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      1 /*	$NetBSD: efifpswa.c,v 1.5 2016/08/04 18:07:43 scole Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 Peter Wemm <peter (at) 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
     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