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1 /******************************************************************************
3 * Name: acconfig.h - Global configuration constants
5 *****************************************************************************/
8 * Copyright (C) 2000 - 2005, R. Byron Moore
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12 * modification, are permitted provided that the following conditions
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23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
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
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32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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47 /******************************************************************************
49 * Configuration options
51 *****************************************************************************/
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.
59 * ACPI_APPLICATION - Use this switch if the subsystem is going to be run
60 * at the application level.
66 #define ACPI_CA_VERSION 0x20050902
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.
76 #define ACPI_OS_NAME "Microsoft Windows NT"
78 /* Maximum objects in the various object caches */
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 */
86 * Should the subystem abort the loading of an ACPI table if the
87 * table checksum is incorrect?
89 #define ACPI_CHECKSUM_ABORT FALSE
91 /******************************************************************************
95 *****************************************************************************/
97 /* Version of ACPI supported */
99 #define ACPI_CA_SUPPORT_LEVEL 3
101 /* String size constants */
103 #define ACPI_MAX_STRING_LENGTH 512
104 #define ACPI_PATHNAME_MAX 256 /* A full namespace pathname */
106 /* Maximum count for a semaphore object */
108 #define ACPI_MAX_SEMAPHORE_COUNT 256
110 /* Max reference count (for debug only) */
112 #define ACPI_MAX_REFERENCE_COUNT 0x400
114 /* Size of cached memory mapping for system memory operation region */
116 #define ACPI_SYSMEM_REGION_WINDOW_SIZE 4096
118 /******************************************************************************
120 * ACPI Specification constants (Do not change unless the specification changes)
122 *****************************************************************************/
124 /* Number of distinct GPE register blocks and register width */
126 #define ACPI_MAX_GPE_BLOCKS 2
127 #define ACPI_GPE_REGISTER_WIDTH 8
129 /* Method info (in WALK_STATE), containing local variables and argumetns */
131 #define ACPI_METHOD_NUM_LOCALS 8
132 #define ACPI_METHOD_MAX_LOCAL 7
134 #define ACPI_METHOD_NUM_ARGS 7
135 #define ACPI_METHOD_MAX_ARG 6
137 /* Maximum length of resulting string when converting from a buffer */
139 #define ACPI_MAX_STRING_CONVERSION 200
141 /* Length of _HID, _UID, and _CID values */
143 #define ACPI_DEVICE_ID_LENGTH 0x09
144 #define ACPI_MAX_CID_LENGTH 48
147 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
149 #define ACPI_OBJ_NUM_OPERANDS 8
150 #define ACPI_OBJ_MAX_OPERAND 7
152 /* Names within the namespace are 4 bytes long */
154 #define ACPI_NAME_SIZE 4
155 #define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
156 #define ACPI_PATH_SEPARATOR '.'
158 /* Constants used in searching for the RSDP in low memory */
160 #define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
161 #define ACPI_EBDA_PTR_LENGTH 2
162 #define ACPI_EBDA_WINDOW_SIZE 1024
163 #define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
164 #define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
165 #define ACPI_RSDP_SCAN_STEP 16
167 /* Operation regions */
169 #define ACPI_NUM_PREDEFINED_REGIONS 8
170 #define ACPI_USER_REGION_BEGIN 0x80
172 /* Maximum space_ids for Operation Regions */
174 #define ACPI_MAX_ADDRESS_SPACE 255
176 /* Array sizes. Used for range checking also */
178 #define ACPI_NUM_ACCESS_TYPES 6
179 #define ACPI_NUM_UPDATE_RULES 3
180 #define ACPI_NUM_LOCK_RULES 2
181 #define ACPI_NUM_MATCH_OPS 6
182 #define ACPI_NUM_OPCODES 256
183 #define ACPI_NUM_FIELD_NAMES 2
187 #define ACPI_RSDP_CHECKSUM_LENGTH 20
188 #define ACPI_RSDP_XCHECKSUM_LENGTH 36
190 /* SMBus bidirectional buffer size */
192 #define ACPI_SMBUS_BUFFER_SIZE 34
194 /* Number of strings associated with the _OSI reserved method */
196 #define ACPI_NUM_OSI_STRINGS 10
198 /******************************************************************************
202 *****************************************************************************/
204 #define ACPI_DEBUGGER_MAX_ARGS 8 /* Must be max method args + 1 */
206 #define ACPI_DEBUGGER_COMMAND_PROMPT '-'
207 #define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
209 #endif /* _ACCONFIG_H */