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                 0x20060707
  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 #define ACPI_MAX_NAMESPACE_CACHE_DEPTH  96      /* Namespace objects */
  85
  86 /*
  87  * Should the subsystem abort the loading of an ACPI table if the
  88  * table checksum is incorrect?
  89  */
  90 #define ACPI_CHECKSUM_ABORT             FALSE
  91
  92 /******************************************************************************
  93  *
  94  * Subsystem Constants
  95  *
  96  *****************************************************************************/
  97
  98 /* Version of ACPI supported */
  99
 100 #define ACPI_CA_SUPPORT_LEVEL           3
 101
 102 /* Maximum count for a semaphore object */
 103
 104 #define ACPI_MAX_SEMAPHORE_COUNT        256
 105
 106 /* Maximum object reference count (detects object deletion issues) */
 107
 108 #define ACPI_MAX_REFERENCE_COUNT        0x800
 109
 110 /* Size of cached memory mapping for system memory operation region */
 111
 112 #define ACPI_SYSMEM_REGION_WINDOW_SIZE  4096
 113
 114 /* owner_id tracking. 8 entries allows for 255 owner_ids */
 115
 116 #define ACPI_NUM_OWNERID_MASKS          8
 117
 118 /******************************************************************************
 119  *
 120  * ACPI Specification constants (Do not change unless the specification changes)
 121  *
 122  *****************************************************************************/
 123
 124 /* Number of distinct GPE register blocks and register width */
 125
 126 #define ACPI_MAX_GPE_BLOCKS             2
 127 #define ACPI_GPE_REGISTER_WIDTH         8
 128
 129 /* Method info (in WALK_STATE), containing local variables and argumetns */
 130
 131 #define ACPI_METHOD_NUM_LOCALS          8
 132 #define ACPI_METHOD_MAX_LOCAL           7
 133
 134 #define ACPI_METHOD_NUM_ARGS            7
 135 #define ACPI_METHOD_MAX_ARG             6
 136
 137 /* Length of _HID, _UID, _CID, and UUID values */
 138
 139 #define ACPI_DEVICE_ID_LENGTH           0x09
 140 #define ACPI_MAX_CID_LENGTH             48
 141 #define ACPI_UUID_LENGTH                16
 142
 143 /*
 144  * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
 145  */
 146 #define ACPI_OBJ_NUM_OPERANDS           8
 147 #define ACPI_OBJ_MAX_OPERAND            7
 148
 149 /* Names within the namespace are 4 bytes long */
 150
 151 #define ACPI_NAME_SIZE                  4
 152 #define ACPI_PATH_SEGMENT_LENGTH        5       /* 4 chars for name + 1 char for separator */
 153 #define ACPI_PATH_SEPARATOR             '.'
 154
 155 /* Constants used in searching for the RSDP in low memory */
 156
 157 #define ACPI_EBDA_PTR_LOCATION          0x0000040E      /* Physical Address */
 158 #define ACPI_EBDA_PTR_LENGTH            2
 159 #define ACPI_EBDA_WINDOW_SIZE           1024
 160 #define ACPI_HI_RSDP_WINDOW_BASE        0x000E0000      /* Physical Address */
 161 #define ACPI_HI_RSDP_WINDOW_SIZE        0x00020000
 162 #define ACPI_RSDP_SCAN_STEP             16
 163
 164 /* Operation regions */
 165
 166 #define ACPI_NUM_PREDEFINED_REGIONS     8
 167 #define ACPI_USER_REGION_BEGIN          0x80
 168
 169 /* Maximum space_ids for Operation Regions */
 170
 171 #define ACPI_MAX_ADDRESS_SPACE          255
 172
 173 /* Array sizes.  Used for range checking also */
 174
 175 #define ACPI_MAX_MATCH_OPCODE           5
 176
 177 /* RSDP checksums */
 178
 179 #define ACPI_RSDP_CHECKSUM_LENGTH       20
 180 #define ACPI_RSDP_XCHECKSUM_LENGTH      36
 181
 182 /* SMBus bidirectional buffer size */
 183
 184 #define ACPI_SMBUS_BUFFER_SIZE          34
 185
 186 /******************************************************************************
 187  *
 188  * ACPI AML Debugger
 189  *
 190  *****************************************************************************/
 191
 192 #define ACPI_DEBUGGER_MAX_ARGS          8       /* Must be max method args + 1 */
 193
 194 #define ACPI_DEBUGGER_COMMAND_PROMPT    '-'
 195 #define ACPI_DEBUGGER_EXECUTE_PROMPT    '%'
 196
 197 #endif                          /* _ACCONFIG_H */