cfxga_wait
u_int cfxga_wait(struct cfxga_softc *, u_int, u_int);
if (cfxga_wait(sc, BITBLT_ACTIVE, 0) == 0) {
if (cfxga_wait(sc, BITBLT_ACTIVE, BITBLT_ACTIVE) == 0)
if (cfxga_wait(sc, BITBLT_FIFO_FULL, 0) == 0)