341 lines · c
1// SPDX-License-Identifier: ISC2/* Copyright (C) 2020 MediaTek Inc. */3 4#include <linux/etherdevice.h>5#include <linux/hwmon.h>6#include <linux/hwmon-sysfs.h>7#include <linux/thermal.h>8#include <linux/firmware.h>9#include "mt7921.h"10#include "../mt76_connac2_mac.h"11#include "mcu.h"12 13static ssize_t mt7921_thermal_temp_show(struct device *dev,14 struct device_attribute *attr,15 char *buf)16{17 switch (to_sensor_dev_attr(attr)->index) {18 case 0: {19 struct mt792x_phy *phy = dev_get_drvdata(dev);20 struct mt792x_dev *mdev = phy->dev;21 int temperature;22 23 mt792x_mutex_acquire(mdev);24 temperature = mt7921_mcu_get_temperature(phy);25 mt792x_mutex_release(mdev);26 27 if (temperature < 0)28 return temperature;29 /* display in millidegree Celsius */30 return sprintf(buf, "%u\n", temperature * 1000);31 }32 default:33 return -EINVAL;34 }35}36static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7921_thermal_temp, 0);37 38static struct attribute *mt7921_hwmon_attrs[] = {39 &sensor_dev_attr_temp1_input.dev_attr.attr,40 NULL,41};42ATTRIBUTE_GROUPS(mt7921_hwmon);43 44static int mt7921_thermal_init(struct mt792x_phy *phy)45{46 struct wiphy *wiphy = phy->mt76->hw->wiphy;47 struct device *hwmon;48 const char *name;49 50 if (!IS_REACHABLE(CONFIG_HWMON))51 return 0;52 53 name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7921_%s",54 wiphy_name(wiphy));55 if (!name)56 return -ENOMEM;57 58 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy,59 mt7921_hwmon_groups);60 return PTR_ERR_OR_ZERO(hwmon);61}62 63static void64mt7921_regd_channel_update(struct wiphy *wiphy, struct mt792x_dev *dev)65{66#define IS_UNII_INVALID(idx, sfreq, efreq) \67 (!(dev->phy.clc_chan_conf & BIT(idx)) && (cfreq) >= (sfreq) && (cfreq) <= (efreq))68 struct ieee80211_supported_band *sband;69 struct mt76_dev *mdev = &dev->mt76;70 struct device_node *np, *band_np;71 struct ieee80211_channel *ch;72 int i, cfreq;73 74 np = mt76_find_power_limits_node(mdev);75 76 sband = wiphy->bands[NL80211_BAND_5GHZ];77 band_np = np ? of_get_child_by_name(np, "txpower-5g") : NULL;78 for (i = 0; i < sband->n_channels; i++) {79 ch = &sband->channels[i];80 cfreq = ch->center_freq;81 82 if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) {83 ch->flags |= IEEE80211_CHAN_DISABLED;84 continue;85 }86 87 /* UNII-4 */88 if (IS_UNII_INVALID(0, 5845, 5925))89 ch->flags |= IEEE80211_CHAN_DISABLED;90 }91 92 sband = wiphy->bands[NL80211_BAND_6GHZ];93 if (!sband)94 return;95 96 band_np = np ? of_get_child_by_name(np, "txpower-6g") : NULL;97 for (i = 0; i < sband->n_channels; i++) {98 ch = &sband->channels[i];99 cfreq = ch->center_freq;100 101 if (np && (!band_np || !mt76_find_channel_node(band_np, ch))) {102 ch->flags |= IEEE80211_CHAN_DISABLED;103 continue;104 }105 106 /* UNII-5/6/7/8 */107 if (IS_UNII_INVALID(1, 5925, 6425) ||108 IS_UNII_INVALID(2, 6425, 6525) ||109 IS_UNII_INVALID(3, 6525, 6875) ||110 IS_UNII_INVALID(4, 6875, 7125))111 ch->flags |= IEEE80211_CHAN_DISABLED;112 }113}114 115void mt7921_regd_update(struct mt792x_dev *dev)116{117 struct mt76_dev *mdev = &dev->mt76;118 struct ieee80211_hw *hw = mdev->hw;119 struct wiphy *wiphy = hw->wiphy;120 121 mt7921_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env);122 mt7921_regd_channel_update(wiphy, dev);123 mt76_connac_mcu_set_channel_domain(hw->priv);124 mt7921_set_tx_sar_pwr(hw, NULL);125}126EXPORT_SYMBOL_GPL(mt7921_regd_update);127 128static void129mt7921_regd_notifier(struct wiphy *wiphy,130 struct regulatory_request *request)131{132 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);133 struct mt792x_dev *dev = mt792x_hw_dev(hw);134 struct mt76_connac_pm *pm = &dev->pm;135 136 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));137 dev->mt76.region = request->dfs_region;138 dev->country_ie_env = request->country_ie_env;139 140 if (pm->suspended)141 return;142 143 dev->regd_in_progress = true;144 145 mt792x_mutex_acquire(dev);146 mt7921_regd_update(dev);147 mt792x_mutex_release(dev);148 149 dev->regd_in_progress = false;150 wake_up(&dev->wait);151}152 153int mt7921_mac_init(struct mt792x_dev *dev)154{155 int i;156 157 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);158 /* enable hardware de-agg */159 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);160 /* enable hardware rx header translation */161 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);162 163 for (i = 0; i < MT792x_WTBL_SIZE; i++)164 mt7921_mac_wtbl_update(dev, i,165 MT_WTBL_UPDATE_ADM_COUNT_CLEAR);166 for (i = 0; i < 2; i++)167 mt792x_mac_init_band(dev, i);168 169 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);170}171EXPORT_SYMBOL_GPL(mt7921_mac_init);172 173static int __mt7921_init_hardware(struct mt792x_dev *dev)174{175 int ret;176 177 /* force firmware operation mode into normal state,178 * which should be set before firmware download stage.179 */180 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);181 ret = mt792x_mcu_init(dev);182 if (ret)183 goto out;184 185 mt76_eeprom_override(&dev->mphy);186 187 ret = mt7921_mcu_set_eeprom(dev);188 if (ret)189 goto out;190 191 ret = mt7921_mac_init(dev);192out:193 return ret;194}195 196static int mt7921_init_hardware(struct mt792x_dev *dev)197{198 int ret, i;199 200 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);201 202 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) {203 ret = __mt7921_init_hardware(dev);204 if (!ret)205 break;206 207 mt792x_init_reset(dev);208 }209 210 if (i == MT792x_MCU_INIT_RETRY_COUNT) {211 dev_err(dev->mt76.dev, "hardware init failed\n");212 return ret;213 }214 215 return 0;216}217 218static void mt7921_init_work(struct work_struct *work)219{220 struct mt792x_dev *dev = container_of(work, struct mt792x_dev,221 init_work);222 int ret;223 224 ret = mt7921_init_hardware(dev);225 if (ret)226 return;227 228 mt76_set_stream_caps(&dev->mphy, true);229 mt7921_set_stream_he_caps(&dev->phy);230 231 ret = mt76_register_device(&dev->mt76, true, mt76_rates,232 ARRAY_SIZE(mt76_rates));233 if (ret) {234 dev_err(dev->mt76.dev, "register device failed\n");235 return;236 }237 238 ret = mt7921_init_debugfs(dev);239 if (ret) {240 dev_err(dev->mt76.dev, "register debugfs failed\n");241 return;242 }243 244 ret = mt7921_thermal_init(&dev->phy);245 if (ret) {246 dev_err(dev->mt76.dev, "thermal init failed\n");247 return;248 }249 250 /* we support chip reset now */251 dev->hw_init_done = true;252 253 mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);254}255 256int mt7921_register_device(struct mt792x_dev *dev)257{258 struct ieee80211_hw *hw = mt76_hw(dev);259 int ret;260 261 dev->phy.dev = dev;262 dev->phy.mt76 = &dev->mt76.phy;263 dev->mt76.phy.priv = &dev->phy;264 dev->mt76.tx_worker.fn = mt792x_tx_worker;265 266 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work);267 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work);268 spin_lock_init(&dev->pm.wake.lock);269 mutex_init(&dev->pm.mutex);270 init_waitqueue_head(&dev->pm.wait);271 init_waitqueue_head(&dev->wait);272 if (mt76_is_sdio(&dev->mt76))273 init_waitqueue_head(&dev->mt76.sdio.wait);274 spin_lock_init(&dev->pm.txq_lock);275 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work);276 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work);277 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);278#if IS_ENABLED(CONFIG_IPV6)279 INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work);280 skb_queue_head_init(&dev->ipv6_ns_list);281#endif282 skb_queue_head_init(&dev->phy.scan_event_list);283 skb_queue_head_init(&dev->coredump.msg_list);284 285 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);286 INIT_WORK(&dev->init_work, mt7921_init_work);287 288 INIT_WORK(&dev->phy.roc_work, mt7921_roc_work);289 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0);290 init_waitqueue_head(&dev->phy.roc_wait);291 292 dev->pm.idle_timeout = MT792x_PM_TIMEOUT;293 dev->pm.stats.last_wake_event = jiffies;294 dev->pm.stats.last_doze_event = jiffies;295 if (!mt76_is_usb(&dev->mt76)) {296 dev->pm.enable_user = true;297 dev->pm.enable = true;298 dev->pm.ds_enable_user = true;299 dev->pm.ds_enable = true;300 }301 302 if (!mt76_is_mmio(&dev->mt76))303 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;304 305 mt792x_init_acpi_sar(dev);306 307 ret = mt792x_init_wcid(dev);308 if (ret)309 return ret;310 311 ret = mt792x_init_wiphy(hw);312 if (ret)313 return ret;314 315 hw->wiphy->reg_notifier = mt7921_regd_notifier;316 dev->mphy.sband_2g.sband.ht_cap.cap |=317 IEEE80211_HT_CAP_LDPC_CODING |318 IEEE80211_HT_CAP_MAX_AMSDU;319 dev->mphy.sband_5g.sband.ht_cap.cap |=320 IEEE80211_HT_CAP_LDPC_CODING |321 IEEE80211_HT_CAP_MAX_AMSDU;322 dev->mphy.sband_5g.sband.vht_cap.cap |=323 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |324 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |325 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |326 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |327 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);328 if (is_mt7922(&dev->mt76))329 dev->mphy.sband_5g.sband.vht_cap.cap |=330 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |331 IEEE80211_VHT_CAP_SHORT_GI_160;332 333 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;334 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;335 336 queue_work(system_wq, &dev->init_work);337 338 return 0;339}340EXPORT_SYMBOL_GPL(mt7921_register_device);341