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/*----------------------------------------------------------------------*/

/* FatFs sample project for generic microcontrollers (C)ChaN, 2012      */

/*----------------------------------------------------------------------*/

#include <stdio.h>

#include "../common/fatfs/ff.h"

#include "../common/libsoc/src/hw.h"

FATFS Fatfs;            /* File system object */

FIL Fil;                        /* File object */

BYTE Buff[128];         /* File read buffer */

void die (              /* Stop with dying message */

        FRESULT rc      /* FatFs return value */

)

{

    switch(rc){

    case FR_NOT_READY:      printf("Disk absent."); break;

    case FR_DISK_ERR:       printf("Low level disk i/o error."); break;

    case FR_NO_FILESYSTEM:  printf("No valid filesystem in drive."); break;

    case FR_NO_FILE:        printf("File not found."); break;

    default:                printf("Failed with rc=%u.", rc); break;

    }

    printf("\n");

        for (;;) ;

}

/*-----------------------------------------------------------------------*/

/* Program Main                                                          */

/*-----------------------------------------------------------------------*/

int main (void)

{

        FRESULT rc;                             /* Result code */

        UINT br, i;

    BYTE *target = (BYTE *)0x00000000;

    UINT wr_index = 0;

    void (*target_fn)(void) = (void *)0x00000000;

    printf("ION SD loader -- " __DATE__ "\n\n");

        f_mount(0, &Fatfs);              /* Register volume work area (never fails) */

        rc = f_open(&Fil, "CODE.BIN", FA_READ);

        if (rc) die(rc);

    printf("Loading file '/code.bin' onto RAM at address 0x00000000...\n");

        for (;;) {

                rc = f_read(&Fil, Buff, sizeof Buff, &br);      /* Read a chunk of file */

                if (rc || !br) break;                   /* Error or end of file */

                for (i = 0; i < br; i++){       /* Type the data */

                        target[wr_index] = Buff[i];

            wr_index++;

        }

        if(wr_index > 256*1024) break;

        }

        if (rc) die(rc);

        rc = f_close(&Fil);

        if (rc) die(rc);

    printf("Done. Read %u bytes.\n", wr_index);

    printf("Transferring control to address 0x00000000\n\n");

    target_fn();

        for (;;) ;

}

/*---------------------------------------------------------*/

/* User Provided Timer Function for FatFs module           */

/*---------------------------------------------------------*/

DWORD get_fattime (void)

{

        return    ((DWORD)(2012 - 1980) << 25)  /* Year = 2012 */

                        | ((DWORD)1 << 21)                              /* Month = 1 */

                        | ((DWORD)1 << 16)                              /* Day_m = 1*/

                        | ((DWORD)0 << 11)                               /* Hour = 0 */

                        | ((DWORD)0 << 5)                                /* Min = 0 */

                        | ((DWORD)0 >> 1);                               /* Sec = 0 */

}