mt76: mt7915: update mt7915_chan_mib_offs for mt7916

Update v2 offset. This is an intermediate patch to add mt7916 support.
Co-developed-by: NSujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: NSujuan Chen <sujuan.chen@mediatek.com>
Co-developed-by: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NBo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>

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

@@ -3817,19 +3817,24 @@ int mt7915_mcu_apply_tx_dpd(struct mt7915_phy *phy)
 int mt7915_mcu_get_chan_mib_info(struct mt7915_phy *phy, bool chan_switch)
 {
 	/* strict order */
-	static const enum mt7915_chan_mib_offs offs[] = {
-		MIB_BUSY_TIME, MIB_TX_TIME, MIB_RX_TIME, MIB_OBSS_AIRTIME
+	static const u32 offs[] = {
+		MIB_BUSY_TIME, MIB_TX_TIME, MIB_RX_TIME, MIB_OBSS_AIRTIME,
+		MIB_BUSY_TIME_V2, MIB_TX_TIME_V2, MIB_RX_TIME_V2,
+		MIB_OBSS_AIRTIME_V2
 	};
 	struct mt76_channel_state *state = phy->mt76->chan_state;
 	struct mt76_channel_state *state_ts = &phy->state_ts;
 	struct mt7915_dev *dev = phy->dev;
 	struct mt7915_mcu_mib *res, req[4];
 	struct sk_buff *skb;
-	int i, ret;
+	int i, ret, start = 0;
+
+	if (!is_mt7915(&dev->mt76))
+		start = 4;
 
 	for (i = 0; i < 4; i++) {
 		req[i].band = cpu_to_le32(phy != &dev->phy);
-		req[i].offs = cpu_to_le32(offs[i]);
+		req[i].offs = cpu_to_le32(offs[i + start]);
 	}
 
 	ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_EXT_CMD(GET_MIB_INFO),

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

@@ -161,10 +161,16 @@ struct mt7915_mcu_mib {
 } __packed;
 
 enum mt7915_chan_mib_offs {
+	/* mt7915 */
 	MIB_BUSY_TIME = 14,
 	MIB_TX_TIME = 81,
 	MIB_RX_TIME,
-	MIB_OBSS_AIRTIME = 86
+	MIB_OBSS_AIRTIME = 86,
+	/* mt7916 */
+	MIB_BUSY_TIME_V2 = 0,
+	MIB_TX_TIME_V2 = 6,
+	MIB_RX_TIME_V2 = 8,
+	MIB_OBSS_AIRTIME_V2 = 490
 };
 
 struct edca {