--- /dev/null
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2020 MediaTek Inc. */
+
+#include <linux/etherdevice.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/module.h>
+#include "mt7921.h"
+#include "mcu.h"
+
+static void
+mt7921_gen_ppe_thresh(u8 *he_ppet, int nss)
+{
+ u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
+ u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
+
+ he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
+ FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
+ ru_bit_mask);
+
+ ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
+ nss * hweight8(ru_bit_mask) * 2;
+ ppet_size = DIV_ROUND_UP(ppet_bits, 8);
+
+ for (i = 0; i < ppet_size - 1; i++)
+ he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
+
+ he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
+ (0xff >> (8 - (ppet_bits - 1) % 8));
+}
+
+static int
+mt7921_init_he_caps(struct mt7921_phy *phy, enum nl80211_band band,
+ struct ieee80211_sband_iftype_data *data)
+{
+ int i, idx = 0;
+ int nss = hweight8(phy->mt76->chainmask);
+ u16 mcs_map = 0;
+
+ for (i = 0; i < 8; i++) {
+ if (i < nss)
+ mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
+ else
+ mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
+ }
+
+ for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
+ struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
+ struct ieee80211_he_cap_elem *he_cap_elem =
+ &he_cap->he_cap_elem;
+ struct ieee80211_he_mcs_nss_supp *he_mcs =
+ &he_cap->he_mcs_nss_supp;
+
+ switch (i) {
+ case NL80211_IFTYPE_STATION:
+ break;
+ default:
+ continue;
+ }
+
+ data[idx].types_mask = BIT(i);
+ he_cap->has_he = true;
+
+ he_cap_elem->mac_cap_info[0] =
+ IEEE80211_HE_MAC_CAP0_HTC_HE;
+ he_cap_elem->mac_cap_info[3] =
+ IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
+ IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_RESERVED;
+ he_cap_elem->mac_cap_info[4] =
+ IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU;
+
+ if (band == NL80211_BAND_2GHZ)
+ he_cap_elem->phy_cap_info[0] =
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
+ else if (band == NL80211_BAND_5GHZ)
+ he_cap_elem->phy_cap_info[0] =
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;
+
+ he_cap_elem->phy_cap_info[1] =
+ IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
+ he_cap_elem->phy_cap_info[2] =
+ IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
+ IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ;
+
+ switch (i) {
+ case NL80211_IFTYPE_STATION:
+ he_cap_elem->mac_cap_info[0] |=
+ IEEE80211_HE_MAC_CAP0_TWT_REQ;
+ he_cap_elem->mac_cap_info[1] |=
+ IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
+
+ if (band == NL80211_BAND_2GHZ)
+ he_cap_elem->phy_cap_info[0] |=
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
+ else if (band == NL80211_BAND_5GHZ)
+ he_cap_elem->phy_cap_info[0] |=
+ IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
+
+ he_cap_elem->phy_cap_info[1] |=
+ IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
+ IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
+ he_cap_elem->phy_cap_info[3] |=
+ IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
+ IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
+ he_cap_elem->phy_cap_info[6] |=
+ IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
+ IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
+ IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
+ he_cap_elem->phy_cap_info[7] |=
+ IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR |
+ IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
+ he_cap_elem->phy_cap_info[8] |=
+ IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
+ IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
+ he_cap_elem->phy_cap_info[9] |=
+ IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
+ IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
+ IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
+ IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
+ IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
+ IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
+ break;
+ }
+
+ he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
+ he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
+ he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
+ he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
+ he_mcs->rx_mcs_80p80 = cpu_to_le16(mcs_map);
+ he_mcs->tx_mcs_80p80 = cpu_to_le16(mcs_map);
+
+ memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
+ if (he_cap_elem->phy_cap_info[6] &
+ IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
+ mt7921_gen_ppe_thresh(he_cap->ppe_thres, nss);
+ } else {
+ he_cap_elem->phy_cap_info[9] |=
+ IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
+ }
+ idx++;
+ }
+
+ return idx;
+}
+
+void mt7921_set_stream_he_caps(struct mt7921_phy *phy)
+{
+ struct ieee80211_sband_iftype_data *data;
+ struct ieee80211_supported_band *band;
+ int n;
+
+ if (phy->mt76->cap.has_2ghz) {
+ data = phy->iftype[NL80211_BAND_2GHZ];
+ n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data);
+
+ band = &phy->mt76->sband_2g.sband;
+ band->iftype_data = data;
+ band->n_iftype_data = n;
+ }
+
+ if (phy->mt76->cap.has_5ghz) {
+ data = phy->iftype[NL80211_BAND_5GHZ];
+ n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data);
+
+ band = &phy->mt76->sband_5g.sband;
+ band->iftype_data = data;
+ band->n_iftype_data = n;
+ }
+}
+
+static int mt7921_start(struct ieee80211_hw *hw)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+
+ mutex_lock(&dev->mt76.mutex);
+
+ mt7921_mcu_set_mac(dev, 0, true, false);
+ mt7921_mcu_set_channel_domain(phy);
+ mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD_SET_RX_PATH);
+ mt7921_mac_reset_counters(phy);
+ set_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+
+ ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
+ MT7921_WATCHDOG_TIME);
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+
+static void mt7921_stop(struct ieee80211_hw *hw)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+
+ cancel_delayed_work_sync(&phy->mt76->mac_work);
+
+ mutex_lock(&dev->mt76.mutex);
+ clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
+ mt7921_mcu_set_mac(dev, 0, false, false);
+ 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_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;
+
+ /* next, try to find a free repeater entry for the sta */
+ i = get_free_idx(mask >> REPEATER_BSSID_START, 0,
+ REPEATER_BSSID_MAX - REPEATER_BSSID_START);
+ if (i)
+ return i + 32 - 1;
+
+ 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:
+ /* 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 int mt7921_add_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ struct mt76_txq *mtxq;
+ 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 = ffs(~dev->mt76.vif_mask) - 1;
+ if (mvif->mt76.idx >= MT7921_MAX_INTERFACES) {
+ 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 = 0;
+ mvif->mt76.wmm_idx = mvif->mt76.idx % MT7921_MAX_WMM_SETS;
+
+ ret = mt7921_mcu_uni_add_dev(dev, vif, true);
+ if (ret)
+ goto out;
+
+ dev->mt76.vif_mask |= BIT(mvif->mt76.idx);
+ phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
+
+ idx = MT7921_WTBL_RESERVED - mvif->mt76.idx;
+
+ INIT_LIST_HEAD(&mvif->sta.stats_list);
+ INIT_LIST_HEAD(&mvif->sta.poll_list);
+ mvif->sta.wcid.idx = idx;
+ mvif->sta.wcid.ext_phy = mvif->mt76.band_idx;
+ mvif->sta.wcid.hw_key_idx = -1;
+ mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
+ mt7921_mac_wtbl_update(dev, idx,
+ MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
+
+ rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
+ if (vif->txq) {
+ mtxq = (struct mt76_txq *)vif->txq->drv_priv;
+ mtxq->wcid = &mvif->sta.wcid;
+ }
+
+ 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;
+
+out:
+ mutex_unlock(&dev->mt76.mutex);
+
+ return ret;
+}
+
+static void mt7921_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_sta *msta = &mvif->sta;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int idx = msta->wcid.idx;
+
+ if (vif == phy->monitor_vif)
+ phy->monitor_vif = NULL;
+
+ mt7921_mcu_uni_add_dev(dev, vif, false);
+
+ rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
+
+ mutex_lock(&dev->mt76.mutex);
+ dev->mt76.vif_mask &= ~BIT(mvif->mt76.idx);
+ phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx);
+ mutex_unlock(&dev->mt76.mutex);
+
+ spin_lock_bh(&dev->sta_poll_lock);
+ if (!list_empty(&msta->poll_list))
+ list_del_init(&msta->poll_list);
+ spin_unlock_bh(&dev->sta_poll_lock);
+}
+
+int mt7921_set_channel(struct mt7921_phy *phy)
+{
+ struct mt7921_dev *dev = phy->dev;
+ int ret;
+
+ cancel_delayed_work_sync(&phy->mt76->mac_work);
+
+ mutex_lock(&dev->mt76.mutex);
+ set_bit(MT76_RESET, &phy->mt76->state);
+
+ mt76_set_channel(phy->mt76);
+
+ ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD_CHANNEL_SWITCH);
+ if (ret)
+ goto out;
+
+ mt7921_mac_set_timing(phy);
+
+ mt7921_mac_reset_counters(phy);
+ phy->noise = 0;
+
+out:
+ clear_bit(MT76_RESET, &phy->mt76->state);
+ mutex_unlock(&dev->mt76.mutex);
+
+ mt76_txq_schedule_all(phy->mt76);
+
+ ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work,
+ MT7921_WATCHDOG_TIME);
+
+ return ret;
+}
+
+static int mt7921_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 mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_sta *msta = sta ? (struct mt7921_sta *)sta->drv_priv :
+ &mvif->sta;
+ struct mt76_wcid *wcid = &msta->wcid;
+ int idx = key->keyidx;
+
+ /* 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:
+ 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_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (cmd == SET_KEY) {
+ key->hw_key_idx = wcid->idx;
+ wcid->hw_key_idx = idx;
+ } else if (idx == wcid->hw_key_idx) {
+ wcid->hw_key_idx = -1;
+ }
+ mt76_wcid_key_setup(&dev->mt76, wcid,
+ cmd == SET_KEY ? key : NULL);
+
+ return mt7921_mcu_add_key(dev, vif, msta, key, cmd);
+}
+
+static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ bool band = phy != &dev->phy;
+ int ret;
+
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ ieee80211_stop_queues(hw);
+ ret = mt7921_set_channel(phy);
+ if (ret)
+ return ret;
+ ieee80211_wake_queues(hw);
+ }
+
+ 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(band), MT_DMA_DCR0_RXD_G5_EN,
+ enabled);
+ mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter);
+ }
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+
+static int
+mt7921_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+
+ /* no need to update right away, we'll get BSS_CHANGED_QOS */
+ queue = mt7921_lmac_mapping(dev, queue);
+ mvif->queue_params[queue] = *params;
+
+ return 0;
+}
+
+static void mt7921_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ u64 multicast)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ bool band = phy != &dev->phy;
+ 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(band), phy->rxfilter);
+
+ if (*total_flags & FIF_CONTROL)
+ mt76_clear(dev, MT_WF_RFCR1(band), ctl_flags);
+ else
+ mt76_set(dev, MT_WF_RFCR1(band), ctl_flags);
+
+ mutex_unlock(&dev->mt76.mutex);
+}
+
+static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed)
+{
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+
+ mutex_lock(&dev->mt76.mutex);
+
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ int slottime = info->use_short_slot ? 9 : 20;
+
+ if (slottime != phy->slottime) {
+ phy->slottime = slottime;
+ mt7921_mac_set_timing(phy);
+ }
+ }
+
+ /* ensure that enable txcmd_mode after bss_info */
+ if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
+ mt7921_mcu_set_tx(dev, vif);
+
+ mutex_unlock(&dev->mt76.mutex);
+}
+
+int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ int ret, idx;
+
+ idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
+ if (idx < 0)
+ return -ENOSPC;
+
+ INIT_LIST_HEAD(&msta->stats_list);
+ INIT_LIST_HEAD(&msta->poll_list);
+ msta->vif = mvif;
+ msta->wcid.sta = 1;
+ msta->wcid.idx = idx;
+ msta->wcid.ext_phy = mvif->mt76.band_idx;
+ msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
+ msta->stats.jiffies = jiffies;
+
+ if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
+ mt7921_mcu_uni_add_bss(&dev->phy, vif, true);
+ mt7921_mac_wtbl_update(dev, idx,
+ MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
+
+ ret = mt7921_mcu_uni_add_sta(dev, vif, sta, true);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+ struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
+
+ mt7921_mcu_uni_add_sta(dev, vif, sta, false);
+ mt7921_mac_wtbl_update(dev, msta->wcid.idx,
+ MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
+ if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
+ mt7921_mcu_uni_add_bss(&dev->phy, vif, false);
+
+ spin_lock_bh(&dev->sta_poll_lock);
+ if (!list_empty(&msta->poll_list))
+ list_del_init(&msta->poll_list);
+ if (!list_empty(&msta->stats_list))
+ list_del_init(&msta->stats_list);
+ spin_unlock_bh(&dev->sta_poll_lock);
+}
+
+static void mt7921_tx(struct ieee80211_hw *hw,
+ struct ieee80211_tx_control *control,
+ struct sk_buff *skb)
+{
+ struct mt7921_dev *dev = mt7921_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 mt7921_sta *sta;
+
+ sta = (struct mt7921_sta *)control->sta->drv_priv;
+ wcid = &sta->wcid;
+ }
+
+ if (vif && !control->sta) {
+ struct mt7921_vif *mvif;
+
+ mvif = (struct mt7921_vif *)vif->drv_priv;
+ wcid = &mvif->sta.wcid;
+ }
+
+ mt76_tx(mphy, control->sta, wcid, skb);
+}
+
+static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+
+ mutex_lock(&dev->mt76.mutex);
+ mt7921_mcu_set_rts_thresh(phy, val);
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+
+static int
+mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_ampdu_params *params)
+{
+ enum ieee80211_ampdu_mlme_action action = params->action;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct ieee80211_sta *sta = params->sta;
+ struct ieee80211_txq *txq = sta->txq[params->tid];
+ struct mt7921_sta *msta = (struct mt7921_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);
+ mt7921_mcu_uni_rx_ba(dev, params, true);
+ break;
+ case IEEE80211_AMPDU_RX_STOP:
+ mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
+ mt7921_mcu_uni_rx_ba(dev, params, false);
+ break;
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ mtxq->aggr = true;
+ mtxq->send_bar = false;
+ mt7921_mcu_uni_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->ampdu_state);
+ mt7921_mcu_uni_tx_ba(dev, params, false);
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ set_bit(tid, &msta->ampdu_state);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
+ break;
+ case IEEE80211_AMPDU_TX_STOP_CONT:
+ mtxq->aggr = false;
+ clear_bit(tid, &msta->ampdu_state);
+ mt7921_mcu_uni_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
+mt7921_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
+mt7921_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
+mt7921_get_stats(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats)
+{
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ struct mib_stats *mib = &phy->mib;
+
+ stats->dot11RTSSuccessCount = mib->rts_cnt;
+ stats->dot11RTSFailureCount = mib->rts_retries_cnt;
+ stats->dot11FCSErrorCount = mib->fcs_err_cnt;
+ stats->dot11ACKFailureCount = mib->ack_fail_cnt;
+
+ return 0;
+}
+
+static u64
+mt7921_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ u8 omac_idx = mvif->mt76.omac_idx;
+ bool band = phy != &dev->phy;
+ union {
+ u64 t64;
+ u32 t32[2];
+ } tsf;
+ u16 n;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx;
+ /* TSF software read */
+ mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_MODE);
+ tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0(band));
+ tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1(band));
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return tsf.t64;
+}
+
+static void
+mt7921_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u64 timestamp)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ u8 omac_idx = mvif->mt76.omac_idx;
+ bool band = phy != &dev->phy;
+ union {
+ u64 t64;
+ u32 t32[2];
+ } tsf = { .t64 = timestamp, };
+ u16 n;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ n = omac_idx > HW_BSSID_MAX ? HW_BSSID_0 : omac_idx;
+ mt76_wr(dev, MT_LPON_UTTR0(band), tsf.t32[0]);
+ mt76_wr(dev, MT_LPON_UTTR1(band), tsf.t32[1]);
+ /* TSF software overwrite */
+ mt76_set(dev, MT_LPON_TCR(band, n), MT_LPON_TCR_SW_WRITE);
+
+ mutex_unlock(&dev->mt76.mutex);
+}
+
+static void
+mt7921_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class)
+{
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ struct mt7921_dev *dev = phy->dev;
+
+ mutex_lock(&dev->mt76.mutex);
+ phy->coverage_class = max_t(s16, coverage_class, 0);
+ mt7921_mac_set_timing(phy);
+ mutex_unlock(&dev->mt76.mutex);
+}
+
+void mt7921_scan_work(struct work_struct *work)
+{
+ struct mt7921_phy *phy;
+
+ phy = (struct mt7921_phy *)container_of(work, struct mt7921_phy,
+ scan_work.work);
+
+ while (true) {
+ struct mt7921_mcu_rxd *rxd;
+ struct sk_buff *skb;
+
+ spin_lock_bh(&phy->dev->mt76.lock);
+ skb = __skb_dequeue(&phy->scan_event_list);
+ spin_unlock_bh(&phy->dev->mt76.lock);
+
+ if (!skb)
+ break;
+
+ rxd = (struct mt7921_mcu_rxd *)skb->data;
+ if (rxd->eid == MCU_EVENT_SCHED_SCAN_DONE) {
+ ieee80211_sched_scan_results(phy->mt76->hw);
+ } else if (test_and_clear_bit(MT76_HW_SCANNING,
+ &phy->mt76->state)) {
+ struct cfg80211_scan_info info = {
+ .aborted = false,
+ };
+
+ ieee80211_scan_completed(phy->mt76->hw, &info);
+ }
+ dev_kfree_skb(skb);
+ }
+}
+
+static int
+mt7921_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_scan_request *req)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt76_phy *mphy = hw->priv;
+ int err;
+
+ mutex_lock(&dev->mt76.mutex);
+ err = mt7921_mcu_hw_scan(mphy->priv, vif, req);
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static void
+mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt76_phy *mphy = hw->priv;
+
+ mutex_lock(&dev->mt76.mutex);
+ mt7921_mcu_cancel_hw_scan(mphy->priv, vif);
+ mutex_unlock(&dev->mt76.mutex);
+}
+
+static int
+mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt7921_phy *phy = mt7921_hw_phy(hw);
+ int max_nss = hweight8(hw->wiphy->available_antennas_tx);
+
+ 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;
+ phy->mt76->chainmask = tx_ant;
+
+ mt76_set_stream_caps(phy->mt76, true);
+ mt7921_set_stream_he_caps(phy);
+
+ mutex_unlock(&dev->mt76.mutex);
+
+ return 0;
+}
+
+static void
+mt7921_sta_rc_update(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ u32 changed)
+{
+}
+
+static void mt7921_sta_statistics(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct station_info *sinfo)
+{
+ struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
+ struct mt7921_sta_stats *stats = &msta->stats;
+
+ if (!stats->tx_rate.legacy && !stats->tx_rate.flags)
+ return;
+
+ if (stats->tx_rate.legacy) {
+ sinfo->txrate.legacy = stats->tx_rate.legacy;
+ } else {
+ sinfo->txrate.mcs = stats->tx_rate.mcs;
+ sinfo->txrate.nss = stats->tx_rate.nss;
+ sinfo->txrate.bw = stats->tx_rate.bw;
+ sinfo->txrate.he_gi = stats->tx_rate.he_gi;
+ sinfo->txrate.he_dcm = stats->tx_rate.he_dcm;
+ sinfo->txrate.he_ru_alloc = stats->tx_rate.he_ru_alloc;
+ }
+ sinfo->txrate.flags = stats->tx_rate.flags;
+ sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
+}
+
+const struct ieee80211_ops mt7921_ops = {
+ .tx = mt7921_tx,
+ .start = mt7921_start,
+ .stop = mt7921_stop,
+ .add_interface = mt7921_add_interface,
+ .remove_interface = mt7921_remove_interface,
+ .config = mt7921_config,
+ .conf_tx = mt7921_conf_tx,
+ .configure_filter = mt7921_configure_filter,
+ .bss_info_changed = mt7921_bss_info_changed,
+ .sta_add = mt7921_sta_add,
+ .sta_remove = mt7921_sta_remove,
+ .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
+ .sta_rc_update = mt7921_sta_rc_update,
+ .set_key = mt7921_set_key,
+ .ampdu_action = mt7921_ampdu_action,
+ .set_rts_threshold = mt7921_set_rts_threshold,
+ .wake_tx_queue = mt76_wake_tx_queue,
+ .release_buffered_frames = mt76_release_buffered_frames,
+ .get_txpower = mt76_get_txpower,
+ .get_stats = mt7921_get_stats,
+ .get_tsf = mt7921_get_tsf,
+ .set_tsf = mt7921_set_tsf,
+ .get_survey = mt76_get_survey,
+ .get_antenna = mt76_get_antenna,
+ .set_antenna = mt7921_set_antenna,
+ .set_coverage_class = mt7921_set_coverage_class,
+ .hw_scan = mt7921_hw_scan,
+ .cancel_hw_scan = mt7921_cancel_hw_scan,
+ .sta_statistics = mt7921_sta_statistics,
+};
projects / platform / kernel / linux-rpi.git / commitdiff