diskio.c File Reference

#include "diskio.h"
#include "ff_gen_drv.h"

Functions
DSTATUS	disk_status (BYTE pdrv)
	Gets Disk Status. More...
DSTATUS	disk_initialize (BYTE pdrv)
	Initializes a Drive. More...
DRESULT	disk_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count)
	Reads Sector(s) More...
DRESULT	disk_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count)
	Writes Sector(s) More...
DRESULT	disk_ioctl (BYTE pdrv, BYTE cmd, void *buff)
	I/O control operation. More...
__weak DWORD	get_fattime (void)
	Gets Time from RTC. More...

Variables
Disk_drvTypeDef	disk

Function Documentation

disk_status()

DSTATUS disk_status

(

BYTE

pdrv

)

Gets Disk Status.

Parameters

pdrv	Physical drive number (0..)

Return values

DSTATUS

Operation status

{
  DSTATUS stat;
 
  stat = disk.drv[pdrv]->disk_status(disk.lun[pdrv]);
  return stat;
}

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disk_initialize()

DSTATUS disk_initialize

(

BYTE

pdrv

)

Initializes a Drive.

Parameters

pdrv	Physical drive number (0..)

Return values

DSTATUS

Operation status

{
  DSTATUS stat = RES_OK;
 
  if(disk.is_initialized[pdrv] == 0)
  {
    disk.is_initialized[pdrv] = 1;
    stat = disk.drv[pdrv]->disk_initialize(disk.lun[pdrv]);
  }
  return stat;
}

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disk_read()

DRESULT disk_read	(	BYTE	pdrv,
		BYTE *	buff,
		DWORD	sector,
		UINT	count
	)

Reads Sector(s)

Parameters

pdrv	Physical drive number (0..)
*buff	Data buffer to store read data
sector	Sector address (LBA)
count	Number of sectors to read (1..128)

Return values

DRESULT

Operation result

{
  DRESULT res;
 
  res = disk.drv[pdrv]->disk_read(disk.lun[pdrv], buff, sector, count);
  return res;
}

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disk_write()

DRESULT disk_write	(	BYTE	pdrv,
		const BYTE *	buff,
		DWORD	sector,
		UINT	count
	)

Writes Sector(s)

Parameters

pdrv	Physical drive number (0..)
*buff	Data to be written
sector	Sector address (LBA)
count	Number of sectors to write (1..128)

Return values

DRESULT

Operation result

{
  DRESULT res;
 
  res = disk.drv[pdrv]->disk_write(disk.lun[pdrv], buff, sector, count);
  return res;
}

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disk_ioctl()

DRESULT disk_ioctl	(	BYTE	pdrv,
		BYTE	cmd,
		void *	buff
	)

I/O control operation.

Parameters

pdrv	Physical drive number (0..)
cmd	Control code
*buff	Buffer to send/receive control data

Return values

DRESULT

Operation result

{
  DRESULT res;
 
  res = disk.drv[pdrv]->disk_ioctl(disk.lun[pdrv], cmd, buff);
  return res;
}

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get_fattime()

__weak DWORD get_fattime

(

void

)

Gets Time from RTC.

Parameters

None

Return values

Time

in DWORD

{
  return 0;
}

Variable Documentation

disk

Disk_drvTypeDef disk

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