From 42aa30b927d84f6765e06f63aec5dc93402ff9a7 Mon Sep 17 00:00:00 2001
From: Lian Chen <lian.chen@mediatek.com>
Date: Mon, 7 Nov 2022 14:47:44 +0800
Subject: [PATCH] wifi: mt76: mt7915: wed: HW ATF support for mt7986

Signed-off-by: Lian Chen <lian.chen@mediatek.com>
---
 mt76_connac_mcu.h    |   2 +
 mt7915/debugfs.c     | 405 +++++++++++++++++++++++++++++++++++++++++++
 mt7915/init.c        |  39 +++++
 mt7915/main.c        |  15 ++
 mt7915/mcu.c         | 165 ++++++++++++++++++
 mt7915/mt7915.h      |  68 ++++++++
 mt7915/mtk_debugfs.c | 133 +++++++++++++-
 7 files changed, 826 insertions(+), 1 deletion(-)

diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index 8228bbb..1257dfa 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1164,6 +1164,7 @@ enum {
 	MCU_EXT_CMD_THERMAL_CTRL = 0x2c,
 	MCU_EXT_CMD_WTBL_UPDATE = 0x32,
 	MCU_EXT_CMD_SET_DRR_CTRL = 0x36,
+	MCU_EXT_CMD_SET_FEATURE_CTRL = 0x38,
 	MCU_EXT_CMD_SET_RDD_CTRL = 0x3a,
 	MCU_EXT_CMD_ATE_CTRL = 0x3d,
 	MCU_EXT_CMD_PROTECT_CTRL = 0x3e,
@@ -1173,6 +1174,7 @@ enum {
 	MCU_EXT_CMD_MUAR_UPDATE = 0x48,
 	MCU_EXT_CMD_BCN_OFFLOAD = 0x49,
 	MCU_EXT_CMD_RX_AIRTIME_CTRL = 0x4a,
+	MCU_EXT_CMD_AT_PROC_MODULE = 0x4b,
 	MCU_EXT_CMD_SET_RX_PATH = 0x4e,
 	MCU_EXT_CMD_EFUSE_FREE_BLOCK = 0x4f,
 	MCU_EXT_CMD_TX_POWER_FEATURE_CTRL = 0x58,
diff --git a/mt7915/debugfs.c b/mt7915/debugfs.c
index 99ce0a9..73e132b 100644
--- a/mt7915/debugfs.c
+++ b/mt7915/debugfs.c
@@ -12,6 +12,10 @@
 #define FW_BIN_LOG_MAGIC_V2	0x44d9c99a
 #endif
 
+#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
+#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
+
+
 /** global debugfs **/
 
 struct hw_queue_map {
@@ -223,6 +227,406 @@ static const struct file_operations mt7915_sys_recovery_ops = {
 	.llseek = default_llseek,
 };
 
+static ssize_t mt7915_vow_get(struct file *file, char __user *user_buf,
+                              size_t count, loff_t *ppos)
+{
+	char *buff;
+	int desc = 0;
+	ssize_t ret;
+	static const size_t bufsz = 1000;
+
+	buff = kmalloc(bufsz, GFP_KERNEL);
+	if (!buff)
+		return -ENOMEM;
+
+	desc += scnprintf(buff + desc, bufsz - desc,
+			  "======== Control =============\n"
+			  "vow_atf_en=<0/1> 0:disable, 1:enable\n"
+			  "vow_watf_en=<0/1> 0:disable, 1:enable\n"
+			  "vow_watf_quantum=<level>-<quantum> unit 256us\n"
+			  "======== Station table =============\n"
+			  "vow_sta_dwrr_quantum_id=<wlanidx>-<WMM AC>-<Qid>\n"
+			  "vow_dwrr_max_wait_time=<time> 256us\n"
+			  "======== Debug =============\n"
+			  "vow_show_en=<0/1> 0:dieable, 1:enable\n"
+			  "vow_show_sta=<STA num>\n"
+			  "show_vow_info\n"
+			  "show_vow_sta_conf=<STA num> 0:all\n");
+	ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+	kfree(buff);
+	return ret;
+}
+
+static int mt7915_set_vow_sta_dwrr_quantum_id(struct mt7915_dev *dev,
+                                              u32 wcid_id,
+                                              u32 ac, u32 val)
+{
+	struct mt7915_sta *msta;
+	struct mt76_wcid *wcid;
+	int ret;
+
+	wcid = rcu_dereference(dev->mt76.wcid[wcid_id]);
+	if ((!wcid) || (!wcid->sta)) {
+		dev_err(dev->mt76.dev, "%s: error station.\n", __func__);
+		return 0;
+	}
+
+	msta = container_of(wcid, struct mt7915_sta, wcid);
+
+	msta->vow_sta_cfg.dwrr_quantum[ac] = val;
+
+	ret = mt7915_mcu_set_vow_drr_ctrl(dev, msta, VOW_DRR_STA_AC0_QUA_ID + ac);
+	dev_info(dev->mt76.dev, "%s: set sta %d, ac %d, quantum id %u.\n",
+                 __func__, wcid_id, ac, val);
+
+	return ret;
+}
+
+static int mt7915_set_vow_atf_en(struct mt7915_dev *dev, u32 val)
+{
+	int ret;
+
+	dev->vow_cfg.vow_atf_en = !!val;
+	dev->vow_cfg.sta_max_wait_time = val ? 0x40 : 0x1;
+	ret = mt7915_mcu_set_vow_feature_ctrl(dev);
+        dev_info(dev->mt76.dev, "%s: set vow_atf_en %u.\n",
+                 __func__, val);
+
+	ret = mt7915_mcu_set_vow_drr_ctrl(dev, NULL,
+                                          VOW_DRR_AIRTIME_DEFICIT_BOUND);
+	dev_info(dev->mt76.dev, "%s: set vow_dwrr_max_wait_time %u.\n",
+                 __func__, dev->vow_cfg.sta_max_wait_time);
+
+	return ret;
+}
+
+static int mt7915_set_vow_dwrr_max_wait_time(struct mt7915_dev *dev,
+                                             u32 val)
+{
+	int ret;
+
+	dev->vow_cfg.sta_max_wait_time = val;
+	ret = mt7915_mcu_set_vow_drr_ctrl(dev, NULL,
+		                          VOW_DRR_AIRTIME_DEFICIT_BOUND);
+	dev_info(dev->mt76.dev, "%s: set vow_dwrr_max_wait_time %u.\n",
+		 __func__, val);
+
+	return ret;
+}
+
+static int mt7915_set_vow_watf_en(struct mt7915_dev *dev, u32 val)
+{
+	int ret;
+
+	dev->vow_cfg.vow_watf_en = !!val;
+	ret = mt7915_mcu_set_vow_feature_ctrl(dev);
+	dev_info(dev->mt76.dev, "%s: set vow_watf_en %u.\n", __func__, val);
+
+	return ret;
+}
+
+static int mt7915_set_vow_watf_quantum(struct mt7915_dev *dev,
+                                       u32 id, u32 val)
+{
+	int ret;
+
+	dev->vow_cfg.vow_sta_dwrr_quantum[id] = val;
+	ret = mt7915_mcu_set_vow_drr_ctrl(dev, NULL,
+				          VOW_DRR_AIRTIME_QUANTUM_L0 + id);
+	dev_info(dev->mt76.dev, "%s: set quantum id %u, val %d.\n",
+                 __func__, id, val);
+
+	return ret;
+}
+
+extern int mt7915_vow_pleinfo_read(struct mt7915_dev *dev);
+static void mt7915_show_station_tx_airtime(struct work_struct *work){
+	struct mt7915_dev *dev = container_of(work, struct mt7915_dev,
+					      vow_work.work);
+	static u32 vow_last_tx_time[MT7916_WTBL_SIZE];
+	struct ieee80211_sta *ieee80211_sta;
+	struct mt7915_sta *msta;
+	struct mt76_wcid *wcid;
+	int idx = 0;
+	int i = 0;
+	u32 addr;
+	int tx_airtime_sum = 0;
+	int tx_add_airtime = 0;
+
+	if (!dev->vow_cfg.vow_show_en)
+		return;
+
+	rcu_read_lock();
+	for (idx = 1; (idx < dev->vow_cfg.vow_show_sta) &&
+	     (idx < MT7915_WTBL_STA); idx++) {
+		if (idx >= ARRAY_SIZE(dev->mt76.wcid))
+			return;
+
+		wcid = rcu_dereference(dev->mt76.wcid[idx]);
+		if (!wcid || !wcid->sta)
+			continue;
+
+		msta = container_of(wcid, struct mt7915_sta, wcid);
+		addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 20);
+		tx_airtime_sum = 0;
+
+		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
+			tx_airtime_sum += mt76_rr(dev, addr);
+			addr += 8;
+		}
+		tx_add_airtime = tx_airtime_sum - vow_last_tx_time[idx];
+		vow_last_tx_time[idx] = tx_airtime_sum;
+
+		ieee80211_sta = container_of((void *)msta, struct ieee80211_sta,
+					     drv_priv);
+
+		dev_info(dev->mt76.dev, "sta%u:" MACSTR " tx -> %u)\n",
+                         idx, MAC2STR(ieee80211_sta->addr), tx_add_airtime);
+	}
+	mt7915_vow_pleinfo_read(dev);
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->vow_work, 1 * HZ);
+	rcu_read_unlock();
+	return;
+}
+
+
+static int mt7915_set_vow_show_en(struct mt7915_dev *dev, u32 val)
+{
+	if (!!dev->vow_cfg.vow_show_en == !!val)
+		return 0;
+	dev->vow_cfg.vow_show_en = val;
+	mt7915_mcu_set_vow_feature_ctrl(dev);
+	if (dev->vow_cfg.vow_show_en) {
+		INIT_DELAYED_WORK(&dev->vow_work, mt7915_show_station_tx_airtime);
+		ieee80211_queue_delayed_work(mt76_hw(dev), &dev->vow_work, 1 * HZ);
+	}
+	else {
+		cancel_delayed_work_sync(&dev->vow_work);
+	}
+	return 0;
+}
+
+static int mt7915_set_vow_show_sta(struct mt7915_dev *dev, u32 val)
+{
+	dev->vow_cfg.vow_show_sta = val;
+	dev_info(dev->mt76.dev, "%s: show station up to %d.\n",
+		 __func__, dev->vow_cfg.vow_show_sta);
+	return 0;
+}
+static int mt7915_set_show_vow_info(struct mt7915_dev *dev)
+{
+	dev_info(dev->mt76.dev, "====== VOW Control Information ======\n");
+	dev_info(dev->mt76.dev, "ATF Enbale: %d\n",
+                 dev->vow_cfg.vow_atf_en);
+	dev_info(dev->mt76.dev, "WATF Enable: %d\n",
+                 dev->vow_cfg.vow_watf_en);
+	dev_info(dev->mt76.dev, "refill_period: %d\n",
+                 dev->vow_cfg.refill_period);
+	dev_info(dev->mt76.dev, "===== VOW Max Deficit Information =====\n");
+	dev_info(dev->mt76.dev, "VOW Max Deficit(unit 256us): %d\n",
+                 dev->vow_cfg.sta_max_wait_time);
+	dev_info(dev->mt76.dev, "===== VOW Quantum Information =====\n");
+	dev_info(dev->mt76.dev, "Quantum ID 0 value(unit 256us): %d\n",
+                 dev->vow_cfg.vow_sta_dwrr_quantum[0]);
+	dev_info(dev->mt76.dev, "Quantum ID 1 value(unit 256us): %d\n",
+                 dev->vow_cfg.vow_sta_dwrr_quantum[1]);
+	dev_info(dev->mt76.dev, "Quantum ID 2 value(unit 256us): %d\n",
+                 dev->vow_cfg.vow_sta_dwrr_quantum[2]);
+	dev_info(dev->mt76.dev, "Quantum ID 3 value(unit 256us): %d\n",
+                 dev->vow_cfg.vow_sta_dwrr_quantum[3]);
+	return 0;
+}
+
+static int mt7915_show_vow_sta_conf(struct mt7915_dev *dev, u32 val)
+{
+	struct ieee80211_sta *ieee80211_sta;
+	struct mt7915_sta *msta;
+	struct mt76_wcid *wcid;
+	u32 i;
+	u8 q;
+
+	if (val > 0 && val < MT7915_WTBL_STA) {
+		wcid = rcu_dereference(dev->mt76.wcid[val]);
+		if (!wcid || !wcid->sta)
+			return 0;
+		msta = container_of(wcid, struct mt7915_sta, wcid);
+		ieee80211_sta = container_of((void *)msta, struct ieee80211_sta,
+					     drv_priv);
+		dev_info(dev->mt76.dev, "%s: ****** sta%d: "MACSTR"******\n",
+			 __func__, val, MAC2STR(ieee80211_sta->addr));
+		q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VO];
+		dev_info(dev->mt76.dev, "Ac0 --> %uus(%u)\n",
+			 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+		q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VI];
+		dev_info(dev->mt76.dev, "Ac1 --> %uus(%u)\n",
+			 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+		q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BE];
+		dev_info(dev->mt76.dev, "Ac2 --> %uus(%u)\n",
+			 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+		q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BK];
+		dev_info(dev->mt76.dev, "Ac3 --> %uus(%u)\n",
+			 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+	}
+	else{
+		for (i = 1; i < MT7915_WTBL_STA; i++) {
+			wcid = rcu_dereference(dev->mt76.wcid[i]);
+			if (!wcid || !wcid->sta)
+				continue;
+			msta = container_of(wcid, struct mt7915_sta, wcid);
+			ieee80211_sta = container_of((void *)msta, struct ieee80211_sta,
+						     drv_priv);
+			dev_info(dev->mt76.dev, "%s: ****** sta%d: "MACSTR"******\n",
+				 __func__, i, MAC2STR(ieee80211_sta->addr));
+			q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VO];
+			dev_info(dev->mt76.dev, "Ac0 --> %uus(%u)\n",
+				 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+			q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VI];
+			dev_info(dev->mt76.dev, "Ac1 --> %uus(%u)\n",
+				 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+			q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BE];
+			dev_info(dev->mt76.dev, "Ac2 --> %uus(%u)\n",
+				 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+			q = msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BK];
+			dev_info(dev->mt76.dev, "Ac3 --> %uus(%u)\n",
+				 (dev->vow_cfg.vow_sta_dwrr_quantum[q] << 8), q);
+		}
+	}
+	return 0;
+}
+
+static ssize_t
+mt7915_vow_set(struct file *file, const char __user *user_buf,
+		  size_t count, loff_t *ppos)
+{
+	struct mt7915_phy *phy = file->private_data;
+	struct mt7915_dev *dev = phy->dev;
+	u32 rv, param1, param2, param3;
+	char buf[128];
+	int ret = 0;
+
+	if (count >= sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(buf, user_buf, count))
+		return -EFAULT;
+
+	if (count && buf[count - 1] == '\n')
+		buf[count - 1] = '\0';
+	else
+		buf[count] = '\0';
+
+	if (!strncmp(buf, "vow_sta_dwrr_quantum_id",
+		strlen("vow_sta_dwrr_quantum_id")))
+	{
+		rv = sscanf(buf, "vow_sta_dwrr_quantum_id=%d-%d-%d",
+			    &param1, &param2, &param3);
+		if ((rv > 2) && (param2 < IEEE80211_NUM_ACS) &&
+                    (param3 < VOW_WATF_LEVEL_NUM)) {
+			ret = mt7915_set_vow_sta_dwrr_quantum_id(dev, param1,
+								 param2, param3);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "vow_atf_en", strlen("vow_atf_en")))
+	{
+		rv = sscanf(buf, "vow_atf_en=%d", &param1);
+		if (rv > 0) {
+			ret = mt7915_set_vow_atf_en(dev, param1);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "vow_dwrr_max_wait_time",
+		 strlen("vow_dwrr_max_wait_time")))
+	{
+		rv = sscanf(buf, "vow_dwrr_max_wait_time=%d", &param1);
+		if (rv > 0) {
+			ret = mt7915_set_vow_dwrr_max_wait_time(dev, param1);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "vow_watf_en", strlen("vow_watf_en")))
+	{
+		rv = sscanf(buf, "vow_watf_en=%d", &param1);
+		if (rv > 0) {
+			ret = mt7915_set_vow_watf_en(dev, param1);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "vow_watf_quantum",
+		 strlen("vow_watf_quantum")))
+	{
+		rv = sscanf(buf, "vow_watf_quantum=%d-%d",
+			    &param1, &param2);
+		if ((dev->vow_cfg.vow_watf_en) && (rv > 1) &&
+                    (param1 < VOW_WATF_LEVEL_NUM)) {
+			ret = mt7915_set_vow_watf_quantum(dev, param1, param2);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "vow_show_en", strlen("vow_show_en")))
+	{
+		rv = sscanf(buf, "vow_show_en=%d", &param1);
+		if (rv > 0) {
+			ret = mt7915_set_vow_show_en(dev, param1);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "vow_show_sta", strlen("vow_show_sta")))
+	{
+		rv = sscanf(buf, "vow_show_sta=%d", &param1);
+		if ((rv > 0)&& (param1 < MT7915_WTBL_STA)) {
+			ret = mt7915_set_vow_show_sta(dev, param1);
+		}
+		else {
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "show_vow_info", strlen("show_vow_info")))
+	{
+		if (rv == 0) {
+			ret = mt7915_set_show_vow_info(dev);
+		}
+		else {
+			dev_err(dev->mt76.dev, "show_vow_info\n");
+			goto out;
+		}
+	}
+	else if (!strncmp(buf, "show_vow_sta_conf", strlen("show_vow_sta_conf")))
+	{
+		rv = sscanf(buf, "show_vow_sta_conf=%d", &param1);
+		if ((rv > 0) && (param1 < MT7915_WTBL_STA)) {
+			ret = mt7915_show_vow_sta_conf(dev, param1);
+		}
+		else {
+			goto out;
+		}
+	}
+
+	if (ret)
+		return ret;
+out:
+	return count;
+}
+
+static const struct file_operations mt7915_vow_ops = {
+	.write = mt7915_vow_set,
+	.read = mt7915_vow_get,
+	.open = simple_open,
+	.llseek = default_llseek,
+};
+
 static int
 mt7915_radar_trigger(void *data, u64 val)
 {
@@ -1346,6 +1750,7 @@ int mt7915_init_debugfs(struct mt7915_phy *phy)
 	debugfs_create_devm_seqfile(dev->mt76.dev, "twt_stats", dir,
 				    mt7915_twt_stats);
 	debugfs_create_file("rf_regval", 0600, dir, dev, &fops_rf_regval);
+	debugfs_create_file("vow", 0600, dir, phy, &mt7915_vow_ops);
 
 	if (!dev->dbdc_support || phy->mt76->band_idx) {
 		debugfs_create_u32("dfs_hw_pattern", 0400, dir,
diff --git a/mt7915/init.c b/mt7915/init.c
index bc16f17..cf576ed 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -583,10 +583,46 @@ mt7915_init_led_mux(struct mt7915_dev *dev)
 	}
 }
 
+void mt7915_vow_init(struct mt7915_dev *dev)
+{
+	struct mt7915_vow_cfg *vow_cfg = &dev->vow_cfg;
+	bool ret;
+	int i;
+
+	if (!(is_mt7915(&dev->mt76)))
+		vow_cfg->vow_feature |= VOW_FEATURE_BWCG;
+
+	vow_cfg->vow_atf_en = 0x1;
+	vow_cfg->sta_max_wait_time = 0x40;
+	vow_cfg->refill_period = 0x5;
+
+	vow_cfg->vow_sta_dwrr_quantum[0] = 0x06;
+	vow_cfg->vow_sta_dwrr_quantum[1] = 0x0c;
+	vow_cfg->vow_sta_dwrr_quantum[2] = 0x10;
+	vow_cfg->vow_sta_dwrr_quantum[3] = 0x14;
+	vow_cfg->vow_sta_dwrr_quantum[4] = 0x18;
+	vow_cfg->vow_sta_dwrr_quantum[5] = 0x1c;
+	vow_cfg->vow_sta_dwrr_quantum[6] = 0x20;
+	vow_cfg->vow_sta_dwrr_quantum[7] = 0x24;
+
+	ret = mt7915_mcu_set_vow_drr_ctrl(dev, NULL,
+					  VOW_DRR_AIRTIME_DEFICIT_BOUND);
+	ret = mt7915_mcu_set_vow_drr_ctrl(dev, NULL,
+					  VOW_DRR_AIRTIME_QUANTUM_ALL);
+
+	for(i = 0; i < 4; i++)
+		ret = mt7915_mcu_set_vow_drr_ctrl(dev, NULL,
+						  VOW_DRR_AIRTIME_QUANTUM_L0 + i);
+
+	ret = mt7915_mcu_set_vow_feature_ctrl(dev);
+	return;
+}
+
 void mt7915_mac_init(struct mt7915_dev *dev)
 {
 	int i;
 	u32 rx_len = is_mt7915(&dev->mt76) ? 0x400 : 0x680;
+	struct wiphy *wiphy = dev->phy.mt76->hw->wiphy;
 
 	/* config pse qid6 wfdma port selection */
 	if (!is_mt7915(&dev->mt76) && dev->hif2)
@@ -610,6 +646,9 @@ void mt7915_mac_init(struct mt7915_dev *dev)
 		mt7915_mac_init_band(dev, i);
 
 	mt7915_init_led_mux(dev);
+
+	if (mt7915_is_atf_default_on(wiphy, dev))
+		mt7915_vow_init(dev);
 }
 
 int mt7915_txbf_init(struct mt7915_dev *dev)
diff --git a/mt7915/main.c b/mt7915/main.c
index 6cf5f41..f29ac4f 100644
--- a/mt7915/main.c
+++ b/mt7915/main.c
@@ -217,6 +217,7 @@ int mt7915_init_vif(struct mt7915_phy *phy, struct ieee80211_vif *vif, bool bf_e
 {
 	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
 	struct mt7915_dev *dev = phy->dev;
+	struct wiphy *wiphy = dev->phy.mt76->hw->wiphy;
 	struct mt76_txq *mtxq;
 	bool ext_phy = phy != &dev->phy;
 	int idx, ret = 0;
@@ -278,6 +279,9 @@ int mt7915_init_vif(struct mt7915_phy *phy, struct ieee80211_vif *vif, bool bf_e
 	mt7915_mcu_add_sta(dev, vif, NULL, true);
 	rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
 
+	if (mt7915_is_atf_default_on(wiphy, dev))
+		mt7915_mcu_set_vow_band(dev, mvif);
+
 	return ret;
 }
 
@@ -755,6 +759,7 @@ int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv;
 	struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv;
 	bool ext_phy = mvif->phy != &dev->phy;
+	struct wiphy *wiphy = dev->phy.mt76->hw->wiphy;
 #ifdef CONFIG_MTK_VENDOR
 	struct mt7915_phy *phy = ext_phy ? mt7915_ext_phy(dev) : &dev->phy;
 #endif
@@ -805,6 +810,16 @@ int mt7915_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	if (phy->muru_onoff & MUMIMO_DL_CERT)
 		mt7915_mcu_set_mimo(phy, 0);
 #endif
+	if (mt7915_is_atf_default_on(wiphy, dev)) {
+		msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VO] = 2;
+		msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VI] = 2;
+		msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BE] = 1;
+		msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BK] = 0;
+		mt7915_mcu_set_vow_drr_ctrl(dev, msta, VOW_DRR_STA_BSS_GROUP);
+		mt7915_mcu_set_vow_drr_ctrl(dev, msta, VOW_DRR_STA_PAUSE_SETTING);
+		mt7915_mcu_set_vow_drr_ctrl(dev, msta, VOW_DRR_STA_ALL);
+	}
+
 	return 0;
 }
 
diff --git a/mt7915/mcu.c b/mt7915/mcu.c
index 302a022..94362c0 100644
--- a/mt7915/mcu.c
+++ b/mt7915/mcu.c
@@ -3550,6 +3550,171 @@ int mt7915_mcu_set_ser(struct mt7915_dev *dev, u8 action, u8 set, u8 band)
 				 &req, sizeof(req), false);
 }
 
+int mt7915_mcu_set_vow_drr_ctrl(struct mt7915_dev *dev,
+                                struct mt7915_sta *msta,
+                                u32 subcmd)
+{
+	u32 setting = 0;
+	u32 i;
+
+	struct {
+		__le32 action;
+		u8 wlan_idx_lo;
+		u8 status;
+		u8 wlan_idx_hi;
+		u8 rsv0[5];
+		union {
+			__le32 com_value;
+			struct {
+				u8 air_time_quantum[VOW_MAX_STA_DWRR_NUM];
+			}air_time_quantum_all;
+		}air_time_ctrl;
+	} __packed req = {
+		.action = cpu_to_le32(subcmd),
+		.wlan_idx_lo = msta ? to_wcid_lo(msta->wcid.idx) : to_wcid_lo(0x0),
+		.wlan_idx_hi = msta ? to_wcid_hi(msta->wcid.idx) : to_wcid_hi(0x0),
+	};
+
+	switch (subcmd) {
+		case VOW_DRR_STA_ALL:{
+			setting |= 0x00;
+			setting |= msta->vif->mt76.idx;
+			setting |= msta->vow_sta_cfg.ac_change_rule << 4;
+			setting |= (msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VO] << 8);
+			setting |= (msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VI] << 12);
+			setting |= (msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BE] << 16);
+			setting |= (msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BK] << 20);
+			if (dev->vow_cfg.vow_feature & VOW_FEATURE_BWCG)
+                                setting |= ((UMAC_BWC_GROUP_MIN) << 24);
+			req.air_time_ctrl.com_value = cpu_to_le32(setting);
+			break;
+		}
+
+		case VOW_DRR_STA_BSS_GROUP:
+			req.air_time_ctrl.com_value = cpu_to_le32(0x0);
+			break;
+
+		case VOW_DRR_STA_PAUSE_SETTING:
+			req.air_time_ctrl.com_value = cpu_to_le32(msta->vow_sta_cfg.paused);
+			break;
+
+		case VOW_DRR_STA_AC0_QUA_ID:
+			req.air_time_ctrl.com_value =
+				cpu_to_le32(msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VO]);
+			break;
+
+		case VOW_DRR_STA_AC1_QUA_ID:
+			req.air_time_ctrl.com_value =
+				cpu_to_le32(msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_VI]);
+			break;
+
+		case VOW_DRR_STA_AC2_QUA_ID:
+			req.air_time_ctrl.com_value =
+				cpu_to_le32(msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BE]);
+			break;
+
+		case VOW_DRR_STA_AC3_QUA_ID:
+			req.air_time_ctrl.com_value =
+				cpu_to_le32(msta->vow_sta_cfg.dwrr_quantum[IEEE80211_AC_BK]);
+			break;
+
+		case VOW_DRR_AIRTIME_DEFICIT_BOUND:
+			req.air_time_ctrl.com_value =
+				cpu_to_le32(dev->vow_cfg.sta_max_wait_time);
+			break;
+
+		case VOW_DRR_AIRTIME_QUANTUM_L0:
+		case VOW_DRR_AIRTIME_QUANTUM_L1:
+		case VOW_DRR_AIRTIME_QUANTUM_L2:
+		case VOW_DRR_AIRTIME_QUANTUM_L3:
+		case VOW_DRR_AIRTIME_QUANTUM_L4:
+		case VOW_DRR_AIRTIME_QUANTUM_L5:
+		case VOW_DRR_AIRTIME_QUANTUM_L6:
+		case VOW_DRR_AIRTIME_QUANTUM_L7:
+			req.air_time_ctrl.com_value =
+				cpu_to_le32(dev->vow_cfg.vow_sta_dwrr_quantum[subcmd -
+				            VOW_DRR_AIRTIME_QUANTUM_L0]);
+			break;
+
+		case VOW_DRR_AIRTIME_QUANTUM_ALL: {
+			for (i = 0; i < VOW_MAX_STA_DWRR_NUM; i++) {
+				req.air_time_ctrl.air_time_quantum_all.air_time_quantum[i] =
+					dev->vow_cfg.vow_sta_dwrr_quantum[i];
+			}
+			break;
+		}
+
+		default:
+			break;
+	}
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(SET_DRR_CTRL),
+				 &req, sizeof(req), false);
+}
+
+int mt7915_mcu_set_vow_feature_ctrl(struct mt7915_dev *dev)
+{
+	u16 value = 0;
+	u32 sch_value = 0;
+
+	struct vow_feature_ctrl {
+		__le16 bss_flag;
+		__le16 vow_ctrl_flag;
+		__le16 bss_value[9];
+		__le16 vow_ctrl_val;
+		__le16 time_token_value[2];
+                __le16 length_token_value[2];
+		__le32 tx_ctrl;
+		__le32 sch_ctrl;
+	} __packed req = {
+		.bss_flag = cpu_to_le16(0xffff),
+		.vow_ctrl_flag = cpu_to_le16(0xf231),
+		.bss_value[0] = cpu_to_le16(0xffff),
+		.bss_value[2] = cpu_to_le16(0xffff),
+		.bss_value[8] = cpu_to_le16(0xffff),
+		.time_token_value[0] = cpu_to_le16(0xffff),
+	};
+
+	value |= dev->vow_cfg.refill_period;
+	value |= 1 << 4;
+	value |= 1 << 5;
+	value |= dev->vow_cfg.vow_watf_en << 9;
+	value |= 1 << 12;
+	value |= dev->vow_cfg.vow_atf_en << 13;
+	value |= 1 << 14;
+	req.vow_ctrl_val = value;
+	if (dev->vow_cfg.vow_atf_en)
+		req.tx_ctrl = cpu_to_le32(0x6bf69e1f);
+	sch_value |= 1 << 6;
+	sch_value |= (((dev->vow_cfg.vow_show_en == 0) ? 0 :
+                      (dev->vow_cfg.vow_show_en - 1 )) << 4);
+	req.sch_ctrl = sch_value;
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(SET_FEATURE_CTRL),
+							 &req, sizeof(req), false);
+}
+
+int mt7915_mcu_set_vow_band(struct mt7915_dev *dev, struct mt7915_vif *mvif)
+{
+	struct module_ctrl {
+		__le16 action;
+		__le16 sub_action;
+		__le32 rsv1[5];
+		u8 rsv2[72];
+		u8 group_idx;
+		u8 band_idx;
+		u8 rsv3[2];
+	} __packed req = {
+		.action = cpu_to_le16(0x1),
+		.sub_action = cpu_to_le16(0x4),
+		.group_idx = mvif->mt76.band_idx * 4 + mvif->mt76.omac_idx % 4,
+		.band_idx = mvif->mt76.band_idx,
+	};
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(AT_PROC_MODULE),
+				 &req, sizeof(req), false);
+}
+
 int mt7915_mcu_set_txbf(struct mt7915_dev *dev, u8 action)
 {
 #define MT_BF_PROCESSING	4
diff --git a/mt7915/mt7915.h b/mt7915/mt7915.h
index 36f852e..4447971 100644
--- a/mt7915/mt7915.h
+++ b/mt7915/mt7915.h
@@ -141,6 +141,58 @@ struct mt7915_twt_flow {
 
 DECLARE_EWMA(avg_signal, 10, 8)
 
+#define VOW_MAX_STA_DWRR_NUM    8
+#define VOW_WATF_LEVEL_NUM      4
+#define VOW_FEATURE_BWCG        BIT(3)
+#define UMAC_BWC_GROUP_MIN      40
+
+
+enum ext_cmd_vow_drr_ctrl {
+	/* Type 1 */
+	VOW_DRR_STA_ALL             	= 0x00,
+	VOW_DRR_STA_BSS_GROUP           = 0x01,
+	VOW_DRR_STA_AC0_QUA_ID      	= 0x03,
+	VOW_DRR_STA_AC1_QUA_ID      	= 0x04,
+	VOW_DRR_STA_AC2_QUA_ID      	= 0x05,
+	VOW_DRR_STA_AC3_QUA_ID      	= 0x06,
+
+	/* Type 2 */
+	VOW_DRR_AIRTIME_DEFICIT_BOUND   = 0x10,
+
+	/* Type 3 */
+	VOW_DRR_AIRTIME_QUANTUM_L0  	= 0x20,
+	VOW_DRR_AIRTIME_QUANTUM_L1  	= 0x21,
+	VOW_DRR_AIRTIME_QUANTUM_L2  	= 0x22,
+	VOW_DRR_AIRTIME_QUANTUM_L3  	= 0x23,
+	VOW_DRR_AIRTIME_QUANTUM_L4  	= 0x24,
+	VOW_DRR_AIRTIME_QUANTUM_L5  	= 0x25,
+	VOW_DRR_AIRTIME_QUANTUM_L6  	= 0x26,
+	VOW_DRR_AIRTIME_QUANTUM_L7  	= 0x27,
+	VOW_DRR_AIRTIME_QUANTUM_ALL 	= 0x28,
+	VOW_DRR_STA_PAUSE_SETTING       = 0x30,
+};
+
+struct mt7915_vow_sta_cfg{
+	u8 dwrr_quantum[IEEE80211_NUM_ACS];
+	u8 ac_change_rule;
+	bool paused;
+};
+
+struct mt7915_vow_cfg{
+	/*ATF setting */
+	u32  vow_feature;
+	bool vow_atf_en;
+	u8   refill_period;
+	u8   sta_max_wait_time;
+	u8   vow_sta_dwrr_quantum[VOW_MAX_STA_DWRR_NUM];
+	u8   vow_show_en;
+	u32  vow_show_sta;
+
+	/*WATF setting */
+	bool	vow_watf_en;
+};
+
+
 struct mt7915_sta {
 	struct mt76_wcid wcid; /* must be first */
 
@@ -161,6 +213,7 @@ struct mt7915_sta {
 		u8 flowid_mask;
 		struct mt7915_twt_flow flow[MT7915_MAX_STA_TWT_AGRT];
 	} twt;
+	struct mt7915_vow_sta_cfg vow_sta_cfg;
 };
 
 struct mt7915_vif_cap {
@@ -416,6 +469,8 @@ struct mt7915_dev {
 	} dbg;
 	const struct mt7915_dbg_reg_desc *dbg_reg;
 #endif
+	struct delayed_work vow_work;
+	struct mt7915_vow_cfg vow_cfg;
 };
 
 enum {
@@ -448,6 +503,15 @@ enum mt7915_rdd_cmd {
 	RDD_IRQ_OFF,
 };
 
+static inline bool
+mt7915_is_atf_default_on(struct wiphy *wiphy, struct mt7915_dev *dev)
+{
+	return ((!wiphy_ext_feature_isset(wiphy,
+                NL80211_EXT_FEATURE_AIRTIME_FAIRNESS)) ||
+                mtk_wed_device_active(&dev->mt76.mmio.wed));
+}
+
+
 static inline struct mt7915_phy *
 mt7915_hw_phy(struct ieee80211_hw *hw)
 {
@@ -578,6 +642,10 @@ int mt7915_mcu_set_mac(struct mt7915_dev *dev, int band, bool enable,
 int mt7915_mcu_set_test_param(struct mt7915_dev *dev, u8 param, bool test_mode,
 			      u8 en);
 int mt7915_mcu_set_ser(struct mt7915_dev *dev, u8 action, u8 set, u8 band);
+int mt7915_mcu_set_vow_drr_ctrl(struct mt7915_dev *dev, struct mt7915_sta *msta,
+                                u32 subcmd);
+int mt7915_mcu_set_vow_feature_ctrl(struct mt7915_dev *dev);
+int mt7915_mcu_set_vow_band(struct mt7915_dev *dev, struct mt7915_vif *mvif);
 int mt7915_mcu_set_sku_en(struct mt7915_phy *phy, bool enable);
 int mt7915_mcu_set_txpower_sku(struct mt7915_phy *phy);
 int mt7915_mcu_get_txpower_sku(struct mt7915_phy *phy, s8 *txpower, int len,
diff --git a/mt7915/mtk_debugfs.c b/mt7915/mtk_debugfs.c
index 97eb072..a08f7ab 100644
--- a/mt7915/mtk_debugfs.c
+++ b/mt7915/mtk_debugfs.c
@@ -1368,7 +1368,6 @@ static EMPTY_QUEUE_INFO_T ple_txcmd_queue_empty_info[] = {
 };
 
 
-
 static char* sta_ctrl_reg[] = {"ENABLE", "DISABLE", "PAUSE"};
 static u32 chip_show_sta_acq_info(struct seq_file *s, struct mt7915_dev *dev, u32 *ple_stat,
 				  u32 *sta_pause, u32 *dis_sta_map,
@@ -1522,6 +1521,138 @@ static void chip_get_sta_pause(struct mt7915_dev *dev, u32 *sta_pause)
 	}
 }
 
+u32 vow_chip_show_sta_acq_info(struct mt7915_dev *dev, u32 *ple_stat,
+			       u32 *sta_pause, u32 *dis_sta_map,
+			       u32 dumptxd)
+{
+	int i, j;
+	u32 total_nonempty_cnt = 0;
+	u32 ac_num = 9, all_ac_num;
+	static char* sta_ctrl_reg[] = {"ENABLE", "DISABLE", "PAUSE"};
+	if (!is_mt7915(&dev->mt76))
+		ac_num = 17;
+
+	all_ac_num = ac_num * 4;
+
+	for (j = 0; j < all_ac_num; j++) { /* show AC Q info */
+		for (i = 0; i < 32; i++) {
+			if (((ple_stat[j + 1] & (0x1 << i)) >> i) == 0) {
+				u32 hfid, tfid, pktcnt, ac_n = j / ac_num, ctrl = 0;
+				u32 sta_num = i + (j % ac_num) * 32, fl_que_ctrl[3] = {0};
+				u32 wmmidx = 0;
+				struct mt7915_sta *msta;
+				struct mt76_wcid *wcid;
+				struct ieee80211_sta *sta = NULL;
+
+				wcid = rcu_dereference(dev->mt76.wcid[sta_num]);
+				sta = wcid_to_sta(wcid);
+				if (!sta) {
+					printk("ERROR!! no found STA wcid=%d\n", sta_num);
+					continue;
+				}
+				msta = container_of(wcid, struct mt7915_sta, wcid);
+				wmmidx = msta->vif->mt76.wmm_idx;
+
+				dev_info(dev->mt76.dev, "\tSTA%d AC%d: ", sta_num, ac_n);
+
+				fl_que_ctrl[0] |= MT_DBG_PLE_FL_QUE_CTRL0_EXECUTE_MASK;
+				fl_que_ctrl[0] |= (ENUM_UMAC_LMAC_PORT_2 <<
+						   MT_PLE_FL_QUE_CTRL0_Q_BUF_PID_SHFT);
+				fl_que_ctrl[0] |= (ac_n << MT_PLE_FL_QUE_CTRL0_Q_BUF_QID_SHFT);
+				fl_que_ctrl[0] |= sta_num;
+				mt76_wr(dev, MT_DBG_PLE_FL_QUE_CTRL0, fl_que_ctrl[0]);
+				fl_que_ctrl[1] = mt76_rr(dev, MT_DBG_PLE_FL_QUE_CTRL2);
+				fl_que_ctrl[2] = mt76_rr(dev, MT_DBG_PLE_FL_QUE_CTRL3);
+				hfid = FIELD_GET(MT_DBG_PLE_FL_QUE_CTRL2_Q_HEAD_FID_MASK,
+						 fl_que_ctrl[1]);
+				tfid = FIELD_GET(MT_DBG_PLE_FL_QUE_CTRL2_Q_TAIL_FID_MASK,
+						 fl_que_ctrl[1]);
+				pktcnt = FIELD_GET(MT_DBG_PLE_FL_QUE_CTRL3_Q_PKT_NUM_MASK,
+						   fl_que_ctrl[2]);
+				dev_info(dev->mt76.dev, "tail/head fid = 0x%03x/0x%03x, pkt cnt = 0x%03x",
+					 tfid, hfid, pktcnt);
+
+				if (((sta_pause[j % 6] & 0x1 << i) >> i) == 1)
+					ctrl = 2;
+
+				if (((dis_sta_map[j % 6] & 0x1 << i) >> i) == 1)
+					ctrl = 1;
+
+				dev_info(dev->mt76.dev, " ctrl = %s", sta_ctrl_reg[ctrl]);
+				dev_info(dev->mt76.dev, " (wmmidx=%d)\n", wmmidx);
+
+				total_nonempty_cnt++;
+			}
+		}
+	}
+
+	return total_nonempty_cnt;
+}
+
+int mt7915_vow_pleinfo_read(struct mt7915_dev *dev)
+{
+	u32 ple_stat[70] = {0}, pg_flow_ctrl[8] = {0};
+	u32 ple_txcmd_stat;
+	u32 sta_pause[CR_NUM_OF_AC] = {0}, dis_sta_map[CR_NUM_OF_AC] = {0};
+	int i;
+
+	chip_get_ple_acq_stat(dev, ple_stat);
+	ple_txcmd_stat = mt76_rr(dev, MT_DBG_PLE_TXCMD_Q_EMPTY);
+	pg_flow_ctrl[0] = mt76_rr(dev, MT_DBG_PLE_FREEPG_CNT);
+	pg_flow_ctrl[1] = mt76_rr(dev, MT_DBG_PLE_FREEPG_HEAD_TAIL);
+	pg_flow_ctrl[2] = mt76_rr(dev, MT_DBG_PLE_PG_HIF_GROUP);
+	pg_flow_ctrl[3] = mt76_rr(dev, MT_DBG_PLE_HIF_PG_INFO);
+	pg_flow_ctrl[4] = mt76_rr(dev, MT_DBG_PLE_PG_CPU_GROUP);
+	pg_flow_ctrl[5] = mt76_rr(dev, MT_DBG_PLE_CPU_PG_INFO);
+	pg_flow_ctrl[6] = mt76_rr(dev, MT_DBG_PLE_PG_HIF_TXCMD_GROUP);
+	pg_flow_ctrl[7] = mt76_rr(dev, MT_DBG_PLE_HIF_TXCMD_PG_INFO);
+	chip_get_dis_sta_map(dev, dis_sta_map);
+	chip_get_sta_pause(dev, sta_pause);
+
+	dev_info(dev->mt76.dev, "PLE Configuration Info:\n");
+
+	for (i = 0; i < 32; i++) {
+		if (((ple_stat[0] & (0x1 << i)) >> i) == 0) {
+			u32 hfid, tfid, pktcnt, fl_que_ctrl[3] = {0};
+
+			if (ple_queue_empty_info[i].QueueName != NULL) {
+				fl_que_ctrl[0] |= MT_DBG_PLE_FL_QUE_CTRL0_EXECUTE_MASK;
+				fl_que_ctrl[0] |= (ple_queue_empty_info[i].Portid <<
+						   MT_PLE_FL_QUE_CTRL0_Q_BUF_PID_SHFT);
+				fl_que_ctrl[0] |= (ple_queue_empty_info[i].Queueid <<
+						   MT_PLE_FL_QUE_CTRL0_Q_BUF_QID_SHFT);
+			} else
+				continue;
+
+			if (ple_queue_empty_info[i].Queueid >=
+			    ENUM_UMAC_LMAC_PLE_TX_Q_ALTX_0 &&
+		            ple_queue_empty_info[i].Queueid <=
+			    ENUM_UMAC_LMAC_PLE_TX_Q_PSMP_0)
+			    /* band0 set TGID 0, bit31 = 0 */
+			    mt76_wr(dev, MT_DBG_PLE_FL_QUE_CTRL1, 0x0);
+			else if (ple_queue_empty_info[i].Queueid >=
+				 ENUM_UMAC_LMAC_PLE_TX_Q_ALTX_1 &&
+				 ple_queue_empty_info[i].Queueid <=
+				 ENUM_UMAC_LMAC_PLE_TX_Q_PSMP_1)
+				/* band1 set TGID 1, bit31 = 1 */
+				mt76_wr(dev, MT_DBG_PLE_FL_QUE_CTRL1, 0x80000000);
+
+			mt76_wr(dev, MT_DBG_PLE_FL_QUE_CTRL0, fl_que_ctrl[0]);
+			fl_que_ctrl[1] = mt76_rr(dev, MT_DBG_PLE_FL_QUE_CTRL2);
+			fl_que_ctrl[2] = mt76_rr(dev, MT_DBG_PLE_FL_QUE_CTRL3);
+			hfid = FIELD_GET(MT_DBG_PLE_FL_QUE_CTRL2_Q_HEAD_FID_MASK,
+					 fl_que_ctrl[1]);
+			tfid = FIELD_GET(MT_DBG_PLE_FL_QUE_CTRL2_Q_TAIL_FID_MASK,
+					 fl_que_ctrl[1]);
+			pktcnt = FIELD_GET(MT_DBG_PLE_FL_QUE_CTRL3_Q_PKT_NUM_MASK,
+					   fl_que_ctrl[2]);
+		}
+	}
+
+	vow_chip_show_sta_acq_info(dev, ple_stat, sta_pause, dis_sta_map, 0);
+
+	return 0;
+}
 static int mt7915_pleinfo_read(struct seq_file *s, void *data)
 {
 	struct mt7915_dev *dev = dev_get_drvdata(s->private);
-- 
2.18.0