1/*	$NetBSD: efifpswa.c,v 1.5 2016/08/04 18:07:43 scole 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#include <efifpswa.h>
40
41#include <bootstrap.h>
42#include "efiboot.h"
43
44int
45fpswa_init(u_int64_t *fpswa_interface)
46{
47	EFI_STATUS	status;
48	static EFI_GUID	fpswaid = EFI_INTEL_FPSWA;
49	UINTN		sz;
50	EFI_HANDLE	fpswa_handle;
51	FPSWA_INTERFACE *fpswa;
52
53	*fpswa_interface = 0;
54	sz = sizeof(EFI_HANDLE);
55	status = BS->LocateHandle(ByProtocol, &fpswaid, 0, &sz, &fpswa_handle);
56	if (EFI_ERROR(status))
57		return ENOENT;
58
59	status = BS->HandleProtocol(fpswa_handle, &fpswaid, (VOID **)&fpswa);
60	if (EFI_ERROR(status))
61		return ENOENT;
62	*fpswa_interface = (u_int64_t)fpswa;
63	return 0;
64}
65