1/*
2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
3 *
4 * Copyright (C) 2002-2010 Aleph One Ltd.
5 *   for Toby Churchill Ltd and Brightstar Engineering
6 *
7 * Created by Charles Manning <charles@aleph1.co.uk>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU Lesser General Public License version 2.1 as
11 * published by the Free Software Foundation.
12 *
13 * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
14 */
15
16/* This is used to pack YAFFS2 tags, not YAFFS1tags. */
17
18#ifndef __YAFFS_PACKEDTAGS2_H__
19#define __YAFFS_PACKEDTAGS2_H__
20
21#include "yaffs_guts.h"
22#include "yaffs_ecc.h"
23
24typedef struct {
25	unsigned seq_number;
26	unsigned obj_id;
27	unsigned chunk_id;
28	unsigned n_bytes;
29} yaffs_PackedTags2TagsPart;
30
31typedef struct {
32	yaffs_PackedTags2TagsPart t;
33	yaffs_ECCOther ecc;
34} yaffs_PackedTags2;
35
36/* Full packed tags with ECC, used for oob tags */
37void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC);
38void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC);
39
40/* Only the tags part (no ECC for use with inband tags */
41void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ext_tags *t);
42void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, yaffs_PackedTags2TagsPart *pt);
43#endif
44