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git://projects.qi-hardware.com/ben-blinkenlights.git
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b4530ffc4d
For that purpose, we reset the mapping each time a new set of definitions is encountered.
126 lines
2.3 KiB
Perl
Executable File
126 lines
2.3 KiB
Perl
Executable File
#!/usr/bin/perl
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$PDDAT = 0x10010310;
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$PDDATS = 0x10010314;
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$PDDATC = 0x10010318;
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$PDFUNC = 0x10010348;
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$PDDIR = 0x10010360;
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$PDDIRS = 0x10010364;
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$PDDIRC = 0x10010368;
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$bit{"DAT2"} = 12;
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$bit{"DAT3"} = 13;
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$bit{"CMD"} = 8;
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$bit{"VDD"} = 2;
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$bit{"CLK"} = 9;
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$bit{"DAT0"} = 10;
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$bit{"DAT1"} = 11;
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sub poke
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{
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local ($a, $v) = @_;
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return unless $v;
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$c = sprintf("ssh jlime poke 0x%0x 0x%0x", $a, $v & $mask);
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#print STDERR "$c\n";
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system($c);
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}
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sub peek
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{
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local ($a) = @_;
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$c = sprintf("ssh jlime poke 0x%x", $a);
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#print STDERR "$c\n";
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return hex(`$c`);
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}
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$mask = 0;
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for (values %bit) {
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$mask |= 1 << $_;
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}
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&poke($PDFUNC, $mask);
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$dat = 1 << $bit{"VDD"};
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$dir = $dat;
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&poke($PDDATS, $dat);
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&poke($PDDATC, $mask ^ $dat);
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&poke($PDDIRS, $dir);
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&poke($PDDIRC, $mask ^ $dir);
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while (<>) {
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print STDERR;
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chop;
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s/#.*//;
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next if /^\s*$/;
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if (/^\S+,(\S+,)*\S+/) {
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@pos = ();
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for (split /,/) {
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die "unknown bit \"$_\"" unless defined $bit{$_};
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push(@pos, $_);
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}
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} elsif (/^(\S+)=(\S+)\s*/) {
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die "unknown bit \"$2\"" unless defined $bit{$2};
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die "bit \"$1\" is already defined" if defined $bit{$1};
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$bit{$1} = $bit{$2};
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} elsif (/^echo\s+/) {
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print "$'\n";
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} elsif (/^show\s*$/) {
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$tdir = &peek($PDDIR);
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$tdat = &peek($PDDAT);
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for (@pos) {
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$v = 1 << $bit{$_};
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print "$_($bit{$_})=",
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$tdir & $v ? $tdat & $v ? "1" : "0" : "Z", " ";
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}
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print "\n";
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} elsif (/^wait\s+([01-]+)\s*$/) {
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$m = 0;
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$c = 0;
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@p = @pos;
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$s = $1;
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while (length $s) {
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die "out of bits" unless @p;
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$v = 1 << $bit[shift @p];
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if ($s =~ /^0/) {
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$m |= $v;
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} elsif ($s =~ /^1/) {
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$m |= $v;
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$c |= $v;
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}
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$s = substr($s, 1);
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}
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# @@@ to do
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} elsif (/^sleep\s+(\d+|\d*\.\d*)\s*$/) {
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select(undef, undef, undef, $1);
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} elsif (/^([-01zZ]+)\s*$/) {
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@p = @pos;
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($tdir, $tdat) = ($dir, $dat);
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$s = $1;
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while (length $s) {
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die "out of bits" unless @p;
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$v = 1 << $bit{shift @p};
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if ($s =~ /^0/) {
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$tdir |= $v;
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$tdat &= ~$v;
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} elsif ($s =~ /^1/) {
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$tdir |= $v;
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$tdat |= $v;
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} elsif ($s =~ /^[zZ]/) {
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$tdir &= ~$v;
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}
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$s = substr($s, 1);
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}
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&poke($PDDATS, $tdat & ~$dat);
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&poke($PDDATC, ~$tdat & $dat);
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&poke($PDDIRS, $tdir & ~$dir);
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&poke($PDDIRC, ~$tdir & $dir);
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($dir, $dat) = ($tdir, $tdat);
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} else {
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die "unrecognized command \"$_\"";
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}
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}
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