diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/init.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/init.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c new file mode 100644 index 000000000000..89a13b4a74a4 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include <linux/etherdevice.h> +#include "mt7921.h" +#include "mac.h" +#include "mcu.h" +#include "eeprom.h" + +#define CCK_RATE(_idx, _rate) { \ + .bitrate = _rate, \ + .flags = IEEE80211_RATE_SHORT_PREAMBLE, \ + .hw_value = (MT_PHY_TYPE_CCK << 8) | (_idx), \ + .hw_value_short = (MT_PHY_TYPE_CCK << 8) | (4 + (_idx)), \ +} + +#define OFDM_RATE(_idx, _rate) { \ + .bitrate = _rate, \ + .hw_value = (MT_PHY_TYPE_OFDM << 8) | (_idx), \ + .hw_value_short = (MT_PHY_TYPE_OFDM << 8) | (_idx), \ +} + +static struct ieee80211_rate mt7921_rates[] = { + CCK_RATE(0, 10), + CCK_RATE(1, 20), + CCK_RATE(2, 55), + CCK_RATE(3, 110), + OFDM_RATE(11, 60), + OFDM_RATE(15, 90), + OFDM_RATE(10, 120), + OFDM_RATE(14, 180), + OFDM_RATE(9, 240), + OFDM_RATE(13, 360), + OFDM_RATE(8, 480), + OFDM_RATE(12, 540), +}; + +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); + + 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); + mt7921_mutex_release(dev); +} + +static void +mt7921_init_wiphy(struct ieee80211_hw *hw) +{ + struct mt7921_phy *phy = mt7921_hw_phy(hw); + struct wiphy *wiphy = hw->wiphy; + + hw->queues = 4; + hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; + hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; + + 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->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_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_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, WANT_MONITOR_VIF); + ieee80211_hw_set(hw, SUPPORTS_PS); + ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); + + hw->max_tx_fragments = 4; +} + +static void +mt7921_mac_init_band(struct mt7921_dev *dev, u8 band) +{ + u32 mask, set; + + 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); + + mask = MT_MDP_RCFR0_MCU_RX_MGMT | + MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR | + MT_MDP_RCFR0_MCU_RX_CTL_BAR; + set = FIELD_PREP(MT_MDP_RCFR0_MCU_RX_MGMT, MT_MDP_TO_HIF) | + FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_NON_BAR, MT_MDP_TO_HIF) | + FIELD_PREP(MT_MDP_RCFR0_MCU_RX_CTL_BAR, MT_MDP_TO_HIF); + mt76_rmw(dev, MT_MDP_BNRCFR0(band), mask, set); + + mask = MT_MDP_RCFR1_MCU_RX_BYPASS | + MT_MDP_RCFR1_RX_DROPPED_UCAST | + MT_MDP_RCFR1_RX_DROPPED_MCAST; + set = FIELD_PREP(MT_MDP_RCFR1_MCU_RX_BYPASS, MT_MDP_TO_HIF) | + FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_UCAST, MT_MDP_TO_HIF) | + FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF); + mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set); + + 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); + + 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); +} + +static void mt7921_mac_init(struct mt7921_dev *dev) +{ + int i; + + mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536); + /* disable hardware de-agg */ + mt76_clear(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN); + mt76_clear(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); + + mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0); +} + +static void mt7921_init_work(struct work_struct *work) +{ + struct mt7921_dev *dev = container_of(work, struct mt7921_dev, + init_work); + + mt7921_mcu_set_eeprom(dev); + mt7921_mac_init(dev); +} + +static int mt7921_init_hardware(struct mt7921_dev *dev) +{ + int ret, idx; + + INIT_WORK(&dev->init_work, mt7921_init_work); + spin_lock_init(&dev->token_lock); + idr_init(&dev->token); + + ret = mt7921_dma_init(dev); + if (ret) + return ret; + + set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state); + + /* 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) + return ret; + + ret = mt7921_eeprom_init(dev); + if (ret < 0) + 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; + + INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work); + INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work); + init_completion(&dev->pm.wake_cmpl); + spin_lock_init(&dev->pm.txq_lock); + set_bit(MT76_STATE_PM, &dev->mphy.state); + INIT_LIST_HEAD(&dev->phy.stats_list); + 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_waitqueue_head(&dev->reset_wait); + INIT_WORK(&dev->reset_work, mt7921_mac_reset_work); + + ret = mt7921_init_hardware(dev); + if (ret) + return ret; + + mt7921_init_wiphy(hw); + dev->pm.idle_timeout = MT7921_PM_TIMEOUT; + 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; + dev->mphy.sband_5g.sband.vht_cap.cap |= + IEEE80211_VHT_CAP_SHORT_GI_160 | + IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; + 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, mt7921_rates, + ARRAY_SIZE(mt7921_rates)); + if (ret) + return ret; + + ieee80211_queue_work(mt76_hw(dev), &dev->init_work); + + return mt7921_init_debugfs(dev); +} + +void mt7921_unregister_device(struct mt7921_dev *dev) +{ + mt76_unregister_device(&dev->mt76); + mt7921_mcu_exit(dev); + mt7921_dma_cleanup(dev); + + mt7921_tx_token_put(dev); + + tasklet_disable(&dev->irq_tasklet); + mt76_free_device(&dev->mt76); +} |