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 static void 61 mt7925_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 dev->regd_in_progress = true; 83 mt792x_mutex_acquire(dev); 84 mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env); 85 mt7925_mcu_set_channel_domain(hw->priv); 86 mt7925_set_tx_sar_pwr(hw, NULL); 87 mt792x_mutex_release(dev); 88 dev->regd_in_progress = false; 89 wake_up(&dev->wait); 90 } 91 92 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 93 { 94 int i; 95 96 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 97 u16 rate = mt76_rates[i].hw_value; 98 u16 idx = MT792x_BASIC_RATES_TBL + i; 99 100 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 101 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 102 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 103 } 104 } 105 106 int mt7925_mac_init(struct mt792x_dev *dev) 107 { 108 int i; 109 110 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 111 /* enable hardware de-agg */ 112 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 113 114 for (i = 0; i < MT792x_WTBL_SIZE; i++) 115 mt7925_mac_wtbl_update(dev, i, 116 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 117 for (i = 0; i < 2; i++) 118 mt792x_mac_init_band(dev, i); 119 120 mt7925_mac_init_basic_rates(dev); 121 122 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 123 124 return 0; 125 } 126 EXPORT_SYMBOL_GPL(mt7925_mac_init); 127 128 static int __mt7925_init_hardware(struct mt792x_dev *dev) 129 { 130 int ret; 131 132 ret = mt792x_mcu_init(dev); 133 if (ret) 134 goto out; 135 136 mt76_eeprom_override(&dev->mphy); 137 138 ret = mt7925_mcu_set_eeprom(dev); 139 if (ret) 140 goto out; 141 142 ret = mt7925_mac_init(dev); 143 if (ret) 144 goto out; 145 146 out: 147 return ret; 148 } 149 150 static int mt7925_init_hardware(struct mt792x_dev *dev) 151 { 152 int ret, i; 153 154 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 155 156 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 157 ret = __mt7925_init_hardware(dev); 158 if (!ret) 159 break; 160 161 mt792x_init_reset(dev); 162 } 163 164 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 165 dev_err(dev->mt76.dev, "hardware init failed\n"); 166 return ret; 167 } 168 169 return 0; 170 } 171 172 static void mt7925_init_work(struct work_struct *work) 173 { 174 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 175 init_work); 176 int ret; 177 178 ret = mt7925_init_hardware(dev); 179 if (ret) 180 return; 181 182 mt76_set_stream_caps(&dev->mphy, true); 183 mt7925_set_stream_he_eht_caps(&dev->phy); 184 mt792x_config_mac_addr_list(dev); 185 186 ret = mt7925_init_mlo_caps(&dev->phy); 187 if (ret) { 188 dev_err(dev->mt76.dev, "MLO init failed\n"); 189 return; 190 } 191 192 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 193 ARRAY_SIZE(mt76_rates)); 194 if (ret) { 195 dev_err(dev->mt76.dev, "register device failed\n"); 196 return; 197 } 198 199 ret = mt7925_init_debugfs(dev); 200 if (ret) { 201 dev_err(dev->mt76.dev, "register debugfs failed\n"); 202 return; 203 } 204 205 ret = mt7925_thermal_init(&dev->phy); 206 if (ret) { 207 dev_err(dev->mt76.dev, "thermal init failed\n"); 208 return; 209 } 210 211 /* we support chip reset now */ 212 dev->hw_init_done = true; 213 214 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 215 } 216 217 int mt7925_register_device(struct mt792x_dev *dev) 218 { 219 struct ieee80211_hw *hw = mt76_hw(dev); 220 int ret; 221 222 dev->phy.dev = dev; 223 dev->phy.mt76 = &dev->mt76.phy; 224 dev->mt76.phy.priv = &dev->phy; 225 dev->mt76.tx_worker.fn = mt792x_tx_worker; 226 227 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 228 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 229 spin_lock_init(&dev->pm.wake.lock); 230 mutex_init(&dev->pm.mutex); 231 init_waitqueue_head(&dev->pm.wait); 232 init_waitqueue_head(&dev->wait); 233 spin_lock_init(&dev->pm.txq_lock); 234 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 235 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 236 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 237 #if IS_ENABLED(CONFIG_IPV6) 238 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 239 skb_queue_head_init(&dev->ipv6_ns_list); 240 #endif 241 skb_queue_head_init(&dev->phy.scan_event_list); 242 skb_queue_head_init(&dev->coredump.msg_list); 243 244 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 245 INIT_WORK(&dev->init_work, mt7925_init_work); 246 247 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 248 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 249 init_waitqueue_head(&dev->phy.roc_wait); 250 251 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 252 dev->pm.stats.last_wake_event = jiffies; 253 dev->pm.stats.last_doze_event = jiffies; 254 if (!mt76_is_usb(&dev->mt76)) { 255 dev->pm.enable_user = true; 256 dev->pm.enable = true; 257 dev->pm.ds_enable_user = true; 258 dev->pm.ds_enable = true; 259 } 260 261 if (!mt76_is_mmio(&dev->mt76)) 262 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 263 264 mt792x_init_acpi_sar(dev); 265 266 ret = mt792x_init_wcid(dev); 267 if (ret) 268 return ret; 269 270 ret = mt792x_init_wiphy(hw); 271 if (ret) 272 return ret; 273 274 hw->wiphy->reg_notifier = mt7925_regd_notifier; 275 dev->mphy.sband_2g.sband.ht_cap.cap |= 276 IEEE80211_HT_CAP_LDPC_CODING | 277 IEEE80211_HT_CAP_MAX_AMSDU; 278 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 279 IEEE80211_HT_MPDU_DENSITY_2; 280 dev->mphy.sband_5g.sband.ht_cap.cap |= 281 IEEE80211_HT_CAP_LDPC_CODING | 282 IEEE80211_HT_CAP_MAX_AMSDU; 283 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 284 IEEE80211_HT_MPDU_DENSITY_1; 285 dev->mphy.sband_5g.sband.vht_cap.cap |= 286 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 287 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 288 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 289 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 290 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 291 dev->mphy.sband_5g.sband.vht_cap.cap |= 292 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 293 IEEE80211_VHT_CAP_SHORT_GI_160; 294 295 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 296 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 297 298 queue_work(system_wq, &dev->init_work); 299 300 return 0; 301 } 302 EXPORT_SYMBOL_GPL(mt7925_register_device); 303