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Stefan Reinauer6540ae52007-07-12 16:35:42 +00001/*****************************************************************************\
2 * cmos_ops.h
Stefan Reinauer6540ae52007-07-12 16:35:42 +00003 *****************************************************************************
4 * Copyright (C) 2002-2005 The Regents of the University of California.
5 * Produced at the Lawrence Livermore National Laboratory.
6 * Written by David S. Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
7 * UCRL-CODE-2003-012
8 * All rights reserved.
9 *
Uwe Hermann6e565942008-03-01 19:06:32 +000010 * This file is part of nvramtool, a utility for reading/writing coreboot
Stefan Reinauerf527e702008-01-18 15:33:49 +000011 * parameters and displaying information from the coreboot table.
Uwe Hermann6e565942008-03-01 19:06:32 +000012 * For details, see http://coreboot.org/nvramtool.
Stefan Reinauer6540ae52007-07-12 16:35:42 +000013 *
14 * Please also read the file DISCLAIMER which is included in this software
15 * distribution.
16 *
17 * This program is free software; you can redistribute it and/or modify it
18 * under the terms of the GNU General Public License (as published by the
19 * Free Software Foundation) version 2, dated June 1991.
20 *
21 * This program is distributed in the hope that it will be useful, but
22 * WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
24 * conditions of the GNU General Public License for more details.
Stefan Reinauer6540ae52007-07-12 16:35:42 +000025\*****************************************************************************/
26
Uwe Hermann6e565942008-03-01 19:06:32 +000027#ifndef CMOS_OPS_H
28#define CMOS_OPS_H
Stefan Reinauer6540ae52007-07-12 16:35:42 +000029
30#include "common.h"
31#include "layout.h"
32
33#define CMOS_OP_BAD_ENUM_VALUE (CMOS_OP_RESULT_START + 0)
34#define CMOS_OP_NEGATIVE_INT (CMOS_OP_RESULT_START + 1)
35#define CMOS_OP_INVALID_INT (CMOS_OP_RESULT_START + 2)
36#define CMOS_OP_RESERVED (CMOS_OP_RESULT_START + 3)
37#define CMOS_OP_VALUE_TOO_WIDE (CMOS_OP_RESULT_START + 4)
38#define CMOS_OP_NO_MATCHING_ENUM (CMOS_OP_RESULT_START + 5)
39
Stefan Reinauer90b96b62010-01-13 21:00:23 +000040int prepare_cmos_read(const cmos_entry_t * e);
41int prepare_cmos_write(const cmos_entry_t * e, const char value_str[],
42 unsigned long long *value);
43uint16_t cmos_checksum_read(void);
44void cmos_checksum_write(uint16_t checksum);
45uint16_t cmos_checksum_compute(void);
46void cmos_checksum_verify(void);
Stefan Reinauer6540ae52007-07-12 16:35:42 +000047
Stefan Reinauer90b96b62010-01-13 21:00:23 +000048#endif /* CMOS_OPS_H */