recipes-wifi/linux-mt76/files/patches-3.x/0037-wifi-mt76-mt7996-add-beacon-duplicate-tx-mode-suppor.patch

From de92f88f5c00cf1069df00bb89f50281b0b2d05e Mon Sep 17 00:00:00 2001
From: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Date: Fri, 12 May 2023 16:24:53 +0800
Subject: [PATCH 37/39] wifi: mt76: mt7996: add beacon duplicate tx mode
 support

Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
---
 mt76_connac_mcu.h |  1 +
 mt7996/init.c     |  6 ++++--
 mt7996/mac.c      | 11 -----------
 mt7996/main.c     | 18 +++++++++---------
 mt7996/mcu.c      | 30 ++++++++++++++++++++++++++++++
 mt7996/mcu.h      | 20 ++++++++++++++++++++
 mt7996/mt7996.h   |  8 +++++---
 7 files changed, 69 insertions(+), 25 deletions(-)

diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index bfec420..4bb9508 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1224,6 +1224,7 @@ enum {
 	MCU_UNI_CMD_CHANNEL_SWITCH = 0x34,
 	MCU_UNI_CMD_THERMAL = 0x35,
 	MCU_UNI_CMD_VOW = 0x37,
+	MCU_UNI_CMD_FIXED_RATE_TABLE = 0x40,
 	MCU_UNI_CMD_TESTMODE_CTRL = 0x46,
 	MCU_UNI_CMD_RRO = 0x57,
 	MCU_UNI_CMD_OFFCH_SCAN_CTRL = 0x58,
diff --git a/mt7996/init.c b/mt7996/init.c
index 1072874..9eba689 100644
--- a/mt7996/init.c
+++ b/mt7996/init.c
@@ -351,6 +351,7 @@ mt7996_init_wiphy(struct ieee80211_hw *hw)
 		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
 
 	phy->slottime = 9;
+	phy->beacon_rate = -1;
 
 	hw->sta_data_size = sizeof(struct mt7996_sta);
 	hw->vif_data_size = sizeof(struct mt7996_vif);
@@ -459,11 +460,12 @@ static void mt7996_mac_init_basic_rates(struct mt7996_dev *dev)
 
 	for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
 		u16 rate = mt76_rates[i].hw_value;
-		u16 idx = MT7996_BASIC_RATES_TBL + i;
+		/* odd index for driver, even index for firmware */
+		u16 idx = MT7996_BASIC_RATES_TBL + 2 * i;
 
 		rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
 		       FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
-		mt7996_mac_set_fixed_rate_table(dev, idx, rate);
+		mt7996_mcu_set_fixed_rate_table(&dev->phy, idx, rate, false);
 	}
 }
 
diff --git a/mt7996/mac.c b/mt7996/mac.c
index 724af82..05269e7 100644
--- a/mt7996/mac.c
+++ b/mt7996/mac.c
@@ -252,17 +252,6 @@ void mt7996_mac_enable_rtscts(struct mt7996_dev *dev,
 		mt76_clear(dev, addr, BIT(5));
 }
 
-void mt7996_mac_set_fixed_rate_table(struct mt7996_dev *dev,
-				     u8 tbl_idx, u16 rate_idx)
-{
-	u32 ctrl = MT_WTBL_ITCR_WR | MT_WTBL_ITCR_EXEC | tbl_idx;
-
-	mt76_wr(dev, MT_WTBL_ITDR0, rate_idx);
-	/* use wtbl spe idx */
-	mt76_wr(dev, MT_WTBL_ITDR1, MT_WTBL_SPE_IDX_SEL);
-	mt76_wr(dev, MT_WTBL_ITCR, ctrl);
-}
-
 static void
 mt7996_mac_decode_he_radiotap_ru(struct mt76_rx_status *status,
 				 struct ieee80211_radiotap_he *he,
diff --git a/mt7996/main.c b/mt7996/main.c
index 20b89a7..2ed66e6 100644
--- a/mt7996/main.c
+++ b/mt7996/main.c
@@ -544,24 +544,25 @@ mt7996_get_rates_table(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
 	struct mt76_phy *mphy = hw->priv;
 	u16 rate;
-	u8 i, idx, ht;
+	u8 i, idx;
 
 	rate = mt76_connac2_mac_tx_rate_val(mphy, vif, beacon, mcast);
-	ht = FIELD_GET(MT_TX_RATE_MODE, rate) > MT_PHY_TYPE_OFDM;
 
-	if (beacon && ht) {
-		struct mt7996_dev *dev = mt7996_hw_dev(hw);
+	if (beacon) {
+		struct mt7996_phy *phy = mt7996_hw_phy(hw);
+
+		/* odd index for driver, even index for firmware */
+		idx = MT7996_BEACON_RATES_TBL + 2 * phy->mt76->band_idx;
+		if (phy->beacon_rate != rate)
+			mt7996_mcu_set_fixed_rate_table(phy, idx, rate, beacon);
 
-		/* must odd index */
-		idx = MT7996_BEACON_RATES_TBL + 2 * (mvif->mt76.idx % 20);
-		mt7996_mac_set_fixed_rate_table(dev, idx, rate);
 		return idx;
 	}
 
 	idx = FIELD_GET(MT_TX_RATE_IDX, rate);
 	for (i = 0; i < ARRAY_SIZE(mt76_rates); i++)
 		if ((mt76_rates[i].hw_value & GENMASK(7, 0)) == idx)
-			return MT7996_BASIC_RATES_TBL + i;
+			return MT7996_BASIC_RATES_TBL + 2 * i;
 
 	return mvif->basic_rates_idx;
 }
@@ -965,7 +966,6 @@ mt7996_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
 	mt7996_set_stream_vht_txbf_caps(phy);
 	mt7996_set_stream_he_eht_caps(phy);
 
-	/* TODO: update bmc_wtbl spe_idx when antenna changes */
 	mutex_unlock(&dev->mt76.mutex);
 
 	return 0;
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index a5c473a..b34c6b7 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -4056,6 +4056,36 @@ int mt7996_mcu_wtbl_update_hdr_trans(struct mt7996_dev *dev,
 				     MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true);
 }
 
+int mt7996_mcu_set_fixed_rate_table(struct mt7996_phy *phy, u8 table_idx,
+				    u16 rate_idx, bool beacon)
+{
+#define UNI_FIXED_RATE_TABLE_SET	0
+#define SPE_IXD_SELECT_TXD		0
+#define SPE_IXD_SELECT_BMC_WTBL		1
+	struct mt7996_dev *dev = phy->dev;
+	struct fixed_rate_table_ctrl req = {
+		.tag = cpu_to_le16(UNI_FIXED_RATE_TABLE_SET),
+		.len = cpu_to_le16(sizeof(req) - 4),
+		.table_idx = table_idx,
+		.rate_idx = cpu_to_le16(rate_idx),
+		.gi = 1,
+		.he_ltf = 1,
+	};
+	u8 band_idx = phy->mt76->band_idx;
+
+	if (beacon) {
+		req.spe_idx_sel = SPE_IXD_SELECT_TXD;
+		req.spe_idx = 24 + band_idx;
+		phy->beacon_rate = rate_idx;
+	} else {
+		req.spe_idx_sel = SPE_IXD_SELECT_BMC_WTBL;
+		req.spe_idx = 0;
+	}
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_WM_UNI_CMD(FIXED_RATE_TABLE),
+				 &req, sizeof(req), false);
+}
+
 int mt7996_mcu_rf_regval(struct mt7996_dev *dev, u32 regidx, u32 *val, bool set)
 {
 	struct {
diff --git a/mt7996/mcu.h b/mt7996/mcu.h
index eb63441..e32767e 100644
--- a/mt7996/mcu.h
+++ b/mt7996/mcu.h
@@ -771,4 +771,24 @@ enum {
 #define MT7996_SEC_KEY_IDX		GENMASK(2, 1)
 #define MT7996_SEC_IV			BIT(3)
 
+struct fixed_rate_table_ctrl {
+	u8 _rsv[4];
+
+	__le16 tag;
+	__le16 len;
+
+	u8 table_idx;
+	u8 antenna_idx;
+	__le16 rate_idx;
+	u8 spe_idx_sel;
+	u8 spe_idx;
+	u8 gi;
+	u8 he_ltf;
+	bool ldpc;
+	bool txbf;
+	bool dynamic_bw;
+
+	u8 rsv[1];
+} __packed;
+
 #endif
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index f78f1fd..286fc1e 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -48,7 +48,7 @@
 #define MT7996_MAX_QUEUE		(__MT_RXQ_MAX +	__MT_MCUQ_MAX + 3)
 
 /* NOTE: used to map mt76_rates. idx may change if firmware expands table */
-#define MT7996_BASIC_RATES_TBL		11
+#define MT7996_BASIC_RATES_TBL		31
 #define MT7996_BEACON_RATES_TBL		25
 
 #define MT7996_THERMAL_THROTTLE_MAX	100
@@ -256,6 +256,8 @@ struct mt7996_phy {
 
 	u8 rdd_state;
 
+	u16 beacon_rate;
+
 	u32 rx_ampdu_ts;
 	u32 ampdu_ref;
 
@@ -539,6 +541,8 @@ int mt7996_mcu_rdd_cmd(struct mt7996_dev *dev, int cmd, u8 index,
 		       u8 rx_sel, u8 val);
 int mt7996_mcu_rdd_background_enable(struct mt7996_phy *phy,
 				     struct cfg80211_chan_def *chandef);
+int mt7996_mcu_set_fixed_rate_table(struct mt7996_phy *phy, u8 table_idx,
+				    u16 rate_idx, bool beacon);
 int mt7996_mcu_rf_regval(struct mt7996_dev *dev, u32 regidx, u32 *val, bool set);
 int mt7996_mcu_set_hdr_trans(struct mt7996_dev *dev, bool hdr_trans);
 int mt7996_mcu_set_rro(struct mt7996_dev *dev, u16 tag, u8 val);
@@ -606,8 +610,6 @@ void mt7996_mac_cca_stats_reset(struct mt7996_phy *phy);
 void mt7996_mac_enable_nf(struct mt7996_dev *dev, u8 band);
 void mt7996_mac_enable_rtscts(struct mt7996_dev *dev,
 			      struct ieee80211_vif *vif, bool enable);
-void mt7996_mac_set_fixed_rate_table(struct mt7996_dev *dev,
-				     u8 tbl_idx, u16 rate_idx);
 void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi,
 			   struct sk_buff *skb, struct mt76_wcid *wcid,
 			   struct ieee80211_key_conf *key, int pid,
-- 
2.18.0