1 /*****************************************************************************\
3 *****************************************************************************
4 * Copyright (C) 2002-2005 The Regents of the University of California.
5 * Produced at the Lawrence Livermore National Laboratory.
6 * Written by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>.
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.
14 * Please also read the file DISCLAIMER which is included in this software
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.
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.
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 \*****************************************************************************/
35 #include "coreboot_tables.h"
37 #define LAYOUT_ENTRY_OVERLAP (LAYOUT_RESULT_START + 0)
38 #define LAYOUT_ENTRY_BAD_LENGTH (LAYOUT_RESULT_START + 1)
39 #define LAYOUT_DUPLICATE_ENUM (LAYOUT_RESULT_START + 2)
40 #define LAYOUT_SUMMED_AREA_START_NOT_ALIGNED (LAYOUT_RESULT_START + 3)
41 #define LAYOUT_SUMMED_AREA_END_NOT_ALIGNED (LAYOUT_RESULT_START + 4)
42 #define LAYOUT_CHECKSUM_LOCATION_NOT_ALIGNED (LAYOUT_RESULT_START + 5)
43 #define LAYOUT_INVALID_SUMMED_AREA (LAYOUT_RESULT_START + 6)
44 #define LAYOUT_CHECKSUM_OVERLAPS_SUMMED_AREA (LAYOUT_RESULT_START + 7)
45 #define LAYOUT_SUMMED_AREA_OUT_OF_RANGE (LAYOUT_RESULT_START + 8)
46 #define LAYOUT_CHECKSUM_LOCATION_OUT_OF_RANGE (LAYOUT_RESULT_START + 9)
53 } cmos_entry_config_t;
55 /* This represents a CMOS parameter. */
59 cmos_entry_config_t config;
61 char name[CMOS_MAX_NAME_LENGTH + 1];
64 /* This represents a possible value for a CMOS parameter of type
69 unsigned long long value;
70 char text[CMOS_MAX_TEXT_LENGTH + 1];
73 /* This represents the location of the CMOS checksum and the area over
74 * which it is computed. Depending on the context, the values may be
75 * represented as either bit positions or byte positions.
78 unsigned summed_area_start; /* first checksummed location */
79 unsigned summed_area_end; /* last checksummed location */
80 unsigned checksum_at; /* location of checksum */
81 } cmos_checksum_layout_t;
83 extern const char checksum_param_name[];
85 extern unsigned cmos_checksum_start;
87 extern unsigned cmos_checksum_end;
89 extern unsigned cmos_checksum_index;
91 typedef void (*cmos_layout_get_fn_t) (void);
93 void register_cmos_layout_get_fn(cmos_layout_get_fn_t fn);
94 void get_cmos_layout(void);
95 int add_cmos_entry(const cmos_entry_t * e, const cmos_entry_t ** conflict);
96 const cmos_entry_t *find_cmos_entry(const char name[]);
97 const cmos_entry_t *first_cmos_entry(void);
98 const cmos_entry_t *next_cmos_entry(const cmos_entry_t * last);
99 int add_cmos_enum(const cmos_enum_t * e);
100 const cmos_enum_t *find_cmos_enum(unsigned config_id, unsigned long long value);
101 const cmos_enum_t *first_cmos_enum(void);
102 const cmos_enum_t *next_cmos_enum(const cmos_enum_t * last);
103 const cmos_enum_t *first_cmos_enum_id(unsigned config_id);
104 const cmos_enum_t *next_cmos_enum_id(const cmos_enum_t * last);
105 int is_checksum_name(const char name[]);
106 int checksum_layout_to_bytes(cmos_checksum_layout_t * layout);
107 void checksum_layout_to_bits(cmos_checksum_layout_t * layout);
109 #endif /* LAYOUT_H */