2008-02-28 03:30:06 -06:00
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/***************************************************************************
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* Copyright (C) 2008 <EFBFBD>yvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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2008-02-28 02:25:46 -06:00
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#include <string.h>
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#define _FLASH_PRIVATE_
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#include <cyg/io/flash.h>
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int myprintf(char *format, ...)
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{
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return 0;
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}
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extern char _start_bss_clear;
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extern char __bss_end__;
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int init()
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{
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// set up runtime environment
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char *t;
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for (t=&_start_bss_clear; t<&__bss_end__; t++)
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{
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*t=0;
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}
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return flash_init((_printf *)&myprintf);
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}
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int checkFlash(void *addr, int len)
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{
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// Return error for illegal addresses
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if ((addr<flash_info.start)||(addr>flash_info.end))
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return FLASH_ERR_INVALID;
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if ((((cyg_uint8 *)addr)+len)>(cyg_uint8 *)flash_info.end)
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return FLASH_ERR_INVALID;
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return FLASH_ERR_OK;
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}
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int erase(void *address, int len)
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{
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int retval;
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void *failAddress;
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retval=checkFlash(address, len);
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if (retval!=0)
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return retval;
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retval=init();
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if (retval!=0)
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return retval;
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return flash_erase(address, len, &failAddress);
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}
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extern char _end;
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// Data follows immediately after program, long word aligned.
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int program(void *buffer, void *address, int len)
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{
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int retval;
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void *failAddress;
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retval=checkFlash(address, len);
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if (retval!=0)
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return retval;
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retval=init();
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if (retval!=0)
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return retval;
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//int flash_program(void *_addr, void *_data, int len, void **err_addr)
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return flash_program(address, buffer, len, &failAddress);
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}
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