--- 3m-810.pl	2008/10/03 21:47:24	21
+++ 3m-810.pl	2009/06/01 21:07:11	39
@@ -7,6 +7,36 @@
 use Data::Dump qw/dump/;
 use Carp qw/confess/;
 use Getopt::Long;
+use File::Slurp;
+
+use IO::Socket::INET;
+
+my $meteor_server = '192.168.1.13:4671';
+my $meteor_fh;
+
+sub meteor {
+	my @a = @_;
+	push @a, scalar localtime() if $a[0] =~ m{^info};
+
+	if ( ! defined $meteor_fh ) {
+		if ( $meteor_fh =
+				IO::Socket::INET->new(
+					PeerAddr => $meteor_server,
+					Timeout => 1,
+				)
+		) {
+			warn "# meteor connected to $meteor_server";
+		} else {
+			warn "can't connect to meteor $meteor_server: $!";
+			$meteor_fh = 0;
+		}
+	}
+
+	if ( $meteor_fh ) {
+		warn ">> meteor ",dump( @a );
+		print $meteor_fh "ADDMESSAGE test ",join('|',@a),"\n"
+	}
+}
 
 my $debug = 0;
 
@@ -17,6 +47,9 @@
 my $stopbits  = "1";
 my $handshake = "none";
 
+my $program_path = './program/';
+my $secure_path = './secure/';
+
 my $response = {
 	'd500090400110a0500027250'				=> 'version?',
 	'd60007fe00000500c97b'					=> 'no tag in range',
@@ -30,15 +63,18 @@
 };
 
 GetOptions(
-	'd|debug+'      => \$debug,
+	'd|debug+'    => \$debug,
 	'device=s'    => \$device,
 	'baudrate=i'  => \$baudrate,
 	'databits=i'  => \$databits,
 	'parity=s'    => \$parity,
 	'stopbits=i'  => \$stopbits,
 	'handshake=s' => \$handshake,
+	'meteor=s'    => \$meteor_server,
 ) or die $!;
 
+my $verbose = $debug > 0 ? $debug-- : 0;
+
 =head1 NAME
 
 3m-810 - support for 3M 810 RFID reader
@@ -73,6 +109,23 @@
 my $tags_data;
 my $visible_tags;
 
+my $item_type = {
+	1 => 'Book',
+	6 => 'CD/CD ROM',
+	2 => 'Magazine',
+	13 => 'Book with Audio Tape',
+	9 => 'Book with CD/CD ROM',
+	0 => 'Other',
+
+	5 => 'Video',
+	4 => 'Audio Tape',
+	3 => 'Bound Journal',
+	8 => 'Book with Diskette',
+	7 => 'Diskette',
+};
+
+warn "## known item type: ",dump( $item_type ) if $debug;
+
 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);
@@ -81,7 +134,7 @@
 $parity=$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();
@@ -96,7 +149,9 @@
 
 cmd( 'D5 00  05   04 00 11                 8C66', 'hw version',
      'D5 00  09   04 00 11   0A 05 00 02   7250', sub {
-	print "hardware version ", join('.', unpack('CCCC', skip_assert(3) )), "\n";
+	my $hw_ver = join('.', unpack('CCCC', skip_assert(3) ));
+	print "hardware version $hw_ver\n";
+	meteor( 'info', "Found reader hardware $hw_ver" );
 });
 
 cmd( 'D6 00  0C   13  04  01 00  02 00  03 00  04 00   AAF2','FIXME: stats?',
@@ -105,17 +160,15 @@
 # start scanning for tags
 
 cmd( 'D6 00  05   FE     00  05         FA40', "scan for tags, retry $_",
-     'D6 00  07   FE  00 00  05     00  C97B', sub {
-	 	assert();
-		print "no tag in range\n";
-
-	},
 	 '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( 'info-none-in-range' );
+			$tags_data = {};
 		} else {
 
 			my $tags = substr( $rest, 1 );
@@ -126,65 +179,192 @@
 			my @tags;
 			push @tags, uc(unpack('H16', substr($tags, $_ * 8, 8))) foreach ( 0 .. $nr - 1 );
 			warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug;
-			print "seen $nr tags: ", join(',', @tags ) , "\n";
+			print "$nr tags in range: ", join(',', @tags ) , "\n";
+
+			meteor( 'info-in-range', join(' ',@tags));
+
+			update_visible_tags( @tags );
+		}
+	}
+) while(1);
+#) foreach ( 1 .. 100 );
+
 
-			my $removed_tags = $visible_tags;
-			$visible_tags = {};
 
-			foreach my $tag ( @tags ) {
-				next if $visible_tags->{$tag}++;
+sub update_visible_tags {
+	my @tags = @_;
+
+	my $last_visible_tags = $visible_tags;
+	$visible_tags = {};
+
+	foreach my $tag ( @tags ) {
+		if ( ! defined $last_visible_tags->{$tag} ) {
+			if ( defined $tags_data->{$tag} ) {
+#				meteor( 'in-range', $tag );
+			} else {
+				meteor( 'read', $tag );
 				read_tag( $tag );
-				if ( delete $removed_tags->{$tag} ) {
-					print "removed tag $tag\n";
-				}
 			}
+			$visible_tags->{$tag}++;
+		} else {
+			warn "## using cached data for $tag" if $debug;
+		}
+		delete $last_visible_tags->{$tag}; # leave just missing tags
 
+		if ( -e "$program_path/$tag" ) {
+				meteor( 'write', $tag );
+				write_tag( $tag );
+		}
+		if ( -e "$secure_path/$tag" ) {
+				meteor( 'secure', $tag );
+				secure_tag( $tag );
 		}
 	}
-) foreach ( 1 .. 100 );
+
+	foreach my $tag ( keys %$last_visible_tags ) {
+		my $data = delete $tags_data->{$tag};
+		print "removed tag $tag with data ",dump( $data ),"\n";
+		meteor( 'removed', $tag );
+	}
+
+	warn "## update_visible_tags(",dump( @tags ),") = ",dump( $visible_tags )," removed: ",dump( $last_visible_tags ), " data: ",dump( $tags_data ) if $debug;
+}
+
+my $tag_data_block;
+
+sub read_tag_data {
+	my ($start_block,$rest) = @_;
+	die "no rest?" unless $rest;
+	warn "## DATA [$start_block] ", 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
+	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 ));
+		my $expected_ord = $nr + $start_block;
+		die "got block $ord, expected block $expected_ord from ",dump( $block ) if $ord != $expected_ord;
+		my $data  = substr( $block, 2 );
+		die "data payload should be 4 bytes" if length($data) != 4;
+		warn sprintf "## tag %9s %02d %s |%-4s|\n", $tag, $ord, as_hex( $data ), $data;
+		$tag_data_block->{$tag}->[ $ord ] = $data;
+	}
+	$tags_data->{ $tag } = join('', @{ $tag_data_block->{$tag} });
+
+	my $item_type_nr = ord(substr( $tags_data->{$tag}, 3, 1 ));
+	print "DATA $tag ",dump( $tags_data ), " item type: ", ( $item_type->{ $item_type_nr } || "UNKWOWN '$item_type_nr' in " . dump( $item_type ) ), "\n";
+}
 
 sub read_tag {
 	my ( $tag ) = @_;
 
+	confess "no tag?" unless $tag;
+
 	print "read_tag $tag\n";
 
 	cmd(
-		"D6 00  0D  02      $tag   00   03     1CC4", 'read $tag offset: 0 blocks: 3',
+		"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";
+			read_tag_data( 0, @_ );
+		},
+	);
+
+	cmd(
+		"D6 00  0D  02      $tag   03   04     3970", "read $tag offset: 3 blocks: 4",
+		"D6 00  25  02 00", sub { # $tag   04                         03 00   30 30 00 00   04 00   00 00 00 00   
+			read_tag_data( 3, @_ );
+		}
+	);
+
+	my $security;
+
+	cmd(
+		"D6 00 0B 0A $tag 1234", "check security $tag",
+		"D6 00 0D 0A 00", sub {
+			my $rest = shift;
+			my $from_tag;
+			( $from_tag, $security ) = ( substr($rest,0,8), substr($rest,8,1) );
+			die "security from other tag: ",as_hex( $from_tag ) if $from_tag ne str2bytes( $tag );
+			$security = as_hex( $security );
+			warn "# SECURITY $tag = $security\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";
+	my $data = $tags_data->{$tag} || die "no data for $tag";
+	my ( $u1, $set_item, $u2, $type, $content, $br_lib, $custom ) = unpack('C4Z16Nl>',$data);
+	my $set   = ( $set_item & 0xf0 ) >> 4;
+	my $total = ( $set_item & 0x0f );
+	my $branch  = $br_lib >> 20;
+	my $library = $br_lib & 0x000fffff;
+	print "TAG $tag [$u1] set: $set/$total [$u2] type: $type '$content' library: $library branch: $branch custom: $custom security: $security\n";
+
 }
-	warn "?? D6 00  0F  FE  00 00  05 01   $tag  941A ##### ready?\n";
 
+sub write_tag {
+	my ($tag) = @_;
+
+	my $path = "$program_path/$tag";
+
+	my $data = read_file( $path );
+	my $hex_data;
+
+	if ( $data =~ s{^hex\s+}{} ) {
+		$hex_data = $data;
+		$hex_data =~ s{\s+}{}g;
+	} else {
+
+		# pad to block size
+		$data .= "\0" x ( 4 - ( length($data) % 4 ) );
+
+		my $max_len = 7 * 4;
+
+		if ( length($data) > $max_len ) {
+			$data = substr($data,0,$max_len);
+			warn "strip content to $max_len bytes\n";
+		}
+
+		$hex_data = unpack('H*', $data);
+	}
+
+	my $len = length($hex_data) / 2;
+	my $blocks = sprintf('%02x', $len / 4);
+
+	print "write_tag $tag = ",dump( $data ), " [$len/$blocks] == $hex_data\n";
+
+	cmd(
+		"d6 00  ff  04  $tag  00 $blocks 00  $hex_data  ffff", "write $tag",
+		"d6 00  0d  04 00  $tag  $blocks  afb1", sub { assert() },
+	) foreach ( 1 .. 3 ); # xxx 3m software does this three times!
+
+	my $to = $path;
+	$to .= '.' . time();
+
+	rename $path, $to;
+	print ">> $to\n";
+
+	delete $tags_data->{$tag};	# force re-read of tag
+}
+
+sub secure_tag {
+	my ($tag) = @_;
+
+	my $path = "$secure_path/$tag";
+	my $data = substr(read_file( $path ),0,2);
+
+	cmd(
+		"d6 00  0c  09  $tag $data 1234", "secure $tag -> $data",
+		"d6 00  0c  09 00  $tag  1234", sub { assert() },
+	);
+
+	my $to = $path;
+	$to .= '.' . time();
+
+	rename $path, $to;
+	print ">> $to\n";
 }
 
 exit;
@@ -219,6 +399,8 @@
 {
 	my $str=shift;
 	my $count = $port->write($str);
+	my $len = length($str);
+	die "wrong write length $count != $len in ",as_hex( $str ) if $count != $len;
 	print "#> ", as_hex( $str ), "\t[$count]\n" if $debug;
 }
 
@@ -238,6 +420,7 @@
 	my $data = '';
 	while ( length( $data ) < $len ) {
 		my ( $c, $b ) = $port->read(1);
+		die "no bytes on port: $!" unless defined $b;
 		#warn "## got $c bytes: ", as_hex($b), "\n";
 		$data .= $b;
 	}
@@ -256,6 +439,8 @@
 sub assert {
 	my ( $from, $to ) = @_;
 
+	return unless $assert->{expect};
+
 	$from ||= 0;
 	$to = length( $assert->{expect} ) if ! defined $to;
 
@@ -284,17 +469,17 @@
 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);
+		$bytes = substr($bytes,0,2) . chr($len_real) . substr($bytes,3);
 	}
 
+	my $xor = crcccitt( substr($bytes,1) );	# skip D6
+	warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug;
+
 	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;
@@ -320,7 +505,7 @@
 	my $checksum = substr( $data, -2, 2 );
 	checksum( $header . $length . $payload , $checksum );
 
-	print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), " | sum: ",as_hex($checksum),"\n";
+	print "<< ",as_hex( $header ), " [$len] ", as_hex( $payload ), " | sum: ",as_hex($checksum),"\n" if $verbose;
 
 	$assert->{len}      = $len;
 	$assert->{payload}  = $payload;
@@ -333,7 +518,7 @@
 	} sort { length($a) <=> length($b) } keys %$dispatch;
 	warn "?? payload dispatch to ",dump( $payload, $dispatch, $to ) if $debug;
 
-	if ( defined $to ) {
+	if ( defined $to && $payload ) {
 		my $rest = substr( $payload, length($to) );
 		warn "## DISPATCH payload to with rest", dump( $payload, $to, $rest ) if $debug;
 		$dispatch->{ $to }->( $rest );
@@ -366,7 +551,7 @@
 	# fix checksum if needed
 	$bytes = checksum( substr( $bytes, 0, -2 ), substr( $bytes, -2, 2 ) );
 
-	warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n";
+	warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n" if $verbose;
 	$assert->{send} = $cmd;
 	writechunk( $bytes );