mt76: mt7615: add .offset_tsf callback

It's much more accurate than .get_tsf + .set_tsf and switch to use
mt76_rmw to operate tsf registers.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 7153f1d..4daa054 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1062,7 +1062,7 @@ void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta,
        idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx;
        addr = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx);
 
-       mt76_set(dev, addr, MT_LPON_TCR_MODE); /* TSF read */
+       mt76_rmw(dev, addr, MT_LPON_TCR_MODE, MT_LPON_TCR_READ); /* TSF read */
        sta->rate_set_tsf = mt76_rr(dev, MT_LPON_UTTR0) & ~BIT(0);
        sta->rate_set_tsf |= rd.rateset;
 

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
index faae607..c2a122c 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c
@@ -881,7 +881,8 @@ mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
        mt7615_mutex_acquire(dev);
 
-       mt76_set(dev, reg, MT_LPON_TCR_MODE); /* TSF read */
+       /* TSF read */
+       mt76_rmw(dev, reg, MT_LPON_TCR_MODE, MT_LPON_TCR_READ);
        tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0);
        tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1);
 
@@ -911,7 +912,33 @@ mt7615_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
        mt76_wr(dev, MT_LPON_UTTR0, tsf.t32[0]);
        mt76_wr(dev, MT_LPON_UTTR1, tsf.t32[1]);
        /* TSF software overwrite */
-       mt76_set(dev, reg, MT_LPON_TCR_WRITE);
+       mt76_rmw(dev, reg, MT_LPON_TCR_MODE, MT_LPON_TCR_WRITE);
+
+       mt7615_mutex_release(dev);
+}
+
+static void
+mt7615_offset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+                 s64 timestamp)
+{
+       struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv;
+       struct mt7615_dev *dev = mt7615_hw_dev(hw);
+       union {
+               u64 t64;
+               u32 t32[2];
+       } tsf = { .t64 = timestamp, };
+       u16 idx = mvif->mt76.omac_idx;
+       u32 reg;
+
+       idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx;
+       reg = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx);
+
+       mt7615_mutex_acquire(dev);
+
+       mt76_wr(dev, MT_LPON_UTTR0, tsf.t32[0]);
+       mt76_wr(dev, MT_LPON_UTTR1, tsf.t32[1]);
+       /* TSF software adjust*/
+       mt76_rmw(dev, reg, MT_LPON_TCR_MODE, MT_LPON_TCR_ADJUST);
 
        mt7615_mutex_release(dev);
 }
@@ -1278,6 +1305,7 @@ const struct ieee80211_ops mt7615_ops = {
        .get_stats = mt7615_get_stats,
        .get_tsf = mt7615_get_tsf,
        .set_tsf = mt7615_set_tsf,
+       .offset_tsf = mt7615_offset_tsf,
        .get_survey = mt76_get_survey,
        .get_antenna = mt76_get_antenna,
        .set_antenna = mt7615_set_antenna,

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
index 63c081b..6712ad9 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
@@ -463,7 +463,9 @@ enum mt7615_reg_base {
 #define MT_LPON_TCR0(_n)               MT_LPON(0x010 + ((_n) * 4))
 #define MT_LPON_TCR2(_n)               MT_LPON(0x0f8 + ((_n) - 2) * 4)
 #define MT_LPON_TCR_MODE               GENMASK(1, 0)
+#define MT_LPON_TCR_READ               GENMASK(1, 0)
 #define MT_LPON_TCR_WRITE              BIT(0)
+#define MT_LPON_TCR_ADJUST             BIT(1)
 
 #define MT_LPON_UTTR0                  MT_LPON(0x018)
 #define MT_LPON_UTTR1                  MT_LPON(0x01c)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
index 75a05f8..996d48c 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c
@@ -123,7 +123,7 @@ static int mt7663_usb_sdio_set_rates(struct mt7615_dev *dev,
        idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx;
        addr = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx);
 
-       mt76_set(dev, addr, MT_LPON_TCR_MODE); /* TSF read */
+       mt76_rmw(dev, addr, MT_LPON_TCR_MODE, MT_LPON_TCR_READ); /* TSF read */
        val = mt76_rr(dev, MT_LPON_UTTR0);
        sta->rate_set_tsf = (val & ~BIT(0)) | rate->rateset;