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From:   Felix Fietkau <nbd@nbd.name>
To:     linux-wireless@vger.kernel.org
Subject: [PATCH 3/3] mt76: mt7603: make dynamic sensitivity adjustment configurable via debugfs
Date:   Tue, 25 Feb 2020 13:28:47 +0100
Message-Id: <20200225122847.40846-3-nbd@nbd.name>
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In some cases it may be useful for debugging to disable this feature

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c | 2 ++
 drivers/net/wireless/mediatek/mt76/mt7603/init.c    | 1 +
 drivers/net/wireless/mediatek/mt76/mt7603/mac.c     | 3 +++
 drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h  | 1 +
 4 files changed, 7 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c
index a84e801d4cf0..cc7c788abedd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c
@@ -123,4 +123,6 @@ void mt7603_init_debugfs(struct mt7603_dev *dev)
 				    mt7603_radio_read);
 	debugfs_create_u8("sensitivity_limit", 0600, dir,
 			    &dev->sensitivity_limit);
+	debugfs_create_bool("dynamic_sensitivity", 0600, dir,
+			    &dev->dynamic_sensitivity);
 }
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/init.c b/drivers/net/wireless/mediatek/mt76/mt7603/init.c
index 97ba5ddc44bb..f641a8b56b39 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/init.c
@@ -541,6 +541,7 @@ int mt7603_register_device(struct mt7603_dev *dev)
 
 	dev->slottime = 9;
 	dev->sensitivity_limit = 28;
+	dev->dynamic_sensitivity = true;
 
 	ret = mt7603_init_hardware(dev);
 	if (ret)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
index a3daae41f2f4..39b7c5d6e6cd 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
@@ -1727,6 +1727,9 @@ mt7603_false_cca_check(struct mt7603_dev *dev)
 	int min_signal;
 	u32 val;
 
+	if (!dev->dynamic_sensitivity)
+		return;
+
 	val = mt76_rr(dev, MT_PHYCTRL_STAT_PD);
 	pd_cck = FIELD_GET(MT_PHYCTRL_STAT_PD_CCK, val);
 	pd_ofdm = FIELD_GET(MT_PHYCTRL_STAT_PD_OFDM, val);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h b/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h
index 831a269472b3..7fadf094e9be 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h
@@ -142,6 +142,7 @@ struct mt7603_dev {
 	u8 ed_strict_mode;
 	u8 ed_strong_signal;
 
+	bool dynamic_sensitivity;
 	s8 sensitivity;
 	u8 sensitivity_limit;
 
-- 
2.24.0