113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
/*-----------------------------------------------------------------------*/
|
|
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2014 */
|
|
/*-----------------------------------------------------------------------*/
|
|
/* 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 "diskio.h" /* FatFs lower layer API */
|
|
#include "sdmmc/sdmmc.h"
|
|
#include "../crypto.h"
|
|
|
|
/* Definitions of physical drive number for each media */
|
|
#define SDCARD 0
|
|
#define CTRNAND 1
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Get Drive Status */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_status (
|
|
__attribute__((unused))
|
|
BYTE pdrv /* Physical drive nmuber to identify the drive */
|
|
)
|
|
{
|
|
return RES_OK;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Inidialize a Drive */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DSTATUS disk_initialize (
|
|
BYTE pdrv /* Physical drive nmuber to identify the drive */
|
|
)
|
|
{
|
|
DRESULT ret;
|
|
static u32 sdmmcInitResult = 4;
|
|
|
|
if(sdmmcInitResult == 4) sdmmcInitResult = sdmmc_sdcard_init();
|
|
|
|
if(pdrv == CTRNAND)
|
|
{
|
|
if(!(sdmmcInitResult & 1))
|
|
{
|
|
ctrNandInit();
|
|
ret = RES_OK;
|
|
}
|
|
else ret = RES_PARERR;
|
|
}
|
|
else ret = (!(sdmmcInitResult & 2)) ? RES_OK : RES_PARERR;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Read Sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
DRESULT disk_read (
|
|
BYTE pdrv, /* Physical drive nmuber to identify the drive */
|
|
BYTE *buff, /* Data buffer to store read data */
|
|
DWORD sector, /* Sector address in LBA */
|
|
UINT count /* Number of sectors to read */
|
|
)
|
|
{
|
|
return ((pdrv == SDCARD && !sdmmc_sdcard_readsectors(sector, count, (BYTE *)buff)) ||
|
|
(pdrv == CTRNAND && !ctrNandRead(sector, count, (BYTE *)buff))) ? RES_OK : RES_PARERR;
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Write Sector(s) */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if _USE_WRITE
|
|
DRESULT disk_write (
|
|
BYTE pdrv, /* Physical drive nmuber to identify the drive */
|
|
const BYTE *buff, /* Data to be written */
|
|
DWORD sector, /* Sector address in LBA */
|
|
UINT count /* Number of sectors to write */
|
|
)
|
|
{
|
|
return (pdrv == SDCARD && !sdmmc_sdcard_writesectors(sector, count, (BYTE *)buff)) ? RES_OK : RES_PARERR;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------*/
|
|
/* Miscellaneous Functions */
|
|
/*-----------------------------------------------------------------------*/
|
|
|
|
#if _USE_IOCTL
|
|
DRESULT disk_ioctl (
|
|
__attribute__((unused))
|
|
BYTE pdrv, /* Physical drive nmuber (0..) */
|
|
__attribute__((unused))
|
|
BYTE cmd, /* Control code */
|
|
__attribute__((unused))
|
|
void *buff /* Buffer to send/receive control data */
|
|
)
|
|
{
|
|
return RES_PARERR;
|
|
}
|
|
#endif
|