diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/init.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/init.c | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c new file mode 100644 index 000000000000..29732315af1c --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -0,0 +1,350 @@ +// 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" + +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); +} + +static void +mt7921_regd_channel_update(struct wiphy *wiphy, struct mt792x_dev *dev) +{ +#define IS_UNII_INVALID(idx, sfreq, efreq) \ + (!(dev->phy.clc_chan_conf & BIT(idx)) && (cfreq) >= (sfreq) && (cfreq) <= (efreq)) + struct ieee80211_supported_band *sband; + struct mt76_dev *mdev = &dev->mt76; + struct device_node *np, *band_np; + struct ieee80211_channel *ch; + int i, cfreq; + + np = mt76_find_power_limits_node(mdev); + + sband = wiphy->bands[NL80211_BAND_5GHZ]; + band_np = np ? of_get_child_by_name(np, "txpower-5g") : NULL; + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + cfreq = ch->center_freq; + + if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) { + ch->flags |= IEEE80211_CHAN_DISABLED; + continue; + } + + /* UNII-4 */ + if (IS_UNII_INVALID(0, 5845, 5925)) + ch->flags |= IEEE80211_CHAN_DISABLED; + } + + sband = wiphy->bands[NL80211_BAND_6GHZ]; + if (!sband) + return; + + band_np = np ? of_get_child_by_name(np, "txpower-6g") : NULL; + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + cfreq = ch->center_freq; + + if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) { + ch->flags |= IEEE80211_CHAN_DISABLED; + continue; + } + + /* UNII-5/6/7/8 */ + if (IS_UNII_INVALID(1, 5925, 6425) || + IS_UNII_INVALID(2, 6425, 6525) || + IS_UNII_INVALID(3, 6525, 6875) || + IS_UNII_INVALID(4, 6875, 7125)) + ch->flags |= IEEE80211_CHAN_DISABLED; + } +} + +void mt7921_regd_update(struct mt792x_dev *dev) +{ + struct mt76_dev *mdev = &dev->mt76; + struct ieee80211_hw *hw = mdev->hw; + struct wiphy *wiphy = hw->wiphy; + + mt7921_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env); + mt7921_regd_channel_update(wiphy, dev); + mt76_connac_mcu_set_channel_domain(hw->priv); + mt7921_set_tx_sar_pwr(hw, NULL); +} +EXPORT_SYMBOL_GPL(mt7921_regd_update); + +static void +mt7921_regd_notifier(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct mt792x_dev *dev = mt792x_hw_dev(hw); + struct mt76_connac_pm *pm = &dev->pm; + + memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2)); + dev->mt76.region = request->dfs_region; + dev->country_ie_env = request->country_ie_env; + + if (request->initiator == NL80211_REGDOM_SET_BY_USER) { + if (dev->mt76.alpha2[0] == '0' && dev->mt76.alpha2[1] == '0') + wiphy->regulatory_flags &= ~REGULATORY_COUNTRY_IE_IGNORE; + else + wiphy->regulatory_flags |= REGULATORY_COUNTRY_IE_IGNORE; + } + + if (pm->suspended) + return; + + dev->regd_in_progress = true; + + mt792x_mutex_acquire(dev); + mt7921_regd_update(dev); + mt792x_mutex_release(dev); + + dev->regd_in_progress = false; + wake_up(&dev->wait); +} + +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)) { + 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); |