recipes-kernel/linux-mt76/files/patches/0008-mt76-mt7915-set-the-first-antenna-to-detect-radar-fo.patch

From ebe0cc8b9878e72143f0e24fea00ba2b474cdd6b Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Tue, 26 Jul 2022 16:04:53 +0800
Subject: [PATCH 8/8] mt76: mt7915: set the first antenna to detect radar for
 MT7915

The default value of listening antenna set by FW might be different in
MT7915. As most of our cooperated labs use the first antenna to verify
the radar detection function, manually set the value by a mcu command.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
 mt7915/mac.c    | 15 +++++++++++++++
 mt7915/mt7915.h |  1 +
 2 files changed, 16 insertions(+)

diff --git a/mt7915/mac.c b/mt7915/mac.c
index 31d1138..a1d5c15 100644
--- a/mt7915/mac.c
+++ b/mt7915/mac.c
@@ -1817,6 +1817,13 @@ static int mt7915_dfs_start_rdd(struct mt7915_dev *dev, int chain)
 	if (err < 0)
 		return err;
 
+	if (is_mt7915(&dev->mt76)) {
+		err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT, chain,
+					      0, dev->dbdc_support ? 2 : 0);
+		if (err < 0)
+			return err;
+	}
+
 	return mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_DET_MODE, chain,
 				       MT_RX_SEL0, 1);
 }
@@ -1937,6 +1944,14 @@ stop:
 	if (err < 0)
 		return err;
 
+	if (is_mt7915(&dev->mt76)) {
+		err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT,
+					      phy->band_idx, 0,
+					      dev->dbdc_support ? 2 : 0);
+		if (err < 0)
+			return err;
+	}
+
 	mt7915_dfs_stop_radar_detector(phy);
 	phy->mt76->dfs_state = MT_DFS_STATE_DISABLED;
 
diff --git a/mt7915/mt7915.h b/mt7915/mt7915.h
index 54ef2a1..836a7f1 100644
--- a/mt7915/mt7915.h
+++ b/mt7915/mt7915.h
@@ -359,6 +359,7 @@ enum mt7915_rdd_cmd {
 	RDD_DET_MODE,
 	RDD_RADAR_EMULATE,
 	RDD_START_TXQ = 20,
+	RDD_SET_WF_ANT = 30,
 	RDD_CAC_START = 50,
 	RDD_CAC_END,
 	RDD_NORMAL_START,
-- 
2.18.0