tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/******************************************************************************
2 *
3 * Name: acconfig.h - Global configuration constants
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2005, 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 *
50 * Configuration options
51 *
52 *****************************************************************************/
53
54/*
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.
59 *
60 * ACPI_APPLICATION - Use this switch if the subsystem is going to be run
61 * at the application level.
62 *
63 */
64
65/* Version string */
66
67#define ACPI_CA_VERSION 0x20050309
68
69/*
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.
76 */
77#define ACPI_OS_NAME "Microsoft Windows NT"
78
79/* Maximum objects in the various object caches */
80
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 */
86
87/*
88 * Should the subystem abort the loading of an ACPI table if the
89 * table checksum is incorrect?
90 */
91#define ACPI_CHECKSUM_ABORT FALSE
92
93
94/******************************************************************************
95 *
96 * Subsystem Constants
97 *
98 *****************************************************************************/
99
100/* Version of ACPI supported */
101
102#define ACPI_CA_SUPPORT_LEVEL 3
103
104/* String size constants */
105
106#define ACPI_MAX_STRING_LENGTH 512
107#define ACPI_PATHNAME_MAX 256 /* A full namespace pathname */
108
109/* Maximum count for a semaphore object */
110
111#define ACPI_MAX_SEMAPHORE_COUNT 256
112
113/* Max reference count (for debug only) */
114
115#define ACPI_MAX_REFERENCE_COUNT 0x400
116
117/* Size of cached memory mapping for system memory operation region */
118
119#define ACPI_SYSMEM_REGION_WINDOW_SIZE 4096
120
121
122/******************************************************************************
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
133/*
134 * Method info (in WALK_STATE), containing local variables and argumetns
135 */
136#define ACPI_METHOD_NUM_LOCALS 8
137#define ACPI_METHOD_MAX_LOCAL 7
138
139#define ACPI_METHOD_NUM_ARGS 7
140#define ACPI_METHOD_MAX_ARG 6
141
142/* Maximum length of resulting string when converting from a buffer */
143
144#define ACPI_MAX_STRING_CONVERSION 200
145
146/* Length of _HID, _UID, and _CID values */
147
148#define ACPI_DEVICE_ID_LENGTH 0x09
149#define ACPI_MAX_CID_LENGTH 48
150
151/*
152 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
153 */
154#define ACPI_OBJ_NUM_OPERANDS 8
155#define ACPI_OBJ_MAX_OPERAND 7
156
157/* Names within the namespace are 4 bytes long */
158
159#define ACPI_NAME_SIZE 4
160#define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
161#define ACPI_PATH_SEPARATOR '.'
162
163/* Constants used in searching for the RSDP in low memory */
164
165#define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
166#define ACPI_EBDA_PTR_LENGTH 2
167#define ACPI_EBDA_WINDOW_SIZE 1024
168#define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
169#define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
170#define ACPI_RSDP_SCAN_STEP 16
171
172/* Operation regions */
173
174#define ACPI_NUM_PREDEFINED_REGIONS 8
175#define ACPI_USER_REGION_BEGIN 0x80
176
177/* Maximum space_ids for Operation Regions */
178
179#define ACPI_MAX_ADDRESS_SPACE 255
180
181/* Array sizes. Used for range checking also */
182
183#define ACPI_NUM_ACCESS_TYPES 6
184#define ACPI_NUM_UPDATE_RULES 3
185#define ACPI_NUM_LOCK_RULES 2
186#define ACPI_NUM_MATCH_OPS 6
187#define ACPI_NUM_OPCODES 256
188#define ACPI_NUM_FIELD_NAMES 2
189
190/* RSDP checksums */
191
192#define ACPI_RSDP_CHECKSUM_LENGTH 20
193#define ACPI_RSDP_XCHECKSUM_LENGTH 36
194
195/* SMBus bidirectional buffer size */
196
197#define ACPI_SMBUS_BUFFER_SIZE 34
198
199/* Number of strings associated with the _OSI reserved method */
200
201#define ACPI_NUM_OSI_STRINGS 10
202
203
204/******************************************************************************
205 *
206 * ACPI AML Debugger
207 *
208 *****************************************************************************/
209
210#define ACPI_DEBUGGER_MAX_ARGS 8 /* Must be max method args + 1 */
211
212#define ACPI_DEBUGGER_COMMAND_PROMPT '-'
213#define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
214
215
216#endif /* _ACCONFIG_H */
217