C++ (Cpp) vb2_mmap_pfn_range示例

示例#1

文件： videobuf2-dma-contig.c 项目： 0xroot/Blackphone-BP1-Kernel

static int vb2_dma_contig_mmap(void *buf_priv, struct vm_area_struct *vma)
{
	struct vb2_dc_buf *buf = buf_priv;

	if (!buf) {
		printk(KERN_ERR "No buffer to map\n");
		return -EINVAL;
	}

	return vb2_mmap_pfn_range(vma, buf->dma_addr, buf->size,
				  &vb2_common_vm_ops, &buf->handler);
}

示例#2

文件： ovisp-videobuf.c 项目： ykli/misc

static int ovisp_vb2_mmap(void *buf_priv, struct vm_area_struct *vma)
{
	struct vb2_dc_buf *buf = buf_priv;
	struct vb2_dc_conf *conf = buf->conf;

	if (!buf) {
		printk(KERN_ERR "No buffer to map\n");
		return -EINVAL;
	}

	return vb2_mmap_pfn_range(vma, conf->paddr, conf->size,
				  &vb2_common_vm_ops, &buf->handler);
}