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24 lines
668 B
C
24 lines
668 B
C
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#ifndef _RING_BUF_H_
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#define _RING_BUF_H_
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#include <stdint.h>
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typedef struct{
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uint8_t* p_o; /**< Original pointer */
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uint8_t* volatile p_r; /**< Read pointer */
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uint8_t* volatile p_w; /**< Write pointer */
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volatile int32_t fill_cnt; /**< Number of filled slots */
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int32_t size; /**< Buffer size */
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int32_t block_size;
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}RINGBUF;
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int32_t rb_init(RINGBUF *r, uint8_t* buf, int32_t size, int32_t block_size);
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int32_t rb_put(RINGBUF *r, uint8_t* c);
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int32_t rb_get(RINGBUF *r, uint8_t* c);
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int32_t rb_available(RINGBUF *r);
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uint32_t rb_read(RINGBUF *r, uint8_t *buf, int len);
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uint32_t rb_write(RINGBUF *r, uint8_t *buf, int len);
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#endif
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