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dpavlin |
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#!/usr/bin/perl |
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use Device::SerialPort qw (:STAT); |
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use strict; |
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use warnings; |
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use Data::Dump qw/dump/; |
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dpavlin |
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use Carp qw/confess/; |
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dpavlin |
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use Getopt::Long; |
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dpavlin |
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use File::Slurp; |
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dpavlin |
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dpavlin |
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use IO::Socket::INET; |
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dpavlin |
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my $meteor_server = '192.168.1.13:4671'; |
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dpavlin |
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my $meteor_fh; |
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dpavlin |
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sub meteor { |
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dpavlin |
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my @a = @_; |
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push @a, scalar localtime() if $a[0] =~ m{^info}; |
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dpavlin |
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if ( ! defined $meteor_fh ) { |
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dpavlin |
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if ( $meteor_fh = |
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IO::Socket::INET->new( |
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PeerAddr => $meteor_server, |
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Timeout => 1, |
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) |
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) { |
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warn "# meteor connected to $meteor_server"; |
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} else { |
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warn "can't connect to meteor $meteor_server: $!"; |
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$meteor_fh = 0; |
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} |
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dpavlin |
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} |
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dpavlin |
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if ( $meteor_fh ) { |
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warn ">> meteor ",dump( @a ); |
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print $meteor_fh "ADDMESSAGE test ",join('|',@a),"\n" |
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} |
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dpavlin |
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} |
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dpavlin |
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my $debug = 0; |
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dpavlin |
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my $device = "/dev/ttyUSB0"; |
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my $baudrate = "19200"; |
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my $databits = "8"; |
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my $parity = "none"; |
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my $stopbits = "1"; |
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my $handshake = "none"; |
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dpavlin |
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my $program_path = './program/'; |
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dpavlin |
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my $secure_path = './secure/'; |
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dpavlin |
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dpavlin |
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my $response = { |
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'd500090400110a0500027250' => 'version?', |
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'd60007fe00000500c97b' => 'no tag in range', |
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'd6000ffe00000501e00401003123aa26941a' => 'tag #1', |
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'd6000ffe00000501e0040100017c0c388e2b' => 'rfid card', |
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'd6000ffe00000501e00401003123aa2875d4' => 'tag red-stripe', |
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'd60017fe00000502e00401003123aa26e0040100017c0c38cadb' => 'tag #1 + card', |
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'd60017fe00000502e00401003123aa26e00401003123aa283124' => 'tag #1 + tag red-stripe', |
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}; |
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dpavlin |
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GetOptions( |
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dpavlin |
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'd|debug+' => \$debug, |
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dpavlin |
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'device=s' => \$device, |
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'baudrate=i' => \$baudrate, |
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'databits=i' => \$databits, |
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'parity=s' => \$parity, |
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'stopbits=i' => \$stopbits, |
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'handshake=s' => \$handshake, |
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dpavlin |
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'meteor=s' => \$meteor_server, |
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dpavlin |
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) or die $!; |
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dpavlin |
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my $verbose = $debug > 0 ? $debug-- : 0; |
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dpavlin |
1 |
=head1 NAME |
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3m-810 - support for 3M 810 RFID reader |
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=head1 SYNOPSIS |
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dpavlin |
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3m-810.pl --device /dev/ttyUSB0 |
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dpavlin |
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=head1 DESCRIPTION |
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Communicate with 3M 810 RFID reader and document it's protocol |
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=head1 SEE ALSO |
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L<Device::SerialPort(3)> |
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L<perl(1)> |
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dpavlin |
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L<http://stackoverflow.com/questions/149617/how-could-i-guess-a-checksum-algorithm> |
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dpavlin |
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=head1 AUTHOR |
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Dobrica Pavlinusic <dpavlin@rot13.org> L<http://www.rot13.org/~dpavlin/> |
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=head1 COPYRIGHT AND LICENSE |
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This program is free software; you may redistribute it and/or modify |
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it under the same terms ans Perl itself. |
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=cut |
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dpavlin |
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my $tags_data; |
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my $visible_tags; |
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dpavlin |
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my $item_type = { |
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1 => 'Book', |
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6 => 'CD/CD ROM', |
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2 => 'Magazine', |
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13 => 'Book with Audio Tape', |
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9 => 'Book with CD/CD ROM', |
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0 => 'Other', |
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5 => 'Video', |
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4 => 'Audio Tape', |
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3 => 'Bound Journal', |
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8 => 'Book with Diskette', |
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7 => 'Diskette', |
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}; |
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warn "## known item type: ",dump( $item_type ) if $debug; |
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dpavlin |
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my $port=new Device::SerialPort($device) || die "can't open serial port $device: $!\n"; |
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warn "using $device $handshake $baudrate $databits $parity $stopbits" if $debug; |
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dpavlin |
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$handshake=$port->handshake($handshake); |
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$baudrate=$port->baudrate($baudrate); |
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$databits=$port->databits($databits); |
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$parity=$port->parity($parity); |
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$stopbits=$port->stopbits($stopbits); |
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dpavlin |
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print "## using $device $baudrate $databits $parity $stopbits debug: $debug verbose: $verbose\n"; |
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dpavlin |
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# Just in case: reset our timing and buffers |
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$port->lookclear(); |
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$port->read_const_time(100); |
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$port->read_char_time(5); |
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# Turn on parity checking: |
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#$port->stty_inpck(1); |
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#$port->stty_istrip(1); |
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dpavlin |
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# initial hand-shake with device |
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dpavlin |
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cmd( 'D5 00 05 04 00 11 8C66', 'hw version', |
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'D5 00 09 04 00 11 0A 05 00 02 7250', sub { |
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dpavlin |
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my $hw_ver = join('.', unpack('CCCC', skip_assert(3) )); |
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print "hardware version $hw_ver\n"; |
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dpavlin |
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meteor( 'info', "Found reader hardware $hw_ver" ); |
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dpavlin |
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}); |
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dpavlin |
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dpavlin |
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cmd( 'D6 00 0C 13 04 01 00 02 00 03 00 04 00 AAF2','FIXME: stats?', |
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'D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778', sub { assert() } ); |
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dpavlin |
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dpavlin |
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# start scanning for tags |
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dpavlin |
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dpavlin |
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cmd( 'D6 00 05 FE 00 05 FA40', "scan for tags, retry $_", |
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'D6 00 0F FE 00 00 05 ', sub { # 01 E00401003123AA26 941A # seen, serial length: 8 |
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my $rest = shift || die "no rest?"; |
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my $nr = ord( substr( $rest, 0, 1 ) ); |
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if ( ! $nr ) { |
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print "no tags in range\n"; |
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dpavlin |
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update_visible_tags(); |
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dpavlin |
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meteor( 'info-none-in-range' ); |
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dpavlin |
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$tags_data = {}; |
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dpavlin |
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} else { |
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dpavlin |
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my $tags = substr( $rest, 1 ); |
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dpavlin |
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dpavlin |
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my $tl = length( $tags ); |
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die "wrong length $tl for $nr tags: ",dump( $tags ) if $tl =! $nr * 8; |
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my @tags; |
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dpavlin |
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push @tags, uc(unpack('H16', substr($tags, $_ * 8, 8))) foreach ( 0 .. $nr - 1 ); |
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dpavlin |
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warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug; |
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dpavlin |
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print "$nr tags in range: ", join(',', @tags ) , "\n"; |
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dpavlin |
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dpavlin |
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meteor( 'info-in-range', join(' ',@tags)); |
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dpavlin |
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update_visible_tags( @tags ); |
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dpavlin |
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} |
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dpavlin |
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} |
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dpavlin |
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) while(1); |
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#) foreach ( 1 .. 100 ); |
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dpavlin |
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dpavlin |
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sub update_visible_tags { |
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my @tags = @_; |
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my $last_visible_tags = $visible_tags; |
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$visible_tags = {}; |
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foreach my $tag ( @tags ) { |
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if ( ! defined $last_visible_tags->{$tag} ) { |
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dpavlin |
25 |
if ( defined $tags_data->{$tag} ) { |
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# meteor( 'in-range', $tag ); |
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} else { |
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meteor( 'read', $tag ); |
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read_tag( $tag ); |
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} |
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dpavlin |
22 |
$visible_tags->{$tag}++; |
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} else { |
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warn "## using cached data for $tag" if $debug; |
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} |
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delete $last_visible_tags->{$tag}; # leave just missing tags |
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dpavlin |
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if ( -e "$program_path/$tag" ) { |
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meteor( 'write', $tag ); |
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write_tag( $tag ); |
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} |
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dpavlin |
34 |
if ( -e "$secure_path/$tag" ) { |
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meteor( 'secure', $tag ); |
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secure_tag( $tag ); |
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} |
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dpavlin |
22 |
} |
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foreach my $tag ( keys %$last_visible_tags ) { |
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dpavlin |
23 |
my $data = delete $tags_data->{$tag}; |
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print "removed tag $tag with data ",dump( $data ),"\n"; |
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dpavlin |
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meteor( 'removed', $tag ); |
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dpavlin |
22 |
} |
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warn "## update_visible_tags(",dump( @tags ),") = ",dump( $visible_tags )," removed: ",dump( $last_visible_tags ), " data: ",dump( $tags_data ) if $debug; |
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} |
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dpavlin |
28 |
my $tag_data_block; |
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dpavlin |
22 |
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dpavlin |
28 |
sub read_tag_data { |
| 236 |
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my ($start_block,$rest) = @_; |
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die "no rest?" unless $rest; |
| 238 |
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warn "## DATA [$start_block] ", dump( $rest ) if $debug; |
| 239 |
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my $tag = uc(unpack('H16',substr( $rest, 0, 8 ))); |
| 240 |
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my $blocks = ord(substr($rest,8,1)); |
| 241 |
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$rest = substr($rest,9); # leave just data blocks |
| 242 |
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foreach my $nr ( 0 .. $blocks - 1 ) { |
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my $block = substr( $rest, $nr * 6, 6 ); |
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warn "## block ",as_hex( $block ) if $debug; |
| 245 |
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my $ord = unpack('v',substr( $block, 0, 2 )); |
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my $expected_ord = $nr + $start_block; |
| 247 |
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die "got block $ord, expected block $expected_ord from ",dump( $block ) if $ord != $expected_ord; |
| 248 |
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my $data = substr( $block, 2 ); |
| 249 |
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die "data payload should be 4 bytes" if length($data) != 4; |
| 250 |
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warn sprintf "## tag %9s %02d %s |%-4s|\n", $tag, $ord, as_hex( $data ), $data; |
| 251 |
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$tag_data_block->{$tag}->[ $ord ] = $data; |
| 252 |
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} |
| 253 |
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$tags_data->{ $tag } = join('', @{ $tag_data_block->{$tag} }); |
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dpavlin |
31 |
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| 255 |
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my $item_type_nr = ord(substr( $tags_data->{$tag}, 3, 1 )); |
| 256 |
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print "DATA $tag ",dump( $tags_data ), " item type: ", ( $item_type->{ $item_type_nr } || "UNKWOWN '$item_type_nr' in " . dump( $item_type ) ), "\n"; |
| 257 |
dpavlin |
28 |
} |
| 258 |
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| 259 |
dpavlin |
16 |
sub read_tag { |
| 260 |
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my ( $tag ) = @_; |
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dpavlin |
1 |
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| 262 |
dpavlin |
22 |
confess "no tag?" unless $tag; |
| 263 |
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| 264 |
dpavlin |
16 |
print "read_tag $tag\n"; |
| 265 |
dpavlin |
1 |
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dpavlin |
20 |
cmd( |
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dpavlin |
28 |
"D6 00 0D 02 $tag 00 03 1CC4", "read $tag offset: 0 blocks: 3", |
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dpavlin |
20 |
"D6 00 0F FE 00 00 05 01 $tag 941A", sub { |
| 269 |
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print "FIXME: tag $tag ready?\n"; |
| 270 |
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}, |
| 271 |
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"D6 00 1F 02 00", sub { # $tag 03 00 00 04 11 00 01 01 00 31 32 33 34 02 00 35 36 37 38 531F\n"; |
| 272 |
dpavlin |
28 |
read_tag_data( 0, @_ ); |
| 273 |
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}, |
| 274 |
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); |
| 275 |
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| 276 |
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cmd( |
| 277 |
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"D6 00 0D 02 $tag 03 04 3970", "read $tag offset: 3 blocks: 4", |
| 278 |
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"D6 00 25 02 00", sub { # $tag 04 03 00 30 30 00 00 04 00 00 00 00 00 |
| 279 |
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read_tag_data( 3, @_ ); |
| 280 |
dpavlin |
20 |
} |
| 281 |
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); |
| 282 |
dpavlin |
1 |
|
| 283 |
dpavlin |
33 |
my $security; |
| 284 |
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| 285 |
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cmd( |
| 286 |
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"D6 00 0B 0A $tag 1234", "check security $tag", |
| 287 |
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"D6 00 0D 0A 00", sub { |
| 288 |
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my $rest = shift; |
| 289 |
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my $from_tag; |
| 290 |
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( $from_tag, $security ) = ( substr($rest,0,8), substr($rest,8,1) ); |
| 291 |
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die "security from other tag: ",as_hex( $from_tag ) if $from_tag ne str2bytes( $tag ); |
| 292 |
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$security = as_hex( $security ); |
| 293 |
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warn "# SECURITY $tag = $security\n"; |
| 294 |
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} |
| 295 |
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); |
| 296 |
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| 297 |
dpavlin |
32 |
my $data = $tags_data->{$tag} || die "no data for $tag"; |
| 298 |
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my ( $u1, $set_item, $u2, $type, $content, $br_lib, $custom ) = unpack('C4Z16Nl>',$data); |
| 299 |
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my $set = ( $set_item & 0xf0 ) >> 4; |
| 300 |
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my $total = ( $set_item & 0x0f ); |
| 301 |
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my $branch = $br_lib >> 20; |
| 302 |
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my $library = $br_lib & 0x000fffff; |
| 303 |
dpavlin |
37 |
print "TAG $tag [$u1] set: $set/$total [$u2] type: $type '$content' library: $library branch: $branch custom: $custom security: $security\n"; |
| 304 |
dpavlin |
32 |
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| 305 |
dpavlin |
16 |
} |
| 306 |
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| 307 |
dpavlin |
29 |
sub write_tag { |
| 308 |
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my ($tag) = @_; |
| 309 |
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| 310 |
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my $path = "$program_path/$tag"; |
| 311 |
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| 312 |
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my $data = read_file( $path ); |
| 313 |
dpavlin |
38 |
my $hex_data; |
| 314 |
dpavlin |
29 |
|
| 315 |
dpavlin |
38 |
if ( $data =~ s{^hex\s+}{} ) { |
| 316 |
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$hex_data = $data; |
| 317 |
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$hex_data =~ s{\s+}{}g; |
| 318 |
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} else { |
| 319 |
dpavlin |
29 |
|
| 320 |
dpavlin |
38 |
# pad to block size |
| 321 |
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$data .= "\0" x ( 4 - ( length($data) % 4 ) ); |
| 322 |
dpavlin |
30 |
|
| 323 |
dpavlin |
38 |
my $max_len = 7 * 4; |
| 324 |
dpavlin |
30 |
|
| 325 |
dpavlin |
38 |
if ( length($data) > $max_len ) { |
| 326 |
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$data = substr($data,0,$max_len); |
| 327 |
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warn "strip content to $max_len bytes\n"; |
| 328 |
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} |
| 329 |
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| 330 |
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$hex_data = unpack('H*', $data); |
| 331 |
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} |
| 332 |
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| 333 |
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my $len = length($hex_data) / 2; |
| 334 |
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my $blocks = sprintf('%02x', $len / 4); |
| 335 |
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| 336 |
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print "write_tag $tag = ",dump( $data ), " [$len/$blocks] == $hex_data\n"; |
| 337 |
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| 338 |
dpavlin |
29 |
cmd( |
| 339 |
dpavlin |
38 |
"d6 00 ff 04 $tag 00 $blocks 00 $hex_data ffff", "write $tag", |
| 340 |
|
|
"d6 00 0d 04 00 $tag $blocks afb1", sub { assert() }, |
| 341 |
dpavlin |
34 |
) foreach ( 1 .. 3 ); # xxx 3m software does this three times! |
| 342 |
dpavlin |
29 |
|
| 343 |
|
|
my $to = $path; |
| 344 |
|
|
$to .= '.' . time(); |
| 345 |
|
|
|
| 346 |
|
|
rename $path, $to; |
| 347 |
|
|
print ">> $to\n"; |
| 348 |
|
|
|
| 349 |
dpavlin |
30 |
delete $tags_data->{$tag}; # force re-read of tag |
| 350 |
dpavlin |
29 |
} |
| 351 |
|
|
|
| 352 |
dpavlin |
34 |
sub secure_tag { |
| 353 |
|
|
my ($tag) = @_; |
| 354 |
|
|
|
| 355 |
|
|
my $path = "$secure_path/$tag"; |
| 356 |
|
|
my $data = substr(read_file( $path ),0,2); |
| 357 |
|
|
|
| 358 |
|
|
cmd( |
| 359 |
|
|
"d6 00 0c 09 $tag $data 1234", "secure $tag -> $data", |
| 360 |
|
|
"d6 00 0c 09 00 $tag 1234", sub { assert() }, |
| 361 |
|
|
); |
| 362 |
|
|
|
| 363 |
|
|
my $to = $path; |
| 364 |
|
|
$to .= '.' . time(); |
| 365 |
|
|
|
| 366 |
|
|
rename $path, $to; |
| 367 |
|
|
print ">> $to\n"; |
| 368 |
|
|
} |
| 369 |
|
|
|
| 370 |
dpavlin |
19 |
exit; |
| 371 |
|
|
|
| 372 |
dpavlin |
1 |
for ( 1 .. 3 ) { |
| 373 |
|
|
|
| 374 |
|
|
# ++-->type 00-0a |
| 375 |
|
|
# D6 00 2A 04 E00401003123AA26 00 07 00 04 11 00 01 31 31 31 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 1C D4 |
| 376 |
|
|
# D6 00 2A 04 E0 04 01 00 31 23 AA 26 00 07 00 04 11 00 06 32 32 32 32 32 32 32 32 32 32 32 00 00 00 00 00 00 00 00 00 00 00 00 00 32B7 |
| 377 |
|
|
# D6 00 2A 04 E0 04 01 00 31 23 AA 26 00 07 00 04 11 00 02 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 00 00 00 00 00 00 00 00 42 1F |
| 378 |
|
|
|
| 379 |
|
|
cmd(' D6 00 2A 04 E00401003123AA26 00 07 00 04 11 00 01 30 30 30 30 30 30 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8843', "write offset 0, block: 7 -- 0000000000 $_" ); |
| 380 |
|
|
warn "D6 00 0D 04 00 E00401003123AA26 07 CFF1 -- ack 7 block?\n"; |
| 381 |
|
|
|
| 382 |
|
|
} |
| 383 |
|
|
warn " D6 00 0F FE 00 00 05 01 E00401003123AA26 941A\n"; |
| 384 |
|
|
|
| 385 |
|
|
cmd( 'D6 00 05 FE 00 05 FA 40', "port-write scan $_" ) foreach ( 1 .. 2 ); |
| 386 |
|
|
|
| 387 |
|
|
cmd('D6 00 0C 09 E00401003123AA26 D7 3AF0', 'checkin?', |
| 388 |
|
|
'D6 00 0C 09 00 E00401003123AA26 6A44 -- no?' ); |
| 389 |
|
|
cmd('D6 00 0C 09 E00401003123AA26 DA EB5D', 'checkout?', |
| 390 |
|
|
'D6 00 0C 09 00 E00401003123AA26 6A44 -- no?' ); |
| 391 |
|
|
|
| 392 |
|
|
cmd('D6 00 26 04 E00401003123AA26 00 06 00 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 55 A98B', 'blank offset: 0 blocks: 6', |
| 393 |
|
|
'D6 00 0D 04 00 E00401003123AA26 06 DFD0 -- ack 6 blocks' ) foreach ( 1 .. 3 ); |
| 394 |
|
|
|
| 395 |
|
|
undef $port; |
| 396 |
|
|
print "Port closed\n"; |
| 397 |
|
|
|
| 398 |
|
|
sub writechunk |
| 399 |
|
|
{ |
| 400 |
|
|
my $str=shift; |
| 401 |
|
|
my $count = $port->write($str); |
| 402 |
dpavlin |
38 |
my $len = length($str); |
| 403 |
|
|
die "wrong write length $count != $len in ",as_hex( $str ) if $count != $len; |
| 404 |
dpavlin |
19 |
print "#> ", as_hex( $str ), "\t[$count]\n" if $debug; |
| 405 |
dpavlin |
1 |
} |
| 406 |
|
|
|
| 407 |
|
|
sub as_hex { |
| 408 |
|
|
my @out; |
| 409 |
|
|
foreach my $str ( @_ ) { |
| 410 |
|
|
my $hex = unpack( 'H*', $str ); |
| 411 |
dpavlin |
2 |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
| 412 |
dpavlin |
8 |
$hex =~ s/\s+$//; |
| 413 |
dpavlin |
1 |
push @out, $hex; |
| 414 |
|
|
} |
| 415 |
dpavlin |
8 |
return join(' | ', @out); |
| 416 |
dpavlin |
1 |
} |
| 417 |
|
|
|
| 418 |
|
|
sub read_bytes { |
| 419 |
|
|
my ( $len, $desc ) = @_; |
| 420 |
|
|
my $data = ''; |
| 421 |
|
|
while ( length( $data ) < $len ) { |
| 422 |
|
|
my ( $c, $b ) = $port->read(1); |
| 423 |
dpavlin |
28 |
die "no bytes on port: $!" unless defined $b; |
| 424 |
dpavlin |
1 |
#warn "## got $c bytes: ", as_hex($b), "\n"; |
| 425 |
|
|
$data .= $b; |
| 426 |
|
|
} |
| 427 |
|
|
$desc ||= '?'; |
| 428 |
dpavlin |
4 |
warn "#< ", as_hex($data), "\t$desc\n" if $debug; |
| 429 |
dpavlin |
1 |
return $data; |
| 430 |
|
|
} |
| 431 |
|
|
|
| 432 |
dpavlin |
5 |
our $assert; |
| 433 |
dpavlin |
2 |
|
| 434 |
dpavlin |
5 |
# my $rest = skip_assert( 3 ); |
| 435 |
|
|
sub skip_assert { |
| 436 |
|
|
assert( 0, shift ); |
| 437 |
|
|
} |
| 438 |
|
|
|
| 439 |
dpavlin |
2 |
sub assert { |
| 440 |
|
|
my ( $from, $to ) = @_; |
| 441 |
|
|
|
| 442 |
dpavlin |
39 |
return unless $assert->{expect}; |
| 443 |
|
|
|
| 444 |
dpavlin |
5 |
$from ||= 0; |
| 445 |
dpavlin |
4 |
$to = length( $assert->{expect} ) if ! defined $to; |
| 446 |
|
|
|
| 447 |
dpavlin |
2 |
my $p = substr( $assert->{payload}, $from, $to ); |
| 448 |
|
|
my $e = substr( $assert->{expect}, $from, $to ); |
| 449 |
dpavlin |
3 |
warn "EXPECTED ",as_hex($e), " GOT ", as_hex($p), " [$from-$to] in ",dump( $assert ), "\n" if $e ne $p; |
| 450 |
dpavlin |
5 |
|
| 451 |
|
|
# return the rest |
| 452 |
|
|
return substr( $assert->{payload}, $to ); |
| 453 |
dpavlin |
2 |
} |
| 454 |
|
|
|
| 455 |
dpavlin |
15 |
use Digest::CRC; |
| 456 |
|
|
|
| 457 |
|
|
sub crcccitt { |
| 458 |
|
|
my $bytes = shift; |
| 459 |
|
|
my $crc = Digest::CRC->new( |
| 460 |
|
|
# midified CCITT to xor with 0xffff instead of 0x0000 |
| 461 |
|
|
width => 16, init => 0xffff, xorout => 0xffff, refout => 0, poly => 0x1021, refin => 0, |
| 462 |
|
|
) or die $!; |
| 463 |
|
|
$crc->add( $bytes ); |
| 464 |
|
|
pack('n', $crc->digest); |
| 465 |
|
|
} |
| 466 |
|
|
|
| 467 |
dpavlin |
8 |
# my $checksum = checksum( $bytes ); |
| 468 |
|
|
# my $checksum = checksum( $bytes, $original_checksum ); |
| 469 |
|
|
sub checksum { |
| 470 |
|
|
my ( $bytes, $checksum ) = @_; |
| 471 |
|
|
|
| 472 |
dpavlin |
16 |
my $len = ord(substr($bytes,2,1)); |
| 473 |
dpavlin |
17 |
my $len_real = length($bytes) - 1; |
| 474 |
dpavlin |
16 |
|
| 475 |
dpavlin |
17 |
if ( $len_real != $len ) { |
| 476 |
|
|
print "length wrong: $len_real != $len\n"; |
| 477 |
dpavlin |
38 |
$bytes = substr($bytes,0,2) . chr($len_real) . substr($bytes,3); |
| 478 |
dpavlin |
17 |
} |
| 479 |
|
|
|
| 480 |
dpavlin |
38 |
my $xor = crcccitt( substr($bytes,1) ); # skip D6 |
| 481 |
|
|
warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug; |
| 482 |
|
|
|
| 483 |
dpavlin |
8 |
if ( defined $checksum && $xor ne $checksum ) { |
| 484 |
dpavlin |
10 |
print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n"; |
| 485 |
dpavlin |
16 |
return $bytes . $xor; |
| 486 |
dpavlin |
8 |
} |
| 487 |
dpavlin |
16 |
return $bytes . $checksum; |
| 488 |
dpavlin |
8 |
} |
| 489 |
|
|
|
| 490 |
dpavlin |
20 |
our $dispatch; |
| 491 |
|
|
|
| 492 |
dpavlin |
1 |
sub readchunk { |
| 493 |
dpavlin |
2 |
sleep 1; # FIXME remove |
| 494 |
|
|
|
| 495 |
dpavlin |
1 |
# read header of packet |
| 496 |
|
|
my $header = read_bytes( 2, 'header' ); |
| 497 |
dpavlin |
2 |
my $length = read_bytes( 1, 'length' ); |
| 498 |
|
|
my $len = ord($length); |
| 499 |
dpavlin |
1 |
my $data = read_bytes( $len, 'data' ); |
| 500 |
|
|
|
| 501 |
dpavlin |
2 |
my $payload = substr( $data, 0, -2 ); |
| 502 |
|
|
my $payload_len = length($data); |
| 503 |
|
|
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
| 504 |
dpavlin |
8 |
|
| 505 |
dpavlin |
2 |
my $checksum = substr( $data, -2, 2 ); |
| 506 |
dpavlin |
20 |
checksum( $header . $length . $payload , $checksum ); |
| 507 |
dpavlin |
1 |
|
| 508 |
dpavlin |
22 |
print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), " | sum: ",as_hex($checksum),"\n" if $verbose; |
| 509 |
dpavlin |
2 |
|
| 510 |
|
|
$assert->{len} = $len; |
| 511 |
|
|
$assert->{payload} = $payload; |
| 512 |
|
|
|
| 513 |
dpavlin |
20 |
my $full = $header . $length . $data; # full |
| 514 |
|
|
# find longest match for incomming data |
| 515 |
|
|
my ($to) = grep { |
| 516 |
|
|
my $match = substr($payload,0,length($_)); |
| 517 |
|
|
m/^\Q$match\E/ |
| 518 |
|
|
} sort { length($a) <=> length($b) } keys %$dispatch; |
| 519 |
|
|
warn "?? payload dispatch to ",dump( $payload, $dispatch, $to ) if $debug; |
| 520 |
dpavlin |
2 |
|
| 521 |
dpavlin |
39 |
if ( defined $to && $payload ) { |
| 522 |
dpavlin |
20 |
my $rest = substr( $payload, length($to) ); |
| 523 |
|
|
warn "## DISPATCH payload to with rest", dump( $payload, $to, $rest ) if $debug; |
| 524 |
|
|
$dispatch->{ $to }->( $rest ); |
| 525 |
|
|
} else { |
| 526 |
|
|
print "NO DISPATCH for ",dump( $full ),"\n"; |
| 527 |
|
|
} |
| 528 |
|
|
|
| 529 |
dpavlin |
2 |
return $data; |
| 530 |
dpavlin |
1 |
} |
| 531 |
|
|
|
| 532 |
dpavlin |
2 |
sub str2bytes { |
| 533 |
|
|
my $str = shift || confess "no str?"; |
| 534 |
dpavlin |
5 |
my $b = $str; |
| 535 |
dpavlin |
17 |
$b =~ s/\s+//g; |
| 536 |
|
|
$b =~ s/(..)/\\x$1/g; |
| 537 |
|
|
$b = "\"$b\""; |
| 538 |
dpavlin |
5 |
my $bytes = eval $b; |
| 539 |
dpavlin |
2 |
die $@ if $@; |
| 540 |
dpavlin |
5 |
warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug; |
| 541 |
dpavlin |
2 |
return $bytes; |
| 542 |
|
|
} |
| 543 |
|
|
|
| 544 |
|
|
sub cmd { |
| 545 |
dpavlin |
20 |
my $cmd = shift || confess "no cmd?"; |
| 546 |
|
|
my $cmd_desc = shift || confess "no description?"; |
| 547 |
|
|
my @expect = @_; |
| 548 |
|
|
|
| 549 |
dpavlin |
2 |
my $bytes = str2bytes( $cmd ); |
| 550 |
|
|
|
| 551 |
dpavlin |
16 |
# fix checksum if needed |
| 552 |
|
|
$bytes = checksum( substr( $bytes, 0, -2 ), substr( $bytes, -2, 2 ) ); |
| 553 |
|
|
|
| 554 |
dpavlin |
22 |
warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n" if $verbose; |
| 555 |
dpavlin |
2 |
$assert->{send} = $cmd; |
| 556 |
|
|
writechunk( $bytes ); |
| 557 |
|
|
|
| 558 |
dpavlin |
20 |
while ( @expect ) { |
| 559 |
|
|
my $pattern = str2bytes( shift @expect ) || confess "no pattern?"; |
| 560 |
|
|
my $coderef = shift @expect || confess "no coderef?"; |
| 561 |
|
|
confess "not coderef" unless ref $coderef eq 'CODE'; |
| 562 |
|
|
|
| 563 |
|
|
next if defined $dispatch->{ $pattern }; |
| 564 |
|
|
|
| 565 |
|
|
$dispatch->{ substr($pattern,3) } = $coderef; |
| 566 |
|
|
warn "++ dispatch ", as_hex($pattern) ,dump( $dispatch ) if $debug; |
| 567 |
dpavlin |
2 |
} |
| 568 |
dpavlin |
20 |
|
| 569 |
|
|
readchunk; |
| 570 |
dpavlin |
2 |
} |
| 571 |
|
|
|
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