drivers/net/wireless/mediatek/mt76/mt7925/init.c - linux - Git at Google

 // SPDX-License-Identifier: ISC
 /* Copyright (C) 2023 MediaTek Inc. */

 #include <linux/etherdevice.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/thermal.h>
 #include <linux/firmware.h>
 #include "mt7925.h"
 #include "mac.h"
 #include "mcu.h"

 static ssize_t mt7925_thermal_temp_show(struct device *dev,
 					struct device_attribute *attr,
 					char *buf)
 {
 	switch (to_sensor_dev_attr(attr)->index) {
 	case 0: {
 		struct mt792x_phy *phy = dev_get_drvdata(dev);
 		struct mt792x_dev *mdev = phy->dev;
 		int temperature;

 		mt792x_mutex_acquire(mdev);
 		temperature = mt7925_mcu_get_temperature(phy);
 		mt792x_mutex_release(mdev);

 		if (temperature < 0)
 			return temperature;
 		/* display in millidegree Celsius */
 		return sprintf(buf, "%u\n", temperature * 1000);
 	}
 	default:
 		return -EINVAL;
 	}
 }
 static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7925_thermal_temp, 0);

 static struct attribute *mt7925_hwmon_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(mt7925_hwmon);

 static int mt7925_thermal_init(struct mt792x_phy *phy)
 {
 	struct wiphy *wiphy = phy->mt76->hw->wiphy;
 	struct device *hwmon;
 	const char *name;

 	if (!IS_REACHABLE(CONFIG_HWMON))
 		return 0;

 	name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7925_%s",
 			      wiphy_name(wiphy));

 	hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
 						       mt7925_hwmon_groups);
 	return PTR_ERR_OR_ZERO(hwmon);
 }
 static void
 mt7925_regd_notifier(struct wiphy *wiphy,
 		     struct regulatory_request *req)
 {
 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 	struct mt792x_dev *dev = mt792x_hw_dev(hw);
 	struct mt76_dev *mdev = &dev->mt76;

 	/* allow world regdom at the first boot only */
 	if (!memcmp(req->alpha2, "00", 2) &&
 	    mdev->alpha2[0] && mdev->alpha2[1])
 		return;

 	/* do not need to update the same country twice */
 	if (!memcmp(req->alpha2, mdev->alpha2, 2) &&
 	    dev->country_ie_env == req->country_ie_env)
 		return;

 	memcpy(mdev->alpha2, req->alpha2, 2);
 	mdev->region = req->dfs_region;
 	dev->country_ie_env = req->country_ie_env;

 	mt792x_mutex_acquire(dev);
 	mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env);
 	mt7925_mcu_set_channel_domain(hw->priv);
 	mt7925_set_tx_sar_pwr(hw, NULL);
 	mt792x_mutex_release(dev);
 }

 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
 {
 	int i;

 	for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
 		u16 rate = mt76_rates[i].hw_value;
 		u16 idx = MT792x_BASIC_RATES_TBL + i;

 		rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) |
 		       FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
 		mt7925_mac_set_fixed_rate_table(dev, idx, rate);
 	}
 }

 int mt7925_mac_init(struct mt792x_dev *dev)
 {
 	int i;

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

 	for (i = 0; i < MT792x_WTBL_SIZE; i++)
 		mt7925_mac_wtbl_update(dev, i,
 				       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 	for (i = 0; i < 2; i++)
 		mt792x_mac_init_band(dev, i);

 	mt7925_mac_init_basic_rates(dev);

 	memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));

 	return 0;
 }
 EXPORT_SYMBOL_GPL(mt7925_mac_init);

 static int __mt7925_init_hardware(struct mt792x_dev *dev)
 {
 	int ret;

 	ret = mt792x_mcu_init(dev);
 	if (ret)
 		goto out;

 	mt76_eeprom_override(&dev->mphy);

 	ret = mt7925_mcu_set_eeprom(dev);
 	if (ret)
 		goto out;

 	ret = mt7925_mac_init(dev);
 	if (ret)
 		goto out;

 out:
 	return ret;
 }

 static int mt7925_init_hardware(struct mt792x_dev *dev)
 {
 	int ret, i;

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

 	for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
 		ret = __mt7925_init_hardware(dev);
 		if (!ret)
 			break;

 		mt792x_init_reset(dev);
 	}

 	if (i == MT792x_MCU_INIT_RETRY_COUNT) {
 		dev_err(dev->mt76.dev, "hardware init failed\n");
 		return ret;
 	}

 	return 0;
 }

 static void mt7925_init_work(struct work_struct *work)
 {
 	struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
 					      init_work);
 	int ret;

 	ret = mt7925_init_hardware(dev);
 	if (ret)
 		return;

 	mt76_set_stream_caps(&dev->mphy, true);
 	mt7925_set_stream_he_eht_caps(&dev->phy);

 	ret = mt76_register_device(&dev->mt76, true, mt76_rates,
 				   ARRAY_SIZE(mt76_rates));
 	if (ret) {
 		dev_err(dev->mt76.dev, "register device failed\n");
 		return;
 	}

 	ret = mt7925_init_debugfs(dev);
 	if (ret) {
 		dev_err(dev->mt76.dev, "register debugfs failed\n");
 		return;
 	}

 	ret = mt7925_thermal_init(&dev->phy);
 	if (ret) {
 		dev_err(dev->mt76.dev, "thermal init failed\n");
 		return;
 	}

 	/* we support chip reset now */
 	dev->hw_init_done = true;

 	mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
 }

 int mt7925_register_device(struct mt792x_dev *dev)
 {
 	struct ieee80211_hw *hw = mt76_hw(dev);
 	int ret;

 	dev->phy.dev = dev;
 	dev->phy.mt76 = &dev->mt76.phy;
 	dev->mt76.phy.priv = &dev->phy;
 	dev->mt76.tx_worker.fn = mt792x_tx_worker;

 	INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
 	INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
 	spin_lock_init(&dev->pm.wake.lock);
 	mutex_init(&dev->pm.mutex);
 	init_waitqueue_head(&dev->pm.wait);
 	spin_lock_init(&dev->pm.txq_lock);
 	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
 	INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
 	INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
 #if IS_ENABLED(CONFIG_IPV6)
 	INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
 	skb_queue_head_init(&dev->ipv6_ns_list);
 #endif
 	skb_queue_head_init(&dev->phy.scan_event_list);
 	skb_queue_head_init(&dev->coredump.msg_list);

 	INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
 	INIT_WORK(&dev->init_work, mt7925_init_work);

 	INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
 	timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
 	init_waitqueue_head(&dev->phy.roc_wait);

 	dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
 	dev->pm.stats.last_wake_event = jiffies;
 	dev->pm.stats.last_doze_event = jiffies;
 	if (!mt76_is_usb(&dev->mt76)) {
 		dev->pm.enable_user = true;
 		dev->pm.enable = true;
 		dev->pm.ds_enable_user = true;
 		dev->pm.ds_enable = true;
 	}

 	if (!mt76_is_mmio(&dev->mt76))
 		hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;

 	mt792x_init_acpi_sar(dev);

 	ret = mt792x_init_wcid(dev);
 	if (ret)
 		return ret;

 	ret = mt792x_init_wiphy(hw);
 	if (ret)
 		return ret;

 	hw->wiphy->reg_notifier = mt7925_regd_notifier;
 	dev->mphy.sband_2g.sband.ht_cap.cap |=
 			IEEE80211_HT_CAP_LDPC_CODING |
 			IEEE80211_HT_CAP_MAX_AMSDU;
 	dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
 			IEEE80211_HT_MPDU_DENSITY_2;
 	dev->mphy.sband_5g.sband.ht_cap.cap |=
 			IEEE80211_HT_CAP_LDPC_CODING |
 			IEEE80211_HT_CAP_MAX_AMSDU;
 	dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
 			IEEE80211_HT_MPDU_DENSITY_1;
 	dev->mphy.sband_5g.sband.vht_cap.cap |=
 			IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 			IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
 			IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
 			(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
 	dev->mphy.sband_5g.sband.vht_cap.cap |=
 			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
 			IEEE80211_VHT_CAP_SHORT_GI_160;

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

 	queue_work(system_wq, &dev->init_work);

 	return 0;
 }
 EXPORT_SYMBOL_GPL(mt7925_register_device);
	// SPDX-License-Identifier: ISC
	/* Copyright (C) 2023 MediaTek Inc. */

	#include <linux/etherdevice.h>
	#include <linux/hwmon.h>
	#include <linux/hwmon-sysfs.h>
	#include <linux/thermal.h>
	#include <linux/firmware.h>
	#include "mt7925.h"
	#include "mac.h"
	#include "mcu.h"

	static ssize_t mt7925_thermal_temp_show(struct device *dev,
	struct device_attribute *attr,
	char *buf)
	{
	switch (to_sensor_dev_attr(attr)->index) {
	case 0: {
	struct mt792x_phy *phy = dev_get_drvdata(dev);
	struct mt792x_dev *mdev = phy->dev;
	int temperature;

	mt792x_mutex_acquire(mdev);
	temperature = mt7925_mcu_get_temperature(phy);
	mt792x_mutex_release(mdev);

	if (temperature < 0)
	return temperature;
	/* display in millidegree Celsius */
	return sprintf(buf, "%u\n", temperature * 1000);
	}
	default:
	return -EINVAL;
	}
	}
	static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7925_thermal_temp, 0);

	static struct attribute *mt7925_hwmon_attrs[] = {
	&sensor_dev_attr_temp1_input.dev_attr.attr,
	NULL,
	};
	ATTRIBUTE_GROUPS(mt7925_hwmon);

	static int mt7925_thermal_init(struct mt792x_phy *phy)
	{
	struct wiphy *wiphy = phy->mt76->hw->wiphy;
	struct device *hwmon;
	const char *name;

	if (!IS_REACHABLE(CONFIG_HWMON))
	return 0;

	name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7925_%s",
	wiphy_name(wiphy));

	hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
	mt7925_hwmon_groups);
	return PTR_ERR_OR_ZERO(hwmon);
	}
	static void
	mt7925_regd_notifier(struct wiphy *wiphy,
	struct regulatory_request *req)
	{
	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
	struct mt792x_dev *dev = mt792x_hw_dev(hw);
	struct mt76_dev *mdev = &dev->mt76;

	/* allow world regdom at the first boot only */
	if (!memcmp(req->alpha2, "00", 2) &&
	mdev->alpha2[0] && mdev->alpha2[1])
	return;

	/* do not need to update the same country twice */
	if (!memcmp(req->alpha2, mdev->alpha2, 2) &&
	dev->country_ie_env == req->country_ie_env)
	return;

	memcpy(mdev->alpha2, req->alpha2, 2);
	mdev->region = req->dfs_region;
	dev->country_ie_env = req->country_ie_env;

	mt792x_mutex_acquire(dev);
	mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env);
	mt7925_mcu_set_channel_domain(hw->priv);
	mt7925_set_tx_sar_pwr(hw, NULL);
	mt792x_mutex_release(dev);
	}

	static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev)
	{
	int i;

	for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) {
	u16 rate = mt76_rates[i].hw_value;
	u16 idx = MT792x_BASIC_RATES_TBL + i;

	rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) \|
	FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0));
	mt7925_mac_set_fixed_rate_table(dev, idx, rate);
	}
	}

	int mt7925_mac_init(struct mt792x_dev *dev)
	{
	int i;

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

	for (i = 0; i < MT792x_WTBL_SIZE; i++)
	mt7925_mac_wtbl_update(dev, i,
	MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
	for (i = 0; i < 2; i++)
	mt792x_mac_init_band(dev, i);

	mt7925_mac_init_basic_rates(dev);

	memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2));

	return 0;
	}
	EXPORT_SYMBOL_GPL(mt7925_mac_init);

	static int __mt7925_init_hardware(struct mt792x_dev *dev)
	{
	int ret;

	ret = mt792x_mcu_init(dev);
	if (ret)
	goto out;

	mt76_eeprom_override(&dev->mphy);

	ret = mt7925_mcu_set_eeprom(dev);
	if (ret)
	goto out;

	ret = mt7925_mac_init(dev);
	if (ret)
	goto out;

	out:
	return ret;
	}

	static int mt7925_init_hardware(struct mt792x_dev *dev)
	{
	int ret, i;

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

	for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {
	ret = __mt7925_init_hardware(dev);
	if (!ret)
	break;

	mt792x_init_reset(dev);
	}

	if (i == MT792x_MCU_INIT_RETRY_COUNT) {
	dev_err(dev->mt76.dev, "hardware init failed\n");
	return ret;
	}

	return 0;
	}

	static void mt7925_init_work(struct work_struct *work)
	{
	struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
	init_work);
	int ret;

	ret = mt7925_init_hardware(dev);
	if (ret)
	return;

	mt76_set_stream_caps(&dev->mphy, true);
	mt7925_set_stream_he_eht_caps(&dev->phy);

	ret = mt76_register_device(&dev->mt76, true, mt76_rates,
	ARRAY_SIZE(mt76_rates));
	if (ret) {
	dev_err(dev->mt76.dev, "register device failed\n");
	return;
	}

	ret = mt7925_init_debugfs(dev);
	if (ret) {
	dev_err(dev->mt76.dev, "register debugfs failed\n");
	return;
	}

	ret = mt7925_thermal_init(&dev->phy);
	if (ret) {
	dev_err(dev->mt76.dev, "thermal init failed\n");
	return;
	}

	/* we support chip reset now */
	dev->hw_init_done = true;

	mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable);
	}

	int mt7925_register_device(struct mt792x_dev *dev)
	{
	struct ieee80211_hw *hw = mt76_hw(dev);
	int ret;

	dev->phy.dev = dev;
	dev->phy.mt76 = &dev->mt76.phy;
	dev->mt76.phy.priv = &dev->phy;
	dev->mt76.tx_worker.fn = mt792x_tx_worker;

	INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);
	INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);
	spin_lock_init(&dev->pm.wake.lock);
	mutex_init(&dev->pm.mutex);
	init_waitqueue_head(&dev->pm.wait);
	spin_lock_init(&dev->pm.txq_lock);
	INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);
	INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work);
	INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work);
	#if IS_ENABLED(CONFIG_IPV6)
	INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work);
	skb_queue_head_init(&dev->ipv6_ns_list);
	#endif
	skb_queue_head_init(&dev->phy.scan_event_list);
	skb_queue_head_init(&dev->coredump.msg_list);

	INIT_WORK(&dev->reset_work, mt7925_mac_reset_work);
	INIT_WORK(&dev->init_work, mt7925_init_work);

	INIT_WORK(&dev->phy.roc_work, mt7925_roc_work);
	timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);
	init_waitqueue_head(&dev->phy.roc_wait);

	dev->pm.idle_timeout = MT792x_PM_TIMEOUT;
	dev->pm.stats.last_wake_event = jiffies;
	dev->pm.stats.last_doze_event = jiffies;
	if (!mt76_is_usb(&dev->mt76)) {
	dev->pm.enable_user = true;
	dev->pm.enable = true;
	dev->pm.ds_enable_user = true;
	dev->pm.ds_enable = true;
	}

	if (!mt76_is_mmio(&dev->mt76))
	hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;

	mt792x_init_acpi_sar(dev);

	ret = mt792x_init_wcid(dev);
	if (ret)
	return ret;

	ret = mt792x_init_wiphy(hw);
	if (ret)
	return ret;

	hw->wiphy->reg_notifier = mt7925_regd_notifier;
	dev->mphy.sband_2g.sband.ht_cap.cap \|=
	IEEE80211_HT_CAP_LDPC_CODING \|
	IEEE80211_HT_CAP_MAX_AMSDU;
	dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
	IEEE80211_HT_MPDU_DENSITY_2;
	dev->mphy.sband_5g.sband.ht_cap.cap \|=
	IEEE80211_HT_CAP_LDPC_CODING \|
	IEEE80211_HT_CAP_MAX_AMSDU;
	dev->mphy.sband_2g.sband.ht_cap.ampdu_density =
	IEEE80211_HT_MPDU_DENSITY_1;
	dev->mphy.sband_5g.sband.vht_cap.cap \|=
	IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 \|
	IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK \|
	IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE \|
	IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE \|
	(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
	dev->mphy.sband_5g.sband.vht_cap.cap \|=
	IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ \|
	IEEE80211_VHT_CAP_SHORT_GI_160;

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

	queue_work(system_wq, &dev->init_work);

	return 0;
	}
	EXPORT_SYMBOL_GPL(mt7925_register_device);