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 void 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 79 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 80 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 81 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); 82 83 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 84 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 85 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); 86 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); 87 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 88 ieee80211_hw_set(hw, SUPPORTS_PS); 89 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 90 91 if (dev->pm.enable) 92 ieee80211_hw_set(hw, CONNECTION_MONITOR); 93 94 hw->max_tx_fragments = 4; 95 } 96 97 static void 98 mt7921_mac_init_band(struct mt7921_dev *dev, u8 band) 99 { 100 mt76_rmw_field(dev, MT_TMAC_CTCR0(band), 101 MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); 102 mt76_set(dev, MT_TMAC_CTCR0(band), 103 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | 104 MT_TMAC_CTCR0_INS_DDLMT_EN); 105 106 mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 107 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 108 109 mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536); 110 /* disable rx rate report by default due to hw issues */ 111 mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN); 112 } 113 114 int mt7921_mac_init(struct mt7921_dev *dev) 115 { 116 int i; 117 118 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 119 /* enable hardware de-agg */ 120 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 121 /* enable hardware rx header translation */ 122 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); 123 124 for (i = 0; i < MT7921_WTBL_SIZE; i++) 125 mt7921_mac_wtbl_update(dev, i, 126 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 127 for (i = 0; i < 2; i++) 128 mt7921_mac_init_band(dev, i); 129 130 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); 131 } 132 133 static int mt7921_init_hardware(struct mt7921_dev *dev) 134 { 135 int ret, idx; 136 137 ret = mt7921_dma_init(dev); 138 if (ret) 139 return ret; 140 141 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 142 143 /* force firmware operation mode into normal state, 144 * which should be set before firmware download stage. 145 */ 146 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 147 148 ret = mt7921_mcu_init(dev); 149 if (ret) 150 return ret; 151 152 ret = mt7921_eeprom_init(dev); 153 if (ret < 0) 154 return ret; 155 156 ret = mt7921_mcu_set_eeprom(dev); 157 if (ret) 158 return ret; 159 160 /* Beacon and mgmt frames should occupy wcid 0 */ 161 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1); 162 if (idx) 163 return -ENOSPC; 164 165 dev->mt76.global_wcid.idx = idx; 166 dev->mt76.global_wcid.hw_key_idx = -1; 167 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET; 168 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 169 170 return mt7921_mac_init(dev); 171 } 172 173 int mt7921_register_device(struct mt7921_dev *dev) 174 { 175 struct ieee80211_hw *hw = mt76_hw(dev); 176 int ret; 177 178 dev->phy.dev = dev; 179 dev->phy.mt76 = &dev->mt76.phy; 180 dev->mt76.phy.priv = &dev->phy; 181 dev->mt76.tx_worker.fn = mt7921_tx_worker; 182 183 INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work); 184 INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work); 185 spin_lock_init(&dev->pm.wake.lock); 186 mutex_init(&dev->pm.mutex); 187 init_waitqueue_head(&dev->pm.wait); 188 spin_lock_init(&dev->pm.txq_lock); 189 INIT_LIST_HEAD(&dev->phy.stats_list); 190 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); 191 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); 192 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); 193 skb_queue_head_init(&dev->phy.scan_event_list); 194 skb_queue_head_init(&dev->coredump.msg_list); 195 INIT_LIST_HEAD(&dev->sta_poll_list); 196 spin_lock_init(&dev->sta_poll_lock); 197 198 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); 199 200 dev->pm.idle_timeout = MT7921_PM_TIMEOUT; 201 dev->pm.stats.last_wake_event = jiffies; 202 dev->pm.stats.last_doze_event = jiffies; 203 dev->pm.enable = true; 204 dev->pm.ds_enable = true; 205 206 ret = mt7921_init_hardware(dev); 207 if (ret) 208 return ret; 209 210 mt7921_init_wiphy(hw); 211 dev->mphy.sband_2g.sband.ht_cap.cap |= 212 IEEE80211_HT_CAP_LDPC_CODING | 213 IEEE80211_HT_CAP_MAX_AMSDU; 214 dev->mphy.sband_5g.sband.ht_cap.cap |= 215 IEEE80211_HT_CAP_LDPC_CODING | 216 IEEE80211_HT_CAP_MAX_AMSDU; 217 dev->mphy.sband_5g.sband.vht_cap.cap |= 218 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | 219 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 220 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 221 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 222 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 223 224 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 225 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 226 227 mt76_set_stream_caps(&dev->mphy, true); 228 mt7921_set_stream_he_caps(&dev->phy); 229 230 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 231 ARRAY_SIZE(mt76_rates)); 232 if (ret) 233 return ret; 234 235 ret = mt7921_init_debugfs(dev); 236 if (ret) 237 return ret; 238 239 ret = mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); 240 if (ret) 241 return ret; 242 243 dev->hw_init_done = true; 244 245 return 0; 246 } 247 248 void mt7921_unregister_device(struct mt7921_dev *dev) 249 { 250 mt76_unregister_device(&dev->mt76); 251 mt7921_tx_token_put(dev); 252 mt7921_dma_cleanup(dev); 253 mt7921_mcu_exit(dev); 254 255 tasklet_disable(&dev->irq_tasklet); 256 mt76_free_device(&dev->mt76); 257 } 258