VRPIU_AD_STAT_DISABLE
if (sc->sc_adstat != VRPIU_AD_STAT_DISABLE)
sc->sc_adstat = VRPIU_AD_STAT_DISABLE;
if (sc->sc_adstat == VRPIU_AD_STAT_DISABLE){
ad_enable = (sc->sc_adstat != VRPIU_AD_STAT_DISABLE);
if (sc->sc_adstat == VRPIU_AD_STAT_DISABLE) {