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      1 #!/usr/bin/perl -w
      2 #
      3 # Copyright (C) 2008 Michael Brown <mbrown (at] fensystems.co.uk>.
      4 #
      5 # This program is free software; you can redistribute it and/or
      6 # modify it under the terms of the GNU General Public License as
      7 # published by the Free Software Foundation; either version 2 of the
      8 # License, or any later version.
      9 #
     10 # This program is distributed in the hope that it will be useful, but
     11 # WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13 # General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU General Public License
     16 # along with this program; if not, write to the Free Software
     17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
     18 
     19 use strict;
     20 use warnings;
     21 
     22 use FindBin;
     23 use lib "$FindBin::Bin";
     24 use Option::ROM qw ( :all );
     25 
     26 my $romfile = shift || "-";
     27 my $rom = new Option::ROM;
     28 $rom->load ( $romfile );
     29 
     30 die "Not an option ROM image\n"
     31     unless $rom->{signature} == ROM_SIGNATURE;
     32 
     33 my $romlength = ( $rom->{length} * 512 );
     34 my $filelength = $rom->length;
     35 die "ROM image truncated (is $filelength, should be $romlength)\n"
     36     if $filelength < $romlength;
     37 
     38 printf "ROM header:\n\n";
     39 printf "  %-16s 0x%02x (%d)\n", "Length:", $rom->{length}, ( $rom->{length} * 512 );
     40 printf "  %-16s 0x%02x (%s0x%02x)\n", "Checksum:", $rom->{checksum},
     41        ( ( $rom->checksum == 0 ) ? "" : "INCORRECT: " ), $rom->checksum;
     42 printf "  %-16s 0x%04x\n", "Init:", $rom->{init};
     43 printf "  %-16s 0x%04x\n", "UNDI header:", $rom->{undi_header};
     44 printf "  %-16s 0x%04x\n", "PCI header:", $rom->{pci_header};
     45 printf "  %-16s 0x%04x\n", "PnP header:", $rom->{pnp_header};
     46 printf "\n";
     47 
     48 my $pci = $rom->pci_header();
     49 if ( $pci ) {
     50   printf "PCI header:\n\n";
     51   printf "  %-16s %s\n", "Signature:", $pci->{signature};
     52   printf "  %-16s 0x%04x\n", "Vendor ID:", $pci->{vendor_id};
     53   printf "  %-16s 0x%04x\n", "Device ID:", $pci->{device_id};
     54   printf "  %-16s 0x%02x%02x%02x\n", "Device class:",
     55 	 $pci->{base_class}, $pci->{sub_class}, $pci->{prog_intf};
     56   printf "  %-16s 0x%04x (%d)\n", "Image length:",
     57 	 $pci->{image_length}, ( $pci->{image_length} * 512 );
     58   printf "  %-16s 0x%04x (%d)\n", "Runtime length:",
     59 	 $pci->{runtime_length}, ( $pci->{runtime_length} * 512 );
     60   if ( exists $pci->{conf_header} ) {
     61     printf "  %-16s 0x%04x\n", "Config header:", $pci->{conf_header};
     62     printf "  %-16s 0x%04x\n", "CLP entry:", $pci->{clp_entry};
     63   }
     64   printf "\n";
     65 }
     66 
     67 my $pnp = $rom->pnp_header();
     68 if ( $pnp ) {
     69   printf "PnP header:\n\n";
     70   printf "  %-16s %s\n", "Signature:", $pnp->{signature};
     71   printf "  %-16s 0x%02x (%s0x%02x)\n", "Checksum:", $pnp->{checksum},
     72 	 ( ( $pnp->checksum == 0 ) ? "" : "INCORRECT: " ), $pnp->checksum;
     73   printf "  %-16s 0x%04x \"%s\"\n", "Manufacturer:",
     74 	 $pnp->{manufacturer}, $pnp->manufacturer;
     75   printf "  %-16s 0x%04x \"%s\"\n", "Product:",
     76 	 $pnp->{product}, $pnp->product;
     77   printf "  %-16s 0x%04x\n", "BCV:", $pnp->{bcv};
     78   printf "  %-16s 0x%04x\n", "BDV:", $pnp->{bdv};
     79   printf "  %-16s 0x%04x\n", "BEV:", $pnp->{bev};
     80   printf "\n";
     81 }
     82