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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.
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27 * GNU General Public License ("GPL") version 2 as published by the Free
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48 /******************************************************************************
50 * Configuration options
52 *****************************************************************************/
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.
60 * ACPI_APPLICATION - Use this switch if the subsystem is going to be run
61 * at the application level.
67 #define ACPI_CA_VERSION 0x20050408
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.
77 #define ACPI_OS_NAME "Microsoft Windows NT"
79 /* Maximum objects in the various object caches */
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 */
88 * Should the subystem abort the loading of an ACPI table if the
89 * table checksum is incorrect?
91 #define ACPI_CHECKSUM_ABORT FALSE
94 /******************************************************************************
98 *****************************************************************************/
100 /* Version of ACPI supported */
102 #define ACPI_CA_SUPPORT_LEVEL 3
104 /* String size constants */
106 #define ACPI_MAX_STRING_LENGTH 512
107 #define ACPI_PATHNAME_MAX 256 /* A full namespace pathname */
109 /* Maximum count for a semaphore object */
111 #define ACPI_MAX_SEMAPHORE_COUNT 256
113 /* Max reference count (for debug only) */
115 #define ACPI_MAX_REFERENCE_COUNT 0x400
117 /* Size of cached memory mapping for system memory operation region */
119 #define ACPI_SYSMEM_REGION_WINDOW_SIZE 4096
122 /******************************************************************************
124 * ACPI Specification constants (Do not change unless the specification changes)
126 *****************************************************************************/
128 /* Number of distinct GPE register blocks and register width */
130 #define ACPI_MAX_GPE_BLOCKS 2
131 #define ACPI_GPE_REGISTER_WIDTH 8
133 /* Method info (in WALK_STATE), containing local variables and argumetns */
135 #define ACPI_METHOD_NUM_LOCALS 8
136 #define ACPI_METHOD_MAX_LOCAL 7
138 #define ACPI_METHOD_NUM_ARGS 7
139 #define ACPI_METHOD_MAX_ARG 6
141 /* Maximum length of resulting string when converting from a buffer */
143 #define ACPI_MAX_STRING_CONVERSION 200
145 /* Length of _HID, _UID, and _CID values */
147 #define ACPI_DEVICE_ID_LENGTH 0x09
148 #define ACPI_MAX_CID_LENGTH 48
151 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
153 #define ACPI_OBJ_NUM_OPERANDS 8
154 #define ACPI_OBJ_MAX_OPERAND 7
156 /* Names within the namespace are 4 bytes long */
158 #define ACPI_NAME_SIZE 4
159 #define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
160 #define ACPI_PATH_SEPARATOR '.'
162 /* Constants used in searching for the RSDP in low memory */
164 #define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
165 #define ACPI_EBDA_PTR_LENGTH 2
166 #define ACPI_EBDA_WINDOW_SIZE 1024
167 #define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
168 #define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
169 #define ACPI_RSDP_SCAN_STEP 16
171 /* Operation regions */
173 #define ACPI_NUM_PREDEFINED_REGIONS 8
174 #define ACPI_USER_REGION_BEGIN 0x80
176 /* Maximum space_ids for Operation Regions */
178 #define ACPI_MAX_ADDRESS_SPACE 255
180 /* Array sizes. Used for range checking also */
182 #define ACPI_NUM_ACCESS_TYPES 6
183 #define ACPI_NUM_UPDATE_RULES 3
184 #define ACPI_NUM_LOCK_RULES 2
185 #define ACPI_NUM_MATCH_OPS 6
186 #define ACPI_NUM_OPCODES 256
187 #define ACPI_NUM_FIELD_NAMES 2
191 #define ACPI_RSDP_CHECKSUM_LENGTH 20
192 #define ACPI_RSDP_XCHECKSUM_LENGTH 36
194 /* SMBus bidirectional buffer size */
196 #define ACPI_SMBUS_BUFFER_SIZE 34
198 /* Number of strings associated with the _OSI reserved method */
200 #define ACPI_NUM_OSI_STRINGS 10
203 /******************************************************************************
207 *****************************************************************************/
209 #define ACPI_DEBUGGER_MAX_ARGS 8 /* Must be max method args + 1 */
211 #define ACPI_DEBUGGER_COMMAND_PROMPT '-'
212 #define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
215 #endif /* _ACCONFIG_H */