wifi: mt76: connac: add helpers for EHT capability

Add helpers to get eht cap and phymode on different bands and vifs.
This is the preliminary patch to add EHT support for mt7996.
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c

@@ -1329,6 +1329,40 @@ u8 mt76_connac_get_phy_mode(struct mt76_phy *phy, struct ieee80211_vif *vif,
 }
 EXPORT_SYMBOL_GPL(mt76_connac_get_phy_mode);
 
+u8 mt76_connac_get_phy_mode_ext(struct mt76_phy *phy, struct ieee80211_vif *vif,
+				enum nl80211_band band)
+{
+	const struct ieee80211_sta_eht_cap *eht_cap;
+	struct ieee80211_supported_band *sband;
+	u8 mode = 0;
+
+	if (band == NL80211_BAND_6GHZ)
+		mode |= PHY_MODE_AX_6G;
+
+	sband = phy->hw->wiphy->bands[band];
+	eht_cap = ieee80211_get_eht_iftype_cap(sband, vif->type);
+
+	if (!eht_cap || !eht_cap->has_eht)
+		return mode;
+
+	switch (band) {
+	case NL80211_BAND_6GHZ:
+		mode |= PHY_MODE_BE_6G;
+		break;
+	case NL80211_BAND_5GHZ:
+		mode |= PHY_MODE_BE_5G;
+		break;
+	case NL80211_BAND_2GHZ:
+		mode |= PHY_MODE_BE_24G;
+		break;
+	default:
+		break;
+	}
+
+	return mode;
+}
+EXPORT_SYMBOL_GPL(mt76_connac_get_phy_mode_ext);
+
 const struct ieee80211_sta_he_cap *
 mt76_connac_get_he_phy_cap(struct mt76_phy *phy, struct ieee80211_vif *vif)
 {
@@ -1341,6 +1375,18 @@ mt76_connac_get_he_phy_cap(struct mt76_phy *phy, struct ieee80211_vif *vif)
 }
 EXPORT_SYMBOL_GPL(mt76_connac_get_he_phy_cap);
 
+const struct ieee80211_sta_eht_cap *
+mt76_connac_get_eht_phy_cap(struct mt76_phy *phy, struct ieee80211_vif *vif)
+{
+	enum nl80211_band band = phy->chandef.chan->band;
+	struct ieee80211_supported_band *sband;
+
+	sband = phy->hw->wiphy->bands[band];
+
+	return ieee80211_get_eht_iftype_cap(sband, vif->type);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_get_eht_phy_cap);
+
 #define DEFAULT_HE_PE_DURATION		4
 #define DEFAULT_HE_DURATION_RTS_THRES	1023
 static void

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h

@@ -1872,8 +1872,12 @@ void mt76_connac_mcu_reg_wr(struct mt76_dev *dev, u32 offset, u32 val);
 
 const struct ieee80211_sta_he_cap *
 mt76_connac_get_he_phy_cap(struct mt76_phy *phy, struct ieee80211_vif *vif);
+const struct ieee80211_sta_eht_cap *
+mt76_connac_get_eht_phy_cap(struct mt76_phy *phy, struct ieee80211_vif *vif);
 u8 mt76_connac_get_phy_mode(struct mt76_phy *phy, struct ieee80211_vif *vif,
 			    enum nl80211_band band, struct ieee80211_sta *sta);
+u8 mt76_connac_get_phy_mode_ext(struct mt76_phy *phy, struct ieee80211_vif *vif,
+				enum nl80211_band band);
 
 int mt76_connac_mcu_add_key(struct mt76_dev *dev, struct ieee80211_vif *vif,
 			    struct mt76_connac_sta_key_conf *sta_key_conf,