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/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2013 */
/*-----------------------------------------------------------------------*/
/* 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 module to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include <stdint.h>
#include <stdio.h>
#include "ff.h" /* FatFs lower layer API */
#include "diskio.h" /* FatFs lower layer API */
#include "misc.h"
#include "storage.h"
PARTITION VolToPart[] = {
{0, 1}, // Logical drive 0 ==> Physical drive 0, 1st partition
/*
{0, 2}, // Logical drive 1 ==> Physical drive 0, 2nd partition
{0, 3}, // Logical drive 2 ==> Physical drive 0, 3rd partition
{1, 0}, // Logical drive 3 ==> Physical drive 1 (auto detection)
*/
};
/* Definitions of physical drive number for each media */
#define PD_FLASH (0)
#define PD_SD (1)
#define BLOCK_SIZE (512)
/*-----------------------------------------------------------------------*/
/* Initialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber (0..) */
)
{
switch (pdrv) {
case PD_FLASH :
storage_init();
return 0;
}
return STA_NOINIT;
}
/*-----------------------------------------------------------------------*/
/* Get Disk Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status (
BYTE pdrv /* Physical drive nmuber (0..) */
)
{
switch (pdrv) {
case PD_FLASH :
// flash is ready
return 0;
case PD_SD:
return STA_NOINIT;
}
return STA_NOINIT;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE *buff, /* Data buffer to store read data */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to read (1..128) */
)
{
switch (pdrv) {
case PD_FLASH:
for (int i = 0; i < count; i++) {
if (!storage_read_block(buff + i * BLOCK_SIZE, sector + i)) {
return RES_ERROR;
}
}
return RES_OK;
}
return RES_PARERR;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if _USE_WRITE
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber (0..) */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to write (1..128) */
)
{
switch (pdrv) {
case PD_FLASH:
for (int i = 0; i < count; i++) {
if (!storage_write_block(buff + i * BLOCK_SIZE, sector + i)) {
return RES_ERROR;
}
}
return RES_OK;
}
return RES_PARERR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
#if _USE_IOCTL
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
switch (pdrv) {
case PD_FLASH:
switch (cmd) {
case CTRL_SYNC:
storage_flush();
return RES_OK;
case GET_BLOCK_SIZE:
*((DWORD*)buff) = 1; // high-level sector erase size in units of the small (512) block size
return RES_OK;
}
}
return RES_PARERR;
}
#endif
DWORD get_fattime (
void
)
{
int year = 2013;
int month = 10;
int day = 12;
int hour = 21;
int minute = 42;
int second = 13;
return ((year - 1980) << 25) | ((month) << 21) | ((day) << 16) | ((hour) << 11) | ((minute) << 5) | (second / 2);
}
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