1 /*****************************************************************************\
4 *****************************************************************************
5 * Copyright (C) 2002-2005 The Regents of the University of California.
6 * Produced at the Lawrence Livermore National Laboratory.
7 * Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
11 * This file is part of nvramtool, a utility for reading/writing coreboot
12 * parameters and displaying information from the coreboot table.
13 * For details, see http://coreboot.org/nvramtool.
15 * Please also read the file DISCLAIMER which is included in this software
18 * This program is free software; you can redistribute it and/or modify it
19 * under the terms of the GNU General Public License (as published by the
20 * Free Software Foundation) version 2, dated June 1991.
22 * This program is distributed in the hope that it will be useful, but
23 * WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
25 * conditions of the GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License along
28 * with this program; if not, write to the Free Software Foundation, Inc.,
29 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
30 \*****************************************************************************/
36 #include "coreboot_tables.h"
38 #define LAYOUT_ENTRY_OVERLAP (LAYOUT_RESULT_START + 0)
39 #define LAYOUT_ENTRY_BAD_LENGTH (LAYOUT_RESULT_START + 1)
40 #define LAYOUT_DUPLICATE_ENUM (LAYOUT_RESULT_START + 2)
41 #define LAYOUT_SUMMED_AREA_START_NOT_ALIGNED (LAYOUT_RESULT_START + 3)
42 #define LAYOUT_SUMMED_AREA_END_NOT_ALIGNED (LAYOUT_RESULT_START + 4)
43 #define LAYOUT_CHECKSUM_LOCATION_NOT_ALIGNED (LAYOUT_RESULT_START + 5)
44 #define LAYOUT_INVALID_SUMMED_AREA (LAYOUT_RESULT_START + 6)
45 #define LAYOUT_CHECKSUM_OVERLAPS_SUMMED_AREA (LAYOUT_RESULT_START + 7)
46 #define LAYOUT_SUMMED_AREA_OUT_OF_RANGE (LAYOUT_RESULT_START + 8)
47 #define LAYOUT_CHECKSUM_LOCATION_OUT_OF_RANGE (LAYOUT_RESULT_START + 9)
56 /* This represents a CMOS parameter. */
60 cmos_entry_config_t config;
62 char name[CMOS_MAX_NAME_LENGTH];
66 /* This represents a possible value for a CMOS parameter of type
71 unsigned long long value;
72 char text[CMOS_MAX_TEXT_LENGTH];
76 /* This represents the location of the CMOS checksum and the area over which
77 * it is computed. Depending on the context, the values may be represented as
78 * either bit positions or byte positions.
81 { unsigned summed_area_start; /* first checksummed location */
82 unsigned summed_area_end; /* last checksummed location */
83 unsigned checksum_at; /* location of checksum */
85 cmos_checksum_layout_t;
87 extern const char checksum_param_name[];
89 extern unsigned cmos_checksum_start;
91 extern unsigned cmos_checksum_end;
93 extern unsigned cmos_checksum_index;
95 typedef void (*cmos_layout_get_fn_t) (void);
97 void register_cmos_layout_get_fn (cmos_layout_get_fn_t fn);
98 void get_cmos_layout (void);
99 int add_cmos_entry (const cmos_entry_t *e, const cmos_entry_t **conflict);
100 const cmos_entry_t * find_cmos_entry (const char name[]);
101 const cmos_entry_t * first_cmos_entry (void);
102 const cmos_entry_t * next_cmos_entry (const cmos_entry_t *last);
103 int add_cmos_enum (const cmos_enum_t *e);
104 const cmos_enum_t * find_cmos_enum (unsigned config_id,
105 unsigned long long value);
106 const cmos_enum_t * first_cmos_enum (void);
107 const cmos_enum_t * next_cmos_enum (const cmos_enum_t *last);
108 const cmos_enum_t * first_cmos_enum_id (unsigned config_id);
109 const cmos_enum_t * next_cmos_enum_id (const cmos_enum_t *last);
110 int is_checksum_name (const char name[]);
111 int checksum_layout_to_bytes (cmos_checksum_layout_t *layout);
112 void checksum_layout_to_bits (cmos_checksum_layout_t *layout);
114 #endif /* LAYOUT_H */