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 if (!dev->regd_change) 67 return; 68 69 mt7925_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env); 70 mt7925_mcu_set_channel_domain(hw->priv); 71 mt7925_set_tx_sar_pwr(hw, NULL); 72 dev->regd_change = false; 73 } 74 EXPORT_SYMBOL_GPL(mt7925_regd_update); 75 76 static void 77 mt7925_regd_notifier(struct wiphy *wiphy, 78 struct regulatory_request *req) 79 { 80 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 81 struct mt792x_dev *dev = mt792x_hw_dev(hw); 82 struct mt76_dev *mdev = &dev->mt76; 83 struct mt76_connac_pm *pm = &dev->pm; 84 85 /* allow world regdom at the first boot only */ 86 if (!memcmp(req->alpha2, "00", 2) && 87 mdev->alpha2[0] && mdev->alpha2[1]) 88 return; 89 90 /* do not need to update the same country twice */ 91 if (!memcmp(req->alpha2, mdev->alpha2, 2) && 92 dev->country_ie_env == req->country_ie_env) 93 return; 94 95 memcpy(mdev->alpha2, req->alpha2, 2); 96 mdev->region = req->dfs_region; 97 dev->country_ie_env = req->country_ie_env; 98 dev->regd_change = true; 99 100 if (pm->suspended) 101 return; 102 103 dev->regd_in_progress = true; 104 mt792x_mutex_acquire(dev); 105 mt7925_regd_update(dev); 106 mt792x_mutex_release(dev); 107 dev->regd_in_progress = false; 108 wake_up(&dev->wait); 109 } 110 111 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 112 { 113 int i; 114 115 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 116 u16 rate = mt76_rates[i].hw_value; 117 u16 idx = MT792x_BASIC_RATES_TBL + i; 118 119 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 120 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 121 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 122 } 123 } 124 125 int mt7925_mac_init(struct mt792x_dev *dev) 126 { 127 int i; 128 129 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 130 /* enable hardware de-agg */ 131 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 132 133 for (i = 0; i < MT792x_WTBL_SIZE; i++) 134 mt7925_mac_wtbl_update(dev, i, 135 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 136 for (i = 0; i < 2; i++) 137 mt792x_mac_init_band(dev, i); 138 139 mt7925_mac_init_basic_rates(dev); 140 141 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 142 143 return 0; 144 } 145 EXPORT_SYMBOL_GPL(mt7925_mac_init); 146 147 static int __mt7925_init_hardware(struct mt792x_dev *dev) 148 { 149 int ret; 150 151 ret = mt792x_mcu_init(dev); 152 if (ret) 153 goto out; 154 155 mt76_eeprom_override(&dev->mphy); 156 157 ret = mt7925_mcu_set_eeprom(dev); 158 if (ret) 159 goto out; 160 161 ret = mt7925_mac_init(dev); 162 if (ret) 163 goto out; 164 165 out: 166 return ret; 167 } 168 169 static int mt7925_init_hardware(struct mt792x_dev *dev) 170 { 171 int ret, i; 172 173 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 174 175 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 176 ret = __mt7925_init_hardware(dev); 177 if (!ret) 178 break; 179 180 mt792x_init_reset(dev); 181 } 182 183 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 184 dev_err(dev->mt76.dev, "hardware init failed\n"); 185 return ret; 186 } 187 188 return 0; 189 } 190 191 static void mt7925_init_work(struct work_struct *work) 192 { 193 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 194 init_work); 195 int ret; 196 197 ret = mt7925_init_hardware(dev); 198 if (ret) 199 return; 200 201 mt76_set_stream_caps(&dev->mphy, true); 202 mt7925_set_stream_he_eht_caps(&dev->phy); 203 mt792x_config_mac_addr_list(dev); 204 205 ret = mt7925_init_mlo_caps(&dev->phy); 206 if (ret) { 207 dev_err(dev->mt76.dev, "MLO init failed\n"); 208 return; 209 } 210 211 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 212 ARRAY_SIZE(mt76_rates)); 213 if (ret) { 214 dev_err(dev->mt76.dev, "register device failed\n"); 215 return; 216 } 217 218 ret = mt7925_init_debugfs(dev); 219 if (ret) { 220 dev_err(dev->mt76.dev, "register debugfs failed\n"); 221 return; 222 } 223 224 ret = mt7925_thermal_init(&dev->phy); 225 if (ret) { 226 dev_err(dev->mt76.dev, "thermal init failed\n"); 227 return; 228 } 229 230 /* we support chip reset now */ 231 dev->hw_init_done = true; 232 233 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 234 } 235 236 int mt7925_register_device(struct mt792x_dev *dev) 237 { 238 struct ieee80211_hw *hw = mt76_hw(dev); 239 int ret; 240 241 dev->phy.dev = dev; 242 dev->phy.mt76 = &dev->mt76.phy; 243 dev->mt76.phy.priv = &dev->phy; 244 dev->mt76.tx_worker.fn = mt792x_tx_worker; 245 246 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 247 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 248 spin_lock_init(&dev->pm.wake.lock); 249 mutex_init(&dev->pm.mutex); 250 init_waitqueue_head(&dev->pm.wait); 251 init_waitqueue_head(&dev->wait); 252 spin_lock_init(&dev->pm.txq_lock); 253 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 254 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 255 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 256 #if IS_ENABLED(CONFIG_IPV6) 257 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 258 skb_queue_head_init(&dev->ipv6_ns_list); 259 #endif 260 skb_queue_head_init(&dev->phy.scan_event_list); 261 skb_queue_head_init(&dev->coredump.msg_list); 262 263 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 264 INIT_WORK(&dev->init_work, mt7925_init_work); 265 266 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 267 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 268 init_waitqueue_head(&dev->phy.roc_wait); 269 270 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 271 dev->pm.stats.last_wake_event = jiffies; 272 dev->pm.stats.last_doze_event = jiffies; 273 if (!mt76_is_usb(&dev->mt76)) { 274 dev->pm.enable_user = true; 275 dev->pm.enable = true; 276 dev->pm.ds_enable_user = true; 277 dev->pm.ds_enable = true; 278 } 279 280 if (!mt76_is_mmio(&dev->mt76)) 281 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 282 283 mt792x_init_acpi_sar(dev); 284 285 ret = mt792x_init_wcid(dev); 286 if (ret) 287 return ret; 288 289 ret = mt792x_init_wiphy(hw); 290 if (ret) 291 return ret; 292 293 hw->wiphy->reg_notifier = mt7925_regd_notifier; 294 dev->mphy.sband_2g.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_2; 299 dev->mphy.sband_5g.sband.ht_cap.cap |= 300 IEEE80211_HT_CAP_LDPC_CODING | 301 IEEE80211_HT_CAP_MAX_AMSDU; 302 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 303 IEEE80211_HT_MPDU_DENSITY_1; 304 dev->mphy.sband_5g.sband.vht_cap.cap |= 305 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 306 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 307 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 308 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 309 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 310 dev->mphy.sband_5g.sband.vht_cap.cap |= 311 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 312 IEEE80211_VHT_CAP_SHORT_GI_160; 313 314 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 315 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 316 317 queue_work(system_wq, &dev->init_work); 318 319 return 0; 320 } 321 EXPORT_SYMBOL_GPL(mt7925_register_device); 322