include/acpi/acconfig.h

   1 /******************************************************************************
   2  *
   3  * Name: acconfig.h - Global configuration constants
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2006, 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  * Configuration options
  50  *
  51  *****************************************************************************/
  52
  53 /*
  54  * ACPI_DEBUG_OUTPUT    - This switch enables all the debug facilities of the
  55  *                        ACPI subsystem.  This includes the DEBUG_PRINT output
  56  *                        statements.  When disabled, all DEBUG_PRINT
  57  *                        statements are compiled out.
  58  *
  59  * ACPI_APPLICATION     - Use this switch if the subsystem is going to be run
  60  *                        at the application level.
  61  *
  62  */
  63
  64 /* Current ACPICA subsystem version in YYYYMMDD format */
  65
  66 #define ACPI_CA_VERSION                 0x20060127
  67
  68 /*
  69  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
  70  * but there is a large base of ASL/AML code in existing machines that check
  71  * for the string below.  The use of this string usually guarantees that
  72  * the ASL will execute down the most tested code path.  Also, there is some
  73  * code that will not execute the _OSI method unless _OS matches the string
  74  * below.  Therefore, change this string at your own risk.
  75  */
  76 #define ACPI_OS_NAME                    "Microsoft Windows NT"
  77
  78 /* Maximum objects in the various object caches */
  79
  80 #define ACPI_MAX_STATE_CACHE_DEPTH      96      /* State objects */
  81 #define ACPI_MAX_PARSE_CACHE_DEPTH      96      /* Parse tree objects */
  82 #define ACPI_MAX_EXTPARSE_CACHE_DEPTH   96      /* Parse tree objects */
  83 #define ACPI_MAX_OBJECT_CACHE_DEPTH     96      /* Interpreter operand objects */
  84
  85 /*
  86  * Should the subsystem abort the loading of an ACPI table if the
  87  * table checksum is incorrect?
  88  */
  89 #define ACPI_CHECKSUM_ABORT             FALSE
  90
  91 /******************************************************************************
  92  *
  93  * Subsystem Constants
  94  *
  95  *****************************************************************************/
  96
  97 /* Version of ACPI supported */
  98
  99 #define ACPI_CA_SUPPORT_LEVEL           3
 100
 101 /* Maximum count for a semaphore object */
 102
 103 #define ACPI_MAX_SEMAPHORE_COUNT        256
 104
 105 /* Max reference count (for debug only) */
 106
 107 #define ACPI_MAX_REFERENCE_COUNT        0x400
 108
 109 /* Size of cached memory mapping for system memory operation region */
 110
 111 #define ACPI_SYSMEM_REGION_WINDOW_SIZE  4096
 112
 113 /* owner_id tracking. 8 entries allows for 255 owner_ids */
 114
 115 #define ACPI_NUM_OWNERID_MASKS          8
 116
 117 /******************************************************************************
 118  *
 119  * ACPI Specification constants (Do not change unless the specification changes)
 120  *
 121  *****************************************************************************/
 122
 123 /* Number of distinct GPE register blocks and register width */
 124
 125 #define ACPI_MAX_GPE_BLOCKS             2
 126 #define ACPI_GPE_REGISTER_WIDTH         8
 127
 128 /* Method info (in WALK_STATE), containing local variables and argumetns */
 129
 130 #define ACPI_METHOD_NUM_LOCALS          8
 131 #define ACPI_METHOD_MAX_LOCAL           7
 132
 133 #define ACPI_METHOD_NUM_ARGS            7
 134 #define ACPI_METHOD_MAX_ARG             6
 135
 136 /* Length of _HID, _UID, _CID, and UUID values */
 137
 138 #define ACPI_DEVICE_ID_LENGTH           0x09
 139 #define ACPI_MAX_CID_LENGTH             48
 140 #define ACPI_UUID_LENGTH                16
 141
 142 /*
 143  * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
 144  */
 145 #define ACPI_OBJ_NUM_OPERANDS           8
 146 #define ACPI_OBJ_MAX_OPERAND            7
 147
 148 /* Names within the namespace are 4 bytes long */
 149
 150 #define ACPI_NAME_SIZE                  4
 151 #define ACPI_PATH_SEGMENT_LENGTH        5       /* 4 chars for name + 1 char for separator */
 152 #define ACPI_PATH_SEPARATOR             '.'
 153
 154 /* Constants used in searching for the RSDP in low memory */
 155
 156 #define ACPI_EBDA_PTR_LOCATION          0x0000040E      /* Physical Address */
 157 #define ACPI_EBDA_PTR_LENGTH            2
 158 #define ACPI_EBDA_WINDOW_SIZE           1024
 159 #define ACPI_HI_RSDP_WINDOW_BASE        0x000E0000      /* Physical Address */
 160 #define ACPI_HI_RSDP_WINDOW_SIZE        0x00020000
 161 #define ACPI_RSDP_SCAN_STEP             16
 162
 163 /* Operation regions */
 164
 165 #define ACPI_NUM_PREDEFINED_REGIONS     8
 166 #define ACPI_USER_REGION_BEGIN          0x80
 167
 168 /* Maximum space_ids for Operation Regions */
 169
 170 #define ACPI_MAX_ADDRESS_SPACE          255
 171
 172 /* Array sizes.  Used for range checking also */
 173
 174 #define ACPI_NUM_ACCESS_TYPES           6
 175 #define ACPI_NUM_UPDATE_RULES           3
 176 #define ACPI_NUM_LOCK_RULES             2
 177 #define ACPI_NUM_MATCH_OPS              6
 178 #define ACPI_NUM_OPCODES                256
 179 #define ACPI_NUM_FIELD_NAMES            2
 180
 181 /* RSDP checksums */
 182
 183 #define ACPI_RSDP_CHECKSUM_LENGTH       20
 184 #define ACPI_RSDP_XCHECKSUM_LENGTH      36
 185
 186 /* SMBus bidirectional buffer size */
 187
 188 #define ACPI_SMBUS_BUFFER_SIZE          34
 189
 190 /* Number of strings associated with the _OSI reserved method */
 191
 192 #define ACPI_NUM_OSI_STRINGS            10
 193
 194 /******************************************************************************
 195  *
 196  * ACPI AML Debugger
 197  *
 198  *****************************************************************************/
 199
 200 #define ACPI_DEBUGGER_MAX_ARGS          8       /* Must be max method args + 1 */
 201
 202 #define ACPI_DEBUGGER_COMMAND_PROMPT    '-'
 203 #define ACPI_DEBUGGER_EXECUTE_PROMPT    '%'
 204
 205 #endif                          /* _ACCONFIG_H */