Commit 32add88f authored by Ryder Lee's avatar Ryder Lee Committed by Felix Fietkau
Browse files

mt76: mt7915: add tsf related callbacks



It is useful for IBSS Mesh to adjust t_clockdrift.

Signed-off-by: default avatarRyder Lee <ryder.lee@mediatek.com>
Reported-by: default avatarShayne Chen <shayne.chen@mediatek.com>
Tested-by: default avatarEvelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 9fac3c81
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+53 −0
Original line number Diff line number Diff line
@@ -655,6 +655,57 @@ mt7915_get_stats(struct ieee80211_hw *hw,
	return 0;
}

static u64
mt7915_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
	struct mt7915_dev *dev = mt7915_hw_dev(hw);
	struct mt7915_phy *phy = mt7915_hw_phy(hw);
	bool band = phy != &dev->phy;
	union {
		u64 t64;
		u32 t32[2];
	} tsf;
	u16 n;

	mutex_lock(&dev->mt76.mutex);

	n = mvif->omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->omac_idx;
	/* TSF software read */
	mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE);
	tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(band));
	tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(band));

	mutex_unlock(&dev->mt76.mutex);

	return tsf.t64;
}

static void
mt7915_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
	       u64 timestamp)
{
	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
	struct mt7915_dev *dev = mt7915_hw_dev(hw);
	struct mt7915_phy *phy = mt7915_hw_phy(hw);
	bool band = phy != &dev->phy;
	union {
		u64 t64;
		u32 t32[2];
	} tsf = { .t64 = timestamp, };
	u16 n;

	mutex_lock(&dev->mt76.mutex);

	n = mvif->omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : mvif->omac_idx;
	mt76_wr(dev, MT_LPON_UTTR0(band), tsf.t32[0]);
	mt76_wr(dev, MT_LPON_UTTR1(band), tsf.t32[1]);
	/* TSF software overwrite */
	mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_WRITE);

	mutex_unlock(&dev->mt76.mutex);
}

static void
mt7915_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
{
@@ -767,6 +818,8 @@ const struct ieee80211_ops mt7915_ops = {
	.get_txpower = mt76_get_txpower,
	.channel_switch_beacon = mt7915_channel_switch_beacon,
	.get_stats = mt7915_get_stats,
	.get_tsf = mt7915_get_tsf,
	.set_tsf = mt7915_set_tsf,
	.get_survey = mt76_get_survey,
	.get_antenna = mt76_get_antenna,
	.set_antenna = mt7915_set_antenna,
+11 −0
Original line number Diff line number Diff line
@@ -75,6 +75,17 @@
#define MT_DMA_DCR0_MAX_RX_LEN		GENMASK(15, 3)
#define MT_DMA_DCR0_RXD_G5_EN		BIT(23)

/* LPON: band 0(0x24200), band 1(0xa4200) */
#define MT_WF_LPON_BASE(_band)		((_band) ? 0xa4200 : 0x24200)
#define MT_WF_LPON(_band, ofs)		(MT_WF_LPON_BASE(_band) + (ofs))

#define MT_LPON_UTTR0(_band)		MT_WF_LPON(_band, 0x080)
#define MT_LPON_UTTR1(_band)		MT_WF_LPON(_band, 0x084)

#define MT_LPON_TCR(_band, n)		MT_WF_LPON(_band, 0x0a8 + (n) * 4)
#define MT_LPON_TCR_SW_MODE		GENMASK(1, 0)
#define MT_LPON_TCR_SW_WRITE		BIT(0)

/* MIB: band 0(0x24800), band 1(0xa4800) */
#define MT_WF_MIB_BASE(_band)		((_band) ? 0xa4800 : 0x24800)
#define MT_WF_MIB(_band, ofs)		(MT_WF_MIB_BASE(_band) + (ofs))