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|
#!/usr/bin/perl
# DVB firmware extractor
#
# (c) 2004 Andrew de Quincey
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
use File::Temp qw/ tempdir /;
use IO::Handle;
@components = ( "sp8870", "sp887x", "tda10045", "tda10046",
"tda10046lifeview", "av7110", "dec2000t", "dec2540t",
"dec3000s", "vp7041", "dibusb", "nxt2002", "nxt2004",
"or51211", "or51132_qam", "or51132_vsb", "bluebird",
"opera1", "cx231xx", "cx18", "cx23885", "pvrusb2", "mpc718",
"af9015");
# Check args
syntax() if (scalar(@ARGV) != 1);
$cid = $ARGV[0];
# Do it!
for ($i=0; $i < scalar(@components); $i++) {
if ($cid eq $components[$i]) {
$outfile = eval($cid);
die $@ if $@;
print STDERR <<EOF;
Firmware(s) $outfile extracted successfully.
Now copy it(they) to either /usr/lib/hotplug/firmware or /lib/firmware
(depending on configuration of firmware hotplug).
EOF
exit(0);
}
}
# If we get here, it wasn't found
print STDERR "Unknown component \"$cid\"\n";
syntax();
sub tda10046 {
my $sourcefile = "TT_PCI_2.19h_28_11_2006.zip";
my $url = "http://studio/$sourcefile";
my $hash = "6a7e1e2f2644b162ff0502367553c72d";
my $outfile = "dvb-fe-tda10046.fw";
my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
checkstandard();
wgetfile($sourcefile, $url);
unzip($sourcefile, $tmpdir);
extract("$tmpdir/TT_PCI_2.19h_28_11_2006/software/OEM/PCI/App/ttlcdacc.dll", 0x65389, 24478, "$tmpdir/fwtmp");
#verify("$tmpdir/fwtmp", $hash);
copy("$tmpdir/fwtmp", $outfile);
$outfile;
}
# ---------------------------------------------------------------
# Utilities
sub checkstandard {
if (system("which unzip > /dev/null 2>&1")) {
die "This firmware requires the unzip command - see ftp://ftp.info-zip.org/pub/infozip/UnZip.html\n";
}
if (system("which md5sum > /dev/null 2>&1")) {
die "This firmware requires the md5sum command - see http://www.gnu.org/software/coreutils/\n";
}
if (system("which wget > /dev/null 2>&1")) {
die "This firmware requires the wget command - see http://wget.sunsite.dk/\n";
}
}
sub checkunshield {
if (system("which unshield > /dev/null 2>&1")) {
die "This firmware requires the unshield command - see http://sourceforge.net/projects/synce/\n";
}
}
sub wgetfile {
my ($sourcefile, $url) = @_;
if (! -f $sourcefile) {
system("wget -O \"$sourcefile\" \"$url\"") and die "wget failed - unable to download firmware";
}
}
sub unzip {
my ($sourcefile, $todir) = @_;
$status = system("unzip -q -o -d \"$todir\" \"$sourcefile\" 2>/dev/null" );
if ((($status >> 8) > 2) || (($status & 0xff) != 0)) {
die ("unzip failed - unable to extract firmware");
}
}
sub unshield {
my ($sourcefile, $todir) = @_;
system("unshield x -d \"$todir\" \"$sourcefile\" > /dev/null" ) and die ("unshield failed - unable to extract firmware");
}
sub verify {
my ($filename, $hash) = @_;
my ($testhash);
open(CMD, "md5sum \"$filename\"|");
$testhash = <CMD>;
$testhash =~ /([a-zA-Z0-9]*)/;
$testhash = $1;
close CMD;
die "Hash of extracted file does not match!\n" if ($testhash ne $hash);
}
sub copy {
my ($from, $to) = @_;
system("cp -f \"$from\" \"$to\"") and die ("cp failed");
}
sub extract {
my ($infile, $offset, $length, $outfile) = @_;
my ($chunklength, $buf, $rcount);
open INFILE, "<$infile";
open OUTFILE, ">$outfile";
sysseek(INFILE, $offset, SEEK_SET);
while($length > 0) {
# Calc chunk size
$chunklength = 2048;
$chunklength = $length if ($chunklength > $length);
$rcount = sysread(INFILE, $buf, $chunklength);
die "Ran out of data\n" if ($rcount != $chunklength);
syswrite(OUTFILE, $buf);
$length -= $rcount;
}
close INFILE;
close OUTFILE;
}
sub appendfile {
my ($FH, $infile) = @_;
my ($buf);
open INFILE, "<$infile";
while(1) {
$rcount = sysread(INFILE, $buf, 2048);
last if ($rcount == 0);
print $FH $buf;
}
close(INFILE);
}
sub delzero{
my ($infile,$outfile) =@_;
open INFILE,"<$infile";
open OUTFILE,">$outfile";
while (1){
$rcount=sysread(INFILE,$buf,22);
$len=ord(substr($buf,0,1));
print OUTFILE substr($buf,0,1);
print OUTFILE substr($buf,2,$len+3);
last if ($rcount<1);
printf OUTFILE "%c",0;
#print $len." ".length($buf)."\n";
}
close(INFILE);
close(OUTFILE);
}
sub syntax() {
print STDERR "syntax: get_dvb_firmware <component>\n";
print STDERR "Supported components:\n";
for($i=0; $i < scalar(@components); $i++) {
print STDERR "\t" . $components[$i] . "\n";
}
exit(1);
}
|
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