| 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 | |
| 24 | typedef struct { |
| 25 | unsigned seq_number; |
| 26 | unsigned obj_id; |
| 27 | unsigned chunk_id; |
| 28 | unsigned n_bytes; |
| 29 | } yaffs_PackedTags2TagsPart; |
| 30 | |
| 31 | typedef struct { |
| 32 | yaffs_PackedTags2TagsPart t; |
| 33 | yaffs_ECCOther ecc; |
| 34 | } yaffs_PackedTags2; |
| 35 | |
| 36 | /* Full packed tags with ECC, used for oob tags */ |
| 37 | void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC); |
| 38 | void 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 */ |
| 41 | void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ext_tags *t); |
| 42 | void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, yaffs_PackedTags2TagsPart *pt); |
| 43 | #endif |
| 44 | |
