diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7615/main.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/main.c | 1346 |
1 files changed, 1346 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c new file mode 100644 index 000000000..a3b0d4e91 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -0,0 +1,1346 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2019 MediaTek Inc. + * + * Author: Roy Luo <royluo@google.com> + * Ryder Lee <ryder.lee@mediatek.com> + * Felix Fietkau <nbd@nbd.name> + * Lorenzo Bianconi <lorenzo@kernel.org> + */ + +#include <linux/etherdevice.h> +#include <linux/module.h> +#include "mt7615.h" +#include "mcu.h" + +static bool mt7615_dev_running(struct mt7615_dev *dev) +{ + struct mt7615_phy *phy; + + if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) + return true; + + phy = mt7615_ext_phy(dev); + + return phy && test_bit(MT76_STATE_RUNNING, &phy->mt76->state); +} + +static int mt7615_start(struct ieee80211_hw *hw) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + unsigned long timeout; + bool running; + int ret; + + if (!mt7615_wait_for_mcu_init(dev)) + return -EIO; + + mt7615_mutex_acquire(dev); + + running = mt7615_dev_running(dev); + + if (!running) { + ret = mt7615_mcu_set_pm(dev, 0, 0); + if (ret) + goto out; + + ret = mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, true, false); + if (ret) + goto out; + + mt7615_mac_enable_nf(dev, 0); + } + + if (phy != &dev->phy) { + ret = mt7615_mcu_set_pm(dev, 1, 0); + if (ret) + goto out; + + ret = mt76_connac_mcu_set_mac_enable(&dev->mt76, 1, true, false); + if (ret) + goto out; + + mt7615_mac_enable_nf(dev, 1); + } + + if (mt7615_firmware_offload(dev)) { + ret = mt76_connac_mcu_set_channel_domain(phy->mt76); + if (ret) + goto out; + + ret = mt76_connac_mcu_set_rate_txpower(phy->mt76); + if (ret) + goto out; + } + + ret = mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH)); + if (ret) + goto out; + + set_bit(MT76_STATE_RUNNING, &phy->mt76->state); + + timeout = mt7615_get_macwork_timeout(dev); + ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, timeout); + + if (!running) + mt7615_mac_reset_counters(dev); + +out: + mt7615_mutex_release(dev); + + return ret; +} + +static void mt7615_stop(struct ieee80211_hw *hw) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + + cancel_delayed_work_sync(&phy->mt76->mac_work); + del_timer_sync(&phy->roc_timer); + cancel_work_sync(&phy->roc_work); + + cancel_delayed_work_sync(&dev->pm.ps_work); + cancel_work_sync(&dev->pm.wake_work); + + mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); + + mt7615_mutex_acquire(dev); + + mt76_testmode_reset(phy->mt76, true); + + clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); + cancel_delayed_work_sync(&phy->scan_work); + + if (phy != &dev->phy) { + mt7615_mcu_set_pm(dev, 1, 1); + mt76_connac_mcu_set_mac_enable(&dev->mt76, 1, false, false); + } + + if (!mt7615_dev_running(dev)) { + mt7615_mcu_set_pm(dev, 0, 1); + mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false); + } + + mt7615_mutex_release(dev); +} + +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; + + /* 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_ADHOC: + case NL80211_IFTYPE_MESH_POINT: + 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 int mt7615_add_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mt76_txq *mtxq; + bool ext_phy = phy != &dev->phy; + int idx, ret = 0; + + mt7615_mutex_acquire(dev); + + mt76_testmode_reset(phy->mt76, true); + + 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 >= MT7615_MAX_INTERFACES) { + ret = -ENOSPC; + goto out; + } + + idx = get_omac_idx(vif->type, dev->omac_mask); + if (idx < 0) { + ret = -ENOSPC; + goto out; + } + mvif->mt76.omac_idx = idx; + + mvif->mt76.band_idx = ext_phy; + mvif->mt76.wmm_idx = vif->type != NL80211_IFTYPE_AP; + if (ext_phy) + mvif->mt76.wmm_idx += 2; + + dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx); + dev->omac_mask |= BIT_ULL(mvif->mt76.omac_idx); + phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx); + + ret = mt7615_mcu_set_dbdc(dev); + if (ret) + goto out; + + idx = MT7615_WTBL_RESERVED - mvif->mt76.idx; + + INIT_LIST_HEAD(&mvif->sta.poll_list); + mvif->sta.wcid.idx = idx; + mvif->sta.wcid.phy_idx = mvif->mt76.band_idx; + mvif->sta.wcid.hw_key_idx = -1; + mt76_packet_id_init(&mvif->sta.wcid); + + mt7615_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 = idx; + } + + ret = mt7615_mcu_add_dev_info(phy, vif, true); +out: + mt7615_mutex_release(dev); + + return ret; +} + +static void mt7615_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_sta *msta = &mvif->sta; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + int idx = msta->wcid.idx; + + mt7615_mutex_acquire(dev); + + mt7615_mcu_add_bss_info(phy, vif, NULL, false); + mt7615_mcu_sta_add(phy, vif, NULL, false); + + mt76_testmode_reset(phy->mt76, true); + if (vif == phy->monitor_vif) + phy->monitor_vif = NULL; + + mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid); + + mt7615_mcu_add_dev_info(phy, vif, false); + + rcu_assign_pointer(dev->mt76.wcid[idx], NULL); + + dev->mt76.vif_mask &= ~BIT_ULL(mvif->mt76.idx); + dev->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx); + phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx); + + mt7615_mutex_release(dev); + + 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); + + mt76_packet_id_flush(&dev->mt76, &mvif->sta.wcid); +} + +int mt7615_set_channel(struct mt7615_phy *phy) +{ + struct mt7615_dev *dev = phy->dev; + bool ext_phy = phy != &dev->phy; + int ret; + + cancel_delayed_work_sync(&phy->mt76->mac_work); + + mt7615_mutex_acquire(dev); + + set_bit(MT76_RESET, &phy->mt76->state); + + mt76_set_channel(phy->mt76); + + if (is_mt7615(&dev->mt76) && dev->flash_eeprom) { + ret = mt7615_mcu_apply_rx_dcoc(phy); + if (ret) + goto out; + + ret = mt7615_mcu_apply_tx_dpd(phy); + if (ret) + goto out; + } + + ret = mt7615_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH)); + if (ret) + goto out; + + mt7615_mac_set_timing(phy); + ret = mt7615_dfs_init_radar_detector(phy); + if (ret) + goto out; + + mt7615_mac_cca_stats_reset(phy); + ret = mt7615_mcu_set_sku_en(phy, true); + if (ret) + goto out; + + mt7615_mac_reset_counters(dev); + phy->noise = 0; + phy->chfreq = mt76_rr(dev, MT_CHFREQ(ext_phy)); + +out: + clear_bit(MT76_RESET, &phy->mt76->state); + + mt7615_mutex_release(dev); + + mt76_worker_schedule(&dev->mt76.tx_worker); + if (!mt76_testmode_enabled(phy->mt76)) { + unsigned long timeout = mt7615_get_macwork_timeout(dev); + + ieee80211_queue_delayed_work(phy->mt76->hw, + &phy->mt76->mac_work, timeout); + } + + return ret; +} + +static int mt7615_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 mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_sta *msta = sta ? (struct mt7615_sta *)sta->drv_priv : + &mvif->sta; + struct mt76_wcid *wcid = &msta->wcid; + int idx = key->keyidx, err = 0; + u8 *wcid_keyidx = &wcid->hw_key_idx; + + /* 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_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + default: + return -EOPNOTSUPP; + } + + mt7615_mutex_acquire(dev); + + if (cmd == SET_KEY && !sta && !mvif->mt76.cipher) { + mvif->mt76.cipher = mt76_connac_mcu_get_cipher(key->cipher); + mt7615_mcu_add_bss_info(phy, vif, NULL, 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 (mt76_is_mmio(&dev->mt76)) + err = mt7615_mac_wtbl_set_key(dev, wcid, key); + else + err = __mt7615_mac_wtbl_set_key(dev, wcid, key); + +out: + mt7615_mutex_release(dev); + + return err; +} + +static int mt7615_set_sar_specs(struct ieee80211_hw *hw, + const struct cfg80211_sar_specs *sar) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + int err; + + if (!cfg80211_chandef_valid(&phy->mt76->chandef)) + return -EINVAL; + + err = mt76_init_sar_power(hw, sar); + if (err) + return err; + + if (mt7615_firmware_offload(phy->dev)) + return mt76_connac_mcu_set_rate_txpower(phy->mt76); + + ieee80211_stop_queues(hw); + err = mt7615_set_channel(phy); + ieee80211_wake_queues(hw); + + return err; +} + +static int mt7615_config(struct ieee80211_hw *hw, u32 changed) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + bool band = phy != &dev->phy; + int ret = 0; + + if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | + IEEE80211_CONF_CHANGE_POWER)) { +#ifdef CONFIG_NL80211_TESTMODE + if (phy->mt76->test.state != MT76_TM_STATE_OFF) { + mt7615_mutex_acquire(dev); + mt76_testmode_reset(phy->mt76, false); + mt7615_mutex_release(dev); + } +#endif + ieee80211_stop_queues(hw); + ret = mt7615_set_channel(phy); + ieee80211_wake_queues(hw); + } + + mt7615_mutex_acquire(dev); + + if (changed & IEEE80211_CONF_CHANGE_MONITOR) { + mt76_testmode_reset(phy->mt76, true); + + if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) + phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC; + else + phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC; + + mt76_wr(dev, MT_WF_RFCR(band), phy->rxfilter); + } + + mt7615_mutex_release(dev); + + return ret; +} + +static int +mt7615_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + unsigned int link_id, u16 queue, + const struct ieee80211_tx_queue_params *params) +{ + struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + int err; + + mt7615_mutex_acquire(dev); + + queue = mt7615_lmac_mapping(dev, queue); + queue += mvif->wmm_idx * MT7615_MAX_WMM_SETS; + err = mt7615_mcu_set_wmm(dev, queue, params); + + mt7615_mutex_release(dev); + + return err; +} + +static void mt7615_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *total_flags, + u64 multicast) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_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; + + mt7615_mutex_acquire(dev); + +#define MT76_FILTER(_flag, _hw) do { \ + flags |= *total_flags & FIF_##_flag; \ + phy->rxfilter &= ~(_hw); \ + if (!mt76_testmode_enabled(phy->mt76)) \ + phy->rxfilter |= !(flags & FIF_##_flag) * (_hw);\ + } while (0) + + phy->rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS | + 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); + + if (phy->n_beacon_vif || !mt7615_firmware_offload(dev)) + phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_BEACON; + + 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); + + mt7615_mutex_release(dev); +} + +static void mt7615_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *info, + u64 changed) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + + mt7615_mutex_acquire(dev); + + if (changed & BSS_CHANGED_ERP_SLOT) { + int slottime = info->use_short_slot ? 9 : 20; + + if (slottime != phy->slottime) { + phy->slottime = slottime; + mt7615_mac_set_timing(phy); + } + } + + if (changed & BSS_CHANGED_BEACON_ENABLED && info->enable_beacon) { + mt7615_mcu_add_bss_info(phy, vif, NULL, true); + mt7615_mcu_sta_add(phy, vif, NULL, true); + + if (mt7615_firmware_offload(dev) && vif->p2p) + mt76_connac_mcu_set_p2p_oppps(hw, vif); + } + + if (changed & (BSS_CHANGED_BEACON | + BSS_CHANGED_BEACON_ENABLED)) + mt7615_mcu_add_beacon(dev, hw, vif, info->enable_beacon); + + if (changed & BSS_CHANGED_PS) + mt76_connac_mcu_set_vif_ps(&dev->mt76, vif); + + if ((changed & BSS_CHANGED_ARP_FILTER) && + mt7615_firmware_offload(dev)) { + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + + mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76, + info); + } + + if (changed & BSS_CHANGED_ASSOC) + mt7615_mac_set_beacon_filter(phy, vif, vif->cfg.assoc); + + mt7615_mutex_release(dev); +} + +static void +mt7615_channel_switch_beacon(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_chan_def *chandef) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + + mt7615_mutex_acquire(dev); + mt7615_mcu_add_beacon(dev, hw, vif, true); + mt7615_mutex_release(dev); +} + +int mt7615_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_phy *phy; + int idx, err; + + idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7615_WTBL_STA - 1); + if (idx < 0) + return -ENOSPC; + + INIT_LIST_HEAD(&msta->poll_list); + msta->vif = mvif; + msta->wcid.sta = 1; + msta->wcid.idx = idx; + msta->wcid.phy_idx = mvif->mt76.band_idx; + + phy = mvif->mt76.band_idx ? mt7615_ext_phy(dev) : &dev->phy; + err = mt76_connac_pm_wake(phy->mt76, &dev->pm); + if (err) + return err; + + if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) { + err = mt7615_mcu_add_bss_info(phy, vif, sta, true); + if (err) + return err; + } + + mt7615_mac_wtbl_update(dev, idx, + MT_WTBL_UPDATE_ADM_COUNT_CLEAR); + err = mt7615_mcu_sta_add(&dev->phy, vif, sta, true); + if (err) + return err; + + mt76_connac_power_save_sched(phy->mt76, &dev->pm); + + return err; +} +EXPORT_SYMBOL_GPL(mt7615_mac_sta_add); + +void mt7615_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); + struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_phy *phy; + + mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid); + + phy = mvif->mt76.band_idx ? mt7615_ext_phy(dev) : &dev->phy; + mt76_connac_pm_wake(phy->mt76, &dev->pm); + + mt7615_mcu_sta_add(&dev->phy, vif, sta, false); + mt7615_mac_wtbl_update(dev, msta->wcid.idx, + MT_WTBL_UPDATE_ADM_COUNT_CLEAR); + if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) + mt7615_mcu_add_bss_info(phy, vif, sta, false); + + 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); + + mt76_connac_power_save_sched(phy->mt76, &dev->pm); +} +EXPORT_SYMBOL_GPL(mt7615_mac_sta_remove); + +static void mt7615_sta_rate_tbl_update(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; + struct ieee80211_sta_rates *sta_rates = rcu_dereference(sta->rates); + int i; + + if (!sta_rates) + return; + + spin_lock_bh(&dev->mt76.lock); + for (i = 0; i < ARRAY_SIZE(msta->rates); i++) { + msta->rates[i].idx = sta_rates->rate[i].idx; + msta->rates[i].count = sta_rates->rate[i].count; + msta->rates[i].flags = sta_rates->rate[i].flags; + + if (msta->rates[i].idx < 0 || !msta->rates[i].count) + break; + } + msta->n_rates = i; + if (mt76_connac_pm_ref(phy->mt76, &dev->pm)) { + mt7615_mac_set_rates(phy, msta, NULL, msta->rates); + mt76_connac_pm_unref(phy->mt76, &dev->pm); + } + spin_unlock_bh(&dev->mt76.lock); +} + +void mt7615_tx_worker(struct mt76_worker *w) +{ + struct mt7615_dev *dev = container_of(w, struct mt7615_dev, + mt76.tx_worker); + + if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) { + queue_work(dev->mt76.wq, &dev->pm.wake_work); + return; + } + + mt76_tx_worker_run(&dev->mt76); + mt76_connac_pm_unref(&dev->mphy, &dev->pm); +} + +static void mt7615_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) +{ + struct mt7615_dev *dev = mt7615_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; + struct mt7615_sta *msta = NULL; + int qid; + + if (control->sta) { + msta = (struct mt7615_sta *)control->sta->drv_priv; + wcid = &msta->wcid; + } + + if (vif && !control->sta) { + struct mt7615_vif *mvif; + + mvif = (struct mt7615_vif *)vif->drv_priv; + msta = &mvif->sta; + wcid = &msta->wcid; + } + + if (mt76_connac_pm_ref(mphy, &dev->pm)) { + mt76_tx(mphy, control->sta, wcid, skb); + mt76_connac_pm_unref(mphy, &dev->pm); + return; + } + + qid = skb_get_queue_mapping(skb); + if (qid >= MT_TXQ_PSD) { + qid = IEEE80211_AC_BE; + skb_set_queue_mapping(skb, qid); + } + + mt76_connac_pm_queue_skb(hw, &dev->pm, wcid, skb); +} + +static int mt7615_set_rts_threshold(struct ieee80211_hw *hw, u32 val) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + int err, band = phy != &dev->phy; + + mt7615_mutex_acquire(dev); + err = mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, band); + mt7615_mutex_release(dev); + + return err; +} + +static int +mt7615_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_ampdu_params *params) +{ + enum ieee80211_ampdu_mlme_action action = params->action; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct ieee80211_sta *sta = params->sta; + struct ieee80211_txq *txq = sta->txq[params->tid]; + struct mt7615_sta *msta = (struct mt7615_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; + + mt7615_mutex_acquire(dev); + + switch (action) { + case IEEE80211_AMPDU_RX_START: + mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn, + params->buf_size); + ret = mt7615_mcu_add_rx_ba(dev, params, true); + break; + case IEEE80211_AMPDU_RX_STOP: + mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid); + ret = mt7615_mcu_add_rx_ba(dev, params, false); + break; + case IEEE80211_AMPDU_TX_OPERATIONAL: + mtxq->aggr = true; + mtxq->send_bar = false; + ret = mt7615_mcu_add_tx_ba(dev, params, true); + ssn = mt7615_mac_get_sta_tid_sn(dev, msta->wcid.idx, tid); + ieee80211_send_bar(vif, sta->addr, tid, + IEEE80211_SN_TO_SEQ(ssn)); + break; + case IEEE80211_AMPDU_TX_STOP_FLUSH: + case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: + mtxq->aggr = false; + ret = mt7615_mcu_add_tx_ba(dev, params, false); + break; + case IEEE80211_AMPDU_TX_START: + ssn = mt7615_mac_get_sta_tid_sn(dev, msta->wcid.idx, tid); + params->ssn = ssn; + ret = IEEE80211_AMPDU_TX_START_IMMEDIATE; + break; + case IEEE80211_AMPDU_TX_STOP_CONT: + mtxq->aggr = false; + ret = mt7615_mcu_add_tx_ba(dev, params, false); + ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); + break; + } + mt7615_mutex_release(dev); + + return ret; +} + +static int +mt7615_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 +mt7615_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 +mt7615_get_stats(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mib_stats *mib = &phy->mib; + + mt7615_mutex_acquire(phy->dev); + + stats->dot11RTSSuccessCount = mib->rts_cnt; + stats->dot11RTSFailureCount = mib->rts_retries_cnt; + stats->dot11FCSErrorCount = mib->fcs_err_cnt; + stats->dot11ACKFailureCount = mib->ack_fail_cnt; + + mt7615_mutex_release(phy->dev); + + return 0; +} + +static u64 +mt7615_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + union { + u64 t64; + u32 t32[2]; + } tsf; + u16 idx = mvif->mt76.omac_idx; + u32 reg; + + idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx; + reg = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx); + + mt7615_mutex_acquire(dev); + + /* TSF read */ + mt76_rmw(dev, reg, MT_LPON_TCR_MODE, MT_LPON_TCR_READ); + tsf.t32[0] = mt76_rr(dev, MT_LPON_UTTR0); + tsf.t32[1] = mt76_rr(dev, MT_LPON_UTTR1); + + mt7615_mutex_release(dev); + + return tsf.t64; +} + +static void +mt7615_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u64 timestamp) +{ + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + union { + u64 t64; + u32 t32[2]; + } tsf = { .t64 = timestamp, }; + u16 idx = mvif->mt76.omac_idx; + u32 reg; + + idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx; + reg = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx); + + mt7615_mutex_acquire(dev); + + mt76_wr(dev, MT_LPON_UTTR0, tsf.t32[0]); + mt76_wr(dev, MT_LPON_UTTR1, tsf.t32[1]); + /* TSF software overwrite */ + mt76_rmw(dev, reg, MT_LPON_TCR_MODE, MT_LPON_TCR_WRITE); + + mt7615_mutex_release(dev); +} + +static void +mt7615_offset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + s64 timestamp) +{ + struct mt7615_vif *mvif = (struct mt7615_vif *)vif->drv_priv; + struct mt7615_dev *dev = mt7615_hw_dev(hw); + union { + u64 t64; + u32 t32[2]; + } tsf = { .t64 = timestamp, }; + u16 idx = mvif->mt76.omac_idx; + u32 reg; + + idx = idx > HW_BSSID_MAX ? HW_BSSID_0 : idx; + reg = idx > 1 ? MT_LPON_TCR2(idx): MT_LPON_TCR0(idx); + + mt7615_mutex_acquire(dev); + + mt76_wr(dev, MT_LPON_UTTR0, tsf.t32[0]); + mt76_wr(dev, MT_LPON_UTTR1, tsf.t32[1]); + /* TSF software adjust*/ + mt76_rmw(dev, reg, MT_LPON_TCR_MODE, MT_LPON_TCR_ADJUST); + + mt7615_mutex_release(dev); +} + +static void +mt7615_set_coverage_class(struct ieee80211_hw *hw, s16 coverage_class) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mt7615_dev *dev = phy->dev; + + mt7615_mutex_acquire(dev); + phy->coverage_class = max_t(s16, coverage_class, 0); + mt7615_mac_set_timing(phy); + mt7615_mutex_release(dev); +} + +static int +mt7615_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_phy *phy = mt7615_hw_phy(hw); + int max_nss = hweight8(hw->wiphy->available_antennas_tx); + bool ext_phy = phy != &dev->phy; + + 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; + + mt7615_mutex_acquire(dev); + + phy->mt76->antenna_mask = tx_ant; + if (ext_phy) { + if (dev->chainmask == 0xf) + tx_ant <<= 2; + else + tx_ant <<= 1; + } + phy->mt76->chainmask = tx_ant; + + mt76_set_stream_caps(phy->mt76, true); + + mt7615_mutex_release(dev); + + return 0; +} + +static void mt7615_roc_iter(void *priv, u8 *mac, + struct ieee80211_vif *vif) +{ + struct mt7615_phy *phy = priv; + + mt7615_mcu_set_roc(phy, vif, NULL, 0); +} + +void mt7615_roc_work(struct work_struct *work) +{ + struct mt7615_phy *phy; + + phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, + roc_work); + + if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) + return; + + mt7615_mutex_acquire(phy->dev); + ieee80211_iterate_active_interfaces(phy->mt76->hw, + IEEE80211_IFACE_ITER_RESUME_ALL, + mt7615_roc_iter, phy); + mt7615_mutex_release(phy->dev); + ieee80211_remain_on_channel_expired(phy->mt76->hw); +} + +void mt7615_roc_timer(struct timer_list *timer) +{ + struct mt7615_phy *phy = from_timer(phy, timer, roc_timer); + + ieee80211_queue_work(phy->mt76->hw, &phy->roc_work); +} + +void mt7615_scan_work(struct work_struct *work) +{ + struct mt7615_phy *phy; + + phy = (struct mt7615_phy *)container_of(work, struct mt7615_phy, + scan_work.work); + + while (true) { + struct mt7615_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 mt7615_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 +mt7615_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct ieee80211_scan_request *req) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt76_phy *mphy = hw->priv; + int err; + + /* fall-back to sw-scan */ + if (!mt7615_firmware_offload(dev)) + return 1; + + mt7615_mutex_acquire(dev); + err = mt76_connac_mcu_hw_scan(mphy, vif, req); + mt7615_mutex_release(dev); + + return err; +} + +static void +mt7615_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt76_phy *mphy = hw->priv; + + mt7615_mutex_acquire(dev); + mt76_connac_mcu_cancel_hw_scan(mphy, vif); + mt7615_mutex_release(dev); +} + +static int +mt7615_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *req, + struct ieee80211_scan_ies *ies) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt76_phy *mphy = hw->priv; + int err; + + if (!mt7615_firmware_offload(dev)) + return -EOPNOTSUPP; + + mt7615_mutex_acquire(dev); + + err = mt76_connac_mcu_sched_scan_req(mphy, vif, req); + if (err < 0) + goto out; + + err = mt76_connac_mcu_sched_scan_enable(mphy, vif, true); +out: + mt7615_mutex_release(dev); + + return err; +} + +static int +mt7615_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt76_phy *mphy = hw->priv; + int err; + + if (!mt7615_firmware_offload(dev)) + return -EOPNOTSUPP; + + mt7615_mutex_acquire(dev); + err = mt76_connac_mcu_sched_scan_enable(mphy, vif, false); + mt7615_mutex_release(dev); + + return err; +} + +static int mt7615_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_channel *chan, + int duration, + enum ieee80211_roc_type type) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + int err; + + if (test_and_set_bit(MT76_STATE_ROC, &phy->mt76->state)) + return 0; + + mt7615_mutex_acquire(phy->dev); + + err = mt7615_mcu_set_roc(phy, vif, chan, duration); + if (err < 0) { + clear_bit(MT76_STATE_ROC, &phy->mt76->state); + goto out; + } + + if (!wait_event_timeout(phy->roc_wait, phy->roc_grant, HZ)) { + mt7615_mcu_set_roc(phy, vif, NULL, 0); + clear_bit(MT76_STATE_ROC, &phy->mt76->state); + err = -ETIMEDOUT; + } + +out: + mt7615_mutex_release(phy->dev); + + return err; +} + +static int mt7615_cancel_remain_on_channel(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + int err; + + if (!test_and_clear_bit(MT76_STATE_ROC, &phy->mt76->state)) + return 0; + + del_timer_sync(&phy->roc_timer); + cancel_work_sync(&phy->roc_work); + + mt7615_mutex_acquire(phy->dev); + err = mt7615_mcu_set_roc(phy, vif, NULL, 0); + mt7615_mutex_release(phy->dev); + + return err; +} + +static void mt7615_sta_set_decap_offload(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + bool enabled) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; + + mt7615_mutex_acquire(dev); + + if (enabled) + set_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags); + else + clear_bit(MT_WCID_FLAG_HDR_TRANS, &msta->wcid.flags); + + mt7615_mcu_set_sta_decap_offload(dev, vif, sta); + + mt7615_mutex_release(dev); +} + +#ifdef CONFIG_PM +static int mt7615_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mt7615_dev *dev = mt7615_hw_dev(hw); + int err = 0; + + cancel_delayed_work_sync(&dev->pm.ps_work); + mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); + + mt7615_mutex_acquire(dev); + + clear_bit(MT76_STATE_RUNNING, &phy->mt76->state); + cancel_delayed_work_sync(&phy->scan_work); + cancel_delayed_work_sync(&phy->mt76->mac_work); + + set_bit(MT76_STATE_SUSPEND, &phy->mt76->state); + ieee80211_iterate_active_interfaces(hw, + IEEE80211_IFACE_ITER_RESUME_ALL, + mt76_connac_mcu_set_suspend_iter, + phy->mt76); + + if (!mt7615_dev_running(dev)) + err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, true); + + mt7615_mutex_release(dev); + + return err; +} + +static int mt7615_resume(struct ieee80211_hw *hw) +{ + struct mt7615_phy *phy = mt7615_hw_phy(hw); + struct mt7615_dev *dev = mt7615_hw_dev(hw); + unsigned long timeout; + bool running; + + mt7615_mutex_acquire(dev); + + running = mt7615_dev_running(dev); + set_bit(MT76_STATE_RUNNING, &phy->mt76->state); + + if (!running) { + int err; + + err = mt76_connac_mcu_set_hif_suspend(&dev->mt76, false); + if (err < 0) { + mt7615_mutex_release(dev); + return err; + } + } + + clear_bit(MT76_STATE_SUSPEND, &phy->mt76->state); + ieee80211_iterate_active_interfaces(hw, + IEEE80211_IFACE_ITER_RESUME_ALL, + mt76_connac_mcu_set_suspend_iter, + phy->mt76); + + timeout = mt7615_get_macwork_timeout(dev); + ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work, timeout); + + mt7615_mutex_release(dev); + + return 0; +} + +static void mt7615_set_wakeup(struct ieee80211_hw *hw, bool enabled) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + struct mt76_dev *mdev = &dev->mt76; + + device_set_wakeup_enable(mdev->dev, enabled); +} + +static void mt7615_set_rekey_data(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_gtk_rekey_data *data) +{ + struct mt7615_dev *dev = mt7615_hw_dev(hw); + + mt7615_mutex_acquire(dev); + mt76_connac_mcu_update_gtk_rekey(hw, vif, data); + mt7615_mutex_release(dev); +} +#endif /* CONFIG_PM */ + +const struct ieee80211_ops mt7615_ops = { + .tx = mt7615_tx, + .start = mt7615_start, + .stop = mt7615_stop, + .add_interface = mt7615_add_interface, + .remove_interface = mt7615_remove_interface, + .config = mt7615_config, + .conf_tx = mt7615_conf_tx, + .configure_filter = mt7615_configure_filter, + .bss_info_changed = mt7615_bss_info_changed, + .sta_add = mt7615_sta_add, + .sta_remove = mt7615_sta_remove, + .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, + .set_key = mt7615_set_key, + .sta_set_decap_offload = mt7615_sta_set_decap_offload, + .ampdu_action = mt7615_ampdu_action, + .set_rts_threshold = mt7615_set_rts_threshold, + .wake_tx_queue = mt76_wake_tx_queue, + .sta_rate_tbl_update = mt7615_sta_rate_tbl_update, + .sw_scan_start = mt76_sw_scan, + .sw_scan_complete = mt76_sw_scan_complete, + .release_buffered_frames = mt76_release_buffered_frames, + .get_txpower = mt76_get_txpower, + .channel_switch_beacon = mt7615_channel_switch_beacon, + .get_stats = mt7615_get_stats, + .get_tsf = mt7615_get_tsf, + .set_tsf = mt7615_set_tsf, + .offset_tsf = mt7615_offset_tsf, + .get_survey = mt76_get_survey, + .get_antenna = mt76_get_antenna, + .set_antenna = mt7615_set_antenna, + .set_coverage_class = mt7615_set_coverage_class, + .hw_scan = mt7615_hw_scan, + .cancel_hw_scan = mt7615_cancel_hw_scan, + .sched_scan_start = mt7615_start_sched_scan, + .sched_scan_stop = mt7615_stop_sched_scan, + .remain_on_channel = mt7615_remain_on_channel, + .cancel_remain_on_channel = mt7615_cancel_remain_on_channel, + CFG80211_TESTMODE_CMD(mt76_testmode_cmd) + CFG80211_TESTMODE_DUMP(mt76_testmode_dump) +#ifdef CONFIG_PM + .suspend = mt7615_suspend, + .resume = mt7615_resume, + .set_wakeup = mt7615_set_wakeup, + .set_rekey_data = mt7615_set_rekey_data, +#endif /* CONFIG_PM */ + .set_sar_specs = mt7615_set_sar_specs, +}; +EXPORT_SYMBOL_GPL(mt7615_ops); + +MODULE_LICENSE("Dual BSD/GPL"); |