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1.1 root 1: #! /usr/bin/perl -w
2:
3: # get-pci-ids: extract pci vendor/device ids from linux net drivers
4:
5: # Copyright (C) 2003 Georg Baum <[email protected]>
6:
7: # This program is free software; you can redistribute it and/or modify
8: # it under the terms of the GNU General Public License as published by
9: # the Free Software Foundation; either version 2 of the License, or
10: # (at your option) any later version.
11:
12: # This program is distributed in the hope that it will be useful,
13: # but WITHOUT ANY WARRANTY; without even the implied warranty of
14: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: # GNU General Public License for more details.
16:
17: # You should have received a copy of the GNU General Public License
18: # along with this program; if not, write to the Free Software
19: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20:
21:
22: # Known bugs/limitations:
23: # - Does not recognize all drivers because some require special cflags.
24: # Fails also on some drivers that do belong to other architectures
25: # than the one of the machine this script is running on.
26: # This is currently not so important because all drivers that have an
27: # Etherboot counterpart are recognized.
28:
29:
30: use strict;
31: use File::Basename "dirname";
32: use POSIX "uname";
33:
34: # Where to find the kernel sources
35: my $kernel_src = "/usr/src/linux";
36:
37: if($#ARGV >= 0) {
38: $kernel_src = shift;
39: }
40:
41: # Sanity checks
42: if($#ARGV >= 0) {
43: print STDERR "Too many arguments.\n";
44: print STDERR "Usage: get-pci-ids [path to kernel sources]\n";
45: print STDERR " /usr/src/linux is assumed if no path is given.\n";
46: exit 1;
47: }
48:
49: unless(-f "$kernel_src/include/linux/version.h") {
50: print STDERR "Could not find $kernel_src/include/linux/version.h.\n";
51: print STDERR "$kernel_src is probably no Linux kernel source tree.\n";
52: exit 1;
53: }
54:
55: # Flags that are needed to preprocess the drivers.
56: # Some drivers need optimization
57: my $cflags="-D__KERNEL__ -I$kernel_src/include -I$kernel_src/net/inet -O2";
58:
59: # The C preprocessor. It needs to spit out the preprocessed source on stdout.
60: my $cpp="gcc -E";
61:
62: # List of drivers. We parse every .c file. It does not harm if it does not contain a driver.
63: my @drivers = split /\s+/, `find $kernel_src/drivers/net -name '*.c' | sort`;
64:
65: # Kernel version
66: my $version = `grep UTS_RELEASE $kernel_src/include/linux/version.h`;
67: chomp $version;
68: $version =~ s/\s*#define\s+UTS_RELEASE\s+"(\S+)".*$/$1/g;
69:
70: # Architecture
71: my @uname = uname();
72:
73:
74: # Print header
75: print "# PCI vendor/device ids extracted from Linux $version on $uname[4] at " . gmtime() . "\n";
76:
77: my $driver;
78:
79: # Process the drivers
80: foreach $driver (@drivers) {
81:
82: # Preprocess to expand macros
83: my $command = "$cpp $cflags -I" . dirname($driver) . " $driver";
84: open DRIVER, "$command |" or die "Could not execute\n\"$command\".\n";
85:
86: # Extract the pci_device_id structure
87: my $found = 0;
88: my $line = "";
89: my @lines;
90: while(<DRIVER>) {
91: if(/^\s*static\s+struct\s+pci_device_id/) {
92: # This file contains a driver. Print the name.
93: $driver =~ s!$kernel_src/drivers/net/!!g;
94: print "\n$driver\n";
95: $found = 1;
96: next;
97: }
98: if($found == 1){
99: if(/\};/ or /{\s*0\s*,?\s*}/) {
100: # End of struct
101: $found = 0;
102: } else {
103: chomp;
104: if(/\}\s*,?\s*\n?$/) {
105: # This line contains a full entry or the last part of it.
106: $_ = $line . $_;
107: $line = "";
108: s/[,\{\};\(\)]//g; # Strip punctuation
109: s/^\s+//g; # Eat whitespace at beginning of line
110: tr[A-Z][a-z]; # Convert to lowercase
111: # Push the vendor and device id to @lines if this line is not empty.
112: # We ignore everything else that might be there
113: my ($vendor_id, $device_id, $remainder) = split /\W+/, $_, 3;
114: push @lines, "$vendor_id $device_id\n" if($vendor_id && $device_id);
115: } else {
116: # This line does contain a partial entry. Remember it.
117: $line .= "$_ ";
118: }
119: }
120: }
121: }
122: close DRIVER; # No "or die", because $cpp fails on some files
123:
124: # Now print out the sorted values
125: @lines = sort @lines;
126: my $lastline = "";
127: foreach(@lines) {
128: # Print each vendor/device id combination only once.
129: # Some drivers (e.g. e100) do contain subfamilies
130: print if($_ ne $lastline);
131: $lastline = $_;
132: }
133: }
134:
135:
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