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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.
*/
#ifndef __YNANDIF_H__
#define __YNANDIF_H__
#include "yaffs_guts.h"
typedef struct {
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;
} ynandif_Geometry;
struct yaffs_dev *
yaffs_add_dev_from_geometry(const YCHAR *name,
const ynandif_Geometry *geometry);
#if 0
int ynandif_WriteChunkWithTagsToNAND(struct yaffs_dev *dev,int nand_chunk,const u8 *data, const struct yaffs_ext_tags *tags);
int ynandif_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev,int nand_chunk, u8 *data, struct yaffs_ext_tags *tags);
int ynandif_EraseBlockInNAND(struct yaffs_dev *dev, int blockNumber);
int ynandif_InitialiseNAND(struct yaffs_dev *dev);
int ynandif_MarkNANDBlockBad(struct yaffs_dev *dev,int blockNumber);
int ynandif_QueryNANDBlock(struct yaffs_dev *dev, int block_no, enum yaffs_block_state *state, u32 *seq_number);
int ynandif_GetGeometry(struct yaffs_dev *dev, ynandif_Geometry *geometry);
#endif
#endif
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