ringbuf.h 457 B

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  1. #ifndef _RING_BUF_H_
  2. #define _RING_BUF_H_
  3. #include "pando_types.h"
  4. #include "typedef.h"
  5. typedef struct{
  6. U8* p_o; /**< Original pointer */
  7. U8* volatile p_r; /**< Read pointer */
  8. U8* volatile p_w; /**< Write pointer */
  9. volatile I32 fill_cnt; /**< Number of filled slots */
  10. I32 size; /**< Buffer size */
  11. }RINGBUF;
  12. I16 RINGBUF_Init(RINGBUF *r, U8* buf, I32 size);
  13. I16 RINGBUF_Put(RINGBUF *r, U8 c);
  14. I16 RINGBUF_Get(RINGBUF *r, U8* c);
  15. #endif