flight/pios/common/libraries/yaffs2/inc/yaffs_yaffs2.h

   1 /*
   2  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
   3  *
   4  * Copyright (C) 2002-2011 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 #ifndef __YAFFS_YAFFS2_H__
  17 #define __YAFFS_YAFFS2_H__
  18
  19 #include "yaffs_guts.h"
  20
  21 void yaffs_calc_oldest_dirty_seq(struct yaffs_dev *dev);
  22 void yaffs2_find_oldest_dirty_seq(struct yaffs_dev *dev);
  23 void yaffs2_clear_oldest_dirty_seq(struct yaffs_dev *dev,
  24                                    struct yaffs_block_info *bi);
  25 void yaffs2_update_oldest_dirty_seq(struct yaffs_dev *dev, unsigned block_no,
  26                                     struct yaffs_block_info *bi);
  27 int yaffs_block_ok_for_gc(struct yaffs_dev *dev, struct yaffs_block_info *bi);
  28 u32 yaffs2_find_refresh_block(struct yaffs_dev *dev);
  29 int yaffs2_checkpt_required(struct yaffs_dev *dev);
  30 int yaffs_calc_checkpt_blocks_required(struct yaffs_dev *dev);
  31
  32 void yaffs2_checkpt_invalidate(struct yaffs_dev *dev);
  33 int yaffs2_checkpt_save(struct yaffs_dev *dev);
  34 int yaffs2_checkpt_restore(struct yaffs_dev *dev);
  35
  36 int yaffs2_handle_hole(struct yaffs_obj *obj, Y_LOFF_T new_size);
  37 int yaffs2_scan_backwards(struct yaffs_dev *dev);
  38
  39 #endif