/*-----------------------------------------------------------------------*/
/* 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 "debug.h"
#include "bsp_spi_sd.h"

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

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



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

DSTATUS disk_initialize (
	BYTE pdrv				/* Physical drive nmuber to identify the drive */
)
{
	if(spisd_init() == SPISD_RESULT_OK) {
		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 */
	LBA_t sector,	/* Start sector in LBA */
	UINT count		/* Number of sectors to read */
)
{
	spisd_result_t sd_result;

	if (count == 1) {
		sd_result = spisd_read_block(sector, (uint8_t*)buff);
	} else {
		sd_result = spisd_read_multi_block(sector, (uint8_t*)buff, count);
	}

	if(sd_result == SPISD_RESULT_OK) {
		return RES_OK;
	}

    LOG_E("error while reading disk, error code=%d", sd_result);
	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 */
)
{
	DRESULT res;
	int result;

	switch (pdrv) {
	case DEV_RAM :
		// translate the arguments here

		result = RAM_disk_write(buff, sector, count);

		// translate the reslut code here

		return res;

	case DEV_MMC :
		// translate the arguments here

		result = MMC_disk_write(buff, sector, count);

		// translate the reslut code here

		return res;

	case DEV_USB :
		// translate the arguments here

		result = USB_disk_write(buff, sector, count);

		// translate the reslut code here

		return res;
	}

	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 */
)
{
	switch(cmd) {
	case CTRL_SYNC:
		return RES_OK;
	default:
		return RES_PARERR;
	}
}