gpxe/src/util/disrom.pl

   1 #!/usr/bin/perl -w
   2 #
   3 # Copyright (C) 2008 Michael Brown <mbrown@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 }