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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 <>
* 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.
#ifndef __YNANDIF_H__
#define __YNANDIF_H__
#include "yaffs_guts.h"
struct ynandif_Geometry {
unsigned start_block;
unsigned end_block;
unsigned dataSize;
unsigned spareSize;
unsigned pagesPerBlock;
unsigned hasECC;
unsigned inband_tags;
unsigned useYaffs2;
int (*initialise)(struct yaffs_dev *dev);
int (*deinitialise)(struct yaffs_dev *dev);
int (*readChunk) (struct yaffs_dev *dev,
unsigned pageId,
unsigned char *data,
unsigned dataLength,
unsigned char *spare,
unsigned spareLength,
int *eccStatus);
/* ECC status is set to 0 for OK, 1 for fixed, -1 for unfixed. */
int (*writeChunk)(struct yaffs_dev *dev,
unsigned pageId,
const unsigned char *data,
unsigned dataLength,
const unsigned char *spare,
unsigned spareLength);
int (*eraseBlock)(struct yaffs_dev *dev, unsigned blockId);
int (*checkBlockOk)(struct yaffs_dev *dev, unsigned blockId);
int (*markBlockBad)(struct yaffs_dev *dev, unsigned blockId);
void *privateData;
struct yaffs_dev *
yaffs_add_dev_from_geometry(const YCHAR *name,
const struct ynandif_Geometry *geometry);