[PATCH] wifi: mt76: Limit the concurrent STA and SoftAP to operate on the same channel

[Mingyen Hsieh]

From: Leon Yen <leon.yen at mediatek.com>

Due to the lack of NoA(Notice of Absence) mechanism in SoftAP mode, it is
inappropriate to allow concurrent SoftAP and STA to operate on the
different channels.

This patch restricts the concurrent SoftAP and STA to be setup on the same
channel only.

Signed-off-by: Leon Yen <leon.yen at mediatek.com>
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh at mediatek.com>
---
 .../net/wireless/mediatek/mt76/mt792x_core.c  | 42 ++++++++++++++++---
 1 file changed, 36 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_core.c b/drivers/net/wireless/mediatek/mt76/mt792x_core.c
index 7f572f8afc02..869fd90202b8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x_core.c
+++ b/drivers/net/wireless/mediatek/mt76/mt792x_core.c
@@ -28,7 +28,7 @@ static const struct ieee80211_iface_combination if_comb[] = {
 	},
 };
 
-static const struct ieee80211_iface_limit if_limits_chanctx[] = {
+static const struct ieee80211_iface_limit if_limits_chanctx_mcc[] = {
 	{
 		.max = 2,
 		.types = BIT(NL80211_IFTYPE_STATION) |
@@ -36,8 +36,7 @@ static const struct ieee80211_iface_limit if_limits_chanctx[] = {
 	},
 	{
 		.max = 1,
-		.types = BIT(NL80211_IFTYPE_AP) |
-			 BIT(NL80211_IFTYPE_P2P_GO)
+		.types = BIT(NL80211_IFTYPE_P2P_GO)
 	},
 	{
 		.max = 1,
@@ -45,16 +44,47 @@ static const struct ieee80211_iface_limit if_limits_chanctx[] = {
 	}
 };
 
-static const struct ieee80211_iface_combination if_comb_chanctx[] = {
+static const struct ieee80211_iface_combination if_comb_chanctx_mcc[] = {
 	{
-		.limits = if_limits_chanctx,
-		.n_limits = ARRAY_SIZE(if_limits_chanctx),
+		.limits = if_limits_chanctx_mcc,
+		.n_limits = ARRAY_SIZE(if_limits_chanctx_mcc),
 		.max_interfaces = 3,
 		.num_different_channels = 2,
 		.beacon_int_infra_match = false,
 	}
 };
 
+static const struct ieee80211_iface_limit if_limits_chanctx_scc[] = {
+	{
+		.max = 2,
+		.types = BIT(NL80211_IFTYPE_STATION) |
+			 BIT(NL80211_IFTYPE_P2P_CLIENT)
+	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_AP)
+	},
+	{
+		.max = 1,
+		.types = BIT(NL80211_IFTYPE_P2P_DEVICE)
+	}
+};
+
+static const struct ieee80211_iface_combination if_comb_chanctx_scc[] = {
+	{
+		.limits = if_limits_chanctx_scc,
+		.n_limits = ARRAY_SIZE(if_limits_chanctx_scc),
+		.max_interfaces = 3,
+		.num_different_channels = 1,
+		.beacon_int_infra_match = false,
+	}
+};
+
+static const struct ieee80211_iface_combination if_comb_chanctx[] = {
+		if_comb_chanctx_mcc[0],
+		if_comb_chanctx_scc[0],
+};
+
 void mt792x_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
 	       struct sk_buff *skb)
 {
-- 
2.34.1