mt76/mt7915/init.c

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

#include <linux/etherdevice.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/thermal.h>
#include "mt7915.h"
#include "mac.h"
#include "mcu.h"
#include "eeprom.h"

#define CCK_RATE(_idx, _rate) {						\
	.bitrate = _rate,						\
	.flags = IEEE80211_RATE_SHORT_PREAMBLE,				\
	.hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx),			\
	.hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + (_idx)),	\
}

#define OFDM_RATE(_idx, _rate) {					\
	.bitrate = _rate,						\
	.hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx),			\
	.hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx),		\
}

static struct ieee80211_rate mt7915_rates[] = {
	CCK_RATE(0, 10),
	CCK_RATE(1, 20),
	CCK_RATE(2, 55),
	CCK_RATE(3, 110),
	OFDM_RATE(11, 60),
	OFDM_RATE(15, 90),
	OFDM_RATE(10, 120),
	OFDM_RATE(14, 180),
	OFDM_RATE(9,  240),
	OFDM_RATE(13, 360),
	OFDM_RATE(8,  480),
	OFDM_RATE(12, 540),
};

static const struct ieee80211_iface_limit if_limits[] = {
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_ADHOC)
	}, {
		.max = 16,
		.types = BIT(NL80211_IFTYPE_AP)
#ifdef CONFIG_MAC80211_MESH
			 | BIT(NL80211_IFTYPE_MESH_POINT)
#endif
	}, {
		.max = MT7915_MAX_INTERFACES,
		.types = BIT(NL80211_IFTYPE_STATION)
	}
};

static const struct ieee80211_iface_combination if_comb[] = {
	{
		.limits = if_limits,
		.n_limits = ARRAY_SIZE(if_limits),
		.max_interfaces = MT7915_MAX_INTERFACES,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
		.radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
				       BIT(NL80211_CHAN_WIDTH_20) |
				       BIT(NL80211_CHAN_WIDTH_40) |
				       BIT(NL80211_CHAN_WIDTH_80) |
				       BIT(NL80211_CHAN_WIDTH_160) |
				       BIT(NL80211_CHAN_WIDTH_80P80),
	}
};

static ssize_t mt7915_thermal_show_temp(struct device *dev,
					struct device_attribute *attr,
					char *buf)
{
	struct mt7915_phy *phy = dev_get_drvdata(dev);
	int temperature;

	temperature = mt7915_mcu_get_temperature(phy);
	if (temperature < 0)
		return temperature;

	/* display in millidegree celcius */
	return sprintf(buf, "%u\n", temperature * 1000);
}

static SENSOR_DEVICE_ATTR(temp1_input, 0444, mt7915_thermal_show_temp,
			  NULL, 0);

static struct attribute *mt7915_hwmon_attrs[] = {
	&sensor_dev_attr_temp1_input.dev_attr.attr,
	NULL,
};
ATTRIBUTE_GROUPS(mt7915_hwmon);

static int
mt7915_thermal_get_max_throttle_state(struct thermal_cooling_device *cdev,
				      unsigned long *state)
{
	*state = MT7915_THERMAL_THROTTLE_MAX;

	return 0;
}

static int
mt7915_thermal_get_cur_throttle_state(struct thermal_cooling_device *cdev,
				      unsigned long *state)
{
	struct mt7915_phy *phy = cdev->devdata;

	*state = phy->throttle_state;

	return 0;
}

static int
mt7915_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev,
				      unsigned long state)
{
	struct mt7915_phy *phy = cdev->devdata;
	int ret;

	if (state > MT7915_THERMAL_THROTTLE_MAX)
		return -EINVAL;

	if (state == phy->throttle_state)
		return 0;

	ret = mt7915_mcu_set_thermal_throttling(phy, state);
	if (ret)
		return ret;

	phy->throttle_state = state;

	return 0;
}

static const struct thermal_cooling_device_ops mt7915_thermal_ops = {
	.get_max_state = mt7915_thermal_get_max_throttle_state,
	.get_cur_state = mt7915_thermal_get_cur_throttle_state,
	.set_cur_state = mt7915_thermal_set_cur_throttle_state,
};

static void mt7915_unregister_thermal(struct mt7915_phy *phy)
{
	struct wiphy *wiphy = phy->mt76->hw->wiphy;

	sysfs_remove_link(&wiphy->dev.kobj, "cooling_device");
	thermal_cooling_device_unregister(phy->cdev);
}

static int mt7915_thermal_init(struct mt7915_phy *phy)
{
	struct wiphy *wiphy = phy->mt76->hw->wiphy;
	struct thermal_cooling_device *cdev;
	struct device *hwmon;
	int ret = 0;

	cdev = thermal_cooling_device_register(wiphy_name(wiphy), phy,
					       &mt7915_thermal_ops);
	if (IS_ERR(cdev))
		return PTR_ERR(cdev);

	ret = sysfs_create_link(&wiphy->dev.kobj, &cdev->device.kobj,
				"cooling_device");
	if (ret)
		goto err;

	phy->cdev = cdev;

	if (!IS_REACHABLE(CONFIG_HWMON))
		return 0;

	hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev,
						       wiphy_name(wiphy), phy,
						       mt7915_hwmon_groups);
	if (IS_ERR(hwmon)) {
		ret = PTR_ERR(hwmon);
		goto err;
	}

	return 0;

err:
	mt7915_unregister_thermal(phy);
	return ret;
}

static void
mt7915_init_txpower(struct mt7915_dev *dev,
		    struct ieee80211_supported_band *sband)
{
	int i, n_chains = hweight8(dev->mphy.antenna_mask);
	int nss_delta = mt76_tx_power_nss_delta(n_chains);
	int pwr_delta = mt7915_eeprom_get_power_delta(dev, sband->band);
	struct mt76_power_limits limits;

	for (i = 0; i < sband->n_channels; i++) {
		struct ieee80211_channel *chan = &sband->channels[i];
		u32 target_power = 0;
		int j;

		for (j = 0; j < n_chains; j++) {
			u32 val;

			val = mt7915_eeprom_get_target_power(dev, chan, j);
			target_power = max(target_power, val);
		}

		target_power += pwr_delta;
		target_power = mt76_get_rate_power_limits(&dev->mphy, chan,
							  &limits,
							  target_power);
		target_power += nss_delta;
		target_power = DIV_ROUND_UP(target_power, 2);
		chan->max_power = min_t(int, chan->max_reg_power,
					target_power);
		chan->orig_mpwr = target_power;
	}
}

static void
mt7915_regd_notifier(struct wiphy *wiphy,
		     struct regulatory_request *request)
{
	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
	struct mt7915_dev *dev = mt7915_hw_dev(hw);
	struct mt76_phy *mphy = hw->priv;
	struct mt7915_phy *phy = mphy->priv;
	struct cfg80211_chan_def *chandef = &mphy->chandef;

	memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
	dev->mt76.region = request->dfs_region;

	mt7915_init_txpower(dev, &mphy->sband_2g.sband);
	mt7915_init_txpower(dev, &mphy->sband_5g.sband);

	if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR))
		return;

	mt7915_dfs_init_radar_detector(phy);
}

static void
mt7915_init_wiphy(struct ieee80211_hw *hw)
{
	struct mt7915_phy *phy = mt7915_hw_phy(hw);
	struct wiphy *wiphy = hw->wiphy;

	hw->queues = 4;
	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
	hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
	hw->netdev_features = NETIF_F_RXCSUM;

	hw->radiotap_timestamp.units_pos =
		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;

	phy->slottime = 9;

	hw->sta_data_size = sizeof(struct mt7915_sta);
	hw->vif_data_size = sizeof(struct mt7915_vif);

	wiphy->iface_combinations = if_comb;
	wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
	wiphy->reg_notifier = mt7915_regd_notifier;
	wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;

	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);

	ieee80211_hw_set(hw, HAS_RATE_CONTROL);
	ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
	ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
	ieee80211_hw_set(hw, WANT_MONITOR_VIF);

	hw->max_tx_fragments = 4;

	if (!phy->dev->dbdc_support)
		wiphy->txq_memory_limit = 32 << 20; /* 32 MiB */

	if (phy->mt76->cap.has_2ghz)
		phy->mt76->sband_2g.sband.ht_cap.cap |=
			IEEE80211_HT_CAP_LDPC_CODING |
			IEEE80211_HT_CAP_MAX_AMSDU;

	if (phy->mt76->cap.has_5ghz) {
		phy->mt76->sband_5g.sband.ht_cap.cap |=
			IEEE80211_HT_CAP_LDPC_CODING |
			IEEE80211_HT_CAP_MAX_AMSDU;
		phy->mt76->sband_5g.sband.vht_cap.cap |=
			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
	}

	mt76_set_stream_caps(phy->mt76, true);
	mt7915_set_stream_vht_txbf_caps(phy);
	mt7915_set_stream_he_caps(phy);
}

static void
mt7915_mac_init_band(struct mt7915_dev *dev, u8 band)
{
	u32 mask, set;

	mt76_rmw_field(dev, MT_TMAC_CTCR0(band),
		       MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
	mt76_set(dev, MT_TMAC_CTCR0(band),
		 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
		 MT_TMAC_CTCR0_INS_DDLMT_EN);

	mask = MT_MDP_RCFR0_MCU_RX_MGMT |
	       MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR |
	       MT_MDP_RCFR0_MCU_RX_CTL_BAR;
	set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF);
	mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set);

	mask = MT_MDP_RCFR1_MCU_RX_BYPASS |
	       MT_MDP_RCFR1_RX_DROPPED_UCAST |
	       MT_MDP_RCFR1_RX_DROPPED_MCAST;
	set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) |
	      FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF);
	mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);

	mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
	mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);

	mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536);
	/* disable rx rate report by default due to hw issues */
	mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
}

static void mt7915_mac_init(struct mt7915_dev *dev)
{
	int i;

	mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
	/* enable hardware de-agg */
	mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);

	for (i = 0; i < MT7915_WTBL_SIZE; i++)
		mt7915_mac_wtbl_update(dev, i,
				       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
	for (i = 0; i < 2; i++)
		mt7915_mac_init_band(dev, i);
}

static int mt7915_txbf_init(struct mt7915_dev *dev)
{
	int ret;


	if (dev->dbdc_support) {
		ret = mt7915_mcu_set_txbf_module(dev);
		if (ret)
			return ret;
	}

	/* trigger sounding packets */
	ret = mt7915_mcu_set_txbf_sounding(dev);
	if (ret)
		return ret;

	/* enable eBF */
	return mt7915_mcu_set_txbf_type(dev);
}

static int mt7915_register_ext_phy(struct mt7915_dev *dev)
{
	struct mt7915_phy *phy = mt7915_ext_phy(dev);
	struct mt76_phy *mphy;
	int ret;

	if (!dev->dbdc_support)
		return 0;

	if (phy)
		return 0;

	mphy = mt76_alloc_phy(&dev->mt76, sizeof(*phy), &mt7915_ops);
	if (!mphy)
		return -ENOMEM;

	phy = mphy->priv;
	phy->dev = dev;
	phy->mt76 = mphy;
	mphy->chainmask = dev->chainmask & ~dev->mphy.chainmask;
	mphy->antenna_mask = BIT(hweight8(mphy->chainmask)) - 1;

	INIT_LIST_HEAD(&phy->stats_list);
	INIT_DELAYED_WORK(&mphy->mac_work, mt7915_mac_work);

	mt7915_eeprom_parse_band_config(phy);
	mt7915_init_wiphy(mphy->hw);

	memcpy(mphy->macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR2,
	       ETH_ALEN);
	mt76_eeprom_override(mphy);

	ret = mt7915_init_tx_queues(phy, MT7915_TXQ_BAND1,
				    MT7915_TX_RING_SIZE);
	if (ret)
		goto error;

	ret = mt76_register_phy(mphy, true, mt7915_rates,
				ARRAY_SIZE(mt7915_rates));
	if (ret)
		goto error;

	ret = mt7915_thermal_init(phy);
	if (ret)
		goto error;

	return 0;

error:
	ieee80211_free_hw(mphy->hw);
	return ret;
}

static void mt7915_init_work(struct work_struct *work)
{
	struct mt7915_dev *dev = container_of(work, struct mt7915_dev,
				 init_work);

	mt7915_mcu_set_eeprom(dev);
	mt7915_mac_init(dev);
	mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband);
	mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband);
	mt7915_txbf_init(dev);
}

static void mt7915_wfsys_reset(struct mt7915_dev *dev)
{
	u32 val = MT_TOP_PWR_KEY | MT_TOP_PWR_SW_PWR_ON | MT_TOP_PWR_PWR_ON;

#define MT_MCU_DUMMY_RANDOM	GENMASK(15, 0)
#define MT_MCU_DUMMY_DEFAULT	GENMASK(31, 16)

	mt76_wr(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_RANDOM);

	/* change to software control */
	val |= MT_TOP_PWR_SW_RST;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* reset wfsys */
	val &= ~MT_TOP_PWR_SW_RST;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* release wfsys then mcu re-excutes romcode */
	val |= MT_TOP_PWR_SW_RST;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* switch to hw control */
	val &= ~MT_TOP_PWR_SW_RST;
	val |= MT_TOP_PWR_HW_CTRL;
	mt76_wr(dev, MT_TOP_PWR_CTRL, val);

	/* check whether mcu resets to default */
	if (!mt76_poll_msec(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_DEFAULT,
			    MT_MCU_DUMMY_DEFAULT, 1000)) {
		dev_err(dev->mt76.dev, "wifi subsystem reset failure\n");
		return;
	}

	/* wfsys reset won't clear host registers */
	mt76_clear(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE);

	msleep(100);
}

static int mt7915_init_hardware(struct mt7915_dev *dev)
{
	int ret, idx;

	mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);

	INIT_WORK(&dev->init_work, mt7915_init_work);
	dev->dbdc_support = !!(mt76_rr(dev, MT_HW_BOUND) & BIT(5));

	/* If MCU was already running, it is likely in a bad state */
	if (mt76_get_field(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE) >
	    FW_STATE_FW_DOWNLOAD)
		mt7915_wfsys_reset(dev);

	ret = mt7915_dma_init(dev);
	if (ret)
		return ret;

	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);

	/*
	 * force firmware operation mode into normal state,
	 * which should be set before firmware download stage.
	 */
	mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);

	ret = mt7915_mcu_init(dev);
	if (ret) {
		/* Reset and try again */
		mt7915_wfsys_reset(dev);

		ret = mt7915_mcu_init(dev);
		if (ret)
			return ret;
	}

	ret = mt7915_eeprom_init(dev);
	if (ret < 0)
		return ret;


	if (dev->flash_mode) {
		ret = mt7915_mcu_apply_group_cal(dev);
		if (ret)
			return ret;
	}

	/* Beacon and mgmt frames should occupy wcid 0 */
	idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA - 1);
	if (idx)
		return -ENOSPC;

	dev->mt76.global_wcid.idx = idx;
	dev->mt76.global_wcid.hw_key_idx = -1;
	dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET;
	rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);

	return 0;
}

void mt7915_set_stream_vht_txbf_caps(struct mt7915_phy *phy)
{
	int nss;
	u32 *cap;

	if (!phy->mt76->cap.has_5ghz)
		return;

	nss = hweight8(phy->mt76->chainmask);
	cap = &phy->mt76->sband_5g.sband.vht_cap.cap;

	*cap |= IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
		IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
		(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);

	*cap &= ~(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK |
		  IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
		  IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);

	if (nss < 2)
		return;

	*cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
		IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE |
		FIELD_PREP(IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK,
			   nss - 1);
}

static void
mt7915_set_stream_he_txbf_caps(struct ieee80211_sta_he_cap *he_cap,
			       int vif, int nss)
{
	struct ieee80211_he_cap_elem *elem = &he_cap->he_cap_elem;
	struct ieee80211_he_mcs_nss_supp *mcs = &he_cap->he_mcs_nss_supp;
	u8 c;

#ifdef CONFIG_MAC80211_MESH
	if (vif == NL80211_IFTYPE_MESH_POINT)
		return;
#endif

	elem->phy_cap_info[3] &= ~IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
	elem->phy_cap_info[4] &= ~IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;

	c = IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_MASK |
	    IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_MASK;
	elem->phy_cap_info[5] &= ~c;

	c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB |
	    IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB;
	elem->phy_cap_info[6] &= ~c;

	elem->phy_cap_info[7] &= ~IEEE80211_HE_PHY_CAP7_MAX_NC_MASK;

	c = IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
	    IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
	    IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
	elem->phy_cap_info[2] |= c;

	c = IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
	    IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4 |
	    IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_4;
	elem->phy_cap_info[4] |= c;

	/* do not support NG16 due to spec D4.0 changes subcarrier idx */
	c = IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
	    IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU;

	if (vif == NL80211_IFTYPE_STATION)
		c |= IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO;

	elem->phy_cap_info[6] |= c;

	if (nss < 2)
		return;

	if (vif != NL80211_IFTYPE_AP)
		return;

	elem->phy_cap_info[3] |= IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
	elem->phy_cap_info[4] |= IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;

	/* num_snd_dim */
	c = (nss - 1) | (max_t(int, le16_to_cpu(mcs->tx_mcs_160), 1) << 3);
	elem->phy_cap_info[5] |= c;

	c = IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB |
	    IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB;
	elem->phy_cap_info[6] |= c;

	/* the maximum cap is 4 x 3, (Nr, Nc) = (3, 2) */
	elem->phy_cap_info[7] |= min_t(int, nss - 1, 2) << 3;
}

static void
mt7915_gen_ppe_thresh(u8 *he_ppet, int nss)
{
	u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
	u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};

	he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
		     FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
				ru_bit_mask);

	ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
		    nss * hweight8(ru_bit_mask) * 2;
	ppet_size = DIV_ROUND_UP(ppet_bits, 8);

	for (i = 0; i < ppet_size - 1; i++)
		he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];

	he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
			 (0xff >> (8 - (ppet_bits - 1) % 8));
}

static int
mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
		    struct ieee80211_sband_iftype_data *data)
{
	int i, idx = 0, nss = hweight8(phy->mt76->chainmask);
	u16 mcs_map = 0;

	for (i = 0; i < 8; i++) {
		if (i < nss)
			mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
		else
			mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
	}

	for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
		struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
		struct ieee80211_he_cap_elem *he_cap_elem =
				&he_cap->he_cap_elem;
		struct ieee80211_he_mcs_nss_supp *he_mcs =
				&he_cap->he_mcs_nss_supp;

		switch (i) {
		case NL80211_IFTYPE_STATION:
		case NL80211_IFTYPE_AP:
#ifdef CONFIG_MAC80211_MESH
		case NL80211_IFTYPE_MESH_POINT:
#endif
			break;
		default:
			continue;
		}

		data[idx].types_mask = BIT(i);
		he_cap->has_he = true;

		he_cap_elem->mac_cap_info[0] =
			IEEE80211_HE_MAC_CAP0_HTC_HE;
		he_cap_elem->mac_cap_info[3] =
			IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
			IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED;
		he_cap_elem->mac_cap_info[4] =
			IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU;

		if (band == NL80211_BAND_2GHZ)
			he_cap_elem->phy_cap_info[0] =
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
		else if (band == NL80211_BAND_5GHZ)
			he_cap_elem->phy_cap_info[0] =
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G |
				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;

		he_cap_elem->phy_cap_info[1] =
			IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
		he_cap_elem->phy_cap_info[2] =
			IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
			IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ;

		switch (i) {
		case NL80211_IFTYPE_AP:
			he_cap_elem->mac_cap_info[0] |=
				IEEE80211_HE_MAC_CAP0_TWT_RES;
			he_cap_elem->mac_cap_info[2] |=
				IEEE80211_HE_MAC_CAP2_BSR;
			he_cap_elem->mac_cap_info[4] |=
				IEEE80211_HE_MAC_CAP4_BQR;
			he_cap_elem->mac_cap_info[5] |=
				IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
			he_cap_elem->phy_cap_info[3] |=
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
			he_cap_elem->phy_cap_info[6] |=
				IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
			break;
		case NL80211_IFTYPE_STATION:
			he_cap_elem->mac_cap_info[0] |=
				IEEE80211_HE_MAC_CAP0_TWT_REQ;
			he_cap_elem->mac_cap_info[1] |=
				IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;

			if (band == NL80211_BAND_2GHZ)
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
			else if (band == NL80211_BAND_5GHZ)
				he_cap_elem->phy_cap_info[0] |=
					IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;

			he_cap_elem->phy_cap_info[1] |=
				IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
				IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
			he_cap_elem->phy_cap_info[3] |=
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
				IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
			he_cap_elem->phy_cap_info[6] |=
				IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
				IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
				IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
			he_cap_elem->phy_cap_info[7] |=
				IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR |
				IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
			he_cap_elem->phy_cap_info[8] |=
				IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
				IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
				IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
				IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
			he_cap_elem->phy_cap_info[9] |=
				IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
				IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
				IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
				IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
				IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
				IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
			break;
		}

		he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
		he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
		he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
		he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
		he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map);
		he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map);

		mt7915_set_stream_he_txbf_caps(he_cap, i, nss);

		memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
		if (he_cap_elem->phy_cap_info[6] &
		    IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
			mt7915_gen_ppe_thresh(he_cap->ppe_thres, nss);
		} else {
			he_cap_elem->phy_cap_info[9] |=
				IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
		}
		idx++;
	}

	return idx;
}

void mt7915_set_stream_he_caps(struct mt7915_phy *phy)
{
	struct ieee80211_sband_iftype_data *data;
	struct ieee80211_supported_band *band;
	int n;

	if (phy->mt76->cap.has_2ghz) {
		data = phy->iftype[NL80211_BAND_2GHZ];
		n = mt7915_init_he_caps(phy, NL80211_BAND_2GHZ, data);

		band = &phy->mt76->sband_2g.sband;
		band->iftype_data = data;
		band->n_iftype_data = n;
	}

	if (phy->mt76->cap.has_5ghz) {
		data = phy->iftype[NL80211_BAND_5GHZ];
		n = mt7915_init_he_caps(phy, NL80211_BAND_5GHZ, data);

		band = &phy->mt76->sband_5g.sband;
		band->iftype_data = data;
		band->n_iftype_data = n;
	}
}

static void mt7915_unregister_ext_phy(struct mt7915_dev *dev)
{
	struct mt7915_phy *phy = mt7915_ext_phy(dev);
	struct mt76_phy *mphy = dev->mt76.phy2;

	if (!phy)
		return;

	mt7915_unregister_thermal(phy);
	mt76_unregister_phy(mphy);
	ieee80211_free_hw(mphy->hw);
}

int mt7915_register_device(struct mt7915_dev *dev)
{
	struct ieee80211_hw *hw = mt76_hw(dev);
	int ret;

	dev->phy.dev = dev;
	dev->phy.mt76 = &dev->mt76.phy;
	dev->mt76.phy.priv = &dev->phy;
	INIT_LIST_HEAD(&dev->phy.stats_list);
	INIT_WORK(&dev->rc_work, mt7915_mac_sta_rc_work);
	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7915_mac_work);
	INIT_LIST_HEAD(&dev->sta_rc_list);
	INIT_LIST_HEAD(&dev->sta_poll_list);
	spin_lock_init(&dev->sta_poll_lock);

	init_waitqueue_head(&dev->reset_wait);
	INIT_WORK(&dev->reset_work, mt7915_mac_reset_work);

	ret = mt7915_init_hardware(dev);
	if (ret)
		return ret;

	mt7915_init_wiphy(hw);

	if (!dev->dbdc_support)
		dev->mphy.sband_5g.sband.vht_cap.cap |=
			IEEE80211_VHT_CAP_SHORT_GI_160 |
			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;

	dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
	dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
	dev->phy.dfs_state = -1;

#ifdef CONFIG_NL80211_TESTMODE
	dev->mt76.test_ops = &mt7915_testmode_ops;
#endif

	ret = mt76_register_device(&dev->mt76, true, mt7915_rates,
				   ARRAY_SIZE(mt7915_rates));
	if (ret)
		return ret;

	ret = mt7915_thermal_init(&dev->phy);
	if (ret)
		return ret;

	ieee80211_queue_work(mt76_hw(dev), &dev->init_work);

	ret = mt7915_register_ext_phy(dev);
	if (ret)
		return ret;

	return mt7915_init_debugfs(dev);
}

void mt7915_unregister_device(struct mt7915_dev *dev)
{
	mt7915_unregister_ext_phy(dev);
	mt7915_unregister_thermal(&dev->phy);
	mt76_unregister_device(&dev->mt76);
	mt7915_mcu_exit(dev);
	mt7915_tx_token_put(dev);
	mt7915_dma_cleanup(dev);
	tasklet_disable(&dev->irq_tasklet);

	mt76_free_device(&dev->mt76);
}