diff options
| author | Felix Fietkau <nbd@nbd.name> | 2019-01-11 16:17:30 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-01-17 16:50:15 +0300 |
| commit | 02e5a769c0a48e4e145b765329bc9d22a70261e7 (patch) | |
| tree | 8afc87104ab1b8cf67c394a5debf4717a0824ceb /drivers/net/wireless/mediatek | |
| parent | ef13edc0070818f5cddb3a1d31957cc618e25e9d (diff) | |
| download | linux-02e5a769c0a48e4e145b765329bc9d22a70261e7.tar.xz | |
mt76: fix rssi ewma tracking
The generic EWMA code cannot deal with negative numbers, so convert signal
to a positive number before adding it
Fixes mt76x2 AGC tuning
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mac80211.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/util.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 226f98fff6ef..3b09d4560ae2 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -567,7 +567,9 @@ mt76_check_sta(struct mt76_dev *dev, struct sk_buff *skb) sta = container_of((void *) wcid, struct ieee80211_sta, drv_priv); - ewma_signal_add(&wcid->rssi, status->signal); + if (status->signal <= 0) + ewma_signal_add(&wcid->rssi, -status->signal); + wcid->inactive_count = 0; if (!test_bit(MT_WCID_FLAG_CHECK_PS, &wcid->flags)) diff --git a/drivers/net/wireless/mediatek/mt76/util.c b/drivers/net/wireless/mediatek/mt76/util.c index 6242421c6011..69270c1a9091 100644 --- a/drivers/net/wireless/mediatek/mt76/util.c +++ b/drivers/net/wireless/mediatek/mt76/util.c @@ -100,7 +100,7 @@ int mt76_get_min_avg_rssi(struct mt76_dev *dev) spin_lock(&dev->rx_lock); if (wcid->inactive_count++ < 5) - cur_rssi = ewma_signal_read(&wcid->rssi); + cur_rssi = -ewma_signal_read(&wcid->rssi); else cur_rssi = 0; spin_unlock(&dev->rx_lock); |