Skip to contentSkip to conversation

mt76: mt7603: add debugfs knob to enable/disable edcca

PATCH Applied Lorenzo Bianconi 2 participants 2 messages May 13, 2019 – Jun 7, 2019 1 message not in the archive

Subsystems (2)
Arm MediaTek MediaTek MT76 wireless LAN driver
lore
Share & tools
lore

A message that is not in the archive (sent off-list or not yet received): [email protected]

Lorenzo Bianconi

author maintainer
#1 lore raw

PATCH v2 1/1 mt76: mt7603: add debugfs knob to enable/disable edcca

Introduce a knob in mt7603 debugfs in order to enable/disable energy detection based on CCA thresholds

Signed-off-by Lorenzo Bianconi <[email protected]>

---
Changes since v1:
- fix file permission

---
 .../wireless/mediatek/mt76/mt7603/debugfs.c   | 30 +++++++++++++++++++
 .../net/wireless/mediatek/mt76/mt7603/init.c  |  4 ++-
 .../net/wireless/mediatek/mt76/mt7603/main.c  |  3 +-
 .../wireless/mediatek/mt76/mt7603/mt7603.h    |  6 +++-
 4 files changed, 39 insertions(+), 4 deletions(-)
drivers/net/wireless/mediatek/mt76/mt7603/debugfs.c +30 -0
index f8b3b6ab6297..9c0bea489e1f 100644
@@ -40,6 +40,35 @@ mt7603_radio_read(struct seq_file *s, void *data)
 	return 0;
 }
 
+static int
+mt7603_edcca_set(void *data, u64 val)
+{
+	struct mt7603_dev *dev = data;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	dev->ed_monitor_enabled = !!val;
+	dev->ed_monitor = dev->ed_monitor_enabled &&
+			  dev->region == NL80211_DFS_ETSI;
+	mt7603_init_edcca(dev);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	return 0;
+}
+
+static int
+mt7603_edcca_get(void *data, u64 *val)
+{
+	struct mt7603_dev *dev = data;
+
+	*val = dev->ed_monitor_enabled;
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_edcca, mt7603_edcca_get,
+			 mt7603_edcca_set, "%lld\n");
+
 void mt7603_init_debugfs(struct mt7603_dev *dev)
 {
 	struct dentry *dir;

@@ -48,6 +77,7 @@ void mt7603_init_debugfs(struct mt7603_dev *dev)
 	if (!dir)
 		return;
 
+	debugfs_create_file("edcca", 0600, dir, dev, &fops_edcca);
 	debugfs_create_u32("reset_test", 0600, dir, &dev->reset_test);
 	debugfs_create_devm_seqfile(dev->mt76.dev, "reset", dir,
 				    mt7603_reset_read);
drivers/net/wireless/mediatek/mt76/mt7603/init.c +3 -1
index 78cdbb70e178..4e269044f8a4 100644
@@ -437,7 +437,9 @@ mt7603_regd_notifier(struct wiphy *wiphy,
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct mt7603_dev *dev = hw->priv;
 
-	dev->ed_monitor = request->dfs_region == NL80211_DFS_ETSI;
+	dev->region = request->dfs_region;
+	dev->ed_monitor = dev->ed_monitor_enabled &&
+			  dev->region == NL80211_DFS_ETSI;
 }
 
 static int
drivers/net/wireless/mediatek/mt76/mt7603/main.c +1 -2
index 0a0334dc40d5..e931af92af43 100644
@@ -103,8 +103,7 @@ mt7603_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	mutex_unlock(&dev->mt76.mutex);
 }
 
-static void
-mt7603_init_edcca(struct mt7603_dev *dev)
+void mt7603_init_edcca(struct mt7603_dev *dev)
 {
 	/* Set lower signal level to -65dBm */
 	mt76_rmw_field(dev, MT_RXTD(8), MT_RXTD_8_LOWER_SIGNAL, 0x23);
drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h +5 -1
index fa64bbaab0d2..944dc9a11a15 100644
@@ -117,8 +117,11 @@ struct mt7603_dev {
 	u8 mac_work_count;
 
 	u8 mcu_running;
-	u8 ed_monitor;
 
+	enum nl80211_dfs_regions region;
+
+	u8 ed_monitor_enabled;
+	u8 ed_monitor;
 	s8 ed_trigger;
 	u8 ed_strict_mode;
 	u8 ed_strong_signal;

@@ -241,4 +244,5 @@ void mt7603_update_channel(struct mt76_dev *mdev);
 void mt7603_edcca_set_strict(struct mt7603_dev *dev, bool val);
 void mt7603_cca_stats_reset(struct mt7603_dev *dev);
 
+void mt7603_init_edcca(struct mt7603_dev *dev);
 #endif
Signature · 1 line
2.20.1