129 lines
3.5 KiB
C
129 lines
3.5 KiB
C
/*-----------------------------------------------------------------------*/
|
|
/* Low level disk I/O module SKELETON for FatFs (C)ChaN, 2019 */
|
|
/*-----------------------------------------------------------------------*/
|
|
/* 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 "bsp_sd_spi.h"
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Get Drive Status */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_status (
|
|
BYTE pdrv /* Physical drive nmuber to identify the drive */
|
|
)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Inidialize a Drive */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_initialize (
|
|
BYTE pdrv /* Physical drive nmuber to identify the drive */
|
|
)
|
|
{
|
|
uint8_t sd_result;
|
|
|
|
sd_result = bsp_sd_init();
|
|
|
|
if(sd_result == bsp_sd_error_none) {
|
|
return 0;
|
|
}
|
|
|
|
return STA_NOINIT;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Read Sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DRESULT disk_read (
|
|
BYTE pdrv, /* Physical drive nmuber to identify the drive */
|
|
BYTE *buff, /* Data buffer to store read data */
|
|
LBA_t sector, /* Start sector in LBA */
|
|
UINT count /* Number of sectors to read */
|
|
)
|
|
{
|
|
bsp_sd_error_t sd_result;
|
|
|
|
if (count > 1) {
|
|
sd_result = bsp_sd_read_multi_blocks(buff, sector, count);
|
|
} else {
|
|
sd_result = bsp_sd_read_block(buff, sector);
|
|
}
|
|
|
|
if(sd_result == bsp_sd_error_none) {
|
|
return RES_OK;
|
|
}
|
|
|
|
return RES_ERROR;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* 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 */
|
|
LBA_t sector, /* Start sector in LBA */
|
|
UINT count /* Number of sectors to write */
|
|
)
|
|
{
|
|
bsp_sd_error_t sd_result;
|
|
|
|
if (count > 1) {
|
|
sd_result = bsp_sd_write_multi_blocks(buff, sector, count);
|
|
} else {
|
|
sd_result = bsp_sd_write_block(buff, sector);
|
|
}
|
|
|
|
if(sd_result == bsp_sd_error_none) {
|
|
return RES_OK;
|
|
}
|
|
|
|
return RES_ERROR;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Miscellaneous Functions */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DRESULT disk_ioctl (
|
|
BYTE pdrv, /* Physical drive nmuber (0..) */
|
|
BYTE cmd, /* Control code */
|
|
void *buff /* Buffer to send/receive control data */
|
|
)
|
|
{
|
|
switch(cmd) {
|
|
case CTRL_SYNC:
|
|
return RES_OK;
|
|
case GET_SECTOR_SIZE:
|
|
case GET_BLOCK_SIZE:
|
|
*(DWORD *)buff = BSP_SD_BLOCK_SIZE;
|
|
return RES_OK;
|
|
default:
|
|
return RES_PARERR;
|
|
}
|
|
}
|
|
|