Documentation/dvb/get_dvb_firmware - fp2-dev/kernel/msm - Gitiles

 #!/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", "av7110", "dec2000t",
 		"dec2540t", "dec3000s", "vp7041", "dibusb", "nxt2002", "nxt2004",
 		"or51211", "or51132_qam", "or51132_vsb");

 # 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 "Firmware $outfile extracted successfully. Now copy it to either /lib/firmware or /usr/lib/hotplug/firmware/ (depending on your hotplug version).\n";
 	exit(0);
     }
 }

 # If we get here, it wasn't found
 print STDERR "Unknown component \"$cid\"\n";
 syntax();


 # ---------------------------------------------------------------
 # Firmware-specific extraction subroutines

 sub sp8870 {
     my $sourcefile = "tt_Premium_217g.zip";
     my $url = "http://www.technotrend.de/new/217g/$sourcefile";
     my $hash = "53970ec17a538945a6d8cb608a7b3899";
     my $outfile = "dvb-fe-sp8870.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     verify("$tmpdir/software/OEM/HE/App/boot/SC_MAIN.MC", $hash);
     copy("$tmpdir/software/OEM/HE/App/boot/SC_MAIN.MC", $outfile);

     $outfile;
 }

 sub sp887x {
     my $sourcefile = "Dvbt1.3.57.6.zip";
     my $url = "http://www.avermedia.com/software/$sourcefile";
     my $cabfile = "DVBT Net  Ver1.3.57.6/disk1/data1.cab";
     my $hash = "237938d53a7f834c05c42b894ca68ac3";
     my $outfile = "dvb-fe-sp887x.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();
     checkunshield();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     unshield("$tmpdir/$cabfile", $tmpdir);
     verify("$tmpdir/ZEnglish/sc_main.mc", $hash);
     copy("$tmpdir/ZEnglish/sc_main.mc", $outfile);

     $outfile;
 }

 sub tda10045 {
     my $sourcefile = "tt_budget_217g.zip";
     my $url = "http://www.technotrend.de/new/217g/$sourcefile";
     my $hash = "2105fd5bf37842fbcdfa4bfd58f3594a";
     my $outfile = "dvb-fe-tda10045.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x37ef9, 30555, "$tmpdir/fwtmp");
     verify("$tmpdir/fwtmp", $hash);
     copy("$tmpdir/fwtmp", $outfile);

     $outfile;
 }

 sub tda10046 {
     my $sourcefile = "tt_budget_217g.zip";
     my $url = "http://www.technotrend.de/new/217g/$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/software/OEM/PCI/App/ttlcdacc.dll", 0x3f731, 24478, "$tmpdir/fwtmp");
     verify("$tmpdir/fwtmp", $hash);
     copy("$tmpdir/fwtmp", $outfile);

     $outfile;
 }

 sub av7110 {
     my $sourcefile = "dvb-ttpci-01.fw-261d";
     my $url = "http://www.linuxtv.org/downloads/firmware/$sourcefile";
     my $hash = "603431b6259715a8e88f376a53b64e2f";
     my $outfile = "dvb-ttpci-01.fw";

     checkstandard();

     wgetfile($sourcefile, $url);
     verify($sourcefile, $hash);
     copy($sourcefile, $outfile);

     $outfile;
 }

 sub dec2000t {
     my $sourcefile = "dec217g.exe";
     my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
     my $hash = "bd86f458cee4a8f0a8ce2d20c66215a9";
     my $outfile = "dvb-ttusb-dec-2000t.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_T.bin", $hash);
     copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_T.bin", $outfile);

     $outfile;
 }

 sub dec2540t {
     my $sourcefile = "dec217g.exe";
     my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
     my $hash = "53e58f4f5b5c2930beee74a7681fed92";
     my $outfile = "dvb-ttusb-dec-2540t.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_X.bin", $hash);
     copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_X.bin", $outfile);

     $outfile;
 }

 sub dec3000s {
     my $sourcefile = "dec217g.exe";
     my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
     my $hash = "b013ececea83f4d6d8d2a29ac7c1b448";
     my $outfile = "dvb-ttusb-dec-3000s.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_S.bin", $hash);
     copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_S.bin", $outfile);

     $outfile;
 }

 sub vp7041 {
     my $sourcefile = "2.422.zip";
     my $url = "http://www.twinhan.com/files/driver/USB-Ter/$sourcefile";
     my $hash = "e88c9372d1f66609a3e7b072c53fbcfe";
     my $outfile = "dvb-vp7041-2.422.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     extract("$tmpdir/VisionDTV/Drivers/Win2K&XP/UDTTload.sys", 12503, 3036, "$tmpdir/fwtmp1");
     extract("$tmpdir/VisionDTV/Drivers/Win2K&XP/UDTTload.sys", 2207, 10274, "$tmpdir/fwtmp2");

     my $CMD = "\000\001\000\222\177\000";
     my $PAD = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000";
     my ($FW);
     open $FW, ">$tmpdir/fwtmp3";
     print $FW "$CMD\001$PAD";
     print $FW "$CMD\001$PAD";
     appendfile($FW, "$tmpdir/fwtmp1");
     print $FW "$CMD\000$PAD";
     print $FW "$CMD\001$PAD";
     appendfile($FW, "$tmpdir/fwtmp2");
     print $FW "$CMD\001$PAD";
     print $FW "$CMD\000$PAD";
     close($FW);

     verify("$tmpdir/fwtmp3", $hash);
     copy("$tmpdir/fwtmp3", $outfile);

     $outfile;
 }

 sub dibusb {
 	my $url = "http://www.linuxtv.org/downloads/firmware/dvb-dibusb-5.0.0.11.fw";
 	my $outfile = "dvb-dibusb-5.0.0.11.fw";
 	my $hash = "fa490295a527360ca16dcdf3224ca243";

 	checkstandard();

 	wgetfile($outfile, $url);
 	verify($outfile,$hash);

 	$outfile;
 }

 sub nxt2002 {
     my $sourcefile = "Broadband4PC_4_2_11.zip";
     my $url = "http://www.bbti.us/download/windows/$sourcefile";
     my $hash = "c6d2ea47a8f456d887ada0cfb718ff2a";
     my $outfile = "dvb-fe-nxt2002.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     verify("$tmpdir/SkyNETU.sys", $hash);
     extract("$tmpdir/SkyNETU.sys", 375832, 5908, $outfile);

     $outfile;
 }

 sub nxt2004 {
     my $sourcefile = "AVerTVHD_MCE_A180_Drv_v1.2.2.16.zip";
     my $url = "http://www.aver.com/support/Drivers/$sourcefile";
     my $hash = "111cb885b1e009188346d72acfed024c";
     my $outfile = "dvb-fe-nxt2004.fw";
     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

     checkstandard();

     wgetfile($sourcefile, $url);
     unzip($sourcefile, $tmpdir);
     verify("$tmpdir/3xHybrid.sys", $hash);
     extract("$tmpdir/3xHybrid.sys", 465304, 9584, $outfile);

     $outfile;
 }

 sub or51211 {
     my $fwfile = "dvb-fe-or51211.fw";
     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
     my $hash = "d830949c771a289505bf9eafc225d491";

     checkstandard();

     wgetfile($fwfile, $url);
     verify($fwfile, $hash);

     $fwfile;
 }

 sub or51132_qam {
     my $fwfile = "dvb-fe-or51132-qam.fw";
     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
     my $hash = "7702e8938612de46ccadfe9b413cb3b5";

     checkstandard();

     wgetfile($fwfile, $url);
     verify($fwfile, $hash);

     $fwfile;
 }

 sub or51132_vsb {
     my $fwfile = "dvb-fe-or51132-vsb.fw";
     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
     my $hash = "c16208e02f36fc439a557ad4c613364a";

     checkstandard();

     wgetfile($fwfile, $url);
     verify($fwfile, $hash);

     $fwfile;
 }

 # ---------------------------------------------------------------
 # 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 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);
 }
	#!/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", "av7110", "dec2000t",
	"dec2540t", "dec3000s", "vp7041", "dibusb", "nxt2002", "nxt2004",
	"or51211", "or51132_qam", "or51132_vsb");

	# 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 "Firmware $outfile extracted successfully. Now copy it to either /lib/firmware or /usr/lib/hotplug/firmware/ (depending on your hotplug version).\n";
	exit(0);
	}
	}

	# If we get here, it wasn't found
	print STDERR "Unknown component \"$cid\"\n";
	syntax();




	# ---------------------------------------------------------------
	# Firmware-specific extraction subroutines

	sub sp8870 {
	my $sourcefile = "tt_Premium_217g.zip";
	my $url = "http://www.technotrend.de/new/217g/$sourcefile";
	my $hash = "53970ec17a538945a6d8cb608a7b3899";
	my $outfile = "dvb-fe-sp8870.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/software/OEM/HE/App/boot/SC_MAIN.MC", $hash);
	copy("$tmpdir/software/OEM/HE/App/boot/SC_MAIN.MC", $outfile);

	$outfile;
	}

	sub sp887x {
	my $sourcefile = "Dvbt1.3.57.6.zip";
	my $url = "http://www.avermedia.com/software/$sourcefile";
	my $cabfile = "DVBT Net Ver1.3.57.6/disk1/data1.cab";
	my $hash = "237938d53a7f834c05c42b894ca68ac3";
	my $outfile = "dvb-fe-sp887x.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();
	checkunshield();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	unshield("$tmpdir/$cabfile", $tmpdir);
	verify("$tmpdir/ZEnglish/sc_main.mc", $hash);
	copy("$tmpdir/ZEnglish/sc_main.mc", $outfile);

	$outfile;
	}

	sub tda10045 {
	my $sourcefile = "tt_budget_217g.zip";
	my $url = "http://www.technotrend.de/new/217g/$sourcefile";
	my $hash = "2105fd5bf37842fbcdfa4bfd58f3594a";
	my $outfile = "dvb-fe-tda10045.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x37ef9, 30555, "$tmpdir/fwtmp");
	verify("$tmpdir/fwtmp", $hash);
	copy("$tmpdir/fwtmp", $outfile);

	$outfile;
	}

	sub tda10046 {
	my $sourcefile = "tt_budget_217g.zip";
	my $url = "http://www.technotrend.de/new/217g/$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/software/OEM/PCI/App/ttlcdacc.dll", 0x3f731, 24478, "$tmpdir/fwtmp");
	verify("$tmpdir/fwtmp", $hash);
	copy("$tmpdir/fwtmp", $outfile);

	$outfile;
	}

	sub av7110 {
	my $sourcefile = "dvb-ttpci-01.fw-261d";
	my $url = "http://www.linuxtv.org/downloads/firmware/$sourcefile";
	my $hash = "603431b6259715a8e88f376a53b64e2f";
	my $outfile = "dvb-ttpci-01.fw";

	checkstandard();

	wgetfile($sourcefile, $url);
	verify($sourcefile, $hash);
	copy($sourcefile, $outfile);

	$outfile;
	}

	sub dec2000t {
	my $sourcefile = "dec217g.exe";
	my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
	my $hash = "bd86f458cee4a8f0a8ce2d20c66215a9";
	my $outfile = "dvb-ttusb-dec-2000t.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_T.bin", $hash);
	copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_T.bin", $outfile);

	$outfile;
	}

	sub dec2540t {
	my $sourcefile = "dec217g.exe";
	my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
	my $hash = "53e58f4f5b5c2930beee74a7681fed92";
	my $outfile = "dvb-ttusb-dec-2540t.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_X.bin", $hash);
	copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_X.bin", $outfile);

	$outfile;
	}

	sub dec3000s {
	my $sourcefile = "dec217g.exe";
	my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
	my $hash = "b013ececea83f4d6d8d2a29ac7c1b448";
	my $outfile = "dvb-ttusb-dec-3000s.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_S.bin", $hash);
	copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_S.bin", $outfile);

	$outfile;
	}

	sub vp7041 {
	my $sourcefile = "2.422.zip";
	my $url = "http://www.twinhan.com/files/driver/USB-Ter/$sourcefile";
	my $hash = "e88c9372d1f66609a3e7b072c53fbcfe";
	my $outfile = "dvb-vp7041-2.422.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	extract("$tmpdir/VisionDTV/Drivers/Win2K&XP/UDTTload.sys", 12503, 3036, "$tmpdir/fwtmp1");
	extract("$tmpdir/VisionDTV/Drivers/Win2K&XP/UDTTload.sys", 2207, 10274, "$tmpdir/fwtmp2");

	my $CMD = "\000\001\000\222\177\000";
	my $PAD = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000";
	my ($FW);
	open $FW, ">$tmpdir/fwtmp3";
	print $FW "$CMD\001$PAD";
	print $FW "$CMD\001$PAD";
	appendfile($FW, "$tmpdir/fwtmp1");
	print $FW "$CMD\000$PAD";
	print $FW "$CMD\001$PAD";
	appendfile($FW, "$tmpdir/fwtmp2");
	print $FW "$CMD\001$PAD";
	print $FW "$CMD\000$PAD";
	close($FW);

	verify("$tmpdir/fwtmp3", $hash);
	copy("$tmpdir/fwtmp3", $outfile);

	$outfile;
	}

	sub dibusb {
	my $url = "http://www.linuxtv.org/downloads/firmware/dvb-dibusb-5.0.0.11.fw";
	my $outfile = "dvb-dibusb-5.0.0.11.fw";
	my $hash = "fa490295a527360ca16dcdf3224ca243";

	checkstandard();

	wgetfile($outfile, $url);
	verify($outfile,$hash);

	$outfile;
	}

	sub nxt2002 {
	my $sourcefile = "Broadband4PC_4_2_11.zip";
	my $url = "http://www.bbti.us/download/windows/$sourcefile";
	my $hash = "c6d2ea47a8f456d887ada0cfb718ff2a";
	my $outfile = "dvb-fe-nxt2002.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/SkyNETU.sys", $hash);
	extract("$tmpdir/SkyNETU.sys", 375832, 5908, $outfile);

	$outfile;
	}

	sub nxt2004 {
	my $sourcefile = "AVerTVHD_MCE_A180_Drv_v1.2.2.16.zip";
	my $url = "http://www.aver.com/support/Drivers/$sourcefile";
	my $hash = "111cb885b1e009188346d72acfed024c";
	my $outfile = "dvb-fe-nxt2004.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/3xHybrid.sys", $hash);
	extract("$tmpdir/3xHybrid.sys", 465304, 9584, $outfile);

	$outfile;
	}

	sub or51211 {
	my $fwfile = "dvb-fe-or51211.fw";
	my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
	my $hash = "d830949c771a289505bf9eafc225d491";

	checkstandard();

	wgetfile($fwfile, $url);
	verify($fwfile, $hash);

	$fwfile;
	}

	sub or51132_qam {
	my $fwfile = "dvb-fe-or51132-qam.fw";
	my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
	my $hash = "7702e8938612de46ccadfe9b413cb3b5";

	checkstandard();

	wgetfile($fwfile, $url);
	verify($fwfile, $hash);

	$fwfile;
	}

	sub or51132_vsb {
	my $fwfile = "dvb-fe-or51132-vsb.fw";
	my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
	my $hash = "c16208e02f36fc439a557ad4c613364a";

	checkstandard();

	wgetfile($fwfile, $url);
	verify($fwfile, $hash);

	$fwfile;
	}

	# ---------------------------------------------------------------
	# 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 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);
	}