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// 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"
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 void
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->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->features |= 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;
}
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);
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);
}
void 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);
mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
}
static int mt7921_init_hardware(struct mt7921_dev *dev)
{
int ret, idx;
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;
ret = mt7921_mcu_set_eeprom(dev);
if (ret)
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);
mt7921_mac_init(dev);
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);
spin_lock_init(&dev->pm.txq_lock);
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_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;
dev->pm.enable = true;
ret = mt7921_init_hardware(dev);
if (ret)
return ret;
mt7921_init_wiphy(hw);
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.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;
return mt7921_init_debugfs(dev);
}
void mt7921_unregister_device(struct mt7921_dev *dev)
{
mt76_unregister_device(&dev->mt76);
mt7921_tx_token_put(dev);
mt7921_dma_cleanup(dev);
mt7921_mcu_exit(dev);
tasklet_disable(&dev->irq_tasklet);
mt76_free_device(&dev->mt76);
}
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