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/*-----------------------------------------------------------------------*/
/* 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 <eos/dev/sdcard.h>
#define TIMEOUT 1000
#define TIMEOUT_TRIM 60000
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
if (pdrv || (eos_sdc_type() == 0)) return STA_NOINIT;
return 0;
}
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
if (pdrv || (eos_sdc_type() == 0)) return STA_NOINIT;
return 0;
}
/*-----------------------------------------------------------------------*/
/* 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 */
)
{
int rv;
if (pdrv) return RES_PARERR;
if (eos_sdc_type() == 0) return RES_NOTRDY;
rv = eos_sdc_sect_read(sector, count, (uint8_t *)buff);
return rv ? RES_ERROR : RES_OK;
}
/*-----------------------------------------------------------------------*/
/* 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 */
)
{
int rv;
if (pdrv) return RES_PARERR;
if (eos_sdc_type() == 0) return RES_NOTRDY;
rv = eos_sdc_sect_write(sector, count, (uint8_t *)buff);
return rv ? RES_ERROR : RES_OK;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res;
uint32_t ret;
int rv;
if (pdrv) return RES_PARERR;
if (eos_sdc_type() == 0) return RES_NOTRDY;
res = RES_ERROR;
switch (cmd) {
case CTRL_SYNC:
rv = eos_sdc_sync(TIMEOUT);
if (!rv) res = RES_OK;
break;
case GET_SECTOR_COUNT:
rv = eos_sdc_get_sect_count(TIMEOUT, &ret);
if (!rv) {
*(LBA_t*)buff = ret;
res = RES_OK;
}
break;
case GET_BLOCK_SIZE:
rv = eos_sdc_get_blk_size(TIMEOUT, &ret);
if (!rv) {
*(DWORD*)buff = ret;
res = RES_OK;
}
break;
case CTRL_TRIM:
rv = eos_sdc_erase(((LBA_t*)buff)[0], ((LBA_t*)buff)[1], TIMEOUT_TRIM);
if (!rv) res = RES_OK;
break;
}
return res;
}
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