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 mutex_lock(&dev->mt76.mutex); 25 26 ret = mt76x2u_mac_start(dev); 27 if (ret) 28 goto out; 29 30 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mac_work, 31 MT_MAC_WORK_INTERVAL); 32 set_bit(MT76_STATE_RUNNING, &dev->mt76.state); 33 34 out: 35 mutex_unlock(&dev->mt76.mutex); 36 return ret; 37 } 38 39 static void mt76x2u_stop(struct ieee80211_hw *hw) 40 { 41 struct mt76x02_dev *dev = hw->priv; 42 43 mutex_lock(&dev->mt76.mutex); 44 clear_bit(MT76_STATE_RUNNING, &dev->mt76.state); 45 mt76x2u_stop_hw(dev); 46 mutex_unlock(&dev->mt76.mutex); 47 } 48 49 static int 50 mt76x2u_set_channel(struct mt76x02_dev *dev, 51 struct cfg80211_chan_def *chandef) 52 { 53 int err; 54 55 cancel_delayed_work_sync(&dev->cal_work); 56 set_bit(MT76_RESET, &dev->mt76.state); 57 58 mt76_set_channel(&dev->mt76); 59 60 mt76x2_mac_stop(dev, false); 61 62 err = mt76x2u_phy_set_channel(dev, chandef); 63 64 mt76x2_mac_resume(dev); 65 mt76x02_edcca_init(dev, true); 66 67 clear_bit(MT76_RESET, &dev->mt76.state); 68 mt76_txq_schedule_all(&dev->mt76); 69 70 return err; 71 } 72 73 static int 74 mt76x2u_config(struct ieee80211_hw *hw, u32 changed) 75 { 76 struct mt76x02_dev *dev = hw->priv; 77 int err = 0; 78 79 mutex_lock(&dev->mt76.mutex); 80 81 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 82 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 83 dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC; 84 else 85 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC; 86 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 87 } 88 89 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 90 ieee80211_stop_queues(hw); 91 err = mt76x2u_set_channel(dev, &hw->conf.chandef); 92 ieee80211_wake_queues(hw); 93 } 94 95 if (changed & IEEE80211_CONF_CHANGE_POWER) { 96 dev->mt76.txpower_conf = hw->conf.power_level * 2; 97 98 /* convert to per-chain power for 2x2 devices */ 99 dev->mt76.txpower_conf -= 6; 100 101 if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) 102 mt76x2_phy_set_txpower(dev); 103 } 104 105 mutex_unlock(&dev->mt76.mutex); 106 107 return err; 108 } 109 110 const struct ieee80211_ops mt76x2u_ops = { 111 .tx = mt76x02_tx, 112 .start = mt76x2u_start, 113 .stop = mt76x2u_stop, 114 .add_interface = mt76x02_add_interface, 115 .remove_interface = mt76x02_remove_interface, 116 .sta_state = mt76_sta_state, 117 .set_key = mt76x02_set_key, 118 .ampdu_action = mt76x02_ampdu_action, 119 .config = mt76x2u_config, 120 .wake_tx_queue = mt76_wake_tx_queue, 121 .bss_info_changed = mt76x02_bss_info_changed, 122 .configure_filter = mt76x02_configure_filter, 123 .conf_tx = mt76x02_conf_tx, 124 .sw_scan_start = mt76x02_sw_scan, 125 .sw_scan_complete = mt76x02_sw_scan_complete, 126 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 127 .get_txpower = mt76_get_txpower, 128 }; 129