/* * (C) Copyright 2001 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it * * See file CREDITS for list of people who contributed to this * project. * * 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 <stdio.h> #include <stdlib.h> #include <unistd.h> #define __ASSEMBLY__ /* Dirty trick to get only #defines */ #include <config.h> #undef __ASSEMBLY__ #if defined(CFG_ENV_IS_IN_FLASH) # ifndef CFG_ENV_ADDR # define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) # endif # ifndef CFG_ENV_OFFSET # define CFG_ENV_OFFSET (CFG_ENV_ADDR - CFG_FLASH_BASE) # endif # if !defined(CFG_ENV_ADDR_REDUND) && defined(CFG_ENV_OFFSET_REDUND) # define CFG_ENV_ADDR_REDUND (CFG_FLASH_BASE + CFG_ENV_OFFSET_REDUND) # endif # ifndef CFG_ENV_SIZE # define CFG_ENV_SIZE CFG_ENV_SECT_SIZE # endif # if defined(CFG_ENV_ADDR_REDUND) && !defined(CFG_ENV_SIZE_REDUND) # define CFG_ENV_SIZE_REDUND CFG_ENV_SIZE # endif # if (CFG_ENV_ADDR >= CFG_MONITOR_BASE) && \ ((CFG_ENV_ADDR + CFG_ENV_SIZE) <= (CFG_MONITOR_BASE + CFG_MONITOR_LEN)) # define ENV_IS_EMBEDDED 1 # endif # if defined(CFG_ENV_ADDR_REDUND) || defined(CFG_ENV_OFFSET_REDUND) # define CFG_REDUNDAND_ENVIRONMENT 1 # endif #endif /* CFG_ENV_IS_IN_FLASH */ #ifdef CFG_REDUNDAND_ENVIRONMENT # define ENV_HEADER_SIZE (sizeof(unsigned long) + 1) #else # define ENV_HEADER_SIZE (sizeof(unsigned long)) #endif #define ENV_SIZE (CFG_ENV_SIZE - ENV_HEADER_SIZE) extern unsigned long crc32 (unsigned long, const unsigned char *, unsigned int); #ifdef ENV_IS_EMBEDDED extern unsigned int env_size; extern unsigned char environment; #endif /* ENV_IS_EMBEDDED */ int main (int argc, char **argv) { #ifdef ENV_IS_EMBEDDED int crc ; unsigned char *envptr = &environment, *dataptr = envptr + ENV_HEADER_SIZE; unsigned int datasize = ENV_SIZE; crc = crc32(0, dataptr, datasize) ; /* Check if verbose mode is activated passing a parameter to the program */ if (argc > 1) { printf("CRC32 from offset %08X to %08X of environment = %08X\n", (unsigned int)(dataptr - envptr), (unsigned int)(dataptr - envptr) + datasize, crc); } else { printf("0x%08X\n", crc); } #else printf("0\n"); #endif return EXIT_SUCCESS; }