mt76: mt7615: fix CSA notification for DBDC

Add CSA notification for second phy.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/mcu.c

@@ -372,6 +372,23 @@ mt7615_mcu_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif)
 		ieee80211_csa_finish(vif);
 }
 
+static void
+mt7615_mcu_rx_csa_notify(struct mt7615_dev *dev, struct sk_buff *skb)
+{
+	struct mt7615_phy *ext_phy = mt7615_ext_phy(dev);
+	struct mt76_phy *mphy = &dev->mt76.phy;
+	struct mt7615_mcu_csa_notify *c;
+
+	c = (struct mt7615_mcu_csa_notify *)skb->data;
+
+	if (ext_phy && ext_phy->omac_mask & BIT_ULL(c->omac_idx))
+		mphy = dev->mt76.phy2;
+
+	ieee80211_iterate_active_interfaces_atomic(mphy->hw,
+			IEEE80211_IFACE_ITER_RESUME_ALL,
+			mt7615_mcu_csa_finish, mphy->hw);
+}
+
 static void
 mt7615_mcu_rx_radar_detected(struct mt7615_dev *dev, struct sk_buff *skb)
 {
@@ -380,7 +397,7 @@ mt7615_mcu_rx_radar_detected(struct mt7615_dev *dev, struct sk_buff *skb)
 
 	r = (struct mt7615_mcu_rdd_report *)skb->data;
 
-	if (r->idx && dev->mt76.phy2)
+	if (r->band_idx && dev->mt76.phy2)
 		mphy = dev->mt76.phy2;
 
 	ieee80211_radar_detected(mphy->hw);
@@ -419,9 +436,7 @@ mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb)
 		mt7615_mcu_rx_radar_detected(dev, skb);
 		break;
 	case MCU_EXT_EVENT_CSA_NOTIFY:
-		ieee80211_iterate_active_interfaces_atomic(dev->mt76.hw,
-				IEEE80211_IFACE_ITER_RESUME_ALL,
-				mt7615_mcu_csa_finish, dev);
+		mt7615_mcu_rx_csa_notify(dev, skb);
 		break;
 	case MCU_EXT_EVENT_FW_LOG_2_HOST:
 		mt7615_mcu_rx_log_message(dev, skb);
@@ -2176,7 +2191,7 @@ int mt7615_mcu_set_chan_info(struct mt7615_phy *phy, int cmd)
 		.center_chan2 = ieee80211_frequency_to_channel(freq2),
 	};
 
-	if (dev->mt76.hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
+	if (phy->mt76->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
 		req.switch_reason = CH_SWITCH_SCAN_BYPASS_DPD;
 	else if ((chandef->chan->flags & IEEE80211_CHAN_RADAR) &&
 		 chandef->chan->dfs_state != NL80211_DFS_AVAILABLE)

drivers/net/wireless/mediatek/mt76/mt7615/mcu.h

@@ -176,10 +176,18 @@ struct mt7615_mcu_rxd {
 	u8 s2d_index;
 };
 
+struct mt7615_mcu_csa_notify {
+	struct mt7615_mcu_rxd rxd;
+
+	u8 omac_idx;
+	u8 csa_count;
+	u8 rsv[2];
+} __packed;
+
 struct mt7615_mcu_rdd_report {
 	struct mt7615_mcu_rxd rxd;
 
-	u8 idx;
+	u8 band_idx;
 	u8 long_detected;
 	u8 constant_prf_detected;
 	u8 staggered_prf_detected;