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 |
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my $debug = 0; |
12 |
|
|
13 |
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my $device = "/dev/ttyUSB0"; |
14 |
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my $baudrate = "19200"; |
15 |
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my $databits = "8"; |
16 |
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my $parity = "none"; |
17 |
|
my $stopbits = "1"; |
18 |
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my $handshake = "none"; |
19 |
|
|
20 |
my $response = { |
my $response = { |
21 |
'd500090400110a0500027250' => 'version?', |
'd500090400110a0500027250' => 'version?', |
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 |
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'parity=s' => \$parity, |
38 |
|
'stopbits=i' => \$stopbits, |
39 |
|
'handshake=s' => \$handshake, |
40 |
|
) or die $!; |
41 |
|
|
42 |
=head1 NAME |
=head1 NAME |
43 |
|
|
44 |
3m-810 - support for 3M 810 RFID reader |
3m-810 - support for 3M 810 RFID reader |
45 |
|
|
46 |
=head1 SYNOPSIS |
=head1 SYNOPSIS |
47 |
|
|
48 |
3m-810.pl [DEVICE [BAUD [DATA [PARITY [STOP [FLOW]]]]]] |
3m-810.pl --device /dev/ttyUSB0 |
49 |
|
|
50 |
=head1 DESCRIPTION |
=head1 DESCRIPTION |
51 |
|
|
57 |
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|
58 |
L<perl(1)> |
L<perl(1)> |
59 |
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|
60 |
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L<http://stackoverflow.com/questions/149617/how-could-i-guess-a-checksum-algorithm> |
61 |
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|
62 |
=head1 AUTHOR |
=head1 AUTHOR |
63 |
|
|
64 |
Dobrica Pavlinusic <dpavlin@rot13.org> L<http://www.rot13.org/~dpavlin/> |
Dobrica Pavlinusic <dpavlin@rot13.org> L<http://www.rot13.org/~dpavlin/> |
70 |
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|
71 |
=cut |
=cut |
72 |
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|
73 |
# your serial port. |
my $tags_data; |
74 |
my ($device,$baudrate,$databits,$parity,$stopbits,$handshake)=@ARGV; |
my $visible_tags; |
|
$device ||= "/dev/ttyUSB0"; |
|
|
$baudrate ||= "19200"; |
|
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$databits ||= "8"; |
|
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$parity ||= "none"; |
|
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$stopbits ||= "1"; |
|
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$handshake ||= "none"; |
|
75 |
|
|
76 |
my $port=new Device::SerialPort($device) || die "new($device): $!\n"; |
my $port=new Device::SerialPort($device) || die "can't open serial port $device: $!\n"; |
77 |
|
warn "using $device $handshake $baudrate $databits $parity $stopbits" if $debug; |
78 |
$handshake=$port->handshake($handshake); |
$handshake=$port->handshake($handshake); |
79 |
$baudrate=$port->baudrate($baudrate); |
$baudrate=$port->baudrate($baudrate); |
80 |
$databits=$port->databits($databits); |
$databits=$port->databits($databits); |
92 |
#$port->stty_inpck(1); |
#$port->stty_inpck(1); |
93 |
#$port->stty_istrip(1); |
#$port->stty_istrip(1); |
94 |
|
|
95 |
cmd( 'D5 00 05 04 00 11 8C66', 'hw version?', |
# initial hand-shake with device |
96 |
'D5 00 09 04 00 11 0A 05 00 02 7250', 'hw 10.5.0.2', sub { |
|
97 |
my ( $len, $payload, $checksum ) = @_; |
cmd( 'D5 00 05 04 00 11 8C66', 'hw version', |
98 |
assert( 0, 3 ); |
'D5 00 09 04 00 11 0A 05 00 02 7250', sub { |
99 |
print "hardware version ", join('.', unpack('CCCC', substr($payload,3,4))), "\n"; |
print "hardware version ", join('.', unpack('CCCC', skip_assert(3) )), "\n"; |
100 |
}); |
}); |
101 |
|
|
102 |
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?', |
103 |
# D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778 |
'D6 00 0C 13 00 02 01 01 03 02 02 03 00 E778', sub { assert() } ); |
104 |
|
|
105 |
|
# start scanning for tags |
106 |
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|
107 |
cmd( 'D6 00 05 FE 00 05 FA40', "XXX scan $_", |
cmd( 'D6 00 05 FE 00 05 FA40', "scan for tags, retry $_", |
108 |
'D6 00 07 FE 00 00 05 00 C97B -- no tag' ) foreach ( 1 .. 10 ); |
'D6 00 07 FE 00 00 05 00 C97B', sub { |
109 |
|
assert(); |
110 |
|
print "no tag in range\n"; |
111 |
|
|
112 |
|
}, |
113 |
|
'D6 00 0F FE 00 00 05 ', sub { # 01 E00401003123AA26 941A # seen, serial length: 8 |
114 |
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my $rest = shift || die "no rest?"; |
115 |
|
my $nr = ord( substr( $rest, 0, 1 ) ); |
116 |
|
|
117 |
|
if ( ! $nr ) { |
118 |
|
print "no tags in range\n"; |
119 |
|
} else { |
120 |
|
|
121 |
|
my $tags = substr( $rest, 1 ); |
122 |
|
|
123 |
|
my $tl = length( $tags ); |
124 |
|
die "wrong length $tl for $nr tags: ",dump( $tags ) if $tl =! $nr * 8; |
125 |
|
|
126 |
|
my @tags; |
127 |
|
push @tags, uc(unpack('H16', substr($tags, $_ * 8, 8))) foreach ( 0 .. $nr - 1 ); |
128 |
|
warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug; |
129 |
|
print "seen $nr tags: ", join(',', @tags ) , "\n"; |
130 |
|
|
131 |
|
my $removed_tags = $visible_tags; |
132 |
|
$visible_tags = {}; |
133 |
|
|
134 |
|
foreach my $tag ( @tags ) { |
135 |
|
next if $visible_tags->{$tag}++; |
136 |
|
read_tag( $tag ); |
137 |
|
if ( delete $removed_tags->{$tag} ) { |
138 |
|
print "removed tag $tag\n"; |
139 |
|
} |
140 |
|
} |
141 |
|
|
142 |
|
} |
143 |
|
} |
144 |
|
) foreach ( 1 .. 100 ); |
145 |
|
|
146 |
# D6 00 0F FE 00 00 05 01 E00401003123AA26 941A # seen |
sub read_tag { |
147 |
|
my ( $tag ) = @_; |
148 |
|
|
149 |
cmd( 'D6 00 0D 02 E00401003123AA26 00 03 1CC4', 'read offset: 0 blocks: 3' ); |
print "read_tag $tag\n"; |
150 |
|
|
151 |
# 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 |
cmd( |
152 |
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"; |
"D6 00 0D 02 $tag 00 03 1CC4", 'read $tag offset: 0 blocks: 3', |
153 |
|
"D6 00 0F FE 00 00 05 01 $tag 941A", sub { |
154 |
|
print "FIXME: tag $tag ready?\n"; |
155 |
|
}, |
156 |
|
"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"; |
157 |
|
my $rest = shift || die "no rest?"; |
158 |
|
warn "## DATA ", dump( $rest ) if $debug; |
159 |
|
my $tag = uc(unpack('H16',substr( $rest, 0, 8 ))); |
160 |
|
my $blocks = ord(substr($rest,8,1)); |
161 |
|
$rest = substr($rest,9); # leave just data blocks |
162 |
|
my @data; |
163 |
|
foreach my $nr ( 0 .. $blocks - 1 ) { |
164 |
|
my $block = substr( $rest, $nr * 6, 6 ); |
165 |
|
warn "## block ",as_hex( $block ) if $debug; |
166 |
|
my $ord = unpack('v',substr( $block, 0, 2 )); |
167 |
|
die "got block $ord, expected block $nr from ",dump( $block ) if $ord != $nr; |
168 |
|
my $data = substr( $block, 2 ); |
169 |
|
die "data payload should be 4 bytes" if length($data) != 4; |
170 |
|
warn sprintf "## tag %08s %02d %s |%-4s|\n", $tag, $ord, as_hex( $data ), $data; |
171 |
|
$data[ $ord ] = $data; |
172 |
|
} |
173 |
|
$tags_data->{ $tag } = join('', @data); |
174 |
|
print "DATA $tag ",dump( $tags_data ), "\n"; |
175 |
|
} |
176 |
|
); |
177 |
|
|
178 |
|
# 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 |
179 |
|
if (0) { |
180 |
|
cmd( "D6 00 0D 02 $tag 03 04 3970", 'read offset: 3 blocks: 4' ); |
181 |
|
|
182 |
|
# D6 00 25 02 00 $tag 04 03 00 30 30 00 00 04 00 00 00 00 00 |
183 |
|
# $tag 05 00 00 00 00 00 06 00 00 00 00 00 B9BA |
184 |
|
warn "?? D6 00 25 02 00 $tag 04 03 00 39 30 31 32 04 00 ....\n"; |
185 |
|
} |
186 |
|
warn "?? D6 00 0F FE 00 00 05 01 $tag 941A ##### ready?\n"; |
187 |
|
|
188 |
cmd( 'D6 00 0D 02 E00401003123AA26 03 04 3970', 'read offset: 3 blocks: 4' ); |
} |
189 |
|
|
190 |
# D6 00 25 02 00 E00401003123AA26 04 03 00 30 30 00 00 04 00 00 00 00 00 |
exit; |
|
# 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"; |
|
191 |
|
|
192 |
for ( 1 .. 3 ) { |
for ( 1 .. 3 ) { |
193 |
|
|
219 |
{ |
{ |
220 |
my $str=shift; |
my $str=shift; |
221 |
my $count = $port->write($str); |
my $count = $port->write($str); |
222 |
print ">> ", as_hex( $str ), "\t[$count]\n"; |
print "#> ", as_hex( $str ), "\t[$count]\n" if $debug; |
223 |
} |
} |
224 |
|
|
225 |
sub as_hex { |
sub as_hex { |
227 |
foreach my $str ( @_ ) { |
foreach my $str ( @_ ) { |
228 |
my $hex = unpack( 'H*', $str ); |
my $hex = unpack( 'H*', $str ); |
229 |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
$hex =~ s/(..)/$1 /g if length( $str ) > 2; |
230 |
|
$hex =~ s/\s+$//; |
231 |
push @out, $hex; |
push @out, $hex; |
232 |
} |
} |
233 |
return join(' ', @out); |
return join(' | ', @out); |
234 |
} |
} |
235 |
|
|
236 |
sub read_bytes { |
sub read_bytes { |
242 |
$data .= $b; |
$data .= $b; |
243 |
} |
} |
244 |
$desc ||= '?'; |
$desc ||= '?'; |
245 |
warn "#< ", as_hex($data), "\t$desc\n"; |
warn "#< ", as_hex($data), "\t$desc\n" if $debug; |
246 |
return $data; |
return $data; |
247 |
} |
} |
248 |
|
|
249 |
my $assert; |
our $assert; |
250 |
|
|
251 |
|
# my $rest = skip_assert( 3 ); |
252 |
|
sub skip_assert { |
253 |
|
assert( 0, shift ); |
254 |
|
} |
255 |
|
|
256 |
sub assert { |
sub assert { |
257 |
my ( $from, $to ) = @_; |
my ( $from, $to ) = @_; |
258 |
|
|
259 |
|
$from ||= 0; |
260 |
|
$to = length( $assert->{expect} ) if ! defined $to; |
261 |
|
|
262 |
my $p = substr( $assert->{payload}, $from, $to ); |
my $p = substr( $assert->{payload}, $from, $to ); |
263 |
my $e = substr( $assert->{expect}, $from, $to ); |
my $e = substr( $assert->{expect}, $from, $to ); |
264 |
warn "EXPECTED ",as_hex($e), " GOT ", as_hex($p), " [$from-$to] in ",dump( $assert ), "\n" if $e ne $p; |
warn "EXPECTED ",as_hex($e), " GOT ", as_hex($p), " [$from-$to] in ",dump( $assert ), "\n" if $e ne $p; |
265 |
|
|
266 |
|
# return the rest |
267 |
|
return substr( $assert->{payload}, $to ); |
268 |
} |
} |
269 |
|
|
270 |
sub readchunk { |
use Digest::CRC; |
|
my ( $parser ) = @_; |
|
271 |
|
|
272 |
|
sub crcccitt { |
273 |
|
my $bytes = shift; |
274 |
|
my $crc = Digest::CRC->new( |
275 |
|
# midified CCITT to xor with 0xffff instead of 0x0000 |
276 |
|
width => 16, init => 0xffff, xorout => 0xffff, refout => 0, poly => 0x1021, refin => 0, |
277 |
|
) or die $!; |
278 |
|
$crc->add( $bytes ); |
279 |
|
pack('n', $crc->digest); |
280 |
|
} |
281 |
|
|
282 |
|
# my $checksum = checksum( $bytes ); |
283 |
|
# my $checksum = checksum( $bytes, $original_checksum ); |
284 |
|
sub checksum { |
285 |
|
my ( $bytes, $checksum ) = @_; |
286 |
|
|
287 |
|
my $xor = crcccitt( substr($bytes,1) ); # skip D6 |
288 |
|
warn "## checksum ",dump( $bytes, $xor, $checksum ) if $debug; |
289 |
|
|
290 |
|
my $len = ord(substr($bytes,2,1)); |
291 |
|
my $len_real = length($bytes) - 1; |
292 |
|
|
293 |
|
if ( $len_real != $len ) { |
294 |
|
print "length wrong: $len_real != $len\n"; |
295 |
|
$bytes = substr($bytes,0,2) . chr($len_real) . substr($bytes,4); |
296 |
|
} |
297 |
|
|
298 |
|
if ( defined $checksum && $xor ne $checksum ) { |
299 |
|
print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n"; |
300 |
|
return $bytes . $xor; |
301 |
|
} |
302 |
|
return $bytes . $checksum; |
303 |
|
} |
304 |
|
|
305 |
|
our $dispatch; |
306 |
|
|
307 |
|
sub readchunk { |
308 |
sleep 1; # FIXME remove |
sleep 1; # FIXME remove |
309 |
|
|
310 |
# read header of packet |
# read header of packet |
312 |
my $length = read_bytes( 1, 'length' ); |
my $length = read_bytes( 1, 'length' ); |
313 |
my $len = ord($length); |
my $len = ord($length); |
314 |
my $data = read_bytes( $len, 'data' ); |
my $data = read_bytes( $len, 'data' ); |
|
my ( $cmd ) = unpack('C', $data ); |
|
315 |
|
|
316 |
my $payload = substr( $data, 0, -2 ); |
my $payload = substr( $data, 0, -2 ); |
317 |
my $payload_len = length($data); |
my $payload_len = length($data); |
318 |
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
warn "## payload too short $payload_len != $len\n" if $payload_len != $len; |
319 |
|
|
320 |
my $checksum = substr( $data, -2, 2 ); |
my $checksum = substr( $data, -2, 2 ); |
321 |
# FIXME check checksum |
checksum( $header . $length . $payload , $checksum ); |
322 |
|
|
323 |
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"; |
324 |
|
|
325 |
$assert->{len} = $len; |
$assert->{len} = $len; |
326 |
$assert->{payload} = $payload; |
$assert->{payload} = $payload; |
|
$assert->{checksum} = $checksum; |
|
327 |
|
|
328 |
$parser->( $len, $payload, $checksum ) if $parser && ref($parser) eq 'CODE'; |
my $full = $header . $length . $data; # full |
329 |
|
# find longest match for incomming data |
330 |
|
my ($to) = grep { |
331 |
|
my $match = substr($payload,0,length($_)); |
332 |
|
m/^\Q$match\E/ |
333 |
|
} sort { length($a) <=> length($b) } keys %$dispatch; |
334 |
|
warn "?? payload dispatch to ",dump( $payload, $dispatch, $to ) if $debug; |
335 |
|
|
336 |
|
if ( defined $to ) { |
337 |
|
my $rest = substr( $payload, length($to) ); |
338 |
|
warn "## DISPATCH payload to with rest", dump( $payload, $to, $rest ) if $debug; |
339 |
|
$dispatch->{ $to }->( $rest ); |
340 |
|
} else { |
341 |
|
print "NO DISPATCH for ",dump( $full ),"\n"; |
342 |
|
} |
343 |
|
|
344 |
return $data; |
return $data; |
345 |
} |
} |
346 |
|
|
347 |
sub str2bytes { |
sub str2bytes { |
348 |
my $str = shift || confess "no str?"; |
my $str = shift || confess "no str?"; |
349 |
$str =~ s/\s+(\S\S)(\S\S)+\s*/ $1 $2/; # fix checksum |
my $b = $str; |
350 |
$str =~ s/\s+/\\x/g; |
$b =~ s/\s+//g; |
351 |
$str = '"\x' . $str . '"'; |
$b =~ s/(..)/\\x$1/g; |
352 |
my $bytes = eval $str; |
$b = "\"$b\""; |
353 |
|
my $bytes = eval $b; |
354 |
die $@ if $@; |
die $@ if $@; |
355 |
|
warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug; |
356 |
return $bytes; |
return $bytes; |
357 |
} |
} |
358 |
|
|
359 |
sub cmd { |
sub cmd { |
360 |
my ( $cmd, $cmd_desc, $expect, $expect_desc, $coderef ) = @_; |
my $cmd = shift || confess "no cmd?"; |
361 |
|
my $cmd_desc = shift || confess "no description?"; |
362 |
|
my @expect = @_; |
363 |
|
|
364 |
my $bytes = str2bytes( $cmd ); |
my $bytes = str2bytes( $cmd ); |
365 |
|
|
366 |
|
# fix checksum if needed |
367 |
|
$bytes = checksum( substr( $bytes, 0, -2 ), substr( $bytes, -2, 2 ) ); |
368 |
|
|
369 |
warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n"; |
warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n"; |
370 |
$assert->{send} = $cmd; |
$assert->{send} = $cmd; |
371 |
writechunk( $bytes ); |
writechunk( $bytes ); |
372 |
|
|
373 |
if ( $expect ) { |
while ( @expect ) { |
374 |
warn "?? $expect", $expect_desc ? "\t## $expect_desc" : '', "\n"; |
my $pattern = str2bytes( shift @expect ) || confess "no pattern?"; |
375 |
$assert->{expect} = substr(str2bytes($expect), 3, -2); # just expected payload |
my $coderef = shift @expect || confess "no coderef?"; |
376 |
readchunk( $coderef ); |
confess "not coderef" unless ref $coderef eq 'CODE'; |
377 |
|
|
378 |
|
next if defined $dispatch->{ $pattern }; |
379 |
|
|
380 |
|
$dispatch->{ substr($pattern,3) } = $coderef; |
381 |
|
warn "++ dispatch ", as_hex($pattern) ,dump( $dispatch ) if $debug; |
382 |
} |
} |
383 |
|
|
384 |
|
readchunk; |
385 |
} |
} |
386 |
|
|