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-rw-r--r--drivers/acpi/namespace/Makefile2
-rw-r--r--drivers/acpi/namespace/nseval.c35
-rw-r--r--drivers/acpi/namespace/nsnames.c2
-rw-r--r--drivers/acpi/namespace/nspredef.c900
-rw-r--r--include/acpi/acdebug.h4
-rw-r--r--include/acpi/aclocal.h77
-rw-r--r--include/acpi/acnamesp.h16
-rw-r--r--include/acpi/acpredef.h371
8 files changed, 1401 insertions, 6 deletions
diff --git a/drivers/acpi/namespace/Makefile b/drivers/acpi/namespace/Makefile
index 3f63d3640696..371a2daf837f 100644
--- a/drivers/acpi/namespace/Makefile
+++ b/drivers/acpi/namespace/Makefile
@@ -5,7 +5,7 @@
5obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \ 5obj-y := nsaccess.o nsload.o nssearch.o nsxfeval.o \
6 nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ 6 nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \
7 nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ 7 nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \
8 nsparse.o 8 nsparse.o nspredef.o
9 9
10obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o 10obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
11 11
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index 42dae12f2ef8..4cdf03ac2b46 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -78,6 +78,7 @@ ACPI_MODULE_NAME("nseval")
78acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) 78acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
79{ 79{
80 acpi_status status; 80 acpi_status status;
81 struct acpi_namespace_node *node;
81 82
82 ACPI_FUNCTION_TRACE(ns_evaluate); 83 ACPI_FUNCTION_TRACE(ns_evaluate);
83 84
@@ -117,6 +118,8 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
117 info->resolved_node, 118 info->resolved_node,
118 acpi_ns_get_attached_object(info->resolved_node))); 119 acpi_ns_get_attached_object(info->resolved_node)));
119 120
121 node = info->resolved_node;
122
120 /* 123 /*
121 * Two major cases here: 124 * Two major cases here:
122 * 125 *
@@ -261,9 +264,35 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
261 } 264 }
262 } 265 }
263 266
264 /* 267 /* Validation of return values for ACPI-predefined methods and objects */
265 * Check if there is a return value that must be dealt with 268
266 */ 269 if ((status == AE_OK) || (status == AE_CTRL_RETURN_VALUE)) {
270 /*
271 * If this is the first evaluation, check the return value. This
272 * ensures that any warnings will only be emitted during the very
273 * first evaluation of the object.
274 */
275 if (!(node->flags & ANOBJ_EVALUATED)) {
276 /*
277 * Check for a predefined ACPI name. If found, validate the
278 * returned object.
279 *
280 * Note: Ignore return status for now, emit warnings if there are
281 * problems with the returned object. May change later to abort
282 * the method on invalid return object.
283 */
284 (void)acpi_ns_check_predefined_names(node,
285 info->
286 return_object);
287 }
288
289 /* Mark the node as having been evaluated */
290
291 node->flags |= ANOBJ_EVALUATED;
292 }
293
294 /* Check if there is a return value that must be dealt with */
295
267 if (status == AE_CTRL_RETURN_VALUE) { 296 if (status == AE_CTRL_RETURN_VALUE) {
268 297
269 /* If caller does not want the return value, delete it */ 298 /* If caller does not want the return value, delete it */
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
index 9c587bdfe3f3..42a39a7c96e9 100644
--- a/drivers/acpi/namespace/nsnames.c
+++ b/drivers/acpi/namespace/nsnames.c
@@ -115,7 +115,6 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
115 return (AE_OK); 115 return (AE_OK);
116} 116}
117 117
118#ifdef ACPI_DEBUG_OUTPUT
119/******************************************************************************* 118/*******************************************************************************
120 * 119 *
121 * FUNCTION: acpi_ns_get_external_pathname 120 * FUNCTION: acpi_ns_get_external_pathname
@@ -163,7 +162,6 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
163 162
164 return_PTR(name_buffer); 163 return_PTR(name_buffer);
165} 164}
166#endif
167 165
168/******************************************************************************* 166/*******************************************************************************
169 * 167 *
diff --git a/drivers/acpi/namespace/nspredef.c b/drivers/acpi/namespace/nspredef.c
new file mode 100644
index 000000000000..0f17cf0898c9
--- /dev/null
+++ b/drivers/acpi/namespace/nspredef.c
@@ -0,0 +1,900 @@
1/******************************************************************************
2 *
3 * Module Name: nspredef - Validation of ACPI predefined methods and objects
4 * $Revision: 1.1 $
5 *
6 *****************************************************************************/
7
8/*
9 * Copyright (C) 2000 - 2008, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
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.
26 *
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.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#include <acpi/acpi.h>
46#include <acpi/acnamesp.h>
47#include <acpi/acpredef.h>
48
49#define _COMPONENT ACPI_NAMESPACE
50ACPI_MODULE_NAME("nspredef")
51
52/*******************************************************************************
53 *
54 * This module validates predefined ACPI objects that appear in the namespace,
55 * at the time they are evaluated (via acpi_evaluate_object). The purpose of this
56 * validation is to detect problems with BIOS-exposed predefined ACPI objects
57 * before the results are returned to the ACPI-related drivers.
58 *
59 * There are several areas that are validated:
60 *
61 * 1) The number of input arguments as defined by the method/object in the
62 * ASL is validated against the ACPI specification.
63 * 2) The type of the return object (if any) is validated against the ACPI
64 * specification.
65 * 3) For returned package objects, the count of package elements is
66 * validated, as well as the type of each package element. Nested
67 * packages are supported.
68 *
69 * For any problems found, a warning message is issued.
70 *
71 ******************************************************************************/
72/* Local prototypes */
73static acpi_status
74acpi_ns_check_package(char *pathname,
75 union acpi_operand_object *return_object,
76 const union acpi_predefined_info *predefined);
77
78static acpi_status
79acpi_ns_check_package_elements(char *pathname,
80 union acpi_operand_object **elements,
81 u8 type1, u32 count1, u8 type2, u32 count2);
82
83static acpi_status
84acpi_ns_check_object_type(char *pathname,
85 union acpi_operand_object *return_object,
86 u32 expected_btypes, u32 package_index);
87
88static acpi_status
89acpi_ns_check_reference(char *pathname,
90 union acpi_operand_object *return_object);
91
92/*
93 * Names for the types that can be returned by the predefined objects.
94 * Used for warning messages. Must be in the same order as the ACPI_RTYPEs
95 */
96static const char *acpi_rtype_names[] = {
97 "/Integer",
98 "/String",
99 "/Buffer",
100 "/Package",
101 "/Reference",
102};
103
104#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX
105
106/*******************************************************************************
107 *
108 * FUNCTION: acpi_ns_check_predefined_names
109 *
110 * PARAMETERS: Node - Namespace node for the method/object
111 * return_object - Object returned from the evaluation of this
112 * method/object
113 *
114 * RETURN: Status
115 *
116 * DESCRIPTION: Check an ACPI name for a match in the predefined name list.
117 *
118 ******************************************************************************/
119
120acpi_status
121acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
122 union acpi_operand_object *return_object)
123{
124 acpi_status status = AE_OK;
125 const union acpi_predefined_info *predefined;
126 char *pathname;
127
128 /* Match the name for this method/object against the predefined list */
129
130 predefined = acpi_ns_check_for_predefined_name(node);
131 if (!predefined) {
132
133 /* Name was not one of the predefined names */
134
135 return (AE_OK);
136 }
137
138 /* Get the full pathname to the object, for use in error messages */
139
140 pathname = acpi_ns_get_external_pathname(node);
141 if (!pathname) {
142 pathname = ACPI_CAST_PTR(char, predefined->info.name);
143 }
144
145 /*
146 * Check that the parameter count for this method is in accordance
147 * with the ACPI specification.
148 */
149 acpi_ns_check_parameter_count(pathname, node, predefined);
150
151 /*
152 * If there is no return value, check if we require a return value for
153 * this predefined name. Either one return value is expected, or none,
154 * for both methods and other objects.
155 *
156 * Exit now if there is no return object. Warning if one was expected.
157 */
158 if (!return_object) {
159 if ((predefined->info.expected_btypes) &&
160 (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) {
161 ACPI_ERROR((AE_INFO,
162 "%s: Missing expected return value",
163 pathname));
164
165 status = AE_AML_NO_RETURN_VALUE;
166 }
167 goto exit;
168 }
169
170 /*
171 * We have a return value, but if one wasn't expected, just exit, this is
172 * not a problem
173 *
174 * For example, if "Implicit return value" is enabled, methods will
175 * always return a value
176 */
177 if (!predefined->info.expected_btypes) {
178 goto exit;
179 }
180
181 /*
182 * Check that the type of the return object is what is expected for
183 * this predefined name
184 */
185 status = acpi_ns_check_object_type(pathname, return_object,
186 predefined->info.expected_btypes,
187 ACPI_NOT_PACKAGE);
188 if (ACPI_FAILURE(status)) {
189 goto exit;
190 }
191
192 /* For returned Package objects, check the type of all sub-objects */
193
194 if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_PACKAGE) {
195 status =
196 acpi_ns_check_package(pathname, return_object, predefined);
197 }
198
199 exit:
200 if (pathname) {
201 ACPI_FREE(pathname);
202 }
203
204 return (status);
205}
206
207/*******************************************************************************
208 *
209 * FUNCTION: acpi_ns_check_parameter_count
210 *
211 * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
212 * Node - Namespace node for the method/object
213 * Predefined - Pointer to entry in predefined name table
214 *
215 * RETURN: None
216 *
217 * DESCRIPTION: Check that the declared (in ASL/AML) parameter count for a
218 * predefined name is what is expected (i.e., what is defined in
219 * the ACPI specification for this predefined name.)
220 *
221 ******************************************************************************/
222
223void
224acpi_ns_check_parameter_count(char *pathname,
225 struct acpi_namespace_node *node,
226 const union acpi_predefined_info *predefined)
227{
228 u32 param_count;
229 u32 required_params_current;
230 u32 required_params_old;
231
232 /*
233 * Check that the ASL-defined parameter count is what is expected for
234 * this predefined name.
235 *
236 * Methods have 0-7 parameters. All other types have zero.
237 */
238 param_count = 0;
239 if (node->type == ACPI_TYPE_METHOD) {
240 param_count = node->object->method.param_count;
241 }
242
243 /* Validate parameter count - allow two different legal counts (_SCP) */
244
245 required_params_current = predefined->info.param_count & 0x0F;
246 required_params_old = predefined->info.param_count >> 4;
247
248 if ((param_count != required_params_current) &&
249 (param_count != required_params_old)) {
250 ACPI_WARNING((AE_INFO,
251 "%s: Parameter count mismatch - ASL declared %d, expected %d",
252 pathname, param_count, required_params_current));
253 }
254}
255
256/*******************************************************************************
257 *
258 * FUNCTION: acpi_ns_check_for_predefined_name
259 *
260 * PARAMETERS: Node - Namespace node for the method/object
261 *
262 * RETURN: Pointer to entry in predefined table. NULL indicates not found.
263 *
264 * DESCRIPTION: Check an object name against the predefined object list.
265 *
266 ******************************************************************************/
267
268const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
269 acpi_namespace_node
270 *node)
271{
272 const union acpi_predefined_info *this_name;
273
274 /* Quick check for a predefined name, first character must be underscore */
275
276 if (node->name.ascii[0] != '_') {
277 return (NULL);
278 }
279
280 /* Search info table for a predefined method/object name */
281
282 this_name = predefined_names;
283 while (this_name->info.name[0]) {
284 if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) {
285
286 /* Return pointer to this table entry */
287
288 return (this_name);
289 }
290
291 /*
292 * Skip next entry in the table if this name returns a Package
293 * (next entry contains the package info)
294 */
295 if (this_name->info.expected_btypes & ACPI_RTYPE_PACKAGE) {
296 this_name++;
297 }
298
299 this_name++;
300 }
301
302 return (NULL);
303}
304
305/*******************************************************************************
306 *
307 * FUNCTION: acpi_ns_check_package
308 *
309 * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
310 * return_object - Object returned from the evaluation of a
311 * method or object
312 * Predefined - Pointer to entry in predefined name table
313 *
314 * RETURN: Status
315 *
316 * DESCRIPTION: Check a returned package object for the correct count and
317 * correct type of all sub-objects.
318 *
319 ******************************************************************************/
320
321static acpi_status
322acpi_ns_check_package(char *pathname,
323 union acpi_operand_object *return_object,
324 const union acpi_predefined_info *predefined)
325{
326 const union acpi_predefined_info *package;
327 union acpi_operand_object *sub_package;
328 union acpi_operand_object **elements;
329 union acpi_operand_object **sub_elements;
330 acpi_status status;
331 u32 expected_count;
332 u32 count;
333 u32 i;
334 u32 j;
335
336 ACPI_FUNCTION_NAME(ns_check_package);
337
338 /* The package info for this name is in the next table entry */
339
340 package = predefined + 1;
341
342 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
343 "%s Validating return Package of Type %X, Count %X\n",
344 pathname, package->ret_info.type,
345 return_object->package.count));
346
347 /* Extract package count and elements array */
348
349 elements = return_object->package.elements;
350 count = return_object->package.count;
351
352 /* The package must have at least one element, else invalid */
353
354 if (!count) {
355 ACPI_WARNING((AE_INFO,
356 "%s: Return Package has no elements (empty)",
357 pathname));
358
359 return (AE_AML_OPERAND_VALUE);
360 }
361
362 /*
363 * Decode the type of the expected package contents
364 *
365 * PTYPE1 packages contain no subpackages
366 * PTYPE2 packages contain sub-packages
367 */
368 switch (package->ret_info.type) {
369 case ACPI_PTYPE1_FIXED:
370
371 /*
372 * The package count is fixed and there are no sub-packages
373 *
374 * If package is too small, exit.
375 * If package is larger than expected, issue warning but continue
376 */
377 expected_count =
378 package->ret_info.count1 + package->ret_info.count2;
379 if (count < expected_count) {
380 goto package_too_small;
381 } else if (count > expected_count) {
382 ACPI_WARNING((AE_INFO,
383 "%s: Return Package is larger than needed - "
384 "found %u, expected %u", pathname, count,
385 expected_count));
386 }
387
388 /* Validate all elements of the returned package */
389
390 status = acpi_ns_check_package_elements(pathname, elements,
391 package->ret_info.
392 object_type1,
393 package->ret_info.
394 count1,
395 package->ret_info.
396 object_type2,
397 package->ret_info.
398 count2);
399 if (ACPI_FAILURE(status)) {
400 return (status);
401 }
402 break;
403
404 case ACPI_PTYPE1_VAR:
405
406 /*
407 * The package count is variable, there are no sub-packages, and all
408 * elements must be of the same type
409 */
410 for (i = 0; i < count; i++) {
411 status = acpi_ns_check_object_type(pathname, *elements,
412 package->ret_info.
413 object_type1, i);
414 if (ACPI_FAILURE(status)) {
415 return (status);
416 }
417 elements++;
418 }
419 break;
420
421 case ACPI_PTYPE1_OPTION:
422
423 /*
424 * The package count is variable, there are no sub-packages. There are
425 * a fixed number of required elements, and a variable number of
426 * optional elements.
427 *
428 * Check if package is at least as large as the minimum required
429 */
430 expected_count = package->ret_info3.count;
431 if (count < expected_count) {
432 goto package_too_small;
433 }
434
435 /* Variable number of sub-objects */
436
437 for (i = 0; i < count; i++) {
438 if (i < package->ret_info3.count) {
439
440 /* These are the required package elements (0, 1, or 2) */
441
442 status =
443 acpi_ns_check_object_type(pathname,
444 *elements,
445 package->
446 ret_info3.
447 object_type[i],
448 i);
449 if (ACPI_FAILURE(status)) {
450 return (status);
451 }
452 } else {
453 /* These are the optional package elements */
454
455 status =
456 acpi_ns_check_object_type(pathname,
457 *elements,
458 package->
459 ret_info3.
460 tail_object_type,
461 i);
462 if (ACPI_FAILURE(status)) {
463 return (status);
464 }
465 }
466 elements++;
467 }
468 break;
469
470 case ACPI_PTYPE2_PKG_COUNT:
471
472 /* First element is the (Integer) count of sub-packages to follow */
473
474 status = acpi_ns_check_object_type(pathname, *elements,
475 ACPI_RTYPE_INTEGER, 0);
476 if (ACPI_FAILURE(status)) {
477 return (status);
478 }
479
480 /*
481 * Count cannot be larger than the parent package length, but allow it
482 * to be smaller. The >= accounts for the Integer above.
483 */
484 expected_count = (u32) (*elements)->integer.value;
485 if (expected_count >= count) {
486 goto package_too_small;
487 }
488
489 count = expected_count;
490 elements++;
491
492 /* Now we can walk the sub-packages */
493
494 /*lint -fallthrough */
495
496 case ACPI_PTYPE2:
497 case ACPI_PTYPE2_FIXED:
498 case ACPI_PTYPE2_MIN:
499 case ACPI_PTYPE2_COUNT:
500
501 /*
502 * These types all return a single package that consists of a variable
503 * number of sub-packages
504 */
505 for (i = 0; i < count; i++) {
506 sub_package = *elements;
507 sub_elements = sub_package->package.elements;
508
509 /* Each sub-object must be of type Package */
510
511 status =
512 acpi_ns_check_object_type(pathname, sub_package,
513 ACPI_RTYPE_PACKAGE, i);
514 if (ACPI_FAILURE(status)) {
515 return (status);
516 }
517
518 /* Examine the different types of sub-packages */
519
520 switch (package->ret_info.type) {
521 case ACPI_PTYPE2:
522 case ACPI_PTYPE2_PKG_COUNT:
523
524 /* Each subpackage has a fixed number of elements */
525
526 expected_count =
527 package->ret_info.count1 +
528 package->ret_info.count2;
529 if (sub_package->package.count !=
530 expected_count) {
531 count = sub_package->package.count;
532 goto package_too_small;
533 }
534
535 status =
536 acpi_ns_check_package_elements(pathname,
537 sub_elements,
538 package->
539 ret_info.
540 object_type1,
541 package->
542 ret_info.
543 count1,
544 package->
545 ret_info.
546 object_type2,
547 package->
548 ret_info.
549 count2);
550 if (ACPI_FAILURE(status)) {
551 return (status);
552 }
553 break;
554
555 case ACPI_PTYPE2_FIXED:
556
557 /* Each sub-package has a fixed length */
558
559 expected_count = package->ret_info2.count;
560 if (sub_package->package.count < expected_count) {
561 count = sub_package->package.count;
562 goto package_too_small;
563 }
564
565 /* Check the type of each sub-package element */
566
567 for (j = 0; j < expected_count; j++) {
568 status =
569 acpi_ns_check_object_type(pathname,
570 sub_elements
571 [j],
572 package->
573 ret_info2.
574 object_type
575 [j], j);
576 if (ACPI_FAILURE(status)) {
577 return (status);
578 }
579 }
580 break;
581
582 case ACPI_PTYPE2_MIN:
583
584 /* Each sub-package has a variable but minimum length */
585
586 expected_count = package->ret_info.count1;
587 if (sub_package->package.count < expected_count) {
588 count = sub_package->package.count;
589 goto package_too_small;
590 }
591
592 /* Check the type of each sub-package element */
593
594 status =
595 acpi_ns_check_package_elements(pathname,
596 sub_elements,
597 package->
598 ret_info.
599 object_type1,
600 sub_package->
601 package.
602 count, 0, 0);
603 if (ACPI_FAILURE(status)) {
604 return (status);
605 }
606 break;
607
608 case ACPI_PTYPE2_COUNT:
609
610 /* First element is the (Integer) count of elements to follow */
611
612 status =
613 acpi_ns_check_object_type(pathname,
614 *sub_elements,
615 ACPI_RTYPE_INTEGER,
616 0);
617 if (ACPI_FAILURE(status)) {
618 return (status);
619 }
620
621 /* Make sure package is large enough for the Count */
622
623 expected_count =
624 (u32) (*sub_elements)->integer.value;
625 if (sub_package->package.count < expected_count) {
626 count = sub_package->package.count;
627 goto package_too_small;
628 }
629
630 /* Check the type of each sub-package element */
631
632 status =
633 acpi_ns_check_package_elements(pathname,
634 (sub_elements
635 + 1),
636 package->
637 ret_info.
638 object_type1,
639 (expected_count
640 - 1), 0, 0);
641 if (ACPI_FAILURE(status)) {
642 return (status);
643 }
644 break;
645
646 default:
647 break;
648 }
649
650 elements++;
651 }
652 break;
653
654 default:
655
656 /* Should not get here if predefined info table is correct */
657
658 ACPI_WARNING((AE_INFO,
659 "%s: Invalid internal return type in table entry: %X",
660 pathname, package->ret_info.type));
661
662 return (AE_AML_INTERNAL);
663 }
664
665 return (AE_OK);
666
667 package_too_small:
668
669 /* Error exit for the case with an incorrect package count */
670
671 ACPI_WARNING((AE_INFO, "%s: Return Package is too small - "
672 "found %u, expected %u", pathname, count,
673 expected_count));
674
675 return (AE_AML_OPERAND_VALUE);
676}
677
678/*******************************************************************************
679 *
680 * FUNCTION: acpi_ns_check_package_elements
681 *
682 * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
683 * Elements - Pointer to the package elements array
684 * Type1 - Object type for first group
685 * Count1 - Count for first group
686 * Type2 - Object type for second group
687 * Count2 - Count for second group
688 *
689 * RETURN: Status
690 *
691 * DESCRIPTION: Check that all elements of a package are of the correct object
692 * type. Supports up to two groups of different object types.
693 *
694 ******************************************************************************/
695
696static acpi_status
697acpi_ns_check_package_elements(char *pathname,
698 union acpi_operand_object **elements,
699 u8 type1, u32 count1, u8 type2, u32 count2)
700{
701 union acpi_operand_object **this_element = elements;
702 acpi_status status;
703 u32 i;
704
705 /*
706 * Up to two groups of package elements are supported by the data
707 * structure. All elements in each group must be of the same type.
708 * The second group can have a count of zero.
709 */
710 for (i = 0; i < count1; i++) {
711 status = acpi_ns_check_object_type(pathname, *this_element,
712 type1, i);
713 if (ACPI_FAILURE(status)) {
714 return (status);
715 }
716 this_element++;
717 }
718
719 for (i = 0; i < count2; i++) {
720 status = acpi_ns_check_object_type(pathname, *this_element,
721 type2, (i + count1));
722 if (ACPI_FAILURE(status)) {
723 return (status);
724 }
725 this_element++;
726 }
727
728 return (AE_OK);
729}
730
731/*******************************************************************************
732 *
733 * FUNCTION: acpi_ns_check_object_type
734 *
735 * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
736 * return_object - Object return from the execution of this
737 * method/object
738 * expected_btypes - Bitmap of expected return type(s)
739 * package_index - Index of object within parent package (if
740 * applicable - ACPI_NOT_PACKAGE otherwise)
741 *
742 * RETURN: Status
743 *
744 * DESCRIPTION: Check the type of the return object against the expected object
745 * type(s). Use of Btype allows multiple expected object types.
746 *
747 ******************************************************************************/
748
749static acpi_status
750acpi_ns_check_object_type(char *pathname,
751 union acpi_operand_object *return_object,
752 u32 expected_btypes, u32 package_index)
753{
754 acpi_status status = AE_OK;
755 u32 return_btype;
756 char type_buffer[48]; /* Room for 5 types */
757 u32 this_rtype;
758 u32 i;
759 u32 j;
760
761 /*
762 * If we get a NULL return_object here, it is a NULL package element,
763 * and this is always an error.
764 */
765 if (!return_object) {
766 goto type_error_exit;
767 }
768
769 /* A Namespace node should not get here, but make sure */
770
771 if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) {
772 ACPI_WARNING((AE_INFO,
773 "%s: Invalid return type - Found a Namespace node [%4.4s] type %s",
774 pathname, return_object->node.name.ascii,
775 acpi_ut_get_type_name(return_object->node.type)));
776 return (AE_AML_OPERAND_TYPE);
777 }
778
779 /*
780 * Convert the object type (ACPI_TYPE_xxx) to a bitmapped object type.
781 * The bitmapped type allows multiple possible return types.
782 *
783 * Note, the cases below must handle all of the possible types returned
784 * from all of the predefined names (including elements of returned
785 * packages)
786 */
787 switch (ACPI_GET_OBJECT_TYPE(return_object)) {
788 case ACPI_TYPE_INTEGER:
789 return_btype = ACPI_RTYPE_INTEGER;
790 break;
791
792 case ACPI_TYPE_BUFFER:
793 return_btype = ACPI_RTYPE_BUFFER;
794 break;
795
796 case ACPI_TYPE_STRING:
797 return_btype = ACPI_RTYPE_STRING;
798 break;
799
800 case ACPI_TYPE_PACKAGE:
801 return_btype = ACPI_RTYPE_PACKAGE;
802 break;
803
804 case ACPI_TYPE_LOCAL_REFERENCE:
805 return_btype = ACPI_RTYPE_REFERENCE;
806 break;
807
808 default:
809 /* Not one of the supported objects, must be incorrect */
810
811 goto type_error_exit;
812 }
813
814 /* Is the object one of the expected types? */
815
816 if (!(return_btype & expected_btypes)) {
817 goto type_error_exit;
818 }
819
820 /* For reference objects, check that the reference type is correct */
821
822 if (ACPI_GET_OBJECT_TYPE(return_object) == ACPI_TYPE_LOCAL_REFERENCE) {
823 status = acpi_ns_check_reference(pathname, return_object);
824 }
825
826 return (status);
827
828 type_error_exit:
829
830 /* Create a string with all expected types for this predefined object */
831
832 j = 1;
833 type_buffer[0] = 0;
834 this_rtype = ACPI_RTYPE_INTEGER;
835
836 for (i = 0; i < ACPI_NUM_RTYPES; i++) {
837
838 /* If one of the expected types, concatenate the name of this type */
839
840 if (expected_btypes & this_rtype) {
841 ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]);
842 j = 0; /* Use name separator from now on */
843 }
844 this_rtype <<= 1; /* Next Rtype */
845 }
846
847 if (package_index == ACPI_NOT_PACKAGE) {
848 ACPI_WARNING((AE_INFO,
849 "%s: Return type mismatch - found %s, expected %s",
850 pathname,
851 acpi_ut_get_object_type_name(return_object),
852 type_buffer));
853 } else {
854 ACPI_WARNING((AE_INFO,
855 "%s: Return Package type mismatch at index %u - "
856 "found %s, expected %s", pathname, package_index,
857 acpi_ut_get_object_type_name(return_object),
858 type_buffer));
859 }
860
861 return (AE_AML_OPERAND_TYPE);
862}
863
864/*******************************************************************************
865 *
866 * FUNCTION: acpi_ns_check_reference
867 *
868 * PARAMETERS: Pathname - Full pathname to the node (for error msgs)
869 * return_object - Object returned from the evaluation of a
870 * method or object
871 *
872 * RETURN: Status
873 *
874 * DESCRIPTION: Check a returned reference object for the correct reference
875 * type. The only reference type that can be returned from a
876 * predefined method is a named reference. All others are invalid.
877 *
878 ******************************************************************************/
879
880static acpi_status
881acpi_ns_check_reference(char *pathname,
882 union acpi_operand_object *return_object)
883{
884
885 /*
886 * Check the reference object for the correct reference type (opcode).
887 * The only type of reference that can be converted to an union acpi_object is
888 * a reference to a named object (reference class: NAME)
889 */
890 if (return_object->reference.class == ACPI_REFCLASS_NAME) {
891 return (AE_OK);
892 }
893
894 ACPI_WARNING((AE_INFO,
895 "%s: Return type mismatch - unexpected reference object type [%s] %2.2X",
896 pathname, acpi_ut_get_reference_name(return_object),
897 return_object->reference.class));
898
899 return (AE_AML_OPERAND_TYPE);
900}
diff --git a/include/acpi/acdebug.h b/include/acpi/acdebug.h
index a4fb001d96f1..62c59df3b86c 100644
--- a/include/acpi/acdebug.h
+++ b/include/acpi/acdebug.h
@@ -154,6 +154,10 @@ void
154acpi_db_display_argument_object(union acpi_operand_object *obj_desc, 154acpi_db_display_argument_object(union acpi_operand_object *obj_desc,
155 struct acpi_walk_state *walk_state); 155 struct acpi_walk_state *walk_state);
156 156
157void acpi_db_check_predefined_names(void);
158
159void acpi_db_batch_execute(void);
160
157/* 161/*
158 * dbexec - debugger control method execution 162 * dbexec - debugger control method execution
159 */ 163 */
diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h
index b221c8583ddd..ecab527cf78e 100644
--- a/include/acpi/aclocal.h
+++ b/include/acpi/aclocal.h
@@ -208,6 +208,7 @@ struct acpi_namespace_node {
208#define ANOBJ_METHOD_ARG 0x04 /* Node is a method argument */ 208#define ANOBJ_METHOD_ARG 0x04 /* Node is a method argument */
209#define ANOBJ_METHOD_LOCAL 0x08 /* Node is a method local */ 209#define ANOBJ_METHOD_LOCAL 0x08 /* Node is a method local */
210#define ANOBJ_SUBTREE_HAS_INI 0x10 /* Used to optimize device initialization */ 210#define ANOBJ_SUBTREE_HAS_INI 0x10 /* Used to optimize device initialization */
211#define ANOBJ_EVALUATED 0x20 /* Set on first evaluation of node */
211 212
212#define ANOBJ_IS_EXTERNAL 0x08 /* i_aSL only: This object created via External() */ 213#define ANOBJ_IS_EXTERNAL 0x08 /* i_aSL only: This object created via External() */
213#define ANOBJ_METHOD_NO_RETVAL 0x10 /* i_aSL only: Method has no return value */ 214#define ANOBJ_METHOD_NO_RETVAL 0x10 /* i_aSL only: Method has no return value */
@@ -340,6 +341,82 @@ acpi_status(*ACPI_INTERNAL_METHOD) (struct acpi_walk_state * walk_state);
340#define ACPI_BTYPE_OBJECTS_AND_REFS 0x0001FFFF /* ARG or LOCAL */ 341#define ACPI_BTYPE_OBJECTS_AND_REFS 0x0001FFFF /* ARG or LOCAL */
341#define ACPI_BTYPE_ALL_OBJECTS 0x0000FFFF 342#define ACPI_BTYPE_ALL_OBJECTS 0x0000FFFF
342 343
344/*
345 * Information structure for ACPI predefined names.
346 * Each entry in the table contains the following items:
347 *
348 * Name - The ACPI reserved name
349 * param_count - Number of arguments to the method
350 * expected_return_btypes - Allowed type(s) for the return value
351 */
352struct acpi_name_info {
353 char name[ACPI_NAME_SIZE];
354 u8 param_count;
355 u8 expected_btypes;
356};
357
358/*
359 * Secondary information structures for ACPI predefined objects that return
360 * package objects. This structure appears as the next entry in the table
361 * after the NAME_INFO structure above.
362 *
363 * The reason for this is to minimize the size of the predefined name table.
364 */
365
366/*
367 * Used for ACPI_PTYPE1_FIXED, ACPI_PTYPE1_VAR, ACPI_PTYPE2,
368 * ACPI_PTYPE2_MIN, ACPI_PTYPE2_PKG_COUNT, ACPI_PTYPE2_COUNT
369 */
370struct acpi_package_info {
371 u8 type;
372 u8 object_type1;
373 u8 count1;
374 u8 object_type2;
375 u8 count2;
376 u8 reserved;
377};
378
379/* Used for ACPI_PTYPE2_FIXED */
380
381struct acpi_package_info2 {
382 u8 type;
383 u8 count;
384 u8 object_type[4];
385};
386
387/* Used for ACPI_PTYPE1_OPTION */
388
389struct acpi_package_info3 {
390 u8 type;
391 u8 count;
392 u8 object_type[2];
393 u8 tail_object_type;
394 u8 reserved;
395};
396
397union acpi_predefined_info {
398 struct acpi_name_info info;
399 struct acpi_package_info ret_info;
400 struct acpi_package_info2 ret_info2;
401 struct acpi_package_info3 ret_info3;
402};
403
404/*
405 * Bitmapped return value types
406 * Note: the actual data types must be contiguous, a loop in nspredef.c
407 * depends on this.
408 */
409#define ACPI_RTYPE_ANY 0x00
410#define ACPI_RTYPE_NONE 0x01
411#define ACPI_RTYPE_INTEGER 0x02
412#define ACPI_RTYPE_STRING 0x04
413#define ACPI_RTYPE_BUFFER 0x08
414#define ACPI_RTYPE_PACKAGE 0x10
415#define ACPI_RTYPE_REFERENCE 0x20
416#define ACPI_RTYPE_ALL 0x3F
417
418#define ACPI_NUM_RTYPES 5 /* Number of actual object types */
419
343/***************************************************************************** 420/*****************************************************************************
344 * 421 *
345 * Event typedefs and structs 422 * Event typedefs and structs
diff --git a/include/acpi/acnamesp.h b/include/acpi/acnamesp.h
index c34008507b69..db4e6f677855 100644
--- a/include/acpi/acnamesp.h
+++ b/include/acpi/acnamesp.h
@@ -178,6 +178,22 @@ acpi_ns_dump_objects(acpi_object_type type,
178acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info); 178acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info);
179 179
180/* 180/*
181 * nspredef - Support for predefined/reserved names
182 */
183acpi_status
184acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
185 union acpi_operand_object *return_object);
186
187const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct
188 acpi_namespace_node
189 *node);
190
191void
192acpi_ns_check_parameter_count(char *pathname,
193 struct acpi_namespace_node *node,
194 const union acpi_predefined_info *info);
195
196/*
181 * nsnames - Name and Scope manipulation 197 * nsnames - Name and Scope manipulation
182 */ 198 */
183u32 acpi_ns_opens_scope(acpi_object_type type); 199u32 acpi_ns_opens_scope(acpi_object_type type);
diff --git a/include/acpi/acpredef.h b/include/acpi/acpredef.h
new file mode 100644
index 000000000000..619fb75f8861
--- /dev/null
+++ b/include/acpi/acpredef.h
@@ -0,0 +1,371 @@
1/******************************************************************************
2 *
3 * Name: acpredef - Information table for ACPI predefined methods and objects
4 * $Revision: 1.1 $
5 *
6 *****************************************************************************/
7
8/*
9 * Copyright (C) 2000 - 2008, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
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.
26 *
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.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#ifndef __ACPREDEF_H__
46#define __ACPREDEF_H__
47
48/******************************************************************************
49 *
50 * Return Package types
51 *
52 * 1) PTYPE1 packages do not contain sub-packages.
53 *
54 * ACPI_PTYPE1_FIXED: Fixed length, 1 or 2 object types:
55 * object type
56 * count
57 * object type
58 * count
59 *
60 * ACPI_PTYPE1_VAR: Variable length:
61 * object type (Int/Buf/Ref)
62 *
63 * ACPI_PTYPE1_OPTION: Package has some required and some optional elements:
64 * Used for _PRW
65 *
66 *
67 * 2) PTYPE2 packages contain a variable number of sub-packages. Each of the
68 * different types describe the contents of each of the sub-packages.
69 *
70 * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types:
71 * object type
72 * count
73 * object type
74 * count
75 *
76 * ACPI_PTYPE2_COUNT: Each subpackage has a count as first element:
77 * object type
78 *
79 * ACPI_PTYPE2_PKG_COUNT: Count of subpackages at start, 1 or 2 object types:
80 * object type
81 * count
82 * object type
83 * count
84 *
85 * ACPI_PTYPE2_FIXED: Each subpackage is of fixed length:
86 * Used for _PRT
87 *
88 * ACPI_PTYPE2_MIN: Each subpackage has a variable but minimum length
89 * Used for _HPX
90 *
91 *****************************************************************************/
92
93enum acpi_return_package_types {
94 ACPI_PTYPE1_FIXED = 1,
95 ACPI_PTYPE1_VAR = 2,
96 ACPI_PTYPE1_OPTION = 3,
97 ACPI_PTYPE2 = 4,
98 ACPI_PTYPE2_COUNT = 5,
99 ACPI_PTYPE2_PKG_COUNT = 6,
100 ACPI_PTYPE2_FIXED = 7,
101 ACPI_PTYPE2_MIN = 8
102};
103
104/*
105 * Predefined method/object information table.
106 *
107 * These are the names that can actually be evaluated via acpi_evaluate_object.
108 * Not present in this table are the following:
109 *
110 * 1) Predefined/Reserved names that are never evaluated via acpi_evaluate_object:
111 * _Lxx and _Exx GPE methods
112 * _Qxx EC methods
113 * _T_x compiler temporary variables
114 *
115 * 2) Predefined names that never actually exist within the AML code:
116 * Predefined resource descriptor field names
117 *
118 * 3) Predefined names that are implemented within ACPICA:
119 * _OSI
120 *
121 * 4) Some predefined names that are not documented within the ACPI spec.
122 * _WDG, _WED
123 *
124 * The main entries in the table each contain the following items:
125 *
126 * Name - The ACPI reserved name
127 * param_count - Number of arguments to the method
128 * expected_btypes - Allowed type(s) for the return value.
129 * 0 means that no return value is expected.
130 *
131 * For methods that return packages, the next entry in the table contains
132 * information about the expected structure of the package. This information
133 * is saved here (rather than in a separate table) in order to minimize the
134 * overall size of the stored data.
135 */
136static const union acpi_predefined_info predefined_names[] = {
137 {.info = {"_AC0", 0, ACPI_RTYPE_INTEGER}},
138 {.info = {"_AC1", 0, ACPI_RTYPE_INTEGER}},
139 {.info = {"_AC2", 0, ACPI_RTYPE_INTEGER}},
140 {.info = {"_AC3", 0, ACPI_RTYPE_INTEGER}},
141 {.info = {"_AC4", 0, ACPI_RTYPE_INTEGER}},
142 {.info = {"_AC5", 0, ACPI_RTYPE_INTEGER}},
143 {.info = {"_AC6", 0, ACPI_RTYPE_INTEGER}},
144 {.info = {"_AC7", 0, ACPI_RTYPE_INTEGER}},
145 {.info = {"_AC8", 0, ACPI_RTYPE_INTEGER}},
146 {.info = {"_AC9", 0, ACPI_RTYPE_INTEGER}},
147 {.info = {"_ADR", 0, ACPI_RTYPE_INTEGER}},
148 {.info = {"_AL0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
149 {.info = {"_AL1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
150 {.info = {"_AL2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
151 {.info = {"_AL3", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
152 {.info = {"_AL4", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
153 {.info = {"_AL5", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
154 {.info = {"_AL6", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
155 {.info = {"_AL7", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
156 {.info = {"_AL8", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
157 {.info = {"_AL9", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
158 {.info = {"_ALC", 0, ACPI_RTYPE_INTEGER}},
159 {.info = {"_ALI", 0, ACPI_RTYPE_INTEGER}},
160 {.info = {"_ALP", 0, ACPI_RTYPE_INTEGER}},
161 {.info = {"_ALR", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* variable (Pkgs) each 2 (Ints) */
162 {.info = {"_ALT", 0, ACPI_RTYPE_INTEGER}},
163 {.info = {"_BBN", 0, ACPI_RTYPE_INTEGER}},
164 {.info = {"_BCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */
165 {.info = {"_BCM", 1, 0}},
166 {.info = {"_BDN", 0, ACPI_RTYPE_INTEGER}},
167 {.info = {"_BFS", 1, 0}},
168 {.info = {"_BIF", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER,
169 9,
170 ACPI_RTYPE_STRING, 4, 0}}, /* fixed (9 Int),(4 Str) */
171 {.info = {"_BLT", 3, 0}},
172 {.info = {"_BMC", 1, 0}},
173 {.info = {"_BMD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* fixed (5 Int) */
174 {.info = {"_BQC", 0, ACPI_RTYPE_INTEGER}},
175 {.info = {"_BST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */
176 {.info = {"_BTM", 1, ACPI_RTYPE_INTEGER}},
177 {.info = {"_BTP", 1, 0}},
178 {.info = {"_CBA", 0, ACPI_RTYPE_INTEGER}}, /* see PCI firmware spec 3.0 */
179 {.info = {"_CID", 0,
180 ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}},
181 {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0, 0, 0, 0}}, /* variable (Ints/Strs) */
182 {.info = {"_CRS", 0, ACPI_RTYPE_BUFFER}},
183 {.info = {"_CRT", 0, ACPI_RTYPE_INTEGER}},
184 {.info = {"_CSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (1 Int(n), n-1 Int) */
185 {.info = {"_CST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_PKG_COUNT,
186 ACPI_RTYPE_BUFFER, 1,
187 ACPI_RTYPE_INTEGER, 3, 0}}, /* variable (1 Int(n), n Pkg (1 Buf/3 Int) */
188 {.info = {"_DCK", 1, ACPI_RTYPE_INTEGER}},
189 {.info = {"_DCS", 0, ACPI_RTYPE_INTEGER}},
190 {.info = {"_DDC", 1, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER}},
191 {.info = {"_DDN", 0, ACPI_RTYPE_STRING}},
192 {.info = {"_DGS", 0, ACPI_RTYPE_INTEGER}},
193 {.info = {"_DIS", 0, 0}},
194 {.info = {"_DMA", 0, ACPI_RTYPE_BUFFER}},
195 {.info = {"_DOD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */
196 {.info = {"_DOS", 1, 0}},
197 {.info = {"_DSM", 4, ACPI_RTYPE_ALL}}, /* Must return a type, but it can be of any type */
198 {.info = {"_DSS", 1, 0}},
199 {.info = {"_DSW", 3, 0}},
200 {.info = {"_EC_", 0, ACPI_RTYPE_INTEGER}},
201 {.info = {"_EDL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
202 {.info = {"_EJ0", 1, 0}},
203 {.info = {"_EJ1", 1, 0}},
204 {.info = {"_EJ2", 1, 0}},
205 {.info = {"_EJ3", 1, 0}},
206 {.info = {"_EJ4", 1, 0}},
207 {.info = {"_EJD", 0, ACPI_RTYPE_STRING}},
208 {.info = {"_FDE", 0, ACPI_RTYPE_BUFFER}},
209 {.info = {"_FDI", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, 0, 0, 0}}, /* fixed (16 Int) */
210 {.info = {"_FDM", 1, 0}},
211 {.info = {"_FIX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */
212 {.info = {"_GLK", 0, ACPI_RTYPE_INTEGER}},
213 {.info = {"_GPD", 0, ACPI_RTYPE_INTEGER}},
214 {.info = {"_GPE", 0, ACPI_RTYPE_INTEGER}}, /* _GPE method, not _GPE scope */
215 {.info = {"_GSB", 0, ACPI_RTYPE_INTEGER}},
216 {.info = {"_GTF", 0, ACPI_RTYPE_BUFFER}},
217 {.info = {"_GTM", 0, ACPI_RTYPE_BUFFER}},
218 {.info = {"_GTS", 1, 0}},
219 {.info = {"_HID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}},
220 {.info = {"_HOT", 0, ACPI_RTYPE_INTEGER}},
221 {.info = {"_HPP", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */
222
223 /*
224 * For _HPX, a single package is returned, containing a variable number of sub-packages.
225 * Each sub-package contains a PCI record setting. There are several different type of
226 * record settings, of different lengths, but all elements of all settings are Integers.
227 */
228 {.info = {"_HPX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each (var Ints) */
229 {.info = {"_IFT", 0, ACPI_RTYPE_INTEGER}}, /* see IPMI spec */
230 {.info = {"_INI", 0, 0}},
231 {.info = {"_IRC", 0, 0}},
232 {.info = {"_LCK", 1, 0}},
233 {.info = {"_LID", 0, ACPI_RTYPE_INTEGER}},
234 {.info = {"_MAT", 0, ACPI_RTYPE_BUFFER}},
235 {.info = {"_MLS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_STRING, 2, 0, 0, 0}}, /* variable (Pkgs) each (2 Str) */
236 {.info = {"_MSG", 1, 0}},
237 {.info = {"_OFF", 0, 0}},
238 {.info = {"_ON_", 0, 0}},
239 {.info = {"_OS_", 0, ACPI_RTYPE_STRING}},
240 {.info = {"_OSC", 4, ACPI_RTYPE_BUFFER}},
241 {.info = {"_OST", 3, 0}},
242 {.info = {"_PCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
243 {.info = {"_PCT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}}, /* fixed (2 Buf) */
244 {.info = {"_PDC", 1, 0}},
245 {.info = {"_PIC", 1, 0}},
246 {.info = {"_PLD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0, 0, 0, 0}}, /* variable (Bufs) */
247 {.info = {"_PPC", 0, ACPI_RTYPE_INTEGER}},
248 {.info = {"_PPE", 0, ACPI_RTYPE_INTEGER}}, /* see dig64 spec */
249 {.info = {"_PR0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
250 {.info = {"_PR1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
251 {.info = {"_PR2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
252 {.info = {"_PRS", 0, ACPI_RTYPE_BUFFER}},
253
254 /*
255 * For _PRT, many BIOSs reverse the 2nd and 3rd Package elements. This bug is so prevalent that there
256 * is code in the ACPICA Resource Manager to detect this and switch them back. For now, do not allow
257 * and issue a warning. To allow this and eliminate the warning, add the ACPI_RTYPE_REFERENCE
258 * type to the 2nd element (index 1) in the statement below.
259 */
260 {.info = {"_PRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_FIXED, 4,
261 ACPI_RTYPE_INTEGER,
262 ACPI_RTYPE_INTEGER,
263 ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE, ACPI_RTYPE_INTEGER}}, /* variable (Pkgs) each (4): Int,Int,Int/Ref,Int */
264
265 {.info = {"_PRW", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_OPTION, 2,
266 ACPI_RTYPE_INTEGER |
267 ACPI_RTYPE_PACKAGE,
268 ACPI_RTYPE_INTEGER, ACPI_RTYPE_REFERENCE, 0}}, /* variable (Pkgs) each: Pkg/Int,Int,[variable Refs] (Pkg is Ref/Int) */
269
270 {.info = {"_PS0", 0, 0}},
271 {.info = {"_PS1", 0, 0}},
272 {.info = {"_PS2", 0, 0}},
273 {.info = {"_PS3", 0, 0}},
274 {.info = {"_PSC", 0, ACPI_RTYPE_INTEGER}},
275 {.info = {"_PSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Pkgs) each (5 Int) with count */
276 {.info = {"_PSL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
277 {.info = {"_PSR", 0, ACPI_RTYPE_INTEGER}},
278 {.info = {"_PSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6, 0, 0, 0}}, /* variable (Pkgs) each (6 Int) */
279 {.info = {"_PSV", 0, ACPI_RTYPE_INTEGER}},
280 {.info = {"_PSW", 1, 0}},
281 {.info = {"_PTC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}}, /* fixed (2 Buf) */
282 {.info = {"_PTS", 1, 0}},
283 {.info = {"_PXM", 0, ACPI_RTYPE_INTEGER}},
284 {.info = {"_REG", 2, 0}},
285 {.info = {"_REV", 0, ACPI_RTYPE_INTEGER}},
286 {.info = {"_RMV", 0, ACPI_RTYPE_INTEGER}},
287 {.info = {"_ROM", 2, ACPI_RTYPE_BUFFER}},
288 {.info = {"_RTV", 0, ACPI_RTYPE_INTEGER}},
289
290 /*
291 * For _S0_ through _S5_, the ACPI spec defines a return Package containing 1 Integer,
292 * but most DSDTs have it wrong - 2,3, or 4 integers. Allow this by making the objects "variable length",
293 * but all elements must be Integers.
294 */
295 {.info = {"_S0_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */
296 {.info = {"_S1_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */
297 {.info = {"_S2_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */
298 {.info = {"_S3_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */
299 {.info = {"_S4_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */
300 {.info = {"_S5_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */
301
302 {.info = {"_S1D", 0, ACPI_RTYPE_INTEGER}},
303 {.info = {"_S2D", 0, ACPI_RTYPE_INTEGER}},
304 {.info = {"_S3D", 0, ACPI_RTYPE_INTEGER}},
305 {.info = {"_S4D", 0, ACPI_RTYPE_INTEGER}},
306 {.info = {"_S0W", 0, ACPI_RTYPE_INTEGER}},
307 {.info = {"_S1W", 0, ACPI_RTYPE_INTEGER}},
308 {.info = {"_S2W", 0, ACPI_RTYPE_INTEGER}},
309 {.info = {"_S3W", 0, ACPI_RTYPE_INTEGER}},
310 {.info = {"_S4W", 0, ACPI_RTYPE_INTEGER}},
311 {.info = {"_SBS", 0, ACPI_RTYPE_INTEGER}},
312 {.info = {"_SCP", 0x13, 0}}, /* Acpi 1.0 allowed 1 arg. Acpi 3.0 expanded to 3 args. Allow both. */
313 /* Note: the 3-arg definition may be removed for ACPI 4.0 */
314 {.info = {"_SDD", 1, 0}},
315 {.info = {"_SEG", 0, ACPI_RTYPE_INTEGER}},
316 {.info = {"_SLI", 0, ACPI_RTYPE_BUFFER}},
317 {.info = {"_SPD", 1, ACPI_RTYPE_INTEGER}},
318 {.info = {"_SRS", 1, 0}},
319 {.info = {"_SRV", 0, ACPI_RTYPE_INTEGER}}, /* see IPMI spec */
320 {.info = {"_SST", 1, 0}},
321 {.info = {"_STA", 0, ACPI_RTYPE_INTEGER}},
322 {.info = {"_STM", 3, 0}},
323 {.info = {"_STR", 0, ACPI_RTYPE_BUFFER}},
324 {.info = {"_SUN", 0, ACPI_RTYPE_INTEGER}},
325 {.info = {"_SWS", 0, ACPI_RTYPE_INTEGER}},
326 {.info = {"_TC1", 0, ACPI_RTYPE_INTEGER}},
327 {.info = {"_TC2", 0, ACPI_RTYPE_INTEGER}},
328 {.info = {"_TMP", 0, ACPI_RTYPE_INTEGER}},
329 {.info = {"_TPC", 0, ACPI_RTYPE_INTEGER}},
330 {.info = {"_TPT", 1, 0}},
331 {.info = {"_TRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2,
332 ACPI_RTYPE_INTEGER, 6, 0}}, /* variable (Pkgs) each 2_ref/6_int */
333 {.info = {"_TSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each 5_int with count */
334 {.info = {"_TSP", 0, ACPI_RTYPE_INTEGER}},
335 {.info = {"_TSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each 5_int */
336 {.info = {"_TST", 0, ACPI_RTYPE_INTEGER}},
337 {.info = {"_TTS", 1, 0}},
338 {.info = {"_TZD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */
339 {.info = {"_TZM", 0, ACPI_RTYPE_REFERENCE}},
340 {.info = {"_TZP", 0, ACPI_RTYPE_INTEGER}},
341 {.info = {"_UID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}},
342 {.info = {"_UPC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */
343 {.info = {"_UPD", 0, ACPI_RTYPE_INTEGER}},
344 {.info = {"_UPP", 0, ACPI_RTYPE_INTEGER}},
345 {.info = {"_VPO", 0, ACPI_RTYPE_INTEGER}},
346
347 /* Acpi 1.0 defined _WAK with no return value. Later, it was changed to return a package */
348
349 {.info = {"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_PACKAGE}},
350 {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* fixed (2 Int), but is optional */
351 {.ret_info = {0, 0, 0, 0, 0, 0}} /* Table terminator */
352};
353
354#if 0
355 /* Not implemented */
356
357{
358"_WDG", 0, ACPI_RTYPE_BUFFER}, /* MS Extension */
359
360{
361"_WED", 1, ACPI_RTYPE_PACKAGE}, /* MS Extension */
362
363 /* This is an internally implemented control method, no need to check */
364{
365"_OSI", 1, ACPI_RTYPE_INTEGER},
366
367 /* TBD: */
368 _PRT - currently ignore reversed entries.attempt to fix here ?
369 think about code that attempts to fix package elements like _BIF, etc.
370#endif
371#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 03:36:52 -0500