1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2020 MediaTek Inc. */ 3 4 #include <linux/etherdevice.h> 5 #include "mt7921.h" 6 #include "mac.h" 7 #include "mcu.h" 8 #include "eeprom.h" 9 10 static const struct ieee80211_iface_limit if_limits[] = { 11 { 12 .max = MT7921_MAX_INTERFACES, 13 .types = BIT(NL80211_IFTYPE_STATION) 14 } 15 }; 16 17 static const struct ieee80211_iface_combination if_comb[] = { 18 { 19 .limits = if_limits, 20 .n_limits = ARRAY_SIZE(if_limits), 21 .max_interfaces = MT7921_MAX_INTERFACES, 22 .num_different_channels = 1, 23 .beacon_int_infra_match = true, 24 } 25 }; 26 27 static void 28 mt7921_regd_notifier(struct wiphy *wiphy, 29 struct regulatory_request *request) 30 { 31 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 32 struct mt7921_dev *dev = mt7921_hw_dev(hw); 33 struct mt7921_phy *phy = mt7921_hw_phy(hw); 34 35 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2)); 36 dev->mt76.region = request->dfs_region; 37 38 mt7921_mutex_acquire(dev); 39 mt76_connac_mcu_set_channel_domain(hw->priv); 40 mt76_connac_mcu_set_rate_txpower(phy->mt76); 41 mt7921_mutex_release(dev); 42 } 43 44 static int 45 mt7921_init_wiphy(struct ieee80211_hw *hw) 46 { 47 struct mt7921_phy *phy = mt7921_hw_phy(hw); 48 struct mt7921_dev *dev = phy->dev; 49 struct wiphy *wiphy = hw->wiphy; 50 51 hw->queues = 4; 52 hw->max_rx_aggregation_subframes = 64; 53 hw->max_tx_aggregation_subframes = 128; 54 hw->netdev_features = NETIF_F_RXCSUM; 55 56 hw->radiotap_timestamp.units_pos = 57 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; 58 59 phy->slottime = 9; 60 61 hw->sta_data_size = sizeof(struct mt7921_sta); 62 hw->vif_data_size = sizeof(struct mt7921_vif); 63 64 wiphy->iface_combinations = if_comb; 65 wiphy->flags &= ~WIPHY_FLAG_IBSS_RSN; 66 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); 67 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); 68 wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN; 69 wiphy->max_scan_ssids = 4; 70 wiphy->max_sched_scan_plan_interval = 71 MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL; 72 wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN; 73 wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID; 74 wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH; 75 wiphy->max_sched_scan_reqs = 1; 76 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 77 wiphy->reg_notifier = mt7921_regd_notifier; 78 wiphy->sar_capa = &mt76_sar_capa; 79 80 phy->mt76->frp = devm_kcalloc(dev->mt76.dev, 81 wiphy->sar_capa->num_freq_ranges, 82 sizeof(struct mt76_freq_range_power), 83 GFP_KERNEL); 84 if (!phy->mt76->frp) 85 return -ENOMEM; 86 87 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 88 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 89 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); 90 91 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 92 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 93 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); 94 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); 95 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 96 ieee80211_hw_set(hw, SUPPORTS_PS); 97 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 98 99 if (dev->pm.enable) 100 ieee80211_hw_set(hw, CONNECTION_MONITOR); 101 102 hw->max_tx_fragments = 4; 103 104 return 0; 105 } 106 107 static void 108 mt7921_mac_init_band(struct mt7921_dev *dev, u8 band) 109 { 110 mt76_rmw_field(dev, MT_TMAC_CTCR0(band), 111 MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); 112 mt76_set(dev, MT_TMAC_CTCR0(band), 113 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | 114 MT_TMAC_CTCR0_INS_DDLMT_EN); 115 116 mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 117 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 118 119 /* enable MIB tx-rx time reporting */ 120 mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_TXDUR_EN); 121 mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_RXDUR_EN); 122 123 mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536); 124 /* disable rx rate report by default due to hw issues */ 125 mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN); 126 } 127 128 int mt7921_mac_init(struct mt7921_dev *dev) 129 { 130 int i; 131 132 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 133 /* enable hardware de-agg */ 134 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 135 /* enable hardware rx header translation */ 136 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); 137 138 for (i = 0; i < MT7921_WTBL_SIZE; i++) 139 mt7921_mac_wtbl_update(dev, i, 140 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 141 for (i = 0; i < 2; i++) 142 mt7921_mac_init_band(dev, i); 143 144 dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0)); 145 146 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); 147 } 148 EXPORT_SYMBOL_GPL(mt7921_mac_init); 149 150 static int __mt7921_init_hardware(struct mt7921_dev *dev) 151 { 152 int ret; 153 154 /* force firmware operation mode into normal state, 155 * which should be set before firmware download stage. 156 */ 157 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 158 ret = mt7921_mcu_init(dev); 159 if (ret) 160 goto out; 161 162 mt76_eeprom_override(&dev->mphy); 163 164 ret = mt7921_mcu_set_eeprom(dev); 165 if (ret) 166 goto out; 167 168 ret = mt7921_mac_init(dev); 169 out: 170 return ret; 171 } 172 173 static int mt7921_init_hardware(struct mt7921_dev *dev) 174 { 175 int ret, idx, i; 176 177 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 178 179 for (i = 0; i < MT7921_MCU_INIT_RETRY_COUNT; i++) { 180 ret = __mt7921_init_hardware(dev); 181 if (!ret) 182 break; 183 184 mt7921_init_reset(dev); 185 } 186 187 if (i == MT7921_MCU_INIT_RETRY_COUNT) { 188 dev_err(dev->mt76.dev, "hardware init failed\n"); 189 return ret; 190 } 191 192 /* Beacon and mgmt frames should occupy wcid 0 */ 193 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1); 194 if (idx) 195 return -ENOSPC; 196 197 dev->mt76.global_wcid.idx = idx; 198 dev->mt76.global_wcid.hw_key_idx = -1; 199 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET; 200 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 201 202 return 0; 203 } 204 205 int mt7921_register_device(struct mt7921_dev *dev) 206 { 207 struct ieee80211_hw *hw = mt76_hw(dev); 208 int ret; 209 210 dev->phy.dev = dev; 211 dev->phy.mt76 = &dev->mt76.phy; 212 dev->mt76.phy.priv = &dev->phy; 213 dev->mt76.tx_worker.fn = mt7921_tx_worker; 214 215 INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work); 216 INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work); 217 spin_lock_init(&dev->pm.wake.lock); 218 mutex_init(&dev->pm.mutex); 219 init_waitqueue_head(&dev->pm.wait); 220 spin_lock_init(&dev->pm.txq_lock); 221 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); 222 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); 223 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); 224 skb_queue_head_init(&dev->phy.scan_event_list); 225 skb_queue_head_init(&dev->coredump.msg_list); 226 INIT_LIST_HEAD(&dev->sta_poll_list); 227 spin_lock_init(&dev->sta_poll_lock); 228 229 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); 230 231 dev->pm.idle_timeout = MT7921_PM_TIMEOUT; 232 dev->pm.stats.last_wake_event = jiffies; 233 dev->pm.stats.last_doze_event = jiffies; 234 dev->pm.enable = true; 235 dev->pm.ds_enable = true; 236 237 ret = mt7921_init_hardware(dev); 238 if (ret) 239 return ret; 240 241 ret = mt7921_init_wiphy(hw); 242 if (ret) 243 return ret; 244 245 dev->mphy.sband_2g.sband.ht_cap.cap |= 246 IEEE80211_HT_CAP_LDPC_CODING | 247 IEEE80211_HT_CAP_MAX_AMSDU; 248 dev->mphy.sband_5g.sband.ht_cap.cap |= 249 IEEE80211_HT_CAP_LDPC_CODING | 250 IEEE80211_HT_CAP_MAX_AMSDU; 251 dev->mphy.sband_5g.sband.vht_cap.cap |= 252 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | 253 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 254 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 255 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 256 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 257 258 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 259 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 260 261 mt76_set_stream_caps(&dev->mphy, true); 262 mt7921_set_stream_he_caps(&dev->phy); 263 264 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 265 ARRAY_SIZE(mt76_rates)); 266 if (ret) 267 return ret; 268 269 ret = mt7921_init_debugfs(dev); 270 if (ret) 271 return ret; 272 273 ret = mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); 274 if (ret) 275 return ret; 276 277 dev->hw_init_done = true; 278 279 return 0; 280 } 281 EXPORT_SYMBOL_GPL(mt7921_register_device); 282