Documentation/dvb/get_dvb_firmware

   1 #!/usr/bin/perl
   2 #     DVB firmware extractor
   3 #
   4 #     (c) 2004 Andrew de Quincey
   5 #
   6 #     This program is free software; you can redistribute it and/or modify
   7 #       it under the terms of the GNU General Public License as published by
   8 #       the Free Software Foundation; either version 2 of the License, or
   9 #       (at your option) any later version.
  10 #
  11 #     This program is distributed in the hope that it will be useful,
  12 #       but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 #
  15 #     GNU General Public License for more details.
  16 #
  17 #     You should have received a copy of the GNU General Public License
  18 #       along with this program; if not, write to the Free Software
  19 #       Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 use File::Temp qw/ tempdir /;
  22 use IO::Handle;
  23
  24 @components = ( "sp8870", "sp887x", "tda10045", "tda10046",
  25                 "tda10046lifeview", "av7110", "dec2000t", "dec2540t",
  26                 "dec3000s", "vp7041", "dibusb", "nxt2002", "nxt2004",
  27                 "or51211", "or51132_qam", "or51132_vsb", "bluebird",
  28                 "opera1", "cx231xx", "cx18", "cx23885", "pvrusb2", "mpc718",
  29                 "af9015");
  30
  31 # Check args
  32 syntax() if (scalar(@ARGV) != 1);
  33 $cid = $ARGV[0];
  34
  35 # Do it!
  36 for ($i=0; $i < scalar(@components); $i++) {
  37     if ($cid eq $components[$i]) {
  38         $outfile = eval($cid);
  39         die $@ if $@;
  40         print STDERR <<EOF;
  41 Firmware(s) $outfile extracted successfully.
  42 Now copy it(they) to either /usr/lib/hotplug/firmware or /lib/firmware
  43 (depending on configuration of firmware hotplug).
  44 EOF
  45         exit(0);
  46     }
  47 }
  48
  49 # If we get here, it wasn't found
  50 print STDERR "Unknown component \"$cid\"\n";
  51 syntax();
  52
  53
  54
  55
  56 # ---------------------------------------------------------------
  57 # Firmware-specific extraction subroutines
  58
  59 sub sp8870 {
  60     my $sourcefile = "tt_Premium_217g.zip";
  61     my $url = "http://www.softwarepatch.pl/9999ccd06a4813cb827dbb0005071c71/$sourcefile";
  62     my $hash = "53970ec17a538945a6d8cb608a7b3899";
  63     my $outfile = "dvb-fe-sp8870.fw";
  64     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
  65
  66     checkstandard();
  67
  68     wgetfile($sourcefile, $url);
  69     unzip($sourcefile, $tmpdir);
  70     verify("$tmpdir/software/OEM/HE/App/boot/SC_MAIN.MC", $hash);
  71     copy("$tmpdir/software/OEM/HE/App/boot/SC_MAIN.MC", $outfile);
  72
  73     $outfile;
  74 }
  75
  76 sub sp887x {
  77     my $sourcefile = "Dvbt1.3.57.6.zip";
  78     my $url = "http://www.avermedia.com/software/$sourcefile";
  79     my $cabfile = "DVBT Net  Ver1.3.57.6/disk1/data1.cab";
  80     my $hash = "237938d53a7f834c05c42b894ca68ac3";
  81     my $outfile = "dvb-fe-sp887x.fw";
  82     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
  83
  84     checkstandard();
  85     checkunshield();
  86
  87     wgetfile($sourcefile, $url);
  88     unzip($sourcefile, $tmpdir);
  89     unshield("$tmpdir/$cabfile", $tmpdir);
  90     verify("$tmpdir/ZEnglish/sc_main.mc", $hash);
  91     copy("$tmpdir/ZEnglish/sc_main.mc", $outfile);
  92
  93     $outfile;
  94 }
  95
  96 sub tda10045 {
  97     my $sourcefile = "tt_budget_217g.zip";
  98     my $url = "http://www.technotrend.de/new/217g/$sourcefile";
  99     my $hash = "2105fd5bf37842fbcdfa4bfd58f3594a";
 100     my $outfile = "dvb-fe-tda10045.fw";
 101     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 102
 103     checkstandard();
 104
 105     wgetfile($sourcefile, $url);
 106     unzip($sourcefile, $tmpdir);
 107     extract("$tmpdir/software/OEM/PCI/App/ttlcdacc.dll", 0x37ef9, 30555, "$tmpdir/fwtmp");
 108     verify("$tmpdir/fwtmp", $hash);
 109     copy("$tmpdir/fwtmp", $outfile);
 110
 111     $outfile;
 112 }
 113
 114 sub tda10046 {
 115         my $sourcefile = "TT_PCI_2.19h_28_11_2006.zip";
 116         my $url = "http://www.tt-download.com/download/updates/219/$sourcefile";
 117         my $hash = "6a7e1e2f2644b162ff0502367553c72d";
 118         my $outfile = "dvb-fe-tda10046.fw";
 119         my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 120
 121         checkstandard();
 122
 123         wgetfile($sourcefile, $url);
 124         unzip($sourcefile, $tmpdir);
 125         extract("$tmpdir/TT_PCI_2.19h_28_11_2006/software/OEM/PCI/App/ttlcdacc.dll", 0x65389, 24478, "$tmpdir/fwtmp");
 126         verify("$tmpdir/fwtmp", $hash);
 127         copy("$tmpdir/fwtmp", $outfile);
 128
 129         $outfile;
 130 }
 131
 132 sub tda10046lifeview {
 133     my $sourcefile = "7%5Cdrv_2.11.02.zip";
 134     my $url = "http://www.lifeview.hk/dbimages/document/$sourcefile";
 135     my $hash = "1ea24dee4eea8fe971686981f34fd2e0";
 136     my $outfile = "dvb-fe-tda10046.fw";
 137     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 138
 139     checkstandard();
 140
 141     wgetfile($sourcefile, $url);
 142     unzip($sourcefile, $tmpdir);
 143     extract("$tmpdir/LVHybrid.sys", 0x8b088, 24602, "$tmpdir/fwtmp");
 144     verify("$tmpdir/fwtmp", $hash);
 145     copy("$tmpdir/fwtmp", $outfile);
 146
 147     $outfile;
 148 }
 149
 150 sub av7110 {
 151     my $sourcefile = "dvb-ttpci-01.fw-261d";
 152     my $url = "http://www.linuxtv.org/downloads/firmware/$sourcefile";
 153     my $hash = "603431b6259715a8e88f376a53b64e2f";
 154     my $outfile = "dvb-ttpci-01.fw";
 155
 156     checkstandard();
 157
 158     wgetfile($sourcefile, $url);
 159     verify($sourcefile, $hash);
 160     copy($sourcefile, $outfile);
 161
 162     $outfile;
 163 }
 164
 165 sub dec2000t {
 166     my $sourcefile = "dec217g.exe";
 167     my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
 168     my $hash = "bd86f458cee4a8f0a8ce2d20c66215a9";
 169     my $outfile = "dvb-ttusb-dec-2000t.fw";
 170     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 171
 172     checkstandard();
 173
 174     wgetfile($sourcefile, $url);
 175     unzip($sourcefile, $tmpdir);
 176     verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_T.bin", $hash);
 177     copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_T.bin", $outfile);
 178
 179     $outfile;
 180 }
 181
 182 sub dec2540t {
 183     my $sourcefile = "dec217g.exe";
 184     my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
 185     my $hash = "53e58f4f5b5c2930beee74a7681fed92";
 186     my $outfile = "dvb-ttusb-dec-2540t.fw";
 187     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 188
 189     checkstandard();
 190
 191     wgetfile($sourcefile, $url);
 192     unzip($sourcefile, $tmpdir);
 193     verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_X.bin", $hash);
 194     copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_X.bin", $outfile);
 195
 196     $outfile;
 197 }
 198
 199 sub dec3000s {
 200     my $sourcefile = "dec217g.exe";
 201     my $url = "http://hauppauge.lightpath.net/de/$sourcefile";
 202     my $hash = "b013ececea83f4d6d8d2a29ac7c1b448";
 203     my $outfile = "dvb-ttusb-dec-3000s.fw";
 204     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 205
 206     checkstandard();
 207
 208     wgetfile($sourcefile, $url);
 209     unzip($sourcefile, $tmpdir);
 210     verify("$tmpdir/software/OEM/STB/App/Boot/STB_PC_S.bin", $hash);
 211     copy("$tmpdir/software/OEM/STB/App/Boot/STB_PC_S.bin", $outfile);
 212
 213     $outfile;
 214 }
 215 sub opera1{
 216         my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 0);
 217
 218         checkstandard();
 219         my $fwfile1="dvb-usb-opera1-fpga-01.fw";
 220         my $fwfile2="dvb-usb-opera-01.fw";
 221         extract("2830SCap2.sys", 0x62e8, 55024, "$tmpdir/opera1-fpga.fw");
 222         extract("2830SLoad2.sys",0x3178,0x3685-0x3178,"$tmpdir/fw1part1");
 223         extract("2830SLoad2.sys",0x0980,0x3150-0x0980,"$tmpdir/fw1part2");
 224         delzero("$tmpdir/fw1part1","$tmpdir/fw1part1-1");
 225         delzero("$tmpdir/fw1part2","$tmpdir/fw1part2-1");
 226         verify("$tmpdir/fw1part1-1","5e0909858fdf0b5b09ad48b9fe622e70");
 227         verify("$tmpdir/fw1part2-1","d6e146f321427e931df2c6fcadac37a1");
 228         verify("$tmpdir/opera1-fpga.fw","0f8133f5e9051f5f3c1928f7e5a1b07d");
 229
 230         my $RES1="\x01\x92\x7f\x00\x01\x00";
 231         my $RES0="\x01\x92\x7f\x00\x00\x00";
 232         my $DAT1="\x01\x00\xe6\x00\x01\x00";
 233         my $DAT0="\x01\x00\xe6\x00\x00\x00";
 234         open FW,">$tmpdir/opera.fw";
 235         print FW "$RES1";
 236         print FW "$DAT1";
 237         print FW "$RES1";
 238         print FW "$DAT1";
 239         appendfile(FW,"$tmpdir/fw1part1-1");
 240         print FW "$RES0";
 241         print FW "$DAT0";
 242         print FW "$RES1";
 243         print FW "$DAT1";
 244         appendfile(FW,"$tmpdir/fw1part2-1");
 245         print FW "$RES1";
 246         print FW "$DAT1";
 247         print FW "$RES0";
 248         print FW "$DAT0";
 249         copy ("$tmpdir/opera1-fpga.fw",$fwfile1);
 250         copy ("$tmpdir/opera.fw",$fwfile2);
 251
 252         $fwfile1.",".$fwfile2;
 253 }
 254
 255 sub vp7041 {
 256     my $sourcefile = "2.422.zip";
 257     my $url = "http://www.twinhan.com/files/driver/USB-Ter/$sourcefile";
 258     my $hash = "e88c9372d1f66609a3e7b072c53fbcfe";
 259     my $outfile = "dvb-vp7041-2.422.fw";
 260     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 261
 262     checkstandard();
 263
 264     wgetfile($sourcefile, $url);
 265     unzip($sourcefile, $tmpdir);
 266     extract("$tmpdir/VisionDTV/Drivers/Win2K&XP/UDTTload.sys", 12503, 3036, "$tmpdir/fwtmp1");
 267     extract("$tmpdir/VisionDTV/Drivers/Win2K&XP/UDTTload.sys", 2207, 10274, "$tmpdir/fwtmp2");
 268
 269     my $CMD = "\000\001\000\222\177\000";
 270     my $PAD = "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000";
 271     my ($FW);
 272     open $FW, ">$tmpdir/fwtmp3";
 273     print $FW "$CMD\001$PAD";
 274     print $FW "$CMD\001$PAD";
 275     appendfile($FW, "$tmpdir/fwtmp1");
 276     print $FW "$CMD\000$PAD";
 277     print $FW "$CMD\001$PAD";
 278     appendfile($FW, "$tmpdir/fwtmp2");
 279     print $FW "$CMD\001$PAD";
 280     print $FW "$CMD\000$PAD";
 281     close($FW);
 282
 283     verify("$tmpdir/fwtmp3", $hash);
 284     copy("$tmpdir/fwtmp3", $outfile);
 285
 286     $outfile;
 287 }
 288
 289 sub dibusb {
 290         my $url = "http://www.linuxtv.org/downloads/firmware/dvb-usb-dibusb-5.0.0.11.fw";
 291         my $outfile = "dvb-dibusb-5.0.0.11.fw";
 292         my $hash = "fa490295a527360ca16dcdf3224ca243";
 293
 294         checkstandard();
 295
 296         wgetfile($outfile, $url);
 297         verify($outfile,$hash);
 298
 299         $outfile;
 300 }
 301
 302 sub nxt2002 {
 303     my $sourcefile = "Technisat_DVB-PC_4_4_COMPACT.zip";
 304     my $url = "http://www.bbti.us/download/windows/$sourcefile";
 305     my $hash = "476befae8c7c1bb9648954060b1eec1f";
 306     my $outfile = "dvb-fe-nxt2002.fw";
 307     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 308
 309     checkstandard();
 310
 311     wgetfile($sourcefile, $url);
 312     unzip($sourcefile, $tmpdir);
 313     verify("$tmpdir/SkyNET.sys", $hash);
 314     extract("$tmpdir/SkyNET.sys", 331624, 5908, $outfile);
 315
 316     $outfile;
 317 }
 318
 319 sub nxt2004 {
 320     my $sourcefile = "AVerTVHD_MCE_A180_Drv_v1.2.2.16.zip";
 321     my $url = "http://www.avermedia-usa.com/support/Drivers/$sourcefile";
 322     my $hash = "111cb885b1e009188346d72acfed024c";
 323     my $outfile = "dvb-fe-nxt2004.fw";
 324     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 325
 326     checkstandard();
 327
 328     wgetfile($sourcefile, $url);
 329     unzip($sourcefile, $tmpdir);
 330     verify("$tmpdir/3xHybrid.sys", $hash);
 331     extract("$tmpdir/3xHybrid.sys", 465304, 9584, $outfile);
 332
 333     $outfile;
 334 }
 335
 336 sub or51211 {
 337     my $fwfile = "dvb-fe-or51211.fw";
 338     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
 339     my $hash = "d830949c771a289505bf9eafc225d491";
 340
 341     checkstandard();
 342
 343     wgetfile($fwfile, $url);
 344     verify($fwfile, $hash);
 345
 346     $fwfile;
 347 }
 348
 349 sub cx231xx {
 350     my $fwfile = "v4l-cx231xx-avcore-01.fw";
 351     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
 352     my $hash = "7d3bb956dc9df0eafded2b56ba57cc42";
 353
 354     checkstandard();
 355
 356     wgetfile($fwfile, $url);
 357     verify($fwfile, $hash);
 358
 359     $fwfile;
 360 }
 361
 362 sub cx18 {
 363     my $url = "http://linuxtv.org/downloads/firmware/";
 364
 365     my %files = (
 366         'v4l-cx23418-apu.fw' => '588f081b562f5c653a3db1ad8f65939a',
 367         'v4l-cx23418-cpu.fw' => 'b6c7ed64bc44b1a6e0840adaeac39d79',
 368         'v4l-cx23418-dig.fw' => '95bc688d3e7599fd5800161e9971cc55',
 369     );
 370
 371     checkstandard();
 372
 373     my $allfiles;
 374     foreach my $fwfile (keys %files) {
 375         wgetfile($fwfile, "$url/$fwfile");
 376         verify($fwfile, $files{$fwfile});
 377         $allfiles .= " $fwfile";
 378     }
 379
 380     $allfiles =~ s/^\s//;
 381
 382     $allfiles;
 383 }
 384
 385 sub mpc718 {
 386     my $archive = 'Yuan MPC718 TV Tuner Card 2.13.10.1016.zip';
 387     my $url = "ftp://ftp.work.acer-euro.com/desktop/aspire_idea510/vista/Drivers/$archive";
 388     my $fwfile = "dvb-cx18-mpc718-mt352.fw";
 389     my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 390
 391     checkstandard();
 392     wgetfile($archive, $url);
 393     unzip($archive, $tmpdir);
 394
 395     my $sourcefile = "$tmpdir/Yuan MPC718 TV Tuner Card 2.13.10.1016/mpc718_32bit/yuanrap.sys";
 396     my $found = 0;
 397
 398     open IN, '<', $sourcefile or die "Couldn't open $sourcefile to extract $fwfile data\n";
 399     binmode IN;
 400     open OUT, '>', $fwfile;
 401     binmode OUT;
 402     {
 403         # Block scope because we change the line terminator variable $/
 404         my $prevlen = 0;
 405         my $currlen;
 406
 407         # Buried in the data segment are 3 runs of almost identical
 408         # register-value pairs that end in 0x5d 0x01 which is a "TUNER GO"
 409         # command for the MT352.
 410         # Pull out the middle run (because it's easy) of register-value
 411         # pairs to make the "firmware" file.
 412
 413         local $/ = "\x5d\x01"; # MT352 "TUNER GO"
 414
 415         while (<IN>) {
 416             $currlen = length($_);
 417             if ($prevlen == $currlen && $currlen <= 64) {
 418                 chop; chop; # Get rid of "TUNER GO"
 419                 s/^\0\0//;  # get rid of leading 00 00 if it's there
 420                 printf OUT "$_";
 421                 $found = 1;
 422                 last;
 423             }
 424             $prevlen = $currlen;
 425         }
 426     }
 427     close OUT;
 428     close IN;
 429     if (!$found) {
 430         unlink $fwfile;
 431         die "Couldn't find valid register-value sequence in $sourcefile for $fwfile\n";
 432     }
 433     $fwfile;
 434 }
 435
 436 sub cx23885 {
 437     my $url = "http://linuxtv.org/downloads/firmware/";
 438
 439     my %files = (
 440         'v4l-cx23885-avcore-01.fw' => 'a9f8f5d901a7fb42f552e1ee6384f3bb',
 441         'v4l-cx23885-enc.fw'       => 'a9f8f5d901a7fb42f552e1ee6384f3bb',
 442     );
 443
 444     checkstandard();
 445
 446     my $allfiles;
 447     foreach my $fwfile (keys %files) {
 448         wgetfile($fwfile, "$url/$fwfile");
 449         verify($fwfile, $files{$fwfile});
 450         $allfiles .= " $fwfile";
 451     }
 452
 453     $allfiles =~ s/^\s//;
 454
 455     $allfiles;
 456 }
 457
 458 sub pvrusb2 {
 459     my $url = "http://linuxtv.org/downloads/firmware/";
 460
 461     my %files = (
 462         'v4l-cx25840.fw'           => 'dadb79e9904fc8af96e8111d9cb59320',
 463     );
 464
 465     checkstandard();
 466
 467     my $allfiles;
 468     foreach my $fwfile (keys %files) {
 469         wgetfile($fwfile, "$url/$fwfile");
 470         verify($fwfile, $files{$fwfile});
 471         $allfiles .= " $fwfile";
 472     }
 473
 474     $allfiles =~ s/^\s//;
 475
 476     $allfiles;
 477 }
 478
 479 sub or51132_qam {
 480     my $fwfile = "dvb-fe-or51132-qam.fw";
 481     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
 482     my $hash = "7702e8938612de46ccadfe9b413cb3b5";
 483
 484     checkstandard();
 485
 486     wgetfile($fwfile, $url);
 487     verify($fwfile, $hash);
 488
 489     $fwfile;
 490 }
 491
 492 sub or51132_vsb {
 493     my $fwfile = "dvb-fe-or51132-vsb.fw";
 494     my $url = "http://linuxtv.org/downloads/firmware/$fwfile";
 495     my $hash = "c16208e02f36fc439a557ad4c613364a";
 496
 497     checkstandard();
 498
 499     wgetfile($fwfile, $url);
 500     verify($fwfile, $hash);
 501
 502     $fwfile;
 503 }
 504
 505 sub bluebird {
 506         my $url = "http://www.linuxtv.org/download/dvb/firmware/dvb-usb-bluebird-01.fw";
 507         my $outfile = "dvb-usb-bluebird-01.fw";
 508         my $hash = "658397cb9eba9101af9031302671f49d";
 509
 510         checkstandard();
 511
 512         wgetfile($outfile, $url);
 513         verify($outfile,$hash);
 514
 515         $outfile;
 516 }
 517
 518 sub af9015 {
 519         my $sourcefile = "download.ashx?file=57";
 520         my $url = "http://www.ite.com.tw/EN/Services/$sourcefile";
 521         my $hash = "ff5b096ed47c080870eacdab2de33ad6";
 522         my $outfile = "dvb-usb-af9015.fw";
 523         my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1);
 524         my $fwoffset = 0x22708;
 525         my $fwlength = 18225;
 526         my ($chunklength, $buf, $rcount);
 527
 528         checkstandard();
 529
 530         wgetfile($sourcefile, $url);
 531         unzip($sourcefile, $tmpdir);
 532         verify("$tmpdir/Driver/Files/AF15BDA.sys", $hash);
 533
 534         open INFILE, '<', "$tmpdir/Driver/Files/AF15BDA.sys";
 535         open OUTFILE, '>', $outfile;
 536
 537         sysseek(INFILE, $fwoffset, SEEK_SET);
 538         while($fwlength > 0) {
 539                 $chunklength = 55;
 540                 $chunklength = $fwlength if ($chunklength > $fwlength);
 541                 $rcount = sysread(INFILE, $buf, $chunklength);
 542                 die "Ran out of data\n" if ($rcount != $chunklength);
 543                 syswrite(OUTFILE, $buf);
 544                 sysread(INFILE, $buf, 8);
 545                 $fwlength -= $rcount + 8;
 546         }
 547
 548         close OUTFILE;
 549         close INFILE;
 550 }
 551
 552 # ---------------------------------------------------------------
 553 # Utilities
 554
 555 sub checkstandard {
 556     if (system("which unzip > /dev/null 2>&1")) {
 557         die "This firmware requires the unzip command - see ftp://ftp.info-zip.org/pub/infozip/UnZip.html\n";
 558     }
 559     if (system("which md5sum > /dev/null 2>&1")) {
 560         die "This firmware requires the md5sum command - see http://www.gnu.org/software/coreutils/\n";
 561     }
 562     if (system("which wget > /dev/null 2>&1")) {
 563         die "This firmware requires the wget command - see http://wget.sunsite.dk/\n";
 564     }
 565 }
 566
 567 sub checkunshield {
 568     if (system("which unshield > /dev/null 2>&1")) {
 569         die "This firmware requires the unshield command - see http://sourceforge.net/projects/synce/\n";
 570     }
 571 }
 572
 573 sub wgetfile {
 574     my ($sourcefile, $url) = @_;
 575
 576     if (! -f $sourcefile) {
 577         system("wget -O \"$sourcefile\" \"$url\"") and die "wget failed - unable to download firmware";
 578     }
 579 }
 580
 581 sub unzip {
 582     my ($sourcefile, $todir) = @_;
 583
 584     $status = system("unzip -q -o -d \"$todir\" \"$sourcefile\" 2>/dev/null" );
 585     if ((($status >> 8) > 2) || (($status & 0xff) != 0)) {
 586         die ("unzip failed - unable to extract firmware");
 587     }
 588 }
 589
 590 sub unshield {
 591     my ($sourcefile, $todir) = @_;
 592
 593     system("unshield x -d \"$todir\" \"$sourcefile\" > /dev/null" ) and die ("unshield failed - unable to extract firmware");
 594 }
 595
 596 sub verify {
 597     my ($filename, $hash) = @_;
 598     my ($testhash);
 599
 600     open(CMD, "md5sum \"$filename\"|");
 601     $testhash = <CMD>;
 602     $testhash =~ /([a-zA-Z0-9]*)/;
 603     $testhash = $1;
 604     close CMD;
 605     die "Hash of extracted file does not match!\n" if ($testhash ne $hash);
 606 }
 607
 608 sub copy {
 609     my ($from, $to) = @_;
 610
 611     system("cp -f \"$from\" \"$to\"") and die ("cp failed");
 612 }
 613
 614 sub extract {
 615     my ($infile, $offset, $length, $outfile) = @_;
 616     my ($chunklength, $buf, $rcount);
 617
 618     open INFILE, "<$infile";
 619     open OUTFILE, ">$outfile";
 620     sysseek(INFILE, $offset, SEEK_SET);
 621     while($length > 0) {
 622         # Calc chunk size
 623         $chunklength = 2048;
 624         $chunklength = $length if ($chunklength > $length);
 625
 626         $rcount = sysread(INFILE, $buf, $chunklength);
 627         die "Ran out of data\n" if ($rcount != $chunklength);
 628         syswrite(OUTFILE, $buf);
 629         $length -= $rcount;
 630     }
 631     close INFILE;
 632     close OUTFILE;
 633 }
 634
 635 sub appendfile {
 636     my ($FH, $infile) = @_;
 637     my ($buf);
 638
 639     open INFILE, "<$infile";
 640     while(1) {
 641         $rcount = sysread(INFILE, $buf, 2048);
 642         last if ($rcount == 0);
 643         print $FH $buf;
 644     }
 645     close(INFILE);
 646 }
 647
 648 sub delzero{
 649         my ($infile,$outfile) =@_;
 650
 651         open INFILE,"<$infile";
 652         open OUTFILE,">$outfile";
 653         while (1){
 654                 $rcount=sysread(INFILE,$buf,22);
 655                 $len=ord(substr($buf,0,1));
 656                 print OUTFILE substr($buf,0,1);
 657                 print OUTFILE substr($buf,2,$len+3);
 658         last if ($rcount<1);
 659         printf OUTFILE "%c",0;
 660 #print $len." ".length($buf)."\n";
 661
 662         }
 663         close(INFILE);
 664         close(OUTFILE);
 665 }
 666
 667 sub syntax() {
 668     print STDERR "syntax: get_dvb_firmware <component>\n";
 669     print STDERR "Supported components:\n";
 670     for($i=0; $i < scalar(@components); $i++) {
 671         print STDERR "\t" . $components[$i] . "\n";
 672     }
 673     exit(1);
 674 }