diff options
| author | Felix Fietkau <nbd@nbd.name> | 2022-02-04 22:11:01 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2022-02-24 16:40:22 +0300 |
| commit | 4550fb9e98104febbc98b39fdc522e0bb80c915f (patch) | |
| tree | b2136d0db8b846579001f0d8ecd2e03d0fd44a25 /drivers/net/wireless/mediatek/mt76/mac80211.c | |
| parent | 77787358bed9131767118d3bd9f6a38405c2bfde (diff) | |
| download | linux-4550fb9e98104febbc98b39fdc522e0bb80c915f.tar.xz | |
mt76: improve signal strength reporting
Instead of just taking the maximum per-chain signal strength values,
add an approximation for the sum of the combined signal.
This should more accurately reflect the real signal strength, especially
if the per-chain signal strength values are close to each other
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mac80211.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mac80211.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index a4bb281a74e6..9796419c99e1 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -932,6 +932,35 @@ void mt76_wcid_key_setup(struct mt76_dev *dev, struct mt76_wcid *wcid, } EXPORT_SYMBOL(mt76_wcid_key_setup); +static int +mt76_rx_signal(struct mt76_rx_status *status) +{ + s8 *chain_signal = status->chain_signal; + int signal = -128; + u8 chains; + + for (chains = status->chains; chains; chains >>= 1, chain_signal++) { + int cur, diff; + + if (!(chains & BIT(0))) + continue; + + cur = *chain_signal; + if (cur > signal) + swap(cur, signal); + + diff = signal - cur; + if (diff == 0) + signal += 3; + else if (diff <= 2) + signal += 2; + else if (diff <= 6) + signal += 1; + } + + return signal; +} + static void mt76_rx_convert(struct mt76_dev *dev, struct sk_buff *skb, struct ieee80211_hw **hw, @@ -960,6 +989,9 @@ mt76_rx_convert(struct mt76_dev *dev, struct sk_buff *skb, status->ampdu_reference = mstat.ampdu_ref; status->device_timestamp = mstat.timestamp; status->mactime = mstat.timestamp; + status->signal = mt76_rx_signal(&mstat); + if (status->signal <= -128) + status->flag |= RX_FLAG_NO_SIGNAL_VAL; if (ieee80211_is_beacon(hdr->frame_control) || ieee80211_is_probe_resp(hdr->frame_control)) |