// SPDX-License-Identifier: ISC /* * Copyright (C) 2018 Stanislaw Gruszka * Copyright (C) 2016 Felix Fietkau */ #include #include "mt76x02.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) | (8 + (_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), \ } struct ieee80211_rate mt76x02_rates[] = { CCK_RATE(0, 10), CCK_RATE(1, 20), CCK_RATE(2, 55), CCK_RATE(3, 110), OFDM_RATE(0, 60), OFDM_RATE(1, 90), OFDM_RATE(2, 120), OFDM_RATE(3, 180), OFDM_RATE(4, 240), OFDM_RATE(5, 360), OFDM_RATE(6, 480), OFDM_RATE(7, 540), }; EXPORT_SYMBOL_GPL(mt76x02_rates); static const struct ieee80211_iface_limit mt76x02_if_limits[] = { { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) }, { .max = 8, .types = BIT(NL80211_IFTYPE_STATION) | #ifdef CONFIG_MAC80211_MESH BIT(NL80211_IFTYPE_MESH_POINT) | #endif BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_AP) }, }; static const struct ieee80211_iface_limit mt76x02u_if_limits[] = { { .max = 1, .types = BIT(NL80211_IFTYPE_ADHOC) }, { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | #ifdef CONFIG_MAC80211_MESH BIT(NL80211_IFTYPE_MESH_POINT) | #endif BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_AP) }, }; static const struct ieee80211_iface_combination mt76x02_if_comb[] = { { .limits = mt76x02_if_limits, .n_limits = ARRAY_SIZE(mt76x02_if_limits), .max_interfaces = 8, .num_different_channels = 1, .beacon_int_infra_match = true, .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | BIT(NL80211_CHAN_WIDTH_20) | BIT(NL80211_CHAN_WIDTH_40) | BIT(NL80211_CHAN_WIDTH_80), } }; static const struct ieee80211_iface_combination mt76x02u_if_comb[] = { { .limits = mt76x02u_if_limits, .n_limits = ARRAY_SIZE(mt76x02u_if_limits), .max_interfaces = 2, .num_different_channels = 1, .beacon_int_infra_match = true, } }; static void mt76x02_led_set_config(struct mt76_dev *mdev, u8 delay_on, u8 delay_off) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); u32 val; val = FIELD_PREP(MT_LED_STATUS_DURATION, 0xff) | FIELD_PREP(MT_LED_STATUS_OFF, delay_off) | FIELD_PREP(MT_LED_STATUS_ON, delay_on); mt76_wr(dev, MT_LED_S0(mdev->led_pin), val); mt76_wr(dev, MT_LED_S1(mdev->led_pin), val); val = MT_LED_CTRL_REPLAY(mdev->led_pin) | MT_LED_CTRL_KICK(mdev->led_pin); if (mdev->led_al) val |= MT_LED_CTRL_POLARITY(mdev->led_pin); mt76_wr(dev, MT_LED_CTRL, val); } static int mt76x02_led_set_blink(struct led_classdev *led_cdev, unsigned long *delay_on, unsigned long *delay_off) { struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, led_cdev); u8 delta_on, delta_off; delta_off = max_t(u8, *delay_off / 10, 1); delta_on = max_t(u8, *delay_on / 10, 1); mt76x02_led_set_config(mdev, delta_on, delta_off); return 0; } static void mt76x02_led_set_brightness(struct led_classdev *led_cdev, enum led_brightness brightness) { struct mt76_dev *mdev = container_of(led_cdev, struct mt76_dev, led_cdev); if (!brightness) mt76x02_led_set_config(mdev, 0, 0xff); else mt76x02_led_set_config(mdev, 0xff, 0); } void mt76x02_init_device(struct mt76x02_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); struct wiphy *wiphy = hw->wiphy; INIT_DELAYED_WORK(&dev->mt76.mac_work, mt76x02_mac_work); hw->queues = 4; hw->max_rates = 1; hw->max_report_rates = 7; hw->max_rate_tries = 1; hw->extra_tx_headroom = 2; if (mt76_is_usb(&dev->mt76)) { hw->extra_tx_headroom += sizeof(struct mt76x02_txwi) + MT_DMA_HDR_LEN; wiphy->iface_combinations = mt76x02u_if_comb; wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02u_if_comb); } else { INIT_DELAYED_WORK(&dev->wdt_work, mt76x02_wdt_work); mt76x02_dfs_init_detector(dev); wiphy->reg_notifier = mt76x02_regd_notifier; wiphy->iface_combinations = mt76x02_if_comb; wiphy->n_iface_combinations = ARRAY_SIZE(mt76x02_if_comb); /* init led callbacks */ if (IS_ENABLED(CONFIG_MT76_LEDS)) { dev->mt76.led_cdev.brightness_set = mt76x02_led_set_brightness; dev->mt76.led_cdev.blink_set = mt76x02_led_set_blink; } } wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); hw->sta_data_size = sizeof(struct mt76x02_sta); hw->vif_data_size = sizeof(struct mt76x02_vif); ieee80211_hw_set(hw, SUPPORTS_HT_CCK_RATES); ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING); dev->mt76.global_wcid.idx = 255; dev->mt76.global_wcid.hw_key_idx = -1; dev->slottime = 9; if (is_mt76x2(dev)) { dev->mphy.sband_2g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING; dev->mphy.sband_5g.sband.ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING; dev->chainmask = 0x202; dev->mphy.antenna_mask = 3; } else { dev->chainmask = 0x101; dev->mphy.antenna_mask = 1; } } EXPORT_SYMBOL_GPL(mt76x02_init_device); void mt76x02_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, u64 multicast) { struct mt76x02_dev *dev = hw->priv; u32 flags = 0; #define MT76_FILTER(_flag, _hw) do { \ flags |= *total_flags & FIF_##_flag; \ dev->mt76.rxfilter &= ~(_hw); \ dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \ } while (0) mutex_lock(&dev->mt76.mutex); dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_OTHER_BSS; MT76_FILTER(FCSFAIL, MT_RX_FILTR_CFG_CRC_ERR); MT76_FILTER(PLCPFAIL, MT_RX_FILTR_CFG_PHY_ERR); MT76_FILTER(CONTROL, MT_RX_FILTR_CFG_ACK | MT_RX_FILTR_CFG_CTS | MT_RX_FILTR_CFG_CFEND | MT_RX_FILTR_CFG_CFACK | MT_RX_FILTR_CFG_BA | MT_RX_FILTR_CFG_CTRL_RSV); MT76_FILTER(PSPOLL, MT_RX_FILTR_CFG_PSPOLL); *total_flags = flags; mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); mutex_unlock(&dev->mt76.mutex); } EXPORT_SYMBOL_GPL(mt76x02_configure_filter); int mt76x02_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; int idx = 0; memset(msta, 0, sizeof(*msta)); idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT76x02_N_WCIDS); if (idx < 0) return -ENOSPC; msta->vif = mvif; msta->wcid.sta = 1; msta->wcid.idx = idx; msta->wcid.hw_key_idx = -1; mt76x02_mac_wcid_setup(dev, idx, mvif->idx, sta->addr); mt76x02_mac_wcid_set_drop(dev, idx, false); ewma_pktlen_init(&msta->pktlen); if (vif->type == NL80211_IFTYPE_AP) set_bit(MT_WCID_FLAG_CHECK_PS, &msta->wcid.flags); return 0; } EXPORT_SYMBOL_GPL(mt76x02_sta_add); void mt76x02_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; int idx = wcid->idx; mt76x02_mac_wcid_set_drop(dev, idx, true); mt76x02_mac_wcid_setup(dev, idx, 0, NULL); } EXPORT_SYMBOL_GPL(mt76x02_sta_remove); static void mt76x02_vif_init(struct mt76x02_dev *dev, struct ieee80211_vif *vif, unsigned int idx) { struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; struct mt76_txq *mtxq; memset(mvif, 0, sizeof(*mvif)); mvif->idx = idx; mvif->group_wcid.idx = MT_VIF_WCID(idx); mvif->group_wcid.hw_key_idx = -1; mtxq = (struct mt76_txq *)vif->txq->drv_priv; mtxq->wcid = &mvif->group_wcid; } int mt76x02_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct mt76x02_dev *dev = hw->priv; unsigned int idx = 0; /* Allow to change address in HW if we create first interface. */ if (!dev->mphy.vif_mask && (((vif->addr[0] ^ dev->mt76.macaddr[0]) & ~GENMASK(4, 1)) || memcmp(vif->addr + 1, dev->mt76.macaddr + 1, ETH_ALEN - 1))) mt76x02_mac_setaddr(dev, vif->addr); if (vif->addr[0] & BIT(1)) idx = 1 + (((dev->mt76.macaddr[0] ^ vif->addr[0]) >> 2) & 7); /* * Client mode typically only has one configurable BSSID register, * which is used for bssidx=0. This is linked to the MAC address. * Since mac80211 allows changing interface types, and we cannot * force the use of the primary MAC address for a station mode * interface, we need some other way of configuring a per-interface * remote BSSID. * The hardware provides an AP-Client feature, where bssidx 0-7 are * used for AP mode and bssidx 8-15 for client mode. * We shift the station interface bss index by 8 to force the * hardware to recognize the BSSID. * The resulting bssidx mismatch for unicast frames is ignored by hw. */ if (vif->type == NL80211_IFTYPE_STATION) idx += 8; /* vif is already set or idx is 8 for AP/Mesh/... */ if (dev->mphy.vif_mask & BIT(idx) || (vif->type != NL80211_IFTYPE_STATION && idx > 7)) return -EBUSY; dev->mphy.vif_mask |= BIT(idx); mt76x02_vif_init(dev, vif, idx); return 0; } EXPORT_SYMBOL_GPL(mt76x02_add_interface); void mt76x02_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct mt76x02_dev *dev = hw->priv; struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; dev->mphy.vif_mask &= ~BIT(mvif->idx); } EXPORT_SYMBOL_GPL(mt76x02_remove_interface); int mt76x02_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_ampdu_params *params) { enum ieee80211_ampdu_mlme_action action = params->action; struct ieee80211_sta *sta = params->sta; struct mt76x02_dev *dev = hw->priv; struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; struct ieee80211_txq *txq = sta->txq[params->tid]; 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); mt76_set(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); break; case IEEE80211_AMPDU_RX_STOP: mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); mt76_clear(dev, MT_WCID_ADDR(msta->wcid.idx) + 4, BIT(16 + tid)); break; case IEEE80211_AMPDU_TX_OPERATIONAL: mtxq->aggr = true; mtxq->send_bar = false; ieee80211_send_bar(vif, sta->addr, tid, mtxq->agg_ssn); break; case IEEE80211_AMPDU_TX_STOP_FLUSH: case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: mtxq->aggr = false; break; case IEEE80211_AMPDU_TX_START: mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn); ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; break; case IEEE80211_AMPDU_TX_STOP_CONT: mtxq->aggr = false; ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); break; } mutex_unlock(&dev->mt76.mutex); return ret; } EXPORT_SYMBOL_GPL(mt76x02_ampdu_action); int mt76x02_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 mt76x02_dev *dev = hw->priv; struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; struct mt76x02_sta *msta; struct mt76_wcid *wcid; int idx = key->keyidx; int ret; /* fall back to sw encryption for unsupported ciphers */ switch (key->cipher) { case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: case WLAN_CIPHER_SUITE_TKIP: case WLAN_CIPHER_SUITE_CCMP: break; default: return -EOPNOTSUPP; } /* * The hardware does not support per-STA RX GTK, fall back * 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; /* * In USB AP mode, broadcast/multicast frames are setup in beacon * data registers and sent via HW beacons engine, they require to * be already encrypted. */ if (mt76_is_usb(&dev->mt76) && vif->type == NL80211_IFTYPE_AP && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) return -EOPNOTSUPP; /* MT76x0 GTK offloading does not work with more than one VIF */ if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) return -EOPNOTSUPP; msta = sta ? (struct mt76x02_sta *)sta->drv_priv : NULL; wcid = msta ? &msta->wcid : &mvif->group_wcid; if (cmd == SET_KEY) { key->hw_key_idx = wcid->idx; wcid->hw_key_idx = idx; if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) { key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX; wcid->sw_iv = true; } } else { if (idx == wcid->hw_key_idx) { wcid->hw_key_idx = -1; wcid->sw_iv = false; } key = NULL; } mt76_wcid_key_setup(&dev->mt76, wcid, key); if (!msta) { if (key || wcid->hw_key_idx == idx) { ret = mt76x02_mac_wcid_set_key(dev, wcid->idx, key); if (ret) return ret; } return mt76x02_mac_shared_key_setup(dev, mvif->idx, idx, key); } return mt76x02_mac_wcid_set_key(dev, msta->wcid.idx, key); } EXPORT_SYMBOL_GPL(mt76x02_set_key); int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) { struct mt76x02_dev *dev = hw->priv; u8 cw_min = 5, cw_max = 10, qid; u32 val; qid = dev->mt76.q_tx[queue]->hw_idx; if (params->cw_min) cw_min = fls(params->cw_min); if (params->cw_max) cw_max = fls(params->cw_max); val = FIELD_PREP(MT_EDCA_CFG_TXOP, params->txop) | FIELD_PREP(MT_EDCA_CFG_AIFSN, params->aifs) | FIELD_PREP(MT_EDCA_CFG_CWMIN, cw_min) | FIELD_PREP(MT_EDCA_CFG_CWMAX, cw_max); mt76_wr(dev, MT_EDCA_CFG_AC(qid), val); val = mt76_rr(dev, MT_WMM_TXOP(qid)); val &= ~(MT_WMM_TXOP_MASK << MT_WMM_TXOP_SHIFT(qid)); val |= params->txop << MT_WMM_TXOP_SHIFT(qid); mt76_wr(dev, MT_WMM_TXOP(qid), val); val = mt76_rr(dev, MT_WMM_AIFSN); val &= ~(MT_WMM_AIFSN_MASK << MT_WMM_AIFSN_SHIFT(qid)); val |= params->aifs << MT_WMM_AIFSN_SHIFT(qid); mt76_wr(dev, MT_WMM_AIFSN, val); val = mt76_rr(dev, MT_WMM_CWMIN); val &= ~(MT_WMM_CWMIN_MASK << MT_WMM_CWMIN_SHIFT(qid)); val |= cw_min << MT_WMM_CWMIN_SHIFT(qid); mt76_wr(dev, MT_WMM_CWMIN, val); val = mt76_rr(dev, MT_WMM_CWMAX); val &= ~(MT_WMM_CWMAX_MASK << MT_WMM_CWMAX_SHIFT(qid)); val |= cw_max << MT_WMM_CWMAX_SHIFT(qid); mt76_wr(dev, MT_WMM_CWMAX, val); return 0; } EXPORT_SYMBOL_GPL(mt76x02_conf_tx); void mt76x02_set_tx_ackto(struct mt76x02_dev *dev) { u8 ackto, sifs, slottime = dev->slottime; /* As defined by IEEE 802.11-2007 17.3.8.6 */ slottime += 3 * dev->coverage_class; mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_OFDM_SIFS); ackto = slottime + sifs; mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG, MT_TX_TIMEOUT_CFG_ACKTO, ackto); } EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto); void mt76x02_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) { struct mt76x02_dev *dev = hw->priv; mutex_lock(&dev->mt76.mutex); dev->coverage_class = max_t(s16, coverage_class, 0); mt76x02_set_tx_ackto(dev); mutex_unlock(&dev->mt76.mutex); } EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class); int mt76x02_set_rts_threshold(struct ieee80211_hw *hw, u32 val) { struct mt76x02_dev *dev = hw->priv; if (val != ~0 && val > 0xffff) return -EINVAL; mutex_lock(&dev->mt76.mutex); mt76x02_mac_set_rts_thresh(dev, val); mutex_unlock(&dev->mt76.mutex); return 0; } EXPORT_SYMBOL_GPL(mt76x02_set_rts_threshold); void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct mt76x02_dev *dev = hw->priv; struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; struct ieee80211_sta_rates *rates = rcu_dereference(sta->rates); struct ieee80211_tx_rate rate = {}; if (!rates) return; rate.idx = rates->rate[0].idx; rate.flags = rates->rate[0].flags; mt76x02_mac_wcid_set_rate(dev, &msta->wcid, &rate); } EXPORT_SYMBOL_GPL(mt76x02_sta_rate_tbl_update); void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len) { int hdrlen; if (!len) return; hdrlen = ieee80211_get_hdrlen_from_skb(skb); memmove(skb->data + len, skb->data, hdrlen); skb_pull(skb, len); } EXPORT_SYMBOL_GPL(mt76x02_remove_hdr_pad); void mt76x02_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct mt76x02_dev *dev = hw->priv; clear_bit(MT76_SCANNING, &dev->mphy.state); if (dev->cal.gain_init_done) { /* Restore AGC gain and resume calibration after scanning. */ dev->cal.low_gain = -1; ieee80211_queue_delayed_work(hw, &dev->cal_work, 0); } } EXPORT_SYMBOL_GPL(mt76x02_sw_scan_complete); void mt76x02_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); struct mt76x02_sta *msta = (struct mt76x02_sta *)sta->drv_priv; int idx = msta->wcid.idx; mt76_stop_tx_queues(&dev->mt76, sta, true); if (mt76_is_mmio(mdev)) mt76x02_mac_wcid_set_drop(dev, idx, ps); } EXPORT_SYMBOL_GPL(mt76x02_sta_ps); void mt76x02_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *info, u32 changed) { struct mt76x02_vif *mvif = (struct mt76x02_vif *)vif->drv_priv; struct mt76x02_dev *dev = hw->priv; mutex_lock(&dev->mt76.mutex); if (changed & BSS_CHANGED_BSSID) mt76x02_mac_set_bssid(dev, mvif->idx, info->bssid); if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT) mt76x02_mac_set_tx_protection(dev, info->use_cts_prot, info->ht_operation_mode); if (changed & BSS_CHANGED_BEACON_INT) { mt76_rmw_field(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_INTVAL, info->beacon_int << 4); dev->mt76.beacon_int = info->beacon_int; } if (changed & BSS_CHANGED_BEACON_ENABLED) mt76x02_mac_set_beacon_enable(dev, vif, info->enable_beacon); if (changed & BSS_CHANGED_ERP_PREAMBLE) mt76x02_mac_set_short_preamble(dev, info->use_short_preamble); if (changed & BSS_CHANGED_ERP_SLOT) { int slottime = info->use_short_slot ? 9 : 20; dev->slottime = slottime; mt76x02_set_tx_ackto(dev); } mutex_unlock(&dev->mt76.mutex); } EXPORT_SYMBOL_GPL(mt76x02_bss_info_changed); void mt76x02_config_mac_addr_list(struct mt76x02_dev *dev) { struct ieee80211_hw *hw = mt76_hw(dev); struct wiphy *wiphy = hw->wiphy; int i; for (i = 0; i < ARRAY_SIZE(dev->macaddr_list); i++) { u8 *addr = dev->macaddr_list[i].addr; memcpy(addr, dev->mt76.macaddr, ETH_ALEN); if (!i) continue; addr[0] |= BIT(1); addr[0] ^= ((i - 1) << 2); } wiphy->addresses = dev->macaddr_list; wiphy->n_addresses = ARRAY_SIZE(dev->macaddr_list); } EXPORT_SYMBOL_GPL(mt76x02_config_mac_addr_list); MODULE_LICENSE("Dual BSD/GPL");