Revision 595d153dd1022392083ac93a1550382cbee127e0 authored by Michael Ellerman on 26 May 2020, 06:18:08 UTC, committed by Michael Ellerman on 26 May 2020, 07:32:37 UTC
Commit 702f09805222 ("powerpc/64s/exception: Remove lite interrupt
return") changed the interrupt return path to not restore non-volatile
registers by default, and explicitly restore them in paths where it is
required.

But it missed that the facility unavailable exception can sometimes
modify user registers, ie. when it does emulation of move from DSCR.

This is seen as a failure of the dscr_sysfs_thread_test:
  test: dscr_sysfs_thread_test
  [cpu 0] User DSCR should be 1 but is 0
  failure: dscr_sysfs_thread_test

So restore non-volatile GPRs after facility unavailable exceptions.

Currently the hypervisor facility unavailable exception is also wired
up to call facility_unavailable_exception().

In practice we should never take a hypervisor facility unavailable
exception for the DSCR. On older bare metal systems we set HFSCR_DSCR
unconditionally in __init_HFSCR, or on newer systems it should be
enabled via the "data-stream-control-register" device tree CPU
feature.

Even if it's not, since commit f3c99f97a3cd ("KVM: PPC: Book3S HV:
Don't access HFSCR, LPIDR or LPCR when running nested"), the KVM code
has unconditionally set HFSCR_DSCR when running guests.

So we should only get a hypervisor facility unavailable for the DSCR
if skiboot has disabled the "data-stream-control-register" feature,
and we are somehow in guest context but not via KVM.

Given all that, it should be unnecessary to add a restore of
non-volatile GPRs after the hypervisor facility exception, because we
never expect to hit that path. But equally we may as well add the
restore, because we never expect to hit that path, and if we ever did,
at least we would correctly restore the registers to their post
emulation state.

In future we can split the non-HV and HV facility unavailable handling
so that there is no emulation in the HV handler, and then remove the
restore for the HV case.

Fixes: 702f09805222 ("powerpc/64s/exception: Remove lite interrupt return")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200526061808.2472279-1-mpe@ellerman.id.au
1 parent 8659a0e
Raw File
get_dvb_firmware
#!/usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0-or-later
#     DVB firmware extractor
#
#     (c) 2004 Andrew de Quincey
#

use File::Temp qw/ tempdir /;
use IO::Handle;

@components = ( "sp8870", "sp887x", "tda10045", "tda10046",
		"tda10046lifeview", "av7110", "dec2000t", "dec2540t",
		"dec3000s", "vp7041", "vp7049", "dibusb", "nxt2002", "nxt2004",
		"or51211", "or51132_qam", "or51132_vsb", "bluebird",
		"opera1", "cx231xx", "cx18", "cx23885", "pvrusb2", "mpc718",
		"af9015", "ngene", "az6027", "lme2510_lg", "lme2510c_s7395",
		"lme2510c_s7395_old", "drxk", "drxk_terratec_h5",
		"drxk_hauppauge_hvr930c", "tda10071", "it9135", "drxk_pctv",
		"drxk_terratec_htc_stick", "sms1xxx_hcw", "si2165");

# 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(them) 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();




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

sub sp8870 {
    my $sourcefile = "tt_Premium_217g.zip";
    my $url = "http://www.softwarepatch.pl/9999ccd06a4813cb827dbb0005071c71/$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_PCI_2.19h_28_11_2006.zip";
	my $url = "http://technotrend.com.ua/download/software/219/$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;
}

sub tda10046lifeview {
    my $sourcefile = "7%5Cdrv_2.11.02.zip";
    my $url = "http://www.lifeview.hk/dbimages/document/$sourcefile";
    my $hash = "1ea24dee4eea8fe971686981f34fd2e0";
    my $outfile = "dvb-fe-tda10046.fw";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

    checkstandard();

    wgetfile($sourcefile, $url);
    unzip($sourcefile, $tmpdir);
    extract("$tmpdir/LVHybrid.sys", 0x8b088, 24602, "$tmpdir/fwtmp");
    verify("$tmpdir/fwtmp", $hash);
    copy("$tmpdir/fwtmp", $outfile);

    $outfile;
}

sub av7110 {
    my $sourcefile = "dvb-ttpci-01.fw-261d";
    my $url = "https://linuxtv.org/downloads/firmware/$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 opera1{
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 0);

	checkstandard();
	my $fwfile1="dvb-usb-opera1-fpga-01.fw";
	my $fwfile2="dvb-usb-opera-01.fw";
	extract("2830SCap2.sys", 0x62e8, 55024, "$tmpdir/opera1-fpga.fw");
	extract("2830SLoad2.sys",0x3178,0x3685-0x3178,"$tmpdir/fw1part1");
	extract("2830SLoad2.sys",0x0980,0x3150-0x0980,"$tmpdir/fw1part2");
	delzero("$tmpdir/fw1part1","$tmpdir/fw1part1-1");
	delzero("$tmpdir/fw1part2","$tmpdir/fw1part2-1");
	verify("$tmpdir/fw1part1-1","5e0909858fdf0b5b09ad48b9fe622e70");
	verify("$tmpdir/fw1part2-1","d6e146f321427e931df2c6fcadac37a1");
	verify("$tmpdir/opera1-fpga.fw","0f8133f5e9051f5f3c1928f7e5a1b07d");

	my $RES1="\x01\x92\x7f\x00\x01\x00";
	my $RES0="\x01\x92\x7f\x00\x00\x00";
	my $DAT1="\x01\x00\xe6\x00\x01\x00";
	my $DAT0="\x01\x00\xe6\x00\x00\x00";
	open FW,">$tmpdir/opera.fw";
	print FW "$RES1";
	print FW "$DAT1";
	print FW "$RES1";
	print FW "$DAT1";
	appendfile(FW,"$tmpdir/fw1part1-1");
	print FW "$RES0";
	print FW "$DAT0";
	print FW "$RES1";
	print FW "$DAT1";
	appendfile(FW,"$tmpdir/fw1part2-1");
	print FW "$RES1";
	print FW "$DAT1";
	print FW "$RES0";
	print FW "$DAT0";
	copy ("$tmpdir/opera1-fpga.fw",$fwfile1);
	copy ("$tmpdir/opera.fw",$fwfile2);

	$fwfile1.",".$fwfile2;
}

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 vp7049 {
    my $fwfile = "dvb-usb-vp7049-0.95.fw";
    my $url = "http://ao2.it/sites/default/files/blog/2012/11/06/linux-support-digicom-digitune-s-vp7049-udtt7049/$fwfile";
    my $hash = "5609fd295168aea88b25ff43a6f79c36";

    checkstandard();

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

    $fwfile;
}

sub dibusb {
	my $url = "https://linuxtv.org/downloads/firmware/dvb-usb-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 = "Technisat_DVB-PC_4_4_COMPACT.zip";
    my $url = "http://www.bbti.us/download/windows/$sourcefile";
    my $hash = "476befae8c7c1bb9648954060b1eec1f";
    my $outfile = "dvb-fe-nxt2002.fw";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

    checkstandard();

    wgetfile($sourcefile, $url);
    unzip($sourcefile, $tmpdir);
    verify("$tmpdir/SkyNET.sys", $hash);
    extract("$tmpdir/SkyNET.sys", 331624, 5908, $outfile);

    $outfile;
}

sub nxt2004 {
    my $sourcefile = "AVerTVHD_MCE_A180_Drv_v1.2.2.16.zip";
    my $url = "http://www.avermedia-usa.com/support/Drivers/$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 $url = "https://linuxtv.org/downloads/firmware/$fwfile";
    my $hash = "d830949c771a289505bf9eafc225d491";

    checkstandard();

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

    $fwfile;
}

sub cx231xx {
    my $fwfile = "v4l-cx231xx-avcore-01.fw";
    my $url = "https://linuxtv.org/downloads/firmware/$fwfile";
    my $hash = "7d3bb956dc9df0eafded2b56ba57cc42";

    checkstandard();

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

    $fwfile;
}

sub cx18 {
    my $url = "https://linuxtv.org/downloads/firmware/";

    my %files = (
	'v4l-cx23418-apu.fw' => '588f081b562f5c653a3db1ad8f65939a',
	'v4l-cx23418-cpu.fw' => 'b6c7ed64bc44b1a6e0840adaeac39d79',
	'v4l-cx23418-dig.fw' => '95bc688d3e7599fd5800161e9971cc55',
    );

    checkstandard();

    my $allfiles;
    foreach my $fwfile (keys %files) {
	wgetfile($fwfile, "$url/$fwfile");
	verify($fwfile, $files{$fwfile});
	$allfiles .= " $fwfile";
    }

    $allfiles =~ s/^\s//;

    $allfiles;
}

sub mpc718 {
    my $archive = 'Yuan MPC718 TV Tuner Card 2.13.10.1016.zip';
    my $url = "ftp://ftp.work.acer-euro.com/desktop/aspire_idea510/vista/Drivers/$archive";
    my $fwfile = "dvb-cx18-mpc718-mt352.fw";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

    checkstandard();
    wgetfile($archive, $url);
    unzip($archive, $tmpdir);

    my $sourcefile = "$tmpdir/Yuan MPC718 TV Tuner Card 2.13.10.1016/mpc718_32bit/yuanrap.sys";
    my $found = 0;

    open IN, '<', $sourcefile or die "Couldn't open $sourcefile to extract $fwfile data\n";
    binmode IN;
    open OUT, '>', $fwfile;
    binmode OUT;
    {
	# Block scope because we change the line terminator variable $/
	my $prevlen = 0;
	my $currlen;

	# Buried in the data segment are 3 runs of almost identical
	# register-value pairs that end in 0x5d 0x01 which is a "TUNER GO"
	# command for the MT352.
	# Pull out the middle run (because it's easy) of register-value
	# pairs to make the "firmware" file.

	local $/ = "\x5d\x01"; # MT352 "TUNER GO"

	while (<IN>) {
	    $currlen = length($_);
	    if ($prevlen == $currlen && $currlen <= 64) {
		chop; chop; # Get rid of "TUNER GO"
		s/^\0\0//;  # get rid of leading 00 00 if it's there
		printf OUT "$_";
		$found = 1;
		last;
	    }
	    $prevlen = $currlen;
	}
    }
    close OUT;
    close IN;
    if (!$found) {
	unlink $fwfile;
	die "Couldn't find valid register-value sequence in $sourcefile for $fwfile\n";
    }
    $fwfile;
}

sub cx23885 {
    my $url = "https://linuxtv.org/downloads/firmware/";

    my %files = (
	'v4l-cx23885-avcore-01.fw' => 'a9f8f5d901a7fb42f552e1ee6384f3bb',
	'v4l-cx23885-enc.fw'       => 'a9f8f5d901a7fb42f552e1ee6384f3bb',
    );

    checkstandard();

    my $allfiles;
    foreach my $fwfile (keys %files) {
	wgetfile($fwfile, "$url/$fwfile");
	verify($fwfile, $files{$fwfile});
	$allfiles .= " $fwfile";
    }

    $allfiles =~ s/^\s//;

    $allfiles;
}

sub pvrusb2 {
    my $url = "https://linuxtv.org/downloads/firmware/";

    my %files = (
	'v4l-cx25840.fw'           => 'dadb79e9904fc8af96e8111d9cb59320',
    );

    checkstandard();

    my $allfiles;
    foreach my $fwfile (keys %files) {
	wgetfile($fwfile, "$url/$fwfile");
	verify($fwfile, $files{$fwfile});
	$allfiles .= " $fwfile";
    }

    $allfiles =~ s/^\s//;

    $allfiles;
}

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

    checkstandard();

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

    $fwfile;
}

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

    checkstandard();

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

    $fwfile;
}

sub bluebird {
	my $url = "https://linuxtv.org/download/dvb/firmware/dvb-usb-bluebird-01.fw";
	my $outfile = "dvb-usb-bluebird-01.fw";
	my $hash = "658397cb9eba9101af9031302671f49d";

	checkstandard();

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

	$outfile;
}

sub af9015 {
	my $sourcefile = "download.ashx?file=57";
	my $url = "http://www.ite.com.tw/EN/Services/$sourcefile";
	my $hash = "e3f08935158038d385ad382442f4bb2d";
	my $outfile = "dvb-usb-af9015.fw";
	my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
	my $fwoffset = 0x25690;
	my $fwlength = 18725;
	my ($chunklength, $buf, $rcount);

	checkstandard();

	wgetfile($sourcefile, $url);
	unzip($sourcefile, $tmpdir);
	verify("$tmpdir/Driver/Files/AF15BDA.sys", $hash);

	open INFILE, '<', "$tmpdir/Driver/Files/AF15BDA.sys";
	open OUTFILE, '>', $outfile;

	sysseek(INFILE, $fwoffset, SEEK_SET);
	while($fwlength > 0) {
		$chunklength = 55;
		$chunklength = $fwlength if ($chunklength > $fwlength);
		$rcount = sysread(INFILE, $buf, $chunklength);
		die "Ran out of data\n" if ($rcount != $chunklength);
		syswrite(OUTFILE, $buf);
		sysread(INFILE, $buf, 8);
		$fwlength -= $rcount + 8;
	}

	close OUTFILE;
	close INFILE;
}

sub ngene {
    my $url = "http://www.digitaldevices.de/download/";
    my $file1 = "ngene_15.fw";
    my $hash1 = "d798d5a757121174f0dbc5f2833c0c85";
    my $file2 = "ngene_17.fw";
    my $hash2 = "26b687136e127b8ac24b81e0eeafc20b";
    my $url2 = "http://l4m-daten.de/downloads/firmware/dvb-s2/linux/all/";
    my $file3 = "ngene_18.fw";
    my $hash3 = "ebce3ea769a53e3e0b0197c3b3f127e3";

    checkstandard();

    wgetfile($file1, $url . $file1);
    verify($file1, $hash1);

    wgetfile($file2, $url . $file2);
    verify($file2, $hash2);

    wgetfile($file3, $url2 . $file3);
    verify($file3, $hash3);

    "$file1, $file2, $file3";
}

sub az6027{
    my $firmware = "dvb-usb-az6027-03.fw";
    my $url = "http://linux.terratec.de/files/TERRATEC_S7/$firmware";

    wgetfile($firmware, $url);

    $firmware;
}

sub lme2510_lg {
    my $sourcefile = "LMEBDA_DVBS.sys";
    my $hash = "fc6017ad01e79890a97ec53bea157ed2";
    my $outfile = "dvb-usb-lme2510-lg.fw";
    my $hasho = "caa065d5fdbd2c09ad57b399bbf55cad";

    checkstandard();

    verify($sourcefile, $hash);
    extract($sourcefile, 4168, 3841, $outfile);
    verify($outfile, $hasho);
    $outfile;
}

sub lme2510c_s7395 {
    my $sourcefile = "US2A0D.sys";
    my $hash = "b0155a8083fb822a3bd47bc360e74601";
    my $outfile = "dvb-usb-lme2510c-s7395.fw";
    my $hasho = "3a3cf1aeebd17b6ddc04cebe131e94cf";

    checkstandard();

    verify($sourcefile, $hash);
    extract($sourcefile, 37248, 3720, $outfile);
    verify($outfile, $hasho);
    $outfile;
}

sub lme2510c_s7395_old {
    my $sourcefile = "LMEBDA_DVBS7395C.sys";
    my $hash = "7572ae0eb9cdf91baabd7c0ba9e09b31";
    my $outfile = "dvb-usb-lme2510c-s7395.fw";
    my $hasho = "90430c5b435eb5c6f88fd44a9d950674";

    checkstandard();

    verify($sourcefile, $hash);
    extract($sourcefile, 4208, 3881, $outfile);
    verify($outfile, $hasho);
    $outfile;
}

sub drxk {
    my $url = "http://l4m-daten.de/files/";
    my $zipfile = "DDTuner.zip";
    my $hash = "f5a37b9a20a3534997997c0b1382a3e5";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
    my $drvfile = "DDTuner.sys";
    my $fwfile = "drxk_a3.mc";

    checkstandard();

    wgetfile($zipfile, $url . $zipfile);
    verify($zipfile, $hash);
    unzip($zipfile, $tmpdir);
    extract("$tmpdir/$drvfile", 0x14dd8, 15634, "$fwfile");

    "$fwfile"
}

sub drxk_hauppauge_hvr930c {
    my $url = "http://www.wintvcd.co.uk/drivers/";
    my $zipfile = "HVR-9x0_5_10_325_28153_SIGNED.zip";
    my $hash = "83ab82e7e9480ec8bf1ae0155ca63c88";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
    my $drvfile = "HVR-900/emOEM.sys";
    my $fwfile = "dvb-usb-hauppauge-hvr930c-drxk.fw";

    checkstandard();

    wgetfile($zipfile, $url . $zipfile);
    verify($zipfile, $hash);
    unzip($zipfile, $tmpdir);
    extract("$tmpdir/$drvfile", 0x117b0, 42692, "$fwfile");

    "$fwfile"
}

sub drxk_terratec_h5 {
    my $url = "https://linuxtv.org/downloads/firmware/";
    my $hash = "19000dada8e2741162ccc50cc91fa7f1";
    my $fwfile = "dvb-usb-terratec-h5-drxk.fw";

    checkstandard();

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

    "$fwfile"
}

sub drxk_terratec_htc_stick {
    my $url = "http://ftp.terratec.de/Receiver/Cinergy_HTC_Stick/Updates/History/";
    my $zipfile = "Cinergy_HTC_Stick_Drv_5.09.1202.00_XP_Vista_7.exe";
    my $hash = "6722a2442a05423b781721fbc069ed5e";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 0);
    my $drvfile = "Cinergy HTC Stick/BDA Driver 5.09.1202.00/Windows 32 Bit/emOEM.sys";
    my $fwfile = "dvb-usb-terratec-htc-stick-drxk.fw";

    checkstandard();

    wgetfile($zipfile, $url . $zipfile);
    verify($zipfile, $hash);
    unzip($zipfile, $tmpdir);
    extract("$tmpdir/$drvfile", 0x4e5c0, 42692, "$fwfile");

    "$fwfile"
}

sub it9135 {
	my $url = "http://www.ite.com.tw/uploads/firmware/v3.25.0.0/";
	my $file1 = "dvb-usb-it9135-01.zip";
	my $fwfile1 = "dvb-usb-it9135-01.fw";
	my $hash1 = "02fcf11174eda84745dae7e61c5ff9ba";
	my $file2 = "dvb-usb-it9135-02.zip";
	my $fwfile2 = "dvb-usb-it9135-02.fw";
	my $hash2 = "d5e1437dc24358578e07999475d4cac9";

	checkstandard();

	wgetfile($file1, $url . $file1);
	unzip($file1, "");
	verify("$fwfile1", $hash1);

	wgetfile($file2, $url . $file2);
	unzip($file2, "");
	verify("$fwfile2", $hash2);

	"$file1 $file2"
}

sub tda10071 {
    my $sourcefile = "PCTV_460e_reference.zip";
    my $url = "ftp://ftp.pctvsystems.com/TV/driver/PCTV%2070e%2080e%20100e%20320e%20330e%20800e/";
    my $hash = "4403de903bf2593464c8d74bbc200a57";
    my $fwfile = "dvb-fe-tda10071.fw";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

    checkstandard();

    wgetfile($sourcefile, $url . $sourcefile);
    verify($sourcefile, $hash);
    unzip($sourcefile, $tmpdir);
    extract("$tmpdir/PCTV\ 70e\ 80e\ 100e\ 320e\ 330e\ 800e/32\ bit/emOEM.sys", 0x67d38, 40504, $fwfile);

    "$fwfile";
}

sub drxk_pctv {
    my $sourcefile = "PCTV_460e_reference.zip";
    my $url = "ftp://ftp.pctvsystems.com/TV/driver/PCTV%2070e%2080e%20100e%20320e%20330e%20800e/";
    my $hash = "4403de903bf2593464c8d74bbc200a57";
    my $fwfile = "dvb-demod-drxk-pctv.fw";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

    checkstandard();

    wgetfile($sourcefile, $url . $sourcefile);
    verify($sourcefile, $hash);
    unzip($sourcefile, $tmpdir);
    extract("$tmpdir/PCTV\ 70e\ 80e\ 100e\ 320e\ 330e\ 800e/32\ bit/emOEM.sys", 0x72b80, 42692, $fwfile);

    "$fwfile";
}

sub sms1xxx_hcw {
    my $url = "http://steventoth.net/linux/sms1xxx/";
    my %files = (
	'sms1xxx-hcw-55xxx-dvbt-01.fw'  => "afb6f9fb9a71d64392e8564ef9577e5a",
	'sms1xxx-hcw-55xxx-dvbt-02.fw'  => "b44807098ba26e52cbedeadc052ba58f",
	'sms1xxx-hcw-55xxx-isdbt-02.fw' => "dae934eeea85225acbd63ce6cfe1c9e4",
    );

    checkstandard();

    my $allfiles;
    foreach my $fwfile (keys %files) {
	wgetfile($fwfile, "$url/$fwfile");
	verify($fwfile, $files{$fwfile});
	$allfiles .= " $fwfile";
    }

    $allfiles =~ s/^\s//;

    $allfiles;
}

sub si2165 {
    my $sourcefile = "model_111xxx_122xxx_driver_6_0_119_31191_WHQL.zip";
    my $url = "http://www.hauppauge.de/files/drivers/";
    my $hash = "76633e7c76b0edee47c3ba18ded99336";
    my $fwfile = "dvb-demod-si2165.fw";
    my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);

    checkstandard();

    wgetfile($sourcefile, $url . $sourcefile);
    verify($sourcefile, $hash);
    unzip($sourcefile, $tmpdir);
    extract("$tmpdir/Driver10/Hcw10bda.sys", 0x80788, 0x81E08-0x80788, "$tmpdir/fw1");

    delzero("$tmpdir/fw1","$tmpdir/fw1-1");
    #verify("$tmpdir/fw1","5e0909858fdf0b5b09ad48b9fe622e70");

    my $CRC="\x0A\xCC";
    my $BLOCKS_MAIN="\x27";
    open FW,">$fwfile";
    print FW "\x01\x00"; # just a version id for the driver itself
    print FW "\x9A"; # fw version
    print FW "\x00"; # padding
    print FW "$BLOCKS_MAIN"; # number of blocks of main part
    print FW "\x00"; # padding
    print FW "$CRC"; # 16bit crc value of main part
    appendfile(FW,"$tmpdir/fw1");

    "$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 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";
    @components = sort @components;
    for($i=0; $i < scalar(@components); $i++) {
	print STDERR "\t" . $components[$i] . "\n";
    }
    exit(1);
}
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