Atmosphere/fusee/program/source/fatfs/diskio.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 <stdbool.h>
#include <string.h>
#include "ff.h"         /* Obtains integer types */
#include "diskio.h"     /* Declarations of disk functions */
#include "ffconf.h"

#include "diskio_cpp.h"

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

DSTATUS disk_status (
    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 */
)
{
    return RES_OK;
}



/*-----------------------------------------------------------------------*/
/* 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 */
)
{
    switch (pdrv) {
        case DRIVE_SD:
            return diskio_read_sd_card(buff, count * 512, sector, count) ? RES_OK : RES_ERROR;
        case DRIVE_SYS:
            return diskio_read_system(buff, count * 512, sector, count) ? RES_OK : RES_ERROR;
        default:
            return RES_PARERR;
    }
}



/*-----------------------------------------------------------------------*/
/* 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 */
)
{
    switch (pdrv) {
        case DRIVE_SD:
            return diskio_write_sd_card(sector, count, buff, count * 512) ? RES_OK : RES_ERROR;
        case DRIVE_SYS:
            return diskio_write_system(sector, count, buff, count * 512) ? RES_OK : RES_ERROR;
        default:
            return RES_PARERR;
    }
}

#endif


/*-----------------------------------------------------------------------*/
/* 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;
}