+++ /dev/null
-package Biblio::RFID::RFID501;
-
-use warnings;
-use strict;
-
-use Data::Dump qw(dump);
-
-=head1 NAME
-
-Biblio::RFID::RFID501 - RFID Standard for Libraries
-
-=head1 DESCRIPTION
-
-This module tries to decode tag format as described in document
-
- RFID 501: RFID Standards for Libraries
-
-L<http://solutions.3m.com/wps/portal/3M/en_US/3MLibrarySystems/Home/Resources/CaseStudiesAndWhitePapers/RFID501/>
-
-Goal is to be compatibile with existing 3M Alphanumeric tag format
-which, as far as I know, isn't specificed anywhere. My documentation about
-this format is available at
-
-L<http://saturn.ffzg.hr/rot13/index.cgi?hitchhikers_guide_to_rfid>
-
-=head1 Data model
-
-=head2 3M Alphanumeric tag
-
- 0 04 is 00 tt i [4 bit] = number of item in set [1 .. i .. s]
- s [4 bit] = total items in set
- tt [8 bit] = item type
-
- 1 dd dd dd dd dd [16 bytes] = barcode data
- 2 dd dd dd dd
- 3 dd dd dd dd
- 4 dd dd dd dd
-
- 5 bb bl ll ll b [12 bit] = branch [unsigned]
- l [20 bit] = library [unsigned]
-
- 6 cc cc cc cc c [32 bit] = custom signed integer
-
-=head2 3M Manufacturing Blank
-
- 0 55 55 55 55
- 1 55 55 55 55
- 2 55 55 55 55
- 3 55 55 55 55
- 4 55 55 55 55
- 5 55 55 55 55
- 6 00 00 00 00
-
-=head2 Generic blank
-
- 0 00 00 00 00
- 1 00 00 00 00
- 2 00 00 00 00
-
-=head1 Security
-
-AFI byte on RFID tag is used for security.
-
-In my case, we have RFID door which can only read AFI bytes from tag and issue
-alarm sound or ignore it depending on value of byte.
-
-=over 8
-
-=item 0xD7 214
-
-secured item (door will beep)
-
-=item 0xDA 218
-
-unsecured (door will ignore it)
-
-=back
-
-
-=head1 METHODS
-
-=head2 to_hash
-
- my $hash = Biblio::RFID::Decode::RFID501->to_hash( $bytes );
-
- my $hash = Biblio::RFID::Decode::RFID501->to_hash( [ 'blk1', 'blk2', ... , 'blk7' ] );
-
-=head2 from_hash
-
- my $blocks = Biblio::RFID::Decode::RFID->from_hash({ content => "1301234567" });
-
-=head2 blank_3m
-
-=head2 blank
-
- my $blocks = Biblio::RFID::Decode::RFID->blank;
-
-=cut
-
-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',
-};
-
-sub to_hash {
- my ( $self, $data ) = @_;
-
- return unless $data;
-
- $data = join('', @$data) if ref $data eq 'ARRAY';
-
- warn "## to_hash ",dump($data);
-
- my ( $u1, $set_item, $u2, $type, $content, $br_lib, $custom, $zero ) = unpack('C4Z16Nl>l',$data);
- my $hash = {
- u1 => $u1, # FIXME 0x04
- set => ( $set_item & 0xf0 ) >> 4,
- total => ( $set_item & 0x0f ),
-
- u2 => $u2, # FIXME 0x00
-
- type => $type,
- type_label => $item_type->{$type},
-
- content => $content,
-
- branch => $br_lib >> 20,
- library => $br_lib & 0x000fffff,
-
- custom => $custom,
- };
-
- warn "expected first byte to be 0x04, not $u1\n" if $u1 != 4;
- warn "expected third byte to be 0x00, not $u2\n" if $u2 != 0;
- warn "expected last block to be zero, not $zero\n" if $zero != 0;
-
- return $hash;
-}
-
-sub from_hash {
- my ( $self, $hash ) = @_;
-
- warn "## from_hash ",dump($hash);
-
- return pack('C4Z16Nl>l',
- 0x04,
- ( $hash->{set} << 4 ) | ( $hash->{total} & 0x0f ),
- 0x00,
- $hash->{type},
-
- $hash->{content},
-
- ( $hash->{branch} << 20 ) | ( $hash->{library} & 0x000fffff ),
-
- $hash->{custom},
- 0x00,
- );
-}
-
-sub blank_3m {
- return ( "\x55" x ( 6 * 4 ) ) . ( "\x00" x 4 );
-}
-
-sub blank {
- return "\x00" x ( 4 * 3 );
-}
-
-1;
projects / Biblio-RFID.git / blobdiff