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fs/yaffs2/yaffs_packedtags2.h
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/* * 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 |