#!/usr/bin/perl

use strict;
use warnings;

sub usb_vendor {
	my $vendor;

	open(IN, "<", "usb.ids");
	open(OUT, ">", "20-usb-vendor-product.hwdb");
	print(OUT "# This file is part of systemd.\n" .
	          "#\n" .
	          "# Data imported and updated from: http://www.linux-usb.org/usb.ids\n");

	while (my $line = <IN>) {
	        $line =~ s/\s+$//;
	        $line =~ m/^([0-9a-f]{4})\s*(.*)$/;
	        if (defined $1) {
	                $vendor = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "usb:v" . $vendor . "*\n");
	                print(OUT " ID_VENDOR_FROM_DATABASE=" . $text . "\n");
	                next;
	        }

	        $line =~ m/^\t([0-9a-f]{4})\s*(.*)$/;
	        if (defined $1) {
	                my $product = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "usb:v" . $vendor . "p" . $product . "*\n");
	                print(OUT " ID_PRODUCT_FROM_DATABASE=" . $text . "\n");
	        }
	}

	close(INP);
	close(OUTP);
}

sub pci_vendor {
	my $vendor;
	my $device;

	open(IN, "<", "usb.ids");
	open(IN, "<", "pci.ids");
	open(OUT, ">", "20-pci-vendor-product.hwdb");
	print(OUT "# This file is part of systemd.\n" .
	          "#\n" .
	          "# Data imported and updated from: http://pciids.sourceforge.net/v2.2/pci.ids\n");

	while (my $line = <IN>) {
	        $line =~ s/\s+$//;
	        $line =~ m/^([0-9a-f]{4})\s*(.*)$/;

	        if (defined $1) {
	                $vendor = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "pci:v0000" . $vendor . "*\n");
	                print(OUT " ID_VENDOR_FROM_DATABASE=" . $text . "\n");
	                next;
	        }

	        $line =~ m/^\t([0-9a-f]{4})\s*(.*)$/;
	        if (defined $1) {
	                $device = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "pci:v0000" . $vendor . "d0000" . $device . "*\n");
	                print(OUT " ID_PRODUCT_FROM_DATABASE=" . $text . "\n");
	                next;
	        }

	        $line =~ m/^\t\t([0-9a-f]{4})\s*([0-9a-f]{4})\s*(.*)$/;
	        if (defined $1) {
	                my $sub_vendor = uc $1;
	                my $sub_device = uc $2;
	                my $text = $3;
	                print(OUT "\n");
	                print(OUT "pci:v0000" . $vendor . "d0000" . $device . "sv0000" . $sub_vendor . "sd0000" . $sub_device . "*\n");
	                print(OUT " ID_PRODUCT_FROM_DATABASE=" . $text . "\n");
	        }
	}

	close(INP);
	close(OUTP);
}

sub pci_classes {
	my $class;
	my $subclass;
	my $interface;

	open(IN, "<", "pci.ids");
	open(OUT, ">", "20-pci-classes.hwdb");
	print(OUT "# This file is part of systemd.\n" .
	          "#\n" .
	          "# Data imported and updated from: http://pciids.sourceforge.net/v2.2/pci.ids\n");

	while (my $line = <IN>) {
	        $line =~ s/\s+$//;

	        $line =~ m/^C\ ([0-9a-f]{2})\s*(.*)$/;
	        if (defined $1) {
	                $class = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "pci:v*d*sv*sd*bc" . $class . "*\n");
	                print(OUT " ID_PCI_CLASS_FROM_DATABASE=" . $text . "\n");
	                next;
	        }

	        if (not defined $class) {
	                next;
	        }

	        $line =~ m/^\t([0-9a-f]{2})\s*(.*)$/;
	        if (defined $1) {
	                $subclass = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "pci:v*d*sv*sd*bc" . $class . "sc" . $subclass . "*\n");
	                print(OUT " ID_PCI_SUBCLASS_FROM_DATABASE=" . $text . "\n");
	                next;
	        }

	        $line =~ m/^\t\t([0-9a-f]{2})\s*(.*)$/;
	        if (defined $1) {
	                $interface = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "pci:v*d*sv*sd*bc" .  $class . "sc" . $subclass . "i" . $interface . "*\n");
	                print(OUT " ID_PCI_INTERFACE_FROM_DATABASE=" . $text . "\n");
	        }
	}

	close(INP);
	close(OUTP);
}

sub oui {
	open(IN, "<", "oui.txt");
	open(OUT, ">", "20-OUI.hwdb");
	print(OUT "# This file is part of systemd.\n" .
	          "#\n" .
	          "# Data imported and updated from: http://standards.ieee.org/develop/regauth/oui/oui.txt\n");

	while (my $line = <IN>) {
	        $line =~ s/\s+$//;
	        $line =~ m/^([0-9A-F]{6})\s*\(base 16\)\s*(.*)$/;
	        if (defined $1) {
	                my $vendor = uc $1;
	                my $text = $2;
	                print(OUT "\n");
	                print(OUT "OUI:" . $vendor . "\n");
	                print(OUT " ID_OUI_FROM_DATABASE=" . $text . "\n");
	        }
	}

	close(INP);
	close(OUTP);
}

usb_vendor();
pci_vendor();
pci_classes();
oui();