1// SPDX-License-Identifier: ISC 2/* Copyright (C) 2023 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 "mt7925.h" 10#include "mac.h" 11#include "mcu.h" 12 13static ssize_t mt7925_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 = mt7925_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, mt7925_thermal_temp, 0); 37 38static struct attribute *mt7925_hwmon_attrs[] = { 39 &sensor_dev_attr_temp1_input.dev_attr.attr, 40 NULL, 41}; 42ATTRIBUTE_GROUPS(mt7925_hwmon); 43 44static int mt7925_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, "mt7925_%s", 54 wiphy_name(wiphy)); 55 56 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, 57 mt7925_hwmon_groups); 58 return PTR_ERR_OR_ZERO(hwmon); 59} 60static void 61mt7925_regd_notifier(struct wiphy *wiphy, 62 struct regulatory_request *req) 63{ 64 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 65 struct mt792x_dev *dev = mt792x_hw_dev(hw); 66 struct mt76_dev *mdev = &dev->mt76; 67 68 /* allow world regdom at the first boot only */ 69 if (!memcmp(req->alpha2, "00", 2) && 70 mdev->alpha2[0] && mdev->alpha2[1]) 71 return; 72 73 /* do not need to update the same country twice */ 74 if (!memcmp(req->alpha2, mdev->alpha2, 2) && 75 dev->country_ie_env == req->country_ie_env) 76 return; 77 78 memcpy(mdev->alpha2, req->alpha2, 2); 79 mdev->region = req->dfs_region; 80 dev->country_ie_env = req->country_ie_env; 81 82 mt792x_mutex_acquire(dev); 83 mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env); 84 mt7925_mcu_set_channel_domain(hw->priv); 85 mt7925_set_tx_sar_pwr(hw, NULL); 86 mt792x_mutex_release(dev); 87} 88 89static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 90{ 91 int i; 92 93 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 94 u16 rate = mt76_rates[i].hw_value; 95 u16 idx = MT792x_BASIC_RATES_TBL + i; 96 97 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 98 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 99 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 100 } 101} 102 103int mt7925_mac_init(struct mt792x_dev *dev) 104{ 105 int i; 106 107 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 108 /* enable hardware de-agg */ 109 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 110 111 for (i = 0; i < MT792x_WTBL_SIZE; i++) 112 mt7925_mac_wtbl_update(dev, i, 113 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 114 for (i = 0; i < 2; i++) 115 mt792x_mac_init_band(dev, i); 116 117 mt7925_mac_init_basic_rates(dev); 118 119 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 120 121 return 0; 122} 123EXPORT_SYMBOL_GPL(mt7925_mac_init); 124 125static int __mt7925_init_hardware(struct mt792x_dev *dev) 126{ 127 int ret; 128 129 ret = mt792x_mcu_init(dev); 130 if (ret) 131 goto out; 132 133 mt76_eeprom_override(&dev->mphy); 134 135 ret = mt7925_mcu_set_eeprom(dev); 136 if (ret) 137 goto out; 138 139 ret = mt7925_mac_init(dev); 140 if (ret) 141 goto out; 142 143out: 144 return ret; 145} 146 147static int mt7925_init_hardware(struct mt792x_dev *dev) 148{ 149 int ret, i; 150 151 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 152 153 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 154 ret = __mt7925_init_hardware(dev); 155 if (!ret) 156 break; 157 158 mt792x_init_reset(dev); 159 } 160 161 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 162 dev_err(dev->mt76.dev, "hardware init failed\n"); 163 return ret; 164 } 165 166 return 0; 167} 168 169static void mt7925_init_work(struct work_struct *work) 170{ 171 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 172 init_work); 173 int ret; 174 175 ret = mt7925_init_hardware(dev); 176 if (ret) 177 return; 178 179 mt76_set_stream_caps(&dev->mphy, true); 180 mt7925_set_stream_he_eht_caps(&dev->phy); 181 182 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 183 ARRAY_SIZE(mt76_rates)); 184 if (ret) { 185 dev_err(dev->mt76.dev, "register device failed\n"); 186 return; 187 } 188 189 ret = mt7925_init_debugfs(dev); 190 if (ret) { 191 dev_err(dev->mt76.dev, "register debugfs failed\n"); 192 return; 193 } 194 195 ret = mt7925_thermal_init(&dev->phy); 196 if (ret) { 197 dev_err(dev->mt76.dev, "thermal init failed\n"); 198 return; 199 } 200 201 /* we support chip reset now */ 202 dev->hw_init_done = true; 203 204 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 205} 206 207int mt7925_register_device(struct mt792x_dev *dev) 208{ 209 struct ieee80211_hw *hw = mt76_hw(dev); 210 int ret; 211 212 dev->phy.dev = dev; 213 dev->phy.mt76 = &dev->mt76.phy; 214 dev->mt76.phy.priv = &dev->phy; 215 dev->mt76.tx_worker.fn = mt792x_tx_worker; 216 217 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 218 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 219 spin_lock_init(&dev->pm.wake.lock); 220 mutex_init(&dev->pm.mutex); 221 init_waitqueue_head(&dev->pm.wait); 222 spin_lock_init(&dev->pm.txq_lock); 223 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 224 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 225 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 226#if IS_ENABLED(CONFIG_IPV6) 227 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 228 skb_queue_head_init(&dev->ipv6_ns_list); 229#endif 230 skb_queue_head_init(&dev->phy.scan_event_list); 231 skb_queue_head_init(&dev->coredump.msg_list); 232 233 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 234 INIT_WORK(&dev->init_work, mt7925_init_work); 235 236 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 237 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 238 init_waitqueue_head(&dev->phy.roc_wait); 239 240 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 241 dev->pm.stats.last_wake_event = jiffies; 242 dev->pm.stats.last_doze_event = jiffies; 243 if (!mt76_is_usb(&dev->mt76)) { 244 dev->pm.enable_user = true; 245 dev->pm.enable = true; 246 dev->pm.ds_enable_user = true; 247 dev->pm.ds_enable = true; 248 } 249 250 if (!mt76_is_mmio(&dev->mt76)) 251 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 252 253 mt792x_init_acpi_sar(dev); 254 255 ret = mt792x_init_wcid(dev); 256 if (ret) 257 return ret; 258 259 ret = mt792x_init_wiphy(hw); 260 if (ret) 261 return ret; 262 263 hw->wiphy->reg_notifier = mt7925_regd_notifier; 264 dev->mphy.sband_2g.sband.ht_cap.cap |= 265 IEEE80211_HT_CAP_LDPC_CODING | 266 IEEE80211_HT_CAP_MAX_AMSDU; 267 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 268 IEEE80211_HT_MPDU_DENSITY_2; 269 dev->mphy.sband_5g.sband.ht_cap.cap |= 270 IEEE80211_HT_CAP_LDPC_CODING | 271 IEEE80211_HT_CAP_MAX_AMSDU; 272 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 273 IEEE80211_HT_MPDU_DENSITY_1; 274 dev->mphy.sband_5g.sband.vht_cap.cap |= 275 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 276 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 277 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 278 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 279 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 280 dev->mphy.sband_5g.sband.vht_cap.cap |= 281 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 282 IEEE80211_VHT_CAP_SHORT_GI_160; 283 284 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 285 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 286 287 queue_work(system_wq, &dev->init_work); 288 289 return 0; 290} 291EXPORT_SYMBOL_GPL(mt7925_register_device); 292