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/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2016 */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be */
/* attached to the FatFs via a glue function rather than modifying it. */
/* This is an example of glue functions to attach various exsisting */
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include "ff.h" /* Obtains integer types */
#include "diskio.h" /* Declarations of disk functions */
#include <stdio.h>
#include <time.h>
/* Definitions of physical drive number for each drive */
#define DEV_RAM 0 /* Example: Map Ramdisk to physical drive 0 */
#define DEV_MMC 1 /* Example: Map MMC/SD card to physical drive 1 */
#define DEV_USB 2 /* Example: Map USB MSD to physical drive 2 */
extern FILE
* img
;
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status
(
BYTE pdrv
/* Physical drive nmuber to identify the drive */
)
{
pdrv
;
if(img
==NULL
) return RES_ERROR
;
return RES_OK
;
}
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize
(
BYTE pdrv
/* Physical drive nmuber to identify the drive */
)
{
pdrv
;
if(img
==NULL
) return RES_ERROR
;
return RES_OK
;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read
(
BYTE pdrv
, /* Physical drive nmuber to identify the drive */
BYTE
*buff
, /* Data buffer to store read data */
DWORD sector
, /* Start sector in LBA */
UINT count
/* Number of sectors to read */
)
{
pdrv
;
if(img
==NULL
) return RES_ERROR
;
fseek(img
,sector
*512,SEEK_SET
);
fread(buff
, 1, count
*512, img
);
return RES_OK
;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if FF_FS_READONLY == 0
DRESULT disk_write
(
BYTE pdrv
, /* Physical drive nmuber to identify the drive */
const BYTE
*buff
, /* Data to be written */
DWORD sector
, /* Start sector in LBA */
UINT count
/* Number of sectors to write */
)
{
pdrv
;
if(img
==NULL
) return RES_ERROR
;
fseek(img
,sector
*512,SEEK_SET
);
fwrite(buff
, 1, count
*512, img
);
return RES_OK
;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
DRESULT disk_ioctl
(
BYTE pdrv
, /* Physical drive nmuber (0..) */
BYTE cmd
, /* Control code */
void *buff
/* Buffer to send/receive control data */
)
{
DRESULT res
=RES_OK
;
int result
;
switch (pdrv
) {
case DEV_RAM
:
// Process of the command for the RAM drive
return res
;
case DEV_MMC
:
// Process of the command for the MMC/SD card
return res
;
case DEV_USB
:
// Process of the command the USB drive
return res
;
}
return RES_PARERR
;
}
DWORD get_fattime
(void){
struct tm
*local
;
time_t t
;
DWORD ft
=0;
t
= time(NULL
);
local
= localtime(&t
);
ft
=((local
->tm_year
-80)&0x7f)<<25;
ft
|=((local
->tm_mon
+1)&0x0f)<<21;
ft
|=((local
->tm_mday
)&0x1f)<<16;
ft
|=((local
->tm_hour
)&0x1f)<<11;
ft
|=((local
->tm_min
)&0x3f)<<5;
ft
|=((local
->tm_sec
)&0x3f)>>1;
//printf("Year: %d\n", ft);
return ft
;
}