[v1,1/3] mt76: mt7615: report TSF information

Commit Message

Ryder Lee Dec. 28, 2019, 3:05 a.m. UTC

This adds a get_tsf() callback for ibss.

Signed-off-by: Ryder Lee <[e-mail]>
---
changes since v1 - modify commit msg and variable name.
---
 .../net/wireless/mediatek/mt76/mt7615/main.c  | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

Patch

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index 2a85859da754..fa67331918ea 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -628,6 +628,26 @@  mt7615_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			  IEEE80211_STA_NOTEXIST);
 }
 
+static u64
+mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct mt7615_dev *dev = mt7615_hw_dev(hw);
+	union {
+		u64 t64;
+		u32 t32[2];
+	} tsf;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */
+	tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0);
+	tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	return tsf.t64;
+}
+
 static void
 mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
 {
@@ -659,6 +679,7 @@  const struct ieee80211_ops mt7615_ops = {
 	.release_buffered_frames = mt76_release_buffered_frames,
 	.get_txpower = mt76_get_txpower,
 	.channel_switch_beacon = mt7615_channel_switch_beacon,
+	.get_tsf = mt7615_get_tsf,
 	.get_survey = mt76_get_survey,
 	.get_antenna = mt76_get_antenna,
 	.set_coverage_class = mt7615_set_coverage_class,