MODE_STOP
if (sc->et.et_active && sc->mode != MODE_STOP)
if (mode == MODE_STOP) {
case MODE_STOP:
set_i8254_freq(MODE_STOP, 0);
set_i8254_freq(MODE_STOP, 0);
set_i8254_freq(MODE_STOP, 0);
sc->mode = MODE_STOP;
set_i8254_freq(MODE_STOP, 0);