#!/usr/bin/perl
# Copyright 2015 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

use strict;
our $opt_D;

use File::Basename;
my $progdir = dirname($0);
my $prog = basename($0);

use Getopt::Std;
my $usage = "
Usage:  $prog [HEADER]

This converts the FPGA release's generated C header file into the
hw_regdefs.h file that is included by chip/g/registers.h.
Mostly it just prefaces the macros with GC_ to avoid name collision.

";
getopts('D') or die $usage;


print "/*
 * Copyright 2015 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/* This file is autogenerated by the $prog utility. Do not edit. */

";

while(<>)
{
    if ( s/\b\w+_REGDEFS_H/__EC_CHIP_G_CR50_FPGA_REGDEFS_H/g )
    {
        print;
        next;
    }

    if ( s/__ENABLE_FLASH_DFT_DEFINITIONS__/GC__ENABLE_FLASH_DFT_DEFINITIONS__/g )
    {
        print;
        next;
    }

    if ( s/\bFLASH_DFT/GC_FLASH_DFT/g )
    {
        print;
        next;
    }

    if ( m/^#define\s+(\S+)\s+(\S+)\s*$/ )
    {
        my ($k,$v) = ($1,$2);

        if ($k =~ m/^IRQNUM/) {
            # irqnums must be decimal
            $v = 0 + hex($v);
        }
	$k = "GC_$k";
        printf("#define %-40s %s\n", $k, $v);
	if ( $k =~ m/0_BASE_ADDR$/ ) {
	    $k =~ s/0_BASE_ADDR/_BASE_ADDR/;
	    printf("#define %-40s %s\n", $k, $v);
	}
        next;
    }

    next if m!//!;
    next if m!/\*! .. m!\*/!;

    print;
}