287 lines
8.3 KiB
Perl
287 lines
8.3 KiB
Perl
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#!/usr/bin/perl -w
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my $NAME = $0;
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my $VERSION = '0.01';
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my $DATE = '2009-09-04';
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my $AUTHOR = "Ward Vandewege <ward\@jhvc.com>";
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my $COPYRIGHT = "2009";
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my $LICENSE = "GPL v3 - http://www.fsf.org/licenses/gpl.txt";
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my $URL = "http://coreboot.org";
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my $DEBUG = 0;
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use strict;
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# Run the bkdg for k8 through pdftotext first (from the poppler package)
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my @registers = ();
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my $raw_register = '';
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my $name = '';
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my $description = '';
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my $step = 0;
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my $oldstep = 0;
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my $previous_res = 0;
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my $previous_start = 0;
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my $previous_stop = 0;
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my $strip_empties = 0;
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my $previous_bits = '';
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our %info;
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my %typos;
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$typos{'CkeDreStrength'} = 'CkeDrvStrength';
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while (<>) {
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my $line = $_;
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chomp($line);
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foreach my $k (keys %typos) {
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$line =~ s/$k/$typos{$k}/;
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}
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# Make sure we do not include headers in our output
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if (($line =~ /^Chapter 4/) || ($line =~ /Chapter 4$/)) {
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$oldstep = $step;
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$step = 99;
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next;
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}
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if ($step == 99) { # header
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if ($line =~ /Processors$/) {
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$step = $oldstep;
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$strip_empties = 1;
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}
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next;
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}
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if ($strip_empties) {
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# Headers are followed by two blank lines. Strip them.
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if ($line =~ /^\s*$/) {
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next;
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} else {
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$strip_empties = 0;
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}
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}
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if (($step % 6 == 0) && ($line =~ /^\d+\.\d+\.\d+\s+(.*)$/)) {
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$step = 1;
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next;
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}
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if ($step == 1) {
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$description = "$line\n";
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$step = 2;
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next;
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}
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#print STDERR "STEP: $step\n";
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#print STDERR "$line\n";
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if ((($step == 0) || ($step == 6) || ($step == 2)) && ($line =~ /^(.*)\s+Function\s+\d+:\s+Offset\s+..h$/)) {
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$name = $1;
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$name =~ s/ +$//;
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$step = 3;
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$description =~ s/\n+$//ms;
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if ($previous_bits ne '') {
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&finish_record($previous_bits);
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$previous_bits = ''; # reset previous_bits (used in step 6)
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}
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next;
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} elsif ($step == 2) {
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$description .= "$line\n";
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next;
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}
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if (($step == 3) && ($line =~ /^\s+Index (.+h)$/)) {
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$raw_register= $1;
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@registers = split(/,/,$raw_register);
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for (my $i=0;$i<=$#registers;$i++) {
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$registers[$i] =~ s/ //g;
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$registers[$i] =~ s/h$//;
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}
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# OK, we have our register(s), so now we can print out the name and description lines.
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print "\$info{'$registers[0]'}{'name'} = \"$name\";\n";
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print "\$info{'$registers[0]'}{'description'} = \"$description\";\n";
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$step = 4;
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next;
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}
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if (($step == 4) && ($line =~ /^Bits\s+Mnemonic\s+Function\s+R\/W\s+Reset$/)) {
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$step = 5;
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next;
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}
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if (($step == 5) && (!($line =~ /^Field Descriptions$/))) {
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$line =~ s/^ +//; # Strip leading spaces
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my @f = split(/ +/,$line);
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# skip blank lines
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next if (!exists($f[0]));
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# skip headers (they could be repeated if the table crosses a page boundary
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next if ($f[0] eq 'Bits');
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# Clean up funky field separator
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if ($f[0] =~ /\d+.+\d+/) {
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$f[0] =~ s/[^\d]+/-/g;
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}
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my ($start, $stop, $width) = (0,0,0);
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if ($f[0] =~ /-/) {
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$f[0] =~ s/^(\d+)[^\d]+(\d+)$/$1-$2/;
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($stop,$start) = ($1,$2);
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$width = $stop-$start+1;
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} else {
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if ($f[0] =~ /^\d+$/) {
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$start = $stop = $f[0];
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$width = 1;
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} else {
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# continuation from previous line
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$start = $stop = $width = 0;
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}
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}
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# Some lines have only bit entries
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if (($#f < 1) && ($f[0] =~ /^\d+(|\-\d+)/)) {
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$f[4] = '';
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$f[3] = '';
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$f[2] = '';
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$f[1] = '';
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} elsif ($#f < 1) {
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# Some lines are a continuation of the function field a line above
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$f[4] = '';
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$f[3] = '';
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$f[2] = $f[0];
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$f[1] = '';
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$f[0] = '';
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my $tmp = "\$info{'$registers[0]'}{'ranges'}{" . $previous_res . "}{'function'} .= \"" . $f[2] . "\";\n";
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print &multiply($tmp,$previous_res,$previous_start,$previous_stop);
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next;
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}
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# Some lines have only bit and reset entries
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if ($#f < 2) {
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$f[4] = $f[1];
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$f[3] = '';
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$f[2] = '';
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$f[1] = '';
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}
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# Some lines have no mnemonic and no function
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if ($#f < 3) {
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$f[4] = $f[2];
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$f[3] = $f[1];
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$f[2] = '';
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$f[1] = '';
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}
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# functions with 'reserved' mnemonic have no function
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if ($f[1] =~ /^reserved$/i) {
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$f[4] = $f[3];
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$f[3] = $f[2];
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$f[2] = '';
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}
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$previous_res = $f[0];
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$previous_start = $start;
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$previous_stop = $stop;
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# the 'range' field is not useful in this instance, but used in the 'fields' version of this block to easily go
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# from a bit position to the corresponding range.
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my $str = "
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'function'} = \"" . $f[2] . "\";
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'mnemonic'} = \"" . $f[1] . "\";
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'description'} = \"" . "\";
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'begin'} = $start;
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'end'} = $stop;
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'width'} = $width;
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'rw'} = \"" . $f[3] . "\";
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'reset'} = \"" . $f[4] . "\";
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\$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'range'} = \"" . $f[0] . "\";
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";
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my $output;
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$output = &multiply($str,$f[0],$start,$stop);
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# Load the data structure here, too
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eval($output);
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print $output . "\n\n";
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} elsif (($step == 5) && ($line =~ /^Field Descriptions$/)) {
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$step = 6;
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next;
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}
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if ($step == 6) {
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if ($line =~ /^(.*?)\((.*?)\).+Bit(s|) +(.*?)\. (.*)$/) {
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my $bits = $4;
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my $desc = $5;
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$bits =~ s/[^\d]+/-/;
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if ($previous_bits ne '') {
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# We're done with a field description block
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print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'description'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'description'} . "\";\n";
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foreach my $k (keys %{$info{$registers[0]}{'ranges'}{$previous_bits}{'values'}}) {
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print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'values'}{'$k'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'values'}{$k} . "\";\n";
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}
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}
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if (exists($info{$registers[0]}{'ranges'}{$bits})) {
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print STDERR "match ($bits) on $line\n";
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$info{$registers[0]}{'ranges'}{$bits}{'description'} = $desc . "\n";
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$previous_bits = $bits;
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}
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} elsif ($previous_bits ne '') {
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$info{$registers[0]}{'ranges'}{$previous_bits}{'description'} .= $line . "\n";
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if ($line =~ /([0-9a-f]+b|[0-9a-f]+h) = (.*)$/i) {
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$info{$registers[0]}{'ranges'}{$previous_bits}{'values'}{$1} = $2;
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}
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}
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}
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}
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&finish_record($previous_bits);
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print "1;\n";
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sub multiply {
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my $str = shift;
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my $range = shift;
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my $start = shift;
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my $stop = shift;
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my $output = '';
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for (my $i=$start;$i<=$stop;$i++) {
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my $tmp = $str;
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$tmp =~ s/\{'$range'\}/{'$i'}/g;
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$tmp =~ s/\{'ranges'\}/{'fields'}/g;
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$tmp .=
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$output .= $tmp;
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}
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#$output .= $str if (($stop - $start + 1) > 1);
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$output .= $str;
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return $output;
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}
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sub finish_record {
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my $previous_bits = shift;
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# We're done with a field description block
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print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'description'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'description'} . "\";\n";
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foreach my $k (keys %{$info{$registers[0]}{'ranges'}{$previous_bits}{'values'}}) {
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print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'values'}{'$k'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'values'}{$k} . "\";\n";
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}
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# End of table. If this data applies to more than one register, print duplication lines.
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for (my $i=1;$i<=$#registers;$i++) {
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print "\$info{'$registers[$i]'} = \$info{'$registers[0]'};\n";
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}
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}
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