--- 3m-810.pl 2008/09/28 15:59:38 4 +++ 3m-810.pl 2009/03/28 03:47:10 23 @@ -6,9 +6,27 @@ use Data::Dump qw/dump/; use Carp qw/confess/; +use Getopt::Long; + +use IO::Socket::INET; + +my $meteor = IO::Socket::INET->new( '192.168.1.13:4671' ) || die "can't connect to meteor: $!"; + +sub meteor { + my ( $item, $html ) = @_; + warn ">> meteor $item $html\n"; + print $meteor "ADDMESSAGE test $item|" . localtime() . "
$html\n"; +} my $debug = 0; +my $device = "/dev/ttyUSB0"; +my $baudrate = "19200"; +my $databits = "8"; +my $parity = "none"; +my $stopbits = "1"; +my $handshake = "none"; + my $response = { 'd500090400110a0500027250' => 'version?', 'd60007fe00000500c97b' => 'no tag in range', @@ -21,13 +39,25 @@ 'd60017fe00000502e00401003123aa26e00401003123aa283124' => 'tag #1 + tag red-stripe', }; +GetOptions( + 'd|debug+' => \$debug, + 'device=s' => \$device, + 'baudrate=i' => \$baudrate, + 'databits=i' => \$databits, + 'parity=s' => \$parity, + 'stopbits=i' => \$stopbits, + 'handshake=s' => \$handshake, +) or die $!; + +my $verbose = $debug > 0 ? $debug-- : 0; + =head1 NAME 3m-810 - support for 3M 810 RFID reader =head1 SYNOPSIS -3m-810.pl [DEVICE [BAUD [DATA [PARITY [STOP [FLOW]]]]]] +3m-810.pl --device /dev/ttyUSB0 =head1 DESCRIPTION @@ -39,6 +69,8 @@ L +L + =head1 AUTHOR Dobrica Pavlinusic L @@ -50,23 +82,18 @@ =cut -# your serial port. -my ($device,$baudrate,$databits,$parity,$stopbits,$handshake)=@ARGV; -$device ||= "/dev/ttyUSB0"; -$baudrate ||= "19200"; -$databits ||= "8"; -$parity ||= "none"; -$stopbits ||= "1"; -$handshake ||= "none"; +my $tags_data; +my $visible_tags; -my $port=new Device::SerialPort($device) || die "new($device): $!\n"; +my $port=new Device::SerialPort($device) || die "can't open serial port $device: $!\n"; +warn "using $device $handshake $baudrate $databits $parity $stopbits" if $debug; $handshake=$port->handshake($handshake); $baudrate=$port->baudrate($baudrate); $databits=$port->databits($databits); $parity=$port->parity($parity); $stopbits=$port->stopbits($stopbits); -print "## using $device $baudrate $databits $parity $stopbits\n"; +print "## using $device $baudrate $databits $parity $stopbits debug: $debug verbose: $verbose\n"; # Just in case: reset our timing and buffers $port->lookclear(); @@ -79,34 +106,126 @@ # initial hand-shake with device -cmd( 'D5 00 05 04 00 11 8C66', 'hw version?', - 'D5 00 09 04 00 11 0A 05 00 02 7250', 'hw 10.5.0.2', sub { - my ( $len, $payload, $checksum ) = @_; - assert( 0, 3 ); - print "hardware version ", join('.', unpack('CCCC', substr($payload,3,4))), "\n"; +cmd( 'D5 00 05 04 00 11 8C66', 'hw version', + 'D5 00 09 04 00 11 0A 05 00 02 7250', sub { + my $hw_ver = join('.', unpack('CCCC', skip_assert(3) )); + print "hardware version $hw_ver\n"; + meteor( -1, "Found reader $hw_ver" ); }); -cmd( 'D6 00 0C 13 04 01 00 02 00 03 00 04 00 AAF2','stats?', - 'D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778','FIXME: unimplemented', sub { assert( 0 ) } ); +cmd( 'D6 00 0C 13 04 01 00 02 00 03 00 04 00 AAF2','FIXME: stats?', + 'D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778', sub { assert() } ); # start scanning for tags -cmd( 'D6 00 05 FE 00 05 FA40', "XXX scan $_", - 'D6 00 07 FE 00 00 05 00 C97B', 'no tag' ) foreach ( 1 .. 10 ); -# D6 00 0F FE 00 00 05 01 E00401003123AA26 941A # seen - -cmd( 'D6 00 0D 02 E00401003123AA26 00 03 1CC4', 'read offset: 0 blocks: 3' ); - -# D6 00 1F 02 00 E00401003123AA26 03 00 00 04 11 00 01 01 00 30 30 30 30 02 00 30 30 30 30 E5F4 -warn "D6 00 1F 02 00 E00401003123AA26 03 00 00 04 11 00 01 01 00 31 32 33 34 02 00 35 36 37 38 531F\n"; - -cmd( 'D6 00 0D 02 E00401003123AA26 03 04 3970', 'read offset: 3 blocks: 4' ); - -# D6 00 25 02 00 E00401003123AA26 04 03 00 30 30 00 00 04 00 00 00 00 00 -# 05 00 00 00 00 00 06 00 00 00 00 00 B9BA -warn "D6 00 25 02 00 E00401003123AA26 04 03 00 39 30 31 32 04 00 33 34 35 36 - 05 00 00 00 00 00 06 00 00 00 00 00 524B\n"; -warn "D6 00 0F FE 00 00 05 01 E00401003123AA26 941A ##### ready?\n"; +cmd( 'D6 00 05 FE 00 05 FA40', "scan for tags, retry $_", + 'D6 00 0F FE 00 00 05 ', sub { # 01 E00401003123AA26 941A # seen, serial length: 8 + my $rest = shift || die "no rest?"; + my $nr = ord( substr( $rest, 0, 1 ) ); + + if ( ! $nr ) { + print "no tags in range\n"; + update_visible_tags(); + meteor( -1, "No tags in range" ); + } else { + + my $tags = substr( $rest, 1 ); + + my $tl = length( $tags ); + die "wrong length $tl for $nr tags: ",dump( $tags ) if $tl =! $nr * 8; + + my @tags; + push @tags, uc(unpack('H16', substr($tags, $_ * 8, 8))) foreach ( 0 .. $nr - 1 ); + warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug; + print "$nr tags in range: ", join(',', @tags ) , "\n"; + + update_visible_tags( @tags ); + + my $html = join('', map { "
  • $_" } @tags); + meteor( 0, "Tags:
      $html
    " ); + } + } +) foreach ( 1 .. 1000 ); + + + +sub update_visible_tags { + my @tags = @_; + + my $last_visible_tags = $visible_tags; + $visible_tags = {}; + + foreach my $tag ( @tags ) { + if ( ! defined $last_visible_tags->{$tag} ) { + read_tag( $tag ); + $visible_tags->{$tag}++; + } else { + warn "## using cached data for $tag" if $debug; + } + delete $last_visible_tags->{$tag}; # leave just missing tags + } + + foreach my $tag ( keys %$last_visible_tags ) { + my $data = delete $tags_data->{$tag}; + print "removed tag $tag with data ",dump( $data ),"\n"; + } + + warn "## update_visible_tags(",dump( @tags ),") = ",dump( $visible_tags )," removed: ",dump( $last_visible_tags ), " data: ",dump( $tags_data ) if $debug; +} + + +sub read_tag { + my ( $tag ) = @_; + + confess "no tag?" unless $tag; + + return if defined $tags_data->{$tag}; + + print "read_tag $tag\n"; + + cmd( + "D6 00 0D 02 $tag 00 03 1CC4", 'read $tag offset: 0 blocks: 3', + "D6 00 0F FE 00 00 05 01 $tag 941A", sub { + print "FIXME: tag $tag ready?\n"; + }, + "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"; + my $rest = shift || die "no rest?"; + warn "## DATA ", dump( $rest ) if $debug; + my $tag = uc(unpack('H16',substr( $rest, 0, 8 ))); + my $blocks = ord(substr($rest,8,1)); + $rest = substr($rest,9); # leave just data blocks + my @data; + foreach my $nr ( 0 .. $blocks - 1 ) { + my $block = substr( $rest, $nr * 6, 6 ); + warn "## block ",as_hex( $block ) if $debug; + my $ord = unpack('v',substr( $block, 0, 2 )); + die "got block $ord, expected block $nr from ",dump( $block ) if $ord != $nr; + my $data = substr( $block, 2 ); + die "data payload should be 4 bytes" if length($data) != 4; + warn sprintf "## tag %08s %02d %s |%-4s|\n", $tag, $ord, as_hex( $data ), $data; + $data[ $ord ] = $data; + } + $tags_data->{ $tag } = join('', @data); + print "DATA $tag ",dump( $tags_data ), "\n"; + } + ); + + # D6 00 1F 02 00 $tag 03 00 00 04 11 00 01 01 00 30 30 30 30 02 00 30 30 30 30 E5F4 +if (0) { + cmd( "D6 00 0D 02 $tag 03 04 3970", 'read offset: 3 blocks: 4' ); + + # D6 00 25 02 00 $tag 04 03 00 30 30 00 00 04 00 00 00 00 00 + # $tag 05 00 00 00 00 00 06 00 00 00 00 00 B9BA + warn "?? D6 00 25 02 00 $tag 04 03 00 39 30 31 32 04 00 ....\n"; +} + warn "?? D6 00 0F FE 00 00 05 01 $tag 941A ##### ready?\n"; + + my $item = unpack('H*', substr($tag,-8) ) % 100000; + meteor( $item, "Loading $item" ); + +} + +exit; for ( 1 .. 3 ) { @@ -138,7 +257,7 @@ { my $str=shift; my $count = $port->write($str); - print ">> ", as_hex( $str ), "\t[$count]\n"; + print "#> ", as_hex( $str ), "\t[$count]\n" if $debug; } sub as_hex { @@ -146,9 +265,10 @@ foreach my $str ( @_ ) { my $hex = unpack( 'H*', $str ); $hex =~ s/(..)/$1 /g if length( $str ) > 2; + $hex =~ s/\s+$//; push @out, $hex; } - return join(' ', @out); + return join(' | ', @out); } sub read_bytes { @@ -164,21 +284,65 @@ return $data; } -my $assert; +our $assert; + +# my $rest = skip_assert( 3 ); +sub skip_assert { + assert( 0, shift ); +} sub assert { my ( $from, $to ) = @_; + $from ||= 0; $to = length( $assert->{expect} ) if ! defined $to; my $p = substr( $assert->{payload}, $from, $to ); my $e = substr( $assert->{expect}, $from, $to ); warn "EXPECTED ",as_hex($e), " GOT ", as_hex($p), " [$from-$to] in ",dump( $assert ), "\n" if $e ne $p; + + # return the rest + return substr( $assert->{payload}, $to ); } -sub readchunk { - my ( $parser ) = @_; +use Digest::CRC; + +sub crcccitt { + my $bytes = shift; + my $crc = Digest::CRC->new( + # midified CCITT to xor with 0xffff instead of 0x0000 + width => 16, init => 0xffff, xorout => 0xffff, refout => 0, poly => 0x1021, refin => 0, + ) or die $!; + $crc->add( $bytes ); + pack('n', $crc->digest); +} + +# my $checksum = checksum( $bytes ); +# my $checksum = checksum( $bytes, $original_checksum ); +sub checksum { + my ( $bytes, $checksum ) = @_; + + my $xor = crcccitt( substr($bytes,1) ); # skip D6 + warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug; + + my $len = ord(substr($bytes,2,1)); + my $len_real = length($bytes) - 1; + + if ( $len_real != $len ) { + print "length wrong: $len_real != $len\n"; + $bytes = substr($bytes,0,2) . chr($len_real) . substr($bytes,4); + } + if ( defined $checksum && $xor ne $checksum ) { + print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n"; + return $bytes . $xor; + } + return $bytes . $checksum; +} + +our $dispatch; + +sub readchunk { sleep 1; # FIXME remove # read header of packet @@ -186,47 +350,75 @@ my $length = read_bytes( 1, 'length' ); my $len = ord($length); my $data = read_bytes( $len, 'data' ); - my ( $cmd ) = unpack('C', $data ); my $payload = substr( $data, 0, -2 ); my $payload_len = length($data); warn "## payload too short $payload_len != $len\n" if $payload_len != $len; + my $checksum = substr( $data, -2, 2 ); - # FIXME check checksum + checksum( $header . $length . $payload , $checksum ); - print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), "checksum: ", as_hex( $checksum ),"\n"; + print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), " | sum: ",as_hex($checksum),"\n" if $verbose; $assert->{len} = $len; $assert->{payload} = $payload; - $assert->{checksum} = $checksum; - $parser->( $len, $payload, $checksum ) if $parser && ref($parser) eq 'CODE'; + my $full = $header . $length . $data; # full + # find longest match for incomming data + my ($to) = grep { + my $match = substr($payload,0,length($_)); + m/^\Q$match\E/ + } sort { length($a) <=> length($b) } keys %$dispatch; + warn "?? payload dispatch to ",dump( $payload, $dispatch, $to ) if $debug; + + if ( defined $to ) { + my $rest = substr( $payload, length($to) ); + warn "## DISPATCH payload to with rest", dump( $payload, $to, $rest ) if $debug; + $dispatch->{ $to }->( $rest ); + } else { + print "NO DISPATCH for ",dump( $full ),"\n"; + } return $data; } sub str2bytes { my $str = shift || confess "no str?"; - $str =~ s/\s+(\S\S)(\S\S)+\s*/ $1 $2/; # fix checksum - $str =~ s/\s+/\\x/g; - $str = '"\x' . $str . '"'; - my $bytes = eval $str; + my $b = $str; + $b =~ s/\s+//g; + $b =~ s/(..)/\\x$1/g; + $b = "\"$b\""; + my $bytes = eval $b; die $@ if $@; + warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug; return $bytes; } sub cmd { - my ( $cmd, $cmd_desc, $expect, $expect_desc, $coderef ) = @_; + my $cmd = shift || confess "no cmd?"; + my $cmd_desc = shift || confess "no description?"; + my @expect = @_; + my $bytes = str2bytes( $cmd ); - warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n"; + # fix checksum if needed + $bytes = checksum( substr( $bytes, 0, -2 ), substr( $bytes, -2, 2 ) ); + + warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n" if $verbose; $assert->{send} = $cmd; writechunk( $bytes ); - if ( $expect ) { - warn "?? $expect", $expect_desc ? "\t## $expect_desc" : '', "\n"; - $assert->{expect} = substr(str2bytes($expect), 3, -2); # just expected payload - readchunk( $coderef ); + while ( @expect ) { + my $pattern = str2bytes( shift @expect ) || confess "no pattern?"; + my $coderef = shift @expect || confess "no coderef?"; + confess "not coderef" unless ref $coderef eq 'CODE'; + + next if defined $dispatch->{ $pattern }; + + $dispatch->{ substr($pattern,3) } = $coderef; + warn "++ dispatch ", as_hex($pattern) ,dump( $dispatch ) if $debug; } + + readchunk; }