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Last change
on this file since 99396 was 80721, checked in by vboxsync, 5 years ago |
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Devices/EFI/FirmwareNew: Start upgrade process to edk2-stable201908 (compiles on Windows and works to some extent), bugref:4643
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File size:
951 bytes
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| 1 | /** @file
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| 2 | PC/AT CMOS access routines
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| 3 |
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| 4 | Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
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| 5 | Copyright (c) 2019, Citrix Systems, Inc.
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| 6 |
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| 7 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 8 |
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| 9 | **/
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| 10 |
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| 11 | #ifndef __CMOS_H__
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| 12 | #define __CMOS_H__
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| 13 |
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| 14 | /**
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| 15 | Reads 8-bits of CMOS data.
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| 16 |
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| 17 | Reads the 8-bits of CMOS data at the location specified by Index.
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| 18 | The 8-bit read value is returned.
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| 19 |
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| 20 | @param Index The CMOS location to read.
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| 21 |
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| 22 | @return The value read.
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| 23 |
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| 24 | **/
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| 25 | UINT8
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| 26 | EFIAPI
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| 27 | CmosRead8 (
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| 28 | IN UINTN Index
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| 29 | );
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| 30 |
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| 31 | /**
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| 32 | Writes 8-bits of CMOS data.
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| 33 |
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| 34 | Writes 8-bits of CMOS data to the location specified by Index
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| 35 | with the value specified by Value and returns Value.
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| 36 |
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| 37 | @param Index The CMOS location to write.
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| 38 | @param Value The value to write to CMOS.
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| 39 |
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| 40 | @return The value written to CMOS.
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| 41 |
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| 42 | **/
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| 43 | UINT8
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| 44 | EFIAPI
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| 45 | CmosWrite8 (
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| 46 | IN UINTN Index,
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| 47 | IN UINT8 Value
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| 48 | );
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| 49 |
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| 50 |
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| 51 | #endif
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| 52 |
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