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1/******************************************************************************
2 *
3 * Name: acconfig.h - Global configuration constants
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2011, Intel Corp.
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/*
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
76#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 */
80#define ACPI_MAX_NAMESPACE_CACHE_DEPTH 96 /* Namespace objects */
81
82/*
83 * Should the subsystem abort the loading of an ACPI table if the
84 * table checksum is incorrect?
85 */
86#define ACPI_CHECKSUM_ABORT FALSE
87
88/******************************************************************************
89 *
90 * Subsystem Constants
91 *
92 *****************************************************************************/
93
94/* Version of ACPI supported */
95
96#define ACPI_CA_SUPPORT_LEVEL 3
97
98/* Maximum count for a semaphore object */
99
100#define ACPI_MAX_SEMAPHORE_COUNT 256
101
102/* Maximum object reference count (detects object deletion issues) */
103
104#define ACPI_MAX_REFERENCE_COUNT 0x1000
105
106/* Default page size for use in mapping memory for operation regions */
107
108#define ACPI_DEFAULT_PAGE_SIZE 4096 /* Must be power of 2 */
109
110/* owner_id tracking. 8 entries allows for 255 owner_ids */
111
112#define ACPI_NUM_OWNERID_MASKS 8
113
114/* Size of the root table array is increased by this increment */
115
116#define ACPI_ROOT_TABLE_SIZE_INCREMENT 4
117
118/* Maximum number of While() loop iterations before forced abort */
119
120#define ACPI_MAX_LOOP_ITERATIONS 0xFFFF
121
122/* Maximum sleep allowed via Sleep() operator */
123
124#define ACPI_MAX_SLEEP 2000 /* Two seconds */
125
126/******************************************************************************
127 *
128 * ACPI Specification constants (Do not change unless the specification changes)
129 *
130 *****************************************************************************/
131
132/* Number of distinct GPE register blocks and register width */
133
134#define ACPI_MAX_GPE_BLOCKS 2
135#define ACPI_GPE_REGISTER_WIDTH 8
136
137/* Method info (in WALK_STATE), containing local variables and argumetns */
138
139#define ACPI_METHOD_NUM_LOCALS 8
140#define ACPI_METHOD_MAX_LOCAL 7
141
142#define ACPI_METHOD_NUM_ARGS 7
143#define ACPI_METHOD_MAX_ARG 6
144
145/* Length of _HID, _UID, _CID, and UUID values */
146
147#define ACPI_DEVICE_ID_LENGTH 0x09
148#define ACPI_MAX_CID_LENGTH 48
149#define ACPI_UUID_LENGTH 16
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/* Number of elements in the Result Stack frame, can be an arbitrary value */
158
159#define ACPI_RESULTS_FRAME_OBJ_NUM 8
160
161/*
162 * Maximal number of elements the Result Stack can contain,
163 * it may be an arbitray value not exceeding the types of
164 * result_size and result_count (now u8).
165 */
166#define ACPI_RESULTS_OBJ_NUM_MAX 255
167
168/* Names within the namespace are 4 bytes long */
169
170#define ACPI_NAME_SIZE 4
171#define ACPI_PATH_SEGMENT_LENGTH 5 /* 4 chars for name + 1 char for separator */
172#define ACPI_PATH_SEPARATOR '.'
173
174/* Sizes for ACPI table headers */
175
176#define ACPI_OEM_ID_SIZE 6
177#define ACPI_OEM_TABLE_ID_SIZE 8
178
179/* Constants used in searching for the RSDP in low memory */
180
181#define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
182#define ACPI_EBDA_PTR_LENGTH 2
183#define ACPI_EBDA_WINDOW_SIZE 1024
184#define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
185#define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
186#define ACPI_RSDP_SCAN_STEP 16
187
188/* Operation regions */
189
190#define ACPI_USER_REGION_BEGIN 0x80
191
192/* Maximum space_ids for Operation Regions */
193
194#define ACPI_MAX_ADDRESS_SPACE 255
195
196/* Array sizes. Used for range checking also */
197
198#define ACPI_MAX_MATCH_OPCODE 5
199
200/* RSDP checksums */
201
202#define ACPI_RSDP_CHECKSUM_LENGTH 20
203#define ACPI_RSDP_XCHECKSUM_LENGTH 36
204
205/* SMBus and IPMI bidirectional buffer size */
206
207#define ACPI_SMBUS_BUFFER_SIZE 34
208#define ACPI_IPMI_BUFFER_SIZE 66
209
210/* _sx_d and _sx_w control methods */
211
212#define ACPI_NUM_sx_d_METHODS 4
213#define ACPI_NUM_sx_w_METHODS 5
214
215/******************************************************************************
216 *
217 * ACPI AML Debugger
218 *
219 *****************************************************************************/
220
221#define ACPI_DEBUGGER_MAX_ARGS 8 /* Must be max method args + 1 */
222
223#define ACPI_DEBUGGER_COMMAND_PROMPT '-'
224#define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
225
226#endif /* _ACCONFIG_H */