dev_mem.h

来自「基于Linux的ffmepg decoder」· C头文件 代码 · 共 16 行

#ifndef DEV_MEM_H
#define DEV_MEM_H

typedef struct virt_phy
{
  unsigned int * virt;
  unsigned long phy;
} virt_phy;
void *ioremap(unsigned long physaddr, unsigned size);
int iounmap(void *start, size_t length);
int dma_malloc(int size, unsigned long *phys, void **virt);
void dma_free(int size, unsigned long phys, void *virt);


#endif