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 .max = 1, 17 .types = BIT(NL80211_IFTYPE_AP) 18 } 19 }; 20 21 static const struct ieee80211_iface_combination if_comb[] = { 22 { 23 .limits = if_limits, 24 .n_limits = ARRAY_SIZE(if_limits), 25 .max_interfaces = MT7921_MAX_INTERFACES, 26 .num_different_channels = 1, 27 .beacon_int_infra_match = true, 28 } 29 }; 30 31 static void 32 mt7921_regd_notifier(struct wiphy *wiphy, 33 struct regulatory_request *request) 34 { 35 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 36 struct mt7921_dev *dev = mt7921_hw_dev(hw); 37 38 memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2)); 39 dev->mt76.region = request->dfs_region; 40 41 mt7921_mutex_acquire(dev); 42 mt76_connac_mcu_set_channel_domain(hw->priv); 43 mt7921_set_tx_sar_pwr(hw, NULL); 44 mt7921_mutex_release(dev); 45 } 46 47 static int 48 mt7921_init_wiphy(struct ieee80211_hw *hw) 49 { 50 struct mt7921_phy *phy = mt7921_hw_phy(hw); 51 struct mt7921_dev *dev = phy->dev; 52 struct wiphy *wiphy = hw->wiphy; 53 54 hw->queues = 4; 55 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 56 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 57 hw->netdev_features = NETIF_F_RXCSUM; 58 59 hw->radiotap_timestamp.units_pos = 60 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; 61 62 phy->slottime = 9; 63 64 hw->sta_data_size = sizeof(struct mt7921_sta); 65 hw->vif_data_size = sizeof(struct mt7921_vif); 66 67 wiphy->iface_combinations = if_comb; 68 wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP | 69 WIPHY_FLAG_4ADDR_STATION); 70 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 71 BIT(NL80211_IFTYPE_AP); 72 wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); 73 wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN; 74 wiphy->max_scan_ssids = 4; 75 wiphy->max_sched_scan_plan_interval = 76 MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL; 77 wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN; 78 wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID; 79 wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH; 80 wiphy->max_sched_scan_reqs = 1; 81 wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 82 wiphy->reg_notifier = mt7921_regd_notifier; 83 84 wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 85 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; 86 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); 87 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY); 88 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT); 89 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT); 90 wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE); 91 92 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 93 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 94 ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); 95 ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); 96 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 97 ieee80211_hw_set(hw, SUPPORTS_PS); 98 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 99 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 100 ieee80211_hw_set(hw, CONNECTION_MONITOR); 101 102 if (dev->pm.enable) 103 ieee80211_hw_set(hw, CONNECTION_MONITOR); 104 105 hw->max_tx_fragments = 4; 106 107 return 0; 108 } 109 110 static void 111 mt7921_mac_init_band(struct mt7921_dev *dev, u8 band) 112 { 113 mt76_rmw_field(dev, MT_TMAC_CTCR0(band), 114 MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); 115 mt76_set(dev, MT_TMAC_CTCR0(band), 116 MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | 117 MT_TMAC_CTCR0_INS_DDLMT_EN); 118 119 mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 120 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); 121 122 /* enable MIB tx-rx time reporting */ 123 mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_TXDUR_EN); 124 mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_RXDUR_EN); 125 126 mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536); 127 /* disable rx rate report by default due to hw issues */ 128 mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN); 129 } 130 131 int mt7921_mac_init(struct mt7921_dev *dev) 132 { 133 int i; 134 135 mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); 136 /* enable hardware de-agg */ 137 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); 138 /* enable hardware rx header translation */ 139 mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); 140 141 for (i = 0; i < MT7921_WTBL_SIZE; i++) 142 mt7921_mac_wtbl_update(dev, i, 143 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 144 for (i = 0; i < 2; i++) 145 mt7921_mac_init_band(dev, i); 146 147 dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0)); 148 149 return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); 150 } 151 EXPORT_SYMBOL_GPL(mt7921_mac_init); 152 153 static int __mt7921_init_hardware(struct mt7921_dev *dev) 154 { 155 int ret; 156 157 /* force firmware operation mode into normal state, 158 * which should be set before firmware download stage. 159 */ 160 mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); 161 ret = mt7921_mcu_init(dev); 162 if (ret) 163 goto out; 164 165 mt76_eeprom_override(&dev->mphy); 166 167 ret = mt7921_mcu_set_eeprom(dev); 168 if (ret) 169 goto out; 170 171 ret = mt7921_mac_init(dev); 172 out: 173 return ret; 174 } 175 176 static int mt7921_init_hardware(struct mt7921_dev *dev) 177 { 178 int ret, i; 179 180 set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); 181 182 for (i = 0; i < MT7921_MCU_INIT_RETRY_COUNT; i++) { 183 ret = __mt7921_init_hardware(dev); 184 if (!ret) 185 break; 186 187 mt7921_init_reset(dev); 188 } 189 190 if (i == MT7921_MCU_INIT_RETRY_COUNT) { 191 dev_err(dev->mt76.dev, "hardware init failed\n"); 192 return ret; 193 } 194 195 return 0; 196 } 197 198 static int mt7921_init_wcid(struct mt7921_dev *dev) 199 { 200 int idx; 201 202 /* Beacon and mgmt frames should occupy wcid 0 */ 203 idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1); 204 if (idx) 205 return -ENOSPC; 206 207 dev->mt76.global_wcid.idx = idx; 208 dev->mt76.global_wcid.hw_key_idx = -1; 209 dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET; 210 rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); 211 212 return 0; 213 } 214 215 static void mt7921_init_work(struct work_struct *work) 216 { 217 struct mt7921_dev *dev = container_of(work, struct mt7921_dev, 218 init_work); 219 int ret; 220 221 ret = mt7921_init_hardware(dev); 222 if (ret) 223 return; 224 225 mt76_set_stream_caps(&dev->mphy, true); 226 mt7921_set_stream_he_caps(&dev->phy); 227 228 ret = mt76_register_device(&dev->mt76, true, mt76_rates, 229 ARRAY_SIZE(mt76_rates)); 230 if (ret) { 231 dev_err(dev->mt76.dev, "register device failed\n"); 232 return; 233 } 234 235 ret = mt7921_init_debugfs(dev); 236 if (ret) { 237 dev_err(dev->mt76.dev, "register debugfs failed\n"); 238 return; 239 } 240 241 /* we support chip reset now */ 242 dev->hw_init_done = true; 243 244 mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); 245 } 246 247 int mt7921_register_device(struct mt7921_dev *dev) 248 { 249 struct ieee80211_hw *hw = mt76_hw(dev); 250 int ret; 251 252 dev->phy.dev = dev; 253 dev->phy.mt76 = &dev->mt76.phy; 254 dev->mt76.phy.priv = &dev->phy; 255 dev->mt76.tx_worker.fn = mt7921_tx_worker; 256 257 INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work); 258 INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work); 259 spin_lock_init(&dev->pm.wake.lock); 260 mutex_init(&dev->pm.mutex); 261 init_waitqueue_head(&dev->pm.wait); 262 if (mt76_is_sdio(&dev->mt76)) 263 init_waitqueue_head(&dev->mt76.sdio.wait); 264 spin_lock_init(&dev->pm.txq_lock); 265 INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); 266 INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); 267 INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); 268 #if IS_ENABLED(CONFIG_IPV6) 269 INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work); 270 skb_queue_head_init(&dev->ipv6_ns_list); 271 #endif 272 skb_queue_head_init(&dev->phy.scan_event_list); 273 skb_queue_head_init(&dev->coredump.msg_list); 274 INIT_LIST_HEAD(&dev->sta_poll_list); 275 spin_lock_init(&dev->sta_poll_lock); 276 277 INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); 278 INIT_WORK(&dev->init_work, mt7921_init_work); 279 280 dev->pm.idle_timeout = MT7921_PM_TIMEOUT; 281 dev->pm.stats.last_wake_event = jiffies; 282 dev->pm.stats.last_doze_event = jiffies; 283 if (!mt76_is_usb(&dev->mt76)) { 284 dev->pm.enable_user = true; 285 dev->pm.enable = true; 286 dev->pm.ds_enable_user = true; 287 dev->pm.ds_enable = true; 288 } 289 290 if (!mt76_is_mmio(&dev->mt76)) 291 hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; 292 293 mt7921_init_acpi_sar(dev); 294 295 ret = mt7921_init_wcid(dev); 296 if (ret) 297 return ret; 298 299 ret = mt7921_init_wiphy(hw); 300 if (ret) 301 return ret; 302 303 dev->mphy.sband_2g.sband.ht_cap.cap |= 304 IEEE80211_HT_CAP_LDPC_CODING | 305 IEEE80211_HT_CAP_MAX_AMSDU; 306 dev->mphy.sband_5g.sband.ht_cap.cap |= 307 IEEE80211_HT_CAP_LDPC_CODING | 308 IEEE80211_HT_CAP_MAX_AMSDU; 309 dev->mphy.sband_5g.sband.vht_cap.cap |= 310 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | 311 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | 312 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 313 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | 314 (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); 315 if (is_mt7922(&dev->mt76)) 316 dev->mphy.sband_5g.sband.vht_cap.cap |= 317 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | 318 IEEE80211_VHT_CAP_SHORT_GI_160; 319 320 dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; 321 dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; 322 323 queue_work(system_wq, &dev->init_work); 324 325 return 0; 326 } 327 EXPORT_SYMBOL_GPL(mt7921_register_device); 328