1*753ac610SCharles Manning /* 2*753ac610SCharles Manning * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 3*753ac610SCharles Manning * 4*753ac610SCharles Manning * Copyright (C) 2002-2011 Aleph One Ltd. 5*753ac610SCharles Manning * for Toby Churchill Ltd and Brightstar Engineering 6*753ac610SCharles Manning * 7*753ac610SCharles Manning * Created by Charles Manning <charles@aleph1.co.uk> 8*753ac610SCharles Manning * 9*753ac610SCharles Manning * This program is free software; you can redistribute it and/or modify 10*753ac610SCharles Manning * it under the terms of the GNU Lesser General Public License version 2.1 as 11*753ac610SCharles Manning * published by the Free Software Foundation. 12*753ac610SCharles Manning * 13*753ac610SCharles Manning * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. 14*753ac610SCharles Manning */ 15*753ac610SCharles Manning 16*753ac610SCharles Manning 17*753ac610SCharles Manning #ifndef __YNANDIF_H__ 18*753ac610SCharles Manning #define __YNANDIF_H__ 19*753ac610SCharles Manning 20*753ac610SCharles Manning #include "yaffs_guts.h" 21*753ac610SCharles Manning 22*753ac610SCharles Manning struct ynandif_Geometry { 23*753ac610SCharles Manning unsigned start_block; 24*753ac610SCharles Manning unsigned end_block; 25*753ac610SCharles Manning unsigned dataSize; 26*753ac610SCharles Manning unsigned spareSize; 27*753ac610SCharles Manning unsigned pagesPerBlock; 28*753ac610SCharles Manning unsigned hasECC; 29*753ac610SCharles Manning unsigned inband_tags; 30*753ac610SCharles Manning unsigned useYaffs2; 31*753ac610SCharles Manning 32*753ac610SCharles Manning int (*initialise)(struct yaffs_dev *dev); 33*753ac610SCharles Manning int (*deinitialise)(struct yaffs_dev *dev); 34*753ac610SCharles Manning 35*753ac610SCharles Manning int (*readChunk) (struct yaffs_dev *dev, 36*753ac610SCharles Manning unsigned pageId, 37*753ac610SCharles Manning unsigned char *data, 38*753ac610SCharles Manning unsigned dataLength, 39*753ac610SCharles Manning unsigned char *spare, 40*753ac610SCharles Manning unsigned spareLength, 41*753ac610SCharles Manning int *eccStatus); 42*753ac610SCharles Manning /* ECC status is set to 0 for OK, 1 for fixed, -1 for unfixed. */ 43*753ac610SCharles Manning 44*753ac610SCharles Manning int (*writeChunk)(struct yaffs_dev *dev, 45*753ac610SCharles Manning unsigned pageId, 46*753ac610SCharles Manning const unsigned char *data, 47*753ac610SCharles Manning unsigned dataLength, 48*753ac610SCharles Manning const unsigned char *spare, 49*753ac610SCharles Manning unsigned spareLength); 50*753ac610SCharles Manning 51*753ac610SCharles Manning int (*eraseBlock)(struct yaffs_dev *dev, unsigned blockId); 52*753ac610SCharles Manning 53*753ac610SCharles Manning int (*checkBlockOk)(struct yaffs_dev *dev, unsigned blockId); 54*753ac610SCharles Manning int (*markBlockBad)(struct yaffs_dev *dev, unsigned blockId); 55*753ac610SCharles Manning 56*753ac610SCharles Manning void *privateData; 57*753ac610SCharles Manning 58*753ac610SCharles Manning }; 59*753ac610SCharles Manning 60*753ac610SCharles Manning struct yaffs_dev * 61*753ac610SCharles Manning yaffs_add_dev_from_geometry(const YCHAR *name, 62*753ac610SCharles Manning const struct ynandif_Geometry *geometry); 63*753ac610SCharles Manning 64*753ac610SCharles Manning 65*753ac610SCharles Manning #endif 66