root/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c

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DEFINITIONS

This source file includes following definitions.
  1. mt76x2_start
  2. mt76x2_stop
  3. mt76x2_set_channel
  4. mt76x2_config
  5. mt76x2_flush
  6. mt76x2_set_antenna
  7. mt76x2_get_antenna

   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 

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