| developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* Copyright (C) 2020 MediaTek Inc. */ |
| 3 | |
| 4 | #include "mt76_connac.h" |
| 5 | |
| 6 | int mt76_connac_pm_wake(struct mt76_phy *phy, struct mt76_connac_pm *pm) |
| 7 | { |
| 8 | struct mt76_dev *dev = phy->dev; |
| 9 | |
| 10 | if (mt76_is_usb(dev)) |
| 11 | return 0; |
| 12 | |
| 13 | cancel_delayed_work_sync(&pm->ps_work); |
| 14 | if (!test_bit(MT76_STATE_PM, &phy->state)) |
| 15 | return 0; |
| 16 | |
| 17 | if (pm->suspended) |
| 18 | return 0; |
| 19 | |
| 20 | queue_work(dev->wq, &pm->wake_work); |
| 21 | if (!wait_event_timeout(pm->wait, |
| 22 | !test_bit(MT76_STATE_PM, &phy->state), |
| 23 | 3 * HZ)) { |
| 24 | ieee80211_wake_queues(phy->hw); |
| 25 | return -ETIMEDOUT; |
| 26 | } |
| 27 | |
| 28 | return 0; |
| 29 | } |
| 30 | EXPORT_SYMBOL_GPL(mt76_connac_pm_wake); |
| 31 | |
| 32 | void mt76_connac_power_save_sched(struct mt76_phy *phy, |
| 33 | struct mt76_connac_pm *pm) |
| 34 | { |
| 35 | struct mt76_dev *dev = phy->dev; |
| 36 | |
| 37 | if (mt76_is_usb(dev)) |
| 38 | return; |
| 39 | |
| 40 | if (!pm->enable) |
| 41 | return; |
| 42 | |
| 43 | if (pm->suspended) |
| 44 | return; |
| 45 | |
| 46 | pm->last_activity = jiffies; |
| 47 | |
| 48 | if (!test_bit(MT76_STATE_PM, &phy->state)) { |
| 49 | cancel_delayed_work(&phy->mac_work); |
| 50 | queue_delayed_work(dev->wq, &pm->ps_work, pm->idle_timeout); |
| 51 | } |
| 52 | } |
| 53 | EXPORT_SYMBOL_GPL(mt76_connac_power_save_sched); |
| 54 | |
| 55 | void mt76_connac_free_pending_tx_skbs(struct mt76_connac_pm *pm, |
| 56 | struct mt76_wcid *wcid) |
| 57 | { |
| 58 | int i; |
| 59 | |
| 60 | spin_lock_bh(&pm->txq_lock); |
| 61 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
| 62 | if (wcid && pm->tx_q[i].wcid != wcid) |
| 63 | continue; |
| 64 | |
| 65 | dev_kfree_skb(pm->tx_q[i].skb); |
| 66 | pm->tx_q[i].skb = NULL; |
| 67 | } |
| 68 | spin_unlock_bh(&pm->txq_lock); |
| 69 | } |
| 70 | EXPORT_SYMBOL_GPL(mt76_connac_free_pending_tx_skbs); |
| 71 | |
| 72 | void mt76_connac_pm_queue_skb(struct ieee80211_hw *hw, |
| 73 | struct mt76_connac_pm *pm, |
| 74 | struct mt76_wcid *wcid, |
| 75 | struct sk_buff *skb) |
| 76 | { |
| 77 | int qid = skb_get_queue_mapping(skb); |
| 78 | struct mt76_phy *phy = hw->priv; |
| 79 | |
| 80 | spin_lock_bh(&pm->txq_lock); |
| 81 | if (!pm->tx_q[qid].skb) { |
| 82 | ieee80211_stop_queues(hw); |
| 83 | pm->tx_q[qid].wcid = wcid; |
| 84 | pm->tx_q[qid].skb = skb; |
| 85 | queue_work(phy->dev->wq, &pm->wake_work); |
| 86 | } else { |
| 87 | dev_kfree_skb(skb); |
| 88 | } |
| 89 | spin_unlock_bh(&pm->txq_lock); |
| 90 | } |
| 91 | EXPORT_SYMBOL_GPL(mt76_connac_pm_queue_skb); |
| 92 | |
| 93 | void mt76_connac_pm_dequeue_skbs(struct mt76_phy *phy, |
| 94 | struct mt76_connac_pm *pm) |
| 95 | { |
| 96 | int i; |
| 97 | |
| 98 | spin_lock_bh(&pm->txq_lock); |
| 99 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
| 100 | struct mt76_wcid *wcid = pm->tx_q[i].wcid; |
| 101 | struct ieee80211_sta *sta = NULL; |
| 102 | |
| 103 | if (!pm->tx_q[i].skb) |
| 104 | continue; |
| 105 | |
| 106 | if (wcid && wcid->sta) |
| 107 | sta = container_of((void *)wcid, struct ieee80211_sta, |
| 108 | drv_priv); |
| 109 | |
| 110 | mt76_tx(phy, sta, wcid, pm->tx_q[i].skb); |
| 111 | pm->tx_q[i].skb = NULL; |
| 112 | } |
| 113 | spin_unlock_bh(&pm->txq_lock); |
| 114 | |
| 115 | mt76_worker_schedule(&phy->dev->tx_worker); |
| 116 | } |
| 117 | EXPORT_SYMBOL_GPL(mt76_connac_pm_dequeue_skbs); |