| Arve Hjønnevåg | 3de69a7 | 2010-05-18 20:35:30 -0700 | [diff] [blame] | 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 YAFFS1 tags, not YAFFS2 tags. */ |
| 17 | |
| 18 | #ifndef __YAFFS_PACKEDTAGS1_H__ |
| 19 | #define __YAFFS_PACKEDTAGS1_H__ |
| 20 | |
| 21 | #include "yaffs_guts.h" |
| 22 | |
| 23 | struct yaffs_packed_tags1 { |
| 24 | unsigned chunk_id:20; |
| 25 | unsigned serial_number:2; |
| 26 | unsigned n_bytes:10; |
| 27 | unsigned obj_id:18; |
| 28 | unsigned ecc:12; |
| 29 | unsigned deleted:1; |
| 30 | unsigned unused_stuff:1; |
| 31 | unsigned should_be_ff; |
| 32 | |
| 33 | }; |
| 34 | |
| 35 | void yaffs_pack_tags1(struct yaffs_packed_tags1 *pt, |
| 36 | const struct yaffs_ext_tags *t); |
| 37 | void yaffs_unpack_tags1(struct yaffs_ext_tags *t, |
| 38 | const struct yaffs_packed_tags1 *pt); |
| 39 | #endif |