1 // SPDX-License-Identifier: BSD-3-Clause-Clear 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 "regd.h" 11 #include "mac.h" 12 #include "mcu.h" 13 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 if (!name) 57 return -ENOMEM; 58 59 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, 60 mt7925_hwmon_groups); 61 return PTR_ERR_OR_ZERO(hwmon); 62 } 63 64 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 65 { 66 int i; 67 68 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 69 u16 rate = mt76_rates[i].hw_value; 70 u16 idx = MT792x_BASIC_RATES_TBL + i; 71 72 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 73 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 74 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 75 } 76 } 77 78 int mt7925_mac_init(struct mt792x_dev *dev) 79 { 80 int i; 81 82 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 83 /* enable hardware de-agg */ 84 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 85 86 for (i = 0; i < MT792x_WTBL_SIZE; i++) 87 mt7925_mac_wtbl_update(dev, i, 88 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 89 for (i = 0; i < 2; i++) 90 mt792x_mac_init_band(dev, i); 91 92 mt7925_mac_init_basic_rates(dev); 93 94 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 95 96 return 0; 97 } 98 EXPORT_SYMBOL_GPL(mt7925_mac_init); 99 100 static int __mt7925_init_hardware(struct mt792x_dev *dev) 101 { 102 int ret; 103 104 ret = mt792x_mcu_init(dev); 105 if (ret) 106 goto out; 107 108 ret = mt76_eeprom_override(&dev->mphy); 109 if (ret) 110 goto out; 111 112 ret = mt7925_mcu_set_eeprom(dev); 113 if (ret) 114 goto out; 115 116 ret = mt7925_mac_init(dev); 117 if (ret) 118 goto out; 119 120 if (is_mt7927(&dev->mt76)) { 121 ret = mt7925_mcu_set_dbdc(&dev->mphy, true); 122 if (ret) { 123 dev_warn(dev->mt76.dev, 124 "MT7927 DBDC enable failed: %d\n", ret); 125 ret = 0; 126 } 127 } 128 129 out: 130 return ret; 131 } 132 133 static int mt7925_init_hardware(struct mt792x_dev *dev) 134 { 135 int ret, i; 136 137 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 138 139 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 140 if (atomic_read(&dev->mt76.bus_hung)) { 141 ret = -EIO; 142 break; 143 } 144 145 ret = __mt7925_init_hardware(dev); 146 if (!ret) 147 break; 148 149 if (atomic_read(&dev->mt76.bus_hung)) 150 break; 151 152 mt792x_init_reset(dev); 153 } 154 155 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 156 dev_err(dev->mt76.dev, "hardware init failed\n"); 157 return ret; 158 } 159 160 return 0; 161 } 162 163 static int mt7925_init_nan_cap(struct mt76_dev *mdev) 164 { 165 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); 166 const struct ieee80211_sta_he_cap *he_cap; 167 struct ieee80211_supported_band *sband; 168 struct wiphy *wiphy = mdev->hw->wiphy; 169 170 if (!(dev->fw_features & MT792x_FW_CAP_NAN)) 171 return 0; 172 173 sband = wiphy->bands[NL80211_BAND_2GHZ]; 174 if (sband) 175 wiphy->nan_capa.phy.ht = sband->ht_cap; 176 177 sband = wiphy->bands[NL80211_BAND_5GHZ]; 178 if (sband) 179 wiphy->nan_capa.phy.vht = sband->vht_cap; 180 181 sband = wiphy->bands[NL80211_BAND_2GHZ]; 182 he_cap = sband ? ieee80211_get_he_iftype_cap(sband, NL80211_IFTYPE_NAN) 183 : NULL; 184 if (he_cap) 185 wiphy->nan_capa.phy.he = *he_cap; 186 187 return 0; 188 } 189 190 static void mt7925_init_work(struct work_struct *work) 191 { 192 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 193 init_work); 194 int ret; 195 196 ret = mt7925_init_hardware(dev); 197 if (ret) 198 return; 199 200 mt76_set_stream_caps(&dev->mphy, true); 201 mt7925_set_stream_he_eht_caps(&dev->phy); 202 mt792x_config_mac_addr_list(dev); 203 204 ret = mt7925_init_mlo_caps(&dev->phy); 205 if (ret) { 206 dev_err(dev->mt76.dev, "MLO init failed\n"); 207 return; 208 } 209 210 dev->mt76.init_wiphy = mt7925_init_nan_cap; 211 212 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 213 ARRAY_SIZE(mt76_rates)); 214 if (ret) { 215 dev_err(dev->mt76.dev, "register device failed\n"); 216 return; 217 } 218 219 ret = mt7925_init_debugfs(dev); 220 if (ret) { 221 dev_err(dev->mt76.dev, "register debugfs failed\n"); 222 return; 223 } 224 225 ret = mt7925_thermal_init(&dev->phy); 226 if (ret) { 227 dev_err(dev->mt76.dev, "thermal init failed\n"); 228 return; 229 } 230 231 ret = mt7925_mcu_set_thermal_protect(dev); 232 if (ret) { 233 dev_err(dev->mt76.dev, "thermal protection enable failed\n"); 234 return; 235 } 236 237 /* we support chip reset now */ 238 dev->hw_init_done = true; 239 240 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 241 } 242 243 int mt7925_register_device(struct mt792x_dev *dev) 244 { 245 struct ieee80211_hw *hw = mt76_hw(dev); 246 int ret; 247 248 dev->phy.dev = dev; 249 dev->phy.mt76 = &dev->mt76.phy; 250 dev->mt76.phy.priv = &dev->phy; 251 dev->mt76.tx_worker.fn = mt792x_tx_worker; 252 253 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 254 INIT_DELAYED_WORK(&dev->mlo_pm_work, mt7925_mlo_pm_work); 255 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 256 spin_lock_init(&dev->pm.wake.lock); 257 mutex_init(&dev->pm.mutex); 258 init_waitqueue_head(&dev->pm.wait); 259 init_waitqueue_head(&dev->wait); 260 spin_lock_init(&dev->pm.txq_lock); 261 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 262 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 263 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 264 #if IS_ENABLED(CONFIG_IPV6) 265 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 266 skb_queue_head_init(&dev->ipv6_ns_list); 267 #endif 268 skb_queue_head_init(&dev->phy.scan_event_list); 269 skb_queue_head_init(&dev->coredump.msg_list); 270 271 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 272 INIT_WORK(&dev->init_work, mt7925_init_work); 273 274 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 275 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 276 init_waitqueue_head(&dev->phy.roc_wait); 277 278 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 279 dev->pm.stats.last_wake_event = jiffies; 280 dev->pm.stats.last_doze_event = jiffies; 281 /* MT7927: runtime PM crashes BT firmware on the shared CONNINFRA domain */ 282 if (!mt76_is_usb(&dev->mt76) && !is_mt7927(&dev->mt76)) { 283 dev->pm.enable_user = true; 284 dev->pm.enable = true; 285 dev->pm.ds_enable_user = true; 286 dev->pm.ds_enable = true; 287 } 288 289 if (!mt76_is_mmio(&dev->mt76)) 290 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 291 292 mt792x_init_acpi_sar(dev); 293 294 ret = mt792x_init_wcid(dev); 295 if (ret) 296 return ret; 297 298 ret = mt792x_init_wiphy(hw); 299 if (ret) 300 return ret; 301 302 hw->wiphy->reg_notifier = mt7925_regd_notifier; 303 dev->mphy.sband_2g.sband.ht_cap.cap |= 304 IEEE80211_HT_CAP_LDPC_CODING | 305 IEEE80211_HT_CAP_MAX_AMSDU; 306 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 307 IEEE80211_HT_MPDU_DENSITY_2; 308 dev->mphy.sband_5g.sband.ht_cap.cap |= 309 IEEE80211_HT_CAP_LDPC_CODING | 310 IEEE80211_HT_CAP_MAX_AMSDU; 311 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 312 IEEE80211_HT_MPDU_DENSITY_1; 313 dev->mphy.sband_5g.sband.vht_cap.cap |= 314 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 315 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 316 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 317 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 318 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 319 dev->mphy.sband_5g.sband.vht_cap.cap |= 320 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 321 IEEE80211_VHT_CAP_SHORT_GI_160; 322 323 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 324 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 325 326 queue_work(system_percpu_wq, &dev->init_work); 327 328 return 0; 329 } 330 EXPORT_SYMBOL_GPL(mt7925_register_device); 331