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mac80211: add support for per-chain signal strength reporting

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
[fix unit documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Felix Fietkau 2013-04-22 16:29:31 +02:00 • committed by Johannes Berg
parent 119363c7dc
commit ef0621e805
5 changed files with 39 additions and 1 deletions
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14
net/mac80211/rx.c
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@ -1372,6 +1372,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int i;
if (!sta)
return RX_CONTINUE;
@ -1422,6 +1423,19 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
ewma_add(&sta->avg_signal, -status->signal);
}
if (status->chains) {
sta->chains = status->chains;
for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) {
int signal = status->chain_signal[i];
if (!(status->chains & BIT(i)))
continue;
sta->chain_signal_last[i] = signal;
ewma_add(&sta->chain_signal_avg[i], -signal);
}
}
/*
* Change STA power saving mode only at the end of a frame
* exchange sequence.