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| author | Bruno Randolf <br1@einfach.org> | 2010-12-02 19:12:43 +0900 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-12-07 16:09:12 -0500 |
| commit | 541a45a142df281c974d74eac2066138fc107b23 (patch) | |
| tree | b96f4808c3f17f2f560db9569ca2b08dba9eab67 /net/wireless | |
| parent | 22de94de7de78b8de2fb1f2df5aa85b5556cfcfd (diff) | |
| download | linux-541a45a142df281c974d74eac2066138fc107b23.tar.gz linux-541a45a142df281c974d74eac2066138fc107b23.tar.bz2 linux-541a45a142df281c974d74eac2066138fc107b23.zip | |
nl80211/mac80211: Report signal average
Extend nl80211 to report an exponential weighted moving average (EWMA) of the
signal value. Since the signal value usually fluctuates between different
packets, an average can be more useful than the value of the last packet.
This uses the recently added generic EWMA library function.
--
v2: fix ABI breakage and change factor to be a power of 2.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 56508d40c740..2cf03331d4a2 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1896,6 +1896,9 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, if (sinfo->filled & STATION_INFO_SIGNAL) NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, sinfo->signal); + if (sinfo->filled & STATION_INFO_SIGNAL_AVG) + NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, + sinfo->signal_avg); if (sinfo->filled & STATION_INFO_TX_BITRATE) { txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); if (!txrate) |