Stefan Reinauer | 6540ae5 | 2007-07-12 16:35:42 +0000 | [diff] [blame] | 1 | /*****************************************************************************\ |
| 2 | * layout.h |
| 3 | * $Id: layout.h,v 1.2 2006/01/24 00:25:40 dsp_llnl Exp $ |
| 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>. |
| 8 | * UCRL-CODE-2003-012 |
| 9 | * All rights reserved. |
| 10 | * |
| 11 | * This file is part of lxbios, a utility for reading/writing LinuxBIOS |
| 12 | * parameters and displaying information from the LinuxBIOS table. |
| 13 | * For details, see <http://www.llnl.gov/linux/lxbios/>. |
| 14 | * |
| 15 | * Please also read the file DISCLAIMER which is included in this software |
| 16 | * distribution. |
| 17 | * |
| 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. |
| 21 | * |
| 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. |
| 26 | * |
| 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 | \*****************************************************************************/ |
| 31 | |
| 32 | #ifndef LXBIOS_LAYOUT_H |
| 33 | #define LXBIOS_LAYOUT_H |
| 34 | |
| 35 | #include "common.h" |
| 36 | #include "linuxbios_tables.h" |
| 37 | |
| 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) |
| 48 | |
| 49 | typedef enum |
| 50 | { CMOS_ENTRY_ENUM, |
| 51 | CMOS_ENTRY_HEX, |
| 52 | CMOS_ENTRY_RESERVED |
| 53 | } |
| 54 | cmos_entry_config_t; |
| 55 | |
| 56 | /* This represents a CMOS parameter. */ |
| 57 | typedef struct |
| 58 | { unsigned bit; |
| 59 | unsigned length; |
| 60 | cmos_entry_config_t config; |
| 61 | unsigned config_id; |
| 62 | char name[CMOS_MAX_NAME_LENGTH]; |
| 63 | } |
| 64 | cmos_entry_t; |
| 65 | |
| 66 | /* This represents a possible value for a CMOS parameter of type |
| 67 | * CMOS_ENTRY_ENUM. |
| 68 | */ |
| 69 | typedef struct |
| 70 | { unsigned config_id; |
| 71 | unsigned long long value; |
| 72 | char text[CMOS_MAX_TEXT_LENGTH]; |
| 73 | } |
| 74 | cmos_enum_t; |
| 75 | |
| 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. |
| 79 | */ |
| 80 | typedef struct |
| 81 | { unsigned summed_area_start; /* first checksummed location */ |
| 82 | unsigned summed_area_end; /* last checksummed location */ |
| 83 | unsigned checksum_at; /* location of checksum */ |
| 84 | } |
| 85 | cmos_checksum_layout_t; |
| 86 | |
| 87 | extern const char checksum_param_name[]; |
| 88 | |
| 89 | extern unsigned cmos_checksum_start; |
| 90 | |
| 91 | extern unsigned cmos_checksum_end; |
| 92 | |
| 93 | extern unsigned cmos_checksum_index; |
| 94 | |
| 95 | typedef void (*cmos_layout_get_fn_t) (void); |
| 96 | |
| 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); |
| 113 | |
| 114 | #endif /* LXBIOS_LAYOUT_H */ |