+++ /dev/null
-/*---------------------------------------------------------------------------/\r
-/ Petit FatFs - FAT file system module include file R0.01a (C)ChaN, 2009\r
-/----------------------------------------------------------------------------/\r
-/ Petit FatFs module is an open source software to implement FAT file system to\r
-/ small embedded systems. This is a free software and is opened for education,\r
-/ research and commercial developments under license policy of following trems.\r
-/\r
-/ Copyright (C) 2009, ChaN, all right reserved.\r
-/\r
-/ * The Petit FatFs module is a free software and there is NO WARRANTY.\r
-/ * No restriction on use. You can use, modify and redistribute it for\r
-/ personal, non-profit or commercial use UNDER YOUR RESPONSIBILITY.\r
-/ * Redistributions of source code must retain the above copyright notice.\r
-/----------------------------------------------------------------------------*/\r
-\r
-#include "integer.h"\r
-\r
-/*---------------------------------------------------------------------------/\r
-/ Petit FatFs Configuration Options\r
-/\r
-/ CAUTION! Do not forget to make clean the project after any changes to\r
-/ the configuration options.\r
-/\r
-/----------------------------------------------------------------------------*/\r
-#ifndef _FATFS\r
-#define _FATFS\r
-\r
-#define _WORD_ACCESS 0\r
-/* The _WORD_ACCESS option defines which access method is used to the word\r
-/ data in the FAT structure.\r
-/\r
-/ 0: Byte-by-byte access. Always compatible with all platforms.\r
-/ 1: Word access. Do not choose this unless following condition is met.\r
-/\r
-/ When the byte order on the memory is big-endian or address miss-aligned\r
-/ word access results incorrect behavior, the _WORD_ACCESS must be set to 0.\r
-/ If it is not the case, the value can also be set to 1 to improve the\r
-/ performance and code efficiency. */\r
-\r
-\r
-#define _USE_DIR 0\r
-/* To enable pf_opendir and pf_readdir function, set _USE_DIR to 1. */\r
-\r
-\r
-#define _USE_LSEEK 0\r
-/* To enable pf_lseek function, set _USE_LSEEK to 1. */\r
-\r
-\r
-#define _FS_FAT32 0\r
-/* To enable FAT32 support, set _FS_FAT32 to 1. */\r
-\r
-\r
-/* End of configuration options. Do not change followings without care. */\r
-/*--------------------------------------------------------------------------*/\r
-\r
-\r
-#if _FS_FAT32\r
-#define CLUST DWORD\r
-#else\r
-#define CLUST WORD\r
-#endif\r
-\r
-\r
-/* File system object structure */\r
-\r
-typedef struct _FATFS_ {\r
- BYTE fs_type; /* FAT sub type */\r
- BYTE csize; /* Number of sectors per cluster */\r
- BYTE flag; /* File status flags */\r
- BYTE csect; /* File sector address in the cluster */\r
- WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */\r
- BYTE* buf; /* Pointer to the disk access buffer */\r
- CLUST max_clust; /* Maximum cluster# + 1. Number of clusters is max_clust - 2 */\r
- DWORD fatbase; /* FAT start sector */\r
- DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */\r
- DWORD database; /* Data start sector */\r
- DWORD fptr; /* File R/W pointer */\r
- DWORD fsize; /* File size */\r
- CLUST org_clust; /* File start cluster */\r
- CLUST curr_clust; /* File current cluster */\r
- DWORD dsect; /* File current data sector */\r
-} FATFS;\r
-\r
-\r
-\r
-/* Directory object structure */\r
-\r
-typedef struct _DIR_ {\r
- WORD index; /* Current read/write index number */\r
- BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */\r
- CLUST sclust; /* Table start cluster (0:Static table) */\r
- CLUST clust; /* Current cluster */\r
- DWORD sect; /* Current sector */\r
-} DIR;\r
-\r
-\r
-\r
-/* File status structure */\r
-\r
-typedef struct _FILINFO_ {\r
- DWORD fsize; /* File size */\r
- WORD fdate; /* Last modified date */\r
- WORD ftime; /* Last modified time */\r
- BYTE fattrib; /* Attribute */\r
- char fname[13]; /* File name */\r
-} FILINFO;\r
-\r
-\r
-\r
-/* File function return code (FRESULT) */\r
-\r
-typedef enum {\r
- FR_OK = 0, /* 0 */\r
- FR_DISK_ERR, /* 1 */\r
- FR_NOT_READY, /* 2 */\r
- FR_NO_FILE, /* 3 */\r
- FR_NO_PATH, /* 4 */\r
- FR_INVALID_NAME, /* 5 */\r
- FR_STREAM_ERR, /* 6 */\r
- FR_INVALID_OBJECT, /* 7 */\r
- FR_NOT_ENABLED, /* 8 */\r
- FR_NO_FILESYSTEM /* 9 */\r
-} FRESULT;\r
-\r
-\r
-\r
-/*--------------------------------------------------------------*/\r
-/* Petit FatFs module application interface */\r
-\r
-FRESULT pf_mount (FATFS*); /* Mount/Unmount a logical drive */\r
-FRESULT pf_open (const char*); /* Open a file */\r
-FRESULT pf_read (void*, WORD, WORD*); /* Read data from a file */\r
-FRESULT pf_lseek (DWORD); /* Move file pointer of a file object */\r
-FRESULT pf_opendir (DIR*, const char*); /* Open an existing directory */\r
-FRESULT pf_readdir (DIR*, FILINFO*); /* Read a directory item */\r
-\r
-\r
-\r
-/*--------------------------------------------------------------*/\r
-/* Flags and offset address */\r
-\r
-/* File status flag (FATFS.flag) */\r
-\r
-#define FA_READ 0x01\r
-#define FA_STREAM 0x40\r
-#define FA__ERROR 0x80\r
-\r
-\r
-/* FAT sub type (FATFS.fs_type) */\r
-\r
-#define FS_FAT12 1\r
-#define FS_FAT16 2\r
-#define FS_FAT32 3\r
-\r
-\r
-/* File attribute bits for directory entry */\r
-\r
-#define AM_RDO 0x01 /* Read only */\r
-#define AM_HID 0x02 /* Hidden */\r
-#define AM_SYS 0x04 /* System */\r
-#define AM_VOL 0x08 /* Volume label */\r
-#define AM_LFN 0x0F /* LFN entry */\r
-#define AM_DIR 0x10 /* Directory */\r
-#define AM_ARC 0x20 /* Archive */\r
-#define AM_MASK 0x3F /* Mask of defined bits */\r
-\r
-\r
-/* FatFs refers the members in the FAT structures with byte offset instead\r
-/ of structure member because there are incompatibility of the packing option\r
-/ between various compilers. */\r
-\r
-#define BS_jmpBoot 0\r
-#define BS_OEMName 3\r
-#define BPB_BytsPerSec 11\r
-#define BPB_SecPerClus 13\r
-#define BPB_RsvdSecCnt 14\r
-#define BPB_NumFATs 16\r
-#define BPB_RootEntCnt 17\r
-#define BPB_TotSec16 19\r
-#define BPB_Media 21\r
-#define BPB_FATSz16 22\r
-#define BPB_SecPerTrk 24\r
-#define BPB_NumHeads 26\r
-#define BPB_HiddSec 28\r
-#define BPB_TotSec32 32\r
-#define BS_55AA 510\r
-\r
-#define BS_DrvNum 36\r
-#define BS_BootSig 38\r
-#define BS_VolID 39\r
-#define BS_VolLab 43\r
-#define BS_FilSysType 54\r
-\r
-#define BPB_FATSz32 36\r
-#define BPB_ExtFlags 40\r
-#define BPB_FSVer 42\r
-#define BPB_RootClus 44\r
-#define BPB_FSInfo 48\r
-#define BPB_BkBootSec 50\r
-#define BS_DrvNum32 64\r
-#define BS_BootSig32 66\r
-#define BS_VolID32 67\r
-#define BS_VolLab32 71\r
-#define BS_FilSysType32 82\r
-\r
-#define MBR_Table 446\r
-\r
-#define DIR_Name 0\r
-#define DIR_Attr 11\r
-#define DIR_NTres 12\r
-#define DIR_CrtTime 14\r
-#define DIR_CrtDate 16\r
-#define DIR_FstClusHI 20\r
-#define DIR_WrtTime 22\r
-#define DIR_WrtDate 24\r
-#define DIR_FstClusLO 26\r
-#define DIR_FileSize 28\r
-\r
-\r
-\r
-/*--------------------------------*/\r
-/* Multi-byte word access macros */\r
-\r
-#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */\r
-#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))\r
-#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))\r
-#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)\r
-#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)\r
-#else /* Use byte-by-byte access to the FAT structure */\r
-#define LD_WORD(ptr) (WORD)(((WORD)*(BYTE*)((ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))\r
-#define LD_DWORD(ptr) (DWORD)(((DWORD)*(BYTE*)((ptr)+3)<<24)|((DWORD)*(BYTE*)((ptr)+2)<<16)|((WORD)*(BYTE*)((ptr)+1)<<8)|*(BYTE*)(ptr))\r
-#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8)\r
-#define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *(BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24)\r
-#endif\r
-\r
-\r
-#endif /* _FATFS */\r
projects / pub / lufa.git / blobdiff