+void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_conf *conf = &local->hw.conf;
+
+ WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
+ !(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) ||
+ (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS));
+
+ local->disable_dynamic_ps = false;
+ conf->dynamic_ps_timeout = local->dynamic_ps_user_timeout;
+}
+EXPORT_SYMBOL(ieee80211_enable_dyn_ps);
+
+void ieee80211_disable_dyn_ps(struct ieee80211_vif *vif)
+{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_conf *conf = &local->hw.conf;
+
+ WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
+ !(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) ||
+ (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS));
+
+ local->disable_dynamic_ps = true;
+ conf->dynamic_ps_timeout = 0;
+ del_timer_sync(&local->dynamic_ps_timer);
+ ieee80211_queue_work(&local->hw,
+ &local->dynamic_ps_enable_work);
+}
+EXPORT_SYMBOL(ieee80211_disable_dyn_ps);
+