1 /* 2 * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 3 * 4 * Copyright (C) 2002-2007 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 YAFFS1 tags, not YAFFS2 tags. */ 17 18 #ifndef __YAFFS_PACKEDTAGS1_H__ 19 #define __YAFFS_PACKEDTAGS1_H__ 20 21 #include "yaffs_guts.h" 22 23 typedef struct { 24 unsigned chunkId:20; 25 unsigned serialNumber:2; 26 unsigned byteCount:10; 27 unsigned objectId:18; 28 unsigned ecc:12; 29 unsigned deleted:1; 30 unsigned unusedStuff:1; 31 unsigned shouldBeFF; 32 33 } yaffs_PackedTags1; 34 35 void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t); 36 void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt); 37 #endif 38