LXR coreboot/util/nvramtool/cmos

   1/*****************************************************************************\
   2 * cmos_ops.h
   3 *****************************************************************************
   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 *
  10 *  This file is part of nvramtool, a utility for reading/writing coreboot
  11 *  parameters and displaying information from the coreboot table.
  12 *  For details, see http://coreboot.org/nvramtool.
  13 *
  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.
  25 *
  26 *  You should have received a copy of the GNU General Public License along
  27 *  with this program; if not, write to the Free Software Foundation, Inc.,
  28 *  51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  29\*****************************************************************************/
  30
  31#ifndef CMOS_OPS_H
  32#define CMOS_OPS_H
  33
  34#include "common.h"
  35#include "layout.h"
  36
  37#define CMOS_OP_BAD_ENUM_VALUE (CMOS_OP_RESULT_START + 0)
  38#define CMOS_OP_NEGATIVE_INT (CMOS_OP_RESULT_START + 1)
  39#define CMOS_OP_INVALID_INT (CMOS_OP_RESULT_START + 2)
  40#define CMOS_OP_RESERVED (CMOS_OP_RESULT_START + 3)
  41#define CMOS_OP_VALUE_TOO_WIDE (CMOS_OP_RESULT_START + 4)
  42#define CMOS_OP_NO_MATCHING_ENUM (CMOS_OP_RESULT_START + 5)
  43
  44int prepare_cmos_read(const cmos_entry_t * e);
  45int prepare_cmos_write(const cmos_entry_t * e, const char value_str[],
  46                       unsigned long long *value);
  47uint16_t cmos_checksum_read(void);
  48void cmos_checksum_write(uint16_t checksum);
  49uint16_t cmos_checksum_compute(void);
  50void cmos_checksum_verify(void);
  51
  52#endif                          /* CMOS_OPS_H */
  53