drivers/net/wireless/mediatek/mt76/mt76x2/phy.c - pub/scm/linux/kernel/git/johan/gnss - Git at Google

 /*
  * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
  * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */

 #include "mt76x2.h"
 #include "eeprom.h"
 #include "mcu.h"
 #include "../mt76x02_phy.h"

 static void
 mt76x2_adjust_high_lna_gain(struct mt76x02_dev *dev, int reg, s8 offset)
 {
 	s8 gain;

 	gain = FIELD_GET(MT_BBP_AGC_LNA_HIGH_GAIN, mt76_rr(dev, MT_BBP(AGC, reg)));
 	gain -= offset / 2;
 	mt76_rmw_field(dev, MT_BBP(AGC, reg), MT_BBP_AGC_LNA_HIGH_GAIN, gain);
 }

 static void
 mt76x2_adjust_agc_gain(struct mt76x02_dev *dev, int reg, s8 offset)
 {
 	s8 gain;

 	gain = FIELD_GET(MT_BBP_AGC_GAIN, mt76_rr(dev, MT_BBP(AGC, reg)));
 	gain += offset;
 	mt76_rmw_field(dev, MT_BBP(AGC, reg), MT_BBP_AGC_GAIN, gain);
 }

 void mt76x2_apply_gain_adj(struct mt76x02_dev *dev)
 {
 	s8 *gain_adj = dev->cal.rx.high_gain;

 	mt76x2_adjust_high_lna_gain(dev, 4, gain_adj[0]);
 	mt76x2_adjust_high_lna_gain(dev, 5, gain_adj[1]);

 	mt76x2_adjust_agc_gain(dev, 8, gain_adj[0]);
 	mt76x2_adjust_agc_gain(dev, 9, gain_adj[1]);
 }
 EXPORT_SYMBOL_GPL(mt76x2_apply_gain_adj);

 void mt76x2_phy_set_txpower_regs(struct mt76x02_dev *dev,
 				 enum nl80211_band band)
 {
 	u32 pa_mode[2];
 	u32 pa_mode_adj;

 	if (band == NL80211_BAND_2GHZ) {
 		pa_mode[0] = 0x010055ff;
 		pa_mode[1] = 0x00550055;

 		mt76_wr(dev, MT_TX_ALC_CFG_2, 0x35160a00);
 		mt76_wr(dev, MT_TX_ALC_CFG_3, 0x35160a06);

 		if (mt76x02_ext_pa_enabled(dev, band)) {
 			mt76_wr(dev, MT_RF_PA_MODE_ADJ0, 0x0000ec00);
 			mt76_wr(dev, MT_RF_PA_MODE_ADJ1, 0x0000ec00);
 		} else {
 			mt76_wr(dev, MT_RF_PA_MODE_ADJ0, 0xf4000200);
 			mt76_wr(dev, MT_RF_PA_MODE_ADJ1, 0xfa000200);
 		}
 	} else {
 		pa_mode[0] = 0x0000ffff;
 		pa_mode[1] = 0x00ff00ff;

 		if (mt76x02_ext_pa_enabled(dev, band)) {
 			mt76_wr(dev, MT_TX_ALC_CFG_2, 0x2f0f0400);
 			mt76_wr(dev, MT_TX_ALC_CFG_3, 0x2f0f0476);
 		} else {
 			mt76_wr(dev, MT_TX_ALC_CFG_2, 0x1b0f0400);
 			mt76_wr(dev, MT_TX_ALC_CFG_3, 0x1b0f0476);
 		}

 		if (mt76x02_ext_pa_enabled(dev, band))
 			pa_mode_adj = 0x04000000;
 		else
 			pa_mode_adj = 0;

 		mt76_wr(dev, MT_RF_PA_MODE_ADJ0, pa_mode_adj);
 		mt76_wr(dev, MT_RF_PA_MODE_ADJ1, pa_mode_adj);
 	}

 	mt76_wr(dev, MT_BB_PA_MODE_CFG0, pa_mode[0]);
 	mt76_wr(dev, MT_BB_PA_MODE_CFG1, pa_mode[1]);
 	mt76_wr(dev, MT_RF_PA_MODE_CFG0, pa_mode[0]);
 	mt76_wr(dev, MT_RF_PA_MODE_CFG1, pa_mode[1]);

 	if (mt76x02_ext_pa_enabled(dev, band)) {
 		u32 val;

 		if (band == NL80211_BAND_2GHZ)
 			val = 0x3c3c023c;
 		else
 			val = 0x363c023c;

 		mt76_wr(dev, MT_TX0_RF_GAIN_CORR, val);
 		mt76_wr(dev, MT_TX1_RF_GAIN_CORR, val);
 		mt76_wr(dev, MT_TX_ALC_CFG_4, 0x00001818);
 	} else {
 		if (band == NL80211_BAND_2GHZ) {
 			u32 val = 0x0f3c3c3c;

 			mt76_wr(dev, MT_TX0_RF_GAIN_CORR, val);
 			mt76_wr(dev, MT_TX1_RF_GAIN_CORR, val);
 			mt76_wr(dev, MT_TX_ALC_CFG_4, 0x00000606);
 		} else {
 			mt76_wr(dev, MT_TX0_RF_GAIN_CORR, 0x383c023c);
 			mt76_wr(dev, MT_TX1_RF_GAIN_CORR, 0x24282e28);
 			mt76_wr(dev, MT_TX_ALC_CFG_4, 0);
 		}
 	}
 }
 EXPORT_SYMBOL_GPL(mt76x2_phy_set_txpower_regs);

 static int
 mt76x2_get_min_rate_power(struct mt76_rate_power *r)
 {
 	int i;
 	s8 ret = 0;

 	for (i = 0; i < sizeof(r->all); i++) {
 		if (!r->all[i])
 			continue;

 		if (ret)
 			ret = min(ret, r->all[i]);
 		else
 			ret = r->all[i];
 	}

 	return ret;
 }

 void mt76x2_phy_set_txpower(struct mt76x02_dev *dev)
 {
 	enum nl80211_chan_width width = dev->mt76.chandef.width;
 	struct ieee80211_channel *chan = dev->mt76.chandef.chan;
 	struct mt76x2_tx_power_info txp;
 	int txp_0, txp_1, delta = 0;
 	struct mt76_rate_power t = {};
 	int base_power, gain;

 	mt76x2_get_power_info(dev, &txp, chan);

 	if (width == NL80211_CHAN_WIDTH_40)
 		delta = txp.delta_bw40;
 	else if (width == NL80211_CHAN_WIDTH_80)
 		delta = txp.delta_bw80;

 	mt76x2_get_rate_power(dev, &t, chan);
 	mt76x02_add_rate_power_offset(&t, txp.chain[0].target_power);
 	mt76x02_limit_rate_power(&t, dev->mt76.txpower_conf);
 	dev->mt76.txpower_cur = mt76x02_get_max_rate_power(&t);

 	base_power = mt76x2_get_min_rate_power(&t);
 	delta += base_power - txp.chain[0].target_power;
 	txp_0 = txp.chain[0].target_power + txp.chain[0].delta + delta;
 	txp_1 = txp.chain[1].target_power + txp.chain[1].delta + delta;

 	gain = min(txp_0, txp_1);
 	if (gain < 0) {
 		base_power -= gain;
 		txp_0 -= gain;
 		txp_1 -= gain;
 	} else if (gain > 0x2f) {
 		base_power -= gain - 0x2f;
 		txp_0 = 0x2f;
 		txp_1 = 0x2f;
 	}

 	mt76x02_add_rate_power_offset(&t, -base_power);
 	dev->target_power = txp.chain[0].target_power;
 	dev->target_power_delta[0] = txp_0 - txp.chain[0].target_power;
 	dev->target_power_delta[1] = txp_1 - txp.chain[0].target_power;
 	dev->mt76.rate_power = t;

 	mt76x02_phy_set_txpower(dev, txp_0, txp_1);
 }
 EXPORT_SYMBOL_GPL(mt76x2_phy_set_txpower);

 void mt76x2_configure_tx_delay(struct mt76x02_dev *dev,
 			       enum nl80211_band band, u8 bw)
 {
 	u32 cfg0, cfg1;

 	if (mt76x02_ext_pa_enabled(dev, band)) {
 		cfg0 = bw ? 0x000b0c01 : 0x00101101;
 		cfg1 = 0x00011414;
 	} else {
 		cfg0 = bw ? 0x000b0b01 : 0x00101001;
 		cfg1 = 0x00021414;
 	}
 	mt76_wr(dev, MT_TX_SW_CFG0, cfg0);
 	mt76_wr(dev, MT_TX_SW_CFG1, cfg1);

 	mt76_rmw_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_OFDM_SIFS, 15);
 }
 EXPORT_SYMBOL_GPL(mt76x2_configure_tx_delay);

 void mt76x2_phy_tssi_compensate(struct mt76x02_dev *dev)
 {
 	struct ieee80211_channel *chan = dev->mt76.chandef.chan;
 	struct mt76x2_tx_power_info txp;
 	struct mt76x2_tssi_comp t = {};

 	if (!dev->cal.tssi_cal_done)
 		return;

 	if (!dev->cal.tssi_comp_pending) {
 		/* TSSI trigger */
 		t.cal_mode = BIT(0);
 		mt76x2_mcu_tssi_comp(dev, &t);
 		dev->cal.tssi_comp_pending = true;
 	} else {
 		if (mt76_rr(dev, MT_BBP(CORE, 34)) & BIT(4))
 			return;

 		dev->cal.tssi_comp_pending = false;
 		mt76x2_get_power_info(dev, &txp, chan);

 		if (mt76x02_ext_pa_enabled(dev, chan->band))
 			t.pa_mode = 1;

 		t.cal_mode = BIT(1);
 		t.slope0 = txp.chain[0].tssi_slope;
 		t.offset0 = txp.chain[0].tssi_offset;
 		t.slope1 = txp.chain[1].tssi_slope;
 		t.offset1 = txp.chain[1].tssi_offset;
 		mt76x2_mcu_tssi_comp(dev, &t);

 		if (t.pa_mode || dev->cal.dpd_cal_done || dev->ed_tx_blocked)
 			return;

 		usleep_range(10000, 20000);
 		mt76x02_mcu_calibrate(dev, MCU_CAL_DPD, chan->hw_value);
 		dev->cal.dpd_cal_done = true;
 	}
 }
 EXPORT_SYMBOL_GPL(mt76x2_phy_tssi_compensate);

 static void
 mt76x2_phy_set_gain_val(struct mt76x02_dev *dev)
 {
 	u32 val;
 	u8 gain_val[2];

 	gain_val[0] = dev->cal.agc_gain_cur[0] - dev->cal.agc_gain_adjust;
 	gain_val[1] = dev->cal.agc_gain_cur[1] - dev->cal.agc_gain_adjust;

 	if (dev->mt76.chandef.width >= NL80211_CHAN_WIDTH_40)
 		val = 0x1e42 << 16;
 	else
 		val = 0x1836 << 16;

 	val |= 0xf8;

 	mt76_wr(dev, MT_BBP(AGC, 8),
 		val | FIELD_PREP(MT_BBP_AGC_GAIN, gain_val[0]));
 	mt76_wr(dev, MT_BBP(AGC, 9),
 		val | FIELD_PREP(MT_BBP_AGC_GAIN, gain_val[1]));

 	if (dev->mt76.chandef.chan->flags & IEEE80211_CHAN_RADAR)
 		mt76x02_phy_dfs_adjust_agc(dev);
 }

 void mt76x2_phy_update_channel_gain(struct mt76x02_dev *dev)
 {
 	u8 *gain = dev->cal.agc_gain_init;
 	u8 low_gain_delta, gain_delta;
 	bool gain_change;
 	int low_gain;
 	u32 val;

 	dev->cal.avg_rssi_all = mt76_get_min_avg_rssi(&dev->mt76);
 	if (!dev->cal.avg_rssi_all)
 		dev->cal.avg_rssi_all = -75;

 	low_gain = (dev->cal.avg_rssi_all > mt76x02_get_rssi_gain_thresh(dev)) +
 		   (dev->cal.avg_rssi_all > mt76x02_get_low_rssi_gain_thresh(dev));

 	gain_change = dev->cal.low_gain < 0 ||
 		      (dev->cal.low_gain & 2) ^ (low_gain & 2);
 	dev->cal.low_gain = low_gain;

 	if (!gain_change) {
 		if (mt76x02_phy_adjust_vga_gain(dev))
 			mt76x2_phy_set_gain_val(dev);
 		return;
 	}

 	if (dev->mt76.chandef.width == NL80211_CHAN_WIDTH_80) {
 		mt76_wr(dev, MT_BBP(RXO, 14), 0x00560211);
 		val = mt76_rr(dev, MT_BBP(AGC, 26)) & ~0xf;
 		if (low_gain == 2)
 			val |= 0x3;
 		else
 			val |= 0x5;
 		mt76_wr(dev, MT_BBP(AGC, 26), val);
 	} else {
 		mt76_wr(dev, MT_BBP(RXO, 14), 0x00560423);
 	}

 	if (mt76x2_has_ext_lna(dev))
 		low_gain_delta = 10;
 	else
 		low_gain_delta = 14;

 	if (low_gain == 2) {
 		mt76_wr(dev, MT_BBP(RXO, 18), 0xf000a990);
 		mt76_wr(dev, MT_BBP(AGC, 35), 0x08080808);
 		mt76_wr(dev, MT_BBP(AGC, 37), 0x08080808);
 		gain_delta = low_gain_delta;
 		dev->cal.agc_gain_adjust = 0;
 	} else {
 		mt76_wr(dev, MT_BBP(RXO, 18), 0xf000a991);
 		if (dev->mt76.chandef.width == NL80211_CHAN_WIDTH_80)
 			mt76_wr(dev, MT_BBP(AGC, 35), 0x10101014);
 		else
 			mt76_wr(dev, MT_BBP(AGC, 35), 0x11111116);
 		mt76_wr(dev, MT_BBP(AGC, 37), 0x2121262C);
 		gain_delta = 0;
 		dev->cal.agc_gain_adjust = low_gain_delta;
 	}

 	dev->cal.agc_gain_cur[0] = gain[0] - gain_delta;
 	dev->cal.agc_gain_cur[1] = gain[1] - gain_delta;
 	mt76x2_phy_set_gain_val(dev);

 	/* clear false CCA counters */
 	mt76_rr(dev, MT_RX_STAT_1);
 }
 EXPORT_SYMBOL_GPL(mt76x2_phy_update_channel_gain);
	/*
	* Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
	* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
	*
	* Permission to use, copy, modify, and/or distribute this software for any
	* purpose with or without fee is hereby granted, provided that the above
	* copyright notice and this permission notice appear in all copies.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	*/

	#include "mt76x2.h"
	#include "eeprom.h"
	#include "mcu.h"
	#include "../mt76x02_phy.h"

	static void
	mt76x2_adjust_high_lna_gain(struct mt76x02_dev *dev, int reg, s8 offset)
	{
	s8 gain;

	gain = FIELD_GET(MT_BBP_AGC_LNA_HIGH_GAIN, mt76_rr(dev, MT_BBP(AGC, reg)));
	gain -= offset / 2;
	mt76_rmw_field(dev, MT_BBP(AGC, reg), MT_BBP_AGC_LNA_HIGH_GAIN, gain);
	}

	static void
	mt76x2_adjust_agc_gain(struct mt76x02_dev *dev, int reg, s8 offset)
	{
	s8 gain;

	gain = FIELD_GET(MT_BBP_AGC_GAIN, mt76_rr(dev, MT_BBP(AGC, reg)));
	gain += offset;
	mt76_rmw_field(dev, MT_BBP(AGC, reg), MT_BBP_AGC_GAIN, gain);
	}

	void mt76x2_apply_gain_adj(struct mt76x02_dev *dev)
	{
	s8 *gain_adj = dev->cal.rx.high_gain;

	mt76x2_adjust_high_lna_gain(dev, 4, gain_adj[0]);
	mt76x2_adjust_high_lna_gain(dev, 5, gain_adj[1]);

	mt76x2_adjust_agc_gain(dev, 8, gain_adj[0]);
	mt76x2_adjust_agc_gain(dev, 9, gain_adj[1]);
	}
	EXPORT_SYMBOL_GPL(mt76x2_apply_gain_adj);

	void mt76x2_phy_set_txpower_regs(struct mt76x02_dev *dev,
	enum nl80211_band band)
	{
	u32 pa_mode[2];
	u32 pa_mode_adj;

	if (band == NL80211_BAND_2GHZ) {
	pa_mode[0] = 0x010055ff;
	pa_mode[1] = 0x00550055;

	mt76_wr(dev, MT_TX_ALC_CFG_2, 0x35160a00);
	mt76_wr(dev, MT_TX_ALC_CFG_3, 0x35160a06);

	if (mt76x02_ext_pa_enabled(dev, band)) {
	mt76_wr(dev, MT_RF_PA_MODE_ADJ0, 0x0000ec00);
	mt76_wr(dev, MT_RF_PA_MODE_ADJ1, 0x0000ec00);
	} else {
	mt76_wr(dev, MT_RF_PA_MODE_ADJ0, 0xf4000200);
	mt76_wr(dev, MT_RF_PA_MODE_ADJ1, 0xfa000200);
	}
	} else {
	pa_mode[0] = 0x0000ffff;
	pa_mode[1] = 0x00ff00ff;

	if (mt76x02_ext_pa_enabled(dev, band)) {
	mt76_wr(dev, MT_TX_ALC_CFG_2, 0x2f0f0400);
	mt76_wr(dev, MT_TX_ALC_CFG_3, 0x2f0f0476);
	} else {
	mt76_wr(dev, MT_TX_ALC_CFG_2, 0x1b0f0400);
	mt76_wr(dev, MT_TX_ALC_CFG_3, 0x1b0f0476);
	}

	if (mt76x02_ext_pa_enabled(dev, band))
	pa_mode_adj = 0x04000000;
	else
	pa_mode_adj = 0;

	mt76_wr(dev, MT_RF_PA_MODE_ADJ0, pa_mode_adj);
	mt76_wr(dev, MT_RF_PA_MODE_ADJ1, pa_mode_adj);
	}

	mt76_wr(dev, MT_BB_PA_MODE_CFG0, pa_mode[0]);
	mt76_wr(dev, MT_BB_PA_MODE_CFG1, pa_mode[1]);
	mt76_wr(dev, MT_RF_PA_MODE_CFG0, pa_mode[0]);
	mt76_wr(dev, MT_RF_PA_MODE_CFG1, pa_mode[1]);

	if (mt76x02_ext_pa_enabled(dev, band)) {
	u32 val;

	if (band == NL80211_BAND_2GHZ)
	val = 0x3c3c023c;
	else
	val = 0x363c023c;

	mt76_wr(dev, MT_TX0_RF_GAIN_CORR, val);
	mt76_wr(dev, MT_TX1_RF_GAIN_CORR, val);
	mt76_wr(dev, MT_TX_ALC_CFG_4, 0x00001818);
	} else {
	if (band == NL80211_BAND_2GHZ) {
	u32 val = 0x0f3c3c3c;

	mt76_wr(dev, MT_TX0_RF_GAIN_CORR, val);
	mt76_wr(dev, MT_TX1_RF_GAIN_CORR, val);
	mt76_wr(dev, MT_TX_ALC_CFG_4, 0x00000606);
	} else {
	mt76_wr(dev, MT_TX0_RF_GAIN_CORR, 0x383c023c);
	mt76_wr(dev, MT_TX1_RF_GAIN_CORR, 0x24282e28);
	mt76_wr(dev, MT_TX_ALC_CFG_4, 0);
	}
	}
	}
	EXPORT_SYMBOL_GPL(mt76x2_phy_set_txpower_regs);

	static int
	mt76x2_get_min_rate_power(struct mt76_rate_power *r)
	{
	int i;
	s8 ret = 0;

	for (i = 0; i < sizeof(r->all); i++) {
	if (!r->all[i])
	continue;

	if (ret)
	ret = min(ret, r->all[i]);
	else
	ret = r->all[i];
	}

	return ret;
	}

	void mt76x2_phy_set_txpower(struct mt76x02_dev *dev)
	{
	enum nl80211_chan_width width = dev->mt76.chandef.width;
	struct ieee80211_channel *chan = dev->mt76.chandef.chan;
	struct mt76x2_tx_power_info txp;
	int txp_0, txp_1, delta = 0;
	struct mt76_rate_power t = {};
	int base_power, gain;

	mt76x2_get_power_info(dev, &txp, chan);

	if (width == NL80211_CHAN_WIDTH_40)
	delta = txp.delta_bw40;
	else if (width == NL80211_CHAN_WIDTH_80)
	delta = txp.delta_bw80;

	mt76x2_get_rate_power(dev, &t, chan);
	mt76x02_add_rate_power_offset(&t, txp.chain[0].target_power);
	mt76x02_limit_rate_power(&t, dev->mt76.txpower_conf);
	dev->mt76.txpower_cur = mt76x02_get_max_rate_power(&t);

	base_power = mt76x2_get_min_rate_power(&t);
	delta += base_power - txp.chain[0].target_power;
	txp_0 = txp.chain[0].target_power + txp.chain[0].delta + delta;
	txp_1 = txp.chain[1].target_power + txp.chain[1].delta + delta;

	gain = min(txp_0, txp_1);
	if (gain < 0) {
	base_power -= gain;
	txp_0 -= gain;
	txp_1 -= gain;
	} else if (gain > 0x2f) {
	base_power -= gain - 0x2f;
	txp_0 = 0x2f;
	txp_1 = 0x2f;
	}

	mt76x02_add_rate_power_offset(&t, -base_power);
	dev->target_power = txp.chain[0].target_power;
	dev->target_power_delta[0] = txp_0 - txp.chain[0].target_power;
	dev->target_power_delta[1] = txp_1 - txp.chain[0].target_power;
	dev->mt76.rate_power = t;

	mt76x02_phy_set_txpower(dev, txp_0, txp_1);
	}
	EXPORT_SYMBOL_GPL(mt76x2_phy_set_txpower);

	void mt76x2_configure_tx_delay(struct mt76x02_dev *dev,
	enum nl80211_band band, u8 bw)
	{
	u32 cfg0, cfg1;

	if (mt76x02_ext_pa_enabled(dev, band)) {
	cfg0 = bw ? 0x000b0c01 : 0x00101101;
	cfg1 = 0x00011414;
	} else {
	cfg0 = bw ? 0x000b0b01 : 0x00101001;
	cfg1 = 0x00021414;
	}
	mt76_wr(dev, MT_TX_SW_CFG0, cfg0);
	mt76_wr(dev, MT_TX_SW_CFG1, cfg1);

	mt76_rmw_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_OFDM_SIFS, 15);
	}
	EXPORT_SYMBOL_GPL(mt76x2_configure_tx_delay);

	void mt76x2_phy_tssi_compensate(struct mt76x02_dev *dev)
	{
	struct ieee80211_channel *chan = dev->mt76.chandef.chan;
	struct mt76x2_tx_power_info txp;
	struct mt76x2_tssi_comp t = {};

	if (!dev->cal.tssi_cal_done)
	return;

	if (!dev->cal.tssi_comp_pending) {
	/* TSSI trigger */
	t.cal_mode = BIT(0);
	mt76x2_mcu_tssi_comp(dev, &t);
	dev->cal.tssi_comp_pending = true;
	} else {
	if (mt76_rr(dev, MT_BBP(CORE, 34)) & BIT(4))
	return;

	dev->cal.tssi_comp_pending = false;
	mt76x2_get_power_info(dev, &txp, chan);

	if (mt76x02_ext_pa_enabled(dev, chan->band))
	t.pa_mode = 1;

	t.cal_mode = BIT(1);
	t.slope0 = txp.chain[0].tssi_slope;
	t.offset0 = txp.chain[0].tssi_offset;
	t.slope1 = txp.chain[1].tssi_slope;
	t.offset1 = txp.chain[1].tssi_offset;
	mt76x2_mcu_tssi_comp(dev, &t);

	if (t.pa_mode \|\| dev->cal.dpd_cal_done \|\| dev->ed_tx_blocked)
	return;

	usleep_range(10000, 20000);
	mt76x02_mcu_calibrate(dev, MCU_CAL_DPD, chan->hw_value);
	dev->cal.dpd_cal_done = true;
	}
	}
	EXPORT_SYMBOL_GPL(mt76x2_phy_tssi_compensate);

	static void
	mt76x2_phy_set_gain_val(struct mt76x02_dev *dev)
	{
	u32 val;
	u8 gain_val[2];

	gain_val[0] = dev->cal.agc_gain_cur[0] - dev->cal.agc_gain_adjust;
	gain_val[1] = dev->cal.agc_gain_cur[1] - dev->cal.agc_gain_adjust;

	if (dev->mt76.chandef.width >= NL80211_CHAN_WIDTH_40)
	val = 0x1e42 << 16;
	else
	val = 0x1836 << 16;

	val \|= 0xf8;

	mt76_wr(dev, MT_BBP(AGC, 8),
	val \| FIELD_PREP(MT_BBP_AGC_GAIN, gain_val[0]));
	mt76_wr(dev, MT_BBP(AGC, 9),
	val \| FIELD_PREP(MT_BBP_AGC_GAIN, gain_val[1]));

	if (dev->mt76.chandef.chan->flags & IEEE80211_CHAN_RADAR)
	mt76x02_phy_dfs_adjust_agc(dev);
	}

	void mt76x2_phy_update_channel_gain(struct mt76x02_dev *dev)
	{
	u8 *gain = dev->cal.agc_gain_init;
	u8 low_gain_delta, gain_delta;
	bool gain_change;
	int low_gain;
	u32 val;

	dev->cal.avg_rssi_all = mt76_get_min_avg_rssi(&dev->mt76);
	if (!dev->cal.avg_rssi_all)
	dev->cal.avg_rssi_all = -75;

	low_gain = (dev->cal.avg_rssi_all > mt76x02_get_rssi_gain_thresh(dev)) +
	(dev->cal.avg_rssi_all > mt76x02_get_low_rssi_gain_thresh(dev));

	gain_change = dev->cal.low_gain < 0 \|\|
	(dev->cal.low_gain & 2) ^ (low_gain & 2);
	dev->cal.low_gain = low_gain;

	if (!gain_change) {
	if (mt76x02_phy_adjust_vga_gain(dev))
	mt76x2_phy_set_gain_val(dev);
	return;
	}

	if (dev->mt76.chandef.width == NL80211_CHAN_WIDTH_80) {
	mt76_wr(dev, MT_BBP(RXO, 14), 0x00560211);
	val = mt76_rr(dev, MT_BBP(AGC, 26)) & ~0xf;
	if (low_gain == 2)
	val \|= 0x3;
	else
	val \|= 0x5;
	mt76_wr(dev, MT_BBP(AGC, 26), val);
	} else {
	mt76_wr(dev, MT_BBP(RXO, 14), 0x00560423);
	}

	if (mt76x2_has_ext_lna(dev))
	low_gain_delta = 10;
	else
	low_gain_delta = 14;

	if (low_gain == 2) {
	mt76_wr(dev, MT_BBP(RXO, 18), 0xf000a990);
	mt76_wr(dev, MT_BBP(AGC, 35), 0x08080808);
	mt76_wr(dev, MT_BBP(AGC, 37), 0x08080808);
	gain_delta = low_gain_delta;
	dev->cal.agc_gain_adjust = 0;
	} else {
	mt76_wr(dev, MT_BBP(RXO, 18), 0xf000a991);
	if (dev->mt76.chandef.width == NL80211_CHAN_WIDTH_80)
	mt76_wr(dev, MT_BBP(AGC, 35), 0x10101014);
	else
	mt76_wr(dev, MT_BBP(AGC, 35), 0x11111116);
	mt76_wr(dev, MT_BBP(AGC, 37), 0x2121262C);
	gain_delta = 0;
	dev->cal.agc_gain_adjust = low_gain_delta;
	}

	dev->cal.agc_gain_cur[0] = gain[0] - gain_delta;
	dev->cal.agc_gain_cur[1] = gain[1] - gain_delta;
	mt76x2_phy_set_gain_val(dev);

	/* clear false CCA counters */
	mt76_rr(dev, MT_RX_STAT_1);
	}
	EXPORT_SYMBOL_GPL(mt76x2_phy_update_channel_gain);