Resguardo inicial

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/Kconfig

@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+config MT76x2_COMMON
+	tristate
+	select MT76x02_LIB
+
+config MT76x2E
+	tristate "MediaTek MT76x2E (PCIe) support"
+	select MT76x2_COMMON
+	depends on MAC80211
+	depends on PCI
+	help
+	  This adds support for MT7612/MT7602/MT7662-based PCIe wireless
+	  devices, which comply with IEEE 802.11ac standards and support
+	  2SS to 866Mbit/s PHY rate.
+
+	  To compile this driver as a module, choose M here.
+
+config MT76x2U
+	tristate "MediaTek MT76x2U (USB) support"
+	select MT76x2_COMMON
+	select MT76x02_USB
+	depends on MAC80211
+	depends on USB
+	help
+	  This adds support for MT7612U-based USB 3.0 wireless dongles,
+	  which comply with IEEE 802.11ac standards and support 2SS to
+	  866Mbit/s PHY rate.
+
+	  To compile this driver as a module, choose M here.

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/Makefile

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: BSD-3-Clause-Clear
+obj-$(CONFIG_MT76x2_COMMON) += mt76x2-common.o
+obj-$(CONFIG_MT76x2E) += mt76x2e.o
+obj-$(CONFIG_MT76x2U) += mt76x2u.o
+
+mt76x2-common-y := \
+	eeprom.o mac.o init.o phy.o mcu.o
+
+mt76x2e-y := \
+	pci.o pci_main.o pci_init.o pci_mcu.o \
+	pci_phy.o
+
+mt76x2u-y := \
+	usb.o usb_init.o usb_main.o usb_mac.o usb_mcu.o \
+	usb_phy.o

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/eeprom.c

@@ -0,0 +1,512 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/unaligned.h>
+#include "mt76x2.h"
+#include "eeprom.h"
+
+#define EE_FIELD(_name, _value) [MT_EE_##_name] = (_value) | 1
+
+static int
+mt76x2_eeprom_get_macaddr(struct mt76x02_dev *dev)
+{
+	void *src = dev->mt76.eeprom.data + MT_EE_MAC_ADDR;
+
+	memcpy(dev->mphy.macaddr, src, ETH_ALEN);
+	return 0;
+}
+
+static bool
+mt76x2_has_cal_free_data(struct mt76x02_dev *dev, u8 *efuse)
+{
+	u16 *efuse_w = (u16 *)efuse;
+
+	if (efuse_w[MT_EE_NIC_CONF_0] != 0)
+		return false;
+
+	if (efuse_w[MT_EE_XTAL_TRIM_1] == 0xffff)
+		return false;
+
+	if (efuse_w[MT_EE_TX_POWER_DELTA_BW40] != 0)
+		return false;
+
+	if (efuse_w[MT_EE_TX_POWER_0_START_2G] == 0xffff)
+		return false;
+
+	if (efuse_w[MT_EE_TX_POWER_0_GRP3_TX_POWER_DELTA] != 0)
+		return false;
+
+	if (efuse_w[MT_EE_TX_POWER_0_GRP4_TSSI_SLOPE] == 0xffff)
+		return false;
+
+	return true;
+}
+
+static void
+mt76x2_apply_cal_free_data(struct mt76x02_dev *dev, u8 *efuse)
+{
+#define GROUP_5G(_id)							   \
+	MT_EE_TX_POWER_0_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id),	   \
+	MT_EE_TX_POWER_0_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id) + 1, \
+	MT_EE_TX_POWER_1_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id),	   \
+	MT_EE_TX_POWER_1_START_5G + MT_TX_POWER_GROUP_SIZE_5G * (_id) + 1
+
+	static const u8 cal_free_bytes[] = {
+		MT_EE_XTAL_TRIM_1,
+		MT_EE_TX_POWER_EXT_PA_5G + 1,
+		MT_EE_TX_POWER_0_START_2G,
+		MT_EE_TX_POWER_0_START_2G + 1,
+		MT_EE_TX_POWER_1_START_2G,
+		MT_EE_TX_POWER_1_START_2G + 1,
+		GROUP_5G(0),
+		GROUP_5G(1),
+		GROUP_5G(2),
+		GROUP_5G(3),
+		GROUP_5G(4),
+		GROUP_5G(5),
+		MT_EE_RF_2G_TSSI_OFF_TXPOWER,
+		MT_EE_RF_2G_RX_HIGH_GAIN + 1,
+		MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN,
+		MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN + 1,
+		MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN,
+		MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN + 1,
+		MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN,
+		MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN + 1,
+	};
+	struct device_node *np = dev->mt76.dev->of_node;
+	u8 *eeprom = dev->mt76.eeprom.data;
+	u8 prev_grp0[4] = {
+		eeprom[MT_EE_TX_POWER_0_START_5G],
+		eeprom[MT_EE_TX_POWER_0_START_5G + 1],
+		eeprom[MT_EE_TX_POWER_1_START_5G],
+		eeprom[MT_EE_TX_POWER_1_START_5G + 1]
+	};
+	u16 val;
+	int i;
+
+	if (!np || !of_property_read_bool(np, "mediatek,eeprom-merge-otp"))
+		return;
+
+	if (!mt76x2_has_cal_free_data(dev, efuse))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(cal_free_bytes); i++) {
+		int offset = cal_free_bytes[i];
+
+		eeprom[offset] = efuse[offset];
+	}
+
+	if (!(efuse[MT_EE_TX_POWER_0_START_5G] |
+	      efuse[MT_EE_TX_POWER_0_START_5G + 1]))
+		memcpy(eeprom + MT_EE_TX_POWER_0_START_5G, prev_grp0, 2);
+	if (!(efuse[MT_EE_TX_POWER_1_START_5G] |
+	      efuse[MT_EE_TX_POWER_1_START_5G + 1]))
+		memcpy(eeprom + MT_EE_TX_POWER_1_START_5G, prev_grp0 + 2, 2);
+
+	val = get_unaligned_le16(efuse + MT_EE_BT_RCAL_RESULT);
+	if (val != 0xffff)
+		eeprom[MT_EE_BT_RCAL_RESULT] = val & 0xff;
+
+	val = get_unaligned_le16(efuse + MT_EE_BT_VCDL_CALIBRATION);
+	if (val != 0xffff)
+		eeprom[MT_EE_BT_VCDL_CALIBRATION + 1] = val >> 8;
+
+	val = get_unaligned_le16(efuse + MT_EE_BT_PMUCFG);
+	if (val != 0xffff)
+		eeprom[MT_EE_BT_PMUCFG] = val & 0xff;
+}
+
+static int mt76x2_check_eeprom(struct mt76x02_dev *dev)
+{
+	u16 val = get_unaligned_le16(dev->mt76.eeprom.data);
+
+	if (!val)
+		val = get_unaligned_le16(dev->mt76.eeprom.data + MT_EE_PCI_ID);
+
+	switch (val) {
+	case 0x7662:
+	case 0x7612:
+		return 0;
+	default:
+		dev_err(dev->mt76.dev, "EEPROM data check failed: %04x\n", val);
+		return -EINVAL;
+	}
+}
+
+static int
+mt76x2_eeprom_load(struct mt76x02_dev *dev)
+{
+	void *efuse;
+	bool found;
+	int ret;
+
+	ret = mt76_eeprom_init(&dev->mt76, MT7662_EEPROM_SIZE);
+	if (ret < 0)
+		return ret;
+
+	found = ret;
+	if (found)
+		found = !mt76x2_check_eeprom(dev);
+
+	dev->mt76.otp.data = devm_kzalloc(dev->mt76.dev, MT7662_EEPROM_SIZE,
+					  GFP_KERNEL);
+	dev->mt76.otp.size = MT7662_EEPROM_SIZE;
+	if (!dev->mt76.otp.data)
+		return -ENOMEM;
+
+	efuse = dev->mt76.otp.data;
+
+	if (mt76x02_get_efuse_data(dev, 0, efuse, MT7662_EEPROM_SIZE,
+				   MT_EE_READ))
+		goto out;
+
+	if (found) {
+		mt76x2_apply_cal_free_data(dev, efuse);
+	} else {
+		/* FIXME: check if efuse data is complete */
+		found = true;
+		memcpy(dev->mt76.eeprom.data, efuse, MT7662_EEPROM_SIZE);
+	}
+
+out:
+	if (!found)
+		return -ENOENT;
+
+	return 0;
+}
+
+static void
+mt76x2_set_rx_gain_group(struct mt76x02_dev *dev, u8 val)
+{
+	s8 *dest = dev->cal.rx.high_gain;
+
+	if (!mt76x02_field_valid(val)) {
+		dest[0] = 0;
+		dest[1] = 0;
+		return;
+	}
+
+	dest[0] = mt76x02_sign_extend(val, 4);
+	dest[1] = mt76x02_sign_extend(val >> 4, 4);
+}
+
+static void
+mt76x2_set_rssi_offset(struct mt76x02_dev *dev, int chain, u8 val)
+{
+	s8 *dest = dev->cal.rx.rssi_offset;
+
+	if (!mt76x02_field_valid(val)) {
+		dest[chain] = 0;
+		return;
+	}
+
+	dest[chain] = mt76x02_sign_extend_optional(val, 7);
+}
+
+static enum mt76x2_cal_channel_group
+mt76x2_get_cal_channel_group(int channel)
+{
+	if (channel >= 184 && channel <= 196)
+		return MT_CH_5G_JAPAN;
+	if (channel <= 48)
+		return MT_CH_5G_UNII_1;
+	if (channel <= 64)
+		return MT_CH_5G_UNII_2;
+	if (channel <= 114)
+		return MT_CH_5G_UNII_2E_1;
+	if (channel <= 144)
+		return MT_CH_5G_UNII_2E_2;
+	return MT_CH_5G_UNII_3;
+}
+
+static u8
+mt76x2_get_5g_rx_gain(struct mt76x02_dev *dev, u8 channel)
+{
+	enum mt76x2_cal_channel_group group;
+
+	group = mt76x2_get_cal_channel_group(channel);
+	switch (group) {
+	case MT_CH_5G_JAPAN:
+		return mt76x02_eeprom_get(dev,
+					  MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN);
+	case MT_CH_5G_UNII_1:
+		return mt76x02_eeprom_get(dev,
+					  MT_EE_RF_5G_GRP0_1_RX_HIGH_GAIN) >> 8;
+	case MT_CH_5G_UNII_2:
+		return mt76x02_eeprom_get(dev,
+					  MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN);
+	case MT_CH_5G_UNII_2E_1:
+		return mt76x02_eeprom_get(dev,
+					  MT_EE_RF_5G_GRP2_3_RX_HIGH_GAIN) >> 8;
+	case MT_CH_5G_UNII_2E_2:
+		return mt76x02_eeprom_get(dev,
+					  MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN);
+	default:
+		return mt76x02_eeprom_get(dev,
+					  MT_EE_RF_5G_GRP4_5_RX_HIGH_GAIN) >> 8;
+	}
+}
+
+void mt76x2_read_rx_gain(struct mt76x02_dev *dev)
+{
+	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
+	int channel = chan->hw_value;
+	s8 lna_5g[3], lna_2g;
+	bool use_lna;
+	u8 lna = 0;
+	u16 val;
+
+	if (chan->band == NL80211_BAND_2GHZ)
+		val = mt76x02_eeprom_get(dev, MT_EE_RF_2G_RX_HIGH_GAIN) >> 8;
+	else
+		val = mt76x2_get_5g_rx_gain(dev, channel);
+
+	mt76x2_set_rx_gain_group(dev, val);
+
+	mt76x02_get_rx_gain(dev, chan->band, &val, &lna_2g, lna_5g);
+	mt76x2_set_rssi_offset(dev, 0, val);
+	mt76x2_set_rssi_offset(dev, 1, val >> 8);
+
+	dev->cal.rx.mcu_gain =  (lna_2g & 0xff);
+	dev->cal.rx.mcu_gain |= (lna_5g[0] & 0xff) << 8;
+	dev->cal.rx.mcu_gain |= (lna_5g[1] & 0xff) << 16;
+	dev->cal.rx.mcu_gain |= (lna_5g[2] & 0xff) << 24;
+
+	val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1);
+	if (chan->band == NL80211_BAND_2GHZ)
+		use_lna = !(val & MT_EE_NIC_CONF_1_LNA_EXT_2G);
+	else
+		use_lna = !(val & MT_EE_NIC_CONF_1_LNA_EXT_5G);
+
+	if (use_lna)
+		lna = mt76x02_get_lna_gain(dev, &lna_2g, lna_5g, chan);
+
+	dev->cal.rx.lna_gain = mt76x02_sign_extend(lna, 8);
+}
+EXPORT_SYMBOL_GPL(mt76x2_read_rx_gain);
+
+void mt76x2_get_rate_power(struct mt76x02_dev *dev, struct mt76x02_rate_power *t,
+			   struct ieee80211_channel *chan)
+{
+	bool is_5ghz;
+	u16 val;
+
+	is_5ghz = chan->band == NL80211_BAND_5GHZ;
+
+	memset(t, 0, sizeof(*t));
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_CCK);
+	t->cck[0] = t->cck[1] = mt76x02_rate_power_val(val);
+	t->cck[2] = t->cck[3] = mt76x02_rate_power_val(val >> 8);
+
+	if (is_5ghz)
+		val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_OFDM_5G_6M);
+	else
+		val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_OFDM_2G_6M);
+	t->ofdm[0] = t->ofdm[1] = mt76x02_rate_power_val(val);
+	t->ofdm[2] = t->ofdm[3] = mt76x02_rate_power_val(val >> 8);
+
+	if (is_5ghz)
+		val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_OFDM_5G_24M);
+	else
+		val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_OFDM_2G_24M);
+	t->ofdm[4] = t->ofdm[5] = mt76x02_rate_power_val(val);
+	t->ofdm[6] = t->ofdm[7] = mt76x02_rate_power_val(val >> 8);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS0);
+	t->ht[0] = t->ht[1] = mt76x02_rate_power_val(val);
+	t->ht[2] = t->ht[3] = mt76x02_rate_power_val(val >> 8);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS4);
+	t->ht[4] = t->ht[5] = mt76x02_rate_power_val(val);
+	t->ht[6] = t->ht[7] = mt76x02_rate_power_val(val >> 8);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS8);
+	t->ht[8] = t->ht[9] = mt76x02_rate_power_val(val);
+	t->ht[10] = t->ht[11] = mt76x02_rate_power_val(val >> 8);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_HT_MCS12);
+	t->ht[12] = t->ht[13] = mt76x02_rate_power_val(val);
+	t->ht[14] = t->ht[15] = mt76x02_rate_power_val(val >> 8);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_VHT_MCS8);
+	if (!is_5ghz)
+		val >>= 8;
+	t->vht[0] = t->vht[1] = mt76x02_rate_power_val(val >> 8);
+}
+EXPORT_SYMBOL_GPL(mt76x2_get_rate_power);
+
+static void
+mt76x2_get_power_info_2g(struct mt76x02_dev *dev,
+			 struct mt76x2_tx_power_info *t,
+			 struct ieee80211_channel *chan,
+			 int chain, int offset)
+{
+	int channel = chan->hw_value;
+	int delta_idx;
+	u8 data[6];
+	u16 val;
+
+	if (channel < 6)
+		delta_idx = 3;
+	else if (channel < 11)
+		delta_idx = 4;
+	else
+		delta_idx = 5;
+
+	mt76x02_eeprom_copy(dev, offset, data, sizeof(data));
+
+	t->chain[chain].tssi_slope = data[0];
+	t->chain[chain].tssi_offset = data[1];
+	t->chain[chain].target_power = data[2];
+	t->chain[chain].delta =
+		mt76x02_sign_extend_optional(data[delta_idx], 7);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_RF_2G_TSSI_OFF_TXPOWER);
+	t->target_power = val >> 8;
+}
+
+static void
+mt76x2_get_power_info_5g(struct mt76x02_dev *dev,
+			 struct mt76x2_tx_power_info *t,
+			 struct ieee80211_channel *chan,
+			 int chain, int offset)
+{
+	int channel = chan->hw_value;
+	enum mt76x2_cal_channel_group group;
+	int delta_idx;
+	u16 val;
+	u8 data[5];
+
+	group = mt76x2_get_cal_channel_group(channel);
+	offset += group * MT_TX_POWER_GROUP_SIZE_5G;
+
+	if (channel >= 192)
+		delta_idx = 4;
+	else if (channel >= 184)
+		delta_idx = 3;
+	else if (channel < 44)
+		delta_idx = 3;
+	else if (channel < 52)
+		delta_idx = 4;
+	else if (channel < 58)
+		delta_idx = 3;
+	else if (channel < 98)
+		delta_idx = 4;
+	else if (channel < 106)
+		delta_idx = 3;
+	else if (channel < 116)
+		delta_idx = 4;
+	else if (channel < 130)
+		delta_idx = 3;
+	else if (channel < 149)
+		delta_idx = 4;
+	else if (channel < 157)
+		delta_idx = 3;
+	else
+		delta_idx = 4;
+
+	mt76x02_eeprom_copy(dev, offset, data, sizeof(data));
+
+	t->chain[chain].tssi_slope = data[0];
+	t->chain[chain].tssi_offset = data[1];
+	t->chain[chain].target_power = data[2];
+	t->chain[chain].delta =
+		mt76x02_sign_extend_optional(data[delta_idx], 7);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_RF_2G_RX_HIGH_GAIN);
+	t->target_power = val & 0xff;
+}
+
+void mt76x2_get_power_info(struct mt76x02_dev *dev,
+			   struct mt76x2_tx_power_info *t,
+			   struct ieee80211_channel *chan)
+{
+	u16 bw40, bw80;
+
+	memset(t, 0, sizeof(*t));
+
+	bw40 = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_DELTA_BW40);
+	bw80 = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_DELTA_BW80);
+
+	if (chan->band == NL80211_BAND_5GHZ) {
+		bw40 >>= 8;
+		mt76x2_get_power_info_5g(dev, t, chan, 0,
+					 MT_EE_TX_POWER_0_START_5G);
+		mt76x2_get_power_info_5g(dev, t, chan, 1,
+					 MT_EE_TX_POWER_1_START_5G);
+	} else {
+		mt76x2_get_power_info_2g(dev, t, chan, 0,
+					 MT_EE_TX_POWER_0_START_2G);
+		mt76x2_get_power_info_2g(dev, t, chan, 1,
+					 MT_EE_TX_POWER_1_START_2G);
+	}
+
+	if (mt76x2_tssi_enabled(dev) ||
+	    !mt76x02_field_valid(t->target_power))
+		t->target_power = t->chain[0].target_power;
+
+	t->delta_bw40 = mt76x02_rate_power_val(bw40);
+	t->delta_bw80 = mt76x02_rate_power_val(bw80);
+}
+EXPORT_SYMBOL_GPL(mt76x2_get_power_info);
+
+int mt76x2_get_temp_comp(struct mt76x02_dev *dev, struct mt76x2_temp_comp *t)
+{
+	enum nl80211_band band = dev->mphy.chandef.chan->band;
+	u16 val, slope;
+	u8 bounds;
+
+	memset(t, 0, sizeof(*t));
+
+	if (!mt76x2_temp_tx_alc_enabled(dev))
+		return -EINVAL;
+
+	if (!mt76x02_ext_pa_enabled(dev, band))
+		return -EINVAL;
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_EXT_PA_5G) >> 8;
+	t->temp_25_ref = val & 0x7f;
+	if (band == NL80211_BAND_5GHZ) {
+		slope = mt76x02_eeprom_get(dev, MT_EE_RF_TEMP_COMP_SLOPE_5G);
+		bounds = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_EXT_PA_5G);
+	} else {
+		slope = mt76x02_eeprom_get(dev, MT_EE_RF_TEMP_COMP_SLOPE_2G);
+		bounds = mt76x02_eeprom_get(dev,
+					    MT_EE_TX_POWER_DELTA_BW80) >> 8;
+	}
+
+	t->high_slope = slope & 0xff;
+	t->low_slope = slope >> 8;
+	t->lower_bound = 0 - (bounds & 0xf);
+	t->upper_bound = (bounds >> 4) & 0xf;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x2_get_temp_comp);
+
+int mt76x2_eeprom_init(struct mt76x02_dev *dev)
+{
+	int ret;
+
+	ret = mt76x2_eeprom_load(dev);
+	if (ret)
+		return ret;
+
+	mt76x02_eeprom_parse_hw_cap(dev);
+	mt76x2_eeprom_get_macaddr(dev);
+	ret = mt76_eeprom_override(&dev->mphy);
+	if (ret)
+		return ret;
+	dev->mphy.macaddr[0] &= ~BIT(1);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mt76x2_eeprom_init);
+
+MODULE_DESCRIPTION("MediaTek MT76x2 EEPROM helpers");
+MODULE_LICENSE("Dual BSD/GPL");

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/eeprom.h

@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#ifndef __MT76x2_EEPROM_H
+#define __MT76x2_EEPROM_H
+
+#include "../mt76x02_eeprom.h"
+
+enum mt76x2_cal_channel_group {
+	MT_CH_5G_JAPAN,
+	MT_CH_5G_UNII_1,
+	MT_CH_5G_UNII_2,
+	MT_CH_5G_UNII_2E_1,
+	MT_CH_5G_UNII_2E_2,
+	MT_CH_5G_UNII_3,
+	__MT_CH_MAX
+};
+
+struct mt76x2_tx_power_info {
+	u8 target_power;
+
+	s8 delta_bw40;
+	s8 delta_bw80;
+
+	struct {
+		s8 tssi_slope;
+		s8 tssi_offset;
+		s8 target_power;
+		s8 delta;
+	} chain[MT_MAX_CHAINS];
+};
+
+struct mt76x2_temp_comp {
+	u8 temp_25_ref;
+	int lower_bound; /* J */
+	int upper_bound; /* J */
+	unsigned int high_slope; /* J / dB */
+	unsigned int low_slope; /* J / dB */
+};
+
+void mt76x2_get_rate_power(struct mt76x02_dev *dev, struct mt76x02_rate_power *t,
+			   struct ieee80211_channel *chan);
+void mt76x2_get_power_info(struct mt76x02_dev *dev,
+			   struct mt76x2_tx_power_info *t,
+			   struct ieee80211_channel *chan);
+int mt76x2_get_temp_comp(struct mt76x02_dev *dev, struct mt76x2_temp_comp *t);
+void mt76x2_read_rx_gain(struct mt76x02_dev *dev);
+
+static inline bool
+mt76x2_has_ext_lna(struct mt76x02_dev *dev)
+{
+	u32 val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1);
+
+	if (dev->mphy.chandef.chan->band == NL80211_BAND_2GHZ)
+		return val & MT_EE_NIC_CONF_1_LNA_EXT_2G;
+	else
+		return val & MT_EE_NIC_CONF_1_LNA_EXT_5G;
+}
+
+static inline bool
+mt76x2_temp_tx_alc_enabled(struct mt76x02_dev *dev)
+{
+	u16 val;
+
+	val = mt76x02_eeprom_get(dev, MT_EE_TX_POWER_EXT_PA_5G);
+	if (!(val & BIT(15)))
+		return false;
+
+	return mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1) &
+	       MT_EE_NIC_CONF_1_TEMP_TX_ALC;
+}
+
+static inline bool
+mt76x2_tssi_enabled(struct mt76x02_dev *dev)
+{
+	return !mt76x2_temp_tx_alc_enabled(dev) &&
+	       (mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1) &
+		MT_EE_NIC_CONF_1_TX_ALC_EN);
+}
+
+#endif

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/init.c

@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include "mt76x2.h"
+#include "eeprom.h"
+#include "../mt76x02_phy.h"
+
+int mt76x2_set_sar_specs(struct ieee80211_hw *hw,
+			 const struct cfg80211_sar_specs *sar)
+{
+	int err = -EINVAL, power = hw->conf.power_level * 2;
+	struct mt76x02_dev *dev = hw->priv;
+	struct mt76_phy *mphy = &dev->mphy;
+
+	mutex_lock(&dev->mt76.mutex);
+	if (!cfg80211_chandef_valid(&mphy->chandef))
+		goto out;
+
+	err = mt76_init_sar_power(hw, sar);
+	if (err)
+		goto out;
+
+	dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan,
+					       power);
+	/* convert to per-chain power for 2x2 devices */
+	dev->txpower_conf -= 6;
+
+	if (test_bit(MT76_STATE_RUNNING, &mphy->state))
+		mt76x2_phy_set_txpower(dev);
+out:
+	mutex_unlock(&dev->mt76.mutex);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(mt76x2_set_sar_specs);
+
+static void
+mt76x2_set_wlan_state(struct mt76x02_dev *dev, bool enable)
+{
+	u32 val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
+
+	if (enable)
+		val |= (MT_WLAN_FUN_CTRL_WLAN_EN |
+			MT_WLAN_FUN_CTRL_WLAN_CLK_EN);
+	else
+		val &= ~(MT_WLAN_FUN_CTRL_WLAN_EN |
+			 MT_WLAN_FUN_CTRL_WLAN_CLK_EN);
+
+	mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
+	udelay(20);
+}
+
+void mt76x2_reset_wlan(struct mt76x02_dev *dev, bool enable)
+{
+	u32 val;
+
+	if (!enable)
+		goto out;
+
+	val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
+
+	val &= ~MT_WLAN_FUN_CTRL_FRC_WL_ANT_SEL;
+
+	if (val & MT_WLAN_FUN_CTRL_WLAN_EN) {
+		val |= MT_WLAN_FUN_CTRL_WLAN_RESET_RF;
+		mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
+		udelay(20);
+
+		val &= ~MT_WLAN_FUN_CTRL_WLAN_RESET_RF;
+	}
+
+	mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
+	udelay(20);
+
+out:
+	mt76x2_set_wlan_state(dev, enable);
+}
+EXPORT_SYMBOL_GPL(mt76x2_reset_wlan);
+
+void mt76_write_mac_initvals(struct mt76x02_dev *dev)
+{
+#define DEFAULT_PROT_CFG_CCK				\
+	(FIELD_PREP(MT_PROT_CFG_RATE, 0x3) |		\
+	 FIELD_PREP(MT_PROT_CFG_NAV, 1) |		\
+	 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) |	\
+	 MT_PROT_CFG_RTS_THRESH)
+
+#define DEFAULT_PROT_CFG_OFDM				\
+	(FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) |		\
+	 FIELD_PREP(MT_PROT_CFG_NAV, 1) |			\
+	 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) |	\
+	 MT_PROT_CFG_RTS_THRESH)
+
+#define DEFAULT_PROT_CFG_20				\
+	(FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) |		\
+	 FIELD_PREP(MT_PROT_CFG_CTRL, 1) |		\
+	 FIELD_PREP(MT_PROT_CFG_NAV, 1) |			\
+	 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x17))
+
+#define DEFAULT_PROT_CFG_40				\
+	(FIELD_PREP(MT_PROT_CFG_RATE, 0x2084) |		\
+	 FIELD_PREP(MT_PROT_CFG_CTRL, 1) |		\
+	 FIELD_PREP(MT_PROT_CFG_NAV, 1) |			\
+	 FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f))
+
+	static const struct mt76_reg_pair vals[] = {
+		/* Copied from MediaTek reference source */
+		{ MT_PBF_SYS_CTRL,		0x00080c00 },
+		{ MT_PBF_CFG,			0x1efebcff },
+		{ MT_FCE_PSE_CTRL,		0x00000001 },
+		{ MT_MAC_SYS_CTRL,		0x00000000 },
+		{ MT_MAX_LEN_CFG,		0x003e3f00 },
+		{ MT_AMPDU_MAX_LEN_20M1S,	0xaaa99887 },
+		{ MT_AMPDU_MAX_LEN_20M2S,	0x000000aa },
+		{ MT_XIFS_TIME_CFG,		0x33a40d0a },
+		{ MT_BKOFF_SLOT_CFG,		0x00000209 },
+		{ MT_TBTT_SYNC_CFG,		0x00422010 },
+		{ MT_PWR_PIN_CFG,		0x00000000 },
+		{ 0x1238,			0x001700c8 },
+		{ MT_TX_SW_CFG0,		0x00101001 },
+		{ MT_TX_SW_CFG1,		0x00010000 },
+		{ MT_TX_SW_CFG2,		0x00000000 },
+		{ MT_TXOP_CTRL_CFG,		0x0400583f },
+		{ MT_TX_RTS_CFG,		0x00ffff20 },
+		{ MT_TX_TIMEOUT_CFG,		0x000a2290 },
+		{ MT_TX_RETRY_CFG,		0x47f01f0f },
+		{ MT_EXP_ACK_TIME,		0x002c00dc },
+		{ MT_TX_PROT_CFG6,		0xe3f42004 },
+		{ MT_TX_PROT_CFG7,		0xe3f42084 },
+		{ MT_TX_PROT_CFG8,		0xe3f42104 },
+		{ MT_PIFS_TX_CFG,		0x00060fff },
+		{ MT_RX_FILTR_CFG,		0x00015f97 },
+		{ MT_LEGACY_BASIC_RATE,		0x0000017f },
+		{ MT_HT_BASIC_RATE,		0x00004003 },
+		{ MT_PN_PAD_MODE,		0x00000003 },
+		{ MT_TXOP_HLDR_ET,		0x00000002 },
+		{ 0xa44,			0x00000000 },
+		{ MT_HEADER_TRANS_CTRL_REG,	0x00000000 },
+		{ MT_TSO_CTRL,			0x00000000 },
+		{ MT_AUX_CLK_CFG,		0x00000000 },
+		{ MT_DACCLK_EN_DLY_CFG,		0x00000000 },
+		{ MT_TX_ALC_CFG_4,		0x00000000 },
+		{ MT_TX_ALC_VGA3,		0x00000000 },
+		{ MT_TX_PWR_CFG_0,		0x3a3a3a3a },
+		{ MT_TX_PWR_CFG_1,		0x3a3a3a3a },
+		{ MT_TX_PWR_CFG_2,		0x3a3a3a3a },
+		{ MT_TX_PWR_CFG_3,		0x3a3a3a3a },
+		{ MT_TX_PWR_CFG_4,		0x3a3a3a3a },
+		{ MT_TX_PWR_CFG_7,		0x3a3a3a3a },
+		{ MT_TX_PWR_CFG_8,		0x0000003a },
+		{ MT_TX_PWR_CFG_9,		0x0000003a },
+		{ MT_EFUSE_CTRL,		0x0000d000 },
+		{ MT_PAUSE_ENABLE_CONTROL1,	0x0000000a },
+		{ MT_FCE_WLAN_FLOW_CONTROL1,	0x60401c18 },
+		{ MT_WPDMA_DELAY_INT_CFG,	0x94ff0000 },
+		{ MT_TX_SW_CFG3,		0x00000004 },
+		{ MT_HT_FBK_TO_LEGACY,		0x00001818 },
+		{ MT_VHT_HT_FBK_CFG1,		0xedcba980 },
+		{ MT_PROT_AUTO_TX_CFG,		0x00830083 },
+		{ MT_HT_CTRL_CFG,		0x000001ff },
+		{ MT_TX_LINK_CFG,		0x00001020 },
+	};
+	struct mt76_reg_pair prot_vals[] = {
+		{ MT_CCK_PROT_CFG,		DEFAULT_PROT_CFG_CCK },
+		{ MT_OFDM_PROT_CFG,		DEFAULT_PROT_CFG_OFDM },
+		{ MT_MM20_PROT_CFG,		DEFAULT_PROT_CFG_20 },
+		{ MT_MM40_PROT_CFG,		DEFAULT_PROT_CFG_40 },
+		{ MT_GF20_PROT_CFG,		DEFAULT_PROT_CFG_20 },
+		{ MT_GF40_PROT_CFG,		DEFAULT_PROT_CFG_40 },
+	};
+
+	mt76_wr_rp(dev, 0, vals, ARRAY_SIZE(vals));
+	mt76_wr_rp(dev, 0, prot_vals, ARRAY_SIZE(prot_vals));
+}
+EXPORT_SYMBOL_GPL(mt76_write_mac_initvals);
+
+void mt76x2_init_txpower(struct mt76x02_dev *dev,
+			 struct ieee80211_supported_band *sband)
+{
+	struct ieee80211_channel *chan;
+	struct mt76x2_tx_power_info txp;
+	struct mt76x02_rate_power t = {};
+	int i;
+
+	for (i = 0; i < sband->n_channels; i++) {
+		chan = &sband->channels[i];
+
+		mt76x2_get_power_info(dev, &txp, chan);
+		mt76x2_get_rate_power(dev, &t, chan);
+
+		chan->orig_mpwr = mt76x02_get_max_rate_power(&t) +
+				  txp.target_power;
+		chan->orig_mpwr = DIV_ROUND_UP(chan->orig_mpwr, 2);
+
+		/* convert to combined output power on 2x2 devices */
+		chan->orig_mpwr += 3;
+		chan->max_power = min_t(int, chan->max_reg_power,
+					chan->orig_mpwr);
+	}
+}
+EXPORT_SYMBOL_GPL(mt76x2_init_txpower);

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/mac.c

@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include "mt76x2.h"
+
+void mt76x2_mac_stop(struct mt76x02_dev *dev, bool force)
+{
+	bool stopped = false;
+	u32 rts_cfg;
+	int i;
+
+	mt76_clear(dev, MT_TXOP_CTRL_CFG, MT_TXOP_ED_CCA_EN);
+	mt76_clear(dev, MT_TXOP_HLDR_ET, MT_TXOP_HLDR_TX40M_BLK_EN);
+
+	mt76_wr(dev, MT_MAC_SYS_CTRL, 0);
+
+	rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);
+	mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);
+
+	/* Wait for MAC to become idle */
+	for (i = 0; i < 300; i++) {
+		if ((mt76_rr(dev, MT_MAC_STATUS) &
+		     (MT_MAC_STATUS_RX | MT_MAC_STATUS_TX)) ||
+		    mt76_rr(dev, MT_BBP(IBI, 12))) {
+			udelay(1);
+			continue;
+		}
+
+		stopped = true;
+		break;
+	}
+
+	if (force && !stopped) {
+		mt76_set(dev, MT_BBP(CORE, 4), BIT(1));
+		mt76_clear(dev, MT_BBP(CORE, 4), BIT(1));
+
+		mt76_set(dev, MT_BBP(CORE, 4), BIT(0));
+		mt76_clear(dev, MT_BBP(CORE, 4), BIT(0));
+	}
+
+	mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);
+}
+EXPORT_SYMBOL_GPL(mt76x2_mac_stop);

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/mac.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#ifndef __MT76x2_MAC_H
+#define __MT76x2_MAC_H
+
+#include "mt76x2.h"
+
+struct mt76x02_dev;
+struct mt76x2_sta;
+struct mt76x02_vif;
+
+void mt76x2_mac_stop(struct mt76x02_dev *dev, bool force);
+
+static inline void mt76x2_mac_resume(struct mt76x02_dev *dev)
+{
+	mt76_wr(dev, MT_MAC_SYS_CTRL,
+		MT_MAC_SYS_CTRL_ENABLE_TX |
+		MT_MAC_SYS_CTRL_ENABLE_RX);
+}
+
+#endif

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/mcu.c

@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+
+#include "mt76x2.h"
+#include "mcu.h"
+#include "eeprom.h"
+
+int mt76x2_mcu_set_channel(struct mt76x02_dev *dev, u8 channel, u8 bw,
+			   u8 bw_index, bool scan)
+{
+	struct {
+		u8 idx;
+		u8 scan;
+		u8 bw;
+		u8 _pad0;
+
+		__le16 chainmask;
+		u8 ext_chan;
+		u8 _pad1;
+
+	} __packed __aligned(4) msg = {
+		.idx = channel,
+		.scan = scan,
+		.bw = bw,
+		.chainmask = cpu_to_le16(dev->mphy.chainmask),
+	};
+
+	/* first set the channel without the extension channel info */
+	mt76_mcu_send_msg(&dev->mt76, CMD_SWITCH_CHANNEL_OP, &msg,
+			  sizeof(msg), true);
+
+	usleep_range(5000, 10000);
+
+	msg.ext_chan = 0xe0 + bw_index;
+	return mt76_mcu_send_msg(&dev->mt76, CMD_SWITCH_CHANNEL_OP, &msg,
+				 sizeof(msg), true);
+}
+EXPORT_SYMBOL_GPL(mt76x2_mcu_set_channel);
+
+int mt76x2_mcu_load_cr(struct mt76x02_dev *dev, u8 type, u8 temp_level,
+		       u8 channel)
+{
+	struct {
+		u8 cr_mode;
+		u8 temp;
+		u8 ch;
+		u8 _pad0;
+
+		__le32 cfg;
+	} __packed __aligned(4) msg = {
+		.cr_mode = type,
+		.temp = temp_level,
+		.ch = channel,
+	};
+	u32 val;
+
+	val = BIT(31);
+	val |= (mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_0) >> 8) & 0x00ff;
+	val |= (mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1) << 8) & 0xff00;
+	msg.cfg = cpu_to_le32(val);
+
+	/* first set the channel without the extension channel info */
+	return mt76_mcu_send_msg(&dev->mt76, CMD_LOAD_CR, &msg, sizeof(msg),
+				 true);
+}
+EXPORT_SYMBOL_GPL(mt76x2_mcu_load_cr);
+
+int mt76x2_mcu_init_gain(struct mt76x02_dev *dev, u8 channel, u32 gain,
+			 bool force)
+{
+	struct {
+		__le32 channel;
+		__le32 gain_val;
+	} __packed __aligned(4) msg = {
+		.channel = cpu_to_le32(channel),
+		.gain_val = cpu_to_le32(gain),
+	};
+
+	if (force)
+		msg.channel |= cpu_to_le32(BIT(31));
+
+	return mt76_mcu_send_msg(&dev->mt76, CMD_INIT_GAIN_OP, &msg,
+				 sizeof(msg), true);
+}
+EXPORT_SYMBOL_GPL(mt76x2_mcu_init_gain);
+
+int mt76x2_mcu_tssi_comp(struct mt76x02_dev *dev,
+			 struct mt76x2_tssi_comp *tssi_data)
+{
+	struct {
+		__le32 id;
+		struct mt76x2_tssi_comp data;
+	} __packed __aligned(4) msg = {
+		.id = cpu_to_le32(MCU_CAL_TSSI_COMP),
+		.data = *tssi_data,
+	};
+
+	return mt76_mcu_send_msg(&dev->mt76, CMD_CALIBRATION_OP, &msg,
+				 sizeof(msg), true);
+}
+EXPORT_SYMBOL_GPL(mt76x2_mcu_tssi_comp);

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/mcu.h

@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#ifndef __MT76x2_MCU_H
+#define __MT76x2_MCU_H
+
+#include "../mt76x02_mcu.h"
+
+/* Register definitions */
+#define MT_MCU_CPU_CTL			0x0704
+#define MT_MCU_CLOCK_CTL		0x0708
+#define MT_MCU_PCIE_REMAP_BASE1		0x0740
+#define MT_MCU_PCIE_REMAP_BASE2		0x0744
+#define MT_MCU_PCIE_REMAP_BASE3		0x0748
+
+#define MT_MCU_ROM_PATCH_OFFSET		0x80000
+#define MT_MCU_ROM_PATCH_ADDR		0x90000
+
+#define MT_MCU_ILM_OFFSET		0x80000
+
+#define MT_MCU_DLM_OFFSET		0x100000
+#define MT_MCU_DLM_ADDR			0x90000
+#define MT_MCU_DLM_ADDR_E3		0x90800
+
+enum mcu_calibration {
+	MCU_CAL_R = 1,
+	MCU_CAL_TEMP_SENSOR,
+	MCU_CAL_RXDCOC,
+	MCU_CAL_RC,
+	MCU_CAL_SX_LOGEN,
+	MCU_CAL_LC,
+	MCU_CAL_TX_LOFT,
+	MCU_CAL_TXIQ,
+	MCU_CAL_TSSI,
+	MCU_CAL_TSSI_COMP,
+	MCU_CAL_DPD,
+	MCU_CAL_RXIQC_FI,
+	MCU_CAL_RXIQC_FD,
+	MCU_CAL_PWRON,
+	MCU_CAL_TX_SHAPING,
+};
+
+enum mt76x2_mcu_cr_mode {
+	MT_RF_CR,
+	MT_BBP_CR,
+	MT_RF_BBP_CR,
+	MT_HL_TEMP_CR_UPDATE,
+};
+
+struct mt76x2_tssi_comp {
+	u8 pa_mode;
+	u8 cal_mode;
+	u16 pad;
+
+	u8 slope0;
+	u8 slope1;
+	u8 offset0;
+	u8 offset1;
+} __packed __aligned(4);
+
+int mt76x2_mcu_tssi_comp(struct mt76x02_dev *dev,
+			 struct mt76x2_tssi_comp *tssi_data);
+int mt76x2_mcu_init_gain(struct mt76x02_dev *dev, u8 channel, u32 gain,
+			 bool force);
+
+#endif

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h

@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#ifndef __MT76x2_H
+#define __MT76x2_H
+
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/bitops.h>
+
+#define MT7662_FIRMWARE		"mt7662.bin"
+#define MT7662_ROM_PATCH	"mt7662_rom_patch.bin"
+#define MT7662_EEPROM_SIZE	512
+
+#include "../mt76x02.h"
+#include "mac.h"
+
+static inline bool is_mt7612(struct mt76x02_dev *dev)
+{
+	return mt76_chip(&dev->mt76) == 0x7612;
+}
+
+static inline bool mt76x2_channel_silent(struct mt76x02_dev *dev)
+{
+	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
+
+	return ((chan->flags & IEEE80211_CHAN_RADAR) &&
+		chan->dfs_state != NL80211_DFS_AVAILABLE);
+}
+
+extern const struct ieee80211_ops mt76x2_ops;
+
+int mt76x2_register_device(struct mt76x02_dev *dev);
+int mt76x2_resume_device(struct mt76x02_dev *dev);
+
+int mt76x2_set_sar_specs(struct ieee80211_hw *hw,
+			 const struct cfg80211_sar_specs *sar);
+void mt76x2_phy_power_on(struct mt76x02_dev *dev);
+void mt76x2_stop_hardware(struct mt76x02_dev *dev);
+int mt76x2_eeprom_init(struct mt76x02_dev *dev);
+int mt76x2_apply_calibration_data(struct mt76x02_dev *dev, int channel);
+int mt76x2e_set_channel(struct mt76_phy *phy);
+int mt76x2u_set_channel(struct mt76_phy *phy);
+
+void mt76x2_phy_set_antenna(struct mt76x02_dev *dev);
+int mt76x2_phy_start(struct mt76x02_dev *dev);
+int mt76x2_phy_set_channel(struct mt76x02_dev *dev,
+			   struct cfg80211_chan_def *chandef);
+void mt76x2_phy_calibrate(struct work_struct *work);
+void mt76x2_phy_set_txpower(struct mt76x02_dev *dev);
+
+int mt76x2_mcu_init(struct mt76x02_dev *dev);
+int mt76x2_mcu_set_channel(struct mt76x02_dev *dev, u8 channel, u8 bw,
+			   u8 bw_index, bool scan);
+int mt76x2_mcu_load_cr(struct mt76x02_dev *dev, u8 type, u8 temp_level,
+		       u8 channel);
+
+void mt76x2_cleanup(struct mt76x02_dev *dev);
+
+int mt76x2_mac_reset(struct mt76x02_dev *dev, bool hard);
+void mt76x2_reset_wlan(struct mt76x02_dev *dev, bool enable);
+void mt76x2_init_txpower(struct mt76x02_dev *dev,
+			 struct ieee80211_supported_band *sband);
+void mt76_write_mac_initvals(struct mt76x02_dev *dev);
+
+void mt76x2_phy_tssi_compensate(struct mt76x02_dev *dev);
+void mt76x2_phy_set_txpower_regs(struct mt76x02_dev *dev,
+				 enum nl80211_band band);
+void mt76x2_configure_tx_delay(struct mt76x02_dev *dev,
+			       enum nl80211_band band, u8 bw);
+void mt76x2_apply_gain_adj(struct mt76x02_dev *dev);
+void mt76x2_phy_update_channel_gain(struct mt76x02_dev *dev);
+
+#endif

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2u.h

@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#ifndef __MT76x2U_H
+#define __MT76x2U_H
+
+#include <linux/device.h>
+
+#include "mt76x2.h"
+#include "mcu.h"
+
+#define MT7612U_EEPROM_SIZE		512
+
+#define MT_USB_AGGR_SIZE_LIMIT		21 /* 1024B unit */
+#define MT_USB_AGGR_TIMEOUT		0x80 /* 33ns unit */
+
+extern const struct ieee80211_ops mt76x2u_ops;
+
+int mt76x2u_register_device(struct mt76x02_dev *dev);
+int mt76x2u_init_hardware(struct mt76x02_dev *dev);
+void mt76x2u_cleanup(struct mt76x02_dev *dev);
+void mt76x2u_stop_hw(struct mt76x02_dev *dev);
+
+int mt76x2u_mac_reset(struct mt76x02_dev *dev);
+int mt76x2u_mac_stop(struct mt76x02_dev *dev);
+
+int mt76x2u_phy_set_channel(struct mt76x02_dev *dev,
+			    struct cfg80211_chan_def *chandef);
+void mt76x2u_phy_calibrate(struct work_struct *work);
+
+void mt76x2u_mcu_complete_urb(struct urb *urb);
+int mt76x2u_mcu_init(struct mt76x02_dev *dev);
+int mt76x2u_mcu_fw_init(struct mt76x02_dev *dev);
+
+int mt76x2u_alloc_queues(struct mt76x02_dev *dev);
+void mt76x2u_queues_deinit(struct mt76x02_dev *dev);
+void mt76x2u_stop_queues(struct mt76x02_dev *dev);
+int mt76x2u_skb_dma_info(struct sk_buff *skb, enum dma_msg_port port,
+			 u32 flags);
+
+#endif /* __MT76x2U_H */

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c

@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "mt76x2.h"
+
+static const struct pci_device_id mt76x2e_device_table[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7662) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7612) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MEDIATEK, 0x7602) },
+	{ },
+};
+
+static int
+mt76x2e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	static const struct mt76_driver_ops drv_ops = {
+		.txwi_size = sizeof(struct mt76x02_txwi),
+		.drv_flags = MT_DRV_TX_ALIGNED4_SKBS |
+			     MT_DRV_SW_RX_AIRTIME |
+			     MT_DRV_IGNORE_TXS_FAILED,
+		.survey_flags = SURVEY_INFO_TIME_TX,
+		.update_survey = mt76x02_update_channel,
+		.set_channel = mt76x2e_set_channel,
+		.tx_prepare_skb = mt76x02_tx_prepare_skb,
+		.tx_complete_skb = mt76x02_tx_complete_skb,
+		.rx_skb = mt76x02_queue_rx_skb,
+		.rx_poll_complete = mt76x02_rx_poll_complete,
+		.sta_ps = mt76x02_sta_ps,
+		.sta_add = mt76x02_sta_add,
+		.sta_remove = mt76x02_sta_remove,
+	};
+	struct mt76x02_dev *dev;
+	struct mt76_dev *mdev;
+	int ret;
+
+	ret = pcim_enable_device(pdev);
+	if (ret)
+		return ret;
+
+	ret = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
+	if (ret)
+		return ret;
+
+	pci_set_master(pdev);
+
+	ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	mdev = mt76_alloc_device(&pdev->dev, sizeof(*dev), &mt76x2_ops,
+				 &drv_ops);
+	if (!mdev)
+		return -ENOMEM;
+
+	dev = container_of(mdev, struct mt76x02_dev, mt76);
+	mt76_mmio_init(mdev, pcim_iomap_table(pdev)[0]);
+	mt76x2_reset_wlan(dev, false);
+
+	mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
+	dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
+
+	mt76_wr(dev, MT_INT_MASK_CSR, 0);
+
+	ret = devm_request_irq(mdev->dev, pdev->irq, mt76x02_irq_handler,
+			       IRQF_SHARED, KBUILD_MODNAME, dev);
+	if (ret)
+		goto error;
+
+	ret = mt76x2_register_device(dev);
+	if (ret)
+		goto error;
+
+	/* Fix up ASPM configuration */
+
+	/* RG_SSUSB_G1_CDR_BIR_LTR = 0x9 */
+	mt76_rmw_field(dev, 0x15a10, 0x1f << 16, 0x9);
+
+	/* RG_SSUSB_G1_CDR_BIC_LTR = 0xf */
+	mt76_rmw_field(dev, 0x15a0c, 0xfU << 28, 0xf);
+
+	/* RG_SSUSB_CDR_BR_PE1D = 0x3 */
+	mt76_rmw_field(dev, 0x15c58, 0x3 << 6, 0x3);
+
+	mt76_pci_disable_aspm(pdev);
+
+	return 0;
+
+error:
+	mt76_free_device(&dev->mt76);
+
+	return ret;
+}
+
+static void
+mt76x2e_remove(struct pci_dev *pdev)
+{
+	struct mt76_dev *mdev = pci_get_drvdata(pdev);
+	struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
+
+	mt76_unregister_device(mdev);
+	mt76x2_cleanup(dev);
+	mt76_free_device(mdev);
+}
+
+static int __maybe_unused
+mt76x2e_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct mt76_dev *mdev = pci_get_drvdata(pdev);
+	int i, err;
+
+	napi_disable(&mdev->tx_napi);
+	tasklet_kill(&mdev->pre_tbtt_tasklet);
+	mt76_worker_disable(&mdev->tx_worker);
+
+	mt76_for_each_q_rx(mdev, i)
+		napi_disable(&mdev->napi[i]);
+
+	pci_enable_wake(pdev, pci_choose_state(pdev, state), true);
+	pci_save_state(pdev);
+	err = pci_set_power_state(pdev, pci_choose_state(pdev, state));
+	if (err)
+		goto restore;
+
+	return 0;
+
+restore:
+	mt76_for_each_q_rx(mdev, i)
+		napi_enable(&mdev->napi[i]);
+	napi_enable(&mdev->tx_napi);
+
+	return err;
+}
+
+static int __maybe_unused
+mt76x2e_resume(struct pci_dev *pdev)
+{
+	struct mt76_dev *mdev = pci_get_drvdata(pdev);
+	struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76);
+	int i, err;
+
+	err = pci_set_power_state(pdev, PCI_D0);
+	if (err)
+		return err;
+
+	pci_restore_state(pdev);
+
+	mt76_worker_enable(&mdev->tx_worker);
+
+	mt76_for_each_q_rx(mdev, i) {
+		napi_enable(&mdev->napi[i]);
+	}
+	napi_enable(&mdev->tx_napi);
+
+	local_bh_disable();
+	mt76_for_each_q_rx(mdev, i) {
+		napi_schedule(&mdev->napi[i]);
+	}
+	napi_schedule(&mdev->tx_napi);
+	local_bh_enable();
+
+	return mt76x2_resume_device(dev);
+}
+
+MODULE_DEVICE_TABLE(pci, mt76x2e_device_table);
+MODULE_FIRMWARE(MT7662_FIRMWARE);
+MODULE_FIRMWARE(MT7662_ROM_PATCH);
+MODULE_DESCRIPTION("MediaTek MT76x2E (PCIe) wireless driver");
+MODULE_LICENSE("Dual BSD/GPL");
+
+static struct pci_driver mt76pci_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= mt76x2e_device_table,
+	.probe		= mt76x2e_probe,
+	.remove		= mt76x2e_remove,
+#ifdef CONFIG_PM
+	.suspend	= mt76x2e_suspend,
+	.resume		= mt76x2e_resume,
+#endif /* CONFIG_PM */
+};
+
+module_pci_driver(mt76pci_driver);

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c

@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/delay.h>
+#include "mt76x2.h"
+#include "eeprom.h"
+#include "mcu.h"
+#include "../mt76x02_mac.h"
+
+static void
+mt76x2_mac_pbf_init(struct mt76x02_dev *dev)
+{
+	u32 val;
+
+	val = MT_PBF_SYS_CTRL_MCU_RESET |
+	      MT_PBF_SYS_CTRL_DMA_RESET |
+	      MT_PBF_SYS_CTRL_MAC_RESET |
+	      MT_PBF_SYS_CTRL_PBF_RESET |
+	      MT_PBF_SYS_CTRL_ASY_RESET;
+
+	mt76_set(dev, MT_PBF_SYS_CTRL, val);
+	mt76_clear(dev, MT_PBF_SYS_CTRL, val);
+
+	mt76_wr(dev, MT_PBF_TX_MAX_PCNT, 0xefef3f1f);
+	mt76_wr(dev, MT_PBF_RX_MAX_PCNT, 0xfebf);
+}
+
+static void
+mt76x2_fixup_xtal(struct mt76x02_dev *dev)
+{
+	u16 eep_val;
+	s8 offset = 0;
+
+	eep_val = mt76x02_eeprom_get(dev, MT_EE_XTAL_TRIM_2);
+
+	offset = eep_val & 0x7f;
+	if ((eep_val & 0xff) == 0xff)
+		offset = 0;
+	else if (eep_val & 0x80)
+		offset = 0 - offset;
+
+	eep_val >>= 8;
+	if (eep_val == 0x00 || eep_val == 0xff) {
+		eep_val = mt76x02_eeprom_get(dev, MT_EE_XTAL_TRIM_1);
+		eep_val &= 0xff;
+
+		if (eep_val == 0x00 || eep_val == 0xff)
+			eep_val = 0x14;
+	}
+
+	eep_val &= 0x7f;
+	mt76_rmw_field(dev, MT_XO_CTRL5, MT_XO_CTRL5_C2_VAL, eep_val + offset);
+	mt76_set(dev, MT_XO_CTRL6, MT_XO_CTRL6_C2_CTRL);
+
+	eep_val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2);
+	switch (FIELD_GET(MT_EE_NIC_CONF_2_XTAL_OPTION, eep_val)) {
+	case 0:
+		mt76_wr(dev, MT_XO_CTRL7, 0x5c1fee80);
+		break;
+	case 1:
+		mt76_wr(dev, MT_XO_CTRL7, 0x5c1feed0);
+		break;
+	default:
+		break;
+	}
+}
+
+int mt76x2_mac_reset(struct mt76x02_dev *dev, bool hard)
+{
+	const u8 *macaddr = dev->mphy.macaddr;
+	u32 val;
+	int i, k;
+
+	if (!mt76x02_wait_for_mac(&dev->mt76))
+		return -ETIMEDOUT;
+
+	val = mt76_rr(dev, MT_WPDMA_GLO_CFG);
+
+	val &= ~(MT_WPDMA_GLO_CFG_TX_DMA_EN |
+		 MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
+		 MT_WPDMA_GLO_CFG_RX_DMA_EN |
+		 MT_WPDMA_GLO_CFG_RX_DMA_BUSY |
+		 MT_WPDMA_GLO_CFG_DMA_BURST_SIZE);
+	val |= FIELD_PREP(MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 3);
+
+	mt76_wr(dev, MT_WPDMA_GLO_CFG, val);
+
+	mt76x2_mac_pbf_init(dev);
+	mt76_write_mac_initvals(dev);
+	mt76x2_fixup_xtal(dev);
+
+	mt76_clear(dev, MT_MAC_SYS_CTRL,
+		   MT_MAC_SYS_CTRL_RESET_CSR |
+		   MT_MAC_SYS_CTRL_RESET_BBP);
+
+	if (is_mt7612(dev))
+		mt76_clear(dev, MT_COEXCFG0, MT_COEXCFG0_COEX_EN);
+
+	mt76_set(dev, MT_EXT_CCA_CFG, 0x0000f000);
+	mt76_clear(dev, MT_TX_ALC_CFG_4, BIT(31));
+
+	mt76_wr(dev, MT_RF_BYPASS_0, 0x06000000);
+	mt76_wr(dev, MT_RF_SETTING_0, 0x08800000);
+	usleep_range(5000, 10000);
+	mt76_wr(dev, MT_RF_BYPASS_0, 0x00000000);
+
+	mt76_wr(dev, MT_MCU_CLOCK_CTL, 0x1401);
+	mt76_clear(dev, MT_FCE_L2_STUFF, MT_FCE_L2_STUFF_WR_MPDU_LEN_EN);
+
+	mt76x02_mac_setaddr(dev, macaddr);
+	mt76x02e_init_beacon_config(dev);
+	if (!hard)
+		return 0;
+
+	for (i = 0; i < 256 / 32; i++)
+		mt76_wr(dev, MT_WCID_DROP_BASE + i * 4, 0);
+
+	for (i = 0; i < 256; i++) {
+		mt76x02_mac_wcid_setup(dev, i, 0, NULL);
+		mt76_wr(dev, MT_WCID_TX_RATE(i), 0);
+		mt76_wr(dev, MT_WCID_TX_RATE(i) + 4, 0);
+	}
+
+	for (i = 0; i < MT_MAX_VIFS; i++)
+		mt76x02_mac_wcid_setup(dev, MT_VIF_WCID(i), i, NULL);
+
+	for (i = 0; i < 16; i++)
+		for (k = 0; k < 4; k++)
+			mt76x02_mac_shared_key_setup(dev, i, k, NULL);
+
+	for (i = 0; i < 16; i++)
+		mt76_rr(dev, MT_TX_STAT_FIFO);
+
+	mt76x02_set_tx_ackto(dev);
+
+	return 0;
+}
+
+static void
+mt76x2_power_on_rf_patch(struct mt76x02_dev *dev)
+{
+	mt76_set(dev, 0x10130, BIT(0) | BIT(16));
+	udelay(1);
+
+	mt76_clear(dev, 0x1001c, 0xff);
+	mt76_set(dev, 0x1001c, 0x30);
+
+	mt76_wr(dev, 0x10014, 0x484f);
+	udelay(1);
+
+	mt76_set(dev, 0x10130, BIT(17));
+	udelay(125);
+
+	mt76_clear(dev, 0x10130, BIT(16));
+	udelay(50);
+
+	mt76_set(dev, 0x1014c, BIT(19) | BIT(20));
+}
+
+static void
+mt76x2_power_on_rf(struct mt76x02_dev *dev, int unit)
+{
+	int shift = unit ? 8 : 0;
+
+	/* Enable RF BG */
+	mt76_set(dev, 0x10130, BIT(0) << shift);
+	udelay(10);
+
+	/* Enable RFDIG LDO/AFE/ABB/ADDA */
+	mt76_set(dev, 0x10130, (BIT(1) | BIT(3) | BIT(4) | BIT(5)) << shift);
+	udelay(10);
+
+	/* Switch RFDIG power to internal LDO */
+	mt76_clear(dev, 0x10130, BIT(2) << shift);
+	udelay(10);
+
+	mt76x2_power_on_rf_patch(dev);
+
+	mt76_set(dev, 0x530, 0xf);
+}
+
+static void
+mt76x2_power_on(struct mt76x02_dev *dev)
+{
+	u32 val;
+
+	/* Turn on WL MTCMOS */
+	mt76_set(dev, MT_WLAN_MTC_CTRL, MT_WLAN_MTC_CTRL_MTCMOS_PWR_UP);
+
+	val = MT_WLAN_MTC_CTRL_STATE_UP |
+	      MT_WLAN_MTC_CTRL_PWR_ACK |
+	      MT_WLAN_MTC_CTRL_PWR_ACK_S;
+
+	mt76_poll(dev, MT_WLAN_MTC_CTRL, val, val, 1000);
+
+	mt76_clear(dev, MT_WLAN_MTC_CTRL, 0x7f << 16);
+	udelay(10);
+
+	mt76_clear(dev, MT_WLAN_MTC_CTRL, 0xf << 24);
+	udelay(10);
+
+	mt76_set(dev, MT_WLAN_MTC_CTRL, 0xf << 24);
+	mt76_clear(dev, MT_WLAN_MTC_CTRL, 0xfff);
+
+	/* Turn on AD/DA power down */
+	mt76_clear(dev, 0x11204, BIT(3));
+
+	/* WLAN function enable */
+	mt76_set(dev, 0x10080, BIT(0));
+
+	/* Release BBP software reset */
+	mt76_clear(dev, 0x10064, BIT(18));
+
+	mt76x2_power_on_rf(dev, 0);
+	mt76x2_power_on_rf(dev, 1);
+}
+
+int mt76x2_resume_device(struct mt76x02_dev *dev)
+{
+	int err;
+
+	mt76x02_dma_disable(dev);
+	mt76x2_reset_wlan(dev, true);
+	mt76x2_power_on(dev);
+
+	err = mt76x2_mac_reset(dev, true);
+	if (err)
+		return err;
+
+	mt76x02_mac_start(dev);
+
+	return mt76x2_mcu_init(dev);
+}
+
+static int mt76x2_init_hardware(struct mt76x02_dev *dev)
+{
+	int ret;
+
+	mt76x02_dma_disable(dev);
+	mt76x2_reset_wlan(dev, true);
+	mt76x2_power_on(dev);
+
+	ret = mt76x2_eeprom_init(dev);
+	if (ret)
+		return ret;
+
+	ret = mt76x2_mac_reset(dev, true);
+	if (ret)
+		return ret;
+
+	dev->mt76.rxfilter = mt76_rr(dev, MT_RX_FILTR_CFG);
+
+	ret = mt76x02_dma_init(dev);
+	if (ret)
+		return ret;
+
+	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
+	mt76x02_mac_start(dev);
+
+	ret = mt76x2_mcu_init(dev);
+	if (ret)
+		return ret;
+
+	mt76x2_mac_stop(dev, false);
+
+	return 0;
+}
+
+void mt76x2_stop_hardware(struct mt76x02_dev *dev)
+{
+	cancel_delayed_work_sync(&dev->cal_work);
+	cancel_delayed_work_sync(&dev->mphy.mac_work);
+	cancel_delayed_work_sync(&dev->wdt_work);
+	clear_bit(MT76_RESTART, &dev->mphy.state);
+	mt76x02_mcu_set_radio_state(dev, false);
+	mt76x2_mac_stop(dev, false);
+}
+
+void mt76x2_cleanup(struct mt76x02_dev *dev)
+{
+	tasklet_disable(&dev->dfs_pd.dfs_tasklet);
+	tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
+	mt76x2_stop_hardware(dev);
+	mt76_dma_cleanup(&dev->mt76);
+	mt76x02_mcu_cleanup(dev);
+}
+
+int mt76x2_register_device(struct mt76x02_dev *dev)
+{
+	int ret;
+
+	INIT_DELAYED_WORK(&dev->cal_work, mt76x2_phy_calibrate);
+	ret = mt76x02_init_device(dev);
+	if (ret)
+		return ret;
+
+	ret = mt76x2_init_hardware(dev);
+	if (ret)
+		return ret;
+
+	mt76x02_config_mac_addr_list(dev);
+
+	ret = mt76_register_device(&dev->mt76, true, mt76x02_rates,
+				   ARRAY_SIZE(mt76x02_rates));
+	if (ret)
+		goto fail;
+
+	mt76x02_init_debugfs(dev);
+	mt76x2_init_txpower(dev, &dev->mphy.sband_2g.sband);
+	mt76x2_init_txpower(dev, &dev->mphy.sband_5g.sband);
+
+	return 0;
+
+fail:
+	mt76x2_stop_hardware(dev);
+	return ret;
+}
+

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c

@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include "mt76x2.h"
+#include "../mt76x02_mac.h"
+
+static int
+mt76x2_start(struct ieee80211_hw *hw)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	mt76x02_mac_start(dev);
+	mt76x2_phy_start(dev);
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
+				     MT_MAC_WORK_INTERVAL);
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->wdt_work,
+				     MT_WATCHDOG_TIME);
+
+	set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
+	return 0;
+}
+
+static void
+mt76x2_stop(struct ieee80211_hw *hw, bool suspend)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
+	mt76x2_stop_hardware(dev);
+}
+
+int mt76x2e_set_channel(struct mt76_phy *phy)
+{
+	struct mt76x02_dev *dev = container_of(phy->dev, struct mt76x02_dev, mt76);
+
+	tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
+	tasklet_disable(&dev->dfs_pd.dfs_tasklet);
+
+	mt76x2_mac_stop(dev, true);
+	mt76x2_phy_set_channel(dev, &phy->chandef);
+
+	mt76x02_mac_cc_reset(dev);
+	mt76x02_dfs_init_params(dev);
+
+	mt76x2_mac_resume(dev);
+
+	tasklet_enable(&dev->dfs_pd.dfs_tasklet);
+	tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
+
+	return 0;
+}
+
+static int
+mt76x2_config(struct ieee80211_hw *hw, int radio_idx, u32 changed)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+		if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
+			dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
+		else
+			dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
+
+		mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_POWER) {
+		struct mt76_phy *mphy = &dev->mphy;
+
+		dev->txpower_conf = hw->conf.power_level * 2;
+		dev->txpower_conf = mt76_get_sar_power(mphy,
+						       mphy->chandef.chan,
+						       dev->txpower_conf);
+		/* convert to per-chain power for 2x2 devices */
+		dev->txpower_conf -= 6;
+
+		if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) {
+			mt76x2_phy_set_txpower(dev);
+			mt76x02_tx_set_txpwr_auto(dev, dev->txpower_conf);
+		}
+	}
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
+		mt76_update_channel(&dev->mphy);
+
+	return 0;
+}
+
+static void
+mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+	     u32 queues, bool drop)
+{
+}
+
+static int mt76x2_set_antenna(struct ieee80211_hw *hw, int radio_idx,
+			      u32 tx_ant, u32 rx_ant)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant)
+		return -EINVAL;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	dev->mphy.chainmask = (tx_ant == 3) ? 0x202 : 0x101;
+	dev->mphy.antenna_mask = tx_ant;
+
+	mt76_set_stream_caps(&dev->mphy, true);
+	mt76x2_phy_set_antenna(dev);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	return 0;
+}
+
+const struct ieee80211_ops mt76x2_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
+	.tx = mt76x02_tx,
+	.start = mt76x2_start,
+	.stop = mt76x2_stop,
+	.add_interface = mt76x02_add_interface,
+	.remove_interface = mt76x02_remove_interface,
+	.config = mt76x2_config,
+	.configure_filter = mt76x02_configure_filter,
+	.bss_info_changed = mt76x02_bss_info_changed,
+	.sta_state = mt76_sta_state,
+	.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
+	.set_key = mt76x02_set_key,
+	.conf_tx = mt76x02_conf_tx,
+	.sw_scan_start = mt76_sw_scan,
+	.sw_scan_complete = mt76x02_sw_scan_complete,
+	.flush = mt76x2_flush,
+	.ampdu_action = mt76x02_ampdu_action,
+	.get_txpower = mt76_get_txpower,
+	.wake_tx_queue = mt76_wake_tx_queue,
+	.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
+	.release_buffered_frames = mt76_release_buffered_frames,
+	.set_coverage_class = mt76x02_set_coverage_class,
+	.get_survey = mt76_get_survey,
+	.set_tim = mt76_set_tim,
+	.set_antenna = mt76x2_set_antenna,
+	.get_antenna = mt76_get_antenna,
+	.set_rts_threshold = mt76x02_set_rts_threshold,
+	.reconfig_complete = mt76x02_reconfig_complete,
+	.set_sar_specs = mt76x2_set_sar_specs,
+};
+

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/pci_mcu.c

@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/kernel.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
+
+#include "mt76x2.h"
+#include "mcu.h"
+#include "eeprom.h"
+
+static int
+mt76pci_load_rom_patch(struct mt76x02_dev *dev)
+{
+	const struct firmware *fw = NULL;
+	struct mt76x02_patch_header *hdr;
+	bool rom_protect = !is_mt7612(dev);
+	int len, ret = 0;
+	__le32 *cur;
+	u32 patch_mask, patch_reg;
+
+	if (rom_protect && !mt76_poll(dev, MT_MCU_SEMAPHORE_03, 1, 1, 600)) {
+		dev_err(dev->mt76.dev,
+			"Could not get hardware semaphore for ROM PATCH\n");
+		return -ETIMEDOUT;
+	}
+
+	if (mt76xx_rev(dev) >= MT76XX_REV_E3) {
+		patch_mask = BIT(0);
+		patch_reg = MT_MCU_CLOCK_CTL;
+	} else {
+		patch_mask = BIT(1);
+		patch_reg = MT_MCU_COM_REG0;
+	}
+
+	if (rom_protect && (mt76_rr(dev, patch_reg) & patch_mask)) {
+		dev_info(dev->mt76.dev, "ROM patch already applied\n");
+		goto out;
+	}
+
+	ret = request_firmware(&fw, MT7662_ROM_PATCH, dev->mt76.dev);
+	if (ret)
+		goto out;
+
+	if (!fw || !fw->data || fw->size <= sizeof(*hdr)) {
+		ret = -EIO;
+		dev_err(dev->mt76.dev, "Failed to load firmware\n");
+		goto out;
+	}
+
+	hdr = (struct mt76x02_patch_header *)fw->data;
+	dev_info(dev->mt76.dev, "ROM patch build: %.15s\n", hdr->build_time);
+
+	mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, MT_MCU_ROM_PATCH_OFFSET);
+
+	cur = (__le32 *)(fw->data + sizeof(*hdr));
+	len = fw->size - sizeof(*hdr);
+	mt76_wr_copy(dev, MT_MCU_ROM_PATCH_ADDR, cur, len);
+
+	mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0);
+
+	/* Trigger ROM */
+	mt76_wr(dev, MT_MCU_INT_LEVEL, 4);
+
+	if (!mt76_poll_msec(dev, patch_reg, patch_mask, patch_mask, 2000)) {
+		dev_err(dev->mt76.dev, "Failed to load ROM patch\n");
+		ret = -ETIMEDOUT;
+	}
+
+out:
+	/* release semaphore */
+	if (rom_protect)
+		mt76_wr(dev, MT_MCU_SEMAPHORE_03, 1);
+	release_firmware(fw);
+	return ret;
+}
+
+static int
+mt76pci_load_firmware(struct mt76x02_dev *dev)
+{
+	const struct firmware *fw;
+	const struct mt76x02_fw_header *hdr;
+	int len, ret;
+	__le32 *cur;
+	u32 offset, val;
+
+	ret = request_firmware(&fw, MT7662_FIRMWARE, dev->mt76.dev);
+	if (ret)
+		return ret;
+
+	if (!fw || !fw->data || fw->size < sizeof(*hdr))
+		goto error;
+
+	hdr = (const struct mt76x02_fw_header *)fw->data;
+
+	len = sizeof(*hdr);
+	len += le32_to_cpu(hdr->ilm_len);
+	len += le32_to_cpu(hdr->dlm_len);
+
+	if (fw->size != len)
+		goto error;
+
+	val = le16_to_cpu(hdr->fw_ver);
+	dev_info(dev->mt76.dev, "Firmware Version: %d.%d.%02d\n",
+		 (val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf);
+
+	val = le16_to_cpu(hdr->build_ver);
+	dev_info(dev->mt76.dev, "Build: %x\n", val);
+	dev_info(dev->mt76.dev, "Build Time: %.16s\n", hdr->build_time);
+
+	cur = (__le32 *)(fw->data + sizeof(*hdr));
+	len = le32_to_cpu(hdr->ilm_len);
+
+	mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, MT_MCU_ILM_OFFSET);
+	mt76_wr_copy(dev, MT_MCU_ILM_ADDR, cur, len);
+
+	cur += len / sizeof(*cur);
+	len = le32_to_cpu(hdr->dlm_len);
+
+	if (mt76xx_rev(dev) >= MT76XX_REV_E3)
+		offset = MT_MCU_DLM_ADDR_E3;
+	else
+		offset = MT_MCU_DLM_ADDR;
+
+	mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, MT_MCU_DLM_OFFSET);
+	mt76_wr_copy(dev, offset, cur, len);
+
+	mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0);
+
+	val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2);
+	if (FIELD_GET(MT_EE_NIC_CONF_2_XTAL_OPTION, val) == 1)
+		mt76_set(dev, MT_MCU_COM_REG0, BIT(30));
+
+	/* trigger firmware */
+	mt76_wr(dev, MT_MCU_INT_LEVEL, 2);
+	if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 200)) {
+		dev_err(dev->mt76.dev, "Firmware failed to start\n");
+		release_firmware(fw);
+		return -ETIMEDOUT;
+	}
+
+	mt76x02_set_ethtool_fwver(dev, hdr);
+	dev_info(dev->mt76.dev, "Firmware running!\n");
+
+	release_firmware(fw);
+
+	return ret;
+
+error:
+	dev_err(dev->mt76.dev, "Invalid firmware\n");
+	release_firmware(fw);
+	return -ENOENT;
+}
+
+static int
+mt76pci_mcu_restart(struct mt76_dev *mdev)
+{
+	struct mt76x02_dev *dev;
+	int ret;
+
+	dev = container_of(mdev, struct mt76x02_dev, mt76);
+
+	mt76x02_mcu_cleanup(dev);
+	mt76x2_mac_reset(dev, true);
+
+	ret = mt76pci_load_firmware(dev);
+	if (ret)
+		return ret;
+
+	mt76_wr(dev, MT_WPDMA_RST_IDX, ~0);
+
+	return 0;
+}
+
+int mt76x2_mcu_init(struct mt76x02_dev *dev)
+{
+	static const struct mt76_mcu_ops mt76x2_mcu_ops = {
+		.mcu_restart = mt76pci_mcu_restart,
+		.mcu_send_msg = mt76x02_mcu_msg_send,
+		.mcu_parse_response = mt76x02_mcu_parse_response,
+	};
+	int ret;
+
+	dev->mt76.mcu_ops = &mt76x2_mcu_ops;
+
+	ret = mt76pci_load_rom_patch(dev);
+	if (ret)
+		return ret;
+
+	ret = mt76pci_load_firmware(dev);
+	if (ret)
+		return ret;
+
+	mt76x02_mcu_function_select(dev, Q_SELECT, 1);
+	return 0;
+}

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/pci_phy.c

@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ */
+
+#include <linux/delay.h>
+#include "mt76x2.h"
+#include "mcu.h"
+#include "eeprom.h"
+#include "../mt76x02_phy.h"
+
+static bool
+mt76x2_phy_tssi_init_cal(struct mt76x02_dev *dev)
+{
+	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
+	u32 flag = 0;
+
+	if (!mt76x2_tssi_enabled(dev))
+		return false;
+
+	if (mt76x2_channel_silent(dev))
+		return false;
+
+	if (chan->band == NL80211_BAND_5GHZ)
+		flag |= BIT(0);
+
+	if (mt76x02_ext_pa_enabled(dev, chan->band))
+		flag |= BIT(8);
+
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TSSI, flag);
+	dev->cal.tssi_cal_done = true;
+	return true;
+}
+
+static void
+mt76x2_phy_channel_calibrate(struct mt76x02_dev *dev, bool mac_stopped)
+{
+	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
+	bool is_5ghz = chan->band == NL80211_BAND_5GHZ;
+
+	if (dev->cal.channel_cal_done)
+		return;
+
+	if (mt76x2_channel_silent(dev))
+		return;
+
+	if (!dev->cal.tssi_cal_done)
+		mt76x2_phy_tssi_init_cal(dev);
+
+	if (!mac_stopped)
+		mt76x2_mac_stop(dev, false);
+
+	if (is_5ghz)
+		mt76x02_mcu_calibrate(dev, MCU_CAL_LC, 0);
+
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TX_LOFT, is_5ghz);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TXIQ, is_5ghz);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_RXIQC_FI, is_5ghz);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TEMP_SENSOR, 0);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TX_SHAPING, 0);
+
+	if (!mac_stopped)
+		mt76x2_mac_resume(dev);
+
+	mt76x2_apply_gain_adj(dev);
+	mt76x02_edcca_init(dev);
+
+	dev->cal.channel_cal_done = true;
+}
+
+void mt76x2_phy_set_antenna(struct mt76x02_dev *dev)
+{
+	u32 val;
+
+	val = mt76_rr(dev, MT_BBP(AGC, 0));
+	val &= ~(BIT(4) | BIT(1));
+	switch (dev->mphy.antenna_mask) {
+	case 1:
+		/* disable mac DAC control */
+		mt76_clear(dev, MT_BBP(IBI, 9), BIT(11));
+		mt76_clear(dev, MT_BBP(TXBE, 5), 3);
+		mt76_rmw_field(dev, MT_TX_PIN_CFG, MT_TX_PIN_CFG_TXANT, 0x3);
+		mt76_rmw_field(dev, MT_BBP(CORE, 32), GENMASK(21, 20), 2);
+		/* disable DAC 1 */
+		mt76_rmw_field(dev, MT_BBP(CORE, 33), GENMASK(12, 9), 4);
+
+		val &= ~(BIT(3) | BIT(0));
+		break;
+	case 2:
+		/* disable mac DAC control */
+		mt76_clear(dev, MT_BBP(IBI, 9), BIT(11));
+		mt76_rmw_field(dev, MT_BBP(TXBE, 5), 3, 1);
+		mt76_rmw_field(dev, MT_TX_PIN_CFG, MT_TX_PIN_CFG_TXANT, 0xc);
+		mt76_rmw_field(dev, MT_BBP(CORE, 32), GENMASK(21, 20), 1);
+		/* disable DAC 0 */
+		mt76_rmw_field(dev, MT_BBP(CORE, 33), GENMASK(12, 9), 1);
+
+		val &= ~BIT(3);
+		val |= BIT(0);
+		break;
+	case 3:
+	default:
+		/* enable mac DAC control */
+		mt76_set(dev, MT_BBP(IBI, 9), BIT(11));
+		mt76_set(dev, MT_BBP(TXBE, 5), 3);
+		mt76_rmw_field(dev, MT_TX_PIN_CFG, MT_TX_PIN_CFG_TXANT, 0xf);
+		mt76_clear(dev, MT_BBP(CORE, 32), GENMASK(21, 20));
+		mt76_clear(dev, MT_BBP(CORE, 33), GENMASK(12, 9));
+
+		val &= ~BIT(0);
+		val |= BIT(3);
+		break;
+	}
+	mt76_wr(dev, MT_BBP(AGC, 0), val);
+}
+
+int mt76x2_phy_set_channel(struct mt76x02_dev *dev,
+			   struct cfg80211_chan_def *chandef)
+{
+	struct ieee80211_channel *chan = chandef->chan;
+	bool scan = test_bit(MT76_SCANNING, &dev->mphy.state);
+	enum nl80211_band band = chan->band;
+	u8 channel;
+
+	u32 ext_cca_chan[4] = {
+		[0] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(0)),
+		[1] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(1)),
+		[2] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(2)),
+		[3] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(3)),
+	};
+	int ch_group_index;
+	u8 bw, bw_index;
+	int freq, freq1;
+	int ret;
+
+	dev->cal.channel_cal_done = false;
+	freq = chandef->chan->center_freq;
+	freq1 = chandef->center_freq1;
+	channel = chan->hw_value;
+
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_40:
+		bw = 1;
+		if (freq1 > freq) {
+			bw_index = 1;
+			ch_group_index = 0;
+		} else {
+			bw_index = 3;
+			ch_group_index = 1;
+		}
+		channel += 2 - ch_group_index * 4;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		ch_group_index = (freq - freq1 + 30) / 20;
+		if (WARN_ON(ch_group_index < 0 || ch_group_index > 3))
+			ch_group_index = 0;
+		bw = 2;
+		bw_index = ch_group_index;
+		channel += 6 - ch_group_index * 4;
+		break;
+	default:
+		bw = 0;
+		bw_index = 0;
+		ch_group_index = 0;
+		break;
+	}
+
+	mt76x2_read_rx_gain(dev);
+	mt76x2_phy_set_txpower_regs(dev, band);
+	mt76x2_configure_tx_delay(dev, band, bw);
+	mt76x2_phy_set_txpower(dev);
+
+	mt76x02_phy_set_band(dev, chan->band, ch_group_index & 1);
+	mt76x02_phy_set_bw(dev, chandef->width, ch_group_index);
+
+	mt76_rmw(dev, MT_EXT_CCA_CFG,
+		 (MT_EXT_CCA_CFG_CCA0 |
+		  MT_EXT_CCA_CFG_CCA1 |
+		  MT_EXT_CCA_CFG_CCA2 |
+		  MT_EXT_CCA_CFG_CCA3 |
+		  MT_EXT_CCA_CFG_CCA_MASK),
+		 ext_cca_chan[ch_group_index]);
+
+	ret = mt76x2_mcu_set_channel(dev, channel, bw, bw_index, scan);
+	if (ret)
+		return ret;
+
+	mt76x2_mcu_init_gain(dev, channel, dev->cal.rx.mcu_gain, true);
+
+	mt76x2_phy_set_antenna(dev);
+
+	/* Enable LDPC Rx */
+	if (mt76xx_rev(dev) >= MT76XX_REV_E3)
+		mt76_set(dev, MT_BBP(RXO, 13), BIT(10));
+
+	if (!dev->cal.init_cal_done) {
+		u8 val = mt76x02_eeprom_get(dev, MT_EE_BT_RCAL_RESULT);
+
+		if (val != 0xff)
+			mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0);
+	}
+
+	mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, channel);
+
+	/* Rx LPF calibration */
+	if (!dev->cal.init_cal_done)
+		mt76x02_mcu_calibrate(dev, MCU_CAL_RC, 0);
+
+	dev->cal.init_cal_done = true;
+
+	mt76_wr(dev, MT_BBP(AGC, 61), 0xFF64A4E2);
+	mt76_wr(dev, MT_BBP(AGC, 7), 0x08081010);
+	mt76_wr(dev, MT_BBP(AGC, 11), 0x00000404);
+	mt76_wr(dev, MT_BBP(AGC, 2), 0x00007070);
+	mt76_wr(dev, MT_TXOP_CTRL_CFG, 0x04101B3F);
+
+	if (scan)
+		return 0;
+
+	mt76x2_phy_channel_calibrate(dev, true);
+	mt76x02_init_agc_gain(dev);
+
+	/* init default values for temp compensation */
+	if (mt76x2_tssi_enabled(dev)) {
+		mt76_rmw_field(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP,
+			       0x38);
+		mt76_rmw_field(dev, MT_TX_ALC_CFG_2, MT_TX_ALC_CFG_2_TEMP_COMP,
+			       0x38);
+	}
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
+				     MT_CALIBRATE_INTERVAL);
+
+	return 0;
+}
+
+static void
+mt76x2_phy_temp_compensate(struct mt76x02_dev *dev)
+{
+	struct mt76x2_temp_comp t;
+	int temp, db_diff;
+
+	if (mt76x2_get_temp_comp(dev, &t))
+		return;
+
+	temp = mt76_get_field(dev, MT_TEMP_SENSOR, MT_TEMP_SENSOR_VAL);
+	temp -= t.temp_25_ref;
+	temp = (temp * 1789) / 1000 + 25;
+	dev->cal.temp = temp;
+
+	if (temp > 25)
+		db_diff = (temp - 25) / t.high_slope;
+	else
+		db_diff = (25 - temp) / t.low_slope;
+
+	db_diff = min(db_diff, t.upper_bound);
+	db_diff = max(db_diff, t.lower_bound);
+
+	mt76_rmw_field(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP,
+		       db_diff * 2);
+	mt76_rmw_field(dev, MT_TX_ALC_CFG_2, MT_TX_ALC_CFG_2_TEMP_COMP,
+		       db_diff * 2);
+}
+
+void mt76x2_phy_calibrate(struct work_struct *work)
+{
+	struct mt76x02_dev *dev;
+
+	dev = container_of(work, struct mt76x02_dev, cal_work.work);
+
+	mutex_lock(&dev->mt76.mutex);
+
+	mt76x2_phy_channel_calibrate(dev, false);
+	mt76x2_phy_tssi_compensate(dev);
+	mt76x2_phy_temp_compensate(dev);
+	mt76x2_phy_update_channel_gain(dev);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
+				     MT_CALIBRATE_INTERVAL);
+}
+
+int mt76x2_phy_start(struct mt76x02_dev *dev)
+{
+	int ret;
+
+	ret = mt76x02_mcu_set_radio_state(dev, true);
+	if (ret)
+		return ret;
+
+	mt76x2_mcu_load_cr(dev, MT_RF_BBP_CR, 0, 0);
+
+	return ret;
+}

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/phy.c

@@ -0,0 +1,349 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#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 mt76x02_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->mphy.chandef.width;
+	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
+	struct mt76x2_tx_power_info txp;
+	int txp_0, txp_1, delta = 0;
+	struct mt76x02_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.target_power + delta);
+	mt76x02_limit_rate_power(&t, dev->txpower_conf);
+	dev->mphy.txpower_cur = mt76x02_get_max_rate_power(&t);
+
+	base_power = mt76x2_get_min_rate_power(&t);
+	delta = base_power - txp.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.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->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->mphy.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;
+
+	val = 0x1836 << 16;
+	if (!mt76x2_has_ext_lna(dev) &&
+	    dev->mphy.chandef.width >= NL80211_CHAN_WIDTH_40)
+		val = 0x1e42 << 16;
+
+	if (mt76x2_has_ext_lna(dev) &&
+	    dev->mphy.chandef.chan->band == NL80211_BAND_2GHZ &&
+	    dev->mphy.chandef.width < NL80211_CHAN_WIDTH_40)
+		val = 0x0f36 << 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->mphy.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;
+	u32 agc_35, agc_37;
+	bool gain_change;
+	int low_gain;
+	u32 val;
+
+	dev->cal.avg_rssi_all = mt76_get_min_avg_rssi(&dev->mt76, 0);
+	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->mphy.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;
+
+	agc_37 = 0x2121262c;
+	if (dev->mphy.chandef.chan->band == NL80211_BAND_2GHZ)
+		agc_35 = 0x11111516;
+	else if (low_gain == 2)
+		agc_35 = agc_37 = 0x08080808;
+	else if (dev->mphy.chandef.width == NL80211_CHAN_WIDTH_80)
+		agc_35 = 0x10101014;
+	else
+		agc_35 = 0x11111116;
+
+	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);
+		gain_delta = 0;
+		dev->cal.agc_gain_adjust = low_gain_delta;
+	}
+
+	mt76_wr(dev, MT_BBP(AGC, 35), agc_35);
+	mt76_wr(dev, MT_BBP(AGC, 37), agc_37);
+
+	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);

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/usb.c

@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "../mt76x02_usb.h"
+#include "mt76x2u.h"
+
+static const struct usb_device_id mt76x2u_device_table[] = {
+	{ USB_DEVICE(0x0b05, 0x1833) },	/* Asus USB-AC54 */
+	{ USB_DEVICE(0x0b05, 0x17eb) },	/* Asus USB-AC55 */
+	{ USB_DEVICE(0x0b05, 0x180b) },	/* Asus USB-N53 B1 */
+	{ USB_DEVICE(0x0e8d, 0x7612) },	/* Aukey USBAC1200 - Alfa AWUS036ACM */
+	{ USB_DEVICE(0x057c, 0x8503) },	/* Avm FRITZ!WLAN AC860 */
+	{ USB_DEVICE(0x7392, 0xb711) },	/* Edimax EW 7722 UAC */
+	{ USB_DEVICE(0x056e, 0x400a) },	/* ELECOM WDC-867SU3S */
+	{ USB_DEVICE(0x0e8d, 0x7632) },	/* HC-M7662BU1 */
+	{ USB_DEVICE(0x0471, 0x2126) }, /* LiteOn WN4516R module, nonstandard USB connector */
+	{ USB_DEVICE(0x0471, 0x7600) }, /* LiteOn WN4519R module, nonstandard USB connector */
+	{ USB_DEVICE(0x2c4e, 0x0103) },	/* Mercury UD13 */
+	{ USB_DEVICE(0x0846, 0x9014) },	/* Netgear WNDA3100v3 */
+	{ USB_DEVICE(0x0846, 0x9053) },	/* Netgear A6210 */
+	{ USB_DEVICE(0x045e, 0x02e6) },	/* XBox One Wireless Adapter */
+	{ USB_DEVICE(0x045e, 0x02fe) },	/* XBox One Wireless Adapter */
+	{ USB_DEVICE(0x2357, 0x0137) },	/* TP-Link TL-WDN6200 */
+	{ },
+};
+
+static int mt76x2u_probe(struct usb_interface *intf,
+			 const struct usb_device_id *id)
+{
+	static const struct mt76_driver_ops drv_ops = {
+		.drv_flags = MT_DRV_SW_RX_AIRTIME |
+			     MT_DRV_IGNORE_TXS_FAILED,
+		.survey_flags = SURVEY_INFO_TIME_TX,
+		.update_survey = mt76x02_update_channel,
+		.set_channel = mt76x2u_set_channel,
+		.tx_prepare_skb = mt76x02u_tx_prepare_skb,
+		.tx_complete_skb = mt76x02u_tx_complete_skb,
+		.tx_status_data = mt76x02_tx_status_data,
+		.rx_skb = mt76x02_queue_rx_skb,
+		.sta_ps = mt76x02_sta_ps,
+		.sta_add = mt76x02_sta_add,
+		.sta_remove = mt76x02_sta_remove,
+	};
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct mt76x02_dev *dev;
+	struct mt76_dev *mdev;
+	int err;
+
+	mdev = mt76_alloc_device(&intf->dev, sizeof(*dev), &mt76x2u_ops,
+				 &drv_ops);
+	if (!mdev)
+		return -ENOMEM;
+
+	dev = container_of(mdev, struct mt76x02_dev, mt76);
+
+	usb_reset_device(udev);
+
+	usb_set_intfdata(intf, dev);
+
+	mt76x02u_init_mcu(mdev);
+	err = mt76u_init(mdev, intf);
+	if (err < 0)
+		goto err;
+
+	mdev->rev = mt76_rr(dev, MT_ASIC_VERSION);
+	dev_info(mdev->dev, "ASIC revision: %08x\n", mdev->rev);
+	if (!is_mt76x2(dev)) {
+		err = -ENODEV;
+		goto err;
+	}
+
+	err = mt76x2u_register_device(dev);
+	if (err < 0)
+		goto err;
+
+	return 0;
+
+err:
+	mt76u_queues_deinit(&dev->mt76);
+	mt76_free_device(&dev->mt76);
+	usb_set_intfdata(intf, NULL);
+
+	return err;
+}
+
+static void mt76x2u_disconnect(struct usb_interface *intf)
+{
+	struct mt76x02_dev *dev = usb_get_intfdata(intf);
+	struct ieee80211_hw *hw = mt76_hw(dev);
+
+	set_bit(MT76_REMOVED, &dev->mphy.state);
+	ieee80211_unregister_hw(hw);
+	mt76x2u_cleanup(dev);
+	mt76_free_device(&dev->mt76);
+	usb_set_intfdata(intf, NULL);
+}
+
+static int __maybe_unused mt76x2u_suspend(struct usb_interface *intf,
+					  pm_message_t state)
+{
+	struct mt76x02_dev *dev = usb_get_intfdata(intf);
+
+	mt76u_stop_rx(&dev->mt76);
+
+	return 0;
+}
+
+static int __maybe_unused mt76x2u_resume(struct usb_interface *intf)
+{
+	struct mt76x02_dev *dev = usb_get_intfdata(intf);
+	int err;
+
+	err = mt76u_resume_rx(&dev->mt76);
+	if (err < 0)
+		goto err;
+
+	err = mt76x2u_init_hardware(dev);
+	if (err < 0)
+		goto err;
+
+	return 0;
+
+err:
+	mt76x2u_cleanup(dev);
+	return err;
+}
+
+MODULE_DEVICE_TABLE(usb, mt76x2u_device_table);
+MODULE_FIRMWARE(MT7662_FIRMWARE);
+MODULE_FIRMWARE(MT7662_ROM_PATCH);
+
+static struct usb_driver mt76x2u_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= mt76x2u_device_table,
+	.probe		= mt76x2u_probe,
+	.disconnect	= mt76x2u_disconnect,
+#ifdef CONFIG_PM
+	.suspend	= mt76x2u_suspend,
+	.resume		= mt76x2u_resume,
+	.reset_resume	= mt76x2u_resume,
+#endif /* CONFIG_PM */
+	.soft_unbind	= 1,
+	.disable_hub_initiated_lpm = 1,
+};
+module_usb_driver(mt76x2u_driver);
+
+MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
+MODULE_DESCRIPTION("MediaTek MT76x2U (USB) wireless driver");
+MODULE_LICENSE("Dual BSD/GPL");

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/usb_init.c

@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include <linux/delay.h>
+
+#include "mt76x2u.h"
+#include "eeprom.h"
+#include "../mt76x02_phy.h"
+#include "../mt76x02_usb.h"
+
+static void mt76x2u_init_dma(struct mt76x02_dev *dev)
+{
+	u32 val = mt76_rr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG));
+
+	val |= MT_USB_DMA_CFG_RX_DROP_OR_PAD |
+	       MT_USB_DMA_CFG_RX_BULK_EN |
+	       MT_USB_DMA_CFG_TX_BULK_EN;
+
+	/* disable AGGR_BULK_RX in order to receive one
+	 * frame in each rx urb and avoid copies
+	 */
+	val &= ~MT_USB_DMA_CFG_RX_BULK_AGG_EN;
+	mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
+}
+
+static void mt76x2u_power_on_rf_patch(struct mt76x02_dev *dev)
+{
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), BIT(0) | BIT(16));
+	udelay(1);
+
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x1c), 0xff);
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x1c), 0x30);
+
+	mt76_wr(dev, MT_VEND_ADDR(CFG, 0x14), 0x484f);
+	udelay(1);
+
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), BIT(17));
+	usleep_range(150, 200);
+
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x130), BIT(16));
+	usleep_range(50, 100);
+
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x14c), BIT(19) | BIT(20));
+}
+
+static void mt76x2u_power_on_rf(struct mt76x02_dev *dev, int unit)
+{
+	int shift = unit ? 8 : 0;
+	u32 val = (BIT(1) | BIT(3) | BIT(4) | BIT(5)) << shift;
+
+	/* Enable RF BG */
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), BIT(0) << shift);
+	usleep_range(10, 20);
+
+	/* Enable RFDIG LDO/AFE/ABB/ADDA */
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x130), val);
+	usleep_range(10, 20);
+
+	/* Switch RFDIG power to internal LDO */
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x130), BIT(2) << shift);
+	usleep_range(10, 20);
+
+	mt76x2u_power_on_rf_patch(dev);
+
+	mt76_set(dev, 0x530, 0xf);
+}
+
+static void mt76x2u_power_on(struct mt76x02_dev *dev)
+{
+	u32 val;
+
+	/* Turn on WL MTCMOS */
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x148),
+		 MT_WLAN_MTC_CTRL_MTCMOS_PWR_UP);
+
+	val = MT_WLAN_MTC_CTRL_STATE_UP |
+	      MT_WLAN_MTC_CTRL_PWR_ACK |
+	      MT_WLAN_MTC_CTRL_PWR_ACK_S;
+
+	mt76_poll(dev, MT_VEND_ADDR(CFG, 0x148), val, val, 1000);
+
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x148), 0x7f << 16);
+	usleep_range(10, 20);
+
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x148), 0xf << 24);
+	usleep_range(10, 20);
+
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x148), 0xf << 24);
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x148), 0xfff);
+
+	/* Turn on AD/DA power down */
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x1204), BIT(3));
+
+	/* WLAN function enable */
+	mt76_set(dev, MT_VEND_ADDR(CFG, 0x80), BIT(0));
+
+	/* Release BBP software reset */
+	mt76_clear(dev, MT_VEND_ADDR(CFG, 0x64), BIT(18));
+
+	mt76x2u_power_on_rf(dev, 0);
+	mt76x2u_power_on_rf(dev, 1);
+}
+
+static int mt76x2u_init_eeprom(struct mt76x02_dev *dev)
+{
+	u32 val, i;
+
+	dev->mt76.eeprom.data = devm_kzalloc(dev->mt76.dev,
+					     MT7612U_EEPROM_SIZE,
+					     GFP_KERNEL);
+	dev->mt76.eeprom.size = MT7612U_EEPROM_SIZE;
+	if (!dev->mt76.eeprom.data)
+		return -ENOMEM;
+
+	for (i = 0; i + 4 <= MT7612U_EEPROM_SIZE; i += 4) {
+		val = mt76_rr(dev, MT_VEND_ADDR(EEPROM, i));
+		put_unaligned_le32(val, dev->mt76.eeprom.data + i);
+	}
+
+	mt76x02_eeprom_parse_hw_cap(dev);
+	return 0;
+}
+
+int mt76x2u_init_hardware(struct mt76x02_dev *dev)
+{
+	int i, k, err;
+
+	mt76x2_reset_wlan(dev, true);
+	mt76x2u_power_on(dev);
+
+	if (!mt76x02_wait_for_mac(&dev->mt76))
+		return -ETIMEDOUT;
+
+	err = mt76x2u_mcu_fw_init(dev);
+	if (err < 0)
+		return err;
+
+	if (!mt76_poll_msec(dev, MT_WPDMA_GLO_CFG,
+			    MT_WPDMA_GLO_CFG_TX_DMA_BUSY |
+			    MT_WPDMA_GLO_CFG_RX_DMA_BUSY, 0, 100))
+		return -EIO;
+
+	/* wait for asic ready after fw load. */
+	if (!mt76x02_wait_for_mac(&dev->mt76))
+		return -ETIMEDOUT;
+
+	mt76x2u_init_dma(dev);
+
+	err = mt76x2u_mcu_init(dev);
+	if (err < 0)
+		return err;
+
+	err = mt76x2u_mac_reset(dev);
+	if (err < 0)
+		return err;
+
+	mt76x02_mac_setaddr(dev, dev->mt76.eeprom.data + MT_EE_MAC_ADDR);
+	dev->mt76.rxfilter = mt76_rr(dev, MT_RX_FILTR_CFG);
+
+	if (!mt76x02_wait_for_txrx_idle(&dev->mt76))
+		return -ETIMEDOUT;
+
+	/* reset wcid table */
+	for (i = 0; i < 256; i++)
+		mt76x02_mac_wcid_setup(dev, i, 0, NULL);
+
+	/* reset shared key table and pairwise key table */
+	for (i = 0; i < 16; i++) {
+		for (k = 0; k < 4; k++)
+			mt76x02_mac_shared_key_setup(dev, i, k, NULL);
+	}
+
+	mt76x02u_init_beacon_config(dev);
+
+	mt76_rmw(dev, MT_US_CYC_CFG, MT_US_CYC_CNT, 0x1e);
+	mt76_wr(dev, MT_TXOP_CTRL_CFG, 0x583f);
+
+	err = mt76x2_mcu_load_cr(dev, MT_RF_BBP_CR, 0, 0);
+	if (err < 0)
+		return err;
+
+	mt76x02_phy_set_rxpath(dev);
+	mt76x02_phy_set_txdac(dev);
+
+	return mt76x2u_mac_stop(dev);
+}
+
+int mt76x2u_register_device(struct mt76x02_dev *dev)
+{
+	struct ieee80211_hw *hw = mt76_hw(dev);
+	struct mt76_usb *usb = &dev->mt76.usb;
+	bool vht;
+	int err;
+
+	INIT_DELAYED_WORK(&dev->cal_work, mt76x2u_phy_calibrate);
+	err = mt76x02_init_device(dev);
+	if (err)
+		return err;
+
+	err = mt76x2u_init_eeprom(dev);
+	if (err < 0)
+		return err;
+
+	usb->mcu.data = devm_kmalloc(dev->mt76.dev, MCU_RESP_URB_SIZE,
+				     GFP_KERNEL);
+	if (!usb->mcu.data)
+		return -ENOMEM;
+
+	err = mt76u_alloc_queues(&dev->mt76);
+	if (err < 0)
+		goto fail;
+
+	err = mt76x2u_init_hardware(dev);
+	if (err < 0)
+		goto fail;
+
+	/* check hw sg support in order to enable AMSDU */
+	hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_TX_SG_MAX_SIZE : 1;
+	switch (dev->mt76.rev) {
+	case 0x76320044:
+		/* these ASIC revisions do not support VHT */
+		vht = false;
+		break;
+	default:
+		vht = true;
+		break;
+	}
+
+	err = mt76_register_device(&dev->mt76, vht, mt76x02_rates,
+				   ARRAY_SIZE(mt76x02_rates));
+	if (err)
+		goto fail;
+
+	set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
+
+	mt76x02_init_debugfs(dev);
+	mt76x2_init_txpower(dev, &dev->mphy.sband_2g.sband);
+	mt76x2_init_txpower(dev, &dev->mphy.sband_5g.sband);
+
+	return 0;
+
+fail:
+	mt76x2u_cleanup(dev);
+	return err;
+}
+
+void mt76x2u_stop_hw(struct mt76x02_dev *dev)
+{
+	cancel_delayed_work_sync(&dev->cal_work);
+	cancel_delayed_work_sync(&dev->mphy.mac_work);
+	mt76x2u_mac_stop(dev);
+}
+
+void mt76x2u_cleanup(struct mt76x02_dev *dev)
+{
+	mt76x02_mcu_set_radio_state(dev, false);
+	mt76x2u_stop_hw(dev);
+	mt76u_queues_deinit(&dev->mt76);
+}

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/usb_mac.c

@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include "mt76x2u.h"
+#include "eeprom.h"
+
+static void mt76x2u_mac_fixup_xtal(struct mt76x02_dev *dev)
+{
+	s8 offset = 0;
+	u16 eep_val;
+
+	eep_val = mt76x02_eeprom_get(dev, MT_EE_XTAL_TRIM_2);
+
+	offset = eep_val & 0x7f;
+	if ((eep_val & 0xff) == 0xff)
+		offset = 0;
+	else if (eep_val & 0x80)
+		offset = 0 - offset;
+
+	eep_val >>= 8;
+	if (eep_val == 0x00 || eep_val == 0xff) {
+		eep_val = mt76x02_eeprom_get(dev, MT_EE_XTAL_TRIM_1);
+		eep_val &= 0xff;
+
+		if (eep_val == 0x00 || eep_val == 0xff)
+			eep_val = 0x14;
+	}
+
+	eep_val &= 0x7f;
+	mt76_rmw_field(dev, MT_VEND_ADDR(CFG, MT_XO_CTRL5),
+		       MT_XO_CTRL5_C2_VAL, eep_val + offset);
+	mt76_set(dev, MT_VEND_ADDR(CFG, MT_XO_CTRL6), MT_XO_CTRL6_C2_CTRL);
+
+	mt76_wr(dev, 0x504, 0x06000000);
+	mt76_wr(dev, 0x50c, 0x08800000);
+	mdelay(5);
+	mt76_wr(dev, 0x504, 0x0);
+
+	/* decrease SIFS from 16us to 13us */
+	mt76_rmw_field(dev, MT_XIFS_TIME_CFG,
+		       MT_XIFS_TIME_CFG_OFDM_SIFS, 0xd);
+	mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, MT_BKOFF_SLOT_CFG_CC_DELAY, 1);
+
+	/* init fce */
+	mt76_clear(dev, MT_FCE_L2_STUFF, MT_FCE_L2_STUFF_WR_MPDU_LEN_EN);
+
+	eep_val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_2);
+	switch (FIELD_GET(MT_EE_NIC_CONF_2_XTAL_OPTION, eep_val)) {
+	case 0:
+		mt76_wr(dev, MT_XO_CTRL7, 0x5c1fee80);
+		break;
+	case 1:
+		mt76_wr(dev, MT_XO_CTRL7, 0x5c1feed0);
+		break;
+	default:
+		break;
+	}
+}
+
+int mt76x2u_mac_reset(struct mt76x02_dev *dev)
+{
+	mt76_wr(dev, MT_WPDMA_GLO_CFG, BIT(4) | BIT(5));
+
+	/* init pbf regs */
+	mt76_wr(dev, MT_PBF_TX_MAX_PCNT, 0xefef3f1f);
+	mt76_wr(dev, MT_PBF_RX_MAX_PCNT, 0xfebf);
+
+	mt76_write_mac_initvals(dev);
+
+	mt76_wr(dev, MT_TX_LINK_CFG, 0x1020);
+	mt76_wr(dev, MT_AUTO_RSP_CFG, 0x13);
+	mt76_wr(dev, MT_MAX_LEN_CFG, 0x2f00);
+
+	mt76_wr(dev, MT_WMM_AIFSN, 0x2273);
+	mt76_wr(dev, MT_WMM_CWMIN, 0x2344);
+	mt76_wr(dev, MT_WMM_CWMAX, 0x34aa);
+
+	mt76_clear(dev, MT_MAC_SYS_CTRL,
+		   MT_MAC_SYS_CTRL_RESET_CSR |
+		   MT_MAC_SYS_CTRL_RESET_BBP);
+
+	if (is_mt7612(dev))
+		mt76_clear(dev, MT_COEXCFG0, MT_COEXCFG0_COEX_EN);
+
+	mt76_set(dev, MT_EXT_CCA_CFG, 0xf000);
+	mt76_clear(dev, MT_TX_ALC_CFG_4, BIT(31));
+
+	mt76x2u_mac_fixup_xtal(dev);
+
+	return 0;
+}
+
+int mt76x2u_mac_stop(struct mt76x02_dev *dev)
+{
+	int i, count = 0, val;
+	bool stopped = false;
+	u32 rts_cfg;
+
+	if (test_bit(MT76_REMOVED, &dev->mphy.state))
+		return -EIO;
+
+	rts_cfg = mt76_rr(dev, MT_TX_RTS_CFG);
+	mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg & ~MT_TX_RTS_CFG_RETRY_LIMIT);
+
+	mt76_clear(dev, MT_TXOP_CTRL_CFG, MT_TXOP_ED_CCA_EN);
+	mt76_clear(dev, MT_TXOP_HLDR_ET, MT_TXOP_HLDR_TX40M_BLK_EN);
+
+	/* wait tx dma to stop */
+	for (i = 0; i < 2000; i++) {
+		val = mt76_rr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG));
+		if (!(val & MT_USB_DMA_CFG_TX_BUSY) && i > 10)
+			break;
+		usleep_range(50, 100);
+	}
+
+	/* page count on TxQ */
+	for (i = 0; i < 200; i++) {
+		if (!(mt76_rr(dev, 0x0438) & 0xffffffff) &&
+		    !(mt76_rr(dev, 0x0a30) & 0x000000ff) &&
+		    !(mt76_rr(dev, 0x0a34) & 0xff00ff00))
+			break;
+		usleep_range(10, 20);
+	}
+
+	/* disable tx-rx */
+	mt76_clear(dev, MT_MAC_SYS_CTRL,
+		   MT_MAC_SYS_CTRL_ENABLE_RX |
+		   MT_MAC_SYS_CTRL_ENABLE_TX);
+
+	/* Wait for MAC to become idle */
+	for (i = 0; i < 1000; i++) {
+		if (!(mt76_rr(dev, MT_MAC_STATUS) & MT_MAC_STATUS_TX) &&
+		    !mt76_rr(dev, MT_BBP(IBI, 12))) {
+			stopped = true;
+			break;
+		}
+		usleep_range(10, 20);
+	}
+
+	if (!stopped) {
+		mt76_set(dev, MT_BBP(CORE, 4), BIT(1));
+		mt76_clear(dev, MT_BBP(CORE, 4), BIT(1));
+
+		mt76_set(dev, MT_BBP(CORE, 4), BIT(0));
+		mt76_clear(dev, MT_BBP(CORE, 4), BIT(0));
+	}
+
+	/* page count on RxQ */
+	for (i = 0; i < 200; i++) {
+		if (!(mt76_rr(dev, 0x0430) & 0x00ff0000) &&
+		    !(mt76_rr(dev, 0x0a30) & 0xffffffff) &&
+		    !(mt76_rr(dev, 0x0a34) & 0xffffffff) &&
+		    ++count > 10)
+			break;
+		msleep(50);
+	}
+
+	if (!mt76_poll(dev, MT_MAC_STATUS, MT_MAC_STATUS_RX, 0, 2000))
+		dev_warn(dev->mt76.dev, "MAC RX failed to stop\n");
+
+	/* wait rx dma to stop */
+	for (i = 0; i < 2000; i++) {
+		val = mt76_rr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG));
+		if (!(val & MT_USB_DMA_CFG_RX_BUSY) && i > 10)
+			break;
+		usleep_range(50, 100);
+	}
+
+	mt76_wr(dev, MT_TX_RTS_CFG, rts_cfg);
+
+	return 0;
+}

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c

@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include "mt76x2u.h"
+#include "../mt76x02_usb.h"
+
+static int mt76x2u_start(struct ieee80211_hw *hw)
+{
+	struct mt76x02_dev *dev = hw->priv;
+	int ret;
+
+	ret = mt76x02u_mac_start(dev);
+	if (ret)
+		return ret;
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
+				     MT_MAC_WORK_INTERVAL);
+	set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
+
+	return 0;
+}
+
+static void mt76x2u_stop(struct ieee80211_hw *hw, bool suspend)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
+	mt76u_stop_tx(&dev->mt76);
+	mt76x2u_stop_hw(dev);
+}
+
+int mt76x2u_set_channel(struct mt76_phy *mphy)
+{
+	struct mt76x02_dev *dev = container_of(mphy->dev, struct mt76x02_dev, mt76);
+	int err;
+
+	mt76x02_pre_tbtt_enable(dev, false);
+	mt76x2_mac_stop(dev, false);
+
+	err = mt76x2u_phy_set_channel(dev, &mphy->chandef);
+
+	mt76x02_mac_cc_reset(dev);
+	mt76x2_mac_resume(dev);
+
+	mt76x02_pre_tbtt_enable(dev, true);
+
+	return err;
+}
+
+static int
+mt76x2u_config(struct ieee80211_hw *hw, int radio_idx, u32 changed)
+{
+	struct mt76x02_dev *dev = hw->priv;
+	int err = 0;
+
+	mutex_lock(&dev->mt76.mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+		if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
+			dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
+		else
+			dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
+		mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_POWER) {
+		struct mt76_phy *mphy = &dev->mphy;
+
+		dev->txpower_conf = hw->conf.power_level * 2;
+		dev->txpower_conf = mt76_get_sar_power(mphy,
+						       mphy->chandef.chan,
+						       dev->txpower_conf);
+		/* convert to per-chain power for 2x2 devices */
+		dev->txpower_conf -= 6;
+
+		if (test_bit(MT76_STATE_RUNNING, &mphy->state))
+			mt76x2_phy_set_txpower(dev);
+	}
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
+		mt76_update_channel(&dev->mphy);
+
+	return err;
+}
+
+const struct ieee80211_ops mt76x2u_ops = {
+	.add_chanctx = ieee80211_emulate_add_chanctx,
+	.remove_chanctx = ieee80211_emulate_remove_chanctx,
+	.change_chanctx = ieee80211_emulate_change_chanctx,
+	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
+	.tx = mt76x02_tx,
+	.start = mt76x2u_start,
+	.stop = mt76x2u_stop,
+	.add_interface = mt76x02_add_interface,
+	.remove_interface = mt76x02_remove_interface,
+	.sta_state = mt76_sta_state,
+	.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
+	.set_key = mt76x02_set_key,
+	.ampdu_action = mt76x02_ampdu_action,
+	.config = mt76x2u_config,
+	.wake_tx_queue = mt76_wake_tx_queue,
+	.bss_info_changed = mt76x02_bss_info_changed,
+	.configure_filter = mt76x02_configure_filter,
+	.conf_tx = mt76x02_conf_tx,
+	.sw_scan_start = mt76_sw_scan,
+	.sw_scan_complete = mt76x02_sw_scan_complete,
+	.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
+	.get_txpower = mt76_get_txpower,
+	.get_survey = mt76_get_survey,
+	.set_tim = mt76_set_tim,
+	.release_buffered_frames = mt76_release_buffered_frames,
+	.get_antenna = mt76_get_antenna,
+	.set_sar_specs = mt76x2_set_sar_specs,
+};

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/usb_mcu.c

@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include <linux/firmware.h>
+
+#include "mt76x2u.h"
+#include "eeprom.h"
+#include "../mt76x02_usb.h"
+
+#define MT_CMD_HDR_LEN			4
+
+#define MCU_FW_URB_MAX_PAYLOAD		0x3900
+#define MCU_ROM_PATCH_MAX_PAYLOAD	2048
+
+#define MT76U_MCU_ILM_OFFSET		0x80000
+#define MT76U_MCU_DLM_OFFSET		0x110000
+#define MT76U_MCU_ROM_PATCH_OFFSET	0x90000
+
+static void mt76x2u_mcu_load_ivb(struct mt76x02_dev *dev)
+{
+	mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
+			     USB_DIR_OUT | USB_TYPE_VENDOR,
+			     0x12, 0, NULL, 0);
+}
+
+static void mt76x2u_mcu_enable_patch(struct mt76x02_dev *dev)
+{
+	struct mt76_usb *usb = &dev->mt76.usb;
+	static const u8 data[] = {
+		0x6f, 0xfc, 0x08, 0x01,
+		0x20, 0x04, 0x00, 0x00,
+		0x00, 0x09, 0x00,
+	};
+
+	memcpy(usb->data, data, sizeof(data));
+	mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
+			     USB_DIR_OUT | USB_TYPE_CLASS,
+			     0x12, 0, usb->data, sizeof(data));
+}
+
+static void mt76x2u_mcu_reset_wmt(struct mt76x02_dev *dev)
+{
+	struct mt76_usb *usb = &dev->mt76.usb;
+	u8 data[] = {
+		0x6f, 0xfc, 0x05, 0x01,
+		0x07, 0x01, 0x00, 0x04
+	};
+
+	memcpy(usb->data, data, sizeof(data));
+	mt76u_vendor_request(&dev->mt76, MT_VEND_DEV_MODE,
+			     USB_DIR_OUT | USB_TYPE_CLASS,
+			     0x12, 0, usb->data, sizeof(data));
+}
+
+static int mt76x2u_mcu_load_rom_patch(struct mt76x02_dev *dev)
+{
+	bool rom_protect = !is_mt7612(dev);
+	struct mt76x02_patch_header *hdr;
+	u32 val, patch_mask, patch_reg;
+	const struct firmware *fw;
+	int err;
+
+	if (rom_protect &&
+	    !mt76_poll_msec(dev, MT_MCU_SEMAPHORE_03, 1, 1, 600)) {
+		dev_err(dev->mt76.dev,
+			"could not get hardware semaphore for ROM PATCH\n");
+		return -ETIMEDOUT;
+	}
+
+	if (mt76xx_rev(dev) >= MT76XX_REV_E3) {
+		patch_mask = BIT(0);
+		patch_reg = MT_MCU_CLOCK_CTL;
+	} else {
+		patch_mask = BIT(1);
+		patch_reg = MT_MCU_COM_REG0;
+	}
+
+	if (rom_protect && (mt76_rr(dev, patch_reg) & patch_mask)) {
+		dev_info(dev->mt76.dev, "ROM patch already applied\n");
+		return 0;
+	}
+
+	err = request_firmware(&fw, MT7662_ROM_PATCH, dev->mt76.dev);
+	if (err < 0)
+		return err;
+
+	if (!fw || !fw->data || fw->size <= sizeof(*hdr)) {
+		dev_err(dev->mt76.dev, "failed to load firmware\n");
+		err = -EIO;
+		goto out;
+	}
+
+	hdr = (struct mt76x02_patch_header *)fw->data;
+	dev_info(dev->mt76.dev, "ROM patch build: %.15s\n", hdr->build_time);
+
+	/* enable USB_DMA_CFG */
+	val = MT_USB_DMA_CFG_RX_BULK_EN |
+	      MT_USB_DMA_CFG_TX_BULK_EN |
+	      FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20);
+	mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
+
+	/* vendor reset */
+	mt76x02u_mcu_fw_reset(dev);
+	usleep_range(5000, 10000);
+
+	/* enable FCE to send in-band cmd */
+	mt76_wr(dev, MT_FCE_PSE_CTRL, 0x1);
+	/* FCE tx_fs_base_ptr */
+	mt76_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230);
+	/* FCE tx_fs_max_cnt */
+	mt76_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 0x1);
+	/* FCE pdma enable */
+	mt76_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44);
+	/* FCE skip_fs_en */
+	mt76_wr(dev, MT_FCE_SKIP_FS, 0x3);
+
+	err = mt76x02u_mcu_fw_send_data(dev, fw->data + sizeof(*hdr),
+					fw->size - sizeof(*hdr),
+					MCU_ROM_PATCH_MAX_PAYLOAD,
+					MT76U_MCU_ROM_PATCH_OFFSET);
+	if (err < 0) {
+		err = -EIO;
+		goto out;
+	}
+
+	mt76x2u_mcu_enable_patch(dev);
+	mt76x2u_mcu_reset_wmt(dev);
+	mdelay(20);
+
+	if (!mt76_poll_msec(dev, patch_reg, patch_mask, patch_mask, 100)) {
+		dev_err(dev->mt76.dev, "failed to load ROM patch\n");
+		err = -ETIMEDOUT;
+	}
+
+out:
+	if (rom_protect)
+		mt76_wr(dev, MT_MCU_SEMAPHORE_03, 1);
+	release_firmware(fw);
+	return err;
+}
+
+static int mt76x2u_mcu_load_firmware(struct mt76x02_dev *dev)
+{
+	u32 val, dlm_offset = MT76U_MCU_DLM_OFFSET;
+	const struct mt76x02_fw_header *hdr;
+	int err, len, ilm_len, dlm_len;
+	const struct firmware *fw;
+
+	err = request_firmware(&fw, MT7662_FIRMWARE, dev->mt76.dev);
+	if (err < 0)
+		return err;
+
+	if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	hdr = (const struct mt76x02_fw_header *)fw->data;
+	ilm_len = le32_to_cpu(hdr->ilm_len);
+	dlm_len = le32_to_cpu(hdr->dlm_len);
+	len = sizeof(*hdr) + ilm_len + dlm_len;
+	if (fw->size != len) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	val = le16_to_cpu(hdr->fw_ver);
+	dev_info(dev->mt76.dev, "Firmware Version: %d.%d.%02d\n",
+		 (val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf);
+
+	val = le16_to_cpu(hdr->build_ver);
+	dev_info(dev->mt76.dev, "Build: %x\n", val);
+	dev_info(dev->mt76.dev, "Build Time: %.16s\n", hdr->build_time);
+
+	/* vendor reset */
+	mt76x02u_mcu_fw_reset(dev);
+	usleep_range(5000, 10000);
+
+	/* enable USB_DMA_CFG */
+	val = MT_USB_DMA_CFG_RX_BULK_EN |
+	      MT_USB_DMA_CFG_TX_BULK_EN |
+	      FIELD_PREP(MT_USB_DMA_CFG_RX_BULK_AGG_TOUT, 0x20);
+	mt76_wr(dev, MT_VEND_ADDR(CFG, MT_USB_U3DMA_CFG), val);
+	/* enable FCE to send in-band cmd */
+	mt76_wr(dev, MT_FCE_PSE_CTRL, 0x1);
+	/* FCE tx_fs_base_ptr */
+	mt76_wr(dev, MT_TX_CPU_FROM_FCE_BASE_PTR, 0x400230);
+	/* FCE tx_fs_max_cnt */
+	mt76_wr(dev, MT_TX_CPU_FROM_FCE_MAX_COUNT, 0x1);
+	/* FCE pdma enable */
+	mt76_wr(dev, MT_FCE_PDMA_GLOBAL_CONF, 0x44);
+	/* FCE skip_fs_en */
+	mt76_wr(dev, MT_FCE_SKIP_FS, 0x3);
+
+	/* load ILM */
+	err = mt76x02u_mcu_fw_send_data(dev, fw->data + sizeof(*hdr),
+					ilm_len, MCU_FW_URB_MAX_PAYLOAD,
+					MT76U_MCU_ILM_OFFSET);
+	if (err < 0) {
+		err = -EIO;
+		goto out;
+	}
+
+	/* load DLM */
+	if (mt76xx_rev(dev) >= MT76XX_REV_E3)
+		dlm_offset += 0x800;
+	err = mt76x02u_mcu_fw_send_data(dev, fw->data + sizeof(*hdr) + ilm_len,
+					dlm_len, MCU_FW_URB_MAX_PAYLOAD,
+					dlm_offset);
+	if (err < 0) {
+		err = -EIO;
+		goto out;
+	}
+
+	mt76x2u_mcu_load_ivb(dev);
+	if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 100)) {
+		dev_err(dev->mt76.dev, "firmware failed to start\n");
+		err = -ETIMEDOUT;
+		goto out;
+	}
+
+	mt76_set(dev, MT_MCU_COM_REG0, BIT(1));
+	/* enable FCE to send in-band cmd */
+	mt76_wr(dev, MT_FCE_PSE_CTRL, 0x1);
+	mt76x02_set_ethtool_fwver(dev, hdr);
+	dev_dbg(dev->mt76.dev, "firmware running\n");
+
+out:
+	release_firmware(fw);
+	return err;
+}
+
+int mt76x2u_mcu_fw_init(struct mt76x02_dev *dev)
+{
+	int err;
+
+	err = mt76x2u_mcu_load_rom_patch(dev);
+	if (err < 0)
+		return err;
+
+	return mt76x2u_mcu_load_firmware(dev);
+}
+
+int mt76x2u_mcu_init(struct mt76x02_dev *dev)
+{
+	int err;
+
+	err = mt76x02_mcu_function_select(dev, Q_SELECT, 1);
+	if (err < 0)
+		return err;
+
+	return mt76x02_mcu_set_radio_state(dev, true);
+}

linux-7.2.3/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c

@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
+ */
+
+#include "mt76x2u.h"
+#include "eeprom.h"
+#include "../mt76x02_phy.h"
+
+static void
+mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev, bool mac_stopped)
+{
+	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
+	bool is_5ghz = chan->band == NL80211_BAND_5GHZ;
+
+	if (dev->cal.channel_cal_done)
+		return;
+
+	if (mt76x2_channel_silent(dev))
+		return;
+
+	if (!mac_stopped)
+		mt76x2u_mac_stop(dev);
+
+	if (is_5ghz)
+		mt76x02_mcu_calibrate(dev, MCU_CAL_LC, 0);
+
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TX_LOFT, is_5ghz);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TXIQ, is_5ghz);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_RXIQC_FI, is_5ghz);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TEMP_SENSOR, 0);
+	mt76x02_mcu_calibrate(dev, MCU_CAL_TX_SHAPING, 0);
+
+	if (!mac_stopped)
+		mt76x2_mac_resume(dev);
+	mt76x2_apply_gain_adj(dev);
+	mt76x02_edcca_init(dev);
+
+	dev->cal.channel_cal_done = true;
+}
+
+void mt76x2u_phy_calibrate(struct work_struct *work)
+{
+	struct mt76x02_dev *dev;
+
+	dev = container_of(work, struct mt76x02_dev, cal_work.work);
+
+	mutex_lock(&dev->mt76.mutex);
+
+	mt76x2u_phy_channel_calibrate(dev, false);
+	mt76x2_phy_tssi_compensate(dev);
+	mt76x2_phy_update_channel_gain(dev);
+
+	mutex_unlock(&dev->mt76.mutex);
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
+				     MT_CALIBRATE_INTERVAL);
+}
+
+int mt76x2u_phy_set_channel(struct mt76x02_dev *dev,
+			    struct cfg80211_chan_def *chandef)
+{
+	u32 ext_cca_chan[4] = {
+		[0] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(0)),
+		[1] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(1)),
+		[2] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(2)),
+		[3] = FIELD_PREP(MT_EXT_CCA_CFG_CCA0, 3) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA1, 2) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA2, 1) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA3, 0) |
+		      FIELD_PREP(MT_EXT_CCA_CFG_CCA_MASK, BIT(3)),
+	};
+	bool scan = test_bit(MT76_SCANNING, &dev->mphy.state);
+	struct ieee80211_channel *chan = chandef->chan;
+	u8 channel = chan->hw_value, bw, bw_index;
+	int ch_group_index, freq, freq1, ret;
+
+	dev->cal.channel_cal_done = false;
+	freq = chandef->chan->center_freq;
+	freq1 = chandef->center_freq1;
+
+	switch (chandef->width) {
+	case NL80211_CHAN_WIDTH_40:
+		bw = 1;
+		if (freq1 > freq) {
+			bw_index = 1;
+			ch_group_index = 0;
+		} else {
+			bw_index = 3;
+			ch_group_index = 1;
+		}
+		channel += 2 - ch_group_index * 4;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		ch_group_index = (freq - freq1 + 30) / 20;
+		if (WARN_ON(ch_group_index < 0 || ch_group_index > 3))
+			ch_group_index = 0;
+		bw = 2;
+		bw_index = ch_group_index;
+		channel += 6 - ch_group_index * 4;
+		break;
+	default:
+		bw = 0;
+		bw_index = 0;
+		ch_group_index = 0;
+		break;
+	}
+
+	mt76x2_read_rx_gain(dev);
+	mt76x2_phy_set_txpower_regs(dev, chan->band);
+	mt76x2_configure_tx_delay(dev, chan->band, bw);
+	mt76x2_phy_set_txpower(dev);
+
+	mt76x02_phy_set_band(dev, chan->band, ch_group_index & 1);
+	mt76x02_phy_set_bw(dev, chandef->width, ch_group_index);
+
+	mt76_rmw(dev, MT_EXT_CCA_CFG,
+		 (MT_EXT_CCA_CFG_CCA0 |
+		  MT_EXT_CCA_CFG_CCA1 |
+		  MT_EXT_CCA_CFG_CCA2 |
+		  MT_EXT_CCA_CFG_CCA3 |
+		  MT_EXT_CCA_CFG_CCA_MASK),
+		 ext_cca_chan[ch_group_index]);
+
+	ret = mt76x2_mcu_set_channel(dev, channel, bw, bw_index, scan);
+	if (ret)
+		return ret;
+
+	mt76x2_mcu_init_gain(dev, channel, dev->cal.rx.mcu_gain, true);
+
+	/* Enable LDPC Rx */
+	if (mt76xx_rev(dev) >= MT76XX_REV_E3)
+		mt76_set(dev, MT_BBP(RXO, 13), BIT(10));
+
+	if (!dev->cal.init_cal_done) {
+		u8 val = mt76x02_eeprom_get(dev, MT_EE_BT_RCAL_RESULT);
+
+		if (val != 0xff)
+			mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0);
+	}
+
+	mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, channel);
+
+	/* Rx LPF calibration */
+	if (!dev->cal.init_cal_done)
+		mt76x02_mcu_calibrate(dev, MCU_CAL_RC, 0);
+	dev->cal.init_cal_done = true;
+
+	mt76_wr(dev, MT_BBP(AGC, 61), 0xff64a4e2);
+	mt76_wr(dev, MT_BBP(AGC, 7), 0x08081010);
+	mt76_wr(dev, MT_BBP(AGC, 11), 0x00000404);
+	mt76_wr(dev, MT_BBP(AGC, 2), 0x00007070);
+	mt76_wr(dev, MT_TXOP_CTRL_CFG, 0X04101b3f);
+
+	mt76_set(dev, MT_BBP(TXO, 4), BIT(25));
+	mt76_set(dev, MT_BBP(RXO, 13), BIT(8));
+
+	if (scan)
+		return 0;
+
+	mt76x2u_phy_channel_calibrate(dev, true);
+	mt76x02_init_agc_gain(dev);
+
+	if (mt76x2_tssi_enabled(dev)) {
+		/* init default values for temp compensation */
+		mt76_rmw_field(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP,
+			       0x38);
+		mt76_rmw_field(dev, MT_TX_ALC_CFG_2, MT_TX_ALC_CFG_2_TEMP_COMP,
+			       0x38);
+
+		/* init tssi calibration */
+		if (!mt76x2_channel_silent(dev)) {
+			struct ieee80211_channel *chan;
+			u32 flag = 0;
+
+			chan = dev->mphy.chandef.chan;
+			if (chan->band == NL80211_BAND_5GHZ)
+				flag |= BIT(0);
+			if (mt76x02_ext_pa_enabled(dev, chan->band))
+				flag |= BIT(8);
+			mt76x02_mcu_calibrate(dev, MCU_CAL_TSSI, flag);
+			dev->cal.tssi_cal_done = true;
+		}
+	}
+
+	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->cal_work,
+				     MT_CALIBRATE_INTERVAL);
+	return 0;
+}