
+       struct mt7615_phy *phy = mt7615_hw_phy(hw);
+       int max_nss = hweight8(hw->wiphy->available_antennas_tx);
+       bool ext_phy = phy != &dev->phy;
+
+       if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
+               return -EINVAL;
+
+       if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
+               tx_ant = BIT(ffs(tx_ant) - 1) - 1;
+
+       mutex_lock(&dev->mt76.mutex);
+
+       phy->mt76->antenna_mask = tx_ant;
+       phy->chainmask = ext_phy ? tx_ant << 2 : tx_ant;
+
+       mt76_set_stream_caps(&dev->mt76, true);
+
+       mutex_unlock(&dev->mt76.mutex);
+
+       return 0;
+}
+
 const struct ieee80211_ops mt7615_ops = {
        .tx = mt7615_tx,
        .start = mt7615_start,
@@ -666,5 +692,6 @@ const struct ieee80211_ops mt7615_ops = {
        .channel_switch_beacon = mt7615_channel_switch_beacon,
        .get_survey = mt76_get_survey,
        .get_antenna = mt76_get_antenna,
+       .set_antenna = mt7615_set_antenna,
        .set_coverage_class = mt7615_set_coverage_class,
 };