1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> 4 */ 5 6 #include "mt76x2u.h" 7 8 static int mt76x2u_start(struct ieee80211_hw *hw) 9 { 10 struct mt76x02_dev *dev = hw->priv; 11 int ret; 12 13 ret = mt76x2u_mac_start(dev); 14 if (ret) 15 return ret; 16 17 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work, 18 MT_MAC_WORK_INTERVAL); 19 set_bit(MT76_STATE_RUNNING, &dev->mt76.state); 20 21 return 0; 22 } 23 24 static void mt76x2u_stop(struct ieee80211_hw *hw) 25 { 26 struct mt76x02_dev *dev = hw->priv; 27 28 clear_bit(MT76_STATE_RUNNING, &dev->mt76.state); 29 mt76u_stop_tx(&dev->mt76); 30 mt76x2u_stop_hw(dev); 31 } 32 33 static int 34 mt76x2u_set_channel(struct mt76x02_dev *dev, 35 struct cfg80211_chan_def *chandef) 36 { 37 int err; 38 39 cancel_delayed_work_sync(&dev->cal_work); 40 mt76x02_pre_tbtt_enable(dev, false); 41 42 mutex_lock(&dev->mt76.mutex); 43 set_bit(MT76_RESET, &dev->mt76.state); 44 45 mt76_set_channel(&dev->mt76); 46 47 mt76x2_mac_stop(dev, false); 48 49 err = mt76x2u_phy_set_channel(dev, chandef); 50 51 /* channel cycle counters read-and-clear */ 52 mt76_rr(dev, MT_CH_IDLE); 53 mt76_rr(dev, MT_CH_BUSY); 54 55 mt76x2_mac_resume(dev); 56 57 clear_bit(MT76_RESET, &dev->mt76.state); 58 mutex_unlock(&dev->mt76.mutex); 59 60 mt76x02_pre_tbtt_enable(dev, true); 61 mt76_txq_schedule_all(&dev->mt76); 62 63 return err; 64 } 65 66 static int 67 mt76x2u_config(struct ieee80211_hw *hw, u32 changed) 68 { 69 struct mt76x02_dev *dev = hw->priv; 70 int err = 0; 71 72 mutex_lock(&dev->mt76.mutex); 73 74 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 75 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 76 dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC; 77 else 78 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC; 79 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 80 } 81 82 if (changed & IEEE80211_CONF_CHANGE_POWER) { 83 dev->mt76.txpower_conf = hw->conf.power_level * 2; 84 85 /* convert to per-chain power for 2x2 devices */ 86 dev->mt76.txpower_conf -= 6; 87 88 if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) 89 mt76x2_phy_set_txpower(dev); 90 } 91 92 mutex_unlock(&dev->mt76.mutex); 93 94 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 95 ieee80211_stop_queues(hw); 96 err = mt76x2u_set_channel(dev, &hw->conf.chandef); 97 ieee80211_wake_queues(hw); 98 } 99 100 return err; 101 } 102 103 const struct ieee80211_ops mt76x2u_ops = { 104 .tx = mt76x02_tx, 105 .start = mt76x2u_start, 106 .stop = mt76x2u_stop, 107 .add_interface = mt76x02_add_interface, 108 .remove_interface = mt76x02_remove_interface, 109 .sta_state = mt76_sta_state, 110 .set_key = mt76x02_set_key, 111 .ampdu_action = mt76x02_ampdu_action, 112 .config = mt76x2u_config, 113 .wake_tx_queue = mt76_wake_tx_queue, 114 .bss_info_changed = mt76x02_bss_info_changed, 115 .configure_filter = mt76x02_configure_filter, 116 .conf_tx = mt76x02_conf_tx, 117 .sw_scan_start = mt76_sw_scan, 118 .sw_scan_complete = mt76x02_sw_scan_complete, 119 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 120 .get_txpower = mt76_get_txpower, 121 .get_survey = mt76_get_survey, 122 .set_tim = mt76_set_tim, 123 .release_buffered_frames = mt76_release_buffered_frames, 124 }; 125