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
44 int
fpswa_init(u_int64_t * fpswa_interface)45 fpswa_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