--- 3m-810.pl 2008/09/28 12:57:32 1
+++ 3m-810.pl 2009/03/28 03:47:10 23
@@ -5,6 +5,27 @@
use warnings;
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?',
@@ -18,13 +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 ? $debug-- : 0;
+
=head1 NAME
3m-810 - support for 3M 810 RFID reader
=head1 SYNOPSIS
-3m-810.pl [DEVICE [BAUD [DATA [PARITY [STOP [FLOW]]]]]]
+3m-810.pl --device /dev/ttyUSB0
=head1 DESCRIPTION
@@ -36,6 +69,8 @@
L
+L
+
=head1 AUTHOR
Dobrica Pavlinusic L
@@ -47,23 +82,18 @@
=cut
-# your serial port.
-my ($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
$port->lookclear();
@@ -74,42 +104,128 @@
#$port->stty_inpck(1);
#$port->stty_istrip(1);
-sub cmd {
- my ( $cmd, $desc, $expect ) = @_;
- $cmd =~ s/\s+(\S\S)(\S\S)+\s*/ $1 $2/; # fix checksum
- $cmd =~ s/\s+/\\x/g;
- $cmd = '"\x' . $cmd . '"';
- my $bytes = eval $cmd;
- die $@ if $@;
- warn ">> ", as_hex( $bytes ), "\t$desc\n";
- writechunk( $bytes );
- warn "?? $expect\n" if $expect;
- readchunk();
+# 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', 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','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', "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:" );
+ }
+ }
+) 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;
}
-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' );
-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
+sub read_tag {
+ my ( $tag ) = @_;
-cmd( 'D6 00 05 FE 00 05 FA40', "XXX scan $_",
- 'D6 00 07 FE 00 00 05 00 C97B -- no tag' ) foreach ( 1 .. 10 );
+ confess "no tag?" unless $tag;
-# D6 00 0F FE 00 00 05 01 E00401003123AA26 941A # seen
+ return if defined $tags_data->{$tag};
-cmd( 'D6 00 0D 02 E00401003123AA26 00 03 1CC4', 'read offset: 0 blocks: 3' );
+ print "read_tag $tag\n";
-# 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 $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";
-cmd( 'D6 00 0D 02 E00401003123AA26 03 04 3970', 'read offset: 3 blocks: 4' );
+ my $item = unpack('H*', substr($tag,-8) ) % 100000;
+ meteor( $item, "Loading $item" );
-# 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";
+}
+
+exit;
for ( 1 .. 3 ) {
@@ -140,19 +256,19 @@
sub writechunk
{
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 {
my @out;
foreach my $str ( @_ ) {
my $hex = unpack( 'H*', $str );
- $hex =~ s/(..)/$1 /g;
+ $hex =~ s/(..)/$1 /g if length( $str ) > 2;
+ $hex =~ s/\s+$//;
push @out, $hex;
}
- return join(' ', @out);
+ return join(' | ', @out);
}
sub read_bytes {
@@ -164,19 +280,145 @@
$data .= $b;
}
$desc ||= '?';
- warn "#< ", as_hex($data), "\t$desc\n";
+ warn "#< ", as_hex($data), "\t$desc\n" if $debug;
return $data;
}
+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 );
+}
+
+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
my $header = read_bytes( 2, 'header' );
- my $len = ord( read_bytes( 1, 'length' ) );
+ my $length = read_bytes( 1, 'length' );
+ my $len = ord($length);
my $data = read_bytes( $len, 'data' );
- warn "<< ",as_hex( $header, ), " [$len] ", as_hex( $data ), "\n";
+ 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 );
+ checksum( $header . $length . $payload , $checksum );
+
+ print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), " | sum: ",as_hex($checksum),"\n" if $verbose;
+
+ $assert->{len} = $len;
+ $assert->{payload} = $payload;
+
+ 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?";
+ 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 = shift || confess "no cmd?";
+ my $cmd_desc = shift || confess "no description?";
+ my @expect = @_;
+
+ my $bytes = str2bytes( $cmd );
+
+ # 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 );
+
+ 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;
+ }
- sleep 1;
+ readchunk;
}