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 #if defined(CONFIG_HWMON) 14 static ssize_t mt7925_thermal_temp_show(struct device *dev, 15 struct device_attribute *attr, 16 char *buf) 17 { 18 switch (to_sensor_dev_attr(attr)->index) { 19 case 0: { 20 struct mt792x_phy *phy = dev_get_drvdata(dev); 21 struct mt792x_dev *mdev = phy->dev; 22 int temperature; 23 24 mt792x_mutex_acquire(mdev); 25 temperature = mt7925_mcu_get_temperature(phy); 26 mt792x_mutex_release(mdev); 27 28 if (temperature < 0) 29 return temperature; 30 /* display in millidegree Celsius */ 31 return sprintf(buf, "%u\n", temperature * 1000); 32 } 33 default: 34 return -EINVAL; 35 } 36 } 37 static SENSOR_DEVICE_ATTR_RO(temp1_input, mt7925_thermal_temp, 0); 38 39 static struct attribute *mt7925_hwmon_attrs[] = { 40 &sensor_dev_attr_temp1_input.dev_attr.attr, 41 NULL, 42 }; 43 ATTRIBUTE_GROUPS(mt7925_hwmon); 44 45 static int mt7925_thermal_init(struct mt792x_phy *phy) 46 { 47 struct wiphy *wiphy = phy->mt76->hw->wiphy; 48 struct device *hwmon; 49 const char *name; 50 51 if (!IS_REACHABLE(CONFIG_HWMON)) 52 return 0; 53 54 name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7925_%s", 55 wiphy_name(wiphy)); 56 57 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, 58 mt7925_hwmon_groups); 59 return PTR_ERR_OR_ZERO(hwmon); 60 } 61 #endif 62 63 void mt7925_regd_update(struct mt792x_dev *dev) 64 { 65 struct mt76_dev *mdev = &dev->mt76; 66 struct ieee80211_hw *hw = mdev->hw; 67 68 if (!dev->regd_change) 69 return; 70 71 mt7925_mcu_set_clc(dev, mdev->alpha2, dev->country_ie_env); 72 mt7925_mcu_set_channel_domain(hw->priv); 73 mt7925_set_tx_sar_pwr(hw, NULL); 74 dev->regd_change = false; 75 } 76 EXPORT_SYMBOL_GPL(mt7925_regd_update); 77 78 static void 79 mt7925_regd_notifier(struct wiphy *wiphy, 80 struct regulatory_request *req) 81 { 82 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 83 struct mt792x_dev *dev = mt792x_hw_dev(hw); 84 struct mt76_dev *mdev = &dev->mt76; 85 struct mt76_connac_pm *pm = &dev->pm; 86 87 /* allow world regdom at the first boot only */ 88 if (!memcmp(req->alpha2, "00", 2) && 89 mdev->alpha2[0] && mdev->alpha2[1]) 90 return; 91 92 /* do not need to update the same country twice */ 93 if (!memcmp(req->alpha2, mdev->alpha2, 2) && 94 dev->country_ie_env == req->country_ie_env) 95 return; 96 97 memcpy(mdev->alpha2, req->alpha2, 2); 98 mdev->region = req->dfs_region; 99 dev->country_ie_env = req->country_ie_env; 100 dev->regd_change = true; 101 102 if (pm->suspended) 103 return; 104 105 dev->regd_in_progress = true; 106 mt792x_mutex_acquire(dev); 107 mt7925_regd_update(dev); 108 mt792x_mutex_release(dev); 109 dev->regd_in_progress = false; 110 wake_up(&dev->wait); 111 } 112 113 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 114 { 115 int i; 116 117 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 118 u16 rate = mt76_rates[i].hw_value; 119 u16 idx = MT792x_BASIC_RATES_TBL + i; 120 121 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 122 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 123 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 124 } 125 } 126 127 int mt7925_mac_init(struct mt792x_dev *dev) 128 { 129 int i; 130 131 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 132 /* enable hardware de-agg */ 133 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 134 135 for (i = 0; i < MT792x_WTBL_SIZE; i++) 136 mt7925_mac_wtbl_update(dev, i, 137 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 138 for (i = 0; i < 2; i++) 139 mt792x_mac_init_band(dev, i); 140 141 mt7925_mac_init_basic_rates(dev); 142 143 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 144 145 return 0; 146 } 147 EXPORT_SYMBOL_GPL(mt7925_mac_init); 148 149 static int __mt7925_init_hardware(struct mt792x_dev *dev) 150 { 151 int ret; 152 153 ret = mt792x_mcu_init(dev); 154 if (ret) 155 goto out; 156 157 mt76_eeprom_override(&dev->mphy); 158 159 ret = mt7925_mcu_set_eeprom(dev); 160 if (ret) 161 goto out; 162 163 ret = mt7925_mac_init(dev); 164 if (ret) 165 goto out; 166 167 out: 168 return ret; 169 } 170 171 static int mt7925_init_hardware(struct mt792x_dev *dev) 172 { 173 int ret, i; 174 175 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 176 177 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 178 ret = __mt7925_init_hardware(dev); 179 if (!ret) 180 break; 181 182 mt792x_init_reset(dev); 183 } 184 185 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 186 dev_err(dev->mt76.dev, "hardware init failed\n"); 187 return ret; 188 } 189 190 return 0; 191 } 192 193 static void mt7925_init_work(struct work_struct *work) 194 { 195 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 196 init_work); 197 int ret; 198 199 ret = mt7925_init_hardware(dev); 200 if (ret) 201 return; 202 203 mt76_set_stream_caps(&dev->mphy, true); 204 mt7925_set_stream_he_eht_caps(&dev->phy); 205 mt792x_config_mac_addr_list(dev); 206 207 ret = mt7925_init_mlo_caps(&dev->phy); 208 if (ret) { 209 dev_err(dev->mt76.dev, "MLO init failed\n"); 210 return; 211 } 212 213 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 214 ARRAY_SIZE(mt76_rates)); 215 if (ret) { 216 dev_err(dev->mt76.dev, "register device failed\n"); 217 return; 218 } 219 220 #if !defined(__FreeBSD__) || defined(CONFIG_MT7925_DEBUGFS) 221 ret = mt7925_init_debugfs(dev); 222 if (ret) { 223 dev_err(dev->mt76.dev, "register debugfs failed\n"); 224 return; 225 } 226 #endif 227 228 #if defined(CONFIG_HWMON) 229 ret = mt7925_thermal_init(&dev->phy); 230 if (ret) { 231 dev_err(dev->mt76.dev, "thermal init failed\n"); 232 return; 233 } 234 #endif 235 236 /* we support chip reset now */ 237 dev->hw_init_done = true; 238 239 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 240 } 241 242 int mt7925_register_device(struct mt792x_dev *dev) 243 { 244 struct ieee80211_hw *hw = mt76_hw(dev); 245 int ret; 246 247 dev->phy.dev = dev; 248 dev->phy.mt76 = &dev->mt76.phy; 249 dev->mt76.phy.priv = &dev->phy; 250 dev->mt76.tx_worker.fn = mt792x_tx_worker; 251 252 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 253 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 254 spin_lock_init(&dev->pm.wake.lock); 255 mutex_init(&dev->pm.mutex); 256 init_waitqueue_head(&dev->pm.wait); 257 init_waitqueue_head(&dev->wait); 258 spin_lock_init(&dev->pm.txq_lock); 259 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 260 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 261 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 262 #if IS_ENABLED(CONFIG_IPV6) 263 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 264 skb_queue_head_init(&dev->ipv6_ns_list); 265 #endif 266 skb_queue_head_init(&dev->phy.scan_event_list); 267 skb_queue_head_init(&dev->coredump.msg_list); 268 269 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 270 INIT_WORK(&dev->init_work, mt7925_init_work); 271 272 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 273 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 274 init_waitqueue_head(&dev->phy.roc_wait); 275 276 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 277 dev->pm.stats.last_wake_event = jiffies; 278 dev->pm.stats.last_doze_event = jiffies; 279 if (!mt76_is_usb(&dev->mt76)) { 280 dev->pm.enable_user = true; 281 dev->pm.enable = true; 282 dev->pm.ds_enable_user = true; 283 dev->pm.ds_enable = true; 284 } 285 286 if (!mt76_is_mmio(&dev->mt76)) 287 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 288 289 mt792x_init_acpi_sar(dev); 290 291 ret = mt792x_init_wcid(dev); 292 if (ret) 293 return ret; 294 295 ret = mt792x_init_wiphy(hw); 296 if (ret) 297 return ret; 298 299 hw->wiphy->reg_notifier = mt7925_regd_notifier; 300 dev->mphy.sband_2g.sband.ht_cap.cap |= 301 IEEE80211_HT_CAP_LDPC_CODING | 302 IEEE80211_HT_CAP_MAX_AMSDU; 303 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 304 IEEE80211_HT_MPDU_DENSITY_2; 305 dev->mphy.sband_5g.sband.ht_cap.cap |= 306 IEEE80211_HT_CAP_LDPC_CODING | 307 IEEE80211_HT_CAP_MAX_AMSDU; 308 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 309 IEEE80211_HT_MPDU_DENSITY_1; 310 dev->mphy.sband_5g.sband.vht_cap.cap |= 311 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 312 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 313 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 314 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 315 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 316 dev->mphy.sband_5g.sband.vht_cap.cap |= 317 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 318 IEEE80211_VHT_CAP_SHORT_GI_160; 319 320 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 321 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 322 323 queue_work(system_wq, &dev->init_work); 324 325 return 0; 326 } 327 EXPORT_SYMBOL_GPL(mt7925_register_device); 328