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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/******************************************************************************
2 *
3 * Name: acconfig.h - Global configuration constants
4 *
5 *****************************************************************************/
6
7/*
Len Brown75a44ce2008-04-23 23:00:13 -04008 * Copyright (C) 2000 - 2008, Intel Corp.
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070047/******************************************************************************
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070064/*
65 * OS name, used for the _OS object. The _OS object is essentially obsolete,
66 * but there is a large base of ASL/AML code in existing machines that check
67 * for the string below. The use of this string usually guarantees that
68 * the ASL will execute down the most tested code path. Also, there is some
69 * code that will not execute the _OSI method unless _OS matches the string
70 * below. Therefore, change this string at your own risk.
71 */
72#define ACPI_OS_NAME "Microsoft Windows NT"
73
74/* Maximum objects in the various object caches */
75
Len Brown4be44fc2005-08-05 00:44:28 -040076#define ACPI_MAX_STATE_CACHE_DEPTH 96 /* State objects */
77#define ACPI_MAX_PARSE_CACHE_DEPTH 96 /* Parse tree objects */
78#define ACPI_MAX_EXTPARSE_CACHE_DEPTH 96 /* Parse tree objects */
79#define ACPI_MAX_OBJECT_CACHE_DEPTH 96 /* Interpreter operand objects */
Bob Moore616861242006-03-17 16:44:00 -050080#define ACPI_MAX_NAMESPACE_CACHE_DEPTH 96 /* Namespace objects */
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82/*
Bob Mooreb8e4d892006-01-27 16:43:00 -050083 * Should the subsystem abort the loading of an ACPI table if the
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 * table checksum is incorrect?
85 */
86#define ACPI_CHECKSUM_ABORT FALSE
87
Linus Torvalds1da177e2005-04-16 15:20:36 -070088/******************************************************************************
89 *
90 * Subsystem Constants
91 *
92 *****************************************************************************/
93
94/* Version of ACPI supported */
95
96#define ACPI_CA_SUPPORT_LEVEL 3
97
Linus Torvalds1da177e2005-04-16 15:20:36 -070098/* Maximum count for a semaphore object */
99
100#define ACPI_MAX_SEMAPHORE_COUNT 256
101
Bob Moore83135242006-10-03 00:00:00 -0400102/* Maximum object reference count (detects object deletion issues) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
Doug Chapman9a654b52006-12-21 12:11:43 -0500104#define ACPI_MAX_REFERENCE_COUNT 0x1000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105
106/* Size of cached memory mapping for system memory operation region */
107
108#define ACPI_SYSMEM_REGION_WINDOW_SIZE 4096
109
Bob Moore28f55eb2005-12-02 18:27:00 -0500110/* owner_id tracking. 8 entries allows for 255 owner_ids */
111
112#define ACPI_NUM_OWNERID_MASKS 8
113
Bob Mooref3d2e782007-02-02 19:48:18 +0300114/* Size of the root table array is increased by this increment */
115
116#define ACPI_ROOT_TABLE_SIZE_INCREMENT 4
117
Bob Moorefc374452008-11-12 15:15:29 +0800118/* Maximum number of While() loop iterations before forced abort */
119
120#define ACPI_MAX_LOOP_ITERATIONS 0xFFFF
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122/******************************************************************************
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
Robert Moore44f6c012005-04-18 22:49:35 -0400133/* Method info (in WALK_STATE), containing local variables and argumetns */
134
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135#define ACPI_METHOD_NUM_LOCALS 8
136#define ACPI_METHOD_MAX_LOCAL 7
137
138#define ACPI_METHOD_NUM_ARGS 7
139#define ACPI_METHOD_MAX_ARG 6
140
Bob Moorec51a4de2005-11-17 13:07:00 -0500141/* Length of _HID, _UID, _CID, and UUID values */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
143#define ACPI_DEVICE_ID_LENGTH 0x09
144#define ACPI_MAX_CID_LENGTH 48
Bob Moorec51a4de2005-11-17 13:07:00 -0500145#define ACPI_UUID_LENGTH 16
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146
147/*
148 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
149 */
150#define ACPI_OBJ_NUM_OPERANDS 8
151#define ACPI_OBJ_MAX_OPERAND 7
152
Bob Moore773069d2008-04-10 19:06:36 +0400153/* Number of elements in the Result Stack frame, can be an arbitrary value */
154
155#define ACPI_RESULTS_FRAME_OBJ_NUM 8
156
157/*
158 * Maximal number of elements the Result Stack can contain,
159 * it may be an arbitray value not exceeding the types of
160 * result_size and result_count (now u8).
161 */
162#define ACPI_RESULTS_OBJ_NUM_MAX 255
163
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164/* Names within the namespace are 4 bytes long */
165
166#define ACPI_NAME_SIZE 4
Len Brown4be44fc2005-08-05 00:44:28 -0400167#define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168#define ACPI_PATH_SEPARATOR '.'
169
Bob Mooref3d2e782007-02-02 19:48:18 +0300170/* Sizes for ACPI table headers */
171
Bob Moore0eaa14c2007-02-02 19:48:20 +0300172#define ACPI_OEM_ID_SIZE 6
173#define ACPI_OEM_TABLE_ID_SIZE 8
Bob Mooref3d2e782007-02-02 19:48:18 +0300174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175/* Constants used in searching for the RSDP in low memory */
176
Len Brown4be44fc2005-08-05 00:44:28 -0400177#define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178#define ACPI_EBDA_PTR_LENGTH 2
179#define ACPI_EBDA_WINDOW_SIZE 1024
Len Brown4be44fc2005-08-05 00:44:28 -0400180#define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181#define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
182#define ACPI_RSDP_SCAN_STEP 16
183
184/* Operation regions */
185
186#define ACPI_NUM_PREDEFINED_REGIONS 8
187#define ACPI_USER_REGION_BEGIN 0x80
188
189/* Maximum space_ids for Operation Regions */
190
191#define ACPI_MAX_ADDRESS_SPACE 255
192
193/* Array sizes. Used for range checking also */
194
Bob Moore4c90ece2006-06-08 16:29:00 -0400195#define ACPI_MAX_MATCH_OPCODE 5
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
197/* RSDP checksums */
198
199#define ACPI_RSDP_CHECKSUM_LENGTH 20
200#define ACPI_RSDP_XCHECKSUM_LENGTH 36
201
202/* SMBus bidirectional buffer size */
203
204#define ACPI_SMBUS_BUFFER_SIZE 34
205
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206/******************************************************************************
207 *
208 * ACPI AML Debugger
209 *
210 *****************************************************************************/
211
Len Brown4be44fc2005-08-05 00:44:28 -0400212#define ACPI_DEBUGGER_MAX_ARGS 8 /* Must be max method args + 1 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213
214#define ACPI_DEBUGGER_COMMAND_PROMPT '-'
215#define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
216
Len Brown4be44fc2005-08-05 00:44:28 -0400217#endif /* _ACCONFIG_H */