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 | WIPHY_FLAG_4ADDR_AP | 66 WIPHY_FLAG_4ADDR_STATION); 67 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); 68 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); 69 wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN; 70 wiphy->max_scan_ssids = 4; 71 wiphy->max_sched_scan_plan_interval = 72 MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL; 73 wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN; 74 wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID; 75 wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH; 76 wiphy->max_sched_scan_reqs = 1; 77 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 78 wiphy->reg_notifier = mt7921_regd_notifier; 79 80 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 81 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 82 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); 83 84 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 85 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 86 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); 87 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); 88 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 89 ieee80211_hw_set(hw, SUPPORTS_PS); 90 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 91 92 if (dev->pm.enable) 93 ieee80211_hw_set(hw, CONNECTION_MONITOR); 94 95 hw->max_tx_fragments = 4; 96 97 return 0; 98 } 99 100 static void 101 mt7921_mac_init_band(struct mt7921_dev *dev, u8 band) 102 { 103 mt76_rmw_field(dev, MT_TMAC_CTCR0(band), 104 MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); 105 mt76_set(dev, MT_TMAC_CTCR0(band), 106 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | 107 MT_TMAC_CTCR0_INS_DDLMT_EN); 108 109 mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 110 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 111 112 /* enable MIB tx-rx time reporting */ 113 mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_TXDUR_EN); 114 mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_RXDUR_EN); 115 116 mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536); 117 /* disable rx rate report by default due to hw issues */ 118 mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN); 119 } 120 121 int mt7921_mac_init(struct mt7921_dev *dev) 122 { 123 int i; 124 125 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 126 /* enable hardware de-agg */ 127 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 128 /* enable hardware rx header translation */ 129 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); 130 131 for (i = 0; i < MT7921_WTBL_SIZE; i++) 132 mt7921_mac_wtbl_update(dev, i, 133 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 134 for (i = 0; i < 2; i++) 135 mt7921_mac_init_band(dev, i); 136 137 dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0)); 138 139 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); 140 } 141 EXPORT_SYMBOL_GPL(mt7921_mac_init); 142 143 static int __mt7921_init_hardware(struct mt7921_dev *dev) 144 { 145 int ret; 146 147 /* force firmware operation mode into normal state, 148 * which should be set before firmware download stage. 149 */ 150 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 151 ret = mt7921_mcu_init(dev); 152 if (ret) 153 goto out; 154 155 mt76_eeprom_override(&dev->mphy); 156 157 ret = mt7921_mcu_set_eeprom(dev); 158 if (ret) 159 goto out; 160 161 ret = mt7921_mac_init(dev); 162 out: 163 return ret; 164 } 165 166 static int mt7921_init_hardware(struct mt7921_dev *dev) 167 { 168 int ret, idx, i; 169 170 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 171 172 for (i = 0; i < MT7921_MCU_INIT_RETRY_COUNT; i++) { 173 ret = __mt7921_init_hardware(dev); 174 if (!ret) 175 break; 176 177 mt7921_init_reset(dev); 178 } 179 180 if (i == MT7921_MCU_INIT_RETRY_COUNT) { 181 dev_err(dev->mt76.dev, "hardware init failed\n"); 182 return ret; 183 } 184 185 /* Beacon and mgmt frames should occupy wcid 0 */ 186 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1); 187 if (idx) 188 return -ENOSPC; 189 190 dev->mt76.global_wcid.idx = idx; 191 dev->mt76.global_wcid.hw_key_idx = -1; 192 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET; 193 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 194 195 return 0; 196 } 197 198 int mt7921_register_device(struct mt7921_dev *dev) 199 { 200 struct ieee80211_hw *hw = mt76_hw(dev); 201 int ret; 202 203 dev->phy.dev = dev; 204 dev->phy.mt76 = &dev->mt76.phy; 205 dev->mt76.phy.priv = &dev->phy; 206 dev->mt76.tx_worker.fn = mt7921_tx_worker; 207 208 INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work); 209 INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work); 210 spin_lock_init(&dev->pm.wake.lock); 211 mutex_init(&dev->pm.mutex); 212 init_waitqueue_head(&dev->pm.wait); 213 if (mt76_is_sdio(&dev->mt76)) 214 init_waitqueue_head(&dev->mt76.sdio.wait); 215 spin_lock_init(&dev->pm.txq_lock); 216 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); 217 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); 218 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); 219 skb_queue_head_init(&dev->phy.scan_event_list); 220 skb_queue_head_init(&dev->coredump.msg_list); 221 INIT_LIST_HEAD(&dev->sta_poll_list); 222 spin_lock_init(&dev->sta_poll_lock); 223 224 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); 225 226 dev->pm.idle_timeout = MT7921_PM_TIMEOUT; 227 dev->pm.stats.last_wake_event = jiffies; 228 dev->pm.stats.last_doze_event = jiffies; 229 230 /* TODO: mt7921s run sleep mode on default */ 231 if (mt76_is_mmio(&dev->mt76)) { 232 dev->pm.enable = true; 233 dev->pm.ds_enable = true; 234 } 235 236 if (mt76_is_sdio(&dev->mt76)) 237 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 238 239 ret = mt7921_init_hardware(dev); 240 if (ret) 241 return ret; 242 243 ret = mt7921_init_wiphy(hw); 244 if (ret) 245 return ret; 246 247 dev->mphy.sband_2g.sband.ht_cap.cap |= 248 IEEE80211_HT_CAP_LDPC_CODING | 249 IEEE80211_HT_CAP_MAX_AMSDU; 250 dev->mphy.sband_5g.sband.ht_cap.cap |= 251 IEEE80211_HT_CAP_LDPC_CODING | 252 IEEE80211_HT_CAP_MAX_AMSDU; 253 dev->mphy.sband_5g.sband.vht_cap.cap |= 254 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | 255 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 256 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 257 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 258 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 259 if (is_mt7922(&dev->mt76)) 260 dev->mphy.sband_5g.sband.vht_cap.cap |= 261 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 262 IEEE80211_VHT_CAP_SHORT_GI_160; 263 264 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 265 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 266 267 mt76_set_stream_caps(&dev->mphy, true); 268 mt7921_set_stream_he_caps(&dev->phy); 269 270 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 271 ARRAY_SIZE(mt76_rates)); 272 if (ret) 273 return ret; 274 275 ret = mt7921_init_debugfs(dev); 276 if (ret) 277 return ret; 278 279 ret = mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); 280 if (ret) 281 return ret; 282 283 dev->hw_init_done = true; 284 285 return 0; 286 } 287 EXPORT_SYMBOL_GPL(mt7921_register_device); 288