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#!/usr/bin/perl
$ARGV[0] eq '-f' and $force = shift;
$ARGV[0] eq '-a' and $all = shift;
my $formats = join '|', grep {$_} map { /^read_(.*)/ ? $1 : '' } keys %main::;
@ARGV == 3 or die "usage: $0 [-f] [-a] $formats <in_file> <mdk_pcitable>\n";
($format, $in, $pcitable) = @ARGV;
my $read = $main::{"read_$format"} or die "unknown format $format (must be one of $formats)\n";
my $d_pci = read_pcitable($pcitable);
my $d_in = $read->($in);
merge($d_pci, $d_in);
write_pcitable($d_pci);
sub to_string {
my ($id, $driver) = @_;
my ($module, $text) = map { qq("$_") } @$driver;
my ($id1, $id2, $subid1, $subid2) = map { "0x$_" } ($id =~ /(....)/g);
join "\t", $id1, $id2, "$subid1 $subid2" ne "0xffff 0xffff" ? ($subid1, $subid2) : (), $module, $text;
}
# works for RedHat's pcitable old and new format, + mdk format (alike RedHat's old one)
# (the new format has ending .o's and double quotes are removed)
sub read_pcitable {
my ($f) = @_;
my %drivers;
my $rm_quote = sub { s/^"//; s/"$//; $_ };
open F, $f or die "read_pcitable: can't open $f\n";
my $line = 0;
foreach (<F>) {
chomp; $line++;
next if /^#/ || /^\s*$/;
if (my ($id1, $id2, @l) = split /\t+/) {
my ($subid1, $subid2) = ('ffff', 'ffff');
($subid1, $subid2, @l) = @l if @l == 4;
@l == 2 or die "$f $line: bad number of fields (in $_)\n";
my ($module, $text) = @l;
my $class = $text =~ /(.*?)|/;
my $id1_ = $rm_quote->($id1);
if ($class{$id1_}) {
print STDERR "$f $line: class $id1_ named both $class and $class{$id1_}, taking $class{$id1_}\n";
$class{$id1_} ||= $1;
$text =~ s/(.*?)|/$class{$id1_}|/;
}
$module =~ s/\.o$//;
$module = "unknown" if $module =~ /alsa|ignore/; # stupid rh stuff
my $id = join '', map { s/^0x//; $_ } $id1, $id2, $subid1, $subid2;
$drivers{$id} and print STDERR "$f $line: multiple entry for $id (skipping $module $text)\n";
$drivers{$id} ||= [ map &$rm_quote, $module, $text ];
}
}
\%drivers;
}
sub read_kernel_pcimap {
my ($f) = @_;
my %drivers;
open F, $f or die "read_kernel_pcimap: can't open $f\n";
foreach (<F>) {
chomp;
next if /^#/ || /^\s*$/;
my ($module, $id1, $id2, $subid1, $subid2) = split;
$drivers{join '', map { /(....)$/ } $id1, $id2, $subid1, $subid2} = [ $module, '' ];
}
\%drivers;
}
sub read_pciids {
my ($f) = @_;
my %drivers;
my ($id1, $id2, $class, $line);
open F, $f or die "read_pciids: can't open $f\n";
foreach (<F>) {
chomp; $line++;
next if /^#/ || /^;/ || /^\s*$/;
if (/^C\s/) {
last;
} elsif (/^\t\t(\S+)\s+(\S+)\s+(.*)/) {
$id1 && $id2 or die "$f $line: unexpected device\n";
$drivers{"$id1$id2$1$2"} = [ "unknown", "$class|$3" ];
} elsif (/^\t(\S+)\s+(.*)/) {
$id2 = $1;
$id1 && $id2 or die "$f $line: unexpected device\n";
$drivers{"$id1${id2}ffffffff"} = [ "unknown", "$class|$2" ];
} elsif (/^(\S+)\s+(.*)/) {
$id1 = $1;
$class = $class{$2} || $2;
} else {
die "bad line: $_";
}
}
\%drivers;
}
sub read_pcitablepm {
my ($f) = @_;
open F, $f or die "read_pcitablepm: can't open $f\n";
eval join('', <F>);
%pci_probing::pcitable::ids or die;
while (my ($k, $v) = each %pci_probing::pcitable::ids) {
$drivers{sprintf qq(%08xffffffff), $k >> 32} = [ $v->[1], $v->[0] ];
}
\%drivers;
}
# write in RedHat's pcitable old format (mdk one)
sub write_pcitable {
my ($drivers) = @_;
foreach (sort keys %$drivers) {
print to_string($_, $drivers->{$_}), "\n";
}
}
sub merge {
my ($drivers, $new) = @_;
foreach (keys %$new) {
next if $new->{$_}[0] =~ /parport_pc|i810_ng/;
if ($drivers->{$_}) {
if ($new->{$_}[0] !~ /unknown|ignore/) {
if ($drivers->{$_}[0] =~ /unknown|ignore/ || $force) {
$drivers->{$_}[0] = $new->{$_}[0];
} elsif ($drivers->{$_}[0] ne $new->{$_}[0]) {
print STDERR "different($drivers->{$_}[0] $new->{$_}[0]): ", to_string($_, $drivers->{$_}), "\n"
# special case for framebuffer modules
unless $new->{$_}[0] =~ /fb/ && $drivers->{$_}[0] =~ /^(Card|Server):/;
}
}
} else {
$drivers->{$_} = $new->{$_}
# don't keep sub-entries with unknown drivers
if $all || /ffffffff$/ || $new->{$_}[0] !~ /(unknown|ignore)/;
}
}
}
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