1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> 4 */ 5 6 #include "mt76x2u.h" 7 #include "../mt76x02_usb.h" 8 9 static int mt76x2u_start(struct ieee80211_hw *hw) 10 { 11 struct mt76x02_dev *dev = hw->priv; 12 int ret; 13 14 ret = mt76x02u_mac_start(dev); 15 if (ret) 16 return ret; 17 18 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work, 19 MT_MAC_WORK_INTERVAL); 20 set_bit(MT76_STATE_RUNNING, &dev->mphy.state); 21 22 return 0; 23 } 24 25 static void mt76x2u_stop(struct ieee80211_hw *hw) 26 { 27 struct mt76x02_dev *dev = hw->priv; 28 29 clear_bit(MT76_STATE_RUNNING, &dev->mphy.state); 30 mt76u_stop_tx(&dev->mt76); 31 mt76x2u_stop_hw(dev); 32 } 33 34 static int 35 mt76x2u_set_channel(struct mt76x02_dev *dev, 36 struct cfg80211_chan_def *chandef) 37 { 38 int err; 39 40 cancel_delayed_work_sync(&dev->cal_work); 41 mt76x02_pre_tbtt_enable(dev, false); 42 43 mutex_lock(&dev->mt76.mutex); 44 set_bit(MT76_RESET, &dev->mphy.state); 45 46 mt76_set_channel(&dev->mphy); 47 48 mt76x2_mac_stop(dev, false); 49 50 err = mt76x2u_phy_set_channel(dev, chandef); 51 52 mt76x02_mac_cc_reset(dev); 53 mt76x2_mac_resume(dev); 54 55 clear_bit(MT76_RESET, &dev->mphy.state); 56 mutex_unlock(&dev->mt76.mutex); 57 58 mt76x02_pre_tbtt_enable(dev, true); 59 mt76_txq_schedule_all(&dev->mphy); 60 61 return err; 62 } 63 64 static int 65 mt76x2u_config(struct ieee80211_hw *hw, u32 changed) 66 { 67 struct mt76x02_dev *dev = hw->priv; 68 int err = 0; 69 70 mutex_lock(&dev->mt76.mutex); 71 72 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 73 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 74 dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC; 75 else 76 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC; 77 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 78 } 79 80 if (changed & IEEE80211_CONF_CHANGE_POWER) { 81 struct mt76_phy *mphy = &dev->mphy; 82 83 dev->txpower_conf = hw->conf.power_level * 2; 84 dev->txpower_conf = mt76_get_sar_power(mphy, 85 mphy->chandef.chan, 86 dev->txpower_conf); 87 /* convert to per-chain power for 2x2 devices */ 88 dev->txpower_conf -= 6; 89 90 if (test_bit(MT76_STATE_RUNNING, &mphy->state)) 91 mt76x2_phy_set_txpower(dev); 92 } 93 94 mutex_unlock(&dev->mt76.mutex); 95 96 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 97 ieee80211_stop_queues(hw); 98 err = mt76x2u_set_channel(dev, &hw->conf.chandef); 99 ieee80211_wake_queues(hw); 100 } 101 102 return err; 103 } 104 105 const struct ieee80211_ops mt76x2u_ops = { 106 .tx = mt76x02_tx, 107 .start = mt76x2u_start, 108 .stop = mt76x2u_stop, 109 .add_interface = mt76x02_add_interface, 110 .remove_interface = mt76x02_remove_interface, 111 .sta_state = mt76_sta_state, 112 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove, 113 .set_key = mt76x02_set_key, 114 .ampdu_action = mt76x02_ampdu_action, 115 .config = mt76x2u_config, 116 .wake_tx_queue = mt76_wake_tx_queue, 117 .bss_info_changed = mt76x02_bss_info_changed, 118 .configure_filter = mt76x02_configure_filter, 119 .conf_tx = mt76x02_conf_tx, 120 .sw_scan_start = mt76_sw_scan, 121 .sw_scan_complete = mt76x02_sw_scan_complete, 122 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 123 .get_txpower = mt76_get_txpower, 124 .get_survey = mt76_get_survey, 125 .set_tim = mt76_set_tim, 126 .release_buffered_frames = mt76_release_buffered_frames, 127 .get_antenna = mt76_get_antenna, 128 .set_sar_specs = mt76x2_set_sar_specs, 129 }; 130