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authorJouni Malinen <j@w1.fi>2010-03-29 23:28:30 -0700
committerJohn W. Linville <linville@tuxdriver.com>2010-03-31 14:46:42 -0400
commit17e4ec147f4939ca8c81b41b4261ec7974531381 (patch)
tree8066952a1dbef6656ac1f6d6a869326576b5006e /net/mac80211/cfg.c
parent32fbccafed7e935432b601f0453c2b702a385a25 (diff)
downloadlinux-17e4ec147f4939ca8c81b41b4261ec7974531381.tar.bz2
mac80211: Track Beacon signal strength and implement cqm events
Calculate a running average of the signal strength reported for Beacon frames and indicate cqm events if the average value moves below or above the configured threshold value (and filter out repetitive events with by using the configured hysteresis). Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/cfg.c')
-rw-r--r--net/mac80211/cfg.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a4ca425e4f3f..4edd73cbf052 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1415,9 +1415,6 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
struct ieee80211_vif *vif = &sdata->vif;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
- if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI))
- return -EOPNOTSUPP;
-
if (rssi_thold == bss_conf->cqm_rssi_thold &&
rssi_hyst == bss_conf->cqm_rssi_hyst)
return 0;
@@ -1425,6 +1422,12 @@ static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
bss_conf->cqm_rssi_thold = rssi_thold;
bss_conf->cqm_rssi_hyst = rssi_hyst;
+ if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return -EOPNOTSUPP;
+ return 0;
+ }
+
/* tell the driver upon association, unless already associated */
if (sdata->u.mgd.associated)
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);