/*      $NetBSD: efifpswa.c,v 1.5 2016/08/04 18:07:43 scole Exp $       */

/*-
* Copyright (c) 2001 Peter Wemm <[email protected]>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#include <sys/cdefs.h>
/* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/efifpswa.c,v 1.2 2004/01/04 23:28:16 obrien Exp $"); */

#include <sys/param.h>
#include <sys/time.h>
#include <lib/libsa/stand.h>
#include <lib/libsa/loadfile.h>

#include <efi.h>
#include <efilib.h>
#include <efifpswa.h>

#include <bootstrap.h>
#include "efiboot.h"

int
fpswa_init(u_int64_t *fpswa_interface)
{
       EFI_STATUS      status;
       static EFI_GUID fpswaid = EFI_INTEL_FPSWA;
       UINTN           sz;
       EFI_HANDLE      fpswa_handle;
       FPSWA_INTERFACE *fpswa;

       *fpswa_interface = 0;
       sz = sizeof(EFI_HANDLE);
       status = BS->LocateHandle(ByProtocol, &fpswaid, 0, &sz, &fpswa_handle);
       if (EFI_ERROR(status))
               return ENOENT;

       status = BS->HandleProtocol(fpswa_handle, &fpswaid, (VOID **)&fpswa);
       if (EFI_ERROR(status))
               return ENOENT;
       *fpswa_interface = (u_int64_t)fpswa;
       return 0;
}