1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /******************************************************************************
3  *
4  * Name: acconfig.h - Global configuration constants
5  *
6  * Copyright (C) 2000 - 2018, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #ifndef _ACCONFIG_H
11 #define _ACCONFIG_H
12 
13 /******************************************************************************
14  *
15  * Configuration options
16  *
17  *****************************************************************************/
18 
19 /*
20  * ACPI_DEBUG_OUTPUT    - This switch enables all the debug facilities of the
21  *                        ACPI subsystem.  This includes the DEBUG_PRINT output
22  *                        statements.  When disabled, all DEBUG_PRINT
23  *                        statements are compiled out.
24  *
25  * ACPI_APPLICATION     - Use this switch if the subsystem is going to be run
26  *                        at the application level.
27  *
28  */
29 
30 /*
31  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
32  * but there is a large base of ASL/AML code in existing machines that check
33  * for the string below.  The use of this string usually guarantees that
34  * the ASL will execute down the most tested code path.  Also, there is some
35  * code that will not execute the _OSI method unless _OS matches the string
36  * below.  Therefore, change this string at your own risk.
37  */
38 #define ACPI_OS_NAME                    "Microsoft Windows NT"
39 
40 /* Maximum objects in the various object caches */
41 
42 #define ACPI_MAX_STATE_CACHE_DEPTH      96	/* State objects */
43 #define ACPI_MAX_PARSE_CACHE_DEPTH      96	/* Parse tree objects */
44 #define ACPI_MAX_EXTPARSE_CACHE_DEPTH   96	/* Parse tree objects */
45 #define ACPI_MAX_OBJECT_CACHE_DEPTH     96	/* Interpreter operand objects */
46 #define ACPI_MAX_NAMESPACE_CACHE_DEPTH  96	/* Namespace objects */
47 #define ACPI_MAX_COMMENT_CACHE_DEPTH    96	/* Comments for the -ca option */
48 
49 /*
50  * Should the subsystem abort the loading of an ACPI table if the
51  * table checksum is incorrect?
52  */
53 #ifndef ACPI_CHECKSUM_ABORT
54 #define ACPI_CHECKSUM_ABORT             FALSE
55 #endif
56 
57 /*
58  * Generate a version of ACPICA that only supports "reduced hardware"
59  * platforms (as defined in ACPI 5.0). Set to TRUE to generate a specialized
60  * version of ACPICA that ONLY supports the ACPI 5.0 "reduced hardware"
61  * model. In other words, no ACPI hardware is supported.
62  *
63  * If TRUE, this means no support for the following:
64  *      PM Event and Control registers
65  *      SCI interrupt (and handler)
66  *      Fixed Events
67  *      General Purpose Events (GPEs)
68  *      Global Lock
69  *      ACPI PM timer
70  *      FACS table (Waking vectors and Global Lock)
71  */
72 #ifndef ACPI_REDUCED_HARDWARE
73 #define ACPI_REDUCED_HARDWARE           FALSE
74 #endif
75 
76 /******************************************************************************
77  *
78  * Subsystem Constants
79  *
80  *****************************************************************************/
81 
82 /* Version of ACPI supported */
83 
84 #define ACPI_CA_SUPPORT_LEVEL           5
85 
86 /* Maximum count for a semaphore object */
87 
88 #define ACPI_MAX_SEMAPHORE_COUNT        256
89 
90 /* Maximum object reference count (detects object deletion issues) */
91 
92 #define ACPI_MAX_REFERENCE_COUNT        0x4000
93 
94 /* Default page size for use in mapping memory for operation regions */
95 
96 #define ACPI_DEFAULT_PAGE_SIZE          4096	/* Must be power of 2 */
97 
98 /* owner_id tracking. 8 entries allows for 255 owner_ids */
99 
100 #define ACPI_NUM_OWNERID_MASKS          8
101 
102 /* Size of the root table array is increased by this increment */
103 
104 #define ACPI_ROOT_TABLE_SIZE_INCREMENT  4
105 
106 /* Maximum sleep allowed via Sleep() operator */
107 
108 #define ACPI_MAX_SLEEP                  2000	/* 2000 millisec == two seconds */
109 
110 /* Address Range lists are per-space_id (Memory and I/O only) */
111 
112 #define ACPI_ADDRESS_RANGE_MAX          2
113 
114 /* Maximum time (default 30s) of While() loops before abort */
115 
116 #define ACPI_MAX_LOOP_TIMEOUT           30
117 
118 /******************************************************************************
119  *
120  * ACPI Specification constants (Do not change unless the specification changes)
121  *
122  *****************************************************************************/
123 
124 /* Method info (in WALK_STATE), containing local variables and argumetns */
125 
126 #define ACPI_METHOD_NUM_LOCALS          8
127 #define ACPI_METHOD_MAX_LOCAL           7
128 
129 #define ACPI_METHOD_NUM_ARGS            7
130 #define ACPI_METHOD_MAX_ARG             6
131 
132 /*
133  * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
134  */
135 #define ACPI_OBJ_NUM_OPERANDS           8
136 #define ACPI_OBJ_MAX_OPERAND            7
137 
138 /* Number of elements in the Result Stack frame, can be an arbitrary value */
139 
140 #define ACPI_RESULTS_FRAME_OBJ_NUM      8
141 
142 /*
143  * Maximal number of elements the Result Stack can contain,
144  * it may be an arbitray value not exceeding the types of
145  * result_size and result_count (now u8).
146  */
147 #define ACPI_RESULTS_OBJ_NUM_MAX        255
148 
149 /* Constants used in searching for the RSDP in low memory */
150 
151 #define ACPI_EBDA_PTR_LOCATION          0x0000040E	/* Physical Address */
152 #define ACPI_EBDA_PTR_LENGTH            2
153 #define ACPI_EBDA_WINDOW_SIZE           1024
154 #define ACPI_HI_RSDP_WINDOW_BASE        0x000E0000	/* Physical Address */
155 #define ACPI_HI_RSDP_WINDOW_SIZE        0x00020000
156 #define ACPI_RSDP_SCAN_STEP             16
157 
158 /* Operation regions */
159 
160 #define ACPI_USER_REGION_BEGIN          0x80
161 
162 /* Maximum space_ids for Operation Regions */
163 
164 #define ACPI_MAX_ADDRESS_SPACE          255
165 #define ACPI_NUM_DEFAULT_SPACES         4
166 
167 /* Array sizes.  Used for range checking also */
168 
169 #define ACPI_MAX_MATCH_OPCODE           5
170 
171 /* RSDP checksums */
172 
173 #define ACPI_RSDP_CHECKSUM_LENGTH       20
174 #define ACPI_RSDP_XCHECKSUM_LENGTH      36
175 
176 /* SMBus, GSBus and IPMI bidirectional buffer size */
177 
178 #define ACPI_SMBUS_BUFFER_SIZE          34
179 #define ACPI_GSBUS_BUFFER_SIZE          34
180 #define ACPI_IPMI_BUFFER_SIZE           66
181 
182 /* _sx_d and _sx_w control methods */
183 
184 #define ACPI_NUM_sx_d_METHODS           4
185 #define ACPI_NUM_sx_w_METHODS           5
186 
187 /******************************************************************************
188  *
189  * Miscellaneous constants
190  *
191  *****************************************************************************/
192 
193 /* UUID constants */
194 
195 #define UUID_BUFFER_LENGTH          16	/* Length of UUID in memory */
196 #define UUID_STRING_LENGTH          36	/* Total length of a UUID string */
197 
198 /* Positions for required hyphens (dashes) in UUID strings */
199 
200 #define UUID_HYPHEN1_OFFSET         8
201 #define UUID_HYPHEN2_OFFSET         13
202 #define UUID_HYPHEN3_OFFSET         18
203 #define UUID_HYPHEN4_OFFSET         23
204 
205 /******************************************************************************
206  *
207  * ACPI AML Debugger
208  *
209  *****************************************************************************/
210 
211 #define ACPI_DEBUGGER_MAX_ARGS          ACPI_METHOD_NUM_ARGS + 4	/* Max command line arguments */
212 #define ACPI_DB_LINE_BUFFER_SIZE        512
213 
214 #define ACPI_DEBUGGER_COMMAND_PROMPT    '-'
215 #define ACPI_DEBUGGER_EXECUTE_PROMPT    '%'
216 
217 #endif				/* _ACCONFIG_H */
218