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/*****************************************************************************\
* layout.h
* $Id$
*****************************************************************************
* Copyright (C) 2002-2005 The Regents of the University of California.
* Produced at the Lawrence Livermore National Laboratory.
* Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
* UCRL-CODE-2003-012
* All rights reserved.
*
* This file is part of lxbios, a utility for reading/writing coreboot
* parameters and displaying information from the coreboot table.
* For details, see http://coreboot.org/Lxbios.
*
* Please also read the file DISCLAIMER which is included in this software
* distribution.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (as published by the
* Free Software Foundation) version 2, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
* conditions of the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
\*****************************************************************************/
#ifndef LXBIOS_LAYOUT_H
#define LXBIOS_LAYOUT_H
#include "common.h"
#include "coreboot_tables.h"
#define LAYOUT_ENTRY_OVERLAP (LAYOUT_RESULT_START + 0)
#define LAYOUT_ENTRY_BAD_LENGTH (LAYOUT_RESULT_START + 1)
#define LAYOUT_DUPLICATE_ENUM (LAYOUT_RESULT_START + 2)
#define LAYOUT_SUMMED_AREA_START_NOT_ALIGNED (LAYOUT_RESULT_START + 3)
#define LAYOUT_SUMMED_AREA_END_NOT_ALIGNED (LAYOUT_RESULT_START + 4)
#define LAYOUT_CHECKSUM_LOCATION_NOT_ALIGNED (LAYOUT_RESULT_START + 5)
#define LAYOUT_INVALID_SUMMED_AREA (LAYOUT_RESULT_START + 6)
#define LAYOUT_CHECKSUM_OVERLAPS_SUMMED_AREA (LAYOUT_RESULT_START + 7)
#define LAYOUT_SUMMED_AREA_OUT_OF_RANGE (LAYOUT_RESULT_START + 8)
#define LAYOUT_CHECKSUM_LOCATION_OUT_OF_RANGE (LAYOUT_RESULT_START + 9)
typedef enum
{ CMOS_ENTRY_ENUM,
CMOS_ENTRY_HEX,
CMOS_ENTRY_RESERVED
}
cmos_entry_config_t;
/* This represents a CMOS parameter. */
typedef struct
{ unsigned bit;
unsigned length;
cmos_entry_config_t config;
unsigned config_id;
char name[CMOS_MAX_NAME_LENGTH];
}
cmos_entry_t;
/* This represents a possible value for a CMOS parameter of type
* CMOS_ENTRY_ENUM.
*/
typedef struct
{ unsigned config_id;
unsigned long long value;
char text[CMOS_MAX_TEXT_LENGTH];
}
cmos_enum_t;
/* This represents the location of the CMOS checksum and the area over which
* it is computed. Depending on the context, the values may be represented as
* either bit positions or byte positions.
*/
typedef struct
{ unsigned summed_area_start; /* first checksummed location */
unsigned summed_area_end; /* last checksummed location */
unsigned checksum_at; /* location of checksum */
}
cmos_checksum_layout_t;
extern const char checksum_param_name[];
extern unsigned cmos_checksum_start;
extern unsigned cmos_checksum_end;
extern unsigned cmos_checksum_index;
typedef void (*cmos_layout_get_fn_t) (void);
void register_cmos_layout_get_fn (cmos_layout_get_fn_t fn);
void get_cmos_layout (void);
int add_cmos_entry (const cmos_entry_t *e, const cmos_entry_t **conflict);
const cmos_entry_t * find_cmos_entry (const char name[]);
const cmos_entry_t * first_cmos_entry (void);
const cmos_entry_t * next_cmos_entry (const cmos_entry_t *last);
int add_cmos_enum (const cmos_enum_t *e);
const cmos_enum_t * find_cmos_enum (unsigned config_id,
unsigned long long value);
const cmos_enum_t * first_cmos_enum (void);
const cmos_enum_t * next_cmos_enum (const cmos_enum_t *last);
const cmos_enum_t * first_cmos_enum_id (unsigned config_id);
const cmos_enum_t * next_cmos_enum_id (const cmos_enum_t *last);
int is_checksum_name (const char name[]);
int checksum_layout_to_bytes (cmos_checksum_layout_t *layout);
void checksum_layout_to_bits (cmos_checksum_layout_t *layout);
#endif /* LXBIOS_LAYOUT_H */
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