recipes-wifi/linux-mt76/files/patches-3.x/0112-mtk-mt76-mt7996-enable-ibf-capability-for-mt7992.patch

From 349f51f541c02b1a3f72cce4e2f70110a0f39252 Mon Sep 17 00:00:00 2001
From: Howard Hsu <howard-yh.hsu@mediatek.com>
Date: Tue, 23 Apr 2024 09:19:25 +0800
Subject: [PATCH 112/223] mtk: mt76: mt7996: enable ibf capability for mt7992

For the specific sku of mt7992, it supports both ibf and ebf
functionality. The firmware algorithm may decide which type is better
according to the station's beamform capability.

Change-Id: I4b38ddf5059b5eafd5fc4cacb1add2a6d0ea3836
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
---
 mt7996/mcu.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index d56630e9..f9ed473a 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -2270,6 +2270,8 @@ mt7996_mcu_sta_bfer_tlv(struct mt7996_dev *dev, struct sk_buff *skb,
 			struct ieee80211_bss_conf *conf, struct mt7996_bss_conf *mconf,
 			struct ieee80211_link_sta *link_sta)
 {
+#define EBF_MODE	BIT(0)
+#define IBF_MODE	BIT(1)
 	struct mt7996_phy *phy = mconf->phy;
 	int tx_ant = hweight16(phy->mt76->chainmask) - 1;
 	struct sta_rec_bf *bf;
@@ -2307,7 +2309,10 @@ mt7996_mcu_sta_bfer_tlv(struct mt7996_dev *dev, struct sk_buff *skb,
 	else
 		return;
 
-	bf->bf_cap = ebf ? ebf : dev->ibf << 1;
+	bf->bf_cap = ebf ? EBF_MODE : (dev->ibf ? IBF_MODE : 0);
+	if (is_mt7992(&dev->mt76) &&
+	    tx_ant == hweight8(phy->mt76->hw->wiphy->available_antennas_tx))
+		bf->bf_cap |= IBF_MODE;
 	bf->bw = link_sta->bandwidth;
 	bf->ibf_dbw = link_sta->bandwidth;
 	bf->ibf_nrow = tx_ant;
-- 
2.45.2