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/***************************************************************************
* Copyright (C) 2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <string.h>
#define _FLASH_PRIVATE_
#include <cyg/io/flash.h>
int myprintf(char *format, ...)
{
return 0;
}
extern char _start_bss_clear;
extern char __bss_end__;
int init()
{
// set up runtime environment
char *t;
for (t=&_start_bss_clear; t<&__bss_end__; t++)
{
*t=0;
}
return flash_init((_printf *)&myprintf);
}
int checkFlash(void *addr, int len)
{
// Return error for illegal addresses
if ((addr<flash_info.start)||(addr>flash_info.end))
return FLASH_ERR_INVALID;
if ((((cyg_uint8 *)addr)+len)>(cyg_uint8 *)flash_info.end)
return FLASH_ERR_INVALID;
return FLASH_ERR_OK;
}
int erase(void *address, int len)
{
int retval;
void *failAddress;
retval=checkFlash(address, len);
if (retval!=0)
return retval;
retval=init();
if (retval!=0)
return retval;
return flash_erase(address, len, &failAddress);
}
extern char _end;
// Data follows immediately after program, long word aligned.
int program(void *buffer, void *address, int len)
{
int retval;
void *failAddress;
retval=checkFlash(address, len);
if (retval!=0)
return retval;
retval=init();
if (retval!=0)
return retval;
//int flash_program(void *_addr, void *_data, int len, void **err_addr)
return flash_program(address, buffer, len, &failAddress);
}
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