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- #ifndef __CCCI_RINGBUF_H__
- #define __CCCI_RINGBUF_H__
- #include "ccci_core.h"
- typedef enum {
- CCCI_RINGBUF_OK = 0,
- CCCI_RINGBUF_PARAM_ERR,
- CCCI_RINGBUF_NOT_ENOUGH,
- CCCI_RINGBUF_BAD_HEADER,
- CCCI_RINGBUF_BAD_FOOTER,
- CCCI_RINGBUF_NOT_COMPLETE,
- CCCI_RINGBUF_EMPTY,
- } ccci_ringbuf_error;
- struct ccci_ringbuf {
- struct {
- unsigned int read;
- unsigned int write;
- unsigned int length;
- } rx_control, tx_control;
- unsigned char buffer[0];
- };
- #define CCCI_RINGBUF_CTL_LEN (8+sizeof(struct ccci_ringbuf)+8)
- int ccci_ringbuf_readable(int md_id, struct ccci_ringbuf *ringbuf);
- int ccci_ringbuf_writeable(int md_id, struct ccci_ringbuf *ringbuf, unsigned int write_size);
- struct ccci_ringbuf *ccci_create_ringbuf(int md_id, unsigned char *buf, int buf_size, int rx_size, int tx_size);
- int ccci_ringbuf_read(int md_id, struct ccci_ringbuf *ringbuf, unsigned char *buf, int read_size);
- int ccci_ringbuf_write(int md_id, struct ccci_ringbuf *ringbuf, unsigned char *data, int data_len);
- void ccci_ringbuf_move_rpointer(int md_id, struct ccci_ringbuf *ringbuf, int read_size);
- void ccci_ringbuf_reset(int md_id, struct ccci_ringbuf *ringbuf, int dir);
- #endif /* __CCCI_RINGBUF_H__ */
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