TPM_ACCESS
if ((bus_space_read_1(sc->sc_bt, sc->sc_bh, TPM_ACCESS) &
bus_space_write_1(sc->sc_bt, sc->sc_bh, TPM_ACCESS,
while ((r = bus_space_read_1(sc->sc_bt, sc->sc_bh, TPM_ACCESS) &
bus_space_write_1(bt, bh, TPM_ACCESS, TPM_ACCESS_REQUEST_USE);
while ((reg = bus_space_read_1(bt, bh, TPM_ACCESS) &
bus_space_write_1(sc->sc_bt, sc->sc_bh, TPM_ACCESS,