6 |
|
|
7 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
8 |
use Carp qw/confess/; |
use Carp qw/confess/; |
9 |
|
use Getopt::Long; |
10 |
|
|
11 |
my $debug = 0; |
my $debug = 0; |
12 |
|
|
13 |
|
my $device = "/dev/ttyUSB0"; |
14 |
|
my $baudrate = "19200"; |
15 |
|
my $databits = "8"; |
16 |
|
my $parity = "none"; |
17 |
|
my $stopbits = "1"; |
18 |
|
my $handshake = "none"; |
19 |
|
|
20 |
my $response = { |
my $response = { |
21 |
'd500090400110a0500027250' => 'version?', |
'd500090400110a0500027250' => 'version?', |
22 |
'd60007fe00000500c97b' => 'no tag in range', |
'd60007fe00000500c97b' => 'no tag in range', |
29 |
'd60017fe00000502e00401003123aa26e00401003123aa283124' => 'tag #1 + tag red-stripe', |
'd60017fe00000502e00401003123aa26e00401003123aa283124' => 'tag #1 + tag red-stripe', |
30 |
}; |
}; |
31 |
|
|
32 |
|
GetOptions( |
33 |
|
'd|debug+' => \$debug, |
34 |
|
'device=s' => \$device, |
35 |
|
'baudrate=i' => \$baudrate, |
36 |
|
'databits=i' => \$databits, |
37 |
|
'parity=s' => \$parity, |
38 |
|
'stopbits=i' => \$stopbits, |
39 |
|
'handshake=s' => \$handshake, |
40 |
|
) or die $!; |
41 |
|
|
42 |
|
my $verbose = $debug > 0 ? $debug-- : 0; |
43 |
|
|
44 |
=head1 NAME |
=head1 NAME |
45 |
|
|
46 |
3m-810 - support for 3M 810 RFID reader |
3m-810 - support for 3M 810 RFID reader |
47 |
|
|
48 |
=head1 SYNOPSIS |
=head1 SYNOPSIS |
49 |
|
|
50 |
3m-810.pl [DEVICE [BAUD [DATA [PARITY [STOP [FLOW]]]]]] |
3m-810.pl --device /dev/ttyUSB0 |
51 |
|
|
52 |
=head1 DESCRIPTION |
=head1 DESCRIPTION |
53 |
|
|
59 |
|
|
60 |
L<perl(1)> |
L<perl(1)> |
61 |
|
|
62 |
|
L<http://stackoverflow.com/questions/149617/how-could-i-guess-a-checksum-algorithm> |
63 |
|
|
64 |
=head1 AUTHOR |
=head1 AUTHOR |
65 |
|
|
66 |
Dobrica Pavlinusic <dpavlin@rot13.org> L<http://www.rot13.org/~dpavlin/> |
Dobrica Pavlinusic <dpavlin@rot13.org> L<http://www.rot13.org/~dpavlin/> |
72 |
|
|
73 |
=cut |
=cut |
74 |
|
|
75 |
# your serial port. |
my $port=new Device::SerialPort($device) || die "can't open serial port $device: $!\n"; |
76 |
my ($device,$baudrate,$databits,$parity,$stopbits,$handshake)=@ARGV; |
warn "using $device $handshake $baudrate $databits $parity $stopbits" if $debug; |
|
$device ||= "/dev/ttyUSB0"; |
|
|
$baudrate ||= "19200"; |
|
|
$databits ||= "8"; |
|
|
$parity ||= "none"; |
|
|
$stopbits ||= "1"; |
|
|
$handshake ||= "none"; |
|
|
|
|
|
my $port=new Device::SerialPort($device) || die "new($device): $!\n"; |
|
77 |
$handshake=$port->handshake($handshake); |
$handshake=$port->handshake($handshake); |
78 |
$baudrate=$port->baudrate($baudrate); |
$baudrate=$port->baudrate($baudrate); |
79 |
$databits=$port->databits($databits); |
$databits=$port->databits($databits); |
80 |
$parity=$port->parity($parity); |
$parity=$port->parity($parity); |
81 |
$stopbits=$port->stopbits($stopbits); |
$stopbits=$port->stopbits($stopbits); |
82 |
|
|
83 |
print "## using $device $baudrate $databits $parity $stopbits\n"; |
print "## using $device $baudrate $databits $parity $stopbits debug: $debug verbose: $verbose\n"; |
84 |
|
|
85 |
# Just in case: reset our timing and buffers |
# Just in case: reset our timing and buffers |
86 |
$port->lookclear(); |
$port->lookclear(); |
93 |
|
|
94 |
# initial hand-shake with device |
# initial hand-shake with device |
95 |
|
|
96 |
cmd( 'D5 00 05 04 00 11 8C66', 'hw version?', |
cmd( 'D5 00 05 04 00 11 8C66', 'hw version', |
97 |
'D5 00 09 04 00 11 0A 05 00 02 7250', 'hw 10.5.0.2', sub { |
'D5 00 09 04 00 11 0A 05 00 02 7250', sub { |
98 |
print "hardware version ", join('.', unpack('CCCC', skip_assert(3) )), "\n"; |
print "hardware version ", join('.', unpack('CCCC', skip_assert(3) )), "\n"; |
99 |
}); |
}); |
100 |
|
|
101 |
cmd( 'D6 00 0C 13 04 01 00 02 00 03 00 04 00 AAF2','stats?', |
cmd( 'D6 00 0C 13 04 01 00 02 00 03 00 04 00 AAF2','FIXME: stats?', |
102 |
'D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778','FIXME: unimplemented', sub { assert() } ); |
'D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778', sub { assert() } ); |
103 |
|
|
104 |
# start scanning for tags |
# start scanning for tags |
105 |
|
|
106 |
cmd( 'D6 00 05 FE 00 05 FA40', "XXX scan $_", |
cmd( 'D6 00 05 FE 00 05 FA40', "scan for tags, retry $_", |
107 |
'D6 00 07 FE 00 00 05 00 C97B', 'no tag', sub { |
'D6 00 0F FE 00 00 05 ', sub { # 01 E00401003123AA26 941A # seen, serial length: 8 |
108 |
dispatch( |
my $rest = shift || die "no rest?"; |
109 |
'D6 00 0F FE 00 00 05 ',# 01 E00401003123AA26 941A # seen, serial length: 8 |
my $nr = ord( substr( $rest, 0, 1 ) ); |
110 |
sub { |
|
111 |
my $rest = shift || die "no rest?"; |
if ( ! $nr ) { |
112 |
my $nr = ord( substr( $rest, 0, 1 ) ); |
print "no tags in range\n"; |
113 |
|
update_visible_tags(); |
114 |
|
} else { |
115 |
|
|
116 |
my $tags = substr( $rest, 1 ); |
my $tags = substr( $rest, 1 ); |
117 |
|
|
118 |
my $tl = length( $tags ); |
my $tl = length( $tags ); |
119 |
die "wrong length $tl for $nr tags: ",dump( $tags ) if $tl =! $nr * 8; |
die "wrong length $tl for $nr tags: ",dump( $tags ) if $tl =! $nr * 8; |
120 |
|
|
121 |
my @tags; |
my @tags; |
122 |
push @tags, substr($tags, $_ * 8, 8) foreach ( 0 .. $nr - 1 ); |
push @tags, uc(unpack('H16', substr($tags, $_ * 8, 8))) foreach ( 0 .. $nr - 1 ); |
123 |
warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ); |
warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug; |
124 |
print "seen $nr tags: ", join(',', map { unpack('H16', $_) } @tags ) , "\n"; |
print "$nr tags in range: ", join(',', @tags ) , "\n"; |
125 |
} |
|
126 |
) } |
update_visible_tags( @tags ); |
127 |
|
|
128 |
|
} |
129 |
|
} |
130 |
) foreach ( 1 .. 100 ); |
) foreach ( 1 .. 100 ); |
131 |
|
|
|
cmd( 'D6 00 0D 02 E00401003123AA26 00 03 1CC4', 'read offset: 0 blocks: 3' ); |
|
132 |
|
|
|
# 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"; |
|
133 |
|
|
134 |
cmd( 'D6 00 0D 02 E00401003123AA26 03 04 3970', 'read offset: 3 blocks: 4' ); |
my $tags_data; |
135 |
|
my $visible_tags; |
136 |
|
|
137 |
|
sub update_visible_tags { |
138 |
|
my @tags = @_; |
139 |
|
|
140 |
|
my $last_visible_tags = $visible_tags; |
141 |
|
$visible_tags = {}; |
142 |
|
|
143 |
|
foreach my $tag ( @tags ) { |
144 |
|
if ( ! defined $last_visible_tags->{$tag} ) { |
145 |
|
read_tag( $tag ); |
146 |
|
$visible_tags->{$tag}++; |
147 |
|
} else { |
148 |
|
warn "## using cached data for $tag" if $debug; |
149 |
|
} |
150 |
|
delete $last_visible_tags->{$tag}; # leave just missing tags |
151 |
|
} |
152 |
|
|
153 |
|
foreach my $tag ( keys %$last_visible_tags ) { |
154 |
|
print "removed tag $tag with data ",dump( delete $tags_data->{$tag} ),"\n"; |
155 |
|
} |
156 |
|
|
157 |
|
warn "## update_visible_tags(",dump( @tags ),") = ",dump( $visible_tags )," removed: ",dump( $last_visible_tags ), " data: ",dump( $tags_data ) if $debug; |
158 |
|
} |
159 |
|
|
160 |
|
|
161 |
|
sub read_tag { |
162 |
|
my ( $tag ) = @_; |
163 |
|
|
164 |
|
confess "no tag?" unless $tag; |
165 |
|
|
166 |
|
return if defined $tags_data->{$tag}; |
167 |
|
|
168 |
|
print "read_tag $tag\n"; |
169 |
|
|
170 |
# D6 00 25 02 00 E00401003123AA26 04 03 00 30 30 00 00 04 00 00 00 00 00 |
cmd( |
171 |
# 05 00 00 00 00 00 06 00 00 00 00 00 B9BA |
"D6 00 0D 02 $tag 00 03 1CC4", 'read $tag offset: 0 blocks: 3', |
172 |
warn "D6 00 25 02 00 E00401003123AA26 04 03 00 39 30 31 32 04 00 33 34 35 36 |
"D6 00 0F FE 00 00 05 01 $tag 941A", sub { |
173 |
05 00 00 00 00 00 06 00 00 00 00 00 524B\n"; |
print "FIXME: tag $tag ready?\n"; |
174 |
warn "D6 00 0F FE 00 00 05 01 E00401003123AA26 941A ##### ready?\n"; |
}, |
175 |
|
"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"; |
176 |
|
my $rest = shift || die "no rest?"; |
177 |
|
warn "## DATA ", dump( $rest ) if $debug; |
178 |
|
my $tag = uc(unpack('H16',substr( $rest, 0, 8 ))); |
179 |
|
my $blocks = ord(substr($rest,8,1)); |
180 |
|
$rest = substr($rest,9); # leave just data blocks |
181 |
|
my @data; |
182 |
|
foreach my $nr ( 0 .. $blocks - 1 ) { |
183 |
|
my $block = substr( $rest, $nr * 6, 6 ); |
184 |
|
warn "## block ",as_hex( $block ) if $debug; |
185 |
|
my $ord = unpack('v',substr( $block, 0, 2 )); |
186 |
|
die "got block $ord, expected block $nr from ",dump( $block ) if $ord != $nr; |
187 |
|
my $data = substr( $block, 2 ); |
188 |
|
die "data payload should be 4 bytes" if length($data) != 4; |
189 |
|
warn sprintf "## tag %08s %02d %s |%-4s|\n", $tag, $ord, as_hex( $data ), $data; |
190 |
|
$data[ $ord ] = $data; |
191 |
|
} |
192 |
|
$tags_data->{ $tag } = join('', @data); |
193 |
|
print "DATA $tag ",dump( $tags_data ), "\n"; |
194 |
|
} |
195 |
|
); |
196 |
|
|
197 |
|
# 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 |
198 |
|
if (0) { |
199 |
|
cmd( "D6 00 0D 02 $tag 03 04 3970", 'read offset: 3 blocks: 4' ); |
200 |
|
|
201 |
|
# D6 00 25 02 00 $tag 04 03 00 30 30 00 00 04 00 00 00 00 00 |
202 |
|
# $tag 05 00 00 00 00 00 06 00 00 00 00 00 B9BA |
203 |
|
warn "?? D6 00 25 02 00 $tag 04 03 00 39 30 31 32 04 00 ....\n"; |
204 |
|
} |
205 |
|
warn "?? D6 00 0F FE 00 00 05 01 $tag 941A ##### ready?\n"; |
206 |
|
|
207 |
|
} |
208 |
|
|
209 |
|
exit; |
210 |
|
|
211 |
for ( 1 .. 3 ) { |
for ( 1 .. 3 ) { |
212 |
|
|
238 |
{ |
{ |
239 |
my $str=shift; |
my $str=shift; |
240 |
my $count = $port->write($str); |
my $count = $port->write($str); |
241 |
print "#> ", as_hex( $str ), "\t[$count]\n"; |
print "#> ", as_hex( $str ), "\t[$count]\n" if $debug; |
242 |
} |
} |
243 |
|
|
244 |
sub as_hex { |
sub as_hex { |
246 |
foreach my $str ( @_ ) { |
foreach my $str ( @_ ) { |
247 |
my $hex = unpack( 'H*', $str ); |
my $hex = unpack( 'H*', $str ); |
248 |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
249 |
|
$hex =~ s/\s+$//; |
250 |
push @out, $hex; |
push @out, $hex; |
251 |
} |
} |
252 |
return join(' ', @out); |
return join(' | ', @out); |
253 |
} |
} |
254 |
|
|
255 |
sub read_bytes { |
sub read_bytes { |
286 |
return substr( $assert->{payload}, $to ); |
return substr( $assert->{payload}, $to ); |
287 |
} |
} |
288 |
|
|
289 |
our $dispatch; |
use Digest::CRC; |
290 |
sub dispatch { |
|
291 |
my ( $pattern, $coderef ) = @_; |
sub crcccitt { |
292 |
my $patt = substr( str2bytes($pattern), 3 ); # just payload |
my $bytes = shift; |
293 |
my $l = length($patt); |
my $crc = Digest::CRC->new( |
294 |
my $p = substr( $assert->{payload}, 0, $l ); |
# midified CCITT to xor with 0xffff instead of 0x0000 |
295 |
warn "## dispatch pattern $pattern [$l] ",dump( $patt, $p ) if $debug; |
width => 16, init => 0xffff, xorout => 0xffff, refout => 0, poly => 0x1021, refin => 0, |
296 |
|
) or die $!; |
297 |
if ( $assert->{payload} eq $assert->{expect} ) { |
$crc->add( $bytes ); |
298 |
warn "## no dispatch, payload expected" if $debug; |
pack('n', $crc->digest); |
299 |
} elsif ( $p eq $patt ) { |
} |
300 |
# if matched call with rest of payload |
|
301 |
$coderef->( substr( $assert->{payload}, $l ) ); |
# my $checksum = checksum( $bytes ); |
302 |
} else { |
# my $checksum = checksum( $bytes, $original_checksum ); |
303 |
warn "## dispatch ignored" if $debug; |
sub checksum { |
304 |
|
my ( $bytes, $checksum ) = @_; |
305 |
|
|
306 |
|
my $xor = crcccitt( substr($bytes,1) ); # skip D6 |
307 |
|
warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug; |
308 |
|
|
309 |
|
my $len = ord(substr($bytes,2,1)); |
310 |
|
my $len_real = length($bytes) - 1; |
311 |
|
|
312 |
|
if ( $len_real != $len ) { |
313 |
|
print "length wrong: $len_real != $len\n"; |
314 |
|
$bytes = substr($bytes,0,2) . chr($len_real) . substr($bytes,4); |
315 |
} |
} |
316 |
|
|
317 |
|
if ( defined $checksum && $xor ne $checksum ) { |
318 |
|
print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n"; |
319 |
|
return $bytes . $xor; |
320 |
|
} |
321 |
|
return $bytes . $checksum; |
322 |
} |
} |
323 |
|
|
324 |
sub readchunk { |
our $dispatch; |
|
my ( $parser ) = @_; |
|
325 |
|
|
326 |
|
sub readchunk { |
327 |
sleep 1; # FIXME remove |
sleep 1; # FIXME remove |
328 |
|
|
329 |
# read header of packet |
# read header of packet |
331 |
my $length = read_bytes( 1, 'length' ); |
my $length = read_bytes( 1, 'length' ); |
332 |
my $len = ord($length); |
my $len = ord($length); |
333 |
my $data = read_bytes( $len, 'data' ); |
my $data = read_bytes( $len, 'data' ); |
|
my ( $cmd ) = unpack('C', $data ); |
|
334 |
|
|
335 |
my $payload = substr( $data, 0, -2 ); |
my $payload = substr( $data, 0, -2 ); |
336 |
my $payload_len = length($data); |
my $payload_len = length($data); |
337 |
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
338 |
|
|
339 |
my $checksum = substr( $data, -2, 2 ); |
my $checksum = substr( $data, -2, 2 ); |
340 |
# FIXME check checksum |
checksum( $header . $length . $payload , $checksum ); |
341 |
|
|
342 |
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; |
343 |
|
|
344 |
$assert->{len} = $len; |
$assert->{len} = $len; |
345 |
$assert->{payload} = $payload; |
$assert->{payload} = $payload; |
|
$assert->{checksum} = $checksum; |
|
346 |
|
|
347 |
$parser->( $len, $payload, $checksum ) if $parser && ref($parser) eq 'CODE'; |
my $full = $header . $length . $data; # full |
348 |
|
# find longest match for incomming data |
349 |
|
my ($to) = grep { |
350 |
|
my $match = substr($payload,0,length($_)); |
351 |
|
m/^\Q$match\E/ |
352 |
|
} sort { length($a) <=> length($b) } keys %$dispatch; |
353 |
|
warn "?? payload dispatch to ",dump( $payload, $dispatch, $to ) if $debug; |
354 |
|
|
355 |
|
if ( defined $to ) { |
356 |
|
my $rest = substr( $payload, length($to) ); |
357 |
|
warn "## DISPATCH payload to with rest", dump( $payload, $to, $rest ) if $debug; |
358 |
|
$dispatch->{ $to }->( $rest ); |
359 |
|
} else { |
360 |
|
print "NO DISPATCH for ",dump( $full ),"\n"; |
361 |
|
} |
362 |
|
|
363 |
return $data; |
return $data; |
364 |
} |
} |
366 |
sub str2bytes { |
sub str2bytes { |
367 |
my $str = shift || confess "no str?"; |
my $str = shift || confess "no str?"; |
368 |
my $b = $str; |
my $b = $str; |
369 |
$b =~ s/\s+(\S\S)(\S\S)+\s*/ $1 $2/; # fix checksum |
$b =~ s/\s+//g; |
370 |
$b =~ s/\s+$//; |
$b =~ s/(..)/\\x$1/g; |
371 |
$b =~ s/\s+/\\x/g; |
$b = "\"$b\""; |
|
$b = '"\x' . $b . '"'; |
|
372 |
my $bytes = eval $b; |
my $bytes = eval $b; |
373 |
die $@ if $@; |
die $@ if $@; |
374 |
warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug; |
warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug; |
376 |
} |
} |
377 |
|
|
378 |
sub cmd { |
sub cmd { |
379 |
my ( $cmd, $cmd_desc, $expect, $expect_desc, $coderef ) = @_; |
my $cmd = shift || confess "no cmd?"; |
380 |
|
my $cmd_desc = shift || confess "no description?"; |
381 |
|
my @expect = @_; |
382 |
|
|
383 |
my $bytes = str2bytes( $cmd ); |
my $bytes = str2bytes( $cmd ); |
384 |
|
|
385 |
warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n"; |
# fix checksum if needed |
386 |
|
$bytes = checksum( substr( $bytes, 0, -2 ), substr( $bytes, -2, 2 ) ); |
387 |
|
|
388 |
|
warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n" if $verbose; |
389 |
$assert->{send} = $cmd; |
$assert->{send} = $cmd; |
390 |
writechunk( $bytes ); |
writechunk( $bytes ); |
391 |
|
|
392 |
if ( $expect ) { |
while ( @expect ) { |
393 |
warn "?? $expect", $expect_desc ? "\t## $expect_desc" : '', "\n"; |
my $pattern = str2bytes( shift @expect ) || confess "no pattern?"; |
394 |
$assert->{expect} = substr(str2bytes($expect), 3, -2); # just expected payload |
my $coderef = shift @expect || confess "no coderef?"; |
395 |
readchunk( $coderef ); |
confess "not coderef" unless ref $coderef eq 'CODE'; |
396 |
|
|
397 |
|
next if defined $dispatch->{ $pattern }; |
398 |
|
|
399 |
|
$dispatch->{ substr($pattern,3) } = $coderef; |
400 |
|
warn "++ dispatch ", as_hex($pattern) ,dump( $dispatch ) if $debug; |
401 |
} |
} |
402 |
|
|
403 |
|
readchunk; |
404 |
} |
} |
405 |
|
|