mt76: mt7615: add starec operating flow for firmware v2

Add fw_ver in mt7615_dev to check firmware version, and adjust
mt7615_mcu_send_sta_rec() to adapt firmware v2 changes.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -551,6 +551,11 @@ static int mt7615_load_n9(struct mt7615_dev *dev, const char *name)
 		 sizeof(dev->mt76.hw->wiphy->fw_version),
 		 "%.10s-%.15s", hdr->fw_ver, hdr->build_date);
 
+	if (!strncmp(hdr->fw_ver, "2.0", sizeof(hdr->fw_ver)))
+		dev->fw_ver = MT7615_FIRMWARE_V2;
+	else
+		dev->fw_ver = MT7615_FIRMWARE_V1;
+
 out:
 	release_firmware(fw);
 	return ret;
@@ -1121,10 +1126,11 @@ static int
 mt7615_mcu_send_sta_rec(struct mt7615_dev *dev, u8 *req, u8 *wreq,
 			u8 wlen, bool enable)
 {
-	u32 slen = wreq - req;
+	bool is_v1 = (dev->fw_ver == MT7615_FIRMWARE_V1);
+	u32 slen = is_v1 ? wreq - req : wreq - req + wlen;
 	int ret;
 
-	if (!enable) {
+	if (is_v1 && !enable) {
 		ret = __mt76_mcu_send_msg(&dev->mt76,
 					  MCU_EXT_CMD_STA_REC_UPDATE,
 					  req, slen, true);
@@ -1135,10 +1141,12 @@ mt7615_mcu_send_sta_rec(struct mt7615_dev *dev, u8 *req, u8 *wreq,
 					   wreq, wlen, true);
 	}
 
-	ret = __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_WTBL_UPDATE, wreq,
-				  wlen, true);
-	if (ret)
-		return ret;
+	if (is_v1) {
+		ret = __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_WTBL_UPDATE,
+					  wreq, wlen, true);
+		if (ret)
+			return ret;
+	}
 
 	return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_STA_REC_UPDATE,
 				   req, slen, true);

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

@@ -36,6 +36,9 @@
 #define MT7622_FIRMWARE_N9		"mediatek/mt7622_n9.bin"
 #define MT7622_ROM_PATCH		"mediatek/mt7622_rom_patch.bin"
 
+#define MT7615_FIRMWARE_V1		1
+#define MT7615_FIRMWARE_V2		2
+
 #define MT7615_EEPROM_SIZE		1024
 #define MT7615_TOKEN_SIZE		4096
 
@@ -178,6 +181,8 @@ struct mt7615_dev {
 
 	spinlock_t token_lock;
 	struct idr token;
+
+	u8 fw_ver;
 };
 
 enum {