1/*	$NetBSD: efifpswa.c,v 1.3 2009/07/20 04:59:03 kiyohara Exp $	*/
2
3/*-
4 * Copyright (c) 2001 Peter Wemm <peter@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30/* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/efifpswa.c,v 1.2 2004/01/04 23:28:16 obrien Exp $"); */
31
32#include <sys/param.h>
33#include <sys/time.h>
34#include <lib/libsa/stand.h>
35#include <lib/libsa/loadfile.h>
36
37#include <efi.h>
38#include <efilib.h>
39
40#include <bootstrap.h>
41#include "efiboot.h"
42
43int
44fpswa_init(u_int64_t *fpswa_interface)
45{
46	EFI_STATUS	status;
47	static EFI_GUID	fpswaid = EFI_INTEL_FPSWA;
48	UINTN		sz;
49	EFI_HANDLE	fpswa_handle;
50	FPSWA_INTERFACE *fpswa;
51
52	*fpswa_interface = 0;
53	sz = sizeof(EFI_HANDLE);
54	status = BS->LocateHandle(ByProtocol, &fpswaid, 0, &sz, &fpswa_handle);
55	if (EFI_ERROR(status))
56		return ENOENT;
57
58	status = BS->HandleProtocol(fpswa_handle, &fpswaid, (VOID **)&fpswa);
59	if (EFI_ERROR(status))
60		return ENOENT;
61	*fpswa_interface = (u_int64_t)fpswa;
62	return 0;
63}
64