wifi: mt76: mt7915: enable use_cts_prot support

This adds selectable RTC/CTS enablement for each interface.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/mac.c

@@ -231,6 +231,19 @@ static void mt7915_mac_sta_poll(struct mt7915_dev *dev)
 	rcu_read_unlock();
 }
 
+void mt7915_mac_enable_rtscts(struct mt7915_dev *dev,
+			      struct ieee80211_vif *vif, bool enable)
+{
+	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
+	u32 addr;
+
+	addr = mt7915_mac_wtbl_lmac_addr(dev, mvif->sta.wcid.idx, 5);
+	if (enable)
+		mt76_set(dev, addr, BIT(5));
+	else
+		mt76_clear(dev, addr, BIT(5));
+}
+
 static int
 mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb)
 {

drivers/net/wireless/mediatek/mt76/mt7915/main.c

@@ -598,6 +598,9 @@ static void mt7915_bss_info_changed(struct ieee80211_hw *hw,
 		mt7915_mcu_add_obss_spr(dev, vif, info->he_obss_pd.enable);
 	}
 
+	if (changed & BSS_CHANGED_ERP_CTS_PROT)
+		mt7915_mac_enable_rtscts(dev, vif, info->use_cts_prot);
+
 	if (changed & BSS_CHANGED_ERP_SLOT) {
 		int slottime = info->use_short_slot ? 9 : 20;
 

drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h

@@ -552,6 +552,8 @@ bool mt7915_mac_wtbl_update(struct mt7915_dev *dev, int idx, u32 mask);
 void mt7915_mac_reset_counters(struct mt7915_phy *phy);
 void mt7915_mac_cca_stats_reset(struct mt7915_phy *phy);
 void mt7915_mac_enable_nf(struct mt7915_dev *dev, bool ext_phy);
+void mt7915_mac_enable_rtscts(struct mt7915_dev *dev,
+			      struct ieee80211_vif *vif, bool enable);
 void mt7915_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi,
 			   struct sk_buff *skb, struct mt76_wcid *wcid, int pid,
 			   struct ieee80211_key_conf *key,