1 // SPDX-License-Identifier: BSD-3-Clause-Clear 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 #include "regd.h" 13 14 static ssize_t mt7921_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 = mt7921_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, mt7921_thermal_temp, 0); 38 39 static struct attribute *mt7921_hwmon_attrs[] = { 40 &sensor_dev_attr_temp1_input.dev_attr.attr, 41 NULL, 42 }; 43 ATTRIBUTE_GROUPS(mt7921_hwmon); 44 45 static int mt7921_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, "mt7921_%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 mt7921_hwmon_groups); 61 return PTR_ERR_OR_ZERO(hwmon); 62 } 63 64 int mt7921_mac_init(struct mt792x_dev *dev) 65 { 66 int i; 67 68 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 69 /* enable hardware de-agg */ 70 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 71 /* enable hardware rx header translation */ 72 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); 73 74 for (i = 0; i < MT792x_WTBL_SIZE; i++) 75 mt7921_mac_wtbl_update(dev, i, 76 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 77 for (i = 0; i < 2; i++) 78 mt792x_mac_init_band(dev, i); 79 80 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); 81 } 82 EXPORT_SYMBOL_GPL(mt7921_mac_init); 83 84 static int __mt7921_init_hardware(struct mt792x_dev *dev) 85 { 86 int ret; 87 88 /* force firmware operation mode into normal state, 89 * which should be set before firmware download stage. 90 */ 91 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 92 ret = mt792x_mcu_init(dev); 93 if (ret) 94 goto out; 95 96 ret = mt76_eeprom_override(&dev->mphy); 97 if (ret) 98 goto out; 99 100 ret = mt7921_mcu_set_eeprom(dev); 101 if (ret) 102 goto out; 103 104 ret = mt7921_mac_init(dev); 105 out: 106 return ret; 107 } 108 109 static int mt7921_init_hardware(struct mt792x_dev *dev) 110 { 111 int ret, i; 112 113 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 114 115 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 116 ret = __mt7921_init_hardware(dev); 117 if (!ret) 118 break; 119 120 mt792x_init_reset(dev); 121 } 122 123 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 124 dev_err(dev->mt76.dev, "hardware init failed\n"); 125 return ret; 126 } 127 128 return 0; 129 } 130 131 static void mt7921_init_work(struct work_struct *work) 132 { 133 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 134 init_work); 135 int ret; 136 137 ret = mt7921_init_hardware(dev); 138 if (ret) 139 return; 140 141 mt76_set_stream_caps(&dev->mphy, true); 142 mt7921_set_stream_he_caps(&dev->phy); 143 mt792x_config_mac_addr_list(dev); 144 145 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 146 ARRAY_SIZE(mt76_rates)); 147 if (ret) { 148 dev_err(dev->mt76.dev, "register device failed\n"); 149 return; 150 } 151 152 ret = mt7921_init_debugfs(dev); 153 if (ret) { 154 dev_err(dev->mt76.dev, "register debugfs failed\n"); 155 return; 156 } 157 158 ret = mt7921_thermal_init(&dev->phy); 159 if (ret) { 160 dev_err(dev->mt76.dev, "thermal init failed\n"); 161 return; 162 } 163 164 /* we support chip reset now */ 165 dev->hw_init_done = true; 166 167 mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); 168 } 169 170 int mt7921_register_device(struct mt792x_dev *dev) 171 { 172 struct ieee80211_hw *hw = mt76_hw(dev); 173 int ret; 174 175 dev->phy.dev = dev; 176 dev->phy.mt76 = &dev->mt76.phy; 177 dev->mt76.phy.priv = &dev->phy; 178 dev->mt76.tx_worker.fn = mt792x_tx_worker; 179 180 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 181 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 182 spin_lock_init(&dev->pm.wake.lock); 183 mutex_init(&dev->pm.mutex); 184 init_waitqueue_head(&dev->pm.wait); 185 init_waitqueue_head(&dev->wait); 186 if (mt76_is_sdio(&dev->mt76)) 187 init_waitqueue_head(&dev->mt76.sdio.wait); 188 spin_lock_init(&dev->pm.txq_lock); 189 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 190 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); 191 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); 192 #if IS_ENABLED(CONFIG_IPV6) 193 INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work); 194 skb_queue_head_init(&dev->ipv6_ns_list); 195 #endif 196 skb_queue_head_init(&dev->phy.scan_event_list); 197 skb_queue_head_init(&dev->coredump.msg_list); 198 199 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); 200 INIT_WORK(&dev->init_work, mt7921_init_work); 201 202 INIT_WORK(&dev->phy.roc_work, mt7921_roc_work); 203 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 204 init_waitqueue_head(&dev->phy.roc_wait); 205 206 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 207 dev->pm.stats.last_wake_event = jiffies; 208 dev->pm.stats.last_doze_event = jiffies; 209 210 if (!mt76_is_usb(&dev->mt76) && 211 !is_mt7902(&dev->mt76)) { 212 dev->pm.enable_user = true; 213 dev->pm.enable = true; 214 dev->pm.ds_enable_user = true; 215 dev->pm.ds_enable = true; 216 } 217 218 if (!mt76_is_mmio(&dev->mt76)) 219 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 220 221 mt792x_init_acpi_sar(dev); 222 223 ret = mt792x_init_wcid(dev); 224 if (ret) 225 return ret; 226 227 ret = mt792x_init_wiphy(hw); 228 if (ret) 229 return ret; 230 231 hw->wiphy->reg_notifier = mt7921_regd_notifier; 232 dev->mphy.sband_2g.sband.ht_cap.cap |= 233 IEEE80211_HT_CAP_LDPC_CODING | 234 IEEE80211_HT_CAP_MAX_AMSDU; 235 dev->mphy.sband_5g.sband.ht_cap.cap |= 236 IEEE80211_HT_CAP_LDPC_CODING | 237 IEEE80211_HT_CAP_MAX_AMSDU; 238 dev->mphy.sband_5g.sband.vht_cap.cap |= 239 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 240 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 241 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 242 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 243 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 244 if (is_mt7922(&dev->mt76)) 245 dev->mphy.sband_5g.sband.vht_cap.cap |= 246 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 247 IEEE80211_VHT_CAP_SHORT_GI_160; 248 249 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 250 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 251 252 queue_work(system_percpu_wq, &dev->init_work); 253 254 return 0; 255 } 256 EXPORT_SYMBOL_GPL(mt7921_register_device); 257