drivers/net/wireless/mediatek/mt76/mt7921/init.c - linux - Git at Google


            
            // SPDX-License-Identifier: BSD-3-Clause-Clear

            
            /* Copyright (C) 2020 MediaTek Inc. */


            #include <linux/etherdevice.h>

            
            #include <linux/hwmon.h>

            
            #include <linux/hwmon-sysfs.h>

            
            #include <linux/thermal.h>

            
            #include <linux/firmware.h>

            
            #include "mt7921.h"

            
            #include "../mt76_connac2_mac.h"

            
            #include "mcu.h"

            
            #include "regd.h"


            static ssize_t mt7921_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 = mt7921_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, mt7921_thermal_temp, 0);


            static struct attribute *mt7921_hwmon_attrs[] = {

            
            	&sensor_dev_attr_temp1_input.dev_attr.attr,

            
            	NULL,

            
            };

            
            ATTRIBUTE_GROUPS(mt7921_hwmon);


            static int mt7921_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, "mt7921_%s",

            
            			      wiphy_name(wiphy));

            
            	if (!name)

            
            		return -ENOMEM;


            	hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,

            
            						       mt7921_hwmon_groups);

            
            	return PTR_ERR_OR_ZERO(hwmon);

            
            }


            int mt7921_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);

            
            	/* enable hardware rx header translation */

            
            	mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);


            	for (i = 0; i < MT792x_WTBL_SIZE; i++)

            
            		mt7921_mac_wtbl_update(dev, i,

            
            				       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);

            
            	for (i = 0; i < 2; i++)

            
            		mt792x_mac_init_band(dev, i);


            	return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);

            
            }

            
            EXPORT_SYMBOL_GPL(mt7921_mac_init);


            static int __mt7921_init_hardware(struct mt792x_dev *dev)

            
            {

            
            	int ret;


            	/* force firmware operation mode into normal state,

            
            	 * which should be set before firmware download stage.

            
            	 */

            
            	mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);

            
            	ret = mt792x_mcu_init(dev);

            
            	if (ret)

            
            		goto out;


            	ret = mt76_eeprom_override(&dev->mphy);

            
            	if (ret)

            
            		goto out;


            	ret = mt7921_mcu_set_eeprom(dev);

            
            	if (ret)

            
            		goto out;


            	ret = mt7921_mac_init(dev);

            
            out:

            
            	return ret;

            
            }


            static int mt7921_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 = __mt7921_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 mt7921_init_work(struct work_struct *work)

            
            {

            
            	struct mt792x_dev *dev = container_of(work, struct mt792x_dev,

            
            					      init_work);

            
            	int ret;


            	ret = mt7921_init_hardware(dev);

            
            	if (ret)

            
            		return;


            	mt76_set_stream_caps(&dev->mphy, true);

            
            	mt7921_set_stream_he_caps(&dev->phy);

            
            	mt792x_config_mac_addr_list(dev);


            	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 = mt7921_init_debugfs(dev);

            
            	if (ret) {

            
            		dev_err(dev->mt76.dev, "register debugfs failed\n");

            
            		return;

            
            	}


            	ret = mt7921_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;


            	mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);

            
            }


            int mt7921_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);

            
            	init_waitqueue_head(&dev->wait);

            
            	if (mt76_is_sdio(&dev->mt76))

            
            		init_waitqueue_head(&dev->mt76.sdio.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, mt7921_scan_work);

            
            	INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);

            
            #if IS_ENABLED(CONFIG_IPV6)

            
            	INIT_WORK(&dev->ipv6_ns_work, mt7921_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, mt7921_mac_reset_work);

            
            	INIT_WORK(&dev->init_work, mt7921_init_work);


            	INIT_WORK(&dev->phy.roc_work, mt7921_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) &&

            
            	    !is_mt7902(&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 = mt7921_regd_notifier;

            
            	dev->mphy.sband_2g.sband.ht_cap.cap |=

            
            			IEEE80211_HT_CAP_LDPC_CODING |

            
            			IEEE80211_HT_CAP_MAX_AMSDU;

            
            	dev->mphy.sband_5g.sband.ht_cap.cap |=

            
            			IEEE80211_HT_CAP_LDPC_CODING |

            
            			IEEE80211_HT_CAP_MAX_AMSDU;

            
            	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);

            
            	if (is_mt7922(&dev->mt76))

            
            		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_percpu_wq, &dev->init_work);


            	return 0;

            
            }

            
            EXPORT_SYMBOL_GPL(mt7921_register_device);
	// SPDX-License-Identifier: BSD-3-Clause-Clear
	/* Copyright (C) 2020 MediaTek Inc. */

	#include <linux/etherdevice.h>
	#include <linux/hwmon.h>
	#include <linux/hwmon-sysfs.h>
	#include <linux/thermal.h>
	#include <linux/firmware.h>
	#include "mt7921.h"
	#include "../mt76_connac2_mac.h"
	#include "mcu.h"
	#include "regd.h"

	static ssize_t mt7921_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 = mt7921_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, mt7921_thermal_temp, 0);

	static struct attribute *mt7921_hwmon_attrs[] = {
	&sensor_dev_attr_temp1_input.dev_attr.attr,
	NULL,
	};
	ATTRIBUTE_GROUPS(mt7921_hwmon);

	static int mt7921_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, "mt7921_%s",
	wiphy_name(wiphy));
	if (!name)
	return -ENOMEM;

	hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,
	mt7921_hwmon_groups);
	return PTR_ERR_OR_ZERO(hwmon);
	}

	int mt7921_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);
	/* enable hardware rx header translation */
	mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);

	for (i = 0; i < MT792x_WTBL_SIZE; i++)
	mt7921_mac_wtbl_update(dev, i,
	MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
	for (i = 0; i < 2; i++)
	mt792x_mac_init_band(dev, i);

	return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
	}
	EXPORT_SYMBOL_GPL(mt7921_mac_init);

	static int __mt7921_init_hardware(struct mt792x_dev *dev)
	{
	int ret;

	/* force firmware operation mode into normal state,
	* which should be set before firmware download stage.
	*/
	mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
	ret = mt792x_mcu_init(dev);
	if (ret)
	goto out;

	ret = mt76_eeprom_override(&dev->mphy);
	if (ret)
	goto out;

	ret = mt7921_mcu_set_eeprom(dev);
	if (ret)
	goto out;

	ret = mt7921_mac_init(dev);
	out:
	return ret;
	}

	static int mt7921_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 = __mt7921_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 mt7921_init_work(struct work_struct *work)
	{
	struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
	init_work);
	int ret;

	ret = mt7921_init_hardware(dev);
	if (ret)
	return;

	mt76_set_stream_caps(&dev->mphy, true);
	mt7921_set_stream_he_caps(&dev->phy);
	mt792x_config_mac_addr_list(dev);

	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 = mt7921_init_debugfs(dev);
	if (ret) {
	dev_err(dev->mt76.dev, "register debugfs failed\n");
	return;
	}

	ret = mt7921_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;

	mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);
	}

	int mt7921_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);
	init_waitqueue_head(&dev->wait);
	if (mt76_is_sdio(&dev->mt76))
	init_waitqueue_head(&dev->mt76.sdio.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, mt7921_scan_work);
	INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);
	#if IS_ENABLED(CONFIG_IPV6)
	INIT_WORK(&dev->ipv6_ns_work, mt7921_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, mt7921_mac_reset_work);
	INIT_WORK(&dev->init_work, mt7921_init_work);

	INIT_WORK(&dev->phy.roc_work, mt7921_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) &&
	!is_mt7902(&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 = mt7921_regd_notifier;
	dev->mphy.sband_2g.sband.ht_cap.cap \|=
	IEEE80211_HT_CAP_LDPC_CODING \|
	IEEE80211_HT_CAP_MAX_AMSDU;
	dev->mphy.sband_5g.sband.ht_cap.cap \|=
	IEEE80211_HT_CAP_LDPC_CODING \|
	IEEE80211_HT_CAP_MAX_AMSDU;
	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);
	if (is_mt7922(&dev->mt76))
	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_percpu_wq, &dev->init_work);

	return 0;
	}
	EXPORT_SYMBOL_GPL(mt7921_register_device);