poky/openembedded/packages/orinoco/spectrum-fw/parse_symbol_fw

#!/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);