sc_istate
switch (fdc->sc_istate) {
fdc->sc_istate = ISTATE_DONE;
fdc->sc_istate = ISTATE_SPURIOUS;
fdc->sc_istate = ISTATE_DONE;
if (fdc->sc_istate != ISTATE_DONE)
fdc->sc_istate = ISTATE_IDLE;
if (fdc->sc_istate != ISTATE_IDLE) {
fdc->sc_state, fdc->sc_istate);
fdc->sc_istate = ISTATE_IDLE;
fdc->sc_istate = ISTATE_SENSEI;
fdc->sc_istate = ISTATE_DMA;
fdc->sc_istate = ISTATE_SENSEI;
fdc->sc_istate = ISTATE_SENSEI;
fdc->sc_istate = ISTATE_IDLE;