C++ (Cpp) rtsx_pci_dma_unmap_sg示例

示例#1

文件： rtsx_pci_sdmmc.c 项目： 383530895/linux

static void sdmmc_post_req(struct mmc_host *mmc, struct mmc_request *mrq,
		int err)
{
	struct realtek_pci_sdmmc *host = mmc_priv(mmc);
	struct rtsx_pcr *pcr = host->pcr;
	struct mmc_data *data = mrq->data;
	int read = data->flags & MMC_DATA_READ;

	rtsx_pci_dma_unmap_sg(pcr, data->sg, data->sg_len, read);
	data->host_cookie = 0;
}

示例#2

文件： rtsx_pcr.c 项目： mdamt/linux

int rtsx_pci_transfer_data(struct rtsx_pcr *pcr, struct scatterlist *sglist,
		int num_sg, bool read, int timeout)
{
	int err = 0, count;

	pcr_dbg(pcr, "--> %s: num_sg = %d\n", __func__, num_sg);
	count = rtsx_pci_dma_map_sg(pcr, sglist, num_sg, read);
	if (count < 1)
		return -EINVAL;
	pcr_dbg(pcr, "DMA mapping count: %d\n", count);

	err = rtsx_pci_dma_transfer(pcr, sglist, count, read, timeout);

	rtsx_pci_dma_unmap_sg(pcr, sglist, num_sg, read);

	return err;
}