1 /* 2 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "mt76x2u.h" 18 19 static int mt76x2u_start(struct ieee80211_hw *hw) 20 { 21 struct mt76x02_dev *dev = hw->priv; 22 int ret; 23 24 ret = mt76x2u_mac_start(dev); 25 if (ret) 26 return ret; 27 28 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work, 29 MT_MAC_WORK_INTERVAL); 30 set_bit(MT76_STATE_RUNNING, &dev->mt76.state); 31 32 return 0; 33 } 34 35 static void mt76x2u_stop(struct ieee80211_hw *hw) 36 { 37 struct mt76x02_dev *dev = hw->priv; 38 39 clear_bit(MT76_STATE_RUNNING, &dev->mt76.state); 40 mt76u_stop_tx(&dev->mt76); 41 mt76x2u_stop_hw(dev); 42 } 43 44 static int 45 mt76x2u_set_channel(struct mt76x02_dev *dev, 46 struct cfg80211_chan_def *chandef) 47 { 48 int err; 49 50 cancel_delayed_work_sync(&dev->cal_work); 51 set_bit(MT76_RESET, &dev->mt76.state); 52 53 mt76_set_channel(&dev->mt76); 54 55 dev->beacon_ops->pre_tbtt_enable(dev, false); 56 57 mt76x2_mac_stop(dev, false); 58 59 err = mt76x2u_phy_set_channel(dev, chandef); 60 61 mt76x2_mac_resume(dev); 62 mt76x02_edcca_init(dev, true); 63 64 dev->beacon_ops->pre_tbtt_enable(dev, true); 65 66 clear_bit(MT76_RESET, &dev->mt76.state); 67 mt76_txq_schedule_all(&dev->mt76); 68 69 return err; 70 } 71 72 static int 73 mt76x2u_config(struct ieee80211_hw *hw, u32 changed) 74 { 75 struct mt76x02_dev *dev = hw->priv; 76 int err = 0; 77 78 mutex_lock(&dev->mt76.mutex); 79 80 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 81 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 82 dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC; 83 else 84 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC; 85 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 86 } 87 88 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 89 ieee80211_stop_queues(hw); 90 err = mt76x2u_set_channel(dev, &hw->conf.chandef); 91 ieee80211_wake_queues(hw); 92 } 93 94 if (changed & IEEE80211_CONF_CHANGE_POWER) { 95 dev->mt76.txpower_conf = hw->conf.power_level * 2; 96 97 /* convert to per-chain power for 2x2 devices */ 98 dev->mt76.txpower_conf -= 6; 99 100 if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) 101 mt76x2_phy_set_txpower(dev); 102 } 103 104 mutex_unlock(&dev->mt76.mutex); 105 106 return err; 107 } 108 109 const struct ieee80211_ops mt76x2u_ops = { 110 .tx = mt76x02_tx, 111 .start = mt76x2u_start, 112 .stop = mt76x2u_stop, 113 .add_interface = mt76x02_add_interface, 114 .remove_interface = mt76x02_remove_interface, 115 .sta_state = mt76_sta_state, 116 .set_key = mt76x02_set_key, 117 .ampdu_action = mt76x02_ampdu_action, 118 .config = mt76x2u_config, 119 .wake_tx_queue = mt76_wake_tx_queue, 120 .bss_info_changed = mt76x02_bss_info_changed, 121 .configure_filter = mt76x02_configure_filter, 122 .conf_tx = mt76x02_conf_tx, 123 .sw_scan_start = mt76x02_sw_scan, 124 .sw_scan_complete = mt76x02_sw_scan_complete, 125 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 126 .get_txpower = mt76_get_txpower, 127 .set_tim = mt76_set_tim, 128 .release_buffered_frames = mt76_release_buffered_frames, 129 }; 130