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	.add_chanctx = ieee80211_emulate_add_chanctx,
107	.remove_chanctx = ieee80211_emulate_remove_chanctx,
108	.change_chanctx = ieee80211_emulate_change_chanctx,
109	.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
110	.tx = mt76x02_tx,
111	.start = mt76x2u_start,
112	.stop = mt76x2u_stop,
113	.add_interface = mt76x02_add_interface,
114	.remove_interface = mt76x02_remove_interface,
115	.sta_state = mt76_sta_state,
116	.sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
117	.set_key = mt76x02_set_key,
118	.ampdu_action = mt76x02_ampdu_action,
119	.config = mt76x2u_config,
120	.wake_tx_queue = mt76_wake_tx_queue,
121	.bss_info_changed = mt76x02_bss_info_changed,
122	.configure_filter = mt76x02_configure_filter,
123	.conf_tx = mt76x02_conf_tx,
124	.sw_scan_start = mt76_sw_scan,
125	.sw_scan_complete = mt76x02_sw_scan_complete,
126	.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
127	.get_txpower = mt76_get_txpower,
128	.get_survey = mt76_get_survey,
129	.set_tim = mt76_set_tim,
130	.release_buffered_frames = mt76_release_buffered_frames,
131	.get_antenna = mt76_get_antenna,
132	.set_sar_specs = mt76x2_set_sar_specs,
133};
134