cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

main.c (2426B)

      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->mt76))
     17		tasklet_disable(&dev->dfs_pd.dfs_tasklet);
     18
     19	mt76_set_channel(&dev->mphy);
     20	mt76x0_phy_set_channel(dev, chandef);
     21
     22	mt76x02_mac_cc_reset(dev);
     23	mt76x02_edcca_init(dev);
     24
     25	if (mt76_is_mmio(&dev->mt76)) {
     26		mt76x02_dfs_init_params(dev);
     27		tasklet_enable(&dev->dfs_pd.dfs_tasklet);
     28	}
     29	mt76x02_pre_tbtt_enable(dev, true);
     30
     31	mt76_txq_schedule_all(&dev->mphy);
     32}
     33
     34int mt76x0_set_sar_specs(struct ieee80211_hw *hw,
     35			 const struct cfg80211_sar_specs *sar)
     36{
     37	int err = -EINVAL, power = hw->conf.power_level * 2;
     38	struct mt76x02_dev *dev = hw->priv;
     39	struct mt76_phy *mphy = &dev->mphy;
     40
     41	mutex_lock(&dev->mt76.mutex);
     42	if (!cfg80211_chandef_valid(&mphy->chandef))
     43		goto out;
     44
     45	err = mt76_init_sar_power(hw, sar);
     46	if (err)
     47		goto out;
     48
     49	dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan,
     50					       power);
     51	if (test_bit(MT76_STATE_RUNNING, &mphy->state))
     52		mt76x0_phy_set_txpower(dev);
     53out:
     54	mutex_unlock(&dev->mt76.mutex);
     55
     56	return err;
     57}
     58EXPORT_SYMBOL_GPL(mt76x0_set_sar_specs);
     59
     60int mt76x0_config(struct ieee80211_hw *hw, u32 changed)
     61{
     62	struct mt76x02_dev *dev = hw->priv;
     63
     64	mutex_lock(&dev->mt76.mutex);
     65
     66	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
     67		ieee80211_stop_queues(hw);
     68		mt76x0_set_channel(dev, &hw->conf.chandef);
     69		ieee80211_wake_queues(hw);
     70	}
     71
     72	if (changed & IEEE80211_CONF_CHANGE_POWER) {
     73		struct mt76_phy *mphy = &dev->mphy;
     74
     75		dev->txpower_conf = hw->conf.power_level * 2;
     76		dev->txpower_conf = mt76_get_sar_power(mphy,
     77						       mphy->chandef.chan,
     78						       dev->txpower_conf);
     79		if (test_bit(MT76_STATE_RUNNING, &mphy->state))
     80			mt76x0_phy_set_txpower(dev);
     81	}
     82
     83	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
     84		if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
     85			dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
     86		else
     87			dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
     88
     89		mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
     90	}
     91
     92	mutex_unlock(&dev->mt76.mutex);
     93
     94	return 0;
     95}
     96EXPORT_SYMBOL_GPL(mt76x0_config);