forked from Minki/linux
mac80211: Fix quality reporting for wireless stats
Since "mac80211/cfg80211: move iwrange handler to cfg80211", the results for link quality from "iwlist scan" and "iwconfig" commands have been very different. The results are now consistent. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Reported- and tested-by: Larry Finger <larry.finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
parent
e79c1ba84c
commit
24776cfd55
@ -886,21 +886,6 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
|
||||
return ret;
|
||||
}
|
||||
|
||||
static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
|
||||
{
|
||||
u8 wstats_flags = 0;
|
||||
|
||||
wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
|
||||
IEEE80211_HW_SIGNAL_DBM) ?
|
||||
IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
|
||||
wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
|
||||
IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
|
||||
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
|
||||
wstats_flags |= IW_QUAL_DBM;
|
||||
|
||||
return wstats_flags;
|
||||
}
|
||||
|
||||
/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
|
||||
static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
|
||||
{
|
||||
@ -922,10 +907,45 @@ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev
|
||||
wstats->qual.noise = 0;
|
||||
wstats->qual.updated = IW_QUAL_ALL_INVALID;
|
||||
} else {
|
||||
wstats->qual.level = sta->last_signal;
|
||||
wstats->qual.qual = sta->last_qual;
|
||||
wstats->qual.noise = sta->last_noise;
|
||||
wstats->qual.updated = ieee80211_get_wstats_flags(local);
|
||||
wstats->qual.updated = 0;
|
||||
/*
|
||||
* mirror what cfg80211 does for iwrange/scan results,
|
||||
* otherwise userspace gets confused.
|
||||
*/
|
||||
if (local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
|
||||
IEEE80211_HW_SIGNAL_DBM)) {
|
||||
wstats->qual.updated |= IW_QUAL_LEVEL_UPDATED;
|
||||
wstats->qual.updated |= IW_QUAL_QUAL_UPDATED;
|
||||
} else {
|
||||
wstats->qual.updated |= IW_QUAL_LEVEL_INVALID;
|
||||
wstats->qual.updated |= IW_QUAL_QUAL_INVALID;
|
||||
}
|
||||
|
||||
if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
|
||||
wstats->qual.level = sta->last_signal;
|
||||
wstats->qual.qual = sta->last_signal;
|
||||
} else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
|
||||
int sig = sta->last_signal;
|
||||
|
||||
wstats->qual.updated |= IW_QUAL_DBM;
|
||||
wstats->qual.level = sig;
|
||||
if (sig < -110)
|
||||
sig = -110;
|
||||
else if (sig > -40)
|
||||
sig = -40;
|
||||
wstats->qual.qual = sig + 110;
|
||||
}
|
||||
|
||||
if (local->hw.flags & IEEE80211_HW_NOISE_DBM) {
|
||||
/*
|
||||
* This assumes that if driver reports noise, it also
|
||||
* reports signal in dBm.
|
||||
*/
|
||||
wstats->qual.noise = sta->last_noise;
|
||||
wstats->qual.updated |= IW_QUAL_NOISE_UPDATED;
|
||||
} else {
|
||||
wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
|
||||
}
|
||||
}
|
||||
|
||||
rcu_read_unlock();
|
||||
|
Loading…
Reference in New Issue
Block a user