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