include/acpi/acconfig.h

   1 /******************************************************************************
   2  *
   3  * Name: acconfig.h - Global configuration constants
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2005, R. Byron Moore
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #ifndef _ACCONFIG_H
  45 #define _ACCONFIG_H
  46
  47
  48 /******************************************************************************
  49  *
  50  * Configuration options
  51  *
  52  *****************************************************************************/
  53
  54 /*
  55  * ACPI_DEBUG_OUTPUT    - This switch enables all the debug facilities of the
  56  *                        ACPI subsystem.  This includes the DEBUG_PRINT output
  57  *                        statements.  When disabled, all DEBUG_PRINT
  58  *                        statements are compiled out.
  59  *
  60  * ACPI_APPLICATION     - Use this switch if the subsystem is going to be run
  61  *                        at the application level.
  62  *
  63  */
  64
  65 /* Version string */
  66
  67 #define ACPI_CA_VERSION                 0x20050309
  68
  69 /*
  70  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
  71  * but there is a large base of ASL/AML code in existing machines that check
  72  * for the string below.  The use of this string usually guarantees that
  73  * the ASL will execute down the most tested code path.  Also, there is some
  74  * code that will not execute the _OSI method unless _OS matches the string
  75  * below.  Therefore, change this string at your own risk.
  76  */
  77 #define ACPI_OS_NAME                    "Microsoft Windows NT"
  78
  79 /* Maximum objects in the various object caches */
  80
  81 #define ACPI_MAX_STATE_CACHE_DEPTH      64          /* State objects */
  82 #define ACPI_MAX_PARSE_CACHE_DEPTH      96          /* Parse tree objects */
  83 #define ACPI_MAX_EXTPARSE_CACHE_DEPTH   64          /* Parse tree objects */
  84 #define ACPI_MAX_OBJECT_CACHE_DEPTH     64          /* Interpreter operand objects */
  85 #define ACPI_MAX_WALK_CACHE_DEPTH       4           /* Objects for parse tree walks */
  86
  87 /*
  88  * Should the subystem abort the loading of an ACPI table if the
  89  * table checksum is incorrect?
  90  */
  91 #define ACPI_CHECKSUM_ABORT             FALSE
  92
  93
  94 /******************************************************************************
  95  *
  96  * Subsystem Constants
  97  *
  98  *****************************************************************************/
  99
 100 /* Version of ACPI supported */
 101
 102 #define ACPI_CA_SUPPORT_LEVEL           3
 103
 104 /* String size constants */
 105
 106 #define ACPI_MAX_STRING_LENGTH          512
 107 #define ACPI_PATHNAME_MAX               256         /* A full namespace pathname */
 108
 109 /* Maximum count for a semaphore object */
 110
 111 #define ACPI_MAX_SEMAPHORE_COUNT        256
 112
 113 /* Max reference count (for debug only) */
 114
 115 #define ACPI_MAX_REFERENCE_COUNT        0x400
 116
 117 /* Size of cached memory mapping for system memory operation region */
 118
 119 #define ACPI_SYSMEM_REGION_WINDOW_SIZE  4096
 120
 121
 122 /******************************************************************************
 123  *
 124  * ACPI Specification constants (Do not change unless the specification changes)
 125  *
 126  *****************************************************************************/
 127
 128 /* Number of distinct GPE register blocks and register width */
 129
 130 #define ACPI_MAX_GPE_BLOCKS             2
 131 #define ACPI_GPE_REGISTER_WIDTH         8
 132
 133 /*
 134  * Method info (in WALK_STATE), containing local variables and argumetns
 135  */
 136 #define ACPI_METHOD_NUM_LOCALS          8
 137 #define ACPI_METHOD_MAX_LOCAL           7
 138
 139 #define ACPI_METHOD_NUM_ARGS            7
 140 #define ACPI_METHOD_MAX_ARG             6
 141
 142 /* Maximum length of resulting string when converting from a buffer */
 143
 144 #define ACPI_MAX_STRING_CONVERSION      200
 145
 146 /* Length of _HID, _UID, and _CID values */
 147
 148 #define ACPI_DEVICE_ID_LENGTH           0x09
 149 #define ACPI_MAX_CID_LENGTH             48
 150
 151 /*
 152  * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
 153  */
 154 #define ACPI_OBJ_NUM_OPERANDS           8
 155 #define ACPI_OBJ_MAX_OPERAND            7
 156
 157 /* Names within the namespace are 4 bytes long */
 158
 159 #define ACPI_NAME_SIZE                  4
 160 #define ACPI_PATH_SEGMENT_LENGTH        5           /* 4 chars for name + 1 char for separator */
 161 #define ACPI_PATH_SEPARATOR             '.'
 162
 163 /* Constants used in searching for the RSDP in low memory */
 164
 165 #define ACPI_EBDA_PTR_LOCATION          0x0000040E     /* Physical Address */
 166 #define ACPI_EBDA_PTR_LENGTH            2
 167 #define ACPI_EBDA_WINDOW_SIZE           1024
 168 #define ACPI_HI_RSDP_WINDOW_BASE        0x000E0000     /* Physical Address */
 169 #define ACPI_HI_RSDP_WINDOW_SIZE        0x00020000
 170 #define ACPI_RSDP_SCAN_STEP             16
 171
 172 /* Operation regions */
 173
 174 #define ACPI_NUM_PREDEFINED_REGIONS     8
 175 #define ACPI_USER_REGION_BEGIN          0x80
 176
 177 /* Maximum space_ids for Operation Regions */
 178
 179 #define ACPI_MAX_ADDRESS_SPACE          255
 180
 181 /* Array sizes.  Used for range checking also */
 182
 183 #define ACPI_NUM_ACCESS_TYPES           6
 184 #define ACPI_NUM_UPDATE_RULES           3
 185 #define ACPI_NUM_LOCK_RULES             2
 186 #define ACPI_NUM_MATCH_OPS              6
 187 #define ACPI_NUM_OPCODES                256
 188 #define ACPI_NUM_FIELD_NAMES            2
 189
 190 /* RSDP checksums */
 191
 192 #define ACPI_RSDP_CHECKSUM_LENGTH       20
 193 #define ACPI_RSDP_XCHECKSUM_LENGTH      36
 194
 195 /* SMBus bidirectional buffer size */
 196
 197 #define ACPI_SMBUS_BUFFER_SIZE          34
 198
 199 /* Number of strings associated with the _OSI reserved method */
 200
 201 #define ACPI_NUM_OSI_STRINGS            10
 202
 203
 204 /******************************************************************************
 205  *
 206  * ACPI AML Debugger
 207  *
 208  *****************************************************************************/
 209
 210 #define ACPI_DEBUGGER_MAX_ARGS          8  /* Must be max method args + 1 */
 211
 212 #define ACPI_DEBUGGER_COMMAND_PROMPT    '-'
 213 #define ACPI_DEBUGGER_EXECUTE_PROMPT    '%'
 214
 215
 216 #endif /* _ACCONFIG_H */
 217