/*
* Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
* Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
* Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "mt76x0.h"
#include "mac.h"
#include "../mt76x02_util.h"
#include <linux/etherdevice.h>
int mt76x0_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt76x0_dev *dev = hw->priv;
int ret = 0;
mutex_lock(&dev->mt76.mutex);
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
ieee80211_stop_queues(hw);
ret = mt76x0_phy_set_channel(dev, &hw->conf.chandef);
ieee80211_wake_queues(hw);
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
dev->mt76.txpower_conf = hw->conf.power_level * 2;
if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
mt76x0_phy_set_txpower(dev);
}
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
else
dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
}
mutex_unlock(&dev->mt76.mutex);
return ret;
}
EXPORT_SYMBOL_GPL(mt76x0_config);
static void
mt76x0_addr_wr(struct mt76x0_dev *dev, const u32 offset, const u8 *addr)
{
mt76_wr(dev, offset, get_unaligned_le32(addr));
mt76_wr(dev, offset + 4, addr[4] | addr[5] << 8);
}
void mt76x0_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info, u32 changed)
{
struct mt76x0_dev *dev = hw->priv;
mutex_lock(&dev->mt76.mutex);
if (changed & BSS_CHANGED_BSSID) {
mt76x0_addr_wr(dev, MT_MAC_BSSID_DW0, info->bssid);
/* Note: this is a hack because beacon_int is not changed
* on leave nor is any more appropriate event generated.
* rt2x00 doesn't seem to be bothered though.
*/
if (is_zero_ether_addr(info->bssid))
mt76x0_mac_config_tsf(dev, false, 0);
}
if (changed & BSS_CHANGED_BASIC_RATES) {
mt76_wr(dev, MT_LEGACY_BASIC_RATE, info->basic_rates);
mt76_wr(dev, MT_VHT_HT_FBK_CFG0, 0x65432100);
mt76_wr(dev, MT_VHT_HT_FBK_CFG1, 0xedcba980);
mt76_wr(dev, MT_LG_FBK_CFG0, 0xedcba988);
mt76_wr(dev, MT_LG_FBK_CFG1, 0x00002100);
}
if (changed & BSS_CHANGED_BEACON_INT)
mt76x0_mac_config_tsf(dev, true, info->beacon_int);
if (changed & BSS_CHANGED_HT || changed & BSS_CHANGED_ERP_CTS_PROT)
mt76x0_mac_set_protection(dev, info->use_cts_prot,
info->ht_operation_mode);
if (changed & BSS_CHANGED_ERP_PREAMBLE)
mt76x0_mac_set_short_preamble(dev, info->use_short_preamble);
if (changed & BSS_CHANGED_ERP_SLOT) {
int slottime = info->use_short_slot ? 9 : 20;
mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG,
MT_BKOFF_SLOT_CFG_SLOTTIME, slottime);
}
if (changed & BSS_CHANGED_ASSOC)
mt76x0_phy_recalibrate_after_assoc(dev);
mutex_unlock(&dev->mt76.mutex);
}
EXPORT_SYMBOL_GPL(mt76x0_bss_info_changed);
void mt76x0_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const u8 *mac_addr)
{
struct mt76x0_dev *dev = hw->priv;
cancel_delayed_work_sync(&dev->cal_work);
mt76x0_agc_save(dev);
set_bit(MT76_SCANNING, &dev->mt76.state);
}
EXPORT_SYMBOL_GPL(mt76x0_sw_scan);
void mt76x0_sw_scan_complete(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt76x0_dev *dev = hw->priv;
mt76x0_agc_restore(dev);
clear_bit(MT76_SCANNING, &dev->mt76.state);
ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work,
MT_CALIBRATE_INTERVAL);
}
EXPORT_SYMBOL_GPL(mt76x0_sw_scan_complete);
int mt76x0_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
struct mt76x0_dev *dev = hw->priv;
mt76_rmw_field(dev, MT_TX_RTS_CFG, MT_TX_RTS_CFG_THRESH, value);
return 0;
}
EXPORT_SYMBOL_GPL(mt76x0_set_rts_threshold);
