CNTR_DDIR
dev->sc_dmacmd |= CNTR_DDIR;
if ((dev->sc_dmacmd & (CNTR_TCEN | CNTR_DDIR)) == 0) {
if ((dev->sc_dmacmd & (CNTR_TCEN | CNTR_DDIR)) == 0) {
dev->sc_dmacmd |= CNTR_DDIR;
if ((dev->sc_dmacmd & (CNTR_TCEN | CNTR_DDIR)) == 0) {
if ((dev->sc_dmacmd & (CNTR_TCEN | CNTR_DDIR)) == 0) {