LXR linux/drivers/net/wireless/mediatek/mt76/mt76x0/main.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
   4 * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
   5 * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
   6 */
   7
   8#include <linux/etherdevice.h>
   9#include "mt76x0.h"
  10
  11static void
  12mt76x0_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
  13{
  14        cancel_delayed_work_sync(&dev->cal_work);
  15        mt76x02_pre_tbtt_enable(dev, false);
  16        if (mt76_is_mmio(dev))
  17                tasklet_disable(&dev->dfs_pd.dfs_tasklet);
  18
  19        mt76_set_channel(&dev->mt76);
  20        mt76x0_phy_set_channel(dev, chandef);
  21
  22        /* channel cycle counters read-and-clear */
  23        mt76_rr(dev, MT_CH_IDLE);
  24        mt76_rr(dev, MT_CH_BUSY);
  25
  26        mt76x02_edcca_init(dev);
  27
  28        if (mt76_is_mmio(dev)) {
  29                mt76x02_dfs_init_params(dev);
  30                tasklet_enable(&dev->dfs_pd.dfs_tasklet);
  31        }
  32        mt76x02_pre_tbtt_enable(dev, true);
  33
  34        mt76_txq_schedule_all(&dev->mt76);
  35}
  36
  37int mt76x0_config(struct ieee80211_hw *hw, u32 changed)
  38{
  39        struct mt76x02_dev *dev = hw->priv;
  40
  41        mutex_lock(&dev->mt76.mutex);
  42
  43        if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
  44                ieee80211_stop_queues(hw);
  45                mt76x0_set_channel(dev, &hw->conf.chandef);
  46                ieee80211_wake_queues(hw);
  47        }
  48
  49        if (changed & IEEE80211_CONF_CHANGE_POWER) {
  50                dev->mt76.txpower_conf = hw->conf.power_level * 2;
  51
  52                if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
  53                        mt76x0_phy_set_txpower(dev);
  54        }
  55
  56        if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
  57                if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
  58                        dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
  59                else
  60                        dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
  61
  62                mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
  63        }
  64
  65        mutex_unlock(&dev->mt76.mutex);
  66
  67        return 0;
  68}
  69EXPORT_SYMBOL_GPL(mt76x0_config);
  70