u-boot-brain/fs/yaffs2/yaffs_packedtags2.h
Charles Manning 753ac61088 u-boot: Update yaffs2 file system
This patch updates the yaffs2 in u-boot to correspond to
git://www.aleph1.co.uk/yaffs2
commit id 9ee5d0643e559568dbe62215f76e0a7bd5a63d93

Signed-off-by: Charles Manning <cdhmanning@gmail.com>
2012-08-09 23:39:18 +02:00

48 lines
1.4 KiB
C

/*
* YAFFS: Yet another Flash File System . A NAND-flash specific file system.
*
* Copyright (C) 2002-2011 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1 as
* published by the Free Software Foundation.
*
* Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
*/
/* This is used to pack YAFFS2 tags, not YAFFS1tags. */
#ifndef __YAFFS_PACKEDTAGS2_H__
#define __YAFFS_PACKEDTAGS2_H__
#include "yaffs_guts.h"
#include "yaffs_ecc.h"
struct yaffs_packed_tags2_tags_only {
unsigned seq_number;
unsigned obj_id;
unsigned chunk_id;
unsigned n_bytes;
};
struct yaffs_packed_tags2 {
struct yaffs_packed_tags2_tags_only t;
struct yaffs_ecc_other ecc;
};
/* Full packed tags with ECC, used for oob tags */
void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt,
const struct yaffs_ext_tags *t, int tags_ecc);
void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt,
int tags_ecc);
/* Only the tags part (no ECC for use with inband tags */
void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *pt,
const struct yaffs_ext_tags *t);
void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t,
struct yaffs_packed_tags2_tags_only *pt);
#endif