find_file.c

См. документацию.

/*
 *  CMSIS2000
 *  CMSIS-like sources for LPC2xxx series MCUs
 *
 *  (C) Copyright 2011-2012, Dmitriy Cherepanov, All Rights Reserved
 *
 *  Version: 0.0.7
 *  Date of the Last Update:  2013-03-04
 *  
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to
 *  deal in the Software without restriction, including without limitation the
 *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 *  sell copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 *  IN THE SOFTWARE.
 *
 *  Do not be lasy! For the latest version see http://irtos.sourceforge.net .
 *
 *  
#*/
/*----------------------------------------------------------------------------*/
/**
\file uboot file load from fat fs
\author Cherepanov Dmitiy
*/
/*----------------------------------------------------------------------------*/
#include "ff.h"
#include "../uboot/uboot_load_file.h"

#include <stdint.h>
#include <string.h>


#define PRINT_Log(a,b)
#ifndef FILENAME_prog_bin
        #define FILENAME_prog_bin "uboot_firmware.h"
#endif

extern char disk_initialize (char) ; //из драйверов - переменная показываюшая статус
FATFS Fatfs[_VOLUMES];          /* File system object for each logical drive */
/**
find and load uboot file at external flash or something else
 and load to MCU after free_space_start adress
 \par  free_space_start
 \return address of image placed or 0 if load is failed
*/
void load_file_from_external_source_to(void * free_area_adress)
{
FIL     fdw;
uint_fast8_t i,vol =  _VOLUMES;
        for (i =0; i<_VOLUMES; i++){/* for each local drive */
                if (disk_initialize(i) == 0){
                        f_mount(i, &Fatfs[i]);
                        memset(&fdw,0,sizeof(fdw));
                        if (f_open(&fdw,FILENAME_prog_bin,FA_OPEN_EXISTING | FA_READ) == FR_OK)
                        {
                                free_area_adress = load_uboot_file(&fdw,free_area_adress);
                                f_close(&fdw);
                        } else {
                            PRINT_Log("Could not open load file %s\n", FILENAME_prog_bin);
                            return;
                        }
                        f_mount(i,(void *) 0); // eqivalent to f_umount()
                        //f_umount(i, &Fatfs[i]);
                        //disk_ioctl CTRL_EJECT()
                }
        }
}