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 13 static 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 } 36 static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7925_thermal_temp, 0); 37 38 static struct attribute *mt7925_hwmon_attrs[] = { 39 &sensor_dev_attr_temp1_input.dev_attr.attr, 40 NULL, 41 }; 42 ATTRIBUTE_GROUPS(mt7925_hwmon); 43 44 static 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 } 60 61 void mt7925_regd_update(struct mt792x_dev *dev) 62 { 63 struct mt76_dev *mdev = &dev->mt76; 64 struct ieee80211_hw *hw = mdev->hw; 65 66 mt7925_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env); 67 mt7925_mcu_set_channel_domain(hw->priv); 68 mt7925_set_tx_sar_pwr(hw, NULL); 69 } 70 EXPORT_SYMBOL_GPL(mt7925_regd_update); 71 72 static void 73 mt7925_regd_notifier(struct wiphy *wiphy, 74 struct regulatory_request *req) 75 { 76 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 77 struct mt792x_dev *dev = mt792x_hw_dev(hw); 78 struct mt76_dev *mdev = &dev->mt76; 79 struct mt76_connac_pm *pm = &dev->pm; 80 81 /* allow world regdom at the first boot only */ 82 if (!memcmp(req->alpha2, "00", 2) && 83 mdev->alpha2[0] && mdev->alpha2[1]) 84 return; 85 86 /* do not need to update the same country twice */ 87 if (!memcmp(req->alpha2, mdev->alpha2, 2) && 88 dev->country_ie_env == req->country_ie_env) 89 return; 90 91 memcpy(mdev->alpha2, req->alpha2, 2); 92 mdev->region = req->dfs_region; 93 dev->country_ie_env = req->country_ie_env; 94 95 if (pm->suspended) 96 return; 97 98 dev->regd_in_progress = true; 99 mt792x_mutex_acquire(dev); 100 mt7925_regd_update(dev); 101 mt792x_mutex_release(dev); 102 dev->regd_in_progress = false; 103 wake_up(&dev->wait); 104 } 105 106 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 107 { 108 int i; 109 110 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 111 u16 rate = mt76_rates[i].hw_value; 112 u16 idx = MT792x_BASIC_RATES_TBL + i; 113 114 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 115 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 116 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 117 } 118 } 119 120 int mt7925_mac_init(struct mt792x_dev *dev) 121 { 122 int i; 123 124 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 125 /* enable hardware de-agg */ 126 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 127 128 for (i = 0; i < MT792x_WTBL_SIZE; i++) 129 mt7925_mac_wtbl_update(dev, i, 130 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 131 for (i = 0; i < 2; i++) 132 mt792x_mac_init_band(dev, i); 133 134 mt7925_mac_init_basic_rates(dev); 135 136 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 137 138 return 0; 139 } 140 EXPORT_SYMBOL_GPL(mt7925_mac_init); 141 142 static int __mt7925_init_hardware(struct mt792x_dev *dev) 143 { 144 int ret; 145 146 ret = mt792x_mcu_init(dev); 147 if (ret) 148 goto out; 149 150 mt76_eeprom_override(&dev->mphy); 151 152 ret = mt7925_mcu_set_eeprom(dev); 153 if (ret) 154 goto out; 155 156 ret = mt7925_mac_init(dev); 157 if (ret) 158 goto out; 159 160 out: 161 return ret; 162 } 163 164 static int mt7925_init_hardware(struct mt792x_dev *dev) 165 { 166 int ret, i; 167 168 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 169 170 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 171 ret = __mt7925_init_hardware(dev); 172 if (!ret) 173 break; 174 175 mt792x_init_reset(dev); 176 } 177 178 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 179 dev_err(dev->mt76.dev, "hardware init failed\n"); 180 return ret; 181 } 182 183 return 0; 184 } 185 186 static void mt7925_init_work(struct work_struct *work) 187 { 188 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 189 init_work); 190 int ret; 191 192 ret = mt7925_init_hardware(dev); 193 if (ret) 194 return; 195 196 mt76_set_stream_caps(&dev->mphy, true); 197 mt7925_set_stream_he_eht_caps(&dev->phy); 198 mt792x_config_mac_addr_list(dev); 199 200 ret = mt7925_init_mlo_caps(&dev->phy); 201 if (ret) { 202 dev_err(dev->mt76.dev, "MLO init failed\n"); 203 return; 204 } 205 206 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 207 ARRAY_SIZE(mt76_rates)); 208 if (ret) { 209 dev_err(dev->mt76.dev, "register device failed\n"); 210 return; 211 } 212 213 ret = mt7925_init_debugfs(dev); 214 if (ret) { 215 dev_err(dev->mt76.dev, "register debugfs failed\n"); 216 return; 217 } 218 219 ret = mt7925_thermal_init(&dev->phy); 220 if (ret) { 221 dev_err(dev->mt76.dev, "thermal init failed\n"); 222 return; 223 } 224 225 /* we support chip reset now */ 226 dev->hw_init_done = true; 227 228 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 229 } 230 231 int mt7925_register_device(struct mt792x_dev *dev) 232 { 233 struct ieee80211_hw *hw = mt76_hw(dev); 234 int ret; 235 236 dev->phy.dev = dev; 237 dev->phy.mt76 = &dev->mt76.phy; 238 dev->mt76.phy.priv = &dev->phy; 239 dev->mt76.tx_worker.fn = mt792x_tx_worker; 240 241 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 242 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 243 spin_lock_init(&dev->pm.wake.lock); 244 mutex_init(&dev->pm.mutex); 245 init_waitqueue_head(&dev->pm.wait); 246 init_waitqueue_head(&dev->wait); 247 spin_lock_init(&dev->pm.txq_lock); 248 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 249 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 250 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 251 #if IS_ENABLED(CONFIG_IPV6) 252 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 253 skb_queue_head_init(&dev->ipv6_ns_list); 254 #endif 255 skb_queue_head_init(&dev->phy.scan_event_list); 256 skb_queue_head_init(&dev->coredump.msg_list); 257 258 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 259 INIT_WORK(&dev->init_work, mt7925_init_work); 260 261 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 262 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 263 init_waitqueue_head(&dev->phy.roc_wait); 264 265 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 266 dev->pm.stats.last_wake_event = jiffies; 267 dev->pm.stats.last_doze_event = jiffies; 268 if (!mt76_is_usb(&dev->mt76)) { 269 dev->pm.enable_user = true; 270 dev->pm.enable = true; 271 dev->pm.ds_enable_user = true; 272 dev->pm.ds_enable = true; 273 } 274 275 if (!mt76_is_mmio(&dev->mt76)) 276 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 277 278 mt792x_init_acpi_sar(dev); 279 280 ret = mt792x_init_wcid(dev); 281 if (ret) 282 return ret; 283 284 ret = mt792x_init_wiphy(hw); 285 if (ret) 286 return ret; 287 288 hw->wiphy->reg_notifier = mt7925_regd_notifier; 289 dev->mphy.sband_2g.sband.ht_cap.cap |= 290 IEEE80211_HT_CAP_LDPC_CODING | 291 IEEE80211_HT_CAP_MAX_AMSDU; 292 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 293 IEEE80211_HT_MPDU_DENSITY_2; 294 dev->mphy.sband_5g.sband.ht_cap.cap |= 295 IEEE80211_HT_CAP_LDPC_CODING | 296 IEEE80211_HT_CAP_MAX_AMSDU; 297 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 298 IEEE80211_HT_MPDU_DENSITY_1; 299 dev->mphy.sband_5g.sband.vht_cap.cap |= 300 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 301 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 302 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 303 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 304 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 305 dev->mphy.sband_5g.sband.vht_cap.cap |= 306 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 307 IEEE80211_VHT_CAP_SHORT_GI_160; 308 309 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 310 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 311 312 queue_work(system_wq, &dev->init_work); 313 314 return 0; 315 } 316 EXPORT_SYMBOL_GPL(mt7925_register_device); 317