sys/arch/ia64/stand/efi/libefi/efifpswa.c

   1 /*      $NetBSD: efifpswa.c,v 1.2 2006/04/22 07:58:53 cherry 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 #include <machine/stdarg.h>
  37
  38 #include <efi.h>
  39 #include <efilib.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 }