24ffe931b9
kernel before we call ExitBootServices(). I've typed the definitions in efifpswa.h from the Intel FPSWA manual (urk).
60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*-
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* Copyright (c) 2001 Peter Wemm <peter@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/time.h>
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#include <stddef.h>
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#include <stand.h>
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#include <stdarg.h>
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#include <efi.h>
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#include <efilib.h>
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#include "efiboot.h"
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int
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fpswa_init(u_int64_t *fpswa_interface)
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{
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EFI_STATUS status;
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static EFI_GUID fpswaid = EFI_INTEL_FPSWA;
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UINTN sz;
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EFI_HANDLE fpswa_handle;
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FPSWA_INTERFACE *fpswa;
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*fpswa_interface = 0;
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sz = sizeof(EFI_HANDLE);
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status = BS->LocateHandle(ByProtocol, &fpswaid, 0, &sz, &fpswa_handle);
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if (EFI_ERROR(status))
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return ENOENT;
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status = BS->HandleProtocol(fpswa_handle, &fpswaid, (VOID **)&fpswa);
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if (EFI_ERROR(status))
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return ENOENT;
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*fpswa_interface = (u_int64_t)fpswa;
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return 0;
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}
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