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mt76: mt7615: fix/rewrite the dfs state handling logic

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Copy the updated logic from mt7915 to to fix issues in handling DFS radar
detector states

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2022-02-03 13:39:31 +01:00
parent 3f3064486b
commit 2c86f67520
2 changed files with 30 additions and 22 deletions
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1
drivers/net/wireless/mediatek/mt76/mt7615/init.c
View File

@ -552,7 +552,6 @@ void mt7615_init_device(struct mt7615_dev *dev)
dev->pm.stats.last_wake_event = jiffies;
dev->pm.stats.last_doze_event = jiffies;
mt7615_cap_dbdc_disable(dev);
dev->phy.dfs_state = -1;
#ifdef CONFIG_NL80211_TESTMODE
dev->mt76.test_ops = &mt7615_testmode_ops;

51
drivers/net/wireless/mediatek/mt76/mt7615/mac.c
View File

@ -2287,44 +2287,51 @@ mt7615_dfs_init_radar_specs(struct mt7615_phy *phy)
int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy)
{
struct cfg80211_chan_def *chandef = &phy->mt76->chandef;
struct mt7615_dev *dev = phy->dev;
bool ext_phy = phy != &dev->phy;
enum mt76_dfs_state dfs_state, prev_state;
int err;
if (is_mt7663(&dev->mt76))
return 0;
if (dev->mt76.region == NL80211_DFS_UNSET) {
phy->dfs_state = -1;
if (phy->rdd_state)
goto stop;
prev_state = phy->mt76->dfs_state;
dfs_state = mt76_phy_dfs_state(phy->mt76);
return 0;
}
if (test_bit(MT76_SCANNING, &phy->mt76->state))
if (prev_state == dfs_state)
return 0;
if (phy->dfs_state == chandef->chan->dfs_state)
return 0;
if (prev_state == MT_DFS_STATE_UNKNOWN)
mt7615_dfs_stop_radar_detector(phy);
err = mt7615_dfs_init_radar_specs(phy);
if (err < 0) {
phy->dfs_state = -1;
if (dfs_state == MT_DFS_STATE_DISABLED)
goto stop;
if (prev_state <= MT_DFS_STATE_DISABLED) {
err = mt7615_dfs_init_radar_specs(phy);
if (err < 0)
return err;
err = mt7615_dfs_start_radar_detector(phy);
if (err < 0)
return err;
phy->mt76->dfs_state = MT_DFS_STATE_CAC;
}
phy->dfs_state = chandef->chan->dfs_state;
if (dfs_state == MT_DFS_STATE_CAC)
return 0;
if (chandef->chan->flags & IEEE80211_CHAN_RADAR) {
if (chandef->chan->dfs_state != NL80211_DFS_AVAILABLE)
return mt7615_dfs_start_radar_detector(phy);
return mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_END, ext_phy,
MT_RX_SEL0, 0);
err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_END,
ext_phy, MT_RX_SEL0, 0);
if (err < 0) {
phy->mt76->dfs_state = MT_DFS_STATE_UNKNOWN;
return err;
}
phy->mt76->dfs_state = MT_DFS_STATE_ACTIVE;
return 0;
stop:
err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_NORMAL_START, ext_phy,
MT_RX_SEL0, 0);
@ -2332,6 +2339,8 @@ stop:
return err;
mt7615_dfs_stop_radar_detector(phy);
phy->mt76->dfs_state = MT_DFS_STATE_DISABLED;
return 0;
}