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 <machine/stdarg.h> 36 37 #include <efi.h> 38 #include <efilib.h> 39 40 #include <bootstrap.h> 41 #include "efiboot.h" 42 43 int 44 fpswa_init(u_int64_t *fpswa_interface) 45 { 46 EFI_STATUS status; 47 static EFI_GUID fpswaid = EFI_INTEL_FPSWA; 48 UINTN sz; 49 EFI_HANDLE fpswa_handle; 50 FPSWA_INTERFACE *fpswa; 51 52 *fpswa_interface = 0; 53 sz = sizeof(EFI_HANDLE); 54 status = BS->LocateHandle(ByProtocol, &fpswaid, 0, &sz, &fpswa_handle); 55 if (EFI_ERROR(status)) 56 return ENOENT; 57 58 status = BS->HandleProtocol(fpswa_handle, &fpswaid, (VOID **)&fpswa); 59 if (EFI_ERROR(status)) 60 return ENOENT; 61 *fpswa_interface = (u_int64_t)fpswa; 62 return 0; 63 } 64