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/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2010 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 General Public License version 2 as
* published by the Free Software Foundation.
*/
#include "yaffs_packedtags1.h"
#include "yportenv.h"
void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t)
{
pt->chunk_id = t->chunk_id;
pt->serial_number = t->serial_number;
pt->n_bytes = t->n_bytes;
pt->obj_id = t->obj_id;
pt->ecc = 0;
pt->deleted = (t->is_deleted) ? 0 : 1;
pt->unusedStuff = 0;
pt->shouldBeFF = 0xFFFFFFFF;
}
void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt)
{
static const __u8 allFF[] =
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff };
if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) {
t->block_bad = 0;
if (pt->shouldBeFF != 0xFFFFFFFF)
t->block_bad = 1;
t->chunk_used = 1;
t->obj_id = pt->obj_id;
t->chunk_id = pt->chunk_id;
t->n_bytes = pt->n_bytes;
t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
t->is_deleted = (pt->deleted) ? 0 : 1;
t->serial_number = pt->serial_number;
} else {
memset(t, 0, sizeof(yaffs_ext_tags));
}
}
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