1/*-
2 * Copyright (c) 2000 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <efi.h>
31#include <eficonsctl.h>
32#include <efilib.h>
33#include <stand.h>
34
35EFI_HANDLE		IH;
36EFI_SYSTEM_TABLE	*ST;
37EFI_BOOT_SERVICES	*BS;
38EFI_RUNTIME_SERVICES	*RS;
39
40void *
41efi_get_table(EFI_GUID *tbl)
42{
43	EFI_GUID *id;
44	int i;
45
46	for (i = 0; i < ST->NumberOfTableEntries; i++) {
47		id = &ST->ConfigurationTable[i].VendorGuid;
48		if (!memcmp(id, tbl, sizeof(EFI_GUID)))
49			return (ST->ConfigurationTable[i].VendorTable);
50	}
51	return (NULL);
52}
53
54EFI_STATUS
55OpenProtocolByHandle(EFI_HANDLE handle, EFI_GUID *protocol, void **interface)
56{
57	return (BS->OpenProtocol(handle, protocol, interface, IH, NULL,
58	    EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL));
59}
60