xref: /illumos-gate/usr/src/boot/efi/libefi/libefi.c (revision 22028508)
165f62d6eSToomas Soome /*
2199767f8SToomas Soome  * Copyright (c) 2000 Doug Rabson
3199767f8SToomas Soome  * All rights reserved.
4199767f8SToomas Soome  *
5199767f8SToomas Soome  * Redistribution and use in source and binary forms, with or without
6199767f8SToomas Soome  * modification, are permitted provided that the following conditions
7199767f8SToomas Soome  * are met:
8199767f8SToomas Soome  * 1. Redistributions of source code must retain the above copyright
9199767f8SToomas Soome  *    notice, this list of conditions and the following disclaimer.
10199767f8SToomas Soome  * 2. Redistributions in binary form must reproduce the above copyright
11199767f8SToomas Soome  *    notice, this list of conditions and the following disclaimer in the
12199767f8SToomas Soome  *    documentation and/or other materials provided with the distribution.
13199767f8SToomas Soome  *
14199767f8SToomas Soome  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15199767f8SToomas Soome  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16199767f8SToomas Soome  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17199767f8SToomas Soome  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18199767f8SToomas Soome  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19199767f8SToomas Soome  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20199767f8SToomas Soome  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21199767f8SToomas Soome  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22199767f8SToomas Soome  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23199767f8SToomas Soome  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24199767f8SToomas Soome  * SUCH DAMAGE.
25199767f8SToomas Soome  */
26199767f8SToomas Soome 
27199767f8SToomas Soome #include <sys/cdefs.h>
28199767f8SToomas Soome 
29199767f8SToomas Soome #include <efi.h>
30199767f8SToomas Soome #include <efilib.h>
31199767f8SToomas Soome 
32199767f8SToomas Soome EFI_HANDLE		IH;
33199767f8SToomas Soome EFI_SYSTEM_TABLE	*ST;
34199767f8SToomas Soome EFI_BOOT_SERVICES	*BS;
35199767f8SToomas Soome EFI_RUNTIME_SERVICES	*RS;
36199767f8SToomas Soome 
37199767f8SToomas Soome void *
efi_get_table(EFI_GUID * tbl)38199767f8SToomas Soome efi_get_table(EFI_GUID *tbl)
39199767f8SToomas Soome {
40199767f8SToomas Soome 	EFI_GUID *id;
41199767f8SToomas Soome 	int i;
42199767f8SToomas Soome 
43199767f8SToomas Soome 	for (i = 0; i < ST->NumberOfTableEntries; i++) {
44199767f8SToomas Soome 		id = &ST->ConfigurationTable[i].VendorGuid;
45199767f8SToomas Soome 		if (!memcmp(id, tbl, sizeof(EFI_GUID)))
46199767f8SToomas Soome 			return (ST->ConfigurationTable[i].VendorTable);
47199767f8SToomas Soome 	}
48199767f8SToomas Soome 	return (NULL);
49199767f8SToomas Soome }
50bf693dc9SToomas Soome 
51bf693dc9SToomas Soome EFI_STATUS
OpenProtocolByHandle(EFI_HANDLE handle,EFI_GUID * protocol,void ** interface)52bf693dc9SToomas Soome OpenProtocolByHandle(EFI_HANDLE handle, EFI_GUID *protocol, void **interface)
53bf693dc9SToomas Soome {
54bf693dc9SToomas Soome 	return (BS->OpenProtocol(handle, protocol, interface, IH, NULL,
55bf693dc9SToomas Soome 	    EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL));
56bf693dc9SToomas Soome }
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