WDSC_DMA_ACTIVE
KASSERT((wsc->sc_flags & WDSC_DMA_ACTIVE) == 0);
KASSERT((wsc->sc_flags & WDSC_DMA_ACTIVE) == 0);
wsc->sc_flags |= WDSC_DMA_ACTIVE;
if (wsc->sc_flags & WDSC_DMA_ACTIVE) {
wsc->sc_flags &= ~(WDSC_DMA_ACTIVE | WDSC_DMA_MAPLOADED);
KASSERT((osc->sc_flags & WDSC_DMA_ACTIVE) == 0);
KASSERT((osc->sc_flags & WDSC_DMA_ACTIVE) == 0);
osc->sc_flags |= WDSC_DMA_ACTIVE;
if (osc->sc_flags & WDSC_DMA_ACTIVE) {
osc->sc_flags &= ~(WDSC_DMA_ACTIVE | WDSC_DMA_MAPLOADED);