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added free FatFs Module files (c) ChaN

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This commit is contained in:
Markus Fröschle
2012-12-04 09:17:00 +00:00
parent 0666d4f856
commit 33d0e175d1
7 changed files with 5412 additions and 0 deletions
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51
SD_CARD/BaS_gcc/sources/diskio.h Normal file
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/*-----------------------------------------------------------------------
/ Low level disk interface modlue include file (C)ChaN, 2009
/-----------------------------------------------------------------------*/
#ifndef _DISKIO
#define _DISKIO
#include "integer.h"
/* 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 */
int assign_drives (int, int);
DSTATUS disk_initialize (BYTE);
DSTATUS disk_status (BYTE);
DRESULT disk_read (BYTE, BYTE*, DWORD, BYTE);
DRESULT disk_write (BYTE, const BYTE*, DWORD, BYTE);
DRESULT disk_ioctl (BYTE, BYTE, void*);
/* 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 fucntion */
/* Generic command (mandatory for FatFs) */
#define CTRL_SYNC 0 /* Flush disk cache (for write functions) */
#define GET_SECTOR_COUNT 1 /* Get media size (for only f_mkfs()) */
#define GET_SECTOR_SIZE 2 /* Get sector size (for multiple sector size (_MAX_SS >= 1024)) */
#define GET_BLOCK_SIZE 3 /* Get erase block size (for only f_mkfs()) */
#endif

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/*---------------------------------------------------------------------------/
/ FatFs - FAT file system module include file R0.09a (C)ChaN, 2012
/----------------------------------------------------------------------------/
/ FatFs module is a generic FAT file system module for small embedded systems.
/ This is a free software that opened for education, research and commercial
/ developments under license policy of following terms.
/
/ Copyright (C) 2012, ChaN, all right reserved.
/
/ * The 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 product UNDER YOUR RESPONSIBILITY.
/ * Redistributions of source code must retain the above copyright notice.
/
/----------------------------------------------------------------------------*/
#ifndef _FATFS
#define _FATFS 4004 /* Revision ID */
#ifdef __cplusplus
extern "C" {
#endif
#include "integer.h" /* Basic integer types */
#include "ffconf.h" /* FatFs configuration options */
#if _FATFS != _FFCONF
#error Wrong configuration file (ffconf.h).
#endif
/* Definitions of volume management */
#if _MULTI_PARTITION /* Multiple partition configuration */
typedef struct {
BYTE pd; /* Physical drive number */
BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
} PARTITION;
extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
#define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
#define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
#else /* Single partition configuration */
#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
#define LD2PT(vol) 0 /* Always mounts the 1st partition or in SFD */
#endif
/* Type of path name strings on FatFs API */
#if _LFN_UNICODE /* Unicode string */
#if !_USE_LFN
#error _LFN_UNICODE must be 0 in non-LFN cfg.
#endif
#ifndef _INC_TCHAR
typedef WCHAR TCHAR;
#define _T(x) L ## x
#define _TEXT(x) L ## x
#endif
#else /* ANSI/OEM string */
#ifndef _INC_TCHAR
typedef char TCHAR;
#define _T(x) x
#define _TEXT(x) x
#endif
#endif
/* File system object structure (FATFS) */
typedef struct {
BYTE fs_type; /* FAT sub-type (0:Not mounted) */
BYTE drv; /* Physical drive number */
BYTE csize; /* Sectors per cluster (1,2,4...128) */
BYTE n_fats; /* Number of FAT copies (1,2) */
BYTE wflag; /* win[] dirty flag (1:must be written back) */
BYTE fsi_flag; /* fsinfo dirty flag (1:must be written back) */
WORD id; /* File system mount ID */
WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
#if _MAX_SS != 512
WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
#endif
#if _FS_REENTRANT
_SYNC_t sobj; /* Identifier of sync object */
#endif
#if !_FS_READONLY
DWORD last_clust; /* Last allocated cluster */
DWORD free_clust; /* Number of free clusters */
DWORD fsi_sector; /* fsinfo sector (FAT32) */
#endif
#if _FS_RPATH
DWORD cdir; /* Current directory start cluster (0:root) */
#endif
DWORD n_fatent; /* Number of FAT entries (= number of clusters + 2) */
DWORD fsize; /* Sectors per FAT */
DWORD fatbase; /* FAT start sector */
DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
DWORD database; /* Data start sector */
DWORD winsect; /* Current sector appearing in the win[] */
BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and Data on tiny cfg) */
} FATFS;
/* File object structure (FIL) */
typedef struct {
FATFS* fs; /* Pointer to the related file system object */
WORD id; /* File system mount ID of the related file system object */
BYTE flag; /* File status flags */
BYTE pad1;
DWORD fptr; /* File read/write pointer (0ed on file open) */
DWORD fsize; /* File size */
DWORD sclust; /* File data start cluster (0:no data cluster, always 0 when fsize is 0) */
DWORD clust; /* Current cluster of fpter */
DWORD dsect; /* Current data sector of fpter */
#if !_FS_READONLY
DWORD dir_sect; /* Sector containing the directory entry */
BYTE* dir_ptr; /* Pointer to the directory entry in the window */
#endif
#if _USE_FASTSEEK
DWORD* cltbl; /* Pointer to the cluster link map table (null on file open) */
#endif
#if _FS_LOCK
UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
#endif
#if !_FS_TINY
BYTE buf[_MAX_SS]; /* File data read/write buffer */
#endif
} FIL;
/* Directory object structure (DIR) */
typedef struct {
FATFS* fs; /* Pointer to the owner file system object */
WORD id; /* Owner file system mount ID */
WORD index; /* Current read/write index number */
DWORD sclust; /* Table start cluster (0:Root dir) */
DWORD clust; /* Current cluster */
DWORD sect; /* Current sector */
BYTE* dir; /* Pointer to the current SFN entry in the win[] */
BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
#if _USE_LFN
WCHAR* lfn; /* Pointer to the LFN working buffer */
WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
#endif
} DIR;
/* File status structure (FILINFO) */
typedef struct {
DWORD fsize; /* File size */
WORD fdate; /* Last modified date */
WORD ftime; /* Last modified time */
BYTE fattrib; /* Attribute */
TCHAR fname[13]; /* Short file name (8.3 format) */
#if _USE_LFN
TCHAR* lfname; /* Pointer to the LFN buffer */
UINT lfsize; /* Size of LFN buffer in TCHAR */
#endif
} FILINFO;
/* File function return code (FRESULT) */
typedef enum {
FR_OK = 0, /* (0) Succeeded */
FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
FR_INT_ERR, /* (2) Assertion failed */
FR_NOT_READY, /* (3) The physical drive cannot work */
FR_NO_FILE, /* (4) Could not find the file */
FR_NO_PATH, /* (5) Could not find the path */
FR_INVALID_NAME, /* (6) The path name format is invalid */
FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
FR_EXIST, /* (8) Access denied due to prohibited access */
FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
FR_NOT_ENABLED, /* (12) The volume has no work area */
FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_SHARE */
FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
} FRESULT;
/*--------------------------------------------------------------*/
/* FatFs module application interface */
FRESULT f_mount (BYTE, FATFS*); /* Mount/Unmount a logical drive */
FRESULT f_open (FIL*, const TCHAR*, BYTE); /* Open or create a file */
FRESULT f_read (FIL*, void*, UINT, UINT*); /* Read data from 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 (DIR*, const TCHAR*); /* Open an existing directory */
FRESULT f_readdir (DIR*, FILINFO*); /* Read a directory item */
FRESULT f_stat (const TCHAR*, FILINFO*); /* Get file status */
FRESULT f_write (FIL*, const void*, UINT, UINT*); /* Write data to a file */
FRESULT f_getfree (const TCHAR*, 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 TCHAR*); /* Delete an existing file or directory */
FRESULT f_mkdir (const TCHAR*); /* Create a new directory */
FRESULT f_chmod (const TCHAR*, BYTE, BYTE); /* Change attribute of the file/dir */
FRESULT f_utime (const TCHAR*, const FILINFO*); /* Change times-tamp of the file/dir */
FRESULT f_rename (const TCHAR*, const TCHAR*); /* Rename/Move a file or directory */
FRESULT f_chdrive (BYTE); /* Change current drive */
FRESULT f_chdir (const TCHAR*); /* Change current directory */
FRESULT f_getcwd (TCHAR*, UINT); /* Get current directory */
FRESULT f_forward (FIL*, UINT(*)(const BYTE*,UINT), UINT, UINT*); /* Forward data to the stream */
FRESULT f_mkfs (BYTE, BYTE, UINT); /* Create a file system on the drive */
FRESULT f_fdisk (BYTE, const DWORD[], void*); /* Divide a physical drive into some partitions */
int f_putc (TCHAR, FIL*); /* Put a character to the file */
int f_puts (const TCHAR*, FIL*); /* Put a string to the file */
int f_printf (FIL*, const TCHAR*, ...); /* Put a formatted string to the file */
TCHAR* f_gets (TCHAR*, int, FIL*); /* Get a string from the file */
#define f_eof(fp) (((fp)->fptr == (fp)->fsize) ? 1 : 0)
#define f_error(fp) (((fp)->flag & FA__ERROR) ? 1 : 0)
#define f_tell(fp) ((fp)->fptr)
#define f_size(fp) ((fp)->fsize)
#ifndef EOF
#define EOF (-1)
#endif
/*--------------------------------------------------------------*/
/* Additional user defined functions */
/* RTC function */
#if !_FS_READONLY
DWORD get_fattime (void);
#endif
/* Unicode support functions */
#if _USE_LFN /* Unicode - OEM code conversion */
WCHAR ff_convert (WCHAR, UINT); /* OEM-Unicode bidirectional conversion */
WCHAR ff_wtoupper (WCHAR); /* Unicode upper-case conversion */
#if _USE_LFN == 3 /* Memory functions */
void* ff_memalloc (UINT); /* Allocate memory block */
void ff_memfree (void*); /* Free memory block */
#endif
#endif
/* Sync functions */
#if _FS_REENTRANT
int ff_cre_syncobj (BYTE, _SYNC_t*);/* Create a sync object */
int ff_req_grant (_SYNC_t); /* Lock sync object */
void ff_rel_grant (_SYNC_t); /* Unlock sync object */
int ff_del_syncobj (_SYNC_t); /* Delete a sync object */
#endif
/*--------------------------------------------------------------*/
/* Flags and offset address */
/* File access control and file status flags (FIL.flag) */
#define FA_READ 0x01
#define FA_OPEN_EXISTING 0x00
#define FA__ERROR 0x80
#if !_FS_READONLY
#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
/* 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 */
/* Fast seek feature */
#define CREATE_LINKMAP 0xFFFFFFFF
/*--------------------------------*/
/* 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 /* _FATFS */

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SD_CARD/BaS_gcc/sources/ffconf.h Normal file
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/*---------------------------------------------------------------------------/
/ FatFs - FAT file system module configuration file R0.09a (C)ChaN, 2012
/----------------------------------------------------------------------------/
/
/ CAUTION! Do not forget to make clean the project after any changes to
/ the configuration options.
/
/----------------------------------------------------------------------------*/
#ifndef _FFCONF
#define _FFCONF 4004 /* Revision ID */
/*---------------------------------------------------------------------------/
/ Functions and Buffer Configurations
/----------------------------------------------------------------------------*/
#define _FS_TINY 0 /* 0:Normal or 1:Tiny */
/* When _FS_TINY is set to 1, FatFs uses the sector buffer in the file system
/ object instead of the sector buffer in the individual file object for file
/ data transfer. This reduces memory consumption 512 bytes each file object. */
#define _FS_READONLY 0 /* 0:Read/Write or 1:Read only */
/* 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 /* 0 to 3 */
/* 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 1.
/ 3: f_lseek is removed in addition to 2. */
#define _USE_STRFUNC 0 /* 0:Disable or 1-2:Enable */
/* To enable string functions, set _USE_STRFUNC to 1 or 2. */
#define _USE_MKFS 0 /* 0:Disable or 1:Enable */
/* To enable f_mkfs function, set _USE_MKFS to 1 and set _FS_READONLY to 0 */
#define _USE_FORWARD 0 /* 0:Disable or 1:Enable */
/* To enable f_forward function, set _USE_FORWARD to 1 and set _FS_TINY to 1. */
#define _USE_FASTSEEK 0 /* 0:Disable or 1:Enable */
/* To enable fast seek feature, set _USE_FASTSEEK to 1. */
/*---------------------------------------------------------------------------/
/ Locale and Namespace Configurations
/----------------------------------------------------------------------------*/
#define _CODE_PAGE 932
/* The _CODE_PAGE specifies the OEM code page to be used on the target system.
/ Incorrect setting of the code page can cause a file open failure.
/
/ 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)
/ 1 - ASCII only (Valid for non LFN cfg.)
*/
#define _USE_LFN 0 /* 0 to 3 */
#define _MAX_LFN 255 /* Maximum LFN length to handle (12 to 255) */
/* The _USE_LFN option switches the LFN support.
/
/ 0: Disable LFN feature. _MAX_LFN and _LFN_UNICODE have no effect.
/ 1: Enable LFN with static working buffer on the BSS. Always NOT reentrant.
/ 2: Enable LFN with dynamic working buffer on the STACK.
/ 3: Enable LFN with dynamic working buffer on the HEAP.
/
/ The LFN working buffer occupies (_MAX_LFN + 1) * 2 bytes. To enable LFN,
/ Unicode handling functions ff_convert() and ff_wtoupper() must be added
/ to the project. When enable to use heap, memory control functions
/ ff_memalloc() and ff_memfree() must be added to the project. */
#define _LFN_UNICODE 0 /* 0:ANSI/OEM or 1:Unicode */
/* To switch the character code set on FatFs API to Unicode,
/ enable LFN feature and set _LFN_UNICODE to 1. */
#define _FS_RPATH 0 /* 0 to 2 */
/* The _FS_RPATH option configures relative path feature.
/
/ 0: Disable relative path feature and remove related functions.
/ 1: Enable relative path. f_chdrive() and f_chdir() are available.
/ 2: f_getcwd() is available in addition to 1.
/
/ Note that output of the f_readdir fnction is affected by this option. */
/*---------------------------------------------------------------------------/
/ Physical Drive Configurations
/----------------------------------------------------------------------------*/
#define _VOLUMES 1
/* Number of volumes (logical drives) to be used. */
#define _MAX_SS 512 /* 512, 1024, 2048 or 4096 */
/* Maximum sector size to be handled.
/ Always set 512 for memory card and hard disk but a larger value may be
/ required for on-board flash memory, floppy disk and optical disk.
/ When _MAX_SS is larger than 512, it configures FatFs to variable sector size
/ and GET_SECTOR_SIZE command must be implememted to the disk_ioctl function. */
#define _MULTI_PARTITION 0 /* 0:Single partition, 1/2:Enable multiple partition */
/* When set to 0, each volume is bound to the same physical drive number and
/ it can mount only first primaly partition. When it is set to 1, each volume
/ is tied to the partitions listed in VolToPart[]. */
#define _USE_ERASE 0 /* 0:Disable or 1:Enable */
/* To enable sector erase feature, set _USE_ERASE to 1. CTRL_ERASE_SECTOR command
/ should be added to the disk_ioctl functio. */
/*---------------------------------------------------------------------------/
/ System Configurations
/----------------------------------------------------------------------------*/
#define _WORD_ACCESS 0 /* 0 or 1 */
/* Set 0 first and it is always compatible with all platforms. The _WORD_ACCESS
/ option defines which access method is used to the word data on the FAT volume.
/
/ 0: Byte-by-byte access.
/ 1: Word access. Do not choose this unless following condition is met.
/
/ When the byte order on the memory is big-endian or address miss-aligned word
/ access results incorrect behavior, the _WORD_ACCESS must be set to 0.
/ If it is not the case, the value can also be set to 1 to improve the
/ performance and code size.
*/
/* A header file that defines sync object types on the O/S, such as
/ windows.h, ucos_ii.h and semphr.h, must be included prior to ff.h. */
#define _FS_REENTRANT 0 /* 0:Disable or 1:Enable */
#define _FS_TIMEOUT 1000 /* Timeout period in unit of time ticks */
#define _SYNC_t HANDLE /* O/S dependent type of sync object. e.g. HANDLE, OS_EVENT*, ID and etc.. */
/* The _FS_REENTRANT option switches the reentrancy (thread safe) of the FatFs module.
/
/ 0: Disable reentrancy. _SYNC_t and _FS_TIMEOUT have no effect.
/ 1: Enable reentrancy. Also user provided synchronization handlers,
/ ff_req_grant, ff_rel_grant, ff_del_syncobj and ff_cre_syncobj
/ function must be added to the project. */
#define _FS_LOCK 0 /* 0:Disable or >=1:Enable */
/* To enable file lock control feature, set _FS_LOCK to 1 or greater.
The value defines how many files can be opened simultaneously. */
#endif /* _FFCONFIG */

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/*-------------------------------------------*/
/* Integer type definitions for FatFs module */
/*-------------------------------------------*/
#ifndef _INTEGER
#define _INTEGER
#ifdef _WIN32 /* FatFs development platform */
#include <windows.h>
#include <tchar.h>
#else /* Embedded platform */
/* 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 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;
typedef unsigned short WCHAR;
/* These types must be 32-bit integer */
typedef long LONG;
typedef unsigned long ULONG;
typedef unsigned long DWORD;
#endif
#endif

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/*----------------------------------------------------------------------*/
/* FatFs sample project for generic microcontrollers (C)ChaN, 2012 */
/*----------------------------------------------------------------------*/
#include <stdio.h>
#include "ff.h"
FATFS Fatfs; /* File system object */
FIL Fil; /* File object */
BYTE Buff[128]; /* File read buffer */
void die ( /* Stop with dying message */
FRESULT rc /* FatFs return value */
)
{
printf("Failed with rc=%u.\n", rc);
for (;;) ;
}
/*-----------------------------------------------------------------------*/
/* Program Main */
/*-----------------------------------------------------------------------*/
int main (void)
{
FRESULT rc; /* Result code */
DIR dir; /* Directory object */
FILINFO fno; /* File information object */
UINT bw, br, i;
f_mount(0, &Fatfs); /* Register volume work area (never fails) */
printf("\nOpen an existing file (message.txt).\n");
rc = f_open(&Fil, "MESSAGE.TXT", FA_READ);
if (rc) die(rc);
printf("\nType the file content.\n");
for (;;) {
rc = f_read(&Fil, Buff, sizeof Buff, &br); /* Read a chunk of file */
if (rc || !br) break; /* Error or end of file */
for (i = 0; i < br; i++) /* Type the data */
putchar(Buff[i]);
}
if (rc) die(rc);
printf("\nClose the file.\n");
rc = f_close(&Fil);
if (rc) die(rc);
printf("\nCreate a new file (hello.txt).\n");
rc = f_open(&Fil, "HELLO.TXT", FA_WRITE | FA_CREATE_ALWAYS);
if (rc) die(rc);
printf("\nWrite a text data. (Hello world!)\n");
rc = f_write(&Fil, "Hello world!\r\n", 14, &bw);
if (rc) die(rc);
printf("%u bytes written.\n", bw);
printf("\nClose the file.\n");
rc = f_close(&Fil);
if (rc) die(rc);
printf("\nOpen root directory.\n");
rc = f_opendir(&dir, "");
if (rc) die(rc);
printf("\nDirectory listing...\n");
for (;;) {
rc = f_readdir(&dir, &fno); /* Read a directory item */
if (rc || !fno.fname[0]) break; /* Error or end of dir */
if (fno.fattrib & AM_DIR)
printf(" <dir> %s\n", fno.fname);
else
printf("%8lu %s\n", fno.fsize, fno.fname);
}
if (rc) die(rc);
printf("\nTest completed.\n");
for (;;) ;
}
/*---------------------------------------------------------*/
/* User Provided Timer Function for FatFs module */
/*---------------------------------------------------------*/
DWORD get_fattime (void)
{
return ((DWORD)(2012 - 1980) << 25) /* Year = 2012 */
| ((DWORD)1 << 21) /* Month = 1 */
| ((DWORD)1 << 16) /* Day_m = 1*/
| ((DWORD)0 << 11) /* Hour = 0 */
| ((DWORD)0 << 5) /* Min = 0 */
| ((DWORD)0 >> 1); /* Sec = 0 */
}

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SD_CARD/BaS_gcc/sources/mmcbb.c Normal file
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/*------------------------------------------------------------------------/
/ Bitbanging MMCv3/SDv1/SDv2 (in SPI mode) control module
/-------------------------------------------------------------------------/
/
/ Copyright (C) 2012, ChaN, all right reserved.
/
/ * This software 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 products UNDER YOUR RESPONSIBILITY.
/ * Redistributions of source code must retain the above copyright notice.
/
/--------------------------------------------------------------------------/
Features and Limitations:
* Very Easy to Port
It uses only 4 bit of GPIO port. No interrupt, no SPI port is used.
* Platform Independent
You need to modify only a few macros to control GPIO ports.
* Low Speed
The data transfer rate will be several times slower than hardware SPI.
/-------------------------------------------------------------------------*/
#include "diskio.h" /* Common include file for FatFs and disk I/O layer */
/*-------------------------------------------------------------------------*/
/* Platform dependent macros and functions needed to be modified */
/*-------------------------------------------------------------------------*/
#include <device.h> /* Include device specific declareation file here */
#define INIT_PORT() init_port() /* Initialize MMC control port (CS=H, CLK=L, DI=H, DO=in) */
#define DLY_US(n) dly_us(n) /* Delay n microseconds */
#define CS_H() PORT |= 0x01 /* Set MMC CS "high" */
#define CS_L() PORT &= 0xFE /* Set MMC CS "low" */
#define CK_H() PORT |= 0x02 /* Set MMC SCLK "high" */
#define CK_L() PORT &= 0xFD /* Set MMC SCLK "low" */
#define DI_H() PORT |= 0x04 /* Set MMC DI "high" */
#define DI_L() PORT &= 0xFB /* Set MMC DI "low" */
#define DO (PORT & 0x08) /* Test for MMC DO ('H':true, 'L':false) */
/*--------------------------------------------------------------------------
Module Private Functions
---------------------------------------------------------------------------*/
/* MMC/SD command (SPI mode) */
#define CMD0 (0) /* GO_IDLE_STATE */
#define CMD1 (1) /* SEND_OP_COND */
#define ACMD41 (0x80+41) /* SEND_OP_COND (SDC) */
#define CMD8 (8) /* SEND_IF_COND */
#define CMD9 (9) /* SEND_CSD */
#define CMD10 (10) /* SEND_CID */
#define CMD12 (12) /* STOP_TRANSMISSION */
#define CMD13 (13) /* SEND_STATUS */
#define ACMD13 (0x80+13) /* SD_STATUS (SDC) */
#define CMD16 (16) /* SET_BLOCKLEN */
#define CMD17 (17) /* READ_SINGLE_BLOCK */
#define CMD18 (18) /* READ_MULTIPLE_BLOCK */
#define CMD23 (23) /* SET_BLOCK_COUNT */
#define ACMD23 (0x80+23) /* SET_WR_BLK_ERASE_COUNT (SDC) */
#define CMD24 (24) /* WRITE_BLOCK */
#define CMD25 (25) /* WRITE_MULTIPLE_BLOCK */
#define CMD41 (41) /* SEND_OP_COND (ACMD) */
#define CMD55 (55) /* APP_CMD */
#define CMD58 (58) /* READ_OCR */
/* Card type flags (CardType) */
#define CT_MMC 0x01 /* MMC ver 3 */
#define CT_SD1 0x02 /* SD ver 1 */
#define CT_SD2 0x04 /* SD ver 2 */
#define CT_SDC 0x06 /* SD */
#define CT_BLOCK 0x08 /* Block addressing */
static
DSTATUS Stat = STA_NOINIT; /* Disk status */
static
BYTE CardType; /* b0:MMC, b1:SDv1, b2:SDv2, b3:Block addressing */
/*-----------------------------------------------------------------------*/
/* Transmit bytes to the card (bitbanging) */
/*-----------------------------------------------------------------------*/
static
void xmit_mmc (
const BYTE* buff, /* Data to be sent */
UINT bc /* Number of bytes to send */
)
{
BYTE d;
do {
d = *buff++; /* Get a byte to be sent */
if (d & 0x80) DI_H(); else DI_L(); /* bit7 */
CK_H(); CK_L();
if (d & 0x40) DI_H(); else DI_L(); /* bit6 */
CK_H(); CK_L();
if (d & 0x20) DI_H(); else DI_L(); /* bit5 */
CK_H(); CK_L();
if (d & 0x10) DI_H(); else DI_L(); /* bit4 */
CK_H(); CK_L();
if (d & 0x08) DI_H(); else DI_L(); /* bit3 */
CK_H(); CK_L();
if (d & 0x04) DI_H(); else DI_L(); /* bit2 */
CK_H(); CK_L();
if (d & 0x02) DI_H(); else DI_L(); /* bit1 */
CK_H(); CK_L();
if (d & 0x01) DI_H(); else DI_L(); /* bit0 */
CK_H(); CK_L();
} while (--bc);
}
/*-----------------------------------------------------------------------*/
/* Receive bytes from the card (bitbanging) */
/*-----------------------------------------------------------------------*/
static
void rcvr_mmc (
BYTE *buff, /* Pointer to read buffer */
UINT bc /* Number of bytes to receive */
)
{
BYTE r;
DI_H(); /* Send 0xFF */
do {
r = 0; if (DO) r++; /* bit7 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit6 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit5 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit4 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit3 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit2 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit1 */
CK_H(); CK_L();
r <<= 1; if (DO) r++; /* bit0 */
CK_H(); CK_L();
*buff++ = r; /* Store a received byte */
} while (--bc);
}
/*-----------------------------------------------------------------------*/
/* Wait for card ready */
/*-----------------------------------------------------------------------*/
static
int wait_ready (void) /* 1:OK, 0:Timeout */
{
BYTE d;
UINT tmr;
for (tmr = 5000; tmr; tmr--) { /* Wait for ready in timeout of 500ms */
rcvr_mmc(&d, 1);
if (d == 0xFF) break;
DLY_US(100);
}
return tmr ? 1 : 0;
}
/*-----------------------------------------------------------------------*/
/* Deselect the card and release SPI bus */
/*-----------------------------------------------------------------------*/
static
void deselect (void)
{
BYTE d;
CS_H();
rcvr_mmc(&d, 1); /* Dummy clock (force DO hi-z for multiple slave SPI) */
}
/*-----------------------------------------------------------------------*/
/* Select the card and wait for ready */
/*-----------------------------------------------------------------------*/
static
int select (void) /* 1:OK, 0:Timeout */
{
BYTE d;
CS_L();
rcvr_mmc(&d, 1); /* Dummy clock (force DO enabled) */
if (wait_ready()) return 1; /* OK */
deselect();
return 0; /* Failed */
}
/*-----------------------------------------------------------------------*/
/* Receive a data packet from the card */
/*-----------------------------------------------------------------------*/
static
int rcvr_datablock ( /* 1:OK, 0:Failed */
BYTE *buff, /* Data buffer to store received data */
UINT btr /* Byte count */
)
{
BYTE d[2];
UINT tmr;
for (tmr = 1000; tmr; tmr--) { /* Wait for data packet in timeout of 100ms */
rcvr_mmc(d, 1);
if (d[0] != 0xFF) break;
DLY_US(100);
}
if (d[0] != 0xFE) return 0; /* If not valid data token, return with error */
rcvr_mmc(buff, btr); /* Receive the data block into buffer */
rcvr_mmc(d, 2); /* Discard CRC */
return 1; /* Return with success */
}
/*-----------------------------------------------------------------------*/
/* Send a data packet to the card */
/*-----------------------------------------------------------------------*/
static
int xmit_datablock ( /* 1:OK, 0:Failed */
const BYTE *buff, /* 512 byte data block to be transmitted */
BYTE token /* Data/Stop token */
)
{
BYTE d[2];
if (!wait_ready()) return 0;
d[0] = token;
xmit_mmc(d, 1); /* Xmit a token */
if (token != 0xFD) { /* Is it data token? */
xmit_mmc(buff, 512); /* Xmit the 512 byte data block to MMC */
rcvr_mmc(d, 2); /* Xmit dummy CRC (0xFF,0xFF) */
rcvr_mmc(d, 1); /* Receive data response */
if ((d[0] & 0x1F) != 0x05) /* If not accepted, return with error */
return 0;
}
return 1;
}
/*-----------------------------------------------------------------------*/
/* Send a command packet to the card */
/*-----------------------------------------------------------------------*/
static
BYTE send_cmd ( /* Returns command response (bit7==1:Send failed)*/
BYTE cmd, /* Command byte */
DWORD arg /* Argument */
)
{
BYTE n, d, buf[6];
if (cmd & 0x80) { /* ACMD<n> is the command sequense of CMD55-CMD<n> */
cmd &= 0x7F;
n = send_cmd(CMD55, 0);
if (n > 1) return n;
}
/* Select the card and wait for ready */
deselect();
if (!select()) return 0xFF;
/* Send a command packet */
buf[0] = 0x40 | cmd; /* Start + Command index */
buf[1] = (BYTE)(arg >> 24); /* Argument[31..24] */
buf[2] = (BYTE)(arg >> 16); /* Argument[23..16] */
buf[3] = (BYTE)(arg >> 8); /* Argument[15..8] */
buf[4] = (BYTE)arg; /* Argument[7..0] */
n = 0x01; /* Dummy CRC + Stop */
if (cmd == CMD0) n = 0x95; /* (valid CRC for CMD0(0)) */
if (cmd == CMD8) n = 0x87; /* (valid CRC for CMD8(0x1AA)) */
buf[5] = n;
xmit_mmc(buf, 6);
/* Receive command response */
if (cmd == CMD12) rcvr_mmc(&d, 1); /* Skip a stuff byte when stop reading */
n = 10; /* Wait for a valid response in timeout of 10 attempts */
do
rcvr_mmc(&d, 1);
while ((d & 0x80) && --n);
return d; /* Return with the response value */
}
/*--------------------------------------------------------------------------
Public Functions
---------------------------------------------------------------------------*/
/*-----------------------------------------------------------------------*/
/* Get Disk Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status (
BYTE drv /* Drive number (always 0) */
)
{
DSTATUS s;
BYTE d;
if (drv) return STA_NOINIT;
/* Check if the card is kept initialized */
s = Stat;
if (!(s & STA_NOINIT)) {
if (send_cmd(CMD13, 0)) /* Read card status */
s = STA_NOINIT;
rcvr_mmc(&d, 1); /* Receive following half of R2 */
deselect();
}
Stat = s;
return s;
}
/*-----------------------------------------------------------------------*/
/* Initialize Disk Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE drv /* Physical drive nmuber (0) */
)
{
BYTE n, ty, cmd, buf[4];
UINT tmr;
DSTATUS s;
if (drv) return RES_NOTRDY;
INIT_PORT(); /* Initialize control port */
for (n = 10; n; n--) rcvr_mmc(buf, 1); /* 80 dummy clocks */
ty = 0;
if (send_cmd(CMD0, 0) == 1) { /* Enter Idle state */
if (send_cmd(CMD8, 0x1AA) == 1) { /* SDv2? */
rcvr_mmc(buf, 4); /* Get trailing return value of R7 resp */
if (buf[2] == 0x01 && buf[3] == 0xAA) { /* The card can work at vdd range of 2.7-3.6V */
for (tmr = 1000; tmr; tmr--) { /* Wait for leaving idle state (ACMD41 with HCS bit) */
if (send_cmd(ACMD41, 1UL << 30) == 0) break;
DLY_US(1000);
}
if (tmr && send_cmd(CMD58, 0) == 0) { /* Check CCS bit in the OCR */
rcvr_mmc(buf, 4);
ty = (buf[0] & 0x40) ? CT_SD2 | CT_BLOCK : CT_SD2; /* SDv2 */
}
}
} else { /* SDv1 or MMCv3 */
if (send_cmd(ACMD41, 0) <= 1) {
ty = CT_SD1; cmd = ACMD41; /* SDv1 */
} else {
ty = CT_MMC; cmd = CMD1; /* MMCv3 */
}
for (tmr = 1000; tmr; tmr--) { /* Wait for leaving idle state */
if (send_cmd(cmd, 0) == 0) break;
DLY_US(1000);
}
if (!tmr || send_cmd(CMD16, 512) != 0) /* Set R/W block length to 512 */
ty = 0;
}
}
CardType = ty;
s = ty ? 0 : STA_NOINIT;
Stat = s;
deselect();
return s;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read (
BYTE drv, /* Physical drive nmuber (0) */
BYTE *buff, /* Pointer to the data buffer to store read data */
DWORD sector, /* Start sector number (LBA) */
BYTE count /* Sector count (1..128) */
)
{
if (disk_status(drv) & STA_NOINIT) return RES_NOTRDY;
if (!count) return RES_PARERR;
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert LBA to byte address if needed */
if (count == 1) { /* Single block read */
if ((send_cmd(CMD17, sector) == 0) /* READ_SINGLE_BLOCK */
&& rcvr_datablock(buff, 512))
count = 0;
}
else { /* Multiple block read */
if (send_cmd(CMD18, sector) == 0) { /* READ_MULTIPLE_BLOCK */
do {
if (!rcvr_datablock(buff, 512)) break;
buff += 512;
} while (--count);
send_cmd(CMD12, 0); /* STOP_TRANSMISSION */
}
}
deselect();
return count ? RES_ERROR : RES_OK;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_write (
BYTE drv, /* Physical drive nmuber (0) */
const BYTE *buff, /* Pointer to the data to be written */
DWORD sector, /* Start sector number (LBA) */
BYTE count /* Sector count (1..128) */
)
{
if (disk_status(drv) & STA_NOINIT) return RES_NOTRDY;
if (!count) return RES_PARERR;
if (!(CardType & CT_BLOCK)) sector *= 512; /* Convert LBA to byte address if needed */
if (count == 1) { /* Single block write */
if ((send_cmd(CMD24, sector) == 0) /* WRITE_BLOCK */
&& xmit_datablock(buff, 0xFE))
count = 0;
}
else { /* Multiple block write */
if (CardType & CT_SDC) send_cmd(ACMD23, count);
if (send_cmd(CMD25, sector) == 0) { /* WRITE_MULTIPLE_BLOCK */
do {
if (!xmit_datablock(buff, 0xFC)) break;
buff += 512;
} while (--count);
if (!xmit_datablock(0, 0xFD)) /* STOP_TRAN token */
count = 1;
}
}
deselect();
return count ? RES_ERROR : RES_OK;
}
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
DRESULT disk_ioctl (
BYTE drv, /* Physical drive nmuber (0) */
BYTE ctrl, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res;
BYTE n, csd[16];
DWORD cs;
if (disk_status(drv) & STA_NOINIT) return RES_NOTRDY; /* Check if card is in the socket */
res = RES_ERROR;
switch (ctrl) {
case CTRL_SYNC : /* Make sure that no pending write process */
if (select()) {
deselect();
res = RES_OK;
}
break;
case GET_SECTOR_COUNT : /* Get number of sectors on the disk (DWORD) */
if ((send_cmd(CMD9, 0) == 0) && rcvr_datablock(csd, 16)) {
if ((csd[0] >> 6) == 1) { /* SDC ver 2.00 */
cs = csd[9] + ((WORD)csd[8] << 8) + ((DWORD)(csd[7] & 63) << 8) + 1;
*(DWORD*)buff = cs << 10;
} else { /* SDC ver 1.XX or MMC */
n = (csd[5] & 15) + ((csd[10] & 128) >> 7) + ((csd[9] & 3) << 1) + 2;
cs = (csd[8] >> 6) + ((WORD)csd[7] << 2) + ((WORD)(csd[6] & 3) << 10) + 1;
*(DWORD*)buff = cs << (n - 9);
}
res = RES_OK;
}
break;
case GET_BLOCK_SIZE : /* Get erase block size in unit of sector (DWORD) */
*(DWORD*)buff = 128;
res = RES_OK;
break;
default:
res = RES_PARERR;
}
deselect();
return res;
}
/*-----------------------------------------------------------------------*/
/* This function is defined for only project compatibility */
void disk_timerproc (void)
{
/* Nothing to do */
}