introduce mt7921e support

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index b55323be3823..8a29fd9ad9cd 100644
@@ -1201,6 +1201,9 @@ mt7921_dma_reset(struct mt7921_phy *phy)
 		mt76_queue_rx_reset(dev, i);
 	}
 
+	/* re-init prefetch settings after reset */
+	mt7921_dma_prefetch(dev);
+
 	mt76_set(dev, MT_WFDMA0_GLO_CFG,
 		 MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
 }

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new file mode 100644
index 000000000000..54f30401343c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: ISC */
+/* Copyright (C) 2020 MediaTek Inc. */
+
+#ifndef __MT7921_EEPROM_H
+#define __MT7921_EEPROM_H
+
+#include "mt7921.h"
+
+enum mt7921_eeprom_field {
+	MT_EE_CHIP_ID =		0x000,
+	MT_EE_VERSION =		0x002,
+	MT_EE_MAC_ADDR =	0x004,
+	MT_EE_WIFI_CONF =	0x07c,
+	__MT_EE_MAX =		0x3bf
+};
+
+#define MT_EE_WIFI_CONF_TX_MASK			BIT(0)
+#define MT_EE_WIFI_CONF_BAND_SEL		GENMASK(3, 2)
+
+enum mt7921_eeprom_band {
+	MT_EE_NA,
+	MT_EE_5GHZ,
+	MT_EE_2GHZ,
+	MT_EE_DUAL_BAND,
+};
+
+#endif

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index e5ba2591a61d..446f76bbfd21 100644
@@ -231,7 +231,7 @@ int mt7921_register_device(struct mt7921_dev *dev)
 
 	ieee80211_queue_work(mt76_hw(dev), &dev->init_work);
 
-	return 0;
+	return mt7921_init_debugfs(dev);
 }
 
 void mt7921_unregister_device(struct mt7921_dev *dev)

index 446f76bbfd21..7ec89bf96c80 100644
@@ -70,6 +70,11 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
 	wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
 	wiphy->max_scan_ie_len = MT7921_SCAN_IE_LEN;
 	wiphy->max_scan_ssids = 4;
+	wiphy->max_sched_scan_plan_interval = MT7921_MAX_SCHED_SCAN_INTERVAL;
+	wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+	wiphy->max_sched_scan_ssids = MT7921_MAX_SCHED_SCAN_SSID;
+	wiphy->max_match_sets = MT7921_MAX_SCAN_MATCH;
+	wiphy->max_sched_scan_reqs = 1;
 	wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
 
 	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);

index b962328008f2..3d906f7ccee9 100644
@@ -864,6 +864,42 @@ mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	mutex_unlock(&dev->mt76.mutex);
 }
 
+static int
+mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			struct cfg80211_sched_scan_request *req,
+			struct ieee80211_scan_ies *ies)
+{
+	struct mt7921_dev *dev = mt7921_hw_dev(hw);
+	struct mt76_phy *mphy = hw->priv;
+	int err;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	err = mt7921_mcu_sched_scan_req(mphy->priv, vif, req);
+	if (err < 0)
+		goto out;
+
+	err = mt7921_mcu_sched_scan_enable(mphy->priv, vif, true);
+out:
+	mutex_unlock(&dev->mt76.mutex);
+
+	return err;
+}
+
+static int
+mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+	struct mt7921_dev *dev = mt7921_hw_dev(hw);
+	struct mt76_phy *mphy = hw->priv;
+	int err;
+
+	mutex_lock(&dev->mt76.mutex);
+	err = mt7921_mcu_sched_scan_enable(mphy->priv, vif, false);
+	mutex_unlock(&dev->mt76.mutex);
+
+	return err;
+}
+
 static int
 mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
 {

@@ -927,4 +963,6 @@ const struct ieee80211_ops mt7921_ops = {
 	.set_coverage_class = mt7921_set_coverage_class,
 	.hw_scan = mt7921_hw_scan,
 	.cancel_hw_scan = mt7921_cancel_hw_scan,
+	.sched_scan_start = mt7921_start_sched_scan,
+	.sched_scan_stop = mt7921_stop_sched_scan,
 };

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index 96eecea22d94..6894b44ff62d 100644
@@ -879,6 +879,26 @@ struct mt7921_hw_scan_done {
 	__le32 beacon_5g_num;
 } __packed;
 
+struct mt7921_sched_scan_req {
+	u8 version;
+	u8 seq_num;
+	u8 stop_on_match;
+	u8 ssids_num;
+	u8 match_num;
+	u8 pad;
+	__le16 ie_len;
+	struct mt7921_mcu_scan_ssid ssids[MT7921_MAX_SCHED_SCAN_SSID];
+	struct mt7921_mcu_scan_match match[MT7921_MAX_SCAN_MATCH];
+	u8 channel_type;
+	u8 channels_num;
+	u8 intervals_num;
+	u8 scan_func;
+	struct mt7921_mcu_scan_channel channels[64];
+	__le16 intervals[MT7921_MAX_SCHED_SCAN_INTERVAL];
+	u8 bss_idx;
+	u8 pad2[64];
+} __packed;
+
 struct mt7921_mcu_bss_event {
 	u8 bss_idx;
 	u8 is_absent;

index a2eff533e536..114c63cf78f9 100644
@@ -44,6 +44,9 @@
 #define MT7921_SKU_TABLE_SIZE		(MT7921_SKU_RATE_NUM + 1)
 
 #define MT7921_SCAN_IE_LEN		600
+#define MT7921_MAX_SCHED_SCAN_INTERVAL	10
+#define MT7921_MAX_SCHED_SCAN_SSID	10
+#define MT7921_MAX_SCAN_MATCH		16
 
 struct mt7921_vif;
 struct mt7921_sta;

@@ -347,6 +350,12 @@ void mt7921_scan_work(struct work_struct *work);
 int mt7921_mcu_set_channel_domain(struct mt7921_phy *phy);
 int mt7921_mcu_hw_scan(struct mt7921_phy *phy, struct ieee80211_vif *vif,
 		       struct ieee80211_scan_request *scan_req);
+int mt7921_mcu_sched_scan_req(struct mt7921_phy *phy,
+			      struct ieee80211_vif *vif,
+			      struct cfg80211_sched_scan_request *sreq);
+int mt7921_mcu_sched_scan_enable(struct mt7921_phy *phy,
+				 struct ieee80211_vif *vif,
+				 bool enable);
 int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy,
 			      struct ieee80211_vif *vif);
 u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);

index 7ec89bf96c80..f8736ac3c58c 100644
@@ -83,6 +83,8 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
 	ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 	ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
 	ieee80211_hw_set(hw, WANT_MONITOR_VIF);
+	ieee80211_hw_set(hw, SUPPORTS_PS);
+	ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
 
 	hw->max_tx_fragments = 4;
 }

index 8a29fd9ad9cd..0d1e8388d69d 100644
@@ -690,8 +690,7 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
 	txwi[1] = cpu_to_le32(val);
 	txwi[2] = 0;
 
-	val = MT_TXD3_SW_POWER_MGMT |
-	      FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count);
+	val = FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count);
 	if (key)
 		val |= MT_TXD3_PROTECT_FRAME;
 	if (info->flags & IEEE80211_TX_CTL_NO_ACK)

index 3d906f7ccee9..ca51d5e41a1b 100644
@@ -559,6 +559,9 @@ static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
 	if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
 		mt7921_mcu_set_tx(dev, vif);
 
+	if (changed & BSS_CHANGED_PS)
+		mt7921_mcu_set_vif_ps(dev, vif);
+
 	mutex_unlock(&dev->mt76.mutex);
 }
 

index 3cd2d29f1e29..edad763cf194 100644
@@ -2519,3 +2519,24 @@ u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx)
 
 	return 0;
 }
+
+int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif)
+{
+	struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+	struct {
+		u8 bss_idx;
+		u8 ps_state; /* 0: device awake
+			      * 1: static power save
+			      * 2: dynamic power saving
+			      */
+	} req = {
+		.bss_idx = mvif->idx,
+		.ps_state = vif->bss_conf.ps ? 2 : 0,
+	};
+
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return -EOPNOTSUPP;
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_PS_PROFILE, &req,
+				 sizeof(req), false);
+}

index 114c63cf78f9..b8bd99894f11 100644
@@ -359,4 +359,5 @@ int mt7921_mcu_sched_scan_enable(struct mt7921_phy *phy,
 int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy,
 			      struct ieee80211_vif *vif);
 u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
+int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
 #endif

index edad763cf194..11550be87402 100644
@@ -2540,3 +2540,43 @@ int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif)
 	return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_PS_PROFILE, &req,
 				 sizeof(req), false);
 }
+
+int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
+			  bool enable)
+{
+	struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+	struct {
+		u8 bss_idx;
+		u8 dtim_period;
+		__le16 aid;
+		__le16 bcn_interval;
+		__le16 atim_window;
+		u8 uapsd;
+		u8 bmc_delivered_ac;
+		u8 bmc_triggered_ac;
+		u8 pad;
+	} req = {
+		.bss_idx = mvif->idx,
+		.aid = cpu_to_le16(vif->bss_conf.aid),
+		.dtim_period = vif->bss_conf.dtim_period,
+		.bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int),
+	};
+	struct {
+		u8 bss_idx;
+		u8 pad[3];
+	} req_hdr = {
+		.bss_idx = mvif->idx,
+	};
+	int err;
+
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return 0;
+
+	err = mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_ABORT, &req_hdr,
+				sizeof(req_hdr), false);
+	if (err < 0 || !enable)
+		return err;
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SET_BSS_CONNECTED, &req,
+				 sizeof(req), false);
+}

index b8bd99894f11..879bf8172fb7 100644
@@ -360,4 +360,6 @@ int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy,
 			      struct ieee80211_vif *vif);
 u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
 int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
+int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
+			  bool enable);
 #endif

index 11550be87402..003424a82ca2 100644
@@ -543,6 +543,40 @@ mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb)
 				     MT7921_HW_SCAN_TIMEOUT);
 }
 
+static void
+mt7921_mcu_beacon_loss_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+	struct mt7921_beacon_loss_event *event = priv;
+
+	if (mvif->idx != event->bss_idx)
+		return;
+
+	if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
+		return;
+
+	ieee80211_beacon_loss(vif);
+}
+
+static void
+mt7921_mcu_beacon_loss_event(struct mt7921_dev *dev, struct sk_buff *skb)
+{
+	struct mt7921_beacon_loss_event *event;
+	struct mt76_phy *mphy;
+	u8 band_idx = 0; /* DBDC support */
+
+	skb_pull(skb, sizeof(struct mt7921_mcu_rxd));
+	event = (struct mt7921_beacon_loss_event *)skb->data;
+	if (band_idx && dev->mt76.phy2)
+		mphy = dev->mt76.phy2;
+	else
+		mphy = &dev->mt76.phy;
+
+	ieee80211_iterate_active_interfaces_atomic(mphy->hw,
+					IEEE80211_IFACE_ITER_RESUME_ALL,
+					mt7921_mcu_beacon_loss_iter, event);
+}
+
 static void
 mt7921_mcu_bss_event(struct mt7921_dev *dev, struct sk_buff *skb)
 {

@@ -593,6 +627,7 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
 
 	switch (rxd->eid) {
 	case MCU_EVENT_BSS_BEACON_LOSS:
+		mt7921_mcu_beacon_loss_event(dev, skb);
 		break;
 	case MCU_EVENT_SCHED_SCAN_DONE:
 	case MCU_EVENT_SCAN_DONE:

index 6894b44ff62d..d6cb062619db 100644
@@ -783,6 +783,12 @@ struct mt7921_bss_qos_tlv {
 	u8 pad[3];
 } __packed;
 
+struct mt7921_beacon_loss_event {
+	u8 bss_idx;
+	u8 reason;
+	u8 pad[2];
+} __packed;
+
 struct mt7921_mcu_scan_ssid {
 	__le32 ssid_len;
 	u8 ssid[IEEE80211_MAX_SSID_LEN];

index ca51d5e41a1b..ec0f581ef1e8 100644
@@ -937,6 +937,79 @@ mt7921_sta_rc_update(struct ieee80211_hw *hw,
 {
 }
 
+#ifdef CONFIG_PM
+static int mt7921_suspend(struct ieee80211_hw *hw,
+			  struct cfg80211_wowlan *wowlan)
+{
+	struct mt7921_dev *dev = mt7921_hw_dev(hw);
+	struct mt7921_phy *phy = mt7921_hw_phy(hw);
+	int err;
+
+	cancel_delayed_work_sync(&phy->scan_work);
+	cancel_delayed_work_sync(&phy->mac_work);
+
+	mutex_lock(&dev->mt76.mutex);
+
+	clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+
+	set_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+	ieee80211_iterate_active_interfaces(hw,
+					    IEEE80211_IFACE_ITER_RESUME_ALL,
+					    mt7921_mcu_set_suspend_iter, phy);
+
+	err = mt7921_mcu_set_hif_suspend(dev, true);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	return err;
+}
+
+static int mt7921_resume(struct ieee80211_hw *hw)
+{
+	struct mt7921_dev *dev = mt7921_hw_dev(hw);
+	struct mt7921_phy *phy = mt7921_hw_phy(hw);
+	int err;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	err = mt7921_mcu_set_hif_suspend(dev, false);
+	if (err < 0)
+		goto out;
+
+	set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+	clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state);
+	ieee80211_iterate_active_interfaces(hw,
+					    IEEE80211_IFACE_ITER_RESUME_ALL,
+					    mt7921_mcu_set_suspend_iter, phy);
+
+	ieee80211_queue_delayed_work(hw, &phy->mac_work,
+				     MT7921_WATCHDOG_TIME);
+out:
+	mutex_unlock(&dev->mt76.mutex);
+
+	return err;
+}
+
+static void mt7921_set_wakeup(struct ieee80211_hw *hw, bool enabled)
+{
+	struct mt7921_dev *dev = mt7921_hw_dev(hw);
+	struct mt76_dev *mdev = &dev->mt76;
+
+	device_set_wakeup_enable(mdev->dev, enabled);
+}
+
+static void mt7921_set_rekey_data(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif,
+				  struct cfg80211_gtk_rekey_data *data)
+{
+	struct mt7921_dev *dev = mt7921_hw_dev(hw);
+
+	mutex_lock(&dev->mt76.mutex);
+	mt7921_mcu_update_gtk_rekey(hw, vif, data);
+	mutex_unlock(&dev->mt76.mutex);
+}
+#endif /* CONFIG_PM */
+
 const struct ieee80211_ops mt7921_ops = {
 	.tx = mt7921_tx,
 	.start = mt7921_start,

@@ -968,4 +1041,10 @@ const struct ieee80211_ops mt7921_ops = {
 	.cancel_hw_scan = mt7921_cancel_hw_scan,
 	.sched_scan_start = mt7921_start_sched_scan,
 	.sched_scan_stop = mt7921_stop_sched_scan,
+#ifdef CONFIG_PM
+	.suspend = mt7921_suspend,
+	.resume = mt7921_resume,
+	.set_wakeup = mt7921_set_wakeup,
+	.set_rekey_data = mt7921_set_rekey_data,
+#endif /* CONFIG_PM */
 };

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index 879bf8172fb7..5c22bbd1579d 100644
@@ -362,4 +362,13 @@ u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
 int mt7921_mcu_set_vif_ps(struct mt7921_dev *dev, struct ieee80211_vif *vif);
 int mt7921_mcu_set_bss_pm(struct mt7921_dev *dev, struct ieee80211_vif *vif,
 			  bool enable);
+int mt7921_mcu_set_hif_suspend(struct mt7921_dev *dev, bool suspend);
+void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac,
+				 struct ieee80211_vif *vif);
+int mt7921_mcu_update_gtk_rekey(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif,
+				struct cfg80211_gtk_rekey_data *key);
+int mt7921_mcu_update_arp_filter(struct ieee80211_hw *hw,
+				 struct ieee80211_vif *vif,
+				 struct ieee80211_bss_conf *info);
 #endif

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