1 /******************************************************************************
3 * Module Name: dsargs - Support for execution of dynamic arguments for static
4 * objects (regions, fields, buffer fields, etc.)
6 *****************************************************************************/
9 * Copyright (C) 2000 - 2016, Intel Corp.
10 * All rights reserved.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer,
17 * without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 * substantially similar to the "NO WARRANTY" disclaimer below
20 * ("Disclaimer") and any redistribution must be conditioned upon
21 * including a substantially similar Disclaimer requirement for further
22 * binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 * of any contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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45 #include <contrib/dev/acpica/include/acpi.h>
46 #include <contrib/dev/acpica/include/accommon.h>
47 #include <contrib/dev/acpica/include/acparser.h>
48 #include <contrib/dev/acpica/include/amlcode.h>
49 #include <contrib/dev/acpica/include/acdispat.h>
50 #include <contrib/dev/acpica/include/acnamesp.h>
52 #define _COMPONENT ACPI_DISPATCHER
53 ACPI_MODULE_NAME ("dsargs")
55 /* Local prototypes */
58 AcpiDsExecuteArguments (
59 ACPI_NAMESPACE_NODE *Node,
60 ACPI_NAMESPACE_NODE *ScopeNode,
65 /*******************************************************************************
67 * FUNCTION: AcpiDsExecuteArguments
69 * PARAMETERS: Node - Object NS node
70 * ScopeNode - Parent NS node
71 * AmlLength - Length of executable AML
72 * AmlStart - Pointer to the AML
76 * DESCRIPTION: Late (deferred) execution of region or field arguments
78 ******************************************************************************/
81 AcpiDsExecuteArguments (
82 ACPI_NAMESPACE_NODE *Node,
83 ACPI_NAMESPACE_NODE *ScopeNode,
88 ACPI_PARSE_OBJECT *Op;
89 ACPI_WALK_STATE *WalkState;
92 ACPI_FUNCTION_TRACE (DsExecuteArguments);
95 /* Allocate a new parser op to be the root of the parsed tree */
97 Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP, AmlStart);
100 return_ACPI_STATUS (AE_NO_MEMORY);
103 /* Save the Node for use in AcpiPsParseAml */
105 Op->Common.Node = ScopeNode;
107 /* Create and initialize a new parser state */
109 WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
112 Status = AE_NO_MEMORY;
116 Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
117 AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
118 if (ACPI_FAILURE (Status))
120 AcpiDsDeleteWalkState (WalkState);
124 /* Mark this parse as a deferred opcode */
126 WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
127 WalkState->DeferredNode = Node;
129 /* Pass1: Parse the entire declaration */
131 Status = AcpiPsParseAml (WalkState);
132 if (ACPI_FAILURE (Status))
137 /* Get and init the Op created above */
139 Op->Common.Node = Node;
140 AcpiPsDeleteParseTree (Op);
142 /* Evaluate the deferred arguments */
144 Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP, AmlStart);
147 return_ACPI_STATUS (AE_NO_MEMORY);
150 Op->Common.Node = ScopeNode;
152 /* Create and initialize a new parser state */
154 WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
157 Status = AE_NO_MEMORY;
161 /* Execute the opcode and arguments */
163 Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
164 AmlLength, NULL, ACPI_IMODE_EXECUTE);
165 if (ACPI_FAILURE (Status))
167 AcpiDsDeleteWalkState (WalkState);
171 /* Mark this execution as a deferred opcode */
173 WalkState->DeferredNode = Node;
174 Status = AcpiPsParseAml (WalkState);
177 AcpiPsDeleteParseTree (Op);
178 return_ACPI_STATUS (Status);
182 /*******************************************************************************
184 * FUNCTION: AcpiDsGetBufferFieldArguments
186 * PARAMETERS: ObjDesc - A valid BufferField object
190 * DESCRIPTION: Get BufferField Buffer and Index. This implements the late
191 * evaluation of these field attributes.
193 ******************************************************************************/
196 AcpiDsGetBufferFieldArguments (
197 ACPI_OPERAND_OBJECT *ObjDesc)
199 ACPI_OPERAND_OBJECT *ExtraDesc;
200 ACPI_NAMESPACE_NODE *Node;
204 ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
207 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
209 return_ACPI_STATUS (AE_OK);
212 /* Get the AML pointer (method object) and BufferField node */
214 ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
215 Node = ObjDesc->BufferField.Node;
217 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
218 ACPI_TYPE_BUFFER_FIELD, Node, NULL));
220 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
221 AcpiUtGetNodeName (Node)));
223 /* Execute the AML code for the TermArg arguments */
225 Status = AcpiDsExecuteArguments (Node, Node->Parent,
226 ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
227 return_ACPI_STATUS (Status);
231 /*******************************************************************************
233 * FUNCTION: AcpiDsGetBankFieldArguments
235 * PARAMETERS: ObjDesc - A valid BankField object
239 * DESCRIPTION: Get BankField BankValue. This implements the late
240 * evaluation of these field attributes.
242 ******************************************************************************/
245 AcpiDsGetBankFieldArguments (
246 ACPI_OPERAND_OBJECT *ObjDesc)
248 ACPI_OPERAND_OBJECT *ExtraDesc;
249 ACPI_NAMESPACE_NODE *Node;
253 ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
256 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
258 return_ACPI_STATUS (AE_OK);
261 /* Get the AML pointer (method object) and BankField node */
263 ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
264 Node = ObjDesc->BankField.Node;
266 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
267 ACPI_TYPE_LOCAL_BANK_FIELD, Node, NULL));
269 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
270 AcpiUtGetNodeName (Node)));
272 /* Execute the AML code for the TermArg arguments */
274 Status = AcpiDsExecuteArguments (Node, Node->Parent,
275 ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
276 return_ACPI_STATUS (Status);
280 /*******************************************************************************
282 * FUNCTION: AcpiDsGetBufferArguments
284 * PARAMETERS: ObjDesc - A valid Buffer object
288 * DESCRIPTION: Get Buffer length and initializer byte list. This implements
289 * the late evaluation of these attributes.
291 ******************************************************************************/
294 AcpiDsGetBufferArguments (
295 ACPI_OPERAND_OBJECT *ObjDesc)
297 ACPI_NAMESPACE_NODE *Node;
301 ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
304 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
306 return_ACPI_STATUS (AE_OK);
309 /* Get the Buffer node */
311 Node = ObjDesc->Buffer.Node;
314 ACPI_ERROR ((AE_INFO,
315 "No pointer back to namespace node in buffer object %p",
317 return_ACPI_STATUS (AE_AML_INTERNAL);
320 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
322 /* Execute the AML code for the TermArg arguments */
324 Status = AcpiDsExecuteArguments (Node, Node,
325 ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
326 return_ACPI_STATUS (Status);
330 /*******************************************************************************
332 * FUNCTION: AcpiDsGetPackageArguments
334 * PARAMETERS: ObjDesc - A valid Package object
338 * DESCRIPTION: Get Package length and initializer byte list. This implements
339 * the late evaluation of these attributes.
341 ******************************************************************************/
344 AcpiDsGetPackageArguments (
345 ACPI_OPERAND_OBJECT *ObjDesc)
347 ACPI_NAMESPACE_NODE *Node;
351 ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
354 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
356 return_ACPI_STATUS (AE_OK);
359 /* Get the Package node */
361 Node = ObjDesc->Package.Node;
364 ACPI_ERROR ((AE_INFO,
365 "No pointer back to namespace node in package %p", ObjDesc));
366 return_ACPI_STATUS (AE_AML_INTERNAL);
369 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n"));
371 /* Execute the AML code for the TermArg arguments */
373 Status = AcpiDsExecuteArguments (Node, Node,
374 ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
375 return_ACPI_STATUS (Status);
379 /*******************************************************************************
381 * FUNCTION: AcpiDsGetRegionArguments
383 * PARAMETERS: ObjDesc - A valid region object
387 * DESCRIPTION: Get region address and length. This implements the late
388 * evaluation of these region attributes.
390 ******************************************************************************/
393 AcpiDsGetRegionArguments (
394 ACPI_OPERAND_OBJECT *ObjDesc)
396 ACPI_NAMESPACE_NODE *Node;
398 ACPI_OPERAND_OBJECT *ExtraDesc;
401 ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
404 if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
406 return_ACPI_STATUS (AE_OK);
409 ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
412 return_ACPI_STATUS (AE_NOT_EXIST);
415 /* Get the Region node */
417 Node = ObjDesc->Region.Node;
419 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
420 ACPI_TYPE_REGION, Node, NULL));
422 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
423 "[%4.4s] OpRegion Arg Init at AML %p\n",
424 AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
426 /* Execute the argument AML */
428 Status = AcpiDsExecuteArguments (Node, ExtraDesc->Extra.ScopeNode,
429 ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
430 if (ACPI_FAILURE (Status))
432 return_ACPI_STATUS (Status);
435 Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
436 ObjDesc->Region.Address, ObjDesc->Region.Length, Node);
437 return_ACPI_STATUS (Status);