1// SPDX-License-Identifier: ISC
  2/*
  3 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
  4 */
  5
  6#include "mt76x2u.h"
  7#include "../mt76x02_usb.h"
  8
  9static int mt76x2u_start(struct ieee80211_hw *hw)
 10{
 11	struct mt76x02_dev *dev = hw->priv;
 12	int ret;
 13
 14	ret = mt76x02u_mac_start(dev);
 15	if (ret)
 16		return ret;
 17
 18	ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
 19				     MT_MAC_WORK_INTERVAL);
 20	set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
 21
 22	return 0;
 23}
 24
 25static void mt76x2u_stop(struct ieee80211_hw *hw)
 26{
 27	struct mt76x02_dev *dev = hw->priv;
 28
 29	clear_bit(MT76_STATE_RUNNING, &dev->mphy.state);
 30	mt76u_stop_tx(&dev->mt76);
 31	mt76x2u_stop_hw(dev);
 32}
 33
 34static int
 35mt76x2u_set_channel(struct mt76x02_dev *dev,
 36		    struct cfg80211_chan_def *chandef)
 37{
 38	int err;
 39
 40	cancel_delayed_work_sync(&dev->cal_work);
 41	mt76x02_pre_tbtt_enable(dev, false);
 42
 43	mutex_lock(&dev->mt76.mutex);
 44	set_bit(MT76_RESET, &dev->mphy.state);
 45
 46	mt76_set_channel(&dev->mphy);
 47
 48	mt76x2_mac_stop(dev, false);
 49
 50	err = mt76x2u_phy_set_channel(dev, chandef);
 51
 52	mt76x02_mac_cc_reset(dev);
 53	mt76x2_mac_resume(dev);
 54
 55	clear_bit(MT76_RESET, &dev->mphy.state);
 56	mutex_unlock(&dev->mt76.mutex);
 57
 58	mt76x02_pre_tbtt_enable(dev, true);
 59	mt76_txq_schedule_all(&dev->mphy);
 60
 61	return err;
 62}
 63
 64static int
 65mt76x2u_config(struct ieee80211_hw *hw, u32 changed)
 66{
 67	struct mt76x02_dev *dev = hw->priv;
 68	int err = 0;
 69
 70	mutex_lock(&dev->mt76.mutex);
 71
 72	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
 73		if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
 74			dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
 75		else
 76			dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
 77		mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
 78	}
 79
 80	if (changed & IEEE80211_CONF_CHANGE_POWER) {
 81		struct mt76_phy *mphy = &dev->mphy;
 82
 83		dev->txpower_conf = hw->conf.power_level * 2;
 84		dev->txpower_conf = mt76_get_sar_power(mphy,
 85						       mphy->chandef.chan,
 86						       dev->txpower_conf);
 87		/* convert to per-chain power for 2x2 devices */
 88		dev->txpower_conf -= 6;
 89
 90		if (test_bit(MT76_STATE_RUNNING, &mphy->state))
 91			mt76x2_phy_set_txpower(dev);
 92	}
 93
 94	mutex_unlock(&dev->mt76.mutex);
 95
 96	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
 97		ieee80211_stop_queues(hw);
 98		err = mt76x2u_set_channel(dev, &hw->conf.chandef);
 99		ieee80211_wake_queues(hw);
100	}
101
102	return err;
103}
104
105const struct ieee80211_ops mt76x2u_ops = {
106	.tx = mt76x02_tx,
107	.start = mt76x2u_start,
108	.stop = mt76x2u_stop,
109	.add_interface = mt76x02_add_interface,
110	.remove_interface = mt76x02_remove_interface,
111	.sta_state = mt76_sta_state,
112	.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
113	.set_key = mt76x02_set_key,
114	.ampdu_action = mt76x02_ampdu_action,
115	.config = mt76x2u_config,
116	.wake_tx_queue = mt76_wake_tx_queue,
117	.bss_info_changed = mt76x02_bss_info_changed,
118	.configure_filter = mt76x02_configure_filter,
119	.conf_tx = mt76x02_conf_tx,
120	.sw_scan_start = mt76_sw_scan,
121	.sw_scan_complete = mt76x02_sw_scan_complete,
122	.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
123	.get_txpower = mt76_get_txpower,
124	.get_survey = mt76_get_survey,
125	.set_tim = mt76_set_tim,
126	.release_buffered_frames = mt76_release_buffered_frames,
127	.get_antenna = mt76_get_antenna,
128	.set_sar_specs = mt76x2_set_sar_specs,
129};