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annotate packages/fs/yaffs/current/src/ecos-yaffs-nand.h @ 325:8e1210f7946a

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Update ecos yaffs layer for the preceding merge
author Ross Younger <wry@ecoscentric.com>
date Fri, 30 Oct 2009 17:18:05 +0000
parents 8678bc743892
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1 #ifndef CYGONCE_ECOS_YAFFS_NAND_H
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2 #define CYGONCE_ECOS_YAFFS_NAND_H
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3 //=============================================================================
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4 //
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5 // ecos-yaffs-nand.h
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6 //
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7 // Glue for YAFFS to the eCos NAND library
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8 //
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9 //=============================================================================
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10 // ####ECOSGPLCOPYRIGHTBEGIN####
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11 // -------------------------------------------
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12 // This file is part of eCos, the Embedded Configurable Operating System.
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13 // Copyright (C) 2009 eCosCentric Limited.
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14 //
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15 // eCos is free software; you can redistribute it and/or modify it under
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16 // the terms of the GNU General Public License as published by the Free
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17 // Software Foundation; either version 2 or (at your option) any later
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18 // version.
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19 //
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT
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21 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 // for more details.
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24 //
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25 // You should have received a copy of the GNU General Public License
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26 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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27 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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28 //
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29 // As a special exception, if other files instantiate templates or use
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30 // macros or inline functions from this file, or you compile this file
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31 // and link it with other works to produce a work based on this file,
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32 // this file does not by itself cause the resulting work to be covered by
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33 // the GNU General Public License. However the source code for this file
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34 // must still be made available in accordance with section (3) of the GNU
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35 // General Public License v2.
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36 //
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37 // This exception does not invalidate any other reasons why a work based
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38 // on this file might be covered by the GNU General Public License.
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39 // -------------------------------------------
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40 // ####ECOSGPLCOPYRIGHTEND####
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41 //=============================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): wry
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45 // Date: 2009-05-07
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46 //
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47 //####DESCRIPTIONEND####
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48 //=============================================================================
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49
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50 #include <cyg/nand/nand.h>
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51 #include "yaffs_guts.h" // extendedTags
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52 #include "devextras.h" // __u8 and __u32
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53
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54 // If writing a yaffs_PackedTags1, we store only its eight meaningful bytes
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55 #define PACKEDTAGS1_OOBSIZE 8
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56 #define PACKEDTAGS2_OOBSIZE(dev) (dev->noTagsECC ? \
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57 (unsigned)sizeof(yaffs_PackedTags2TagsPart) : \
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58 (unsigned)sizeof(yaffs_PackedTags2))
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59
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60 int eyaffs_eraseBlockInNAND (struct yaffs_DeviceStruct * dev, int blockInNAND);
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61 int eyaffs_initialiseNAND (struct yaffs_DeviceStruct * dev);
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62 // not mandatory:
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63 int eyaffs_deinitialiseNAND (struct yaffs_DeviceStruct * dev);
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64
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65 #ifdef CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS1
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66 int eyaffs_writeChunkToNAND(struct yaffs_DeviceStruct *dev,
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67 int chunkInNAND, const __u8 *data,
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68 const yaffs_Spare *spare);
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69 int eyaffs_readChunkFromNAND(struct yaffs_DeviceStruct *dev,
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70 int chunkInNAND, __u8 *data,
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71 yaffs_Spare *spare);
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72 #endif
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73
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74 int eyaffs_writeChunkWithTagsToNAND (struct yaffs_DeviceStruct * dev,
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75 int chunkInNAND, const __u8 * data,
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76 const yaffs_ExtendedTags * tags);
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77 int eyaffs_readChunkWithTagsFromNAND (struct yaffs_DeviceStruct * dev,
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78 int chunkInNAND, __u8 * data,
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79 yaffs_ExtendedTags * tags);
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80 int eyaffs_markNANDBlockBad (struct yaffs_DeviceStruct * dev, int blockNo);
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81 int eyaffs_queryNANDBlock (struct yaffs_DeviceStruct * dev, int blockNo,
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82 yaffs_BlockState * state, __u32 *sequenceNumber);
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83
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84 #endif //CYGONCE_ECOS_YAFFS_NAND_H