Revision 0:621dafe47f1a, committed 2012-07-22

Comitter:

carlos_nascimento08

Date:

Sun Jul 22 20:25:28 2012 +0000

Commit message:

FatFileSystem
;

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FATDirHandle.h	Sun Jul 22 20:25:28 2012 +0000
@@ -0,0 +1,29 @@
+/* Copyright 2008 ARM Limited. All rights reserved. */
+
+#ifndef MBED_FATDIRHANDLE_H
+#define MBED_FATDIRHANDLE_H
+
+#include "DirHandle.h"
+#include "ff.h"
+
+namespace mbed {
+
+class FATDirHandle : public DirHandle {
+
+ public:
+    FATDirHandle(const FATFS_DIR &the_dir);
+    virtual int closedir();
+    virtual struct dirent *readdir();
+    virtual void rewinddir();
+    virtual off_t telldir();
+    virtual void seekdir(off_t location);
+
+ private:
+    FATFS_DIR dir;
+    struct dirent cur_entry;
+
+};
+
+}
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FATFileHandle.h	Sun Jul 22 20:25:28 2012 +0000
@@ -0,0 +1,33 @@
+/* mbed Microcontroller Library - FATFileHandle
+ * Copyright (c) 2008, sford
+ */
+
+#ifndef MBED_FATFILEHANDLE_H
+#define MBED_FATFILEHANDLE_H
+
+#include "FileHandle.h"
+#include "ff.h"
+
+namespace mbed {
+
+class FATFileHandle : public FileHandle {
+public:
+
+    FATFileHandle(FIL fh);
+    virtual int close();
+    virtual ssize_t write(const void* buffer, size_t length);
+    virtual ssize_t read(void* buffer, size_t length);
+    virtual int isatty();
+    virtual off_t lseek(off_t position, int whence);
+    virtual int fsync();
+    virtual off_t flen();
+
+protected:
+
+    FIL _fh;
+
+};
+
+}
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FATFileSystem.h	Sun Jul 22 20:25:28 2012 +0000
@@ -0,0 +1,61 @@
+/* mbed Microcontroller Library - FATFileSystem
+ * Copyright (c) 2008, sford
+ */
+
+/* Library: FATFileSystem.h
+ * A library of stuff to make a fat filesystem on top of a block device
+ */
+
+#ifndef MBED_FATFILESYSTEM_H
+#define MBED_FATFILESYSTEM_H
+
+#ifndef FFSDEBUG_ENABLED
+#define FFSDEBUG_ENABLED 0
+#endif
+
+#if FFSDEBUG_ENABLED
+#define FFSDEBUG(FMT, ...) printf(FMT, ##__VA_ARGS__)
+#else
+#define FFSDEBUG(FMT, ...)
+#endif
+
+#include "FileSystemLike.h"
+#include "FileHandle.h"
+#include "ff.h"
+#include "diskio.h"
+
+namespace mbed {
+/* Class: FATFileSystem
+ * The class itself
+ */
+class FATFileSystem : public FileSystemLike {
+public:
+
+    FATFileSystem(const char* n);
+    virtual ~FATFileSystem();
+    
+    /* Function: open
+       * open a file on the filesystem. never called directly
+       */
+    virtual FileHandle *open(const char* name, int flags);
+    virtual int remove(const char *filename);
+    virtual int format();
+        virtual DirHandle *opendir(const char *name);
+        virtual int mkdir(const char *name, mode_t mode);
+    
+    FATFS _fs;                                // Work area (file system object) for logical drive    
+    static FATFileSystem *_ffs[_DRIVES];    // FATFileSystem objects, as parallel to FatFs drives array
+    int _fsid;
+    
+    virtual int disk_initialize() { return 0; }
+    virtual int disk_status() { return 0; }
+    virtual int disk_read(char *buffer, int sector) = 0;
+    virtual int disk_write(const char *buffer, int sector) = 0;
+    virtual int disk_sync() { return 0; }
+    virtual int disk_sectors() = 0;
+     
+};
+    
+}
+
+#endif

Binary file LPC1768/FATFileSystem.ar has changed

Binary file LPC2368/FATFileSystem.ar has changed

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/diskio.h	Sun Jul 22 20:25:28 2012 +0000
@@ -0,0 +1,76 @@
+/*-----------------------------------------------------------------------
+/  Low level disk interface modlue include file  R0.06   (C)ChaN, 2007
+/-----------------------------------------------------------------------*/
+
+#ifndef _DISKIO
+
+#define _READONLY    0    /* 1: Read-only mode */
+#define _USE_IOCTL    1
+
+#include "integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Status of Disk Functions */
+typedef BYTE    DSTATUS;
+
+/* Results of Disk Functions */
+typedef enum {
+    RES_OK = 0,        /* 0: Successful */
+    RES_ERROR,        /* 1: R/W Error */
+    RES_WRPRT,        /* 2: Write Protected */
+    RES_NOTRDY,        /* 3: Not Ready */
+    RES_PARERR        /* 4: Invalid Parameter */
+} DRESULT;
+
+
+/*---------------------------------------*/
+/* Prototypes for disk control functions */
+
+DSTATUS disk_initialize (BYTE);
+DSTATUS disk_status (BYTE);
+DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE);
+#if    _READONLY == 0
+DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE);
+#endif
+DRESULT disk_ioctl (BYTE, BYTE, void*);
+void    disk_timerproc (void);
+
+#ifdef __cplusplus
+};
+#endif
+
+
+/* Disk Status Bits (DSTATUS) */
+
+#define STA_NOINIT        0x01    /* Drive not initialized */
+#define STA_NODISK        0x02    /* No medium in the drive */
+#define STA_PROTECT        0x04    /* Write protected */
+
+
+/* Command code for disk_ioctrl() */
+
+/* Generic command */
+#define CTRL_SYNC            0    /* Mandatory for read/write configuration */
+#define GET_SECTOR_COUNT    1    /* Mandatory for only f_mkfs() */
+#define GET_SECTOR_SIZE        2
+#define GET_BLOCK_SIZE        3    /* Mandatory for only f_mkfs() */
+#define CTRL_POWER            4
+#define CTRL_LOCK            5
+#define CTRL_EJECT            6
+/* MMC/SDC command */
+#define MMC_GET_TYPE        10
+#define MMC_GET_CSD            11
+#define MMC_GET_CID            12
+#define MMC_GET_OCR            13
+#define MMC_GET_SDSTAT        14
+/* ATA/CF command */
+#define ATA_GET_REV            20
+#define ATA_GET_MODEL        21
+#define ATA_GET_SN            22
+
+
+#define _DISKIO
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ff.h	Sun Jul 22 20:25:28 2012 +0000
@@ -0,0 +1,344 @@
+/*--------------------------------------------------------------------------/
+/  FatFs - FAT file system module include file  R0.06        (C)ChaN, 2008
+/---------------------------------------------------------------------------/
+/ FatFs module is an experimenal project to implement FAT file system to
+/ cheap microcontrollers. This is a free software and is opened for education,
+/ research and development under license policy of following trems.
+/
+/  Copyright (C) 2008, ChaN, all right reserved.
+/
+/ * The FatFs module is a free software and there is no warranty.
+/ * You can use, modify and/or redistribute it for personal, non-profit or
+/   commercial use without any restriction under your responsibility.
+/ * Redistributions of source code must retain the above copyright notice.
+/
+/---------------------------------------------------------------------------*/
+
+#ifndef _FATFS
+
+#define _MCU_ENDIAN        2
+/* The _MCU_ENDIAN defines which access method is used to the FAT structure.
+/  1: Enable word access.
+/  2: Disable word access and use byte-by-byte access instead.
+/  When the architectural byte order of the MCU is big-endian and/or address
+/  miss-aligned access results incorrect behavior, the _MCU_ENDIAN must be set to 2.
+/  If it is not the case, it can also be set to 1 for good code efficiency. */
+
+#define _FS_READONLY    0
+/* Setting _FS_READONLY to 1 defines read only configuration. This removes
+/  writing functions, f_write, f_sync, f_unlink, f_mkdir, f_chmod, f_rename,
+/  f_truncate and useless f_getfree. */
+
+#define _FS_MINIMIZE    0
+/* The _FS_MINIMIZE option defines minimization level to remove some functions.
+/  0: Full function.
+/  1: f_stat, f_getfree, f_unlink, f_mkdir, f_chmod, f_truncate and f_rename are removed.
+/  2: f_opendir and f_readdir are removed in addition to level 1.
+/  3: f_lseek is removed in addition to level 2. */
+
+#define    _USE_STRFUNC    0
+/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
+
+#define    _USE_MKFS    1
+/* When _USE_MKFS is set to 1 and _FS_READONLY is set to 0, f_mkfs function is
+/  enabled. */
+
+#define _DRIVES        4
+/* Number of logical drives to be used. This affects the size of internal table. */
+
+#define    _MULTI_PARTITION    0
+/* When _MULTI_PARTITION is set to 0, each logical drive is bound to same
+/  physical drive number and can mount only 1st primaly partition. When it is
+/  set to 1, each logical drive can mount a partition listed in Drives[]. */
+
+#define _USE_FSINFO    0
+/* To enable FSInfo support on FAT32 volume, set _USE_FSINFO to 1. */
+
+#define    _USE_SJIS    1
+/* When _USE_SJIS is set to 1, Shift-JIS code transparency is enabled, otherwise
+/  only US-ASCII(7bit) code can be accepted as file/directory name. */
+
+#define    _USE_NTFLAG    1
+/* When _USE_NTFLAG is set to 1, upper/lower case of the file name is preserved.
+/  Note that the files are always accessed in case insensitive. */
+
+
+#include "integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Definitions corresponds to multiple sector size (not tested) */
+#define    S_MAX_SIZ    512U            /* Do not change */
+#if S_MAX_SIZ > 512U
+#define    SS(fs)    ((fs)->s_size)
+#else
+#define    SS(fs)    512U
+#endif
+
+
+/* File system object structure */
+typedef struct _FATFS {
+    WORD    id;                /* File system mount ID */
+    WORD    n_rootdir;        /* Number of root directory entries */
+    DWORD    winsect;        /* Current sector appearing in the win[] */
+    DWORD    sects_fat;        /* Sectors per fat */
+    DWORD    max_clust;        /* Maximum cluster# + 1 */
+    DWORD    fatbase;        /* FAT start sector */
+    DWORD    dirbase;        /* Root directory start sector (cluster# for FAT32) */
+    DWORD    database;        /* Data start sector */
+#if !_FS_READONLY
+    DWORD    last_clust;        /* Last allocated cluster */
+    DWORD    free_clust;        /* Number of free clusters */
+#if _USE_FSINFO
+    DWORD    fsi_sector;        /* fsinfo sector */
+    BYTE    fsi_flag;        /* fsinfo dirty flag (1:must be written back) */
+    BYTE    pad2;
+#endif
+#endif
+    BYTE    fs_type;        /* FAT sub type */
+    BYTE    csize;            /* Number of sectors per cluster */
+#if S_MAX_SIZ > 512U
+    WORD    s_size;            /* Sector size */
+#endif
+    BYTE    n_fats;            /* Number of FAT copies */
+    BYTE    drive;            /* Physical drive number */
+    BYTE    winflag;        /* win[] dirty flag (1:must be written back) */
+    BYTE    pad1;
+    BYTE    win[S_MAX_SIZ];    /* Disk access window for Directory/FAT */
+} FATFS;
+
+
+/* Directory object structure */
+typedef struct _DIR {
+    WORD    id;            /* Owner file system mount ID */
+    WORD    index;        /* Current index */
+    FATFS*    fs;            /* Pointer to the owner file system object */
+    DWORD    sclust;        /* Start cluster */
+    DWORD    clust;        /* Current cluster */
+    DWORD    sect;        /* Current sector */
+} FATFS_DIR;
+
+
+/* File object structure */
+typedef struct _FIL {
+    WORD    id;                /* Owner file system mount ID */
+    BYTE    flag;            /* File status flags */
+    BYTE    csect;            /* Sector address in the cluster */
+    FATFS*    fs;                /* Pointer to the owner file system object */
+    DWORD    fptr;            /* File R/W pointer */
+    DWORD    fsize;            /* File size */
+    DWORD    org_clust;        /* File start cluster */
+    DWORD    curr_clust;        /* Current cluster */
+    DWORD    curr_sect;        /* Current sector */
+#if _FS_READONLY == 0
+    DWORD    dir_sect;        /* Sector containing the directory entry */
+    BYTE*    dir_ptr;        /* Ponter to the directory entry in the window */
+#endif
+    BYTE    buffer[S_MAX_SIZ];    /* File R/W buffer */
+} FIL;
+
+
+/* File status structure */
+typedef struct _FILINFO {
+    DWORD fsize;            /* Size */
+    WORD fdate;                /* Date */
+    WORD ftime;                /* Time */
+    BYTE fattrib;            /* Attribute */
+    char fname[8+1+3+1];    /* Name (8.3 format) */
+} FILINFO;
+
+
+
+/* Definitions corresponds to multi partition */
+
+#if _MULTI_PARTITION != 0    /* Multiple partition cfg */
+
+typedef struct _PARTITION {
+    BYTE pd;    /* Physical drive # (0-255) */
+    BYTE pt;    /* Partition # (0-3) */
+} PARTITION;
+extern
+const PARTITION Drives[];            /* Logical drive# to physical location conversion table */
+#define LD2PD(drv) (Drives[drv].pd)    /* Get physical drive# */
+#define LD2PT(drv) (Drives[drv].pt)    /* Get partition# */
+
+#else                        /* Single partition cfg */
+
+#define LD2PD(drv) (drv)        /* Physical drive# is equal to logical drive# */
+#define LD2PT(drv) 0            /* Always mounts the 1st partition */
+
+#endif
+
+
+/* File function return code (FRESULT) */
+
+typedef enum {
+    FR_OK = 0,            /* 0 */
+    FR_NOT_READY,        /* 1 */
+    FR_NO_FILE,            /* 2 */
+    FR_NO_PATH,            /* 3 */
+    FR_INVALID_NAME,    /* 4 */
+    FR_INVALID_DRIVE,    /* 5 */
+    FR_DENIED,            /* 6 */
+    FR_EXIST,            /* 7 */
+    FR_RW_ERROR,        /* 8 */
+    FR_WRITE_PROTECTED,    /* 9 */
+    FR_NOT_ENABLED,        /* 10 */
+    FR_NO_FILESYSTEM,    /* 11 */
+    FR_INVALID_OBJECT,    /* 12 */
+    FR_MKFS_ABORTED        /* 13 */
+} FRESULT;
+
+
+
+/*-----------------------------------------------------*/
+/* FatFs module application interface                  */
+
+FRESULT f_mount (BYTE, FATFS*);                        /* Mount/Unmount a logical drive */
+FRESULT f_open (FIL*, const char*, BYTE);            /* Open or create a file */
+FRESULT f_read (FIL*, void*, UINT, UINT*);            /* Read data from a file */
+FRESULT f_write (FIL*, const void*, UINT, UINT*);    /* Write data to a file */
+FRESULT f_lseek (FIL*, DWORD);                        /* Move file pointer of a file object */
+FRESULT f_close (FIL*);                                /* Close an open file object */
+FRESULT f_opendir (FATFS_DIR*, const char*);                /* Open an existing directory */
+FRESULT f_readdir (FATFS_DIR*, FILINFO*);                    /* Read a directory item */
+FRESULT f_stat (const char*, FILINFO*);                /* Get file status */
+FRESULT f_getfree (const char*, DWORD*, FATFS**);    /* Get number of free clusters on the drive */
+FRESULT f_truncate (FIL*);                            /* Truncate file */
+FRESULT f_sync (FIL*);                                /* Flush cached data of a writing file */
+FRESULT f_unlink (const char*);                        /* Delete an existing file or directory */
+FRESULT    f_mkdir (const char*);                        /* Create a new directory */
+FRESULT f_chmod (const char*, BYTE, BYTE);            /* Change file/dir attriburte */
+FRESULT f_utime (const char*, const FILINFO*);        /* Change file/dir timestamp */
+FRESULT f_rename (const char*, const char*);        /* Rename/Move a file or directory */
+FRESULT f_mkfs (BYTE, BYTE, WORD);                    /* Create a file system on the drive */
+#if _USE_STRFUNC
+#define feof(fp) ((fp)->fptr == (fp)->fsize)
+#define EOF -1
+int fputc (int, FIL*);                                /* Put a character to the file */
+int fputs (const char*, FIL*);                        /* Put a string to the file */
+int fprintf (FIL*, const char*, ...);                /* Put a formatted string to the file */
+char* fgets (char*, int, FIL*);                        /* Get a string from the file */
+#endif
+
+/* User defined function to give a current time to fatfs module */
+
+DWORD get_fattime (void);    /* 31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
+                            /* 15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
+
+
+
+/* File access control and file status flags (FIL.flag) */
+
+#define    FA_READ                0x01
+#define    FA_OPEN_EXISTING    0x00
+#if _FS_READONLY == 0
+#define    FA_WRITE            0x02
+#define    FA_CREATE_NEW        0x04
+#define    FA_CREATE_ALWAYS    0x08
+#define    FA_OPEN_ALWAYS        0x10
+#define FA__WRITTEN            0x20
+#define FA__DIRTY            0x40
+#endif
+#define FA__ERROR            0x80
+
+
+/* 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 */
+
+
+
+/* Offset of FAT structure members */
+
+#define BS_jmpBoot            0
+#define BS_OEMName            3
+#define BPB_BytsPerSec        11
+#define BPB_SecPerClus        13
+#define BPB_RsvdSecCnt        14
+#define BPB_NumFATs            16
+#define BPB_RootEntCnt        17
+#define BPB_TotSec16        19
+#define BPB_Media            21
+#define BPB_FATSz16            22
+#define BPB_SecPerTrk        24
+#define BPB_NumHeads        26
+#define BPB_HiddSec            28
+#define BPB_TotSec32        32
+#define BS_55AA                510
+
+#define BS_DrvNum            36
+#define BS_BootSig            38
+#define BS_VolID            39
+#define BS_VolLab            43
+#define BS_FilSysType        54
+
+#define BPB_FATSz32            36
+#define BPB_ExtFlags        40
+#define BPB_FSVer            42
+#define BPB_RootClus        44
+#define BPB_FSInfo            48
+#define BPB_BkBootSec        50
+#define BS_DrvNum32            64
+#define BS_BootSig32        66
+#define BS_VolID32            67
+#define BS_VolLab32            71
+#define BS_FilSysType32        82
+
+#define    FSI_LeadSig            0
+#define    FSI_StrucSig        484
+#define    FSI_Free_Count        488
+#define    FSI_Nxt_Free        492
+
+#define MBR_Table            446
+
+#define    DIR_Name            0
+#define    DIR_Attr            11
+#define    DIR_NTres            12
+#define    DIR_CrtTime            14
+#define    DIR_CrtDate            16
+#define    DIR_FstClusHI        20
+#define    DIR_WrtTime            22
+#define    DIR_WrtDate            24
+#define    DIR_FstClusLO        26
+#define    DIR_FileSize        28
+
+
+
+/* Multi-byte word access macros  */
+
+#if _MCU_ENDIAN == 1    /* Use word access */
+#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)
+#elif _MCU_ENDIAN == 2    /* Use byte-by-byte access */
+#define    LD_WORD(ptr)        (WORD)(((WORD)*(volatile BYTE*)((ptr)+1)<<8)|(WORD)*(volatile BYTE*)(ptr))
+#define    LD_DWORD(ptr)        (DWORD)(((DWORD)*(volatile BYTE*)((ptr)+3)<<24)|((DWORD)*(volatile BYTE*)((ptr)+2)<<16)|((WORD)*(volatile BYTE*)((ptr)+1)<<8)|*(volatile BYTE*)(ptr))
+#define    ST_WORD(ptr,val)    *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8)
+#define    ST_DWORD(ptr,val)    *(volatile BYTE*)(ptr)=(BYTE)(val); *(volatile BYTE*)((ptr)+1)=(BYTE)((WORD)(val)>>8); *(volatile BYTE*)((ptr)+2)=(BYTE)((DWORD)(val)>>16); *(volatile BYTE*)((ptr)+3)=(BYTE)((DWORD)(val)>>24)
+#else
+#error Do not forget to set _MCU_ENDIAN properly!
+#endif
+
+#ifdef __cplusplus
+};
+#endif
+
+#define _FATFS
+#endif /* _FATFS */

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/integer.h	Sun Jul 22 20:25:28 2012 +0000
@@ -0,0 +1,30 @@
+/*-------------------------------------------*/
+/* Integer type definitions for FatFs module */
+/*-------------------------------------------*/
+
+#ifndef _INTEGER
+
+/* These types must be 16-bit, 32-bit or larger integer */
+typedef int                INT;
+typedef unsigned int    UINT;
+
+/* These types must be 8-bit integer */
+typedef signed char        CHAR;
+typedef unsigned char    UCHAR;
+typedef unsigned char    BYTE;
+
+/* These types must be 16-bit integer */
+typedef short            SHORT;
+typedef unsigned short    USHORT;
+typedef unsigned short    WORD;
+
+/* These types must be 32-bit integer */
+typedef long            LONG;
+typedef unsigned long    ULONG;
+typedef unsigned long    DWORD;
+
+/* Boolean type */
+typedef enum { FALSE = 0, TRUE } BOOL;
+
+#define _INTEGER
+#endif