From ae51f41d14f548d494ac41e0d21137c5a4c3f59c Mon Sep 17 00:00:00 2001 From: Iru Cai Date: Wed, 30 Oct 2019 14:21:52 +0800 Subject: import the U-Boot code and make it compile --- include/circbuf.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 include/circbuf.h (limited to 'include/circbuf.h') diff --git a/include/circbuf.h b/include/circbuf.h new file mode 100644 index 0000000..e8ec127 --- /dev/null +++ b/include/circbuf.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2003 + * Gerry Hamel, geh@ti.com, Texas Instruments + */ + +#ifndef __CIRCBUF_H__ +#define __CIRCBUF_H__ + +typedef struct circbuf { + unsigned int size; /* current number of bytes held */ + unsigned int totalsize; /* number of bytes allocated */ + + char *top; /* pointer to current buffer start */ + char *tail; /* pointer to space for next element */ + + char *data; /* all data */ + char *end; /* end of data buffer */ +} circbuf_t; + +int buf_init (circbuf_t * buf, unsigned int size); +int buf_free (circbuf_t * buf); +int buf_pop (circbuf_t * buf, char *dest, unsigned int len); +int buf_push (circbuf_t * buf, const char *src, unsigned int len); + +#endif -- cgit v1.2.3