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
mt76x2u_start(struct ieee80211_hw * hw)9 static 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->mt76.mac_work,
19 MT_MAC_WORK_INTERVAL);
20 set_bit(MT76_STATE_RUNNING, &dev->mphy.state);
21
22 return 0;
23 }
24
mt76x2u_stop(struct ieee80211_hw * hw)25 static 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
34 static int
mt76x2u_set_channel(struct mt76x02_dev * dev,struct cfg80211_chan_def * chandef)35 mt76x2u_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
64 static int
mt76x2u_config(struct ieee80211_hw * hw,u32 changed)65 mt76x2u_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 dev->txpower_conf = hw->conf.power_level * 2;
82
83 /* convert to per-chain power for 2x2 devices */
84 dev->txpower_conf -= 6;
85
86 if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state))
87 mt76x2_phy_set_txpower(dev);
88 }
89
90 mutex_unlock(&dev->mt76.mutex);
91
92 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
93 ieee80211_stop_queues(hw);
94 err = mt76x2u_set_channel(dev, &hw->conf.chandef);
95 ieee80211_wake_queues(hw);
96 }
97
98 return err;
99 }
100
101 const struct ieee80211_ops mt76x2u_ops = {
102 .tx = mt76x02_tx,
103 .start = mt76x2u_start,
104 .stop = mt76x2u_stop,
105 .add_interface = mt76x02_add_interface,
106 .remove_interface = mt76x02_remove_interface,
107 .sta_state = mt76_sta_state,
108 .sta_pre_rcu_remove = mt76_sta_pre_rcu_remove,
109 .set_key = mt76x02_set_key,
110 .ampdu_action = mt76x02_ampdu_action,
111 .config = mt76x2u_config,
112 .wake_tx_queue = mt76_wake_tx_queue,
113 .bss_info_changed = mt76x02_bss_info_changed,
114 .configure_filter = mt76x02_configure_filter,
115 .conf_tx = mt76x02_conf_tx,
116 .sw_scan_start = mt76_sw_scan,
117 .sw_scan_complete = mt76x02_sw_scan_complete,
118 .sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
119 .get_txpower = mt76_get_txpower,
120 .get_survey = mt76_get_survey,
121 .set_tim = mt76_set_tim,
122 .release_buffered_frames = mt76_release_buffered_frames,
123 .get_antenna = mt76_get_antenna,
124 };
125