1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2023 MediaTek Inc. */ 3 4 #include <linux/etherdevice.h> 5 #include <linux/firmware.h> 6 #include "mt7925.h" 7 #include "mac.h" 8 #include "mcu.h" 9 10 static void 11 mt7925_regd_notifier(struct wiphy *wiphy, 12 struct regulatory_request *req) 13 { 14 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 15 struct mt792x_dev *dev = mt792x_hw_dev(hw); 16 struct mt76_dev *mdev = &dev->mt76; 17 18 /* allow world regdom at the first boot only */ 19 if (!memcmp(req->alpha2, "00", 2) && 20 mdev->alpha2[0] && mdev->alpha2[1]) 21 return; 22 23 /* do not need to update the same country twice */ 24 if (!memcmp(req->alpha2, mdev->alpha2, 2) && 25 dev->country_ie_env == req->country_ie_env) 26 return; 27 28 memcpy(mdev->alpha2, req->alpha2, 2); 29 mdev->region = req->dfs_region; 30 dev->country_ie_env = req->country_ie_env; 31 32 mt792x_mutex_acquire(dev); 33 mt7925_mcu_set_clc(dev, req->alpha2, req->country_ie_env); 34 mt7925_mcu_set_channel_domain(hw->priv); 35 mt7925_set_tx_sar_pwr(hw, NULL); 36 mt792x_mutex_release(dev); 37 } 38 39 static void mt7925_mac_init_basic_rates(struct mt792x_dev *dev) 40 { 41 int i; 42 43 for (i = 0; i < ARRAY_SIZE(mt76_rates); i++) { 44 u16 rate = mt76_rates[i].hw_value; 45 u16 idx = MT792x_BASIC_RATES_TBL + i; 46 47 rate = FIELD_PREP(MT_TX_RATE_MODE, rate >> 8) | 48 FIELD_PREP(MT_TX_RATE_IDX, rate & GENMASK(7, 0)); 49 mt7925_mac_set_fixed_rate_table(dev, idx, rate); 50 } 51 } 52 53 int mt7925_mac_init(struct mt792x_dev *dev) 54 { 55 int i; 56 57 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 58 /* enable hardware de-agg */ 59 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 60 61 for (i = 0; i < MT792x_WTBL_SIZE; i++) 62 mt7925_mac_wtbl_update(dev, i, 63 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 64 for (i = 0; i < 2; i++) 65 mt792x_mac_init_band(dev, i); 66 67 mt7925_mac_init_basic_rates(dev); 68 69 memzero_explicit(&dev->mt76.alpha2, sizeof(dev->mt76.alpha2)); 70 71 return 0; 72 } 73 EXPORT_SYMBOL_GPL(mt7925_mac_init); 74 75 static int __mt7925_init_hardware(struct mt792x_dev *dev) 76 { 77 int ret; 78 79 ret = mt792x_mcu_init(dev); 80 if (ret) 81 goto out; 82 83 mt76_eeprom_override(&dev->mphy); 84 85 ret = mt7925_mcu_set_eeprom(dev); 86 if (ret) 87 goto out; 88 89 ret = mt7925_mac_init(dev); 90 if (ret) 91 goto out; 92 93 out: 94 return ret; 95 } 96 97 static int mt7925_init_hardware(struct mt792x_dev *dev) 98 { 99 int ret, i; 100 101 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 102 103 for (i = 0; i < MT792x_MCU_INIT_RETRY_COUNT; i++) { 104 ret = __mt7925_init_hardware(dev); 105 if (!ret) 106 break; 107 108 mt792x_init_reset(dev); 109 } 110 111 if (i == MT792x_MCU_INIT_RETRY_COUNT) { 112 dev_err(dev->mt76.dev, "hardware init failed\n"); 113 return ret; 114 } 115 116 return 0; 117 } 118 119 static void mt7925_init_work(struct work_struct *work) 120 { 121 struct mt792x_dev *dev = container_of(work, struct mt792x_dev, 122 init_work); 123 int ret; 124 125 ret = mt7925_init_hardware(dev); 126 if (ret) 127 return; 128 129 mt76_set_stream_caps(&dev->mphy, true); 130 mt7925_set_stream_he_eht_caps(&dev->phy); 131 132 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 133 ARRAY_SIZE(mt76_rates)); 134 if (ret) { 135 dev_err(dev->mt76.dev, "register device failed\n"); 136 return; 137 } 138 139 ret = mt7925_init_debugfs(dev); 140 if (ret) { 141 dev_err(dev->mt76.dev, "register debugfs failed\n"); 142 return; 143 } 144 145 /* we support chip reset now */ 146 dev->hw_init_done = true; 147 148 mt7925_mcu_set_deep_sleep(dev, dev->pm.ds_enable); 149 } 150 151 int mt7925_register_device(struct mt792x_dev *dev) 152 { 153 struct ieee80211_hw *hw = mt76_hw(dev); 154 int ret; 155 156 dev->phy.dev = dev; 157 dev->phy.mt76 = &dev->mt76.phy; 158 dev->mt76.phy.priv = &dev->phy; 159 dev->mt76.tx_worker.fn = mt792x_tx_worker; 160 161 INIT_DELAYED_WORK(&dev->pm.ps_work, mt792x_pm_power_save_work); 162 INIT_WORK(&dev->pm.wake_work, mt792x_pm_wake_work); 163 spin_lock_init(&dev->pm.wake.lock); 164 mutex_init(&dev->pm.mutex); 165 init_waitqueue_head(&dev->pm.wait); 166 spin_lock_init(&dev->pm.txq_lock); 167 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt792x_mac_work); 168 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7925_scan_work); 169 INIT_DELAYED_WORK(&dev->coredump.work, mt7925_coredump_work); 170 #if IS_ENABLED(CONFIG_IPV6) 171 INIT_WORK(&dev->ipv6_ns_work, mt7925_set_ipv6_ns_work); 172 skb_queue_head_init(&dev->ipv6_ns_list); 173 #endif 174 skb_queue_head_init(&dev->phy.scan_event_list); 175 skb_queue_head_init(&dev->coredump.msg_list); 176 177 INIT_WORK(&dev->reset_work, mt7925_mac_reset_work); 178 INIT_WORK(&dev->init_work, mt7925_init_work); 179 180 INIT_WORK(&dev->phy.roc_work, mt7925_roc_work); 181 timer_setup(&dev->phy.roc_timer, mt792x_roc_timer, 0); 182 init_waitqueue_head(&dev->phy.roc_wait); 183 184 dev->pm.idle_timeout = MT792x_PM_TIMEOUT; 185 dev->pm.stats.last_wake_event = jiffies; 186 dev->pm.stats.last_doze_event = jiffies; 187 if (!mt76_is_usb(&dev->mt76)) { 188 dev->pm.enable_user = true; 189 dev->pm.enable = true; 190 dev->pm.ds_enable_user = true; 191 dev->pm.ds_enable = true; 192 } 193 194 if (!mt76_is_mmio(&dev->mt76)) 195 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 196 197 mt792x_init_acpi_sar(dev); 198 199 ret = mt792x_init_wcid(dev); 200 if (ret) 201 return ret; 202 203 ret = mt792x_init_wiphy(hw); 204 if (ret) 205 return ret; 206 207 hw->wiphy->reg_notifier = mt7925_regd_notifier; 208 dev->mphy.sband_2g.sband.ht_cap.cap |= 209 IEEE80211_HT_CAP_LDPC_CODING | 210 IEEE80211_HT_CAP_MAX_AMSDU; 211 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 212 IEEE80211_HT_MPDU_DENSITY_2; 213 dev->mphy.sband_5g.sband.ht_cap.cap |= 214 IEEE80211_HT_CAP_LDPC_CODING | 215 IEEE80211_HT_CAP_MAX_AMSDU; 216 dev->mphy.sband_2g.sband.ht_cap.ampdu_density = 217 IEEE80211_HT_MPDU_DENSITY_1; 218 dev->mphy.sband_5g.sband.vht_cap.cap |= 219 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 220 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 221 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 222 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 223 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 224 dev->mphy.sband_5g.sband.vht_cap.cap |= 225 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 226 IEEE80211_VHT_CAP_SHORT_GI_160; 227 228 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 229 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 230 231 queue_work(system_wq, &dev->init_work); 232 233 return 0; 234 } 235 EXPORT_SYMBOL_GPL(mt7925_register_device); 236