// SPDX-License-Identifier: ISC
/* Copyright (C) 2020 MediaTek Inc. */

#include <linux/fs.h>
#include <linux/firmware.h>
#include "mt7921.h"
#include "mcu.h"
#include "../mt76_connac2_mac.h"
#include "../mt792x_trace.h"

#define MT_STA_BFER			BIT(0)
#define MT_STA_BFEE			BIT(1)

static bool mt7921_disable_clc;
module_param_named(disable_clc, mt7921_disable_clc, bool, 0644);
MODULE_PARM_DESC(disable_clc, "disable CLC support");

int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
			      struct sk_buff *skb, int seq)
{
	int mcu_cmd = FIELD_GET(__MCU_CMD_FIELD_ID, cmd);
	struct mt76_connac2_mcu_rxd *rxd;
	int ret = 0;

	if (!skb) {
		dev_err(mdev->dev, "Message %08x (seq %d) timeout\n",
			cmd, seq);
		mt792x_reset(mdev);

		return -ETIMEDOUT;
	}

	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
	if (seq != rxd->seq)
		return -EAGAIN;

	if (cmd == MCU_CMD(PATCH_SEM_CONTROL) ||
	    cmd == MCU_CMD(PATCH_FINISH_REQ)) {
		skb_pull(skb, sizeof(*rxd) - 4);
		ret = *skb->data;
	} else if (cmd == MCU_EXT_CMD(THERMAL_CTRL)) {
		skb_pull(skb, sizeof(*rxd) + 4);
		ret = le32_to_cpu(*(__le32 *)skb->data);
	} else if (cmd == MCU_UNI_CMD(DEV_INFO_UPDATE) ||
		   cmd == MCU_UNI_CMD(BSS_INFO_UPDATE) ||
		   cmd == MCU_UNI_CMD(STA_REC_UPDATE) ||
		   cmd == MCU_UNI_CMD(HIF_CTRL) ||
		   cmd == MCU_UNI_CMD(OFFLOAD) ||
		   cmd == MCU_UNI_CMD(SUSPEND)) {
		struct mt76_connac_mcu_uni_event *event;

		skb_pull(skb, sizeof(*rxd));
		event = (struct mt76_connac_mcu_uni_event *)skb->data;
		ret = le32_to_cpu(event->status);
		/* skip invalid event */
		if (mcu_cmd != event->cid)
			ret = -EAGAIN;
	} else if (cmd == MCU_CE_QUERY(REG_READ)) {
		struct mt76_connac_mcu_reg_event *event;

		skb_pull(skb, sizeof(*rxd));
		event = (struct mt76_connac_mcu_reg_event *)skb->data;
		ret = (int)le32_to_cpu(event->val);
	} else {
		skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd));
	}

	return ret;
}
EXPORT_SYMBOL_GPL(mt7921_mcu_parse_response);

static int mt7921_mcu_read_eeprom(struct mt792x_dev *dev, u32 offset, u8 *val)
{
	struct mt7921_mcu_eeprom_info *res, req = {
		.addr = cpu_to_le32(round_down(offset,
				    MT7921_EEPROM_BLOCK_SIZE)),
	};
	struct sk_buff *skb;
	int ret;

	ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_EXT_QUERY(EFUSE_ACCESS),
					&req, sizeof(req), true, &skb);
	if (ret)
		return ret;

	res = (struct mt7921_mcu_eeprom_info *)skb->data;
	*val = res->data[offset % MT7921_EEPROM_BLOCK_SIZE];
	dev_kfree_skb(skb);

	return 0;
}

#ifdef CONFIG_PM

static int
mt7921_mcu_set_ipv6_ns_filter(struct mt76_dev *dev,
			      struct ieee80211_vif *vif, bool suspend)
{
	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
	struct {
		struct {
			u8 bss_idx;
			u8 pad[3];
		} __packed hdr;
		struct mt76_connac_arpns_tlv arpns;
	} req = {
		.hdr = {
			.bss_idx = mvif->mt76.idx,
		},
		.arpns = {
			.tag = cpu_to_le16(UNI_OFFLOAD_OFFLOAD_ND),
			.len = cpu_to_le16(sizeof(struct mt76_connac_arpns_tlv)),
			.mode = suspend,
		},
	};

	return mt76_mcu_send_msg(dev, MCU_UNI_CMD_OFFLOAD, &req, sizeof(req),
				 true);
}

void mt7921_mcu_set_suspend_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
	if (IS_ENABLED(CONFIG_IPV6)) {
		struct mt76_phy *phy = priv;

		mt7921_mcu_set_ipv6_ns_filter(phy->dev, vif,
					      !test_bit(MT76_STATE_RUNNING,
					      &phy->state));
	}

	mt76_connac_mcu_set_suspend_iter(priv, mac, vif);
}

#endif /* CONFIG_PM */

static void
mt7921_mcu_uni_roc_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt7921_roc_grant_tlv *grant;
	struct mt76_connac2_mcu_rxd *rxd;
	int duration;

	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
	grant = (struct mt7921_roc_grant_tlv *)(rxd->tlv + 4);

	/* should never happen */
	WARN_ON_ONCE((le16_to_cpu(grant->tag) != UNI_EVENT_ROC_GRANT));

	if (grant->reqtype == MT7921_ROC_REQ_ROC)
		ieee80211_ready_on_channel(dev->mt76.phy.hw);

	dev->phy.roc_grant = true;
	wake_up(&dev->phy.roc_wait);
	duration = le32_to_cpu(grant->max_interval);
	mod_timer(&dev->phy.roc_timer,
		  jiffies + msecs_to_jiffies(duration));
}

static void
mt7921_mcu_scan_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt76_phy *mphy = &dev->mt76.phy;
	struct mt792x_phy *phy = (struct mt792x_phy *)mphy->priv;

	spin_lock_bh(&dev->mt76.lock);
	__skb_queue_tail(&phy->scan_event_list, skb);
	spin_unlock_bh(&dev->mt76.lock);

	ieee80211_queue_delayed_work(mphy->hw, &phy->scan_work,
				     MT792x_HW_SCAN_TIMEOUT);
}

static void
mt7921_mcu_connection_loss_iter(void *priv, u8 *mac,
				struct ieee80211_vif *vif)
{
	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
	struct mt76_connac_beacon_loss_event *event = priv;

	if (mvif->idx != event->bss_idx)
		return;

	if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER) ||
	    vif->type != NL80211_IFTYPE_STATION)
		return;

	ieee80211_connection_loss(vif);
}

static void
mt7921_mcu_connection_loss_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt76_connac_beacon_loss_event *event;
	struct mt76_phy *mphy = &dev->mt76.phy;

	skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd));
	event = (struct mt76_connac_beacon_loss_event *)skb->data;

	ieee80211_iterate_active_interfaces_atomic(mphy->hw,
					IEEE80211_IFACE_ITER_RESUME_ALL,
					mt7921_mcu_connection_loss_iter, event);
}

static void
mt7921_mcu_debug_msg_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt7921_debug_msg {
		__le16 id;
		u8 type;
		u8 flag;
		__le32 value;
		__le16 len;
		u8 content[512];
	} __packed * msg;

	skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd));
	msg = (struct mt7921_debug_msg *)skb->data;

	if (msg->type == 3) { /* fw log */
		u16 len = min_t(u16, le16_to_cpu(msg->len), 512);
		int i;

		for (i = 0 ; i < len; i++) {
			if (!msg->content[i])
				msg->content[i] = ' ';
		}
		wiphy_info(mt76_hw(dev)->wiphy, "%.*s", len, msg->content);
	}
}

static void
mt7921_mcu_low_power_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt7921_mcu_lp_event {
		u8 state;
		u8 reserved[3];
	} __packed * event;

	skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd));
	event = (struct mt7921_mcu_lp_event *)skb->data;

	trace_lp_event(dev, event->state);
}

static void
mt7921_mcu_tx_done_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt7921_mcu_tx_done_event *event;

	skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd));
	event = (struct mt7921_mcu_tx_done_event *)skb->data;

	mt7921_mac_add_txs(dev, event->txs);
}

static void
mt7921_mcu_rx_unsolicited_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt76_connac2_mcu_rxd *rxd;

	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
	switch (rxd->eid) {
	case MCU_EVENT_BSS_BEACON_LOSS:
		mt7921_mcu_connection_loss_event(dev, skb);
		break;
	case MCU_EVENT_SCHED_SCAN_DONE:
	case MCU_EVENT_SCAN_DONE:
		mt7921_mcu_scan_event(dev, skb);
		return;
	case MCU_EVENT_DBG_MSG:
		mt7921_mcu_debug_msg_event(dev, skb);
		break;
	case MCU_EVENT_COREDUMP:
		dev->fw_assert = true;
		mt76_connac_mcu_coredump_event(&dev->mt76, skb,
					       &dev->coredump);
		return;
	case MCU_EVENT_LP_INFO:
		mt7921_mcu_low_power_event(dev, skb);
		break;
	case MCU_EVENT_TX_DONE:
		mt7921_mcu_tx_done_event(dev, skb);
		break;
	default:
		break;
	}
	dev_kfree_skb(skb);
}

static void
mt7921_mcu_uni_rx_unsolicited_event(struct mt792x_dev *dev,
				    struct sk_buff *skb)
{
	struct mt76_connac2_mcu_rxd *rxd;

	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;

	switch (rxd->eid) {
	case MCU_UNI_EVENT_ROC:
		mt7921_mcu_uni_roc_event(dev, skb);
		break;
	default:
		break;
	}
	dev_kfree_skb(skb);
}

void mt7921_mcu_rx_event(struct mt792x_dev *dev, struct sk_buff *skb)
{
	struct mt76_connac2_mcu_rxd *rxd;

	if (skb_linearize(skb))
		return;

	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;

	if (rxd->option & MCU_UNI_CMD_UNSOLICITED_EVENT) {
		mt7921_mcu_uni_rx_unsolicited_event(dev, skb);
		return;
	}

	if (rxd->eid == 0x6) {
		mt76_mcu_rx_event(&dev->mt76, skb);
		return;
	}

	if (rxd->ext_eid == MCU_EXT_EVENT_RATE_REPORT ||
	    rxd->eid == MCU_EVENT_BSS_BEACON_LOSS ||
	    rxd->eid == MCU_EVENT_SCHED_SCAN_DONE ||
	    rxd->eid == MCU_EVENT_SCAN_DONE ||
	    rxd->eid == MCU_EVENT_TX_DONE ||
	    rxd->eid == MCU_EVENT_DBG_MSG ||
	    rxd->eid == MCU_EVENT_COREDUMP ||
	    rxd->eid == MCU_EVENT_LP_INFO ||
	    !rxd->seq)
		mt7921_mcu_rx_unsolicited_event(dev, skb);
	else
		mt76_mcu_rx_event(&dev->mt76, skb);
}

/** starec & wtbl **/
int mt7921_mcu_uni_tx_ba(struct mt792x_dev *dev,
			 struct ieee80211_ampdu_params *params,
			 bool enable)
{
	struct mt792x_sta *msta = (struct mt792x_sta *)params->sta->drv_priv;

	if (enable && !params->amsdu)
		msta->wcid.amsdu = false;

	return mt76_connac_mcu_sta_ba(&dev->mt76, &msta->vif->mt76, params,
				      MCU_UNI_CMD(STA_REC_UPDATE),
				      enable, true);
}

int mt7921_mcu_uni_rx_ba(struct mt792x_dev *dev,
			 struct ieee80211_ampdu_params *params,
			 bool enable)
{
	struct mt792x_sta *msta = (struct mt792x_sta *)params->sta->drv_priv;

	return mt76_connac_mcu_sta_ba(&dev->mt76, &msta->vif->mt76, params,
				      MCU_UNI_CMD(STA_REC_UPDATE),
				      enable, false);
}

static int mt7921_load_clc(struct mt792x_dev *dev, const char *fw_name)
{
	const struct mt76_connac2_fw_trailer *hdr;
	const struct mt76_connac2_fw_region *region;
	const struct mt7921_clc *clc;
	struct mt76_dev *mdev = &dev->mt76;
	struct mt792x_phy *phy = &dev->phy;
	const struct firmware *fw;
	int ret, i, len, offset = 0;
#if defined(__linux__)
	u8 *clc_base = NULL, hw_encap = 0;
#elif defined(__FreeBSD__)
	const u8 *clc_base = NULL;
	u8 hw_encap = 0;
#endif

	if (mt7921_disable_clc ||
	    mt76_is_usb(&dev->mt76))
		return 0;

	if (mt76_is_mmio(&dev->mt76)) {
		ret = mt7921_mcu_read_eeprom(dev, MT_EE_HW_TYPE, &hw_encap);
		if (ret)
			return ret;
		hw_encap = u8_get_bits(hw_encap, MT_EE_HW_TYPE_ENCAP);
	}

	ret = request_firmware(&fw, fw_name, mdev->dev);
	if (ret)
		return ret;

	if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
		dev_err(mdev->dev, "Invalid firmware\n");
		ret = -EINVAL;
		goto out;
	}

	hdr = (const void *)(fw->data + fw->size - sizeof(*hdr));
	for (i = 0; i < hdr->n_region; i++) {
		region = (const void *)((const u8 *)hdr -
					(hdr->n_region - i) * sizeof(*region));
		len = le32_to_cpu(region->len);

		/* check if we have valid buffer size */
		if (offset + len > fw->size) {
			dev_err(mdev->dev, "Invalid firmware region\n");
			ret = -EINVAL;
			goto out;
		}

		if ((region->feature_set & FW_FEATURE_NON_DL) &&
		    region->type == FW_TYPE_CLC) {
#if defined(__linux__)
			clc_base = (u8 *)(fw->data + offset);
#elif defined(__FreeBSD__)
			clc_base = (const u8 *)(fw->data + offset);
#endif
			break;
		}
		offset += len;
	}

	if (!clc_base)
		goto out;

	for (offset = 0; offset < len; offset += le32_to_cpu(clc->len)) {
		clc = (const struct mt7921_clc *)(clc_base + offset);

		/* do not init buf again if chip reset triggered */
		if (phy->clc[clc->idx])
			continue;

		/* header content sanity */
		if (clc->idx == MT7921_CLC_POWER &&
		    u8_get_bits(clc->type, MT_EE_HW_TYPE_ENCAP) != hw_encap)
			continue;

		phy->clc[clc->idx] = devm_kmemdup(mdev->dev, clc,
						  le32_to_cpu(clc->len),
						  GFP_KERNEL);

		if (!phy->clc[clc->idx]) {
			ret = -ENOMEM;
			goto out;
		}
	}
	ret = mt7921_mcu_set_clc(dev, "00", ENVIRON_INDOOR);
out:
	release_firmware(fw);

	return ret;
}

int mt7921_mcu_fw_log_2_host(struct mt792x_dev *dev, u8 ctrl)
{
	struct {
		u8 ctrl_val;
		u8 pad[3];
	} data = {
		.ctrl_val = ctrl
	};

	return mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(FWLOG_2_HOST),
				 &data, sizeof(data), false);
}

int mt7921_run_firmware(struct mt792x_dev *dev)
{
	int err;

	err = mt792x_load_firmware(dev);
	if (err)
		return err;

	err = mt76_connac_mcu_get_nic_capability(&dev->mphy);
	if (err)
		return err;

	set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
	err = mt7921_load_clc(dev, mt792x_ram_name(dev));
	if (err)
		return err;

	return mt7921_mcu_fw_log_2_host(dev, 1);
}
EXPORT_SYMBOL_GPL(mt7921_run_firmware);

int mt7921_mcu_set_tx(struct mt792x_dev *dev, struct ieee80211_vif *vif)
{
	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
	struct edca {
		__le16 cw_min;
		__le16 cw_max;
		__le16 txop;
		__le16 aifs;
		u8 guardtime;
		u8 acm;
	} __packed;
	struct mt7921_mcu_tx {
		struct edca edca[IEEE80211_NUM_ACS];
		u8 bss_idx;
		u8 qos;
		u8 wmm_idx;
		u8 pad;
	} __packed req = {
		.bss_idx = mvif->mt76.idx,
		.qos = vif->bss_conf.qos,
		.wmm_idx = mvif->mt76.wmm_idx,
	};
	struct mu_edca {
		u8 cw_min;
		u8 cw_max;
		u8 aifsn;
		u8 acm;
		u8 timer;
		u8 padding[3];
	};
	struct mt7921_mcu_mu_tx {
		u8 ver;
		u8 pad0;
		__le16 len;
		u8 bss_idx;
		u8 qos;
		u8 wmm_idx;
		u8 pad1;
		struct mu_edca edca[IEEE80211_NUM_ACS];
		u8 pad3[32];
	} __packed req_mu = {
		.bss_idx = mvif->mt76.idx,
		.qos = vif->bss_conf.qos,
		.wmm_idx = mvif->mt76.wmm_idx,
	};
	static const int to_aci[] = { 1, 0, 2, 3 };
	int ac, ret;

	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
		struct ieee80211_tx_queue_params *q = &mvif->queue_params[ac];
		struct edca *e = &req.edca[to_aci[ac]];

		e->aifs = cpu_to_le16(q->aifs);
		e->txop = cpu_to_le16(q->txop);

		if (q->cw_min)
			e->cw_min = cpu_to_le16(q->cw_min);
		else
			e->cw_min = cpu_to_le16(5);

		if (q->cw_max)
			e->cw_max = cpu_to_le16(q->cw_max);
		else
			e->cw_max = cpu_to_le16(10);
	}

	ret = mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(SET_EDCA_PARMS), &req,
				sizeof(req), false);
	if (ret)
		return ret;

	if (!vif->bss_conf.he_support)
		return 0;

	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
		struct ieee80211_he_mu_edca_param_ac_rec *q;
		struct mu_edca *e;

		if (!mvif->queue_params[ac].mu_edca)
			break;

		q = &mvif->queue_params[ac].mu_edca_param_rec;
		e = &(req_mu.edca[to_aci[ac]]);

		e->cw_min = q->ecw_min_max & 0xf;
		e->cw_max = (q->ecw_min_max & 0xf0) >> 4;
		e->aifsn = q->aifsn;
		e->timer = q->mu_edca_timer;
	}

	return mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(SET_MU_EDCA_PARMS),
				 &req_mu, sizeof(req_mu), false);
}

int mt7921_mcu_set_roc(struct mt792x_phy *phy, struct mt792x_vif *vif,
		       struct ieee80211_channel *chan, int duration,
		       enum mt7921_roc_req type, u8 token_id)
{
	int center_ch = ieee80211_frequency_to_channel(chan->center_freq);
	struct mt792x_dev *dev = phy->dev;
	struct {
		struct {
			u8 rsv[4];
		} __packed hdr;
		struct roc_acquire_tlv {
			__le16 tag;
			__le16 len;
			u8 bss_idx;
			u8 tokenid;
			u8 control_channel;
			u8 sco;
			u8 band;
			u8 bw;
			u8 center_chan;
			u8 center_chan2;
			u8 bw_from_ap;
			u8 center_chan_from_ap;
			u8 center_chan2_from_ap;
			u8 reqtype;
			__le32 maxinterval;
			u8 dbdcband;
			u8 rsv[3];
		} __packed roc;
	} __packed req = {
		.roc = {
			.tag = cpu_to_le16(UNI_ROC_ACQUIRE),
			.len = cpu_to_le16(sizeof(struct roc_acquire_tlv)),
			.tokenid = token_id,
			.reqtype = type,
			.maxinterval = cpu_to_le32(duration),
			.bss_idx = vif->mt76.idx,
			.control_channel = chan->hw_value,
			.bw = CMD_CBW_20MHZ,
			.bw_from_ap = CMD_CBW_20MHZ,
			.center_chan = center_ch,
			.center_chan_from_ap = center_ch,
			.dbdcband = 0xff, /* auto */
		},
	};

	if (chan->hw_value < center_ch)
		req.roc.sco = 1; /* SCA */
	else if (chan->hw_value > center_ch)
		req.roc.sco = 3; /* SCB */

	switch (chan->band) {
	case NL80211_BAND_6GHZ:
		req.roc.band = 3;
		break;
	case NL80211_BAND_5GHZ:
		req.roc.band = 2;
		break;
	default:
		req.roc.band = 1;
		break;
	}

	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(ROC),
				 &req, sizeof(req), false);
}

int mt7921_mcu_abort_roc(struct mt792x_phy *phy, struct mt792x_vif *vif,
			 u8 token_id)
{
	struct mt792x_dev *dev = phy->dev;
	struct {
		struct {
			u8 rsv[4];
		} __packed hdr;
		struct roc_abort_tlv {
			__le16 tag;
			__le16 len;
			u8 bss_idx;
			u8 tokenid;
			u8 dbdcband;
			u8 rsv[5];
		} __packed abort;
	} __packed req = {
		.abort = {
			.tag = cpu_to_le16(UNI_ROC_ABORT),
			.len = cpu_to_le16(sizeof(struct roc_abort_tlv)),
			.tokenid = token_id,
			.bss_idx = vif->mt76.idx,
			.dbdcband = 0xff, /* auto*/
		},
	};

	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(ROC),
				 &req, sizeof(req), false);
}

int mt7921_mcu_set_chan_info(struct mt792x_phy *phy, int cmd)
{
	struct mt792x_dev *dev = phy->dev;
	struct cfg80211_chan_def *chandef = &phy->mt76->chandef;
	int freq1 = chandef->center_freq1;
	struct {
		u8 control_ch;
		u8 center_ch;
		u8 bw;
		u8 tx_streams_num;
		u8 rx_streams;	/* mask or num */
		u8 switch_reason;
		u8 band_idx;
		u8 center_ch2;	/* for 80+80 only */
		__le16 cac_case;
		u8 channel_band;
		u8 rsv0;
		__le32 outband_freq;
		u8 txpower_drop;
		u8 ap_bw;
		u8 ap_center_ch;
		u8 rsv1[57];
	} __packed req = {
		.control_ch = chandef->chan->hw_value,
		.center_ch = ieee80211_frequency_to_channel(freq1),
		.bw = mt76_connac_chan_bw(chandef),
		.tx_streams_num = hweight8(phy->mt76->antenna_mask),
		.rx_streams = phy->mt76->antenna_mask,
		.band_idx = phy != &dev->phy,
	};

	if (chandef->chan->band == NL80211_BAND_6GHZ)
		req.channel_band = 2;
	else
		req.channel_band = chandef->chan->band;

	if (cmd == MCU_EXT_CMD(SET_RX_PATH) ||
	    dev->mt76.hw->conf.flags & IEEE80211_CONF_MONITOR)
		req.switch_reason = CH_SWITCH_NORMAL;
	else if (dev->mt76.hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
		req.switch_reason = CH_SWITCH_SCAN_BYPASS_DPD;
	else if (!cfg80211_reg_can_beacon(dev->mt76.hw->wiphy, chandef,
					  NL80211_IFTYPE_AP))
		req.switch_reason = CH_SWITCH_DFS;
	else
		req.switch_reason = CH_SWITCH_NORMAL;

	if (cmd == MCU_EXT_CMD(CHANNEL_SWITCH))
		req.rx_streams = hweight8(req.rx_streams);

	if (chandef->width == NL80211_CHAN_WIDTH_80P80) {
		int freq2 = chandef->center_freq2;

		req.center_ch2 = ieee80211_frequency_to_channel(freq2);
	}

	return mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), true);
}

int mt7921_mcu_set_eeprom(struct mt792x_dev *dev)
{
	struct req_hdr {
		u8 buffer_mode;
		u8 format;
		__le16 len;
	} __packed req = {
		.buffer_mode = EE_MODE_EFUSE,
		.format = EE_FORMAT_WHOLE,
	};

	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(EFUSE_BUFFER_MODE),
				 &req, sizeof(req), true);
}
EXPORT_SYMBOL_GPL(mt7921_mcu_set_eeprom);

int mt7921_mcu_uni_bss_ps(struct mt792x_dev *dev, struct ieee80211_vif *vif)
{
	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
	struct {
		struct {
			u8 bss_idx;
			u8 pad[3];
		} __packed hdr;
		struct ps_tlv {
			__le16 tag;
			__le16 len;
			u8 ps_state; /* 0: device awake
				      * 1: static power save
				      * 2: dynamic power saving
				      * 3: enter TWT power saving
				      * 4: leave TWT power saving
				      */
			u8 pad[3];
		} __packed ps;
	} __packed ps_req = {
		.hdr = {
			.bss_idx = mvif->mt76.idx,
		},
		.ps = {
			.tag = cpu_to_le16(UNI_BSS_INFO_PS),
			.len = cpu_to_le16(sizeof(struct ps_tlv)),
			.ps_state = vif->cfg.ps ? 2 : 0,
		},
	};

	if (vif->type != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(BSS_INFO_UPDATE),
				 &ps_req, sizeof(ps_req), true);
}

static int
mt7921_mcu_uni_bss_bcnft(struct mt792x_dev *dev, struct ieee80211_vif *vif,
			 bool enable)
{
	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
	struct {
		struct {
			u8 bss_idx;
			u8 pad[3];
		} __packed hdr;
		struct bcnft_tlv {
			__le16 tag;
			__le16 len;
			__le16 bcn_interval;
			u8 dtim_period;
			u8 pad;
		} __packed bcnft;
	} __packed bcnft_req = {
		.hdr = {
			.bss_idx = mvif->mt76.idx,
		},
		.bcnft = {
			.tag = cpu_to_le16(UNI_BSS_INFO_BCNFT),
			.len = cpu_to_le16(sizeof(struct bcnft_tlv)),
			.bcn_interval = cpu_to_le16(vif->bss_conf.beacon_int),
			.dtim_period = vif->bss_conf.dtim_period,
		},
	};

	if (vif->type != NL80211_IFTYPE_STATION)
		return 0;

	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(BSS_INFO_UPDATE),
				 &bcnft_req, sizeof(bcnft_req), true);
}

int
mt7921_mcu_set_bss_pm(struct mt792x_dev *dev, struct ieee80211_vif *vif,
		      bool enable)
{
	struct mt792x_vif *mvif = (struct mt792x_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->mt76.idx,
		.aid = cpu_to_le16(vif->cfg.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->mt76.idx,
	};
	int err;

	err = mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(SET_BSS_ABORT),
				&req_hdr, sizeof(req_hdr), false);
	if (err < 0 || !enable)
		return err;

	return mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(SET_BSS_CONNECTED),
				 &req, sizeof(req), false);
}

int mt7921_mcu_sta_update(struct mt792x_dev *dev, struct ieee80211_sta *sta,
			  struct ieee80211_vif *vif, bool enable,
			  enum mt76_sta_info_state state)
{
	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
	int rssi = -ewma_rssi_read(&mvif->rssi);
	struct mt76_sta_cmd_info info = {
		.sta = sta,
		.vif = vif,
		.enable = enable,
		.cmd = MCU_UNI_CMD(STA_REC_UPDATE),
		.state = state,
		.offload_fw = true,
		.rcpi = to_rcpi(rssi),
	};
	struct mt792x_sta *msta;

	msta = sta ? (struct mt792x_sta *)sta->drv_priv : NULL;
	info.wcid = msta ? &msta->wcid : &mvif->sta.wcid;
	info.newly = msta ? state != MT76_STA_INFO_STATE_ASSOC : true;

	return mt76_connac_mcu_sta_cmd(&dev->mphy, &info);
}

int mt7921_mcu_set_beacon_filter(struct mt792x_dev *dev,
				 struct ieee80211_vif *vif,
				 bool enable)
{
#define MT7921_FIF_BIT_CLR		BIT(1)
#define MT7921_FIF_BIT_SET		BIT(0)
	int err;

	if (enable) {
		err = mt7921_mcu_uni_bss_bcnft(dev, vif, true);
		if (err)
			return err;

		err = mt7921_mcu_set_rxfilter(dev, 0,
					      MT7921_FIF_BIT_SET,
					      MT_WF_RFCR_DROP_OTHER_BEACON);
		if (err)
			return err;

		return 0;
	}

	err = mt7921_mcu_set_bss_pm(dev, vif, false);
	if (err)
		return err;

	err = mt7921_mcu_set_rxfilter(dev, 0,
				      MT7921_FIF_BIT_CLR,
				      MT_WF_RFCR_DROP_OTHER_BEACON);
	if (err)
		return err;

	return 0;
}

int mt7921_get_txpwr_info(struct mt792x_dev *dev, struct mt7921_txpwr *txpwr)
{
	struct mt7921_txpwr_event *event;
	struct mt7921_txpwr_req req = {
		.dbdc_idx = 0,
	};
	struct sk_buff *skb;
	int ret;

	ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_CE_CMD(GET_TXPWR),
					&req, sizeof(req), true, &skb);
	if (ret)
		return ret;

	event = (struct mt7921_txpwr_event *)skb->data;
	WARN_ON(skb->len != le16_to_cpu(event->len));
	memcpy(txpwr, &event->txpwr, sizeof(event->txpwr));

	dev_kfree_skb(skb);

	return 0;
}

int mt7921_mcu_set_sniffer(struct mt792x_dev *dev, struct ieee80211_vif *vif,
			   bool enable)
{
	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
	struct {
		struct {
			u8 band_idx;
			u8 pad[3];
		} __packed hdr;
		struct sniffer_enable_tlv {
			__le16 tag;
			__le16 len;
			u8 enable;
			u8 pad[3];
		} __packed enable;
	} req = {
		.hdr = {
			.band_idx = mvif->band_idx,
		},
		.enable = {
			.tag = cpu_to_le16(0),
			.len = cpu_to_le16(sizeof(struct sniffer_enable_tlv)),
			.enable = enable,
		},
	};

	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(SNIFFER), &req, sizeof(req),
				 true);
}

int mt7921_mcu_config_sniffer(struct mt792x_vif *vif,
			      struct ieee80211_chanctx_conf *ctx)
{
	struct cfg80211_chan_def *chandef = &ctx->def;
	int freq1 = chandef->center_freq1, freq2 = chandef->center_freq2;
	const u8 ch_band[] = {
		[NL80211_BAND_2GHZ] = 1,
		[NL80211_BAND_5GHZ] = 2,
		[NL80211_BAND_6GHZ] = 3,
	};
	const u8 ch_width[] = {
		[NL80211_CHAN_WIDTH_20_NOHT] = 0,
		[NL80211_CHAN_WIDTH_20] = 0,
		[NL80211_CHAN_WIDTH_40] = 0,
		[NL80211_CHAN_WIDTH_80] = 1,
		[NL80211_CHAN_WIDTH_160] = 2,
		[NL80211_CHAN_WIDTH_80P80] = 3,
		[NL80211_CHAN_WIDTH_5] = 4,
		[NL80211_CHAN_WIDTH_10] = 5,
		[NL80211_CHAN_WIDTH_320] = 6,
	};
	struct {
		struct {
			u8 band_idx;
			u8 pad[3];
		} __packed hdr;
		struct config_tlv {
			__le16 tag;
			__le16 len;
			u16 aid;
			u8 ch_band;
			u8 bw;
			u8 control_ch;
			u8 sco;
			u8 center_ch;
			u8 center_ch2;
			u8 drop_err;
			u8 pad[3];
		} __packed tlv;
	} __packed req = {
		.hdr = {
			.band_idx = vif->mt76.band_idx,
		},
		.tlv = {
			.tag = cpu_to_le16(1),
			.len = cpu_to_le16(sizeof(req.tlv)),
			.control_ch = chandef->chan->hw_value,
			.center_ch = ieee80211_frequency_to_channel(freq1),
			.drop_err = 1,
		},
	};
	if (chandef->chan->band < ARRAY_SIZE(ch_band))
		req.tlv.ch_band = ch_band[chandef->chan->band];
	if (chandef->width < ARRAY_SIZE(ch_width))
		req.tlv.bw = ch_width[chandef->width];

	if (freq2)
		req.tlv.center_ch2 = ieee80211_frequency_to_channel(freq2);

	if (req.tlv.control_ch < req.tlv.center_ch)
		req.tlv.sco = 1; /* SCA */
	else if (req.tlv.control_ch > req.tlv.center_ch)
		req.tlv.sco = 3; /* SCB */

	return mt76_mcu_send_msg(vif->phy->mt76->dev, MCU_UNI_CMD(SNIFFER),
				 &req, sizeof(req), true);
}

int
mt7921_mcu_uni_add_beacon_offload(struct mt792x_dev *dev,
				  struct ieee80211_hw *hw,
				  struct ieee80211_vif *vif,
				  bool enable)
{
	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
	struct mt76_wcid *wcid = &dev->mt76.global_wcid;
	struct ieee80211_mutable_offsets offs;
	struct {
		struct req_hdr {
			u8 bss_idx;
			u8 pad[3];
		} __packed hdr;
		struct bcn_content_tlv {
			__le16 tag;
			__le16 len;
			__le16 tim_ie_pos;
			__le16 csa_ie_pos;
			__le16 bcc_ie_pos;
			/* 0: disable beacon offload
			 * 1: enable beacon offload
			 * 2: update probe respond offload
			 */
			u8 enable;
			/* 0: legacy format (TXD + payload)
			 * 1: only cap field IE
			 */
			u8 type;
			__le16 pkt_len;
			u8 pkt[512];
		} __packed beacon_tlv;
	} req = {
		.hdr = {
			.bss_idx = mvif->mt76.idx,
		},
		.beacon_tlv = {
			.tag = cpu_to_le16(UNI_BSS_INFO_BCN_CONTENT),
			.len = cpu_to_le16(sizeof(struct bcn_content_tlv)),
			.enable = enable,
		},
	};
	struct sk_buff *skb;

	/* support enable/update process only
	 * disable flow would be handled in bss stop handler automatically
	 */
	if (!enable)
		return -EOPNOTSUPP;

	skb = ieee80211_beacon_get_template(mt76_hw(dev), vif, &offs, 0);
	if (!skb)
		return -EINVAL;

	if (skb->len > 512 - MT_TXD_SIZE) {
		dev_err(dev->mt76.dev, "beacon size limit exceed\n");
		dev_kfree_skb(skb);
		return -EINVAL;
	}

	mt76_connac2_mac_write_txwi(&dev->mt76, (__le32 *)(req.beacon_tlv.pkt),
				    skb, wcid, NULL, 0, 0, BSS_CHANGED_BEACON);
	memcpy(req.beacon_tlv.pkt + MT_TXD_SIZE, skb->data, skb->len);
	req.beacon_tlv.pkt_len = cpu_to_le16(MT_TXD_SIZE + skb->len);
	req.beacon_tlv.tim_ie_pos = cpu_to_le16(MT_TXD_SIZE + offs.tim_offset);

	if (offs.cntdwn_counter_offs[0]) {
		u16 csa_offs;

		csa_offs = MT_TXD_SIZE + offs.cntdwn_counter_offs[0] - 4;
		req.beacon_tlv.csa_ie_pos = cpu_to_le16(csa_offs);
	}
	dev_kfree_skb(skb);

	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(BSS_INFO_UPDATE),
				 &req, sizeof(req), true);
}

static
int __mt7921_mcu_set_clc(struct mt792x_dev *dev, u8 *alpha2,
			 enum environment_cap env_cap,
			 struct mt7921_clc *clc,
			 u8 idx)
{
	struct sk_buff *skb;
	struct {
		u8 ver;
		u8 pad0;
		__le16 len;
		u8 idx;
		u8 env;
		u8 acpi_conf;
		u8 pad1;
		u8 alpha2[2];
		u8 type[2];
		u8 rsvd[64];
	} __packed req = {
		.idx = idx,
		.env = env_cap,
		.acpi_conf = mt792x_acpi_get_flags(&dev->phy),
	};
	int ret, valid_cnt = 0;
	u8 i, *pos;

	if (!clc)
		return 0;

	pos = clc->data;
	for (i = 0; i < clc->nr_country; i++) {
		struct mt7921_clc_rule *rule = (struct mt7921_clc_rule *)pos;
		u16 len = le16_to_cpu(rule->len);

		pos += len + sizeof(*rule);
		if (rule->alpha2[0] != alpha2[0] ||
		    rule->alpha2[1] != alpha2[1])
			continue;

		memcpy(req.alpha2, rule->alpha2, 2);
		memcpy(req.type, rule->type, 2);

		req.len = cpu_to_le16(sizeof(req) + len);
		skb = __mt76_mcu_msg_alloc(&dev->mt76, &req,
					   le16_to_cpu(req.len),
					   sizeof(req), GFP_KERNEL);
		if (!skb)
			return -ENOMEM;
		skb_put_data(skb, rule->data, len);

		ret = mt76_mcu_skb_send_msg(&dev->mt76, skb,
					    MCU_CE_CMD(SET_CLC), false);
		if (ret < 0)
			return ret;
		valid_cnt++;
	}

	if (!valid_cnt)
		return -ENOENT;

	return 0;
}

int mt7921_mcu_set_clc(struct mt792x_dev *dev, u8 *alpha2,
		       enum environment_cap env_cap)
{
	struct mt792x_phy *phy = (struct mt792x_phy *)&dev->phy;
	int i, ret;

	/* submit all clc config */
	for (i = 0; i < ARRAY_SIZE(phy->clc); i++) {
		ret = __mt7921_mcu_set_clc(dev, alpha2, env_cap,
					   phy->clc[i], i);

		/* If no country found, set "00" as default */
		if (ret == -ENOENT)
			ret = __mt7921_mcu_set_clc(dev, "00",
						   ENVIRON_INDOOR,
						   phy->clc[i], i);
		if (ret < 0)
			return ret;
	}
	return 0;
}

int mt7921_mcu_get_temperature(struct mt792x_phy *phy)
{
	struct mt792x_dev *dev = phy->dev;
	struct {
		u8 ctrl_id;
		u8 action;
		u8 band_idx;
		u8 rsv[5];
	} req = {
		.ctrl_id = THERMAL_SENSOR_TEMP_QUERY,
		.band_idx = phy->mt76->band_idx,
	};

	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(THERMAL_CTRL), &req,
				 sizeof(req), true);
}

int mt7921_mcu_set_rxfilter(struct mt792x_dev *dev, u32 fif,
			    u8 bit_op, u32 bit_map)
{
	struct {
		u8 rsv[4];
		u8 mode;
		u8 rsv2[3];
		__le32 fif;
		__le32 bit_map; /* bit_* for bitmap update */
		u8 bit_op;
		u8 pad[51];
	} __packed data = {
		.mode = fif ? 1 : 2,
		.fif = cpu_to_le32(fif),
		.bit_map = cpu_to_le32(bit_map),
		.bit_op = bit_op,
	};

	return mt76_mcu_send_msg(&dev->mt76, MCU_CE_CMD(SET_RX_FILTER),
				 &data, sizeof(data), false);
}