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dianjixz
33 lines
804 B
C
33 lines
804 B
C
/*
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* This file is part of the OpenMV project.
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*
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* Copyright (c) 2013-2021 Ibrahim Abdelkader <iabdalkader@openmv.io>
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* Copyright (c) 2013-2021 Kwabena W. Agyeman <kwagyeman@openmv.io>
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*
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* This work is licensed under the MIT license, see the file LICENSE for details.
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*
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* Simple Ring Buffer implementation.
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*/
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#ifndef __RING_BUFFER_H__
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#define __RING_BUFFER_H__
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define BUFFER_SIZE (1024)
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typedef struct ring_buffer {
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volatile uint32_t head;
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volatile uint32_t tail;
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uint8_t data[BUFFER_SIZE];
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} ring_buf_t;
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void ring_buf_init(ring_buf_t *buf);
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int ring_buf_empty(ring_buf_t *buf);
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void ring_buf_put(ring_buf_t *buf, uint8_t c);
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uint8_t ring_buf_get(ring_buf_t *buf);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __RING_BUFFER_H__ */
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