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main.c
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// SPDX-License-Identifier: ISC
/*
* Copyright (C) 2022 MediaTek Inc.
*/
#include "mt7996.h"
#include "mcu.h"
#include "mac.h"
static bool mt7996_dev_running(struct mt7996_dev *dev)
{
struct mt7996_phy *phy;
if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state))
return true;
phy = mt7996_phy2(dev);
if (phy && test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
return true;
phy = mt7996_phy3(dev);
return phy && test_bit(MT76_STATE_RUNNING, &phy->mt76->state);
}
int mt7996_run(struct ieee80211_hw *hw)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
bool running;
int ret;
running = mt7996_dev_running(dev);
if (!running) {
ret = mt7996_mcu_set_hdr_trans(dev, true);
if (ret)
goto out;
if (is_mt7992(&dev->mt76)) {
u8 queue = mt76_connac_lmac_mapping(IEEE80211_AC_VI);
ret = mt7996_mcu_cp_support(dev, queue);
if (ret)
goto out;
}
}
mt7996_mac_enable_nf(dev, phy->mt76->band_idx);
ret = mt7996_mcu_set_rts_thresh(phy, 0x92b);
if (ret)
goto out;
ret = mt7996_mcu_set_radio_en(phy, true);
if (ret)
goto out;
ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_RX_PATH);
if (ret)
goto out;
ret = mt7996_mcu_set_thermal_throttling(phy, MT7996_THERMAL_THROTTLE_MAX);
if (ret)
goto out;
ret = mt7996_mcu_set_thermal_protect(phy, true);
if (ret)
goto out;
set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
MT7996_WATCHDOG_TIME);
if (!running)
mt7996_mac_reset_counters(phy);
out:
return ret;
}
static int mt7996_start(struct ieee80211_hw *hw)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
int ret;
flush_work(&dev->init_work);
mutex_lock(&dev->mt76.mutex);
ret = mt7996_run(hw);
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static void mt7996_stop(struct ieee80211_hw *hw)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
cancel_delayed_work_sync(&phy->mt76->mac_work);
mutex_lock(&dev->mt76.mutex);
mt7996_mcu_set_radio_en(phy, false);
clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
mutex_unlock(&dev->mt76.mutex);
}
static inline int get_free_idx(u32 mask, u8 start, u8 end)
{
return ffs(~mask & GENMASK(end, start));
}
static int get_omac_idx(enum nl80211_iftype type, u64 mask)
{
int i;
switch (type) {
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_STATION:
/* prefer hw bssid slot 1-3 */
i = get_free_idx(mask, HW_BSSID_1, HW_BSSID_3);
if (i)
return i - 1;
if (type != NL80211_IFTYPE_STATION)
break;
i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
if (i)
return i - 1;
if (~mask & BIT(HW_BSSID_0))
return HW_BSSID_0;
break;
case NL80211_IFTYPE_MONITOR:
case NL80211_IFTYPE_AP:
/* ap uses hw bssid 0 and ext bssid */
if (~mask & BIT(HW_BSSID_0))
return HW_BSSID_0;
i = get_free_idx(mask, EXT_BSSID_1, EXT_BSSID_MAX);
if (i)
return i - 1;
break;
default:
WARN_ON(1);
break;
}
return -1;
}
static void mt7996_init_bitrate_mask(struct ieee80211_vif *vif)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
int i;
for (i = 0; i < ARRAY_SIZE(mvif->bitrate_mask.control); i++) {
mvif->bitrate_mask.control[i].gi = NL80211_TXRATE_DEFAULT_GI;
mvif->bitrate_mask.control[i].he_gi = 0xff;
mvif->bitrate_mask.control[i].he_ltf = 0xff;
mvif->bitrate_mask.control[i].legacy = GENMASK(31, 0);
memset(mvif->bitrate_mask.control[i].ht_mcs, 0xff,
sizeof(mvif->bitrate_mask.control[i].ht_mcs));
memset(mvif->bitrate_mask.control[i].vht_mcs, 0xff,
sizeof(mvif->bitrate_mask.control[i].vht_mcs));
memset(mvif->bitrate_mask.control[i].he_mcs, 0xff,
sizeof(mvif->bitrate_mask.control[i].he_mcs));
}
}
static int mt7996_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
struct mt76_txq *mtxq;
u8 band_idx = phy->mt76->band_idx;
int idx, ret = 0;
mutex_lock(&dev->mt76.mutex);
if (vif->type == NL80211_IFTYPE_MONITOR &&
is_zero_ether_addr(vif->addr))
phy->monitor_vif = vif;
mvif->mt76.idx = __ffs64(~dev->mt76.vif_mask);
if (mvif->mt76.idx >= mt7996_max_interface_num(dev)) {
ret = -ENOSPC;
goto out;
}
idx = get_omac_idx(vif->type, phy->omac_mask);
if (idx < 0) {
ret = -ENOSPC;
goto out;
}
mvif->mt76.omac_idx = idx;
mvif->phy = phy;
mvif->mt76.band_idx = band_idx;
mvif->mt76.wmm_idx = vif->type != NL80211_IFTYPE_AP;
ret = mt7996_mcu_add_dev_info(phy, vif, true);
if (ret)
goto out;
dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx);
phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
idx = MT7996_WTBL_RESERVED - mvif->mt76.idx;
INIT_LIST_HEAD(&mvif->sta.rc_list);
INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
mvif->sta.wcid.idx = idx;
mvif->sta.wcid.phy_idx = band_idx;
mvif->sta.wcid.hw_key_idx = -1;
mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
mt76_wcid_init(&mvif->sta.wcid);
mt7996_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
if (vif->txq) {
mtxq = (struct mt76_txq *)vif->txq->drv_priv;
mtxq->wcid = idx;
}
if (vif->type != NL80211_IFTYPE_AP &&
(!mvif->mt76.omac_idx || mvif->mt76.omac_idx > 3))
vif->offload_flags = 0;
vif->offload_flags |= IEEE80211_OFFLOAD_ENCAP_4ADDR;
if (phy->mt76->chandef.chan->band != NL80211_BAND_2GHZ)
mvif->mt76.basic_rates_idx = MT7996_BASIC_RATES_TBL + 4;
else
mvif->mt76.basic_rates_idx = MT7996_BASIC_RATES_TBL;
mt7996_init_bitrate_mask(vif);
mt7996_mcu_add_bss_info(phy, vif, true);
/* defer the first STA_REC of BMC entry to BSS_CHANGED_BSSID for STA
* interface, since firmware only records BSSID when the entry is new
*/
if (vif->type != NL80211_IFTYPE_STATION)
mt7996_mcu_add_sta(dev, vif, NULL, true, true);
rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
out:
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static void mt7996_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_sta *msta = &mvif->sta;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
int idx = msta->wcid.idx;
mt7996_mcu_add_sta(dev, vif, NULL, false, false);
mt7996_mcu_add_bss_info(phy, vif, false);
if (vif == phy->monitor_vif)
phy->monitor_vif = NULL;
mt7996_mcu_add_dev_info(phy, vif, false);
rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
mutex_lock(&dev->mt76.mutex);
dev->mt76.vif_mask &= ~BIT_ULL(mvif->mt76.idx);
phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx);
mutex_unlock(&dev->mt76.mutex);
spin_lock_bh(&dev->mt76.sta_poll_lock);
if (!list_empty(&msta->wcid.poll_list))
list_del_init(&msta->wcid.poll_list);
spin_unlock_bh(&dev->mt76.sta_poll_lock);
mt76_wcid_cleanup(&dev->mt76, &msta->wcid);
}
int mt7996_set_channel(struct mt76_phy *mphy)
{
struct mt7996_phy *phy = mphy->priv;
int ret;
ret = mt7996_mcu_set_chan_info(phy, UNI_CHANNEL_SWITCH);
if (ret)
goto out;
ret = mt7996_dfs_init_radar_detector(phy);
mt7996_mac_cca_stats_reset(phy);
mt7996_mac_reset_counters(phy);
phy->noise = 0;
out:
ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
MT7996_WATCHDOG_TIME);
return ret;
}
static int mt7996_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_sta *msta = sta ? (struct mt7996_sta *)sta->drv_priv :
&mvif->sta;
struct mt76_wcid *wcid = &msta->wcid;
u8 *wcid_keyidx = &wcid->hw_key_idx;
int idx = key->keyidx;
int err = 0;
/* The hardware does not support per-STA RX GTK, fallback
* to software mode for these.
*/
if ((vif->type == NL80211_IFTYPE_ADHOC ||
vif->type == NL80211_IFTYPE_MESH_POINT) &&
(key->cipher == WLAN_CIPHER_SUITE_TKIP ||
key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
return -EOPNOTSUPP;
/* fall back to sw encryption for unsupported ciphers */
switch (key->cipher) {
case WLAN_CIPHER_SUITE_AES_CMAC:
wcid_keyidx = &wcid->hw_key_idx2;
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
break;
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
case WLAN_CIPHER_SUITE_SMS4:
break;
case WLAN_CIPHER_SUITE_BIP_GMAC_128:
case WLAN_CIPHER_SUITE_BIP_GMAC_256:
if (key->keyidx == 6 || key->keyidx == 7)
break;
fallthrough;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
default:
return -EOPNOTSUPP;
}
mutex_lock(&dev->mt76.mutex);
if (cmd == SET_KEY && !sta && !mvif->mt76.cipher) {
mvif->mt76.cipher = mt76_connac_mcu_get_cipher(key->cipher);
mt7996_mcu_add_bss_info(phy, vif, true);
}
if (cmd == SET_KEY) {
*wcid_keyidx = idx;
} else {
if (idx == *wcid_keyidx)
*wcid_keyidx = -1;
goto out;
}
mt76_wcid_key_setup(&dev->mt76, wcid, key);
if (key->keyidx == 6 || key->keyidx == 7)
err = mt7996_mcu_bcn_prot_enable(dev, vif, key);
else
err = mt7996_mcu_add_key(&dev->mt76, vif, key,
MCU_WMWA_UNI_CMD(STA_REC_UPDATE),
&msta->wcid, cmd);
out:
mutex_unlock(&dev->mt76.mutex);
return err;
}
static int mt7996_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
int ret;
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
ret = mt76_update_channel(phy->mt76);
if (ret)
return ret;
}
if (changed & (IEEE80211_CONF_CHANGE_POWER |
IEEE80211_CONF_CHANGE_CHANNEL)) {
ret = mt7996_mcu_set_txpower_sku(phy);
if (ret)
return ret;
}
mutex_lock(&dev->mt76.mutex);
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
bool enabled = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
if (!enabled)
phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
else
phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
mt76_rmw_field(dev, MT_DMA_DCR0(phy->mt76->band_idx),
MT_DMA_DCR0_RXD_G5_EN, enabled);
mt76_wr(dev, MT_WF_RFCR(phy->mt76->band_idx), phy->rxfilter);
}
mutex_unlock(&dev->mt76.mutex);
return 0;
}
static int
mt7996_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
unsigned int link_id, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
static const u8 mq_to_aci[] = {
[IEEE80211_AC_VO] = 3,
[IEEE80211_AC_VI] = 2,
[IEEE80211_AC_BE] = 0,
[IEEE80211_AC_BK] = 1,
};
/* firmware uses access class index */
mvif->queue_params[mq_to_aci[queue]] = *params;
/* no need to update right away, we'll get BSS_CHANGED_QOS */
return 0;
}
static void mt7996_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
u32 ctl_flags = MT_WF_RFCR1_DROP_ACK |
MT_WF_RFCR1_DROP_BF_POLL |
MT_WF_RFCR1_DROP_BA |
MT_WF_RFCR1_DROP_CFEND |
MT_WF_RFCR1_DROP_CFACK;
u32 flags = 0;
#define MT76_FILTER(_flag, _hw) do { \
flags |= *total_flags & FIF_##_flag; \
phy->rxfilter &= ~(_hw); \
phy->rxfilter |= !(flags & FIF_##_flag) * (_hw); \
} while (0)
mutex_lock(&dev->mt76.mutex);
phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
MT_WF_RFCR_DROP_OTHER_BEACON |
MT_WF_RFCR_DROP_FRAME_REPORT |
MT_WF_RFCR_DROP_PROBEREQ |
MT_WF_RFCR_DROP_MCAST_FILTERED |
MT_WF_RFCR_DROP_MCAST |
MT_WF_RFCR_DROP_BCAST |
MT_WF_RFCR_DROP_DUPLICATE |
MT_WF_RFCR_DROP_A2_BSSID |
MT_WF_RFCR_DROP_UNWANTED_CTL |
MT_WF_RFCR_DROP_STBC_MULTI);
MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
MT_WF_RFCR_DROP_A3_MAC |
MT_WF_RFCR_DROP_A3_BSSID);
MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
MT_WF_RFCR_DROP_RTS |
MT_WF_RFCR_DROP_CTL_RSV |
MT_WF_RFCR_DROP_NDPA);
*total_flags = flags;
mt76_wr(dev, MT_WF_RFCR(phy->mt76->band_idx), phy->rxfilter);
if (*total_flags & FIF_CONTROL)
mt76_clear(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
else
mt76_set(dev, MT_WF_RFCR1(phy->mt76->band_idx), ctl_flags);
mutex_unlock(&dev->mt76.mutex);
}
static void
mt7996_update_bss_color(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_he_bss_color *bss_color)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
switch (vif->type) {
case NL80211_IFTYPE_AP: {
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
if (mvif->mt76.omac_idx > HW_BSSID_MAX)
return;
fallthrough;
}
case NL80211_IFTYPE_STATION:
mt7996_mcu_update_bss_color(dev, vif, bss_color);
break;
default:
break;
}
}
static u8
mt7996_get_rates_table(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
bool beacon, bool mcast)
{
struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
struct mt76_phy *mphy = hw->priv;
u16 rate;
u8 i, idx;
rate = mt76_connac2_mac_tx_rate_val(mphy, vif, beacon, mcast);
if (beacon) {
struct mt7996_phy *phy = mphy->priv;
/* odd index for driver, even index for firmware */
idx = MT7996_BEACON_RATES_TBL + 2 * phy->mt76->band_idx;
if (phy->beacon_rate != rate)
mt7996_mcu_set_fixed_rate_table(phy, idx, rate, beacon);
return idx;
}
idx = FIELD_GET(MT_TX_RATE_IDX, rate);
for (i = 0; i < ARRAY_SIZE(mt76_rates); i++)
if ((mt76_rates[i].hw_value & GENMASK(7, 0)) == idx)
return MT7996_BASIC_RATES_TBL + 2 * i;
return mvif->basic_rates_idx;
}
static void
mt7996_update_mu_group(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
u8 band = mvif->mt76.band_idx;
u32 *mu;
mu = (u32 *)info->mu_group.membership;
mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_VLD0(band), mu[0]);
mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_VLD1(band), mu[1]);
mu = (u32 *)info->mu_group.position;
mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS0(band), mu[0]);
mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS1(band), mu[1]);
mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS2(band), mu[2]);
mt76_wr(dev, MT_WF_PHYRX_BAND_GID_TAB_POS3(band), mu[3]);
}
static void mt7996_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u64 changed)
{
struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
struct mt7996_phy *phy = mt7996_hw_phy(hw);
struct mt7996_dev *dev = mt7996_hw_dev(hw);
mutex_lock(&dev->mt76.mutex);
/* station mode uses BSSID to map the wlan entry to a peer,
* and then peer references bss_info_rfch to set bandwidth cap.
*/
if ((changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid)) ||
(changed & BSS_CHANGED_ASSOC && vif->cfg.assoc) ||
(changed & BSS_CHANGED_BEACON_ENABLED && info->enable_beacon)) {
mt7996_mcu_add_bss_info(phy, vif, true);
mt7996_mcu_add_sta(dev, vif, NULL, true,
!!(changed & BSS_CHANGED_BSSID));
}
if (changed & BSS_CHANGED_ERP_CTS_PROT)
mt7996_mac_enable_rtscts(dev, vif, info->use_cts_prot);
if (changed & BSS_CHANGED_ERP_SLOT) {
int slottime = info->use_short_slot ? 9 : 20;
if (slottime != phy->slottime) {
phy->slottime = slottime;
mt7996_mcu_set_timing(phy, vif);
}
}
if (changed & BSS_CHANGED_MCAST_RATE)
mvif->mcast_rates_idx =
mt7996_get_rates_table(hw, vif, false, true);
if (changed & BSS_CHANGED_BASIC_RATES)
mvif->basic_rates_idx =
mt7996_get_rates_table(hw, vif, false, false);
/* ensure that enable txcmd_mode after bss_info */
if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
mt7996_mcu_set_tx(dev, vif);
if (changed & BSS_CHANGED_HE_OBSS_PD)
mt7996_mcu_add_obss_spr(phy, vif, &info->he_obss_pd);
if (changed & BSS_CHANGED_HE_BSS_COLOR)
mt7996_update_bss_color(hw, vif, &info->he_bss_color);
if (changed & (BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED)) {
mvif->beacon_rates_idx =
mt7996_get_rates_table(hw, vif, true, false);
mt7996_mcu_add_beacon(hw, vif, info->enable_beacon);
}
if (changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP |
BSS_CHANGED_FILS_DISCOVERY))
mt7996_mcu_beacon_inband_discov(dev, vif, changed);
if (changed & BSS_CHANGED_MU_GROUPS)
mt7996_update_mu_group(hw, vif, info);
mutex_unlock(&dev->mt76.mutex);
}
static void
mt7996_channel_switch_beacon(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct cfg80211_chan_def *chandef)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
mutex_lock(&dev->mt76.mutex);
mt7996_mcu_add_beacon(hw, vif, true);
mutex_unlock(&dev->mt76.mutex);
}
int mt7996_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
u8 band_idx = mvif->phy->mt76->band_idx;
int ret, idx;
idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
if (idx < 0)
return -ENOSPC;
INIT_LIST_HEAD(&msta->rc_list);
INIT_LIST_HEAD(&msta->wcid.poll_list);
msta->vif = mvif;
msta->wcid.sta = 1;
msta->wcid.idx = idx;
msta->wcid.phy_idx = band_idx;
msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
ewma_avg_signal_init(&msta->avg_ack_signal);
mt7996_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
ret = mt7996_mcu_add_sta(dev, vif, sta, true, true);
if (ret)
return ret;
return mt7996_mcu_add_rate_ctrl(dev, vif, sta, false);
}
void mt7996_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
int i;
mt7996_mcu_add_sta(dev, vif, sta, false, false);
mt7996_mac_wtbl_update(dev, msta->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
for (i = 0; i < ARRAY_SIZE(msta->twt.flow); i++)
mt7996_mac_twt_teardown_flow(dev, msta, i);
spin_lock_bh(&mdev->sta_poll_lock);
if (!list_empty(&msta->wcid.poll_list))
list_del_init(&msta->wcid.poll_list);
if (!list_empty(&msta->rc_list))
list_del_init(&msta->rc_list);
spin_unlock_bh(&mdev->sta_poll_lock);
}
static void mt7996_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt76_phy *mphy = hw->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_vif *vif = info->control.vif;
struct mt76_wcid *wcid = &dev->mt76.global_wcid;
if (control->sta) {
struct mt7996_sta *sta;
sta = (struct mt7996_sta *)control->sta->drv_priv;
wcid = &sta->wcid;
}
if (vif && !control->sta) {
struct mt7996_vif *mvif;
mvif = (struct mt7996_vif *)vif->drv_priv;
wcid = &mvif->sta.wcid;
}
mt76_tx(mphy, control->sta, wcid, skb);
}
static int mt7996_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
{
struct mt7996_phy *phy = mt7996_hw_phy(hw);
int ret;
mutex_lock(&phy->dev->mt76.mutex);
ret = mt7996_mcu_set_rts_thresh(phy, val);
mutex_unlock(&phy->dev->mt76.mutex);
return ret;
}
static int
mt7996_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_ampdu_params *params)
{
enum ieee80211_ampdu_mlme_action action = params->action;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct ieee80211_sta *sta = params->sta;
struct ieee80211_txq *txq = sta->txq[params->tid];
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
u16 tid = params->tid;
u16 ssn = params->ssn;
struct mt76_txq *mtxq;
int ret = 0;
if (!txq)
return -EINVAL;
mtxq = (struct mt76_txq *)txq->drv_priv;
mutex_lock(&dev->mt76.mutex);
switch (action) {
case IEEE80211_AMPDU_RX_START:
mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
params->buf_size);
ret = mt7996_mcu_add_rx_ba(dev, params, true);
break;
case IEEE80211_AMPDU_RX_STOP:
mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
ret = mt7996_mcu_add_rx_ba(dev, params, false);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
mtxq->aggr = true;
mtxq->send_bar = false;
ret = mt7996_mcu_add_tx_ba(dev, params, true);
break;
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
mtxq->aggr = false;
clear_bit(tid, &msta->wcid.ampdu_state);
ret = mt7996_mcu_add_tx_ba(dev, params, false);
break;
case IEEE80211_AMPDU_TX_START:
set_bit(tid, &msta->wcid.ampdu_state);
ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
mtxq->aggr = false;
clear_bit(tid, &msta->wcid.ampdu_state);
ret = mt7996_mcu_add_tx_ba(dev, params, false);
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
}
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static int
mt7996_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NOTEXIST,
IEEE80211_STA_NONE);
}
static int
mt7996_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
return mt76_sta_state(hw, vif, sta, IEEE80211_STA_NONE,
IEEE80211_STA_NOTEXIST);
}
static int
mt7996_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{
struct mt7996_phy *phy = mt7996_hw_phy(hw);
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt76_mib_stats *mib = &phy->mib;
mutex_lock(&dev->mt76.mutex);
stats->dot11RTSSuccessCount = mib->rts_cnt;
stats->dot11RTSFailureCount = mib->rts_retries_cnt;
stats->dot11FCSErrorCount = mib->fcs_err_cnt;
stats->dot11ACKFailureCount = mib->ack_fail_cnt;
mutex_unlock(&dev->mt76.mutex);
return 0;
}
u64 __mt7996_get_tsf(struct ieee80211_hw *hw, struct mt7996_vif *mvif)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
union {
u64 t64;
u32 t32[2];
} tsf;
u16 n;
lockdep_assert_held(&dev->mt76.mutex);
n = mvif->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
: mvif->mt76.omac_idx;
/* TSF software read */
mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
MT_LPON_TCR_SW_READ);
tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(phy->mt76->band_idx));
tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(phy->mt76->band_idx));
return tsf.t64;
}
static u64
mt7996_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
u64 ret;
mutex_lock(&dev->mt76.mutex);
ret = __mt7996_get_tsf(hw, mvif);
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static void
mt7996_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
u64 timestamp)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
union {
u64 t64;
u32 t32[2];
} tsf = { .t64 = timestamp, };
u16 n;
mutex_lock(&dev->mt76.mutex);
n = mvif->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
: mvif->mt76.omac_idx;
mt76_wr(dev, MT_LPON_UTTR0(phy->mt76->band_idx), tsf.t32[0]);
mt76_wr(dev, MT_LPON_UTTR1(phy->mt76->band_idx), tsf.t32[1]);
/* TSF software overwrite */
mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
MT_LPON_TCR_SW_WRITE);
mutex_unlock(&dev->mt76.mutex);
}
static void
mt7996_offset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
s64 timestamp)
{
struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
union {
u64 t64;
u32 t32[2];
} tsf = { .t64 = timestamp, };
u16 n;
mutex_lock(&dev->mt76.mutex);
n = mvif->mt76.omac_idx > HW_BSSID_MAX ? HW_BSSID_0
: mvif->mt76.omac_idx;
mt76_wr(dev, MT_LPON_UTTR0(phy->mt76->band_idx), tsf.t32[0]);
mt76_wr(dev, MT_LPON_UTTR1(phy->mt76->band_idx), tsf.t32[1]);
/* TSF software adjust*/
mt76_rmw(dev, MT_LPON_TCR(phy->mt76->band_idx, n), MT_LPON_TCR_SW_MODE,
MT_LPON_TCR_SW_ADJUST);
mutex_unlock(&dev->mt76.mutex);
}
static void
mt7996_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
{
struct mt7996_phy *phy = mt7996_hw_phy(hw);
struct mt7996_dev *dev = phy->dev;
mutex_lock(&dev->mt76.mutex);
phy->coverage_class = max_t(s16, coverage_class, 0);
mt7996_mac_set_coverage_class(phy);
mutex_unlock(&dev->mt76.mutex);
}
static int
mt7996_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
{
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_phy *phy = mt7996_hw_phy(hw);
int max_nss = hweight8(hw->wiphy->available_antennas_tx);
u8 band_idx = phy->mt76->band_idx, shift = dev->chainshift[band_idx];
if (!tx_ant || tx_ant != rx_ant || ffs(tx_ant) > max_nss)
return -EINVAL;
if ((BIT(hweight8(tx_ant)) - 1) != tx_ant)
tx_ant = BIT(ffs(tx_ant) - 1) - 1;
mutex_lock(&dev->mt76.mutex);
phy->mt76->antenna_mask = tx_ant;
/* restore to the origin chainmask which might have auxiliary path */
if (hweight8(tx_ant) == max_nss && band_idx < MT_BAND2)
phy->mt76->chainmask = ((dev->chainmask >> shift) &
(BIT(dev->chainshift[band_idx + 1] - shift) - 1)) << shift;
else if (hweight8(tx_ant) == max_nss)
phy->mt76->chainmask = (dev->chainmask >> shift) << shift;
else
phy->mt76->chainmask = tx_ant << shift;
mt76_set_stream_caps(phy->mt76, true);
mt7996_set_stream_vht_txbf_caps(phy);
mt7996_set_stream_he_eht_caps(phy);
mt7996_mcu_set_txpower_sku(phy);
mutex_unlock(&dev->mt76.mutex);
return 0;
}
static void mt7996_sta_statistics(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct station_info *sinfo)
{
struct mt7996_phy *phy = mt7996_hw_phy(hw);
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
struct rate_info *txrate = &msta->wcid.rate;
if (txrate->legacy || txrate->flags) {
if (txrate->legacy) {
sinfo->txrate.legacy = txrate->legacy;