// SPDX-License-Identifier: ISC /* Copyright (C) 2020 MediaTek Inc. */ #include #include "mt7921.h" #include "mac.h" #include "mcu.h" #include "eeprom.h" static const struct ieee80211_iface_limit if_limits[] = { { .max = MT7921_MAX_INTERFACES, .types = BIT(NL80211_IFTYPE_STATION) } }; static const struct ieee80211_iface_combination if_comb[] = { { .limits = if_limits, .n_limits = ARRAY_SIZE(if_limits), .max_interfaces = MT7921_MAX_INTERFACES, .num_different_channels = 1, .beacon_int_infra_match = true, } }; static void mt7921_regd_notifier(struct wiphy *wiphy, struct regulatory_request *request) { struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); struct mt7921_dev *dev = mt7921_hw_dev(hw); struct mt7921_phy *phy = mt7921_hw_phy(hw); memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2)); dev->mt76.region = request->dfs_region; mt7921_mutex_acquire(dev); mt76_connac_mcu_set_channel_domain(hw->priv); mt76_connac_mcu_set_rate_txpower(phy->mt76); mt7921_mutex_release(dev); } static int mt7921_init_wiphy(struct ieee80211_hw *hw) { struct mt7921_phy *phy = mt7921_hw_phy(hw); struct mt7921_dev *dev = phy->dev; struct wiphy *wiphy = hw->wiphy; hw->queues = 4; hw->max_rx_aggregation_subframes = 64; hw->max_tx_aggregation_subframes = 128; hw->netdev_features = NETIF_F_RXCSUM; hw->radiotap_timestamp.units_pos = IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; phy->slottime = 9; hw->sta_data_size = sizeof(struct mt7921_sta); hw->vif_data_size = sizeof(struct mt7921_vif); wiphy->iface_combinations = if_comb; wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP | WIPHY_FLAG_4ADDR_STATION); wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN; wiphy->max_scan_ssids = 4; wiphy->max_sched_scan_plan_interval = MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL; wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN; wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID; wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH; wiphy->max_sched_scan_reqs = 1; wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; wiphy->reg_notifier = mt7921_regd_notifier; wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL); ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); ieee80211_hw_set(hw, HAS_RATE_CONTROL); ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); ieee80211_hw_set(hw, WANT_MONITOR_VIF); ieee80211_hw_set(hw, SUPPORTS_PS); ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); if (dev->pm.enable) ieee80211_hw_set(hw, CONNECTION_MONITOR); hw->max_tx_fragments = 4; return 0; } static void mt7921_mac_init_band(struct mt7921_dev *dev, u8 band) { mt76_rmw_field(dev, MT_TMAC_CTCR0(band), MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f); mt76_set(dev, MT_TMAC_CTCR0(band), MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN | MT_TMAC_CTCR0_INS_DDLMT_EN); mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN); /* enable MIB tx-rx time reporting */ mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_TXDUR_EN); mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_RXDUR_EN); mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536); /* disable rx rate report by default due to hw issues */ mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN); } int mt7921_mac_init(struct mt7921_dev *dev) { int i; mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); /* enable hardware de-agg */ mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); /* enable hardware rx header translation */ mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN); for (i = 0; i < MT7921_WTBL_SIZE; i++) mt7921_mac_wtbl_update(dev, i, MT_WTBL_UPDATE_ADM_COUNT_CLEAR); for (i = 0; i < 2; i++) mt7921_mac_init_band(dev, i); dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0)); return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); } EXPORT_SYMBOL_GPL(mt7921_mac_init); static int __mt7921_init_hardware(struct mt7921_dev *dev) { int ret; /* force firmware operation mode into normal state, * which should be set before firmware download stage. */ mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE); ret = mt7921_mcu_init(dev); if (ret) goto out; mt76_eeprom_override(&dev->mphy); ret = mt7921_mcu_set_eeprom(dev); if (ret) goto out; ret = mt7921_mac_init(dev); out: return ret; } static int mt7921_init_hardware(struct mt7921_dev *dev) { int ret, idx, i; set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); for (i = 0; i < MT7921_MCU_INIT_RETRY_COUNT; i++) { ret = __mt7921_init_hardware(dev); if (!ret) break; mt7921_init_reset(dev); } if (i == MT7921_MCU_INIT_RETRY_COUNT) { dev_err(dev->mt76.dev, "hardware init failed\n"); return ret; } /* Beacon and mgmt frames should occupy wcid 0 */ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1); if (idx) return -ENOSPC; dev->mt76.global_wcid.idx = idx; dev->mt76.global_wcid.hw_key_idx = -1; dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET; rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid); return 0; } int mt7921_register_device(struct mt7921_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); int ret; dev->phy.dev = dev; dev->phy.mt76 = &dev->mt76.phy; dev->mt76.phy.priv = &dev->phy; dev->mt76.tx_worker.fn = mt7921_tx_worker; INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work); INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work); spin_lock_init(&dev->pm.wake.lock); mutex_init(&dev->pm.mutex); init_waitqueue_head(&dev->pm.wait); if (mt76_is_sdio(&dev->mt76)) init_waitqueue_head(&dev->mt76.sdio.wait); spin_lock_init(&dev->pm.txq_lock); INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work); INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work); INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work); skb_queue_head_init(&dev->phy.scan_event_list); skb_queue_head_init(&dev->coredump.msg_list); INIT_LIST_HEAD(&dev->sta_poll_list); spin_lock_init(&dev->sta_poll_lock); INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); dev->pm.idle_timeout = MT7921_PM_TIMEOUT; dev->pm.stats.last_wake_event = jiffies; dev->pm.stats.last_doze_event = jiffies; /* TODO: mt7921s run sleep mode on default */ if (mt76_is_mmio(&dev->mt76)) { dev->pm.enable = true; dev->pm.ds_enable = true; } if (mt76_is_sdio(&dev->mt76)) hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; ret = mt7921_init_hardware(dev); if (ret) return ret; ret = mt7921_init_wiphy(hw); if (ret) return ret; dev->mphy.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING | IEEE80211_HT_CAP_MAX_AMSDU; dev->mphy.sband_5g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING | IEEE80211_HT_CAP_MAX_AMSDU; dev->mphy.sband_5g.sband.vht_cap.cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE | (3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT); if (is_mt7922(&dev->mt76)) dev->mphy.sband_5g.sband.vht_cap.cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ | IEEE80211_VHT_CAP_SHORT_GI_160; dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask; dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask; mt76_set_stream_caps(&dev->mphy, true); mt7921_set_stream_he_caps(&dev->phy); ret = mt76_register_device(&dev->mt76, true, mt76_rates, ARRAY_SIZE(mt76_rates)); if (ret) return ret; ret = mt7921_init_debugfs(dev); if (ret) return ret; ret = mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable); if (ret) return ret; dev->hw_init_done = true; return 0; } EXPORT_SYMBOL_GPL(mt7921_register_device);