#pragma GCC optimize ("O2")


/*-----------------------------------------------------------------------*/
/*
(c) 2017 night_ghost@ykoctpa.ru
 
based on:
*/

/* 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 "diskio.h"		/* FatFs lower layer API */
#include "FatFs/drivers/sd.h"


/* Definitions of physical drive number for each drive */
#define DEV_SD  	0
#define DEV_NODEV	1


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

DSTATUS disk_status (
	BYTE pdrv		/* Physical drive nmuber to identify the drive */
){
	switch (pdrv) {
	case DEV_SD :
		return sd_status();

	}
	return STA_NOINIT;
}



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

DSTATUS disk_initialize (
	BYTE pdrv				/* Physical drive nmuber to identify the drive */
){

	switch (pdrv) {
	case DEV_SD :
            return sd_initialize();

	}
	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 */
)
{
	switch (pdrv) {
	case DEV_SD:

            return sd_read(buff, sector, count);

	}

	return RES_PARERR;
}



/*-----------------------------------------------------------------------*/
/* Write Sector(s)                                                       */
/*-----------------------------------------------------------------------*/

DRESULT disk_write (
	BYTE pdrv,			/* Physical drive nmuber to identify the drive */
	const BYTE *buff,	/* Data to be written */
	DWORD sector,		/* Start sector in LBA */
	UINT count			/* Number of sectors to write */
)
{
	switch (pdrv) {
	case DEV_SD :
	    return sd_write(buff, sector, count);

	}

	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 */
)
{
	switch (pdrv) {
	case DEV_SD :

		return sd_ioctl(cmd, buff);

	}

	return RES_PARERR;
}