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maxxir_w
2019-02-12 07:43:25 +04:00
parent 6224395121
commit 090fcd1f0f
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Petit FatFs Module Source Files R0.03 (C)ChaN, 2014
FILES
pff.h Common include file for Petit FatFs and application module.
pff.c Petit FatFs module.
diskio.h Common include file for Petit FatFs and disk I/O module.
diskio.c Skeleton of low level disk I/O module.
integer.h Alternative type definitions for integer variables.
Low level disk I/O module is not included in this archive because the Petit
FatFs module is only a generic file system layer and not depend on any
specific storage device. You have to provide a low level disk I/O module that
written to control your storage device.
AGREEMENTS
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.
REVISION HISTORY
Jun 15, 2009 R0.01a First release (Branched from FatFs R0.07b)
Dec 14, 2009 R0.02 Added multiple code page support.
Added write funciton.
Changed stream read mode interface.
Dec 07,'2010 R0.02a Added some configuration options.
Fixed fails to open objects with DBCS character.
Jun 10, 2014 R0.03 Separated out configuration options to pffconf.h.
Added _USE_LCC option.
Added _FS_FAT16 option.

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/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for Petit FatFs (C)ChaN, 2014 */
/*-----------------------------------------------------------------------*/
#include "diskio.h"
/*-----------------------------------------------------------------------*/
/* Initialize Disk Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (void)
{
DSTATUS stat;
// Put your code here
return stat;
}
/*-----------------------------------------------------------------------*/
/* Read Partial Sector */
/*-----------------------------------------------------------------------*/
DRESULT disk_readp (
BYTE* buff, /* Pointer to the destination object */
DWORD sector, /* Sector number (LBA) */
UINT offset, /* Offset in the sector */
UINT count /* Byte count (bit15:destination) */
)
{
DRESULT res;
// Put your code here
return res;
}
/*-----------------------------------------------------------------------*/
/* Write Partial Sector */
/*-----------------------------------------------------------------------*/
DRESULT disk_writep (
BYTE* buff, /* Pointer to the data to be written, NULL:Initiate/Finalize write operation */
DWORD sc /* Sector number (LBA) or Number of bytes to send */
)
{
DRESULT res;
if (!buff) {
if (sc) {
// Initiate write process
} else {
// Finalize write process
}
} else {
// Send data to the disk
}
return res;
}

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/*-----------------------------------------------------------------------
/ PFF - Low level disk interface modlue include file (C)ChaN, 2014
/-----------------------------------------------------------------------*/
#ifndef _DISKIO_DEFINED
#define _DISKIO_DEFINED
#ifdef __cplusplus
extern "C" {
#endif
#include "integer.h"
/* Status of Disk Functions */
typedef BYTE DSTATUS;
/* Results of Disk Functions */
typedef enum {
RES_OK = 0, /* 0: Function succeeded */
RES_ERROR, /* 1: Disk error */
RES_NOTRDY, /* 2: Not ready */
RES_PARERR /* 3: Invalid parameter */
} DRESULT;
/*---------------------------------------*/
/* Prototypes for disk control functions */
DSTATUS disk_initialize (void);
DRESULT disk_readp (BYTE* buff, DWORD sector, UINT offser, UINT count);
DRESULT disk_writep (const BYTE* buff, DWORD sc);
#define STA_NOINIT 0x01 /* Drive not initialized */
#define STA_NODISK 0x02 /* No medium in the drive */
#ifdef __cplusplus
}
#endif
#endif /* _DISKIO_DEFINED */

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/*-------------------------------------------*/
/* Integer type definitions for FatFs module */
/*-------------------------------------------*/
#ifndef _FF_INTEGER
#define _FF_INTEGER
#ifdef _WIN32 /* FatFs development platform */
#include <windows.h>
#include <tchar.h>
#else /* Embedded platform */
/* This type MUST be 8 bit */
typedef unsigned char BYTE;
/* These types MUST be 16 bit */
typedef short SHORT;
typedef unsigned short WORD;
typedef unsigned short WCHAR;
/* These types MUST be 16 bit or 32 bit */
typedef int INT;
typedef unsigned int UINT;
/* These types MUST be 32 bit */
typedef long LONG;
typedef unsigned long DWORD;
#endif
#endif

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/*---------------------------------------------------------------------------/
/ 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 */

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/*---------------------------------------------------------------------------/
/ Petit FatFs - Configuration file R0.03 (C)ChaN, 2014
/---------------------------------------------------------------------------*/
#ifndef _PFFCONF
#define _PFFCONF 4004 /* Revision ID */
/*---------------------------------------------------------------------------/
/ Function Configurations
/---------------------------------------------------------------------------*/
#define _USE_READ 1 /* Enable pf_read() function */
#define _USE_DIR 0 /* Enable pf_opendir() and pf_readdir() function */
#define _USE_LSEEK 0 /* Enable pf_lseek() function */
#define _USE_WRITE 0 /* Enable pf_write() function */
#define _FS_FAT12 0 /* Enable FAT12 */
#define _FS_FAT16 1 /* Enable FAT16 */
#define _FS_FAT32 1 /* Enable FAT32 */
/*---------------------------------------------------------------------------/
/ Locale and Namespace Configurations
/---------------------------------------------------------------------------*/
#define _USE_LCC 0 /* Allow lower case characters for path name */
#define _CODE_PAGE 437
/* The _CODE_PAGE specifies the code page to be used on the target system.
/ SBCS code pages with _USE_LCC == 1 requiers a 128 byte of case conversion
/ table. This might occupy RAM on some platforms, e.g. avr-gcc.
/ When _USE_LCC == 0, _CODE_PAGE has no effect.
/
/ 932 - Japanese Shift_JIS (DBCS, OEM, Windows)
/ 936 - Simplified Chinese GBK (DBCS, OEM, Windows)
/ 949 - Korean (DBCS, OEM, Windows)
/ 950 - Traditional Chinese Big5 (DBCS, OEM, Windows)
/ 1250 - Central Europe (Windows)
/ 1251 - Cyrillic (Windows)
/ 1252 - Latin 1 (Windows)
/ 1253 - Greek (Windows)
/ 1254 - Turkish (Windows)
/ 1255 - Hebrew (Windows)
/ 1256 - Arabic (Windows)
/ 1257 - Baltic (Windows)
/ 1258 - Vietnam (OEM, Windows)
/ 437 - U.S. (OEM)
/ 720 - Arabic (OEM)
/ 737 - Greek (OEM)
/ 775 - Baltic (OEM)
/ 850 - Multilingual Latin 1 (OEM)
/ 858 - Multilingual Latin 1 + Euro (OEM)
/ 852 - Latin 2 (OEM)
/ 855 - Cyrillic (OEM)
/ 866 - Russian (OEM)
/ 857 - Turkish (OEM)
/ 862 - Hebrew (OEM)
/ 874 - Thai (OEM, Windows)
*/
/*---------------------------------------------------------------------------/
/ System Configurations
/---------------------------------------------------------------------------*/
#define _WORD_ACCESS 1
/* The _WORD_ACCESS option is an only platform dependent option. It defines
/ which access method is used to the word data on the FAT volume.
/
/ 0: Byte-by-byte access. Always compatible with all platforms.
/ 1: Word access. Do not choose this unless under both the following conditions.
/
/ * Address misaligned memory access is always allowed for ALL instructions.
/ * Byte order on the memory is little-endian.
/
/ If it is the case, _WORD_ACCESS can also be set to 1 to improve performance and
/ reduce code size. Following table shows an example of some processor types.
/
/ ARM7TDMI 0 ColdFire 0 V850E 0
/ Cortex-M3 0 Z80 0/1 V850ES 0/1
/ Cortex-M0 0 RX600(LE) 0/1 TLCS-870 0/1
/ AVR 0/1 RX600(BE) 0 TLCS-900 0/1
/ AVR32 0 RL78 0 R32C 0
/ PIC18 0/1 SH-2 0 M16C 0/1
/ PIC24 0 H8S 0 MSP430 0
/ PIC32 0 H8/300H 0 x86 0/1
*/
#endif /* _PFFCONF */