linux/drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c
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   1// SPDX-License-Identifier: ISC
   2/*
   3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
   4 */
   5
   6#include "mt76x2.h"
   7#include "../mt76x02_mac.h"
   8
   9static int
  10mt76x2_start(struct ieee80211_hw *hw)
  11{
  12        struct mt76x02_dev *dev = hw->priv;
  13
  14        mt76x02_mac_start(dev);
  15        mt76x2_phy_start(dev);
  16
  17        ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work,
  18                                     MT_MAC_WORK_INTERVAL);
  19        ieee80211_queue_delayed_work(mt76_hw(dev), &dev->wdt_work,
  20                                     MT_WATCHDOG_TIME);
  21
  22        set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
  23        return 0;
  24}
  25
  26static void
  27mt76x2_stop(struct ieee80211_hw *hw)
  28{
  29        struct mt76x02_dev *dev = hw->priv;
  30
  31        clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
  32        mt76x2_stop_hardware(dev);
  33}
  34
  35static void
  36mt76x2_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
  37{
  38        cancel_delayed_work_sync(&dev->cal_work);
  39        tasklet_disable(&dev->mt76.pre_tbtt_tasklet);
  40        tasklet_disable(&dev->dfs_pd.dfs_tasklet);
  41
  42        mutex_lock(&dev->mt76.mutex);
  43        set_bit(MT76_RESET, &dev->mphy.state);
  44
  45        mt76_set_channel(&dev->mphy);
  46
  47        mt76x2_mac_stop(dev, true);
  48        mt76x2_phy_set_channel(dev, chandef);
  49
  50        mt76x02_mac_cc_reset(dev);
  51        mt76x02_dfs_init_params(dev);
  52
  53        mt76x2_mac_resume(dev);
  54
  55        clear_bit(MT76_RESET, &dev->mphy.state);
  56        mutex_unlock(&dev->mt76.mutex);
  57
  58        tasklet_enable(&dev->dfs_pd.dfs_tasklet);
  59        tasklet_enable(&dev->mt76.pre_tbtt_tasklet);
  60
  61        mt76_txq_schedule_all(&dev->mphy);
  62}
  63
  64static int
  65mt76x2_config(struct ieee80211_hw *hw, u32 changed)
  66{
  67        struct mt76x02_dev *dev = hw->priv;
  68
  69        mutex_lock(&dev->mt76.mutex);
  70
  71        if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
  72                if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
  73                        dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
  74                else
  75                        dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
  76
  77                mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
  78        }
  79
  80        if (changed & IEEE80211_CONF_CHANGE_POWER) {
  81                dev->txpower_conf = hw->conf.power_level * 2;
  82
  83                /* convert to per-chain power for 2x2 devices */
  84                dev->txpower_conf -= 6;
  85
  86                if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) {
  87                        mt76x2_phy_set_txpower(dev);
  88                        mt76x02_tx_set_txpwr_auto(dev, dev->txpower_conf);
  89                }
  90        }
  91
  92        mutex_unlock(&dev->mt76.mutex);
  93
  94        if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
  95                ieee80211_stop_queues(hw);
  96                mt76x2_set_channel(dev, &hw->conf.chandef);
  97                ieee80211_wake_queues(hw);
  98        }
  99
 100        return 0;
 101}
 102
 103static void
 104mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 105             u32 queues, bool drop)
 106{
 107}
 108
 109static int mt76x2_set_antenna(struct ieee80211_hw *hw, u32 tx_ant,
 110                              u32 rx_ant)
 111{
 112        struct mt76x02_dev *dev = hw->priv;
 113
 114        if (!tx_ant || tx_ant > 3 || tx_ant != rx_ant)
 115                return -EINVAL;
 116
 117        mutex_lock(&dev->mt76.mutex);
 118
 119        dev->chainmask = (tx_ant == 3) ? 0x202 : 0x101;
 120        dev->mphy.antenna_mask = tx_ant;
 121
 122        mt76_set_stream_caps(&dev->mphy, true);
 123        mt76x2_phy_set_antenna(dev);
 124
 125        mutex_unlock(&dev->mt76.mutex);
 126
 127        return 0;
 128}
 129
 130const struct ieee80211_ops mt76x2_ops = {
 131        .tx = mt76x02_tx,
 132        .start = mt76x2_start,
 133        .stop = mt76x2_stop,
 134        .add_interface = mt76x02_add_interface,
 135        .remove_interface = mt76x02_remove_interface,
 136        .config = mt76x2_config,
 137        .configure_filter = mt76x02_configure_filter,
 138        .bss_info_changed = mt76x02_bss_info_changed,
 139        .sta_state = mt76_sta_state,
 140        .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
 141        .set_key = mt76x02_set_key,
 142        .conf_tx = mt76x02_conf_tx,
 143        .sw_scan_start = mt76_sw_scan,
 144        .sw_scan_complete = mt76x02_sw_scan_complete,
 145        .flush = mt76x2_flush,
 146        .ampdu_action = mt76x02_ampdu_action,
 147        .get_txpower = mt76_get_txpower,
 148        .wake_tx_queue = mt76_wake_tx_queue,
 149        .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
 150        .release_buffered_frames = mt76_release_buffered_frames,
 151        .set_coverage_class = mt76x02_set_coverage_class,
 152        .get_survey = mt76_get_survey,
 153        .set_tim = mt76_set_tim,
 154        .set_antenna = mt76x2_set_antenna,
 155        .get_antenna = mt76_get_antenna,
 156        .set_rts_threshold = mt76x02_set_rts_threshold,
 157        .reconfig_complete = mt76x02_reconfig_complete,
 158};
 159
 160