SdDiskIo

Functions
const Diskio_drvTypeDef *	SdDiskIoGetDriver (void)
	Get a pointer to the SD card disk I/O driver structure containing the initialize, status, read, write, and ioctl callbacks used by the FatFs middleware. More...
static void	SdReadCompleteCallback (void)
	Callback for the SD DMA read transfer complete.
static void	SdWriteCompleteCallback (void)
	Callback for the SD DMA write transfer complete.
static DSTATUS	SdDiskIoInit (BYTE pdrv)
	Initialize the SD card disk I/O driver and register DMA callbacks. More...
static DSTATUS	SdDiskIoStatus (BYTE pdrv)
	Return the current status of the SD card. More...
static DRESULT	SdDiskIoRead (BYTE pdrv, BYTE *buff, DWORD sector, UINT count)
	Read one or more sectors from the SD card. More...
static DRESULT	SdDiskIoWrite (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count)
	Write one or more sectors to the SD card. More...
static DRESULT	SdDiskIoIoctl (BYTE pdrv, BYTE cmd, void *buff)
	Perform miscellaneous disk I/O control operations on the SD card. More...

Variables
static volatile bool	isReadComplete = false
static volatile bool	isWriteComplete = false

Detailed Description

Function Documentation

SdDiskIoGetDriver()

const Diskio_drvTypeDef * SdDiskIoGetDriver

(

void

)

Get a pointer to the SD card disk I/O driver structure containing the initialize, status, read, write, and ioctl callbacks used by the FatFs middleware.

Returns

Pointer to the SD card disk I/O driver structure.

Definition at line 103 of file sd_diskio.c.

SdDiskIoInit()

static DSTATUS SdDiskIoInit ( BYTE  pdrv )

static

Initialize the SD card disk I/O driver and register DMA callbacks.

Parameters

pdrv	Physical drive number.

Returns

Disk status flags.

Definition at line 113 of file sd_diskio.c.

SdDiskIoIoctl()

static DRESULT SdDiskIoIoctl ( BYTE  pdrv, BYTE  cmd, void *  buff  )

static

Perform miscellaneous disk I/O control operations on the SD card.

Parameters

pdrv	Physical drive number.
cmd	Control command code (CTRL_SYNC, GET_SECTOR_COUNT, etc.).
buff	Pointer to the parameter buffer.

Returns

RES_OK on success, RES_PARERR on unknown command, RES_NOTRDY if the card is not ready.

Definition at line 237 of file sd_diskio.c.

SdDiskIoRead()

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

static

Read one or more sectors from the SD card.

Parameters

pdrv	Physical drive number.
buff	Pointer to the buffer to store the read data.
sector	Start sector number.
count	Number of sectors to read.

Returns

RES_OK on success, RES_ERROR on failure.

Definition at line 137 of file sd_diskio.c.

SdDiskIoStatus()

static DSTATUS SdDiskIoStatus ( BYTE  pdrv )

static

Return the current status of the SD card.

Parameters

pdrv	Physical drive number.

Returns

Disk status flags.

Definition at line 124 of file sd_diskio.c.

SdDiskIoWrite()

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

static

Write one or more sectors to the SD card.

Parameters

pdrv	Physical drive number.
buff	Pointer to the data to be written.
sector	Start sector number.
count	Number of sectors to write.

Returns

RES_OK on success, RES_ERROR on failure.

Definition at line 185 of file sd_diskio.c.

Variable Documentation

isReadComplete

volatile bool isReadComplete = false

static

Flag indicating that a DMA read transfer has completed.

Definition at line 97 of file sd_diskio.c.

isWriteComplete

volatile bool isWriteComplete = false

static

Flag indicating that a DMA write transfer has completed.

Definition at line 100 of file sd_diskio.c.