/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs     (C)ChaN, 2016        */
/*-----------------------------------------------------------------------*/
/* 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 <nds.h>
#include <nds/disc_io.h>
#include <string.h>
#include "dldi.h"
#include "ff.h"			/* Obtains integer types */
#include "diskio.h"		/* Declarations of disk functions */

/* Definitions of physical drive number for each drive */
#define DEV_FAT		0 //dldi

/*-----------------------------------------------------------------------*/
/* Get Drive Status                                                      */
/*-----------------------------------------------------------------------*/

DSTATUS disk_status (
    BYTE pdrv		/* Physical drive nmuber to identify the drive */
)
{
    return 0;
}

// static void gbaIrq(u32 mask)
// {
//     rtos_signalEvent(&sSemihostingCommandDoneEvent);
// }

/*-----------------------------------------------------------------------*/
/* Inidialize a Drive                                                    */
/*-----------------------------------------------------------------------*/

DSTATUS disk_initialize (
    BYTE pdrv				/* Physical drive nmuber to identify the drive */
)
{
    if (pdrv == DEV_FAT)
    {
        gDldiInterface.startup();
        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 */
    DWORD sector,	/* Start sector in LBA */
    UINT count		/* Number of sectors to read */
)
{
    if (pdrv == DEV_FAT)
    {
        gDldiInterface.readSectors(sector, count, buff);
        return RES_OK;
    }

    return RES_PARERR;
}

/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions                                               */
/*-----------------------------------------------------------------------*/

DRESULT disk_ioctl (
    BYTE pdrv,		/* Physical drive nmuber (0..) */
    BYTE cmd,		/* Control code */
    void *buff		/* Buffer to send/receive control data */
)
{
    return RES_OK;
}