105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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#####ECOSGPLCOPYRIGHTBEGIN####
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## -------------------------------------------
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## This file is part of eCos, the Embedded Configurable Operating System.
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## Copyright (C) 2008 Øyvind Harboe
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##
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## eCos is free software; you can redistribute it and/or modify it under
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## the terms of the GNU General Public License as published by the Free
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## Software Foundation; either version 2 or (at your option) any later version.
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##
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## eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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## WARRANTY; without even the implied warranty of MERCHANTABILITY or
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## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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## for more details.
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##
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## You should have received a copy of the GNU General Public License along
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## with eCos; if not, write to the Free Software Foundation, Inc.,
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## 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## As a special exception, if other files instantiate templates or use macros
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## or inline functions from this file, or you compile this file and link it
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## with other works to produce a work based on this file, this file does not
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## by itself cause the resulting work to be covered by the GNU General Public
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## License. However the source code for this file must still be made available
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## in accordance with section (3) of the GNU General Public License.
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##
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## This exception does not invalidate any other reasons why a work based on
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## this file might be covered by the GNU General Public License.
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## -------------------------------------------
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#####ECOSGPLCOPYRIGHTEND####
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*/
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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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