--- 3m-810.pl 2008/09/28 12:57:32 1 +++ 3m-810.pl 2008/09/28 22:15:29 10 @@ -5,6 +5,9 @@ use warnings; use Data::Dump qw/dump/; +use Carp qw/confess/; + +my $debug = 0; my $response = { 'd500090400110a0500027250' => 'version?', @@ -74,29 +77,38 @@ #$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(); -} - -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 +# initial hand-shake with device -cmd( 'D6 00 05 FE 00 05 FA40', "XXX scan $_", - 'D6 00 07 FE 00 00 05 00 C97B -- no tag' ) foreach ( 1 .. 10 ); +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', sub { + print "hardware version ", join('.', unpack('CCCC', skip_assert(3) )), "\n"; +}); + +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','FIXME: unimplemented', sub { assert() } ); + +# start scanning for tags + +cmd( 'D6 00 05 FE 00 05 FA40', "XXX scan $_", + 'D6 00 07 FE 00 00 05 00 C97B', 'no tag', sub { +dispatch( + 'D6 00 0F FE 00 00 05 ',# 01 E00401003123AA26 941A # seen, serial length: 8 + sub { + my $rest = shift || die "no rest?"; + my $nr = ord( substr( $rest, 0, 1 ) ); + my $tags = substr( $rest, 1 ); + + my $tl = length( $tags ); + die "wrong length $tl for $nr tags: ",dump( $tags ) if $tl =! $nr * 8; + + my @tags; + push @tags, substr($tags, $_ * 8, 8) foreach ( 0 .. $nr - 1 ); + warn "## tags ",as_hex($tags), " [$tl] = ",dump( $tags ) if $debug; + print "seen $nr tags: ", join(',', map { unpack('H16', $_) } @tags ) , "\n"; + } +) } -# D6 00 0F FE 00 00 05 01 E00401003123AA26 941A # seen +) foreach ( 1 .. 100 ); cmd( 'D6 00 0D 02 E00401003123AA26 00 03 1CC4', 'read offset: 0 blocks: 3' ); @@ -140,19 +152,19 @@ sub writechunk { my $str=shift; - my $count = $port->write($str); - print ">> ", as_hex( $str ), "\t[$count]\n"; + print "#> ", as_hex( $str ), "\t[$count]\n"; } 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 +176,114 @@ $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 ); +} + +our $dispatch; +sub dispatch { + my ( $pattern, $coderef ) = @_; + my $patt = substr( str2bytes($pattern), 3 ); # just payload + my $l = length($patt); + my $p = substr( $assert->{payload}, 0, $l ); + warn "## dispatch pattern $pattern [$l] ",dump( $patt, $p ) if $debug; + + if ( $assert->{payload} eq $assert->{expect} ) { + warn "## no dispatch, payload expected" if $debug; + } elsif ( $p eq $patt ) { + # if matched call with rest of payload + $coderef->( substr( $assert->{payload}, $l ) ); + } else { + warn "## dispatch ignored" if $debug; + } +} + +# my $checksum = checksum( $bytes ); +# my $checksum = checksum( $bytes, $original_checksum ); +sub checksum { + my ( $bytes, $checksum ) = @_; + + my $xor = $checksum; # FIXME + + if ( defined $checksum && $xor ne $checksum ) { + print "checksum doesn't match: ", as_hex($xor), " != ", as_hex($checksum), " data: ", as_hex($bytes), "\n"; + } +} + sub readchunk { + my ( $parser ) = @_; + + 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"; + + $assert->{len} = $len; + $assert->{payload} = $payload; + + $parser->( $len, $payload ) if $parser && ref($parser) eq 'CODE'; + + return $data; +} + +sub str2bytes { + my $str = shift || confess "no str?"; + my $b = $str; + $b =~ s/\s+(\S\S)(\S\S)+\s*/ $1 $2/; # fix checksum + $b =~ s/\s+$//; + $b =~ s/\s+/\\x/g; + $b = '"\x' . $b . '"'; + my $bytes = eval $b; + die $@ if $@; + warn "## str2bytes( $str ) => $b => ",as_hex($bytes) if $debug; + return $bytes; +} - sleep 1; +sub cmd { + my ( $cmd, $cmd_desc, $expect, $expect_desc, $coderef ) = @_; + my $bytes = str2bytes( $cmd ); + + warn ">> ", as_hex( $bytes ), "\t## $cmd_desc\n"; + $assert->{send} = $cmd; + writechunk( $bytes ); + + if ( $expect ) { + warn "?? $expect", $expect_desc ? "\t## $expect_desc" : '', "\n"; + $assert->{expect} = substr(str2bytes($expect), 3, -2); # just expected payload + readchunk( $coderef ); + } }