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dsmthdat.c (83174) dsmthdat.c (87031)
1/*******************************************************************************
2 *
3 * Module Name: dsmthdat - control method arguments and local variables
1/*******************************************************************************
2 *
3 * Module Name: dsmthdat - control method arguments and local variables
4 * $Revision: 49 $
4 * $Revision: 53 $
5 *
6 ******************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.

--- 123 unchanged lines hidden (view full) ---

136 *
137 * RETURN: Status
138 *
139 * DESCRIPTION: Initialize the data structures that hold the method's arguments
140 * and locals. The data struct is an array of NTEs for each.
141 * This allows RefOf and DeRefOf to work properly for these
142 * special data types.
143 *
5 *
6 ******************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999, 2000, 2001, Intel Corp.

--- 123 unchanged lines hidden (view full) ---

136 *
137 * RETURN: Status
138 *
139 * DESCRIPTION: Initialize the data structures that hold the method's arguments
140 * and locals. The data struct is an array of NTEs for each.
141 * This allows RefOf and DeRefOf to work properly for these
142 * special data types.
143 *
144 * NOTES: WalkState fields are initialized to zero by the
145 * ACPI_MEM_CALLOCATE().
146 *
147 * A pseudo-Namespace Node is assigned to each argument and local
148 * so that RefOf() can return a pointer to the Node.
149 *
144 ******************************************************************************/
145
146ACPI_STATUS
147AcpiDsMethodDataInit (
148 ACPI_WALK_STATE *WalkState)
149{
150 UINT32 i;
151
152
153 FUNCTION_TRACE ("DsMethodDataInit");
154
150 ******************************************************************************/
151
152ACPI_STATUS
153AcpiDsMethodDataInit (
154 ACPI_WALK_STATE *WalkState)
155{
156 UINT32 i;
157
158
159 FUNCTION_TRACE ("DsMethodDataInit");
160
155 /*
156 * WalkState fields are initialized to zero by the
157 * ACPI_MEM_CALLOCATE().
158 *
159 * An Node is assigned to each argument and local so
160 * that RefOf() can return a pointer to the Node.
161 */
162
163 /* Init the method arguments */
164
165 for (i = 0; i < MTH_NUM_ARGS; i++)
166 {
167 MOVE_UNALIGNED32_TO_32 (&WalkState->Arguments[i].Name,
168 NAMEOF_ARG_NTE);
169 WalkState->Arguments[i].Name |= (i << 24);

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202 *
203 ******************************************************************************/
204
205ACPI_STATUS
206AcpiDsMethodDataDeleteAll (
207 ACPI_WALK_STATE *WalkState)
208{
209 UINT32 Index;
161
162 /* Init the method arguments */
163
164 for (i = 0; i < MTH_NUM_ARGS; i++)
165 {
166 MOVE_UNALIGNED32_TO_32 (&WalkState->Arguments[i].Name,
167 NAMEOF_ARG_NTE);
168 WalkState->Arguments[i].Name |= (i << 24);

--- 32 unchanged lines hidden (view full) ---

201 *
202 ******************************************************************************/
203
204ACPI_STATUS
205AcpiDsMethodDataDeleteAll (
206 ACPI_WALK_STATE *WalkState)
207{
208 UINT32 Index;
210 ACPI_OPERAND_OBJECT *Object;
211
212
213 FUNCTION_TRACE ("DsMethodDataDeleteAll");
214
215
209
210
211 FUNCTION_TRACE ("DsMethodDataDeleteAll");
212
213
216 /* Delete the locals */
214 /* Detach the locals */
217
215
218 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Deleting local variables in %p\n", WalkState));
219
220 for (Index = 0; Index < MTH_NUM_LOCALS; Index++)
221 {
216 for (Index = 0; Index < MTH_NUM_LOCALS; Index++)
217 {
222 Object = WalkState->LocalVariables[Index].Object;
223 if (Object)
218 if (WalkState->LocalVariables[Index].Object)
224 {
219 {
225 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Local%d=%p\n", Index, Object));
220 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Local%d=%p\n",
221 Index, WalkState->LocalVariables[Index].Object));
226
222
227 /* Remove first */
223 /* Detach object (if present) and remove a reference */
228
224
229 WalkState->LocalVariables[Index].Object = NULL;
230
231 /* Was given a ref when stored */
232
233 AcpiUtRemoveReference (Object);
225 AcpiNsDetachObject (&WalkState->LocalVariables[Index]);
234 }
235 }
236
226 }
227 }
228
229 /* Detach the arguments */
237
230
238 /* Delete the arguments */
239
240 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Deleting arguments in %p\n", WalkState));
241
242 for (Index = 0; Index < MTH_NUM_ARGS; Index++)
243 {
231 for (Index = 0; Index < MTH_NUM_ARGS; Index++)
232 {
244 Object = WalkState->Arguments[Index].Object;
245 if (Object)
233 if (WalkState->Arguments[Index].Object)
246 {
234 {
247 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Arg%d=%p\n", Index, Object));
235 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Deleting Arg%d=%p\n",
236 Index, WalkState->Arguments[Index].Object));
248
237
249 /* Remove first */
238 /* Detach object (if present) and remove a reference */
250
239
251 WalkState->Arguments[Index].Object = NULL;
252
253 /* Was given a ref when stored */
254
255 AcpiUtRemoveReference (Object);
240 AcpiNsDetachObject (&WalkState->Arguments[Index]);
256 }
257 }
258
259 return_ACPI_STATUS (AE_OK);
260}
261
262
263/*******************************************************************************
264 *
265 * FUNCTION: AcpiDsMethodDataInitArgs
266 *
267 * PARAMETERS: *Params - Pointer to a parameter list for the method
268 * MaxParamCount - The arg count for this method
269 * WalkState - Current walk state object
270 *
271 * RETURN: Status
272 *
241 }
242 }
243
244 return_ACPI_STATUS (AE_OK);
245}
246
247
248/*******************************************************************************
249 *
250 * FUNCTION: AcpiDsMethodDataInitArgs
251 *
252 * PARAMETERS: *Params - Pointer to a parameter list for the method
253 * MaxParamCount - The arg count for this method
254 * WalkState - Current walk state object
255 *
256 * RETURN: Status
257 *
273 * DESCRIPTION: Initialize arguments for a method
258 * DESCRIPTION: Initialize arguments for a method. The parameter list is a list
259 * of ACPI operand objects, either null terminated or whose length
260 * is defined by MaxParamCount.
274 *
275 ******************************************************************************/
276
277ACPI_STATUS
278AcpiDsMethodDataInitArgs (
279 ACPI_OPERAND_OBJECT **Params,
280 UINT32 MaxParamCount,
281 ACPI_WALK_STATE *WalkState)
282{
283 ACPI_STATUS Status;
261 *
262 ******************************************************************************/
263
264ACPI_STATUS
265AcpiDsMethodDataInitArgs (
266 ACPI_OPERAND_OBJECT **Params,
267 UINT32 MaxParamCount,
268 ACPI_WALK_STATE *WalkState)
269{
270 ACPI_STATUS Status;
284 UINT32 Mindex;
285 UINT32 Pindex;
271 UINT32 Index = 0;
286
287
288 FUNCTION_TRACE_PTR ("DsMethodDataInitArgs", Params);
289
290
291 if (!Params)
292 {
293 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "No param list passed to method\n"));
294 return_ACPI_STATUS (AE_OK);
295 }
296
297 /* Copy passed parameters into the new method stack frame */
298
272
273
274 FUNCTION_TRACE_PTR ("DsMethodDataInitArgs", Params);
275
276
277 if (!Params)
278 {
279 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "No param list passed to method\n"));
280 return_ACPI_STATUS (AE_OK);
281 }
282
283 /* Copy passed parameters into the new method stack frame */
284
299 for (Pindex = Mindex = 0;
300 (Mindex < MTH_NUM_ARGS) && (Pindex < MaxParamCount);
301 Mindex++)
285 while ((Index < MTH_NUM_ARGS) && (Index < MaxParamCount) && Params[Index])
302 {
286 {
303 if (Params[Pindex])
287 /*
288 * A valid parameter.
289 * Store the argument in the method/walk descriptor
290 */
291 Status = AcpiDsStoreObjectToLocal (AML_ARG_OP, Index, Params[Index],
292 WalkState);
293 if (ACPI_FAILURE (Status))
304 {
294 {
305 /*
306 * A valid parameter.
307 * Set the current method argument to the
308 * Params[Pindex++] argument object descriptor
309 */
310 Status = AcpiDsStoreObjectToLocal (AML_ARG_OP, Mindex,
311 Params[Pindex], WalkState);
312 if (ACPI_FAILURE (Status))
313 {
314 break;
315 }
316
317 Pindex++;
295 return_ACPI_STATUS (Status);
318 }
319
296 }
297
320 else
321 {
322 break;
323 }
298 Index++;
324 }
325
299 }
300
326 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%d args passed to method\n", Pindex));
301 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%d args passed to method\n", Index));
327 return_ACPI_STATUS (AE_OK);
328}
329
330
331/*******************************************************************************
332 *
302 return_ACPI_STATUS (AE_OK);
303}
304
305
306/*******************************************************************************
307 *
333 * FUNCTION: AcpiDsMethodDataGetEntry
308 * FUNCTION: AcpiDsMethodDataGetNode
334 *
335 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
309 *
310 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
336 * Index - Which localVar or argument to get
337 * Entry - Pointer to where a pointer to the stack
338 * entry is returned.
311 * Index - Which localVar or argument whose type
312 * to get
339 * WalkState - Current walk state object
340 *
313 * WalkState - Current walk state object
314 *
341 * RETURN: Status
315 * RETURN: Get the Node associated with a local or arg.
342 *
316 *
343 * DESCRIPTION: Get the address of the object entry given by Opcode:Index
344 *
345 ******************************************************************************/
346
347ACPI_STATUS
317 ******************************************************************************/
318
319ACPI_STATUS
348AcpiDsMethodDataGetEntry (
320AcpiDsMethodDataGetNode (
349 UINT16 Opcode,
350 UINT32 Index,
351 ACPI_WALK_STATE *WalkState,
321 UINT16 Opcode,
322 UINT32 Index,
323 ACPI_WALK_STATE *WalkState,
352 ACPI_OPERAND_OBJECT ***Entry)
324 ACPI_NAMESPACE_NODE **Node)
353{
325{
326 FUNCTION_TRACE ("DsMethodDataGetNode");
354
327
355 FUNCTION_TRACE_U32 ("DsMethodDataGetEntry", Index);
356
328
357
358 /*
329 /*
359 * Get the requested object.
360 * The stack "Opcode" is either a LocalVariable or an Argument
330 * Method Locals and Arguments are supported
361 */
362 switch (Opcode)
363 {
331 */
332 switch (Opcode)
333 {
364
365 case AML_LOCAL_OP:
366
367 if (Index > MTH_MAX_LOCAL)
368 {
334 case AML_LOCAL_OP:
335
336 if (Index > MTH_MAX_LOCAL)
337 {
369 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "LocalVar index %d is invalid (max %d)\n",
338 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Local index %d is invalid (max %d)\n",
370 Index, MTH_MAX_LOCAL));
339 Index, MTH_MAX_LOCAL));
371 return_ACPI_STATUS (AE_BAD_PARAMETER);
340 return_ACPI_STATUS (AE_AML_INVALID_INDEX);
372 }
373
341 }
342
374 *Entry = (ACPI_OPERAND_OBJECT **)
375 &WalkState->LocalVariables[Index].Object;
343 /* Return a pointer to the pseudo-node */
344
345 *Node = &WalkState->LocalVariables[Index];
376 break;
377
346 break;
347
378
379 case AML_ARG_OP:
380
381 if (Index > MTH_MAX_ARG)
382 {
383 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Arg index %d is invalid (max %d)\n",
384 Index, MTH_MAX_ARG));
348 case AML_ARG_OP:
349
350 if (Index > MTH_MAX_ARG)
351 {
352 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Arg index %d is invalid (max %d)\n",
353 Index, MTH_MAX_ARG));
385 return_ACPI_STATUS (AE_BAD_PARAMETER);
354 return_ACPI_STATUS (AE_AML_INVALID_INDEX);
386 }
387
355 }
356
388 *Entry = (ACPI_OPERAND_OBJECT **)
389 &WalkState->Arguments[Index].Object;
357 /* Return a pointer to the pseudo-node */
358
359 *Node = &WalkState->Arguments[Index];
390 break;
391
360 break;
361
392
393 default:
394 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Opcode %d is invalid\n", Opcode));
362 default:
363 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Opcode %d is invalid\n", Opcode));
395 return_ACPI_STATUS (AE_BAD_PARAMETER);
364 return_ACPI_STATUS (AE_AML_BAD_OPCODE);
365 break;
396 }
397
366 }
367
398
399 return_ACPI_STATUS (AE_OK);
400}
401
402
403/*******************************************************************************
404 *
368 return_ACPI_STATUS (AE_OK);
369}
370
371
372/*******************************************************************************
373 *
405 * FUNCTION: AcpiDsMethodDataSetEntry
374 * FUNCTION: AcpiDsMethodDataSetValue
406 *
407 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
408 * Index - Which localVar or argument to get
409 * Object - Object to be inserted into the stack entry
410 * WalkState - Current walk state object
411 *
412 * RETURN: Status
413 *
414 * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index.
415 *
416 ******************************************************************************/
417
418ACPI_STATUS
375 *
376 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
377 * Index - Which localVar or argument to get
378 * Object - Object to be inserted into the stack entry
379 * WalkState - Current walk state object
380 *
381 * RETURN: Status
382 *
383 * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index.
384 *
385 ******************************************************************************/
386
387ACPI_STATUS
419AcpiDsMethodDataSetEntry (
388AcpiDsMethodDataSetValue (
420 UINT16 Opcode,
421 UINT32 Index,
422 ACPI_OPERAND_OBJECT *Object,
423 ACPI_WALK_STATE *WalkState)
424{
425 ACPI_STATUS Status;
389 UINT16 Opcode,
390 UINT32 Index,
391 ACPI_OPERAND_OBJECT *Object,
392 ACPI_WALK_STATE *WalkState)
393{
394 ACPI_STATUS Status;
426 ACPI_OPERAND_OBJECT **Entry;
395 ACPI_NAMESPACE_NODE *Node;
427
428
396
397
429 FUNCTION_TRACE ("DsMethodDataSetEntry");
398 FUNCTION_TRACE ("DsMethodDataSetValue");
430
431
399
400
432 /* Get a pointer to the stack entry to set */
401 /* Get the namespace node for the arg/local */
433
402
434 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
403 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
435 if (ACPI_FAILURE (Status))
436 {
437 return_ACPI_STATUS (Status);
438 }
439
440 /* Increment ref count so object can't be deleted while installed */
441
442 AcpiUtAddReference (Object);
443
444 /* Install the object into the stack entry */
445
404 if (ACPI_FAILURE (Status))
405 {
406 return_ACPI_STATUS (Status);
407 }
408
409 /* Increment ref count so object can't be deleted while installed */
410
411 AcpiUtAddReference (Object);
412
413 /* Install the object into the stack entry */
414
446 *Entry = Object;
447
415 Node->Object = Object;
448 return_ACPI_STATUS (AE_OK);
449}
450
451
452/*******************************************************************************
453 *
454 * FUNCTION: AcpiDsMethodDataGetType
455 *
456 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
457 * Index - Which localVar or argument whose type
458 * to get
459 * WalkState - Current walk state object
460 *
416 return_ACPI_STATUS (AE_OK);
417}
418
419
420/*******************************************************************************
421 *
422 * FUNCTION: AcpiDsMethodDataGetType
423 *
424 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
425 * Index - Which localVar or argument whose type
426 * to get
427 * WalkState - Current walk state object
428 *
461 * RETURN: Data type of selected Arg or Local
462 * Used only in ExecMonadic2()/TypeOp.
429 * RETURN: Data type of current value of the selected Arg or Local
463 *
464 ******************************************************************************/
465
466ACPI_OBJECT_TYPE8
467AcpiDsMethodDataGetType (
468 UINT16 Opcode,
469 UINT32 Index,
470 ACPI_WALK_STATE *WalkState)
471{
472 ACPI_STATUS Status;
430 *
431 ******************************************************************************/
432
433ACPI_OBJECT_TYPE8
434AcpiDsMethodDataGetType (
435 UINT16 Opcode,
436 UINT32 Index,
437 ACPI_WALK_STATE *WalkState)
438{
439 ACPI_STATUS Status;
473 ACPI_OPERAND_OBJECT **Entry;
440 ACPI_NAMESPACE_NODE *Node;
474 ACPI_OPERAND_OBJECT *Object;
475
476
477 FUNCTION_TRACE ("DsMethodDataGetType");
478
479
441 ACPI_OPERAND_OBJECT *Object;
442
443
444 FUNCTION_TRACE ("DsMethodDataGetType");
445
446
480 /* Get a pointer to the requested stack entry */
447 /* Get the namespace node for the arg/local */
481
448
482 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
449 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
483 if (ACPI_FAILURE (Status))
484 {
485 return_VALUE ((ACPI_TYPE_NOT_FOUND));
486 }
487
450 if (ACPI_FAILURE (Status))
451 {
452 return_VALUE ((ACPI_TYPE_NOT_FOUND));
453 }
454
488 /* Get the object from the method stack */
455 /* Get the object */
489
456
490 Object = *Entry;
491
492 /* Get the object type */
493
457 Object = AcpiNsGetAttachedObject (Node);
494 if (!Object)
495 {
458 if (!Object)
459 {
496 /* Any == 0 => "uninitialized" -- see spec 15.2.3.5.2.28 */
460 /* Uninitialized local/arg, return TYPE_ANY */
461
497 return_VALUE (ACPI_TYPE_ANY);
498 }
499
462 return_VALUE (ACPI_TYPE_ANY);
463 }
464
465 /* Get the object type */
466
500 return_VALUE (Object->Common.Type);
501}
502
503
504/*******************************************************************************
505 *
467 return_VALUE (Object->Common.Type);
468}
469
470
471/*******************************************************************************
472 *
506 * FUNCTION: AcpiDsMethodDataGetNode
507 *
508 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
509 * Index - Which localVar or argument whose type
510 * to get
511 * WalkState - Current walk state object
512 *
513 * RETURN: Get the Node associated with a local or arg.
514 *
515 ******************************************************************************/
516
517ACPI_NAMESPACE_NODE *
518AcpiDsMethodDataGetNode (
519 UINT16 Opcode,
520 UINT32 Index,
521 ACPI_WALK_STATE *WalkState)
522{
523 ACPI_NAMESPACE_NODE *Node = NULL;
524
525
526 FUNCTION_TRACE ("DsMethodDataGetNode");
527
528
529 switch (Opcode)
530 {
531
532 case AML_LOCAL_OP:
533
534 if (Index > MTH_MAX_LOCAL)
535 {
536 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Local index %d is invalid (max %d)\n",
537 Index, MTH_MAX_LOCAL));
538 return_PTR (Node);
539 }
540
541 Node = &WalkState->LocalVariables[Index];
542 break;
543
544
545 case AML_ARG_OP:
546
547 if (Index > MTH_MAX_ARG)
548 {
549 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Arg index %d is invalid (max %d)\n",
550 Index, MTH_MAX_ARG));
551 return_PTR (Node);
552 }
553
554 Node = &WalkState->Arguments[Index];
555 break;
556
557
558 default:
559 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Opcode %d is invalid\n", Opcode));
560 break;
561 }
562
563
564 return_PTR (Node);
565}
566
567
568/*******************************************************************************
569 *
570 * FUNCTION: AcpiDsMethodDataGetValue
571 *
572 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
573 * Index - Which localVar or argument to get
574 * WalkState - Current walk state object
575 * *DestDesc - Ptr to Descriptor into which selected Arg
576 * or Local value should be copied
577 *

--- 8 unchanged lines hidden (view full) ---

586ACPI_STATUS
587AcpiDsMethodDataGetValue (
588 UINT16 Opcode,
589 UINT32 Index,
590 ACPI_WALK_STATE *WalkState,
591 ACPI_OPERAND_OBJECT **DestDesc)
592{
593 ACPI_STATUS Status;
473 * FUNCTION: AcpiDsMethodDataGetValue
474 *
475 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
476 * Index - Which localVar or argument to get
477 * WalkState - Current walk state object
478 * *DestDesc - Ptr to Descriptor into which selected Arg
479 * or Local value should be copied
480 *

--- 8 unchanged lines hidden (view full) ---

489ACPI_STATUS
490AcpiDsMethodDataGetValue (
491 UINT16 Opcode,
492 UINT32 Index,
493 ACPI_WALK_STATE *WalkState,
494 ACPI_OPERAND_OBJECT **DestDesc)
495{
496 ACPI_STATUS Status;
594 ACPI_OPERAND_OBJECT **Entry;
497 ACPI_NAMESPACE_NODE *Node;
595 ACPI_OPERAND_OBJECT *Object;
596
597
598 FUNCTION_TRACE ("DsMethodDataGetValue");
599
600
601 /* Validate the object descriptor */
602
603 if (!DestDesc)
604 {
605 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null object descriptor pointer\n"));
606 return_ACPI_STATUS (AE_BAD_PARAMETER);
607 }
608
498 ACPI_OPERAND_OBJECT *Object;
499
500
501 FUNCTION_TRACE ("DsMethodDataGetValue");
502
503
504 /* Validate the object descriptor */
505
506 if (!DestDesc)
507 {
508 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null object descriptor pointer\n"));
509 return_ACPI_STATUS (AE_BAD_PARAMETER);
510 }
511
512 /* Get the namespace node for the arg/local */
609
513
610 /* Get a pointer to the requested method stack entry */
611
612 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
514 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
613 if (ACPI_FAILURE (Status))
614 {
615 return_ACPI_STATUS (Status);
616 }
617
515 if (ACPI_FAILURE (Status))
516 {
517 return_ACPI_STATUS (Status);
518 }
519
618 /* Get the object from the method stack */
520 /* Get the object from the node */
619
521
620 Object = *Entry;
522 Object = Node->Object;
621
523
622
623 /* Examine the returned object, it must be valid. */
624
625 if (!Object)
626 {
627 /*
524 /* Examine the returned object, it must be valid. */
525
526 if (!Object)
527 {
528 /*
628 * Index points to uninitialized object stack value.
529 * Index points to uninitialized object.
629 * This means that either 1) The expected argument was
630 * not passed to the method, or 2) A local variable
631 * was referenced by the method (via the ASL)
632 * before it was initialized. Either case is an error.
633 */
634 switch (Opcode)
635 {
636 case AML_ARG_OP:
637
530 * This means that either 1) The expected argument was
531 * not passed to the method, or 2) A local variable
532 * was referenced by the method (via the ASL)
533 * before it was initialized. Either case is an error.
534 */
535 switch (Opcode)
536 {
537 case AML_ARG_OP:
538
638 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Arg[%d] at entry %p\n",
639 Index, Entry));
539 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Arg[%d] at node %p\n",
540 Index, Node));
640
641 return_ACPI_STATUS (AE_AML_UNINITIALIZED_ARG);
642 break;
643
644 case AML_LOCAL_OP:
645
541
542 return_ACPI_STATUS (AE_AML_UNINITIALIZED_ARG);
543 break;
544
545 case AML_LOCAL_OP:
546
646 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Local[%d] at entry %p\n",
647 Index, Entry));
547 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Uninitialized Local[%d] at node %p\n",
548 Index, Node));
648
649 return_ACPI_STATUS (AE_AML_UNINITIALIZED_LOCAL);
650 break;
651 }
652 }
653
549
550 return_ACPI_STATUS (AE_AML_UNINITIALIZED_LOCAL);
551 break;
552 }
553 }
554
654
655 /*
555 /*
656 * Index points to initialized and valid object stack value.
556 * The Index points to an initialized and valid object.
657 * Return an additional reference to the object
658 */
659 *DestDesc = Object;
660 AcpiUtAddReference (Object);
661
662 return_ACPI_STATUS (AE_OK);
663}
664

--- 15 unchanged lines hidden (view full) ---

680
681ACPI_STATUS
682AcpiDsMethodDataDeleteValue (
683 UINT16 Opcode,
684 UINT32 Index,
685 ACPI_WALK_STATE *WalkState)
686{
687 ACPI_STATUS Status;
557 * Return an additional reference to the object
558 */
559 *DestDesc = Object;
560 AcpiUtAddReference (Object);
561
562 return_ACPI_STATUS (AE_OK);
563}
564

--- 15 unchanged lines hidden (view full) ---

580
581ACPI_STATUS
582AcpiDsMethodDataDeleteValue (
583 UINT16 Opcode,
584 UINT32 Index,
585 ACPI_WALK_STATE *WalkState)
586{
587 ACPI_STATUS Status;
688 ACPI_OPERAND_OBJECT **Entry;
588 ACPI_NAMESPACE_NODE *Node;
689 ACPI_OPERAND_OBJECT *Object;
690
691
692 FUNCTION_TRACE ("DsMethodDataDeleteValue");
693
694
589 ACPI_OPERAND_OBJECT *Object;
590
591
592 FUNCTION_TRACE ("DsMethodDataDeleteValue");
593
594
695 /* Get a pointer to the requested entry */
595 /* Get the namespace node for the arg/local */
696
596
697 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
597 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
698 if (ACPI_FAILURE (Status))
699 {
700 return_ACPI_STATUS (Status);
701 }
702
598 if (ACPI_FAILURE (Status))
599 {
600 return_ACPI_STATUS (Status);
601 }
602
703 /* Get the current entry in this slot k */
603 /* Get the associated object */
704
604
705 Object = *Entry;
605 Object = AcpiNsGetAttachedObject (Node);
706
707 /*
708 * Undefine the Arg or Local by setting its descriptor
709 * pointer to NULL. Locals/Args can contain both
710 * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs
711 */
606
607 /*
608 * Undefine the Arg or Local by setting its descriptor
609 * pointer to NULL. Locals/Args can contain both
610 * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs
611 */
712 *Entry = NULL;
612 Node->Object = NULL;
713
714 if ((Object) &&
715 (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_INTERNAL)))
716 {
717 /*
613
614 if ((Object) &&
615 (VALID_DESCRIPTOR_TYPE (Object, ACPI_DESC_TYPE_INTERNAL)))
616 {
617 /*
718 * There is a valid object in this slot
618 * There is a valid object.
719 * Decrement the reference count by one to balance the
619 * Decrement the reference count by one to balance the
720 * increment when the object was stored in the slot.
620 * increment when the object was stored.
721 */
722 AcpiUtRemoveReference (Object);
723 }
724
725 return_ACPI_STATUS (AE_OK);
726}
727
728
729/*******************************************************************************
730 *
731 * FUNCTION: AcpiDsStoreObjectToLocal
732 *
733 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
734 * Index - Which localVar or argument to set
621 */
622 AcpiUtRemoveReference (Object);
623 }
624
625 return_ACPI_STATUS (AE_OK);
626}
627
628
629/*******************************************************************************
630 *
631 * FUNCTION: AcpiDsStoreObjectToLocal
632 *
633 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
634 * Index - Which localVar or argument to set
735 * SrcDesc - Value to be stored
635 * ObjDesc - Value to be stored
736 * WalkState - Current walk state
737 *
738 * RETURN: Status
739 *
636 * WalkState - Current walk state
637 *
638 * RETURN: Status
639 *
740 * DESCRIPTION: Store a value in an Arg or Local. The SrcDesc is installed
640 * DESCRIPTION: Store a value in an Arg or Local. The ObjDesc is installed
741 * as the new value for the Arg or Local and the reference count
641 * as the new value for the Arg or Local and the reference count
742 * for SrcDesc is incremented.
642 * for ObjDesc is incremented.
743 *
744 ******************************************************************************/
745
746ACPI_STATUS
747AcpiDsStoreObjectToLocal (
748 UINT16 Opcode,
749 UINT32 Index,
643 *
644 ******************************************************************************/
645
646ACPI_STATUS
647AcpiDsStoreObjectToLocal (
648 UINT16 Opcode,
649 UINT32 Index,
750 ACPI_OPERAND_OBJECT *SrcDesc,
650 ACPI_OPERAND_OBJECT *ObjDesc,
751 ACPI_WALK_STATE *WalkState)
752{
753 ACPI_STATUS Status;
651 ACPI_WALK_STATE *WalkState)
652{
653 ACPI_STATUS Status;
754 ACPI_OPERAND_OBJECT **Entry;
654 ACPI_NAMESPACE_NODE *Node;
655 ACPI_OPERAND_OBJECT *CurrentObjDesc;
755
756
656
657
757 FUNCTION_TRACE ("DsMethodDataSetValue");
658 FUNCTION_TRACE ("DsStoreObjectToLocal");
758 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Opcode=%d Idx=%d Obj=%p\n",
659 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Opcode=%d Idx=%d Obj=%p\n",
759 Opcode, Index, SrcDesc));
660 Opcode, Index, ObjDesc));
760
761
762 /* Parameter validation */
763
661
662
663 /* Parameter validation */
664
764 if (!SrcDesc)
665 if (!ObjDesc)
765 {
766 return_ACPI_STATUS (AE_BAD_PARAMETER);
767 }
768
666 {
667 return_ACPI_STATUS (AE_BAD_PARAMETER);
668 }
669
670 /* Get the namespace node for the arg/local */
769
671
770 /* Get a pointer to the requested method stack entry */
771
772 Status = AcpiDsMethodDataGetEntry (Opcode, Index, WalkState, &Entry);
672 Status = AcpiDsMethodDataGetNode (Opcode, Index, WalkState, &Node);
773 if (ACPI_FAILURE (Status))
774 {
673 if (ACPI_FAILURE (Status))
674 {
775 goto Cleanup;
675 return_ACPI_STATUS (Status);
776 }
777
676 }
677
778 if (*Entry == SrcDesc)
678 CurrentObjDesc = AcpiNsGetAttachedObject (Node);
679 if (CurrentObjDesc == ObjDesc)
779 {
680 {
780 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p already installed!\n", SrcDesc));
781 goto Cleanup;
681 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj=%p already installed!\n", ObjDesc));
682 return_ACPI_STATUS (Status);
782 }
783
683 }
684
784
785 /*
786 * If there is an object already in this slot, we either
787 * have to delete it, or if this is an argument and there
788 * is an object reference stored there, we have to do
789 * an indirect store!
790 */
685 /*
686 * If there is an object already in this slot, we either
687 * have to delete it, or if this is an argument and there
688 * is an object reference stored there, we have to do
689 * an indirect store!
690 */
791 if (*Entry)
691 if (CurrentObjDesc)
792 {
793 /*
794 * Check for an indirect store if an argument
795 * contains an object reference (stored as an Node).
796 * We don't allow this automatic dereferencing for
797 * locals, since a store to a local should overwrite
798 * anything there, including an object reference.
799 *
800 * If both Arg0 and Local0 contain RefOf (Local4):
801 *
802 * Store (1, Arg0) - Causes indirect store to local4
803 * Store (1, Local0) - Stores 1 in local0, overwriting
804 * the reference to local4
805 * Store (1, DeRefof (Local0)) - Causes indirect store to local4
806 *
807 * Weird, but true.
808 */
809 if ((Opcode == AML_ARG_OP) &&
692 {
693 /*
694 * Check for an indirect store if an argument
695 * contains an object reference (stored as an Node).
696 * We don't allow this automatic dereferencing for
697 * locals, since a store to a local should overwrite
698 * anything there, including an object reference.
699 *
700 * If both Arg0 and Local0 contain RefOf (Local4):
701 *
702 * Store (1, Arg0) - Causes indirect store to local4
703 * Store (1, Local0) - Stores 1 in local0, overwriting
704 * the reference to local4
705 * Store (1, DeRefof (Local0)) - Causes indirect store to local4
706 *
707 * Weird, but true.
708 */
709 if ((Opcode == AML_ARG_OP) &&
810 (VALID_DESCRIPTOR_TYPE (*Entry, ACPI_DESC_TYPE_NAMED)))
710 (VALID_DESCRIPTOR_TYPE (CurrentObjDesc, ACPI_DESC_TYPE_NAMED)))
811 {
812 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
711 {
712 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
813 "Arg (%p) is an ObjRef(Node), storing in %p\n",
814 SrcDesc, *Entry));
713 "Arg (%p) is an ObjRef(Node), storing in node %p\n",
714 ObjDesc, CurrentObjDesc));
815
816 /* Detach an existing object from the Node */
817
715
716 /* Detach an existing object from the Node */
717
818 AcpiNsDetachObject ((ACPI_NAMESPACE_NODE *) *Entry);
718 AcpiNsDetachObject ((ACPI_NAMESPACE_NODE *) CurrentObjDesc);
819
820 /*
821 * Store this object into the Node
719
720 /*
721 * Store this object into the Node
822 * (do the indirect store)
722 * (perform the indirect store)
823 */
723 */
824 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) *Entry, SrcDesc,
825 SrcDesc->Common.Type);
724 Status = AcpiNsAttachObject ((ACPI_NAMESPACE_NODE *) CurrentObjDesc,
725 ObjDesc, ObjDesc->Common.Type);
826 return_ACPI_STATUS (Status);
827 }
828
726 return_ACPI_STATUS (Status);
727 }
728
829
830#ifdef ACPI_ENABLE_IMPLICIT_CONVERSION
831 /*
729 /*
832 * Perform "Implicit conversion" of the new object to the type of the
833 * existing object
834 */
835 Status = AcpiExConvertToTargetType ((*Entry)->Common.Type, &SrcDesc, WalkState);
836 if (ACPI_FAILURE (Status))
837 {
838 goto Cleanup;
839 }
840#endif
841
842 /*
843 * Delete the existing object
844 * before storing the new one
845 */
846 AcpiDsMethodDataDeleteValue (Opcode, Index, WalkState);
847 }
848
730 * Delete the existing object
731 * before storing the new one
732 */
733 AcpiDsMethodDataDeleteValue (Opcode, Index, WalkState);
734 }
735
849
850 /*
736 /*
851 * Install the ObjStack descriptor (*SrcDesc) into
737 * Install the ObjStack descriptor (*ObjDesc) into
852 * the descriptor for the Arg or Local.
853 * Install the new object in the stack entry
854 * (increments the object reference count by one)
855 */
738 * the descriptor for the Arg or Local.
739 * Install the new object in the stack entry
740 * (increments the object reference count by one)
741 */
856 Status = AcpiDsMethodDataSetEntry (Opcode, Index, SrcDesc, WalkState);
857 if (ACPI_FAILURE (Status))
858 {
859 goto Cleanup;
860 }
861
862 /* Normal exit */
863
864 return_ACPI_STATUS (AE_OK);
865
866
867 /* Error exit */
868
869Cleanup:
870
742 Status = AcpiDsMethodDataSetValue (Opcode, Index, ObjDesc, WalkState);
871 return_ACPI_STATUS (Status);
872}
873
743 return_ACPI_STATUS (Status);
744}
745
746