SPC_IDLE
case SPC_IDLE:
if (sc->sc_state != SPC_IDLE) {
sc->sc_state = SPC_IDLE;
if (sc->sc_state == SPC_IDLE)
sc->sc_state = SPC_IDLE;
if (sc->sc_state == SPC_IDLE)
if (sc->sc_state == SPC_IDLE)
sc->sc_state = SPC_IDLE;