1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name> 4 */ 5 6 #include "mt76x2.h" 7 8 static int 9 mt76x2_start(struct ieee80211_hw *hw) 10 { 11 struct mt76x02_dev *dev = hw->priv; 12 int ret; 13 14 ret = mt76x2_mac_start(dev); 15 if (ret) 16 return ret; 17 18 ret = mt76x2_phy_start(dev); 19 if (ret) 20 return ret; 21 22 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work, 23 MT_MAC_WORK_INTERVAL); 24 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->wdt_work, 25 MT_WATCHDOG_TIME); 26 27 set_bit(MT76_STATE_RUNNING, &dev->mt76.state); 28 return 0; 29 } 30 31 static void 32 mt76x2_stop(struct ieee80211_hw *hw) 33 { 34 struct mt76x02_dev *dev = hw->priv; 35 36 clear_bit(MT76_STATE_RUNNING, &dev->mt76.state); 37 mt76x2_stop_hardware(dev); 38 } 39 40 static int 41 mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef) 42 { 43 int ret; 44 45 cancel_delayed_work_sync(&dev->cal_work); 46 tasklet_disable(&dev->mt76.pre_tbtt_tasklet); 47 tasklet_disable(&dev->dfs_pd.dfs_tasklet); 48 49 mutex_lock(&dev->mt76.mutex); 50 set_bit(MT76_RESET, &dev->mt76.state); 51 52 mt76_set_channel(&dev->mt76); 53 54 mt76x2_mac_stop(dev, true); 55 ret = mt76x2_phy_set_channel(dev, chandef); 56 57 /* channel cycle counters read-and-clear */ 58 mt76_rr(dev, MT_CH_IDLE); 59 mt76_rr(dev, MT_CH_BUSY); 60 61 mt76x02_dfs_init_params(dev); 62 63 mt76x2_mac_resume(dev); 64 65 clear_bit(MT76_RESET, &dev->mt76.state); 66 mutex_unlock(&dev->mt76.mutex); 67 68 tasklet_enable(&dev->dfs_pd.dfs_tasklet); 69 tasklet_enable(&dev->mt76.pre_tbtt_tasklet); 70 71 mt76_txq_schedule_all(&dev->mt76); 72 73 return ret; 74 } 75 76 static int 77 mt76x2_config(struct ieee80211_hw *hw, u32 changed) 78 { 79 struct mt76x02_dev *dev = hw->priv; 80 int ret = 0; 81 82 mutex_lock(&dev->mt76.mutex); 83 84 if (changed & IEEE80211_CONF_CHANGE_MONITOR) { 85 if (!(hw->conf.flags & IEEE80211_CONF_MONITOR)) 86 dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC; 87 else 88 dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC; 89 90 mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter); 91 } 92 93 if (changed & IEEE80211_CONF_CHANGE_POWER) { 94 dev->mt76.txpower_conf = hw->conf.power_level * 2; 95 96 /* convert to per-chain power for 2x2 devices */ 97 dev->mt76.txpower_conf -= 6; 98 99 if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state)) { 100 mt76x2_phy_set_txpower(dev); 101 mt76x02_tx_set_txpwr_auto(dev, dev->mt76.txpower_conf); 102 } 103 } 104 105 mutex_unlock(&dev->mt76.mutex); 106 107 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 108 ieee80211_stop_queues(hw); 109 ret = mt76x2_set_channel(dev, &hw->conf.chandef); 110 ieee80211_wake_queues(hw); 111 } 112 113 return ret; 114 } 115 116 static void 117 mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 118 u32 queues, bool drop) 119 { 120 } 121 122 static int mt76x2_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, 123 u32 rx_ant) 124 { 125 struct mt76x02_dev *dev = hw->priv; 126 127 if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant) 128 return -EINVAL; 129 130 mutex_lock(&dev->mt76.mutex); 131 132 dev->mt76.chainmask = (tx_ant == 3) ? 0x202 : 0x101; 133 dev->mt76.antenna_mask = tx_ant; 134 135 mt76_set_stream_caps(&dev->mt76, true); 136 mt76x2_phy_set_antenna(dev); 137 138 mutex_unlock(&dev->mt76.mutex); 139 140 return 0; 141 } 142 143 static int mt76x2_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, 144 u32 *rx_ant) 145 { 146 struct mt76x02_dev *dev = hw->priv; 147 148 mutex_lock(&dev->mt76.mutex); 149 *tx_ant = dev->mt76.antenna_mask; 150 *rx_ant = dev->mt76.antenna_mask; 151 mutex_unlock(&dev->mt76.mutex); 152 153 return 0; 154 } 155 156 const struct ieee80211_ops mt76x2_ops = { 157 .tx = mt76x02_tx, 158 .start = mt76x2_start, 159 .stop = mt76x2_stop, 160 .add_interface = mt76x02_add_interface, 161 .remove_interface = mt76x02_remove_interface, 162 .config = mt76x2_config, 163 .configure_filter = mt76x02_configure_filter, 164 .bss_info_changed = mt76x02_bss_info_changed, 165 .sta_state = mt76_sta_state, 166 .set_key = mt76x02_set_key, 167 .conf_tx = mt76x02_conf_tx, 168 .sw_scan_start = mt76_sw_scan, 169 .sw_scan_complete = mt76x02_sw_scan_complete, 170 .flush = mt76x2_flush, 171 .ampdu_action = mt76x02_ampdu_action, 172 .get_txpower = mt76_get_txpower, 173 .wake_tx_queue = mt76_wake_tx_queue, 174 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update, 175 .release_buffered_frames = mt76_release_buffered_frames, 176 .set_coverage_class = mt76x02_set_coverage_class, 177 .get_survey = mt76_get_survey, 178 .set_tim = mt76_set_tim, 179 .set_antenna = mt76x2_set_antenna, 180 .get_antenna = mt76x2_get_antenna, 181 .set_rts_threshold = mt76x02_set_rts_threshold, 182 }; 183 184