1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
4  * Copyright (C) 2015 Jakub Kicinski <kubakici@wp.pl>
5  * Copyright (C) 2018 Stanislaw Gruszka <stf_xl@wp.pl>
6  */
7 
8 #include <linux/etherdevice.h>
9 #include "mt76x0.h"
10 
11 static void
mt76x0_set_channel(struct mt76x02_dev * dev,struct cfg80211_chan_def * chandef)12 mt76x0_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef)
13 {
14 	cancel_delayed_work_sync(&dev->cal_work);
15 	mt76x02_pre_tbtt_enable(dev, false);
16 	if (mt76_is_mmio(&dev->mt76))
17 		tasklet_disable(&dev->dfs_pd.dfs_tasklet);
18 
19 	mt76_set_channel(&dev->mphy);
20 	mt76x0_phy_set_channel(dev, chandef);
21 
22 	mt76x02_mac_cc_reset(dev);
23 	mt76x02_edcca_init(dev);
24 
25 	if (mt76_is_mmio(&dev->mt76)) {
26 		mt76x02_dfs_init_params(dev);
27 		tasklet_enable(&dev->dfs_pd.dfs_tasklet);
28 	}
29 	mt76x02_pre_tbtt_enable(dev, true);
30 
31 	mt76_txq_schedule_all(&dev->mphy);
32 }
33 
mt76x0_set_sar_specs(struct ieee80211_hw * hw,const struct cfg80211_sar_specs * sar)34 int mt76x0_set_sar_specs(struct ieee80211_hw *hw,
35 			 const struct cfg80211_sar_specs *sar)
36 {
37 	int err = -EINVAL, power = hw->conf.power_level * 2;
38 	struct mt76x02_dev *dev = hw->priv;
39 	struct mt76_phy *mphy = &dev->mphy;
40 
41 	mutex_lock(&dev->mt76.mutex);
42 	if (!cfg80211_chandef_valid(&mphy->chandef))
43 		goto out;
44 
45 	err = mt76_init_sar_power(hw, sar);
46 	if (err)
47 		goto out;
48 
49 	dev->txpower_conf = mt76_get_sar_power(mphy, mphy->chandef.chan,
50 					       power);
51 	if (test_bit(MT76_STATE_RUNNING, &mphy->state))
52 		mt76x0_phy_set_txpower(dev);
53 out:
54 	mutex_unlock(&dev->mt76.mutex);
55 
56 	return err;
57 }
58 EXPORT_SYMBOL_GPL(mt76x0_set_sar_specs);
59 
mt76x0_config(struct ieee80211_hw * hw,u32 changed)60 int mt76x0_config(struct ieee80211_hw *hw, u32 changed)
61 {
62 	struct mt76x02_dev *dev = hw->priv;
63 
64 	mutex_lock(&dev->mt76.mutex);
65 
66 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
67 		ieee80211_stop_queues(hw);
68 		mt76x0_set_channel(dev, &hw->conf.chandef);
69 		ieee80211_wake_queues(hw);
70 	}
71 
72 	if (changed & IEEE80211_CONF_CHANGE_POWER) {
73 		struct mt76_phy *mphy = &dev->mphy;
74 
75 		dev->txpower_conf = hw->conf.power_level * 2;
76 		dev->txpower_conf = mt76_get_sar_power(mphy,
77 						       mphy->chandef.chan,
78 						       dev->txpower_conf);
79 		if (test_bit(MT76_STATE_RUNNING, &mphy->state))
80 			mt76x0_phy_set_txpower(dev);
81 	}
82 
83 	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
84 		if (!(hw->conf.flags & IEEE80211_CONF_MONITOR))
85 			dev->mt76.rxfilter |= MT_RX_FILTR_CFG_PROMISC;
86 		else
87 			dev->mt76.rxfilter &= ~MT_RX_FILTR_CFG_PROMISC;
88 
89 		mt76_wr(dev, MT_RX_FILTR_CFG, dev->mt76.rxfilter);
90 	}
91 
92 	mutex_unlock(&dev->mt76.mutex);
93 
94 	return 0;
95 }
96 EXPORT_SYMBOL_GPL(mt76x0_config);
97