Ward Vandewege | 3d83cff | 2009-10-28 19:41:52 +0000 | [diff] [blame] | 1 | #!/usr/bin/perl -w |
| 2 | |
| 3 | my $NAME = $0; |
| 4 | my $VERSION = '0.01'; |
| 5 | my $DATE = '2009-09-04'; |
| 6 | my $AUTHOR = "Ward Vandewege <ward\@jhvc.com>"; |
| 7 | my $COPYRIGHT = "2009"; |
| 8 | my $LICENSE = "GPL v3 - http://www.fsf.org/licenses/gpl.txt"; |
| 9 | my $URL = "http://coreboot.org"; |
| 10 | |
| 11 | my $DEBUG = 0; |
| 12 | |
| 13 | use strict; |
| 14 | |
| 15 | # Run the bkdg for k8 through pdftotext first (from the poppler package) |
| 16 | |
| 17 | my @registers = (); |
| 18 | my $raw_register = ''; |
| 19 | |
| 20 | my $name = ''; |
| 21 | my $description = ''; |
| 22 | my $step = 0; |
| 23 | my $oldstep = 0; |
| 24 | |
| 25 | my $previous_res = 0; |
| 26 | my $previous_start = 0; |
| 27 | my $previous_stop = 0; |
| 28 | my $strip_empties = 0; |
| 29 | |
| 30 | my $previous_bits = ''; |
| 31 | |
| 32 | our %info; |
| 33 | |
| 34 | my %typos; |
| 35 | |
| 36 | $typos{'CkeDreStrength'} = 'CkeDrvStrength'; |
| 37 | |
| 38 | while (<>) { |
| 39 | my $line = $_; |
| 40 | chomp($line); |
| 41 | |
| 42 | foreach my $k (keys %typos) { |
| 43 | $line =~ s/$k/$typos{$k}/; |
| 44 | } |
| 45 | |
| 46 | # Make sure we do not include headers in our output |
| 47 | if (($line =~ /^Chapter 4/) || ($line =~ /Chapter 4$/)) { |
| 48 | $oldstep = $step; |
| 49 | $step = 99; |
| 50 | next; |
| 51 | } |
| 52 | if ($step == 99) { # header |
| 53 | if ($line =~ /Processors$/) { |
| 54 | $step = $oldstep; |
| 55 | $strip_empties = 1; |
| 56 | } |
| 57 | next; |
| 58 | } |
| 59 | |
| 60 | if ($strip_empties) { |
| 61 | # Headers are followed by two blank lines. Strip them. |
| 62 | if ($line =~ /^\s*$/) { |
| 63 | next; |
| 64 | } else { |
| 65 | $strip_empties = 0; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | |
| 70 | if (($step % 6 == 0) && ($line =~ /^\d+\.\d+\.\d+\s+(.*)$/)) { |
| 71 | $step = 1; |
| 72 | next; |
| 73 | } |
| 74 | if ($step == 1) { |
| 75 | $description = "$line\n"; |
| 76 | $step = 2; |
| 77 | next; |
| 78 | } |
| 79 | #print STDERR "STEP: $step\n"; |
| 80 | #print STDERR "$line\n"; |
| 81 | |
| 82 | if ((($step == 0) || ($step == 6) || ($step == 2)) && ($line =~ /^(.*)\s+Function\s+\d+:\s+Offset\s+..h$/)) { |
| 83 | $name = $1; |
| 84 | $name =~ s/ +$//; |
| 85 | $step = 3; |
| 86 | $description =~ s/\n+$//ms; |
| 87 | |
| 88 | if ($previous_bits ne '') { |
| 89 | &finish_record($previous_bits); |
| 90 | $previous_bits = ''; # reset previous_bits (used in step 6) |
| 91 | } |
| 92 | |
| 93 | |
| 94 | next; |
| 95 | } elsif ($step == 2) { |
| 96 | $description .= "$line\n"; |
| 97 | next; |
| 98 | } |
| 99 | |
| 100 | if (($step == 3) && ($line =~ /^\s+Index (.+h)$/)) { |
| 101 | $raw_register= $1; |
| 102 | @registers = split(/,/,$raw_register); |
| 103 | for (my $i=0;$i<=$#registers;$i++) { |
| 104 | $registers[$i] =~ s/ //g; |
| 105 | $registers[$i] =~ s/h$//; |
| 106 | } |
| 107 | # OK, we have our register(s), so now we can print out the name and description lines. |
| 108 | print "\$info{'$registers[0]'}{'name'} = \"$name\";\n"; |
| 109 | print "\$info{'$registers[0]'}{'description'} = \"$description\";\n"; |
| 110 | $step = 4; |
| 111 | next; |
| 112 | } |
| 113 | |
| 114 | if (($step == 4) && ($line =~ /^Bits\s+Mnemonic\s+Function\s+R\/W\s+Reset$/)) { |
| 115 | $step = 5; |
| 116 | next; |
| 117 | } |
| 118 | |
| 119 | if (($step == 5) && (!($line =~ /^Field Descriptions$/))) { |
| 120 | $line =~ s/^ +//; # Strip leading spaces |
| 121 | my @f = split(/ +/,$line); |
| 122 | |
| 123 | # skip blank lines |
| 124 | next if (!exists($f[0])); |
| 125 | |
| 126 | # skip headers (they could be repeated if the table crosses a page boundary |
| 127 | next if ($f[0] eq 'Bits'); |
| 128 | |
| 129 | # Clean up funky field separator |
| 130 | if ($f[0] =~ /\d+.+\d+/) { |
| 131 | $f[0] =~ s/[^\d]+/-/g; |
| 132 | } |
| 133 | |
| 134 | my ($start, $stop, $width) = (0,0,0); |
| 135 | if ($f[0] =~ /-/) { |
| 136 | $f[0] =~ s/^(\d+)[^\d]+(\d+)$/$1-$2/; |
| 137 | ($stop,$start) = ($1,$2); |
| 138 | $width = $stop-$start+1; |
| 139 | } else { |
| 140 | if ($f[0] =~ /^\d+$/) { |
| 141 | $start = $stop = $f[0]; |
| 142 | $width = 1; |
| 143 | } else { |
| 144 | # continuation from previous line |
| 145 | $start = $stop = $width = 0; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | # Some lines have only bit entries |
| 150 | if (($#f < 1) && ($f[0] =~ /^\d+(|\-\d+)/)) { |
| 151 | $f[4] = ''; |
| 152 | $f[3] = ''; |
| 153 | $f[2] = ''; |
| 154 | $f[1] = ''; |
| 155 | } elsif ($#f < 1) { |
| 156 | # Some lines are a continuation of the function field a line above |
| 157 | $f[4] = ''; |
| 158 | $f[3] = ''; |
| 159 | $f[2] = $f[0]; |
| 160 | $f[1] = ''; |
| 161 | $f[0] = ''; |
| 162 | my $tmp = "\$info{'$registers[0]'}{'ranges'}{" . $previous_res . "}{'function'} .= \"" . $f[2] . "\";\n"; |
| 163 | print &multiply($tmp,$previous_res,$previous_start,$previous_stop); |
| 164 | next; |
| 165 | } |
| 166 | |
| 167 | # Some lines have only bit and reset entries |
| 168 | if ($#f < 2) { |
| 169 | $f[4] = $f[1]; |
| 170 | $f[3] = ''; |
| 171 | $f[2] = ''; |
| 172 | $f[1] = ''; |
| 173 | } |
| 174 | |
| 175 | # Some lines have no mnemonic and no function |
| 176 | if ($#f < 3) { |
| 177 | $f[4] = $f[2]; |
| 178 | $f[3] = $f[1]; |
| 179 | $f[2] = ''; |
| 180 | $f[1] = ''; |
| 181 | } |
| 182 | |
| 183 | # functions with 'reserved' mnemonic have no function |
| 184 | if ($f[1] =~ /^reserved$/i) { |
| 185 | $f[4] = $f[3]; |
| 186 | $f[3] = $f[2]; |
| 187 | $f[2] = ''; |
| 188 | } |
| 189 | |
| 190 | $previous_res = $f[0]; |
| 191 | $previous_start = $start; |
| 192 | $previous_stop = $stop; |
| 193 | |
| 194 | # the 'range' field is not useful in this instance, but used in the 'fields' version of this block to easily go |
| 195 | # from a bit position to the corresponding range. |
| 196 | my $str = " |
| 197 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'function'} = \"" . $f[2] . "\"; |
| 198 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'mnemonic'} = \"" . $f[1] . "\"; |
| 199 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'description'} = \"" . "\"; |
| 200 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'begin'} = $start; |
| 201 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'end'} = $stop; |
| 202 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'width'} = $width; |
| 203 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'rw'} = \"" . $f[3] . "\"; |
| 204 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'reset'} = \"" . $f[4] . "\"; |
| 205 | \$info{'$registers[0]'}{'ranges'}{'" . $f[0] . "'}{'range'} = \"" . $f[0] . "\"; |
| 206 | "; |
| 207 | my $output; |
| 208 | |
| 209 | $output = &multiply($str,$f[0],$start,$stop); |
| 210 | |
| 211 | # Load the data structure here, too |
| 212 | eval($output); |
| 213 | |
| 214 | print $output . "\n\n"; |
| 215 | } elsif (($step == 5) && ($line =~ /^Field Descriptions$/)) { |
| 216 | $step = 6; |
| 217 | next; |
| 218 | } |
| 219 | |
| 220 | if ($step == 6) { |
| 221 | if ($line =~ /^(.*?)\((.*?)\).+Bit(s|) +(.*?)\. (.*)$/) { |
| 222 | my $bits = $4; |
| 223 | my $desc = $5; |
| 224 | $bits =~ s/[^\d]+/-/; |
| 225 | |
| 226 | if ($previous_bits ne '') { |
| 227 | # We're done with a field description block |
| 228 | print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'description'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'description'} . "\";\n"; |
| 229 | foreach my $k (keys %{$info{$registers[0]}{'ranges'}{$previous_bits}{'values'}}) { |
| 230 | print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'values'}{'$k'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'values'}{$k} . "\";\n"; |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | if (exists($info{$registers[0]}{'ranges'}{$bits})) { |
| 235 | print STDERR "match ($bits) on $line\n"; |
| 236 | $info{$registers[0]}{'ranges'}{$bits}{'description'} = $desc . "\n"; |
| 237 | $previous_bits = $bits; |
| 238 | } |
| 239 | } elsif ($previous_bits ne '') { |
| 240 | $info{$registers[0]}{'ranges'}{$previous_bits}{'description'} .= $line . "\n"; |
| 241 | if ($line =~ /([0-9a-f]+b|[0-9a-f]+h) = (.*)$/i) { |
| 242 | $info{$registers[0]}{'ranges'}{$previous_bits}{'values'}{$1} = $2; |
| 243 | } |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | } |
| 248 | &finish_record($previous_bits); |
| 249 | |
| 250 | |
| 251 | print "1;\n"; |
| 252 | |
| 253 | sub multiply { |
| 254 | my $str = shift; |
| 255 | my $range = shift; |
| 256 | my $start = shift; |
| 257 | my $stop = shift; |
| 258 | my $output = ''; |
| 259 | for (my $i=$start;$i<=$stop;$i++) { |
| 260 | my $tmp = $str; |
| 261 | $tmp =~ s/\{'$range'\}/{'$i'}/g; |
| 262 | $tmp =~ s/\{'ranges'\}/{'fields'}/g; |
| 263 | $tmp .= |
| 264 | $output .= $tmp; |
| 265 | } |
| 266 | |
| 267 | #$output .= $str if (($stop - $start + 1) > 1); |
| 268 | $output .= $str; |
| 269 | |
| 270 | return $output; |
| 271 | } |
| 272 | |
| 273 | sub finish_record { |
| 274 | my $previous_bits = shift; |
| 275 | # We're done with a field description block |
| 276 | print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'description'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'description'} . "\";\n"; |
| 277 | foreach my $k (keys %{$info{$registers[0]}{'ranges'}{$previous_bits}{'values'}}) { |
| 278 | print "\$info{'$registers[0]'}{'ranges'}{'$previous_bits'}{'values'}{'$k'} = \"" . $info{$registers[0]}{'ranges'}{$previous_bits}{'values'}{$k} . "\";\n"; |
| 279 | } |
| 280 | |
| 281 | # End of table. If this data applies to more than one register, print duplication lines. |
| 282 | for (my $i=1;$i<=$#registers;$i++) { |
| 283 | print "\$info{'$registers[$i]'} = \$info{'$registers[0]'};\n"; |
| 284 | } |
| 285 | |
| 286 | } |