--- /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