sd_diskio.c File Reference

SD Disk I/O driver. More...

#include "ff_gen_drv.h"
#include "sd_diskio.h"
#include <string.h>
#include <stdio.h>

Include dependency graph for sd_diskio.c:

Go to the source code of this file.

Macros
#define	QUEUE_SIZE   (uint32_t) 10
#define	READ_CPLT_MSG   (uint32_t) 1
#define	WRITE_CPLT_MSG   (uint32_t) 2
#define	SD_TIMEOUT   30 * 1000
#define	SD_DEFAULT_BLOCK_SIZE   512

Functions
static DSTATUS	SD_CheckStatus (BYTE lun)
DSTATUS	SD_initialize (BYTE lun)
	Initializes a Drive. More...
DSTATUS	SD_status (BYTE lun)
	Gets Disk Status. More...
DRESULT	SD_read (BYTE lun, BYTE *buff, DWORD sector, UINT count)
	Reads Sector(s) More...
static int	SD_CheckStatusWithTimeout (uint32_t timeout)
void	BSP_SD_WriteCpltCallback (void)
	Writes Sector(s) More...
void	BSP_SD_ReadCpltCallback (void)
	Rx Transfer completed callbacks. More...

Variables
static volatile DSTATUS	Stat = STA_NOINIT
static osMessageQId	SDQueueID = NULL
const Diskio_drvTypeDef	SD_Driver

Detailed Description

SD Disk I/O driver.

Attention

© Copyright (c) 2020 STMicroelectronics. All rights reserved.

This software component is licensed by ST under Ultimate Liberty license SLA0044, the "License"; You may not use this file except in compliance with the License. You may obtain a copy of the License at: www.st.com/SLA0044

Definition in file sd_diskio.c.

Macro Definition Documentation

QUEUE_SIZE

#define QUEUE_SIZE   (uint32_t) 10

Definition at line 38 of file sd_diskio.c.

READ_CPLT_MSG

#define READ_CPLT_MSG   (uint32_t) 1

Definition at line 39 of file sd_diskio.c.

SD_DEFAULT_BLOCK_SIZE

#define SD_DEFAULT_BLOCK_SIZE   512

Definition at line 60 of file sd_diskio.c.

SD_TIMEOUT

#define SD_TIMEOUT   30 * 1000

Definition at line 58 of file sd_diskio.c.

WRITE_CPLT_MSG

#define WRITE_CPLT_MSG   (uint32_t) 2

Definition at line 40 of file sd_diskio.c.

Function Documentation

BSP_SD_ReadCpltCallback()

void BSP_SD_ReadCpltCallback

(

void

)

Rx Transfer completed callbacks.

BSP Rx Transfer completed callback.

Parameters

hsd

SD handle

Return values

None

Definition at line 654 of file sd_diskio.c.

BSP_SD_WriteCpltCallback()

void BSP_SD_WriteCpltCallback

(

void

)

Writes Sector(s)

BSP Tx Transfer completed callback.

Parameters

lun	: not used
*buff	Data to be written
sector	Sector address (LBA)
count	Number of sectors to write (1..128)

Return values

DRESULT

Operation result

I/O control operation

Parameters

lun	: not used
cmd	Control code
*buff	Buffer to send/receive control data

Return values

DRESULT

Operation result

Tx Transfer completed callbacks

Parameters

hsd

SD handle

Return values

None

Definition at line 634 of file sd_diskio.c.

SD_CheckStatus()

static DSTATUS SD_CheckStatus ( BYTE  lun )

static

Definition at line 160 of file sd_diskio.c.

SD_CheckStatusWithTimeout()

static int SD_CheckStatusWithTimeout ( uint32_t  timeout )

static

Definition at line 139 of file sd_diskio.c.

SD_initialize()

DSTATUS SD_initialize

(

BYTE

lun

)

Initializes a Drive.

Parameters

lun	: not used

Return values

DSTATUS

Operation status

Definition at line 177 of file sd_diskio.c.

SD_read()

DRESULT SD_read	(	BYTE	lun,
		BYTE *	buff,
		DWORD	sector,
		UINT	count
	)

Reads Sector(s)

Parameters

lun	: not used
*buff	Data buffer to store read data
sector	Sector address (LBA)
count	Number of sectors to read (1..128)

Return values

DRESULT

Operation result

Definition at line 251 of file sd_diskio.c.

SD_status()

DSTATUS SD_status

(

BYTE

lun

)

Gets Disk Status.

Parameters

lun	: not used

Return values

DSTATUS

Operation status

Definition at line 234 of file sd_diskio.c.

Variable Documentation

SD_Driver

const Diskio_drvTypeDef SD_Driver

Initial value:

=
{
  SD_initialize,
  SD_status,
  SD_read,
 
 
 
 
 
 
 
}

Definition at line 119 of file sd_diskio.c.

SDQueueID

osMessageQId SDQueueID = NULL

static

Definition at line 103 of file sd_diskio.c.

Stat

volatile DSTATUS Stat = STA_NOINIT

static

Definition at line 100 of file sd_diskio.c.