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annotate packages/fs/yaffs/current/src/ecos-yaffs.h @ 311:16de60f90faa

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ecos-yaffs-nand.c: Correctly use ECC on YAFFS tags in yaffs2
author wry
date Fri, 18 Sep 2009 11:13:00 +0000
parents 9c8ff034abb0
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1 #ifndef CYGONCE_FS_ECOS_YAFFS_H
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2 #define CYGONCE_FS_ECOS_YAFFS_H
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3 //=============================================================================
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4 //
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5 // ecos-yaffs.h
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6 //
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7 // Options for the eCos interface to the YAFFS filesystem
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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: 2009-05-05
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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 <pkgconf/system.h>
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51 #include <pkgconf/fs_yaffs.h>
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52
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53 /* Options from yaffs moduleconfig.h */
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54 #define CONFIG_YAFFS_FS
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55
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56 #ifdef CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS1
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57 # define CONFIG_YAFFS_YAFFS1
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58 # define CONFIG_YAFFS_YAFFS2
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59 #else // CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS2
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60 # define CONFIG_YAFFS_NO_YAFFS1
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61 # define CONFIG_YAFFS_YAFFS2
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62 #endif
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63
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64 /* eCos does not currently supply DT_REG &c. and ATTR_MODE &c., so we'll
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65 * use YAFFS's: */
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66 #define CONFIG_YAFFS_PROVIDE_DEFS
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67
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68 /* Our NAND layer does ECC, so we won't use YAFFS's - but we do need
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69 * to use its internal ECC on the tags */
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70 //#define YAFFS_IGNORE_TAGS_ECC
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71 //#define CONFIG_YAFFS_DOES_ECC
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72 //#define CONFIG_YAFFS_ECC_WRONG_ORDER
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73
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74 /* Do not test whether chunks are erased before writing to them */
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75 #define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
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76
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77 /* Cache short names, taking more RAM, but faster look-ups */
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78 #ifdef CYGSEM_FS_YAFFS_CACHE_SHORT_NAMES
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79 #define CONFIG_YAFFS_SHORT_NAMES_IN_RAM
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80 #endif
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81
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82 /* The count of blocks to reserve for checkpointing */
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83 #define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10
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84
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85 /* Use older-style on-NAND data format with pageStatus byte?
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86 * This probably requires work in the NAND layer in order to support. */
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87 //#define CONFIG_YAFFS_9BYTE_TAGS
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88
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89 #endif /* CYGONCE_FS_ECOS_YAFFS_H */