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authorFelix Fietkau <nbd@openwrt.org>2013-04-22 16:29:31 +0200
committerJohannes Berg <johannes.berg@intel.com>2013-05-16 22:39:38 +0200
commitef0621e805f9ef76eaf31ce6205028fe467e9ca9 (patch)
tree44a6af5c68b914cc8bec0b08b5a72d9ed7d6ef00 /net/mac80211/rx.c
parentcfg80211: add support for per-chain signal strength reporting (diff)
downloadlinux-ef0621e805f9ef76eaf31ce6205028fe467e9ca9.tar.xz
linux-ef0621e805f9ef76eaf31ce6205028fe467e9ca9.zip
mac80211: add support for per-chain signal strength reporting
Signed-off-by: Felix Fietkau <nbd@openwrt.org> [fix unit documentation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c8447af76ead..22e412b0767f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -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.