/*
* Handle power-save state change in station mode.
*/
void
ieee80211_sta_pwrsave(struct ieee80211vap *vap, int enable)
{
struct ieee80211_node *ni = vap->iv_bss;
if (!((enable != 0) ^ ((ni->ni_flags & IEEE80211_NODE_PWR_MGT) != 0)))
return;
IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni,
"sta power save mode %s", enable ? "on" : "off");
if (!enable) {
ni->ni_flags &= ~IEEE80211_NODE_PWR_MGT;
ieee80211_send_nulldata(ieee80211_ref_node(ni));
/*
* Flush any queued frames; we can do this immediately
* because we know they'll be queued behind the null
* data frame we send the ap.
* XXX can we use a data frame to take us out of ps?
*/
if (ni->ni_psq.psq_len != 0)
pwrsave_flushq(ni);
} else {
ni->ni_flags |= IEEE80211_NODE_PWR_MGT;
ieee80211_send_nulldata(ieee80211_ref_node(ni));
}
}
void ieee80211_inact_timeout_sta(struct ieee80211vap *vap)
{
struct ieee80211_mlme_priv *mlme_priv = vap->iv_mlme_priv;
if (!mlme_priv->im_connection_up) {
return;
}
/*
* if there was an activity in the last IEEE80211_INACT_WAIT period.
* then reset the counter.
*/
if (CONVERT_SYSTEM_TIME_TO_MS(OS_GET_TIMESTAMP() - vap->iv_last_directed_frame) < (IEEE80211_INACT_WAIT * 1000)) {
vap->iv_inact_count = (vap->iv_keep_alive_timeout + IEEE80211_INACT_WAIT -1)/IEEE80211_INACT_WAIT;
}
if (vap->iv_inact_count) {
--vap->iv_inact_count;
if (vap->iv_inact_count == 0) {
if (ieee80211_sta_power_send_keepalive(vap->iv_pwrsave_sta) == ENXIO) {
ieee80211_send_nulldata(vap->iv_bss,false);
}
if (vap->iv_keep_alive_timeout) {
vap->iv_inact_count = (vap->iv_keep_alive_timeout + IEEE80211_INACT_WAIT -1)/IEEE80211_INACT_WAIT;
}
}
}
}
