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#!/usr/bin/perl -w
# Extract Symbol firmware and convert is to a header file and two binary
# files.
# Copyright (C) 2004 Pavel Roskin <proski@gnu.org>
# This script is Free Software, and it can be copied, distributed and
# modified as defined in the GNU General Public License. A copy of
# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
# Usage:
# parse_symbol_fw infile header binfile1 binfile2
use strict;
# Print message and exit (like "die", but without raising an exception).
# Newline is added at the end.
sub error
{
printf STDERR "ERROR: ";
printf STDERR @_;
printf STDERR "\n";
exit 1;
}
sub readnum_ba ()
{
my $byte_a;
read INFILE,$byte_a,1;
my $byte_b;
read INFILE,$byte_b,1;
return (ord($byte_b) << 8) + ord($byte_a);
}
if ($#ARGV != 3) {
error ("Usage: parse_symbol_fw infile header binfile1 binfile2");
}
unless (open (INFILE, "< $ARGV[0]")) {
error ("couldn't open $ARGV[0] for reading: $!");
}
unless (open (OUTFILE, "> $ARGV[1]")) {
error ("couldn't open $ARGV[1] for writing: $!");
}
# Process one array, either for primary or for secondary firmware
sub process_one_array($$) {
my $arrname = shift(@_);
my $binfile = shift(@_);
my $offset = -1;
my $str_offset = 0;
# Skip to the beginning of firmware
$/ = "\x00";
while (<INFILE>) {
if (m{FILE: }g) {
$offset = $str_offset + pos() - 6;
last;
}
$str_offset = tell(INFILE);
}
if ($offset == -1) {
error("Cannot find FILE: marker");
}
my @fwdata = split;
print $fwdata[1] . "\n";
seek(INFILE, $offset, 0);
my $blknum = $fwdata[3];
my $pdrlen = $fwdata[4];
my $crclen = $fwdata[5];
my $compatlen = $fwdata[6];
while (!eof(INFILE)) {
my $byte;
read INFILE, $byte, 1;
last if (ord($byte) == 0x1a);
}
# Walk all blocks
my $block = $blknum;
while ($block-- > 0) {
seek(INFILE, 4, 1);
my $len = readnum_ba();
seek(INFILE, $len, 1);
}
my $img_len = tell(INFILE) - $offset + $pdrlen + $crclen + $compatlen + 2;
seek(INFILE, $offset, 0);
# Write binary file for the section
unless (open (BINFILE, "> $binfile")) {
error ("couldn't open $binfile for writing: $!");
}
# Output the array
printf OUTFILE "/* %s %s */\n", $fwdata[1], $fwdata[2];
printf OUTFILE "static u8 %s[] = {\n", $arrname;
my $count = 0;
while ($count++ < $img_len) {
my $byte;
read INFILE, $byte, 1;
$byte = ord($byte);
printf OUTFILE "0x%02x,", $byte;
printf BINFILE "%c", $byte;
if ($count % 16 == 0) {
printf OUTFILE "\n";
}
}
if ($img_len % 16) {
printf OUTFILE "\n";
}
print OUTFILE "};\n";
close(BINFILE);
}
process_one_array("primsym", $ARGV[2]);
process_one_array("secsym", $ARGV[3]);
close(INFILE);
close(OUTFILE);
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