1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2002-2011 Aleph One Ltd. 5*4882a593Smuzhiyun * for Toby Churchill Ltd and Brightstar Engineering 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Created by Charles Manning <charles@aleph1.co.uk> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * This program is free software; you can redistribute it and/or modify 10*4882a593Smuzhiyun * it under the terms of the GNU Lesser General Public License version 2.1 as 11*4882a593Smuzhiyun * published by the Free Software Foundation. 12*4882a593Smuzhiyun * 13*4882a593Smuzhiyun * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun #ifndef __YNANDIF_H__ 18*4882a593Smuzhiyun #define __YNANDIF_H__ 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #include "yaffs_guts.h" 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun struct ynandif_Geometry { 23*4882a593Smuzhiyun unsigned start_block; 24*4882a593Smuzhiyun unsigned end_block; 25*4882a593Smuzhiyun unsigned dataSize; 26*4882a593Smuzhiyun unsigned spareSize; 27*4882a593Smuzhiyun unsigned pagesPerBlock; 28*4882a593Smuzhiyun unsigned hasECC; 29*4882a593Smuzhiyun unsigned inband_tags; 30*4882a593Smuzhiyun unsigned useYaffs2; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun int (*initialise)(struct yaffs_dev *dev); 33*4882a593Smuzhiyun int (*deinitialise)(struct yaffs_dev *dev); 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun int (*readChunk) (struct yaffs_dev *dev, 36*4882a593Smuzhiyun unsigned pageId, 37*4882a593Smuzhiyun unsigned char *data, 38*4882a593Smuzhiyun unsigned dataLength, 39*4882a593Smuzhiyun unsigned char *spare, 40*4882a593Smuzhiyun unsigned spareLength, 41*4882a593Smuzhiyun int *eccStatus); 42*4882a593Smuzhiyun /* ECC status is set to 0 for OK, 1 for fixed, -1 for unfixed. */ 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun int (*writeChunk)(struct yaffs_dev *dev, 45*4882a593Smuzhiyun unsigned pageId, 46*4882a593Smuzhiyun const unsigned char *data, 47*4882a593Smuzhiyun unsigned dataLength, 48*4882a593Smuzhiyun const unsigned char *spare, 49*4882a593Smuzhiyun unsigned spareLength); 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun int (*eraseBlock)(struct yaffs_dev *dev, unsigned blockId); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun int (*checkBlockOk)(struct yaffs_dev *dev, unsigned blockId); 54*4882a593Smuzhiyun int (*markBlockBad)(struct yaffs_dev *dev, unsigned blockId); 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun void *privateData; 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun }; 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun struct yaffs_dev * 61*4882a593Smuzhiyun yaffs_add_dev_from_geometry(const YCHAR *name, 62*4882a593Smuzhiyun const struct ynandif_Geometry *geometry); 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun #endif 66