1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2020 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 "mt7921.h" 10 #include "../mt76_connac2_mac.h" 11 #include "mcu.h" 12 13 static ssize_t mt7921_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 = mt7921_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, mt7921_thermal_temp, 0); 37 38 static struct attribute *mt7921_hwmon_attrs[] = { 39 &sensor_dev_attr_temp1_input.dev_attr.attr, 40 NULL, 41 }; 42 ATTRIBUTE_GROUPS(mt7921_hwmon); 43 44 static int mt7921_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, "mt7921_%s", 54 wiphy_name(wiphy)); 55 if (!name) 56 return -ENOMEM; 57 58 hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, 59 mt7921_hwmon_groups); 60 if (IS_ERR(hwmon)) 61 return PTR_ERR(hwmon); 62 63 return 0; 64 } 65 66 static void 67 mt7921_regd_notifier(struct wiphy *wiphy, 68 struct regulatory_request *request) 69 { 70 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 71 struct mt792x_dev *dev = mt792x_hw_dev(hw); 72 73 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2)); 74 dev->mt76.region = request->dfs_region; 75 dev->country_ie_env = request->country_ie_env; 76 77 mt792x_mutex_acquire(dev); 78 mt7921_mcu_set_clc(dev, request->alpha2, request->country_ie_env); 79 mt76_connac_mcu_set_channel_domain(hw->priv); 80 mt7921_set_tx_sar_pwr(hw, NULL); 81 mt792x_mutex_release(dev); 82 } 83 84 int mt7921_mac_init(struct mt792x_dev *dev) 85 { 86 int i; 87 88 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 89 /* enable hardware de-agg */ 90 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 91 /* enable hardware rx header translation */ 92 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); 93 94 for (i = 0; i < MT792x_WTBL_SIZE; i++) 95 mt7921_mac_wtbl_update(dev, i, 96 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 97 for (i = 0; i < 2; i++) 98 mt792x_mac_init_band(dev, i); 99 100 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); 101 } 102 EXPORT_SYMBOL_GPL(mt7921_mac_init); 103 104 static int __mt7921_init_hardware(struct mt792x_dev *dev) 105 { 106 int ret; 107 108 /* force firmware operation mode into normal state, 109 * which should be set before firmware download stage. 110 */ 111 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 112 ret = mt792x_mcu_init(dev); 113 if (ret) 114 goto out; 115 116 mt76_eeprom_override(&dev->mphy); 117 118 ret = mt7921_mcu_set_eeprom(dev); 119 if (ret) 120 goto out; 121 122 ret = mt7921_mac_init(dev); 123 out: 124 return ret; 125 } 126 127 static int mt7921_init_hardware(struct mt792x_dev *dev) 128 { 129 int ret, i; 130 131 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 132 133 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 134 ret = __mt7921_init_hardware(dev); 135 if (!ret) 136 break; 137 138 mt792x_init_reset(dev); 139 } 140 141 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 142 dev_err(dev->mt76.dev, "hardware init failed\n"); 143 return ret; 144 } 145 146 return 0; 147 } 148 149 static void mt7921_init_work(struct work_struct *work) 150 { 151 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 152 init_work); 153 int ret; 154 155 ret = mt7921_init_hardware(dev); 156 if (ret) 157 return; 158 159 mt76_set_stream_caps(&dev->mphy, true); 160 mt7921_set_stream_he_caps(&dev->phy); 161 162 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 163 ARRAY_SIZE(mt76_rates)); 164 if (ret) { 165 dev_err(dev->mt76.dev, "register device failed\n"); 166 return; 167 } 168 169 ret = mt7921_init_debugfs(dev); 170 if (ret) { 171 dev_err(dev->mt76.dev, "register debugfs failed\n"); 172 return; 173 } 174 175 ret = mt7921_thermal_init(&dev->phy); 176 if (ret) { 177 dev_err(dev->mt76.dev, "thermal init failed\n"); 178 return; 179 } 180 181 /* we support chip reset now */ 182 dev->hw_init_done = true; 183 184 mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); 185 } 186 187 int mt7921_register_device(struct mt792x_dev *dev) 188 { 189 struct ieee80211_hw *hw = mt76_hw(dev); 190 int ret; 191 192 dev->phy.dev = dev; 193 dev->phy.mt76 = &dev->mt76.phy; 194 dev->mt76.phy.priv = &dev->phy; 195 dev->mt76.tx_worker.fn = mt792x_tx_worker; 196 197 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 198 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 199 spin_lock_init(&dev->pm.wake.lock); 200 mutex_init(&dev->pm.mutex); 201 init_waitqueue_head(&dev->pm.wait); 202 if (mt76_is_sdio(&dev->mt76)) 203 init_waitqueue_head(&dev->mt76.sdio.wait); 204 spin_lock_init(&dev->pm.txq_lock); 205 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 206 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); 207 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); 208 #if IS_ENABLED(CONFIG_IPV6) 209 INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work); 210 skb_queue_head_init(&dev->ipv6_ns_list); 211 #endif 212 skb_queue_head_init(&dev->phy.scan_event_list); 213 skb_queue_head_init(&dev->coredump.msg_list); 214 215 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); 216 INIT_WORK(&dev->init_work, mt7921_init_work); 217 218 INIT_WORK(&dev->phy.roc_work, mt7921_roc_work); 219 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 220 init_waitqueue_head(&dev->phy.roc_wait); 221 222 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 223 dev->pm.stats.last_wake_event = jiffies; 224 dev->pm.stats.last_doze_event = jiffies; 225 if (!mt76_is_usb(&dev->mt76)) { 226 dev->pm.enable_user = true; 227 dev->pm.enable = true; 228 dev->pm.ds_enable_user = true; 229 dev->pm.ds_enable = true; 230 } 231 232 if (!mt76_is_mmio(&dev->mt76)) 233 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 234 235 mt792x_init_acpi_sar(dev); 236 237 ret = mt792x_init_wcid(dev); 238 if (ret) 239 return ret; 240 241 ret = mt792x_init_wiphy(hw); 242 if (ret) 243 return ret; 244 245 hw->wiphy->reg_notifier = mt7921_regd_notifier; 246 dev->mphy.sband_2g.sband.ht_cap.cap |= 247 IEEE80211_HT_CAP_LDPC_CODING | 248 IEEE80211_HT_CAP_MAX_AMSDU; 249 dev->mphy.sband_5g.sband.ht_cap.cap |= 250 IEEE80211_HT_CAP_LDPC_CODING | 251 IEEE80211_HT_CAP_MAX_AMSDU; 252 dev->mphy.sband_5g.sband.vht_cap.cap |= 253 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 254 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 255 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 256 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 257 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 258 if (is_mt7922(&dev->mt76)) 259 dev->mphy.sband_5g.sband.vht_cap.cap |= 260 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 261 IEEE80211_VHT_CAP_SHORT_GI_160; 262 263 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 264 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 265 266 queue_work(system_wq, &dev->init_work); 267 268 return 0; 269 } 270 EXPORT_SYMBOL_GPL(mt7921_register_device); 271