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C++ bus_dmamap_destroy函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中bus_dmamap_destroy函数的典型用法代码示例。如果您正苦于以下问题：C++ bus_dmamap_destroy函数的具体用法？C++ bus_dmamap_destroy怎么用？C++ bus_dmamap_destroy使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了bus_dmamap_destroy函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: auich_alloc_cdata

static int
auich_alloc_cdata(struct auich_softc *sc)
{
	bus_dma_segment_t seg;
	int error, rseg;

	/*
	 * Allocate the control data structure, and create and load the
	 * DMA map for it.
	 */
	if ((error = bus_dmamem_alloc(sc->dmat,
				      sizeof(struct auich_cdata),
				      PAGE_SIZE, 0, &seg, 1, &rseg, 0)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to allocate control data, error = %d\n", error);
		goto fail_0;
	}

	if ((error = bus_dmamem_map(sc->dmat, &seg, rseg,
				    sizeof(struct auich_cdata),
				    (void **) &sc->sc_cdata,
				    sc->sc_dmamap_flags)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to map control data, error = %d\n", error);
		goto fail_1;
	}

	if ((error = bus_dmamap_create(sc->dmat, sizeof(struct auich_cdata), 1,
				       sizeof(struct auich_cdata), 0, 0,
				       &sc->sc_cddmamap)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to create control data DMA map, "
		    "error = %d\n", error);
		goto fail_2;
	}

	if ((error = bus_dmamap_load(sc->dmat, sc->sc_cddmamap,
				     sc->sc_cdata, sizeof(struct auich_cdata),
				     NULL, 0)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable tp load control data DMA map, "
		    "error = %d\n", error);
		goto fail_3;
	}

	sc->pcmo.dmalist = sc->sc_cdata->ic_dmalist_pcmo;
	sc->pcmi.dmalist = sc->sc_cdata->ic_dmalist_pcmi;
	sc->mici.dmalist = sc->sc_cdata->ic_dmalist_mici;

	return 0;

 fail_3:
	bus_dmamap_destroy(sc->dmat, sc->sc_cddmamap);
 fail_2:
	bus_dmamem_unmap(sc->dmat, (void *) sc->sc_cdata,
	    sizeof(struct auich_cdata));
 fail_1:
	bus_dmamem_free(sc->dmat, &seg, rseg);
 fail_0:
	return error;
}
开发者ID:lacombar，项目名称:netbsd-alc，代码行数:57，代码来源:auich.c


示例2: auvia_malloc

void *
auvia_malloc(void *addr, int direction, size_t size, int pool, int flags)
{
	struct auvia_softc *sc = addr;
	struct auvia_dma *p;
	int error;
	int rseg;

	p = malloc(sizeof(*p), pool, flags);
	if (!p)
		return 0;

	p->size = size;
	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &p->seg,
	    1, &rseg, BUS_DMA_NOWAIT)) != 0) {
		printf("%s: unable to allocate dma, error = %d\n",
		    sc->sc_dev.dv_xname, error);
		goto fail_alloc;
	}

	if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
	    BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
		printf("%s: unable to map dma, error = %d\n",
		    sc->sc_dev.dv_xname, error);
		goto fail_map;
	}

	if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
	    BUS_DMA_NOWAIT, &p->map)) != 0) {
		printf("%s: unable to create dma map, error = %d\n",
		    sc->sc_dev.dv_xname, error);
		goto fail_create;
	}

	if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
	    BUS_DMA_NOWAIT)) != 0) {
		printf("%s: unable to load dma map, error = %d\n",
		    sc->sc_dev.dv_xname, error);
		goto fail_load;
	}

	p->next = sc->sc_dmas;
	sc->sc_dmas = p;

	return p->addr;


fail_load:
	bus_dmamap_destroy(sc->sc_dmat, p->map);
fail_create:
	bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
fail_map:
	bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
fail_alloc:
	free(p, pool);
	return 0;
}
开发者ID:repos-holder，项目名称:openbsd-patches，代码行数:57，代码来源:auvia.c


示例3: usb_pc_dmamap_destroy

/*------------------------------------------------------------------------*
 *	usb_pc_dmamap_destroy
 *
 * This function is NULL safe.
 *------------------------------------------------------------------------*/
void
usb_pc_dmamap_destroy(struct usb_page_cache *pc)
{
	if (pc && pc->tag) {
		bus_dmamap_destroy(pc->tag, pc->map);
		pc->tag = NULL;
		pc->map = NULL;
	}
}
开发者ID:Gwenio，项目名称:DragonFlyBSD，代码行数:14，代码来源:usb_busdma.c


示例4: auacer_freemem

static int
auacer_freemem(struct auacer_softc *sc, struct auacer_dma *p)
{

	bus_dmamap_unload(sc->dmat, p->map);
	bus_dmamap_destroy(sc->dmat, p->map);
	bus_dmamem_unmap(sc->dmat, p->addr, p->size);
	bus_dmamem_free(sc->dmat, p->segs, p->nsegs);
	return 0;
}
开发者ID:NetBsdDriverProxy，项目名称:NetBsdDriverProxy，代码行数:10，代码来源:auacer.c


示例5: malo_hal_detach

void
malo_hal_detach(struct malo_hal *mh)
{

	bus_dmamem_free(mh->mh_dmat, mh->mh_cmdbuf, mh->mh_dmamap);
	bus_dmamap_destroy(mh->mh_dmat, mh->mh_dmamap);
	bus_dma_tag_destroy(mh->mh_dmat);
	mtx_destroy(&mh->mh_mtx);
	free(mh, M_DEVBUF);
}
开发者ID:coyizumi，项目名称:cs111，代码行数:10，代码来源:if_malohal.c


示例6: yds_freemem

static int
yds_freemem(struct yds_softc *sc, struct yds_dma *p)
{

	bus_dmamap_unload(sc->sc_dmatag, p->map);
	bus_dmamap_destroy(sc->sc_dmatag, p->map);
	bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size);
	bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs);
	return 0;
}
开发者ID:ryoon，项目名称:netbsd-xhci，代码行数:10，代码来源:yds.c


示例7: drm_pci_alloc

drm_dma_handle_t *
drm_pci_alloc(drm_device_t *dev, size_t size, size_t align, dma_addr_t maxaddr)
{
    drm_dma_handle_t *h;
    int error, nsegs;


    /* Need power-of-two alignment, so fail the allocation if it isn't. */
    if ((align & (align - 1)) != 0) {
        DRM_ERROR("drm_pci_alloc with non-power-of-two alignment %d\n",
                  (int)align);
        return NULL;
    }

    h = malloc(sizeof(drm_dma_handle_t), M_DRM, M_ZERO | M_NOWAIT);

    if (h == NULL)
        return NULL;
    if ((error = bus_dmamem_alloc(dev->pa.pa_dmat, size, align, 0,
                                  h->segs, 1, &nsegs, BUS_DMA_NOWAIT)) != 0) {
        printf("drm: Unable to allocate DMA, error %d\n", error);
        goto fail;
    }
    if ((error = bus_dmamem_map(dev->pa.pa_dmat, h->segs, nsegs, size,
                                &h->addr, BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
        printf("drm: Unable to map DMA, error %d\n", error);
        goto free;
    }
    if ((error = bus_dmamap_create(dev->pa.pa_dmat, size, 1, size, 0,
                                   BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &h->map)) != 0) {
        printf("drm: Unable to create DMA map, error %d\n", error);
        goto unmap;
    }
    if ((error = bus_dmamap_load(dev->pa.pa_dmat, h->map, h->addr, size,
                                 NULL, BUS_DMA_NOWAIT)) != 0) {
        printf("drm: Unable to load DMA map, error %d\n", error);
        goto destroy;
    }
    h->busaddr = DRM_PCI_DMAADDR(h);
    h->vaddr = h->addr;
    h->size = size;

    return h;

destroy:
    bus_dmamap_destroy(dev->pa.pa_dmat, h->map);
unmap:
    bus_dmamem_unmap(dev->pa.pa_dmat, h->addr, size);
free:
    bus_dmamem_free(dev->pa.pa_dmat, h->segs, 1);
fail:
    free(h, M_DRM);
    return NULL;

}
开发者ID:lacombar，项目名称:netbsd-alc，代码行数:55，代码来源:drm_pci.c


示例8: auvia_malloc_dmamem

static void *
auvia_malloc_dmamem(void *addr, int direction, size_t size)
{
	struct auvia_softc *sc;
	struct auvia_dma *p;
	int error;
	int rseg;

	p = kmem_alloc(sizeof(*p), KM_SLEEP);
	if (p == NULL)
		return NULL;
	sc = addr;
	p->size = size;
	if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &p->seg,
				      1, &rseg, BUS_DMA_WAITOK)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to allocate DMA, error = %d\n", error);
		goto fail_alloc;
	}

	if ((error = bus_dmamem_map(sc->sc_dmat, &p->seg, rseg, size, &p->addr,
				    BUS_DMA_WAITOK | BUS_DMA_COHERENT)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to map DMA, error = %d\n",
		       error);
		goto fail_map;
	}

	if ((error = bus_dmamap_create(sc->sc_dmat, size, 1, size, 0,
				       BUS_DMA_WAITOK, &p->map)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to create DMA map, error = %d\n",
		       error);
		goto fail_create;
	}

	if ((error = bus_dmamap_load(sc->sc_dmat, p->map, p->addr, size, NULL,
				     BUS_DMA_WAITOK)) != 0) {
		aprint_error_dev(sc->sc_dev, "unable to load DMA map, error = %d\n",
		       error);
		goto fail_load;
	}

	p->next = sc->sc_dmas;
	sc->sc_dmas = p;

	return p->addr;

fail_load:
	bus_dmamap_destroy(sc->sc_dmat, p->map);
fail_create:
	bus_dmamem_unmap(sc->sc_dmat, p->addr, size);
fail_map:
	bus_dmamem_free(sc->sc_dmat, &p->seg, 1);
fail_alloc:
	kmem_free(p, sizeof(*p));
	return NULL;
}
开发者ID:eyberg，项目名称:rumpkernel-netbsd-src，代码行数:55，代码来源:auvia.c


示例9: rtk_detach

/*
 * rtk_detach:
 *     Detach a rtk interface.
 */
int
rtk_detach(struct rtk_softc *sc)
{
	struct ifnet *ifp = &sc->ethercom.ec_if;
	struct rtk_tx_desc *txd;
	int i;

	/*
	 * Succeed now if there isn't any work to do.
	 */
	if ((sc->sc_flags & RTK_ATTACHED) == 0)
		return 0;

	/* Unhook our tick handler. */
	callout_stop(&sc->rtk_tick_ch);

	/* Detach all PHYs. */
	mii_detach(&sc->mii, MII_PHY_ANY, MII_OFFSET_ANY);

	/* Delete all remaining media. */
	ifmedia_delete_instance(&sc->mii.mii_media, IFM_INST_ANY);

	rnd_detach_source(&sc->rnd_source);

	ether_ifdetach(ifp);
	if_detach(ifp);

	for (i = 0; i < RTK_TX_LIST_CNT; i++) {
		txd = &sc->rtk_tx_descs[i];
		if (txd->txd_dmamap != NULL)
			bus_dmamap_destroy(sc->sc_dmat, txd->txd_dmamap);
	}
	bus_dmamap_destroy(sc->sc_dmat, sc->recv_dmamap);
	bus_dmamem_unmap(sc->sc_dmat, sc->rtk_rx_buf,
	    RTK_RXBUFLEN + 16);
	bus_dmamem_free(sc->sc_dmat, &sc->sc_dmaseg, sc->sc_dmanseg);

	/* we don't want to run again */
	sc->sc_flags &= ~RTK_ATTACHED;

	return 0;
}
开发者ID:yazshel，项目名称:netbsd-kernel，代码行数:46，代码来源:rtl81x9.c


示例10: drm_pci_free

/*
 * Release the bus DMA mappings and memory in dmah, and deallocate it.
 */
void
drm_pci_free(struct drm_device *dev, struct drm_dma_handle *dmah)
{

	bus_dmamap_unload(dmah->dmah_tag, dmah->dmah_map);
	bus_dmamap_destroy(dmah->dmah_tag, dmah->dmah_map);
	bus_dmamem_unmap(dmah->dmah_tag, dmah->vaddr, dmah->size);
	bus_dmamem_free(dmah->dmah_tag, &dmah->dmah_seg, 1);
	dmah->dmah_tag = NULL;	/* XXX paranoia */
	kmem_free(dmah, sizeof(*dmah));
}
开发者ID:eyberg，项目名称:rumpkernel-netbsd-src，代码行数:14，代码来源:drm_memory.c


示例11: aha_free

void
aha_free(struct aha_softc *aha)
{
	switch (aha->init_level) {
	default:
	case 8:
	{
		struct sg_map_node *sg_map;

		while ((sg_map = SLIST_FIRST(&aha->sg_maps))!= NULL) {
			SLIST_REMOVE_HEAD(&aha->sg_maps, links);
			bus_dmamap_unload(aha->sg_dmat, sg_map->sg_dmamap);
			bus_dmamem_free(aha->sg_dmat, sg_map->sg_vaddr,
			    sg_map->sg_dmamap);
			free(sg_map, M_DEVBUF);
		}
		bus_dma_tag_destroy(aha->sg_dmat);
	}
	case 7:
		bus_dmamap_unload(aha->ccb_dmat, aha->ccb_dmamap);
	case 6:
		bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array,
		    aha->ccb_dmamap);
		bus_dmamap_destroy(aha->ccb_dmat, aha->ccb_dmamap);
	case 5:
		bus_dma_tag_destroy(aha->ccb_dmat);
	case 4:
		bus_dmamap_unload(aha->mailbox_dmat, aha->mailbox_dmamap);
	case 3:
		bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes,
		    aha->mailbox_dmamap);
		bus_dmamap_destroy(aha->mailbox_dmat, aha->mailbox_dmamap);
	case 2:
		bus_dma_tag_destroy(aha->buffer_dmat);
	case 1:
		bus_dma_tag_destroy(aha->mailbox_dmat);
	case 0:
		break;
	}
	mtx_destroy(&aha->lock);
}
开发者ID:ChristosKa，项目名称:freebsd，代码行数:41，代码来源:aha.c


示例12: drm_pci_free

void
drm_pci_free(drm_device_t *dev, drm_dma_handle_t *h)
{
    if (h == NULL)
        return;
    bus_dmamap_unload(dev->pa.pa_dmat, h->map);
    bus_dmamap_destroy(dev->pa.pa_dmat, h->map);
    bus_dmamem_unmap(dev->pa.pa_dmat, h->addr, h->size);
    bus_dmamem_free(dev->pa.pa_dmat, h->segs, 1);

    free(h, M_DRM);
}
开发者ID:lacombar，项目名称:netbsd-alc，代码行数:12，代码来源:drm_pci.c


示例13: msi_eq_free

void
msi_eq_free(bus_dma_tag_t t, struct msi_eq *meq)
{
	bus_size_t size;

	size = roundup(meq->meq_nentries * sizeof(struct msi_msg), PAGE_SIZE);

	bus_dmamap_unload(t, meq->meq_map);
	bus_dmamem_unmap(t, meq->meq_va, size);
	bus_dmamem_free(t, &meq->meq_seg, 1);
	bus_dmamap_destroy(t, meq->meq_map);
	free(meq, M_DEVBUF, 0);
}
开发者ID:DavidAlphaFox，项目名称:openbsd-kernel，代码行数:13，代码来源:msi.c


示例14: pdq_os_databuf_free

extern void
pdq_os_databuf_free(
    pdq_os_ctx_t *sc,
    struct mbuf *m)
{
    if (m->m_flags & (M_HASRXDMAMAP|M_HASTXDMAMAP)) {
	bus_dmamap_t map = M_GETCTX(m, bus_dmamap_t);
	bus_dmamap_unload(sc->sc_dmatag, map);
	bus_dmamap_destroy(sc->sc_dmatag, map);
	m->m_flags &= ~(M_HASRXDMAMAP|M_HASTXDMAMAP);
    }
    m_freem(m);
}
开发者ID:coyizumi，项目名称:cs111，代码行数:13，代码来源:pdq_ifsubr.c


示例15: iee_detach

void
iee_detach(struct iee_softc *sc, int flags)
{
	struct ifnet *ifp = &sc->sc_ethercom.ec_if;

	if ((ifp->if_flags & IFF_RUNNING) != 0)
		iee_stop(ifp, 1);
	ether_ifdetach(ifp);
	if_detach(ifp);
	bus_dmamap_unload(sc->sc_dmat, sc->sc_shmem_map);
	bus_dmamap_destroy(sc->sc_dmat, sc->sc_shmem_map);
	bus_dmamem_unmap(sc->sc_dmat, sc->sc_shmem_addr, sc->sc_shmem_sz);
	bus_dmamem_free(sc->sc_dmat, &sc->sc_dma_segs, sc->sc_dma_rsegs);
}
开发者ID:eyberg，项目名称:rumpkernel-netbsd-src，代码行数:14，代码来源:i82596.c


示例16: vdsk_dring_free

void
vdsk_dring_free(bus_dma_tag_t t, struct vdsk_dring *vd)
{
	bus_size_t size;

	size = vd->vd_nentries * sizeof(struct vd_desc);
	size = roundup(size, PAGE_SIZE);

	bus_dmamap_unload(t, vd->vd_map);
	bus_dmamem_unmap(t, (caddr_t)vd->vd_desc, size);
	bus_dmamem_free(t, &vd->vd_seg, 1);
	bus_dmamap_destroy(t, vd->vd_map);
	free(vd, M_DEVBUF);
}
开发者ID:enukane，项目名称:openbsd-work，代码行数:14，代码来源:vdsk.c


示例17: ldc_queue_alloc

struct ldc_queue *
ldc_queue_alloc(int nentries)
#endif
{
	struct ldc_queue *lq;
	bus_size_t size;
	vaddr_t va = 0;
#if OPENBSD_BUSDMA
	int nsegs;
#endif

	lq = kmem_zalloc(sizeof(struct ldc_queue), KM_NOSLEEP);
	if (lq == NULL)
		return NULL;

	mutex_init(&lq->lq_mtx, MUTEX_DEFAULT, IPL_TTY);

	size = roundup(nentries * sizeof(struct ldc_pkt), PAGE_SIZE);
#if OPENBSD_BUSDMA
	if (bus_dmamap_create(t, size, 1, size, 0,
	    BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &lq->lq_map) != 0)
		return (NULL);

	if (bus_dmamem_alloc(t, size, PAGE_SIZE, 0, &lq->lq_seg, 1,
	    &nsegs, BUS_DMA_NOWAIT) != 0)
		goto destroy;

	if (bus_dmamem_map(t, &lq->lq_seg, 1, size, (void *)&va,
	    BUS_DMA_NOWAIT) != 0)
		goto free;

	 if (bus_dmamap_load(t, lq->lq_map, (void*)va, size, NULL,
	    BUS_DMA_NOWAIT) != 0)
		goto unmap;
#else
	 va = (vaddr_t)kmem_zalloc(size, KM_NOSLEEP);
#endif
	lq->lq_va = (vaddr_t)va;
	lq->lq_nentries = nentries;
	return (lq);
#if OPENBSD_BUSDMA
unmap:
	bus_dmamem_unmap(t, (void*)va, size);
free:
	bus_dmamem_free(t, &lq->lq_seg, 1);
destroy:
	bus_dmamap_destroy(t, lq->lq_map);
#endif
	return (NULL);
}
开发者ID:ryo，项目名称:netbsd-src，代码行数:50，代码来源:ldc.c


示例18: njata32_detach

int
njata32_detach(struct njata32_softc *sc, int flags)
{
	int rv, devno;

	if (sc->sc_flags & NJATA32_CMDPG_MAPPED) {
		if ((rv = wdcdetach(sc->sc_wdcdev.sc_atac.atac_dev, flags)))
			return rv;

		/* free DMA resource */
		for (devno = 0; devno < NJATA32_NUM_DEV; devno++) {
			bus_dmamap_destroy(sc->sc_dmat,
			    sc->sc_dev[devno].d_dmamap_xfer);
		}
		bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap_sgt);
		bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap_sgt);
		bus_dmamem_unmap(sc->sc_dmat, (void *)sc->sc_sgtpg,
		    sizeof(struct njata32_dma_page));
		bus_dmamem_free(sc->sc_dmat, &sc->sc_sgt_seg, sc->sc_sgt_nsegs);
	}

	return 0;
}
开发者ID:Tommmster，项目名称:netbsd-avr32，代码行数:23，代码来源:ninjaata32.c


示例19: rtwn_free_rx_list

void
rtwn_free_rx_list(struct rtwn_pci_softc *sc)
{
	struct rtwn_rx_ring *rx_ring = &sc->rx_ring;
	struct rtwn_rx_data *rx_data;
	int i, s;

	s = splnet();

	if (rx_ring->map) {
		if (rx_ring->desc) {
			bus_dmamap_unload(sc->sc_dmat, rx_ring->map);
			bus_dmamem_unmap(sc->sc_dmat, (caddr_t)rx_ring->desc,
			    sizeof (struct r92c_rx_desc_pci) *
			    RTWN_RX_LIST_COUNT);
			bus_dmamem_free(sc->sc_dmat, &rx_ring->seg,
			    rx_ring->nsegs);
			rx_ring->desc = NULL;
		}
		bus_dmamap_destroy(sc->sc_dmat, rx_ring->map);
		rx_ring->map = NULL;
	}

	for (i = 0; i < RTWN_RX_LIST_COUNT; i++) {
		rx_data = &rx_ring->rx_data[i];

		if (rx_data->m != NULL) {
			bus_dmamap_unload(sc->sc_dmat, rx_data->map);
			m_freem(rx_data->m);
			rx_data->m = NULL;
		}
		bus_dmamap_destroy(sc->sc_dmat, rx_data->map);
		rx_data->map = NULL;
	}

	splx(s);
}
开发者ID:mosconi，项目名称:openbsd，代码行数:37，代码来源:if_rtwn.c


示例20: lsi64854_detach

int
lsi64854_detach(struct lsi64854_softc *sc)
{

	if (sc->setup != NULL) {
		bus_dmamap_sync(sc->sc_buffer_dmat, sc->sc_dmamap,
		    (L64854_GCSR(sc) & L64854_WRITE) != 0 ?
		    BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
		bus_dmamap_unload(sc->sc_buffer_dmat, sc->sc_dmamap);
		bus_dmamap_destroy(sc->sc_buffer_dmat, sc->sc_dmamap);
		bus_dma_tag_destroy(sc->sc_buffer_dmat);
	}

	return (0);
}
开发者ID:coyizumi，项目名称:cs111，代码行数:15，代码来源:lsi64854.c



注：本文中的bus_dmamap_destroy函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ bus_dmamap_sync函数代码示例发布时间：2022-05-30
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