From c0dbbd930d326441365eb68c9d4f2a35af831f03 Mon Sep 17 00:00:00 2001 From: Ryder Lee Date: Thu, 18 Jun 2020 12:41:48 +0800 Subject: [PATCH] mt76: mt7615: add .set_tsf callback It is useful for IBSS Mesh to adjust t_clockdrift. Signed-off-by: Ryder Lee Signed-off-by: Felix Fietkau --- mt7615/main.c | 21 +++++++++++++++++++++ mt7615/regs.h | 1 + 2 files changed, 22 insertions(+) diff --git a/mt7615/main.c b/mt7615/main.c index 23e26b35..e67527ae 100644 --- a/mt7615/main.c +++ b/mt7615/main.c @@ -739,6 +739,26 @@ mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) return tsf.t64; } +static void +mt7615_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u64 timestamp) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + union { + u64 t64; + u32 t32[2]; + } tsf = { .t64 = timestamp, }; + + mutex_lock(&dev->mt76.mutex); + + mt76_wr(dev, MT_LPON_UTTR0, tsf.t32[0]); + mt76_wr(dev, MT_LPON_UTTR1, tsf.t32[1]); + /* TSF software overwrite */ + mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_WRITE); + + mutex_unlock(&dev->mt76.mutex); +} + static void mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) { @@ -1037,6 +1057,7 @@ const struct ieee80211_ops mt7615_ops = { .channel_switch_beacon = mt7615_channel_switch_beacon, .get_stats = mt7615_get_stats, .get_tsf = mt7615_get_tsf, + .set_tsf = mt7615_set_tsf, .get_survey = mt76_get_survey, .get_antenna = mt76_get_antenna, .set_antenna = mt7615_set_antenna, diff --git a/mt7615/regs.h b/mt7615/regs.h index aee433a9..f0b36b16 100644 --- a/mt7615/regs.h +++ b/mt7615/regs.h @@ -417,6 +417,7 @@ enum mt7615_reg_base { #define MT_LPON_T0CR MT_LPON(0x010) #define MT_LPON_T0CR_MODE GENMASK(1, 0) +#define MT_LPON_T0CR_WRITE BIT(0) #define MT_LPON_UTTR0 MT_LPON(0x018) #define MT_LPON_UTTR1 MT_LPON(0x01c)