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/*
* Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "mt76x2u.h"
static int mt76x2u_start(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
int ret;
mutex_lock(&dev->mt76.mutex);
ret = mt76x2u_mac_start(dev);
if (ret)
goto out;
ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mac_work,
MT_CALIBRATE_INTERVAL);
set_bit(MT76_STATE_RUNNING, &dev->mt76.state);
out:
mutex_unlock(&dev->mt76.mutex);
return ret;
}
static void mt76x2u_stop(struct ieee80211_hw *hw)
{
struct mt76x02_dev *dev = hw->priv;
mutex_lock(&dev->mt76.mutex);
clear_bit(MT76_STATE_RUNNING, &dev->mt76.state);
mt76x2u_stop_hw(dev);
mutex_unlock(&dev->mt76.mutex);
}
static int mt76x2u_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt76x02_dev *dev = hw->priv;
if (!ether_addr_equal(dev->mt76.macaddr, vif->addr))
mt76x02_mac_setaddr(dev, vif->addr);
mt76x02_vif_init(dev, vif, 0);
return 0;
}
static int
mt76x2u_set_channel(struct mt76x02_dev *dev,
struct cfg80211_chan_def *chandef)
{
int err;
cancel_delayed_work_sync(&dev->cal_work);
set_bit(MT76_RESET, &dev->mt76.state);
mt76_set_channel(&dev->mt76);
mt76_clear(dev, MT_TXOP_CTRL_CFG, BIT(20));
mt76_clear(dev, MT_TXOP_HLDR_ET, BIT(1));
mt76x2_mac_stop(dev, false);
err = mt76x2u_phy_set_channel(dev, chandef);
mt76x2u_mac_resume(dev);
clear_bit(MT76_RESET, &dev->mt76.state);
mt76_txq_schedule_all(&dev->mt76);
return err;
}
static void
mt76x2u_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info, u32 changed)
{
struct mt76x02_dev *dev = hw->priv;
mutex_lock(&dev->mt76.mutex);
if (changed & BSS_CHANGED_ASSOC) {
mt76x2u_phy_channel_calibrate(dev);
mt76x2_apply_gain_adj(dev);
}
if (changed & BSS_CHANGED_BSSID) {
mt76_wr(dev, MT_MAC_BSSID_DW0,
get_unaligned_le32(info->bssid));
mt76_wr(dev, MT_MAC_BSSID_DW1,
get_unaligned_le16(info->bssid + 4));
}
mutex_unlock(&dev->mt76.mutex);
}
static int
mt76x2u_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt76x02_dev *dev = hw->priv;
int err = 0;
mutex_lock(&dev->mt76.mutex);
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);
}
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
ieee80211_stop_queues(hw);
err = mt76x2u_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;
/* convert to per-chain power for 2x2 devices */
dev->mt76.txpower_conf -= 6;
if (test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
mt76x2_phy_set_txpower(dev);
}
mutex_unlock(&dev->mt76.mutex);
return err;
}
static void
mt76x2u_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const u8 *mac)
{
struct mt76x02_dev *dev = hw->priv;
set_bit(MT76_SCANNING, &dev->mt76.state);
}
static void
mt76x2u_sw_scan_complete(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
struct mt76x02_dev *dev = hw->priv;
clear_bit(MT76_SCANNING, &dev->mt76.state);
}
const struct ieee80211_ops mt76x2u_ops = {
.tx = mt76x02_tx,
.start = mt76x2u_start,
.stop = mt76x2u_stop,
.add_interface = mt76x2u_add_interface,
.remove_interface = mt76x02_remove_interface,
.sta_add = mt76x02_sta_add,
.sta_remove = mt76x02_sta_remove,
.set_key = mt76x02_set_key,
.ampdu_action = mt76x02_ampdu_action,
.config = mt76x2u_config,
.wake_tx_queue = mt76_wake_tx_queue,
.bss_info_changed = mt76x2u_bss_info_changed,
.configure_filter = mt76x02_configure_filter,
.conf_tx = mt76x02_conf_tx,
.sw_scan_start = mt76x2u_sw_scan,
.sw_scan_complete = mt76x2u_sw_scan_complete,
.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
};
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