Low level disk interface More...

Detailed Description

Low level disk interface

Files
file	diskio.h

Enumerations
enum	diskio_result_t { DISKIO_RES_OK = 0 , DISKIO_RES_ERROR , DISKIO_RES_WRPRT , DISKIO_RES_NOTRDY , DISKIO_RES_PARERR }
	Results of Disk Functions. More...

enum	diskio_sta_t { DISKIO_STA_NOINIT = 0x01 , DISKIO_STA_NODISK = 0x02 , DISKIO_STA_PROTECT = 0x04 }
	Disk Status Bits. More...

Functions
void	copy_al2un (unsigned char dst, const unsigned long src, int count)
	Copy aligned to unaligned.

void	copy_un2al (unsigned long dst, const unsigned char src, int count)
	Copy unaligned to aligned.

Generic ioctl command (defined 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())

#define	CTRL_ERASE_SECTOR 4
	Force erased a block of sectors (for only _USE_ERASE)

Generic ioctl command
#define	CTRL_POWER 5
	Get/Set power status.

#define	CTRL_LOCK 6
	Lock/Unlock media removal.

#define	CTRL_EJECT 7
	Eject media.

MMC/SDC specific ioctl command
#define	MMC_GET_TYPE 10
	Get card type.

#define	MMC_GET_CSD 11
	Get CSD.

#define	MMC_GET_CID 12
	Get CID.

#define	MMC_GET_OCR 13
	Get OCR.

#define	MMC_GET_SDSTAT 14
	Get SD status.

Macro Definition Documentation

◆ CTRL_EJECT

#define CTRL_EJECT 7

Eject media.

Definition at line 91 of file diskio.h.

◆ CTRL_ERASE_SECTOR

#define CTRL_ERASE_SECTOR 4

Force erased a block of sectors (for only _USE_ERASE)

Definition at line 82 of file diskio.h.

◆ CTRL_LOCK

#define CTRL_LOCK 6

Lock/Unlock media removal.

Definition at line 90 of file diskio.h.

◆ CTRL_POWER

#define CTRL_POWER 5

Get/Set power status.

Definition at line 89 of file diskio.h.

◆ CTRL_SYNC

#define CTRL_SYNC 0

Flush disk cache (for write functions)

Definition at line 78 of file diskio.h.

◆ GET_BLOCK_SIZE

#define GET_BLOCK_SIZE 3

Get erase block size (for only f_mkfs())

Definition at line 81 of file diskio.h.

◆ GET_SECTOR_COUNT

#define GET_SECTOR_COUNT 1

Get media size (for only f_mkfs())

Definition at line 79 of file diskio.h.

◆ GET_SECTOR_SIZE

#define GET_SECTOR_SIZE 2

Get sector size (for multiple sector size (_MAX_SS >= 1024))

Definition at line 80 of file diskio.h.

◆ MMC_GET_CID

#define MMC_GET_CID 12

Get CID.

Definition at line 100 of file diskio.h.

◆ MMC_GET_CSD

#define MMC_GET_CSD 11

Get CSD.

Definition at line 99 of file diskio.h.

◆ MMC_GET_OCR

#define MMC_GET_OCR 13

Get OCR.

Definition at line 101 of file diskio.h.

◆ MMC_GET_SDSTAT

#define MMC_GET_SDSTAT 14

Get SD status.

Definition at line 102 of file diskio.h.

◆ MMC_GET_TYPE

#define MMC_GET_TYPE 10

Get card type.

Definition at line 98 of file diskio.h.

Enumeration Type Documentation

◆ diskio_result_t

enum diskio_result_t

Results of Disk Functions.

Enumerator
DISKIO_RES_OK	0: Successful
DISKIO_RES_ERROR	1: R/W Error
DISKIO_RES_WRPRT	2: Write Protected
DISKIO_RES_NOTRDY	3: Not Ready
DISKIO_RES_PARERR	4: Invalid Parameter

Definition at line 52 of file diskio.h.

◆ diskio_sta_t

enum diskio_sta_t

Disk Status Bits.

Enumerator
DISKIO_STA_NOINIT	Drive not initialized.
DISKIO_STA_NODISK	No medium in the drive.
DISKIO_STA_PROTECT	Write protected.

Definition at line 63 of file diskio.h.

Function Documentation

◆ copy_al2un()

void copy_al2un	(	unsigned char *	dst,
		const unsigned long *	src,
		int	count )

Copy aligned to unaligned.

Parameters

[out]	dst	Pointer to unaligned destination address
[in]	src	Pointer to aligned source address
[in]	count	Number of bytes to copy

◆ copy_un2al()

void copy_un2al	(	unsigned long *	dst,
		const unsigned char *	src,
		int	count )

Copy unaligned to aligned.