ncr_ctrl_intr
add_sicallback((si_farg)ncr_ctrl_intr, (void *)cur_softc, 0);
rem_sicallback((si_farg)ncr_ctrl_intr);
rem_sicallback((si_farg)ncr_ctrl_intr);
if (st_dmagrab((dma_farg)ncr_ctrl_intr, (dma_farg)run_main,
rem_sicallback((si_farg)ncr_ctrl_intr);
st_dmagrab((dma_farg)ncr_ctrl_intr, (dma_farg)run_main,
static void ncr_ctrl_intr(struct ncr_softc *);
ncr_ctrl_intr(cur_softc);
static void ncr_ctrl_intr(struct ncr_softc *);