diff options
Diffstat (limited to '3rdparty/petitfs-0.03/src/pff.h')
| -rw-r--r-- | 3rdparty/petitfs-0.03/src/pff.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/3rdparty/petitfs-0.03/src/pff.h b/3rdparty/petitfs-0.03/src/pff.h new file mode 100644 index 00000000..4b55be40 --- /dev/null +++ b/3rdparty/petitfs-0.03/src/pff.h @@ -0,0 +1,159 @@ +/*---------------------------------------------------------------------------/ +/ Petit FatFs - FAT file system module include file R0.03 (C)ChaN, 2014 +/----------------------------------------------------------------------------/ +/ Petit FatFs module is an open source software to implement FAT file system to +/ small embedded systems. This is a free software and is opened for education, +/ research and commercial developments under license policy of following trems. +/ +/ Copyright (C) 2014, ChaN, all right reserved. +/ +/ * The Petit FatFs module is a free software and there is NO WARRANTY. +/ * No restriction on use. You can use, modify and redistribute it for +/ personal, non-profit or commercial use UNDER YOUR RESPONSIBILITY. +/ * Redistributions of source code must retain the above copyright notice. +/ +/----------------------------------------------------------------------------*/ + +#ifndef _PFATFS +#define _PFATFS 4004 /* Revision ID */ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "integer.h" +#include "pffconf.h" + +#if _PFATFS != _PFFCONF +#error Wrong configuration file (pffconf.h). +#endif + +#if _FS_FAT32 +#define CLUST DWORD +#else +#define CLUST WORD +#endif + + +/* File system object structure */ + +typedef struct { + BYTE fs_type; /* FAT sub type */ + BYTE flag; /* File status flags */ + BYTE csize; /* Number of sectors per cluster */ + BYTE pad1; + WORD n_rootdir; /* Number of root directory entries (0 on FAT32) */ + CLUST n_fatent; /* Number of FAT entries (= number of clusters + 2) */ + DWORD fatbase; /* FAT start sector */ + DWORD dirbase; /* Root directory start sector (Cluster# on FAT32) */ + DWORD database; /* Data start sector */ + DWORD fptr; /* File R/W pointer */ + DWORD fsize; /* File size */ + CLUST org_clust; /* File start cluster */ + CLUST curr_clust; /* File current cluster */ + DWORD dsect; /* File current data sector */ +} FATFS; + + + +/* Directory object structure */ + +typedef struct { + WORD index; /* Current read/write index number */ + BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */ + CLUST sclust; /* Table start cluster (0:Static table) */ + CLUST clust; /* Current cluster */ + DWORD sect; /* Current sector */ +} DIR; + + + +/* File status structure */ + +typedef struct { + DWORD fsize; /* File size */ + WORD fdate; /* Last modified date */ + WORD ftime; /* Last modified time */ + BYTE fattrib; /* Attribute */ + char fname[13]; /* File name */ +} FILINFO; + + + +/* File function return code (FRESULT) */ + +typedef enum { + FR_OK = 0, /* 0 */ + FR_DISK_ERR, /* 1 */ + FR_NOT_READY, /* 2 */ + FR_NO_FILE, /* 3 */ + FR_NOT_OPENED, /* 4 */ + FR_NOT_ENABLED, /* 5 */ + FR_NO_FILESYSTEM /* 6 */ +} FRESULT; + + + +/*--------------------------------------------------------------*/ +/* Petit FatFs module application interface */ + +FRESULT pf_mount (FATFS* fs); /* Mount/Unmount a logical drive */ +FRESULT pf_open (const char* path); /* Open a file */ +FRESULT pf_read (void* buff, UINT btr, UINT* br); /* Read data from the open file */ +FRESULT pf_write (const void* buff, UINT btw, UINT* bw); /* Write data to the open file */ +FRESULT pf_lseek (DWORD ofs); /* Move file pointer of the open file */ +FRESULT pf_opendir (DIR* dj, const char* path); /* Open a directory */ +FRESULT pf_readdir (DIR* dj, FILINFO* fno); /* Read a directory item from the open directory */ + + + +/*--------------------------------------------------------------*/ +/* Flags and offset address */ + +/* File status flag (FATFS.flag) */ + +#define FA_OPENED 0x01 +#define FA_WPRT 0x02 +#define FA__WIP 0x40 + + +/* FAT sub type (FATFS.fs_type) */ + +#define FS_FAT12 1 +#define FS_FAT16 2 +#define FS_FAT32 3 + + +/* File attribute bits for directory entry */ + +#define AM_RDO 0x01 /* Read only */ +#define AM_HID 0x02 /* Hidden */ +#define AM_SYS 0x04 /* System */ +#define AM_VOL 0x08 /* Volume label */ +#define AM_LFN 0x0F /* LFN entry */ +#define AM_DIR 0x10 /* Directory */ +#define AM_ARC 0x20 /* Archive */ +#define AM_MASK 0x3F /* Mask of defined bits */ + + +/*--------------------------------*/ +/* Multi-byte word access macros */ + +#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */ +#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr)) +#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr)) +#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val) +#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val) +#else /* Use byte-by-byte access to the FAT structure */ +#define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr)) +#define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr)) +#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8) +#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) +#endif + + +#ifdef __cplusplus +} +#endif + +#endif /* _PFATFS */ |