1 /******************************************************************************
3 * Name: acconfig.h - Global configuration constants
5 *****************************************************************************/
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47 /******************************************************************************
49 * Configuration options
51 *****************************************************************************/
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.
59 * ACPI_APPLICATION - Use this switch if the subsystem is going to be run
60 * at the application level.
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.
72 #define ACPI_OS_NAME "Microsoft Windows NT"
74 /* Maximum objects in the various object caches */
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 */
83 * Should the subsystem abort the loading of an ACPI table if the
84 * table checksum is incorrect?
86 #ifndef ACPI_CHECKSUM_ABORT
87 #define ACPI_CHECKSUM_ABORT FALSE
91 * Generate a version of ACPICA that only supports "reduced hardware"
92 * platforms (as defined in ACPI 5.0). Set to TRUE to generate a specialized
93 * version of ACPICA that ONLY supports the ACPI 5.0 "reduced hardware"
94 * model. In other words, no ACPI hardware is supported.
96 * If TRUE, this means no support for the following:
97 * PM Event and Control registers
98 * SCI interrupt (and handler)
100 * General Purpose Events (GPEs)
103 * FACS table (Waking vectors and Global Lock)
105 #ifndef ACPI_REDUCED_HARDWARE
106 #define ACPI_REDUCED_HARDWARE FALSE
109 /******************************************************************************
111 * Subsystem Constants
113 *****************************************************************************/
115 /* Version of ACPI supported */
117 #define ACPI_CA_SUPPORT_LEVEL 5
119 /* Maximum count for a semaphore object */
121 #define ACPI_MAX_SEMAPHORE_COUNT 256
123 /* Maximum object reference count (detects object deletion issues) */
125 #define ACPI_MAX_REFERENCE_COUNT 0x1000
127 /* Default page size for use in mapping memory for operation regions */
129 #define ACPI_DEFAULT_PAGE_SIZE 4096 /* Must be power of 2 */
131 /* owner_id tracking. 8 entries allows for 255 owner_ids */
133 #define ACPI_NUM_OWNERID_MASKS 8
135 /* Size of the root table array is increased by this increment */
137 #define ACPI_ROOT_TABLE_SIZE_INCREMENT 4
139 /* Maximum sleep allowed via Sleep() operator */
141 #define ACPI_MAX_SLEEP 2000 /* 2000 millisec == two seconds */
143 /* Address Range lists are per-space_id (Memory and I/O only) */
145 #define ACPI_ADDRESS_RANGE_MAX 2
147 /* Maximum number of While() loops before abort */
149 #define ACPI_MAX_LOOP_COUNT 0xFFFF
151 /******************************************************************************
153 * ACPI Specification constants (Do not change unless the specification changes)
155 *****************************************************************************/
157 /* Method info (in WALK_STATE), containing local variables and argumetns */
159 #define ACPI_METHOD_NUM_LOCALS 8
160 #define ACPI_METHOD_MAX_LOCAL 7
162 #define ACPI_METHOD_NUM_ARGS 7
163 #define ACPI_METHOD_MAX_ARG 6
166 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
168 #define ACPI_OBJ_NUM_OPERANDS 8
169 #define ACPI_OBJ_MAX_OPERAND 7
171 /* Number of elements in the Result Stack frame, can be an arbitrary value */
173 #define ACPI_RESULTS_FRAME_OBJ_NUM 8
176 * Maximal number of elements the Result Stack can contain,
177 * it may be an arbitray value not exceeding the types of
178 * result_size and result_count (now u8).
180 #define ACPI_RESULTS_OBJ_NUM_MAX 255
182 /* Constants used in searching for the RSDP in low memory */
184 #define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */
185 #define ACPI_EBDA_PTR_LENGTH 2
186 #define ACPI_EBDA_WINDOW_SIZE 1024
187 #define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */
188 #define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000
189 #define ACPI_RSDP_SCAN_STEP 16
191 /* Operation regions */
193 #define ACPI_USER_REGION_BEGIN 0x80
195 /* Maximum space_ids for Operation Regions */
197 #define ACPI_MAX_ADDRESS_SPACE 255
198 #define ACPI_NUM_DEFAULT_SPACES 4
200 /* Array sizes. Used for range checking also */
202 #define ACPI_MAX_MATCH_OPCODE 5
206 #define ACPI_RSDP_CHECKSUM_LENGTH 20
207 #define ACPI_RSDP_XCHECKSUM_LENGTH 36
209 /* SMBus, GSBus and IPMI bidirectional buffer size */
211 #define ACPI_SMBUS_BUFFER_SIZE 34
212 #define ACPI_GSBUS_BUFFER_SIZE 34
213 #define ACPI_IPMI_BUFFER_SIZE 66
215 /* _sx_d and _sx_w control methods */
217 #define ACPI_NUM_sx_d_METHODS 4
218 #define ACPI_NUM_sx_w_METHODS 5
220 /******************************************************************************
222 * Miscellaneous constants
224 *****************************************************************************/
228 #define UUID_BUFFER_LENGTH 16 /* Length of UUID in memory */
229 #define UUID_STRING_LENGTH 36 /* Total length of a UUID string */
231 /* Positions for required hyphens (dashes) in UUID strings */
233 #define UUID_HYPHEN1_OFFSET 8
234 #define UUID_HYPHEN2_OFFSET 13
235 #define UUID_HYPHEN3_OFFSET 18
236 #define UUID_HYPHEN4_OFFSET 23
238 /******************************************************************************
242 *****************************************************************************/
244 #define ACPI_DEBUGGER_MAX_ARGS ACPI_METHOD_NUM_ARGS + 4 /* Max command line arguments */
245 #define ACPI_DB_LINE_BUFFER_SIZE 512
247 #define ACPI_DEBUGGER_COMMAND_PROMPT '-'
248 #define ACPI_DEBUGGER_EXECUTE_PROMPT '%'
250 #endif /* _ACCONFIG_H */