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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / acpi / acpica / dbcmds.c
blob9eb68e0751c78300600115a27c699e6ffb43f384
1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /*******************************************************************************
3 *
4 * Module Name: dbcmds - Miscellaneous debug commands and output routines
5 *
6 ******************************************************************************/
7
8 #include <acpi/acpi.h>
9 #include "accommon.h"
10 #include "acevents.h"
11 #include "acdebug.h"
12 #include "acnamesp.h"
13 #include "acresrc.h"
14 #include "actables.h"
15
16 #define _COMPONENT ACPI_CA_DEBUGGER
17 ACPI_MODULE_NAME("dbcmds")
18
19 /* Local prototypes */
20 static void
21 acpi_dm_compare_aml_resources(u8 *aml1_buffer,
22 acpi_rsdesc_size aml1_buffer_length,
23 u8 *aml2_buffer,
24 acpi_rsdesc_size aml2_buffer_length);
25
26 static acpi_status
27 acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name);
28
29 static acpi_status
30 acpi_db_resource_callback(struct acpi_resource *resource, void *context);
31
32 static acpi_status
33 acpi_db_device_resources(acpi_handle obj_handle,
34 u32 nesting_level, void *context, void **return_value);
35
36 static void acpi_db_do_one_sleep_state(u8 sleep_state);
37
38 static char *acpi_db_trace_method_name = NULL;
39
40 /*******************************************************************************
41 *
42 * FUNCTION: acpi_db_convert_to_node
43 *
44 * PARAMETERS: in_string - String to convert
45 *
46 * RETURN: Pointer to a NS node
47 *
48 * DESCRIPTION: Convert a string to a valid NS pointer. Handles numeric or
49 * alphanumeric strings.
50 *
51 ******************************************************************************/
52
53 struct acpi_namespace_node *acpi_db_convert_to_node(char *in_string)
54 {
55 struct acpi_namespace_node *node;
56 acpi_size address;
57
58 if ((*in_string >= 0x30) && (*in_string <= 0x39)) {
59
60 /* Numeric argument, convert */
61
62 address = strtoul(in_string, NULL, 16);
63 node = ACPI_TO_POINTER(address);
64 if (!acpi_os_readable(node, sizeof(struct acpi_namespace_node))) {
65 acpi_os_printf("Address %p is invalid", node);
66 return (NULL);
67 }
68
69 /* Make sure pointer is valid NS node */
70
71 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
72 acpi_os_printf
73 ("Address %p is not a valid namespace node [%s]\n",
74 node, acpi_ut_get_descriptor_name(node));
75 return (NULL);
76 }
77 } else {
78 /*
79 * Alpha argument: The parameter is a name string that must be
80 * resolved to a Namespace object.
81 */
82 node = acpi_db_local_ns_lookup(in_string);
83 if (!node) {
84 acpi_os_printf
85 ("Could not find [%s] in namespace, defaulting to root node\n",
86 in_string);
87 node = acpi_gbl_root_node;
88 }
89 }
90
91 return (node);
92 }
93
94 /*******************************************************************************
95 *
96 * FUNCTION: acpi_db_sleep
97 *
98 * PARAMETERS: object_arg - Desired sleep state (0-5). NULL means
99 * invoke all possible sleep states.
100 *
101 * RETURN: Status
102 *
103 * DESCRIPTION: Simulate sleep/wake sequences
104 *
105 ******************************************************************************/
106
107 acpi_status acpi_db_sleep(char *object_arg)
108 {
109 u8 sleep_state;
110 u32 i;
111
112 ACPI_FUNCTION_TRACE(acpi_db_sleep);
113
114 /* Null input (no arguments) means to invoke all sleep states */
115
116 if (!object_arg) {
117 acpi_os_printf("Invoking all possible sleep states, 0-%d\n",
118 ACPI_S_STATES_MAX);
119
120 for (i = 0; i <= ACPI_S_STATES_MAX; i++) {
121 acpi_db_do_one_sleep_state((u8)i);
122 }
123
124 return_ACPI_STATUS(AE_OK);
125 }
126
127 /* Convert argument to binary and invoke the sleep state */
128
129 sleep_state = (u8)strtoul(object_arg, NULL, 0);
130 acpi_db_do_one_sleep_state(sleep_state);
131 return_ACPI_STATUS(AE_OK);
132 }
133
134 /*******************************************************************************
135 *
136 * FUNCTION: acpi_db_do_one_sleep_state
137 *
138 * PARAMETERS: sleep_state - Desired sleep state (0-5)
139 *
140 * RETURN: None
141 *
142 * DESCRIPTION: Simulate a sleep/wake sequence
143 *
144 ******************************************************************************/
145
146 static void acpi_db_do_one_sleep_state(u8 sleep_state)
147 {
148 acpi_status status;
149 u8 sleep_type_a;
150 u8 sleep_type_b;
151
152 /* Validate parameter */
153
154 if (sleep_state > ACPI_S_STATES_MAX) {
155 acpi_os_printf("Sleep state %d out of range (%d max)\n",
156 sleep_state, ACPI_S_STATES_MAX);
157 return;
158 }
159
160 acpi_os_printf("\n---- Invoking sleep state S%d (%s):\n",
161 sleep_state, acpi_gbl_sleep_state_names[sleep_state]);
162
163 /* Get the values for the sleep type registers (for display only) */
164
165 status =
166 acpi_get_sleep_type_data(sleep_state, &sleep_type_a, &sleep_type_b);
167 if (ACPI_FAILURE(status)) {
168 acpi_os_printf("Could not evaluate [%s] method, %s\n",
169 acpi_gbl_sleep_state_names[sleep_state],
170 acpi_format_exception(status));
171 return;
172 }
173
174 acpi_os_printf
175 ("Register values for sleep state S%d: Sleep-A: %.2X, Sleep-B: %.2X\n",
176 sleep_state, sleep_type_a, sleep_type_b);
177
178 /* Invoke the various sleep/wake interfaces */
179
180 acpi_os_printf("**** Sleep: Prepare to sleep (S%d) ****\n",
181 sleep_state);
182 status = acpi_enter_sleep_state_prep(sleep_state);
183 if (ACPI_FAILURE(status)) {
184 goto error_exit;
185 }
186
187 acpi_os_printf("**** Sleep: Going to sleep (S%d) ****\n", sleep_state);
188 status = acpi_enter_sleep_state(sleep_state);
189 if (ACPI_FAILURE(status)) {
190 goto error_exit;
191 }
192
193 acpi_os_printf("**** Wake: Prepare to return from sleep (S%d) ****\n",
194 sleep_state);
195 status = acpi_leave_sleep_state_prep(sleep_state);
196 if (ACPI_FAILURE(status)) {
197 goto error_exit;
198 }
199
200 acpi_os_printf("**** Wake: Return from sleep (S%d) ****\n",
201 sleep_state);
202 status = acpi_leave_sleep_state(sleep_state);
203 if (ACPI_FAILURE(status)) {
204 goto error_exit;
205 }
206
207 return;
208
209 error_exit:
210 ACPI_EXCEPTION((AE_INFO, status, "During invocation of sleep state S%d",
211 sleep_state));
212 }
213
214 /*******************************************************************************
215 *
216 * FUNCTION: acpi_db_display_locks
217 *
218 * PARAMETERS: None
219 *
220 * RETURN: None
221 *
222 * DESCRIPTION: Display information about internal mutexes.
223 *
224 ******************************************************************************/
225
226 void acpi_db_display_locks(void)
227 {
228 u32 i;
229
230 for (i = 0; i < ACPI_MAX_MUTEX; i++) {
231 acpi_os_printf("%26s : %s\n", acpi_ut_get_mutex_name(i),
232 acpi_gbl_mutex_info[i].thread_id ==
233 ACPI_MUTEX_NOT_ACQUIRED ? "Locked" : "Unlocked");
234 }
235 }
236
237 /*******************************************************************************
238 *
239 * FUNCTION: acpi_db_display_table_info
240 *
241 * PARAMETERS: table_arg - Name of table to be displayed
242 *
243 * RETURN: None
244 *
245 * DESCRIPTION: Display information about loaded tables. Current
246 * implementation displays all loaded tables.
247 *
248 ******************************************************************************/
249
250 void acpi_db_display_table_info(char *table_arg)
251 {
252 u32 i;
253 struct acpi_table_desc *table_desc;
254 acpi_status status;
255
256 /* Header */
257
258 acpi_os_printf("Idx ID Status Type "
259 "TableHeader (Sig, Address, Length, Misc)\n");
260
261 /* Walk the entire root table list */
262
263 for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) {
264 table_desc = &acpi_gbl_root_table_list.tables[i];
265
266 /* Index and Table ID */
267
268 acpi_os_printf("%3u %.2u ", i, table_desc->owner_id);
269
270 /* Decode the table flags */
271
272 if (!(table_desc->flags & ACPI_TABLE_IS_LOADED)) {
273 acpi_os_printf("NotLoaded ");
274 } else {
275 acpi_os_printf(" Loaded ");
276 }
277
278 switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
279 case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
280
281 acpi_os_printf("External/virtual ");
282 break;
283
284 case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
285
286 acpi_os_printf("Internal/physical ");
287 break;
288
289 case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
290
291 acpi_os_printf("Internal/virtual ");
292 break;
293
294 default:
295
296 acpi_os_printf("INVALID TYPE ");
297 break;
298 }
299
300 /* Make sure that the table is mapped */
301
302 status = acpi_tb_validate_table(table_desc);
303 if (ACPI_FAILURE(status)) {
304 return;
305 }
306
307 /* Dump the table header */
308
309 if (table_desc->pointer) {
310 acpi_tb_print_table_header(table_desc->address,
311 table_desc->pointer);
312 } else {
313 /* If the pointer is null, the table has been unloaded */
314
315 ACPI_INFO(("%4.4s - Table has been unloaded",
316 table_desc->signature.ascii));
317 }
318 }
319 }
320
321 /*******************************************************************************
322 *
323 * FUNCTION: acpi_db_unload_acpi_table
324 *
325 * PARAMETERS: object_name - Namespace pathname for an object that
326 * is owned by the table to be unloaded
327 *
328 * RETURN: None
329 *
330 * DESCRIPTION: Unload an ACPI table, via any namespace node that is owned
331 * by the table.
332 *
333 ******************************************************************************/
334
335 void acpi_db_unload_acpi_table(char *object_name)
336 {
337 struct acpi_namespace_node *node;
338 acpi_status status;
339
340 /* Translate name to an Named object */
341
342 node = acpi_db_convert_to_node(object_name);
343 if (!node) {
344 return;
345 }
346
347 status = acpi_unload_parent_table(ACPI_CAST_PTR(acpi_handle, node));
348 if (ACPI_SUCCESS(status)) {
349 acpi_os_printf("Parent of [%s] (%p) unloaded and uninstalled\n",
350 object_name, node);
351 } else {
352 acpi_os_printf("%s, while unloading parent table of [%s]\n",
353 acpi_format_exception(status), object_name);
354 }
355 }
356
357 /*******************************************************************************
358 *
359 * FUNCTION: acpi_db_send_notify
360 *
361 * PARAMETERS: name - Name of ACPI object where to send notify
362 * value - Value of the notify to send.
363 *
364 * RETURN: None
365 *
366 * DESCRIPTION: Send an ACPI notification. The value specified is sent to the
367 * named object as an ACPI notify.
368 *
369 ******************************************************************************/
370
371 void acpi_db_send_notify(char *name, u32 value)
372 {
373 struct acpi_namespace_node *node;
374 acpi_status status;
375
376 /* Translate name to an Named object */
377
378 node = acpi_db_convert_to_node(name);
379 if (!node) {
380 return;
381 }
382
383 /* Dispatch the notify if legal */
384
385 if (acpi_ev_is_notify_object(node)) {
386 status = acpi_ev_queue_notify_request(node, value);
387 if (ACPI_FAILURE(status)) {
388 acpi_os_printf("Could not queue notify\n");
389 }
390 } else {
391 acpi_os_printf("Named object [%4.4s] Type %s, "
392 "must be Device/Thermal/Processor type\n",
393 acpi_ut_get_node_name(node),
394 acpi_ut_get_type_name(node->type));
395 }
396 }
397
398 /*******************************************************************************
399 *
400 * FUNCTION: acpi_db_display_interfaces
401 *
402 * PARAMETERS: action_arg - Null, "install", or "remove"
403 * interface_name_arg - Name for install/remove options
404 *
405 * RETURN: None
406 *
407 * DESCRIPTION: Display or modify the global _OSI interface list
408 *
409 ******************************************************************************/
410
411 void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg)
412 {
413 struct acpi_interface_info *next_interface;
414 char *sub_string;
415 acpi_status status;
416
417 /* If no arguments, just display current interface list */
418
419 if (!action_arg) {
420 (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex,
421 ACPI_WAIT_FOREVER);
422
423 next_interface = acpi_gbl_supported_interfaces;
424 while (next_interface) {
425 if (!(next_interface->flags & ACPI_OSI_INVALID)) {
426 acpi_os_printf("%s\n", next_interface->name);
427 }
428
429 next_interface = next_interface->next;
430 }
431
432 acpi_os_release_mutex(acpi_gbl_osi_mutex);
433 return;
434 }
435
436 /* If action_arg exists, so must interface_name_arg */
437
438 if (!interface_name_arg) {
439 acpi_os_printf("Missing Interface Name argument\n");
440 return;
441 }
442
443 /* Uppercase the action for match below */
444
445 acpi_ut_strupr(action_arg);
446
447 /* install - install an interface */
448
449 sub_string = strstr("INSTALL", action_arg);
450 if (sub_string) {
451 status = acpi_install_interface(interface_name_arg);
452 if (ACPI_FAILURE(status)) {
453 acpi_os_printf("%s, while installing \"%s\"\n",
454 acpi_format_exception(status),
455 interface_name_arg);
456 }
457 return;
458 }
459
460 /* remove - remove an interface */
461
462 sub_string = strstr("REMOVE", action_arg);
463 if (sub_string) {
464 status = acpi_remove_interface(interface_name_arg);
465 if (ACPI_FAILURE(status)) {
466 acpi_os_printf("%s, while removing \"%s\"\n",
467 acpi_format_exception(status),
468 interface_name_arg);
469 }
470 return;
471 }
472
473 /* Invalid action_arg */
474
475 acpi_os_printf("Invalid action argument: %s\n", action_arg);
476 return;
477 }
478
479 /*******************************************************************************
480 *
481 * FUNCTION: acpi_db_display_template
482 *
483 * PARAMETERS: buffer_arg - Buffer name or address
484 *
485 * RETURN: None
486 *
487 * DESCRIPTION: Dump a buffer that contains a resource template
488 *
489 ******************************************************************************/
490
491 void acpi_db_display_template(char *buffer_arg)
492 {
493 struct acpi_namespace_node *node;
494 acpi_status status;
495 struct acpi_buffer return_buffer;
496
497 /* Translate buffer_arg to an Named object */
498
499 node = acpi_db_convert_to_node(buffer_arg);
500 if (!node || (node == acpi_gbl_root_node)) {
501 acpi_os_printf("Invalid argument: %s\n", buffer_arg);
502 return;
503 }
504
505 /* We must have a buffer object */
506
507 if (node->type != ACPI_TYPE_BUFFER) {
508 acpi_os_printf
509 ("Not a Buffer object, cannot be a template: %s\n",
510 buffer_arg);
511 return;
512 }
513
514 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
515 return_buffer.pointer = acpi_gbl_db_buffer;
516
517 /* Attempt to convert the raw buffer to a resource list */
518
519 status = acpi_rs_create_resource_list(node->object, &return_buffer);
520
521 acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
522 acpi_dbg_level |= ACPI_LV_RESOURCES;
523
524 if (ACPI_FAILURE(status)) {
525 acpi_os_printf
526 ("Could not convert Buffer to a resource list: %s, %s\n",
527 buffer_arg, acpi_format_exception(status));
528 goto dump_buffer;
529 }
530
531 /* Now we can dump the resource list */
532
533 acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource,
534 return_buffer.pointer));
535
536 dump_buffer:
537 acpi_os_printf("\nRaw data buffer:\n");
538 acpi_ut_debug_dump_buffer((u8 *)node->object->buffer.pointer,
539 node->object->buffer.length,
540 DB_BYTE_DISPLAY, ACPI_UINT32_MAX);
541
542 acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
543 return;
544 }
545
546 /*******************************************************************************
547 *
548 * FUNCTION: acpi_dm_compare_aml_resources
549 *
550 * PARAMETERS: aml1_buffer - Contains first resource list
551 * aml1_buffer_length - Length of first resource list
552 * aml2_buffer - Contains second resource list
553 * aml2_buffer_length - Length of second resource list
554 *
555 * RETURN: None
556 *
557 * DESCRIPTION: Compare two AML resource lists, descriptor by descriptor (in
558 * order to isolate a miscompare to an individual resource)
559 *
560 ******************************************************************************/
561
562 static void
563 acpi_dm_compare_aml_resources(u8 *aml1_buffer,
564 acpi_rsdesc_size aml1_buffer_length,
565 u8 *aml2_buffer,
566 acpi_rsdesc_size aml2_buffer_length)
567 {
568 u8 *aml1;
569 u8 *aml2;
570 u8 *aml1_end;
571 u8 *aml2_end;
572 acpi_rsdesc_size aml1_length;
573 acpi_rsdesc_size aml2_length;
574 acpi_rsdesc_size offset = 0;
575 u8 resource_type;
576 u32 count = 0;
577 u32 i;
578
579 /* Compare overall buffer sizes (may be different due to size rounding) */
580
581 if (aml1_buffer_length != aml2_buffer_length) {
582 acpi_os_printf("**** Buffer length mismatch in converted "
583 "AML: Original %X, New %X ****\n",
584 aml1_buffer_length, aml2_buffer_length);
585 }
586
587 aml1 = aml1_buffer;
588 aml2 = aml2_buffer;
589 aml1_end = aml1_buffer + aml1_buffer_length;
590 aml2_end = aml2_buffer + aml2_buffer_length;
591
592 /* Walk the descriptor lists, comparing each descriptor */
593
594 while ((aml1 < aml1_end) && (aml2 < aml2_end)) {
595
596 /* Get the lengths of each descriptor */
597
598 aml1_length = acpi_ut_get_descriptor_length(aml1);
599 aml2_length = acpi_ut_get_descriptor_length(aml2);
600 resource_type = acpi_ut_get_resource_type(aml1);
601
602 /* Check for descriptor length match */
603
604 if (aml1_length != aml2_length) {
605 acpi_os_printf
606 ("**** Length mismatch in descriptor [%.2X] type %2.2X, "
607 "Offset %8.8X Len1 %X, Len2 %X ****\n", count,
608 resource_type, offset, aml1_length, aml2_length);
609 }
610
611 /* Check for descriptor byte match */
612
613 else if (memcmp(aml1, aml2, aml1_length)) {
614 acpi_os_printf
615 ("**** Data mismatch in descriptor [%.2X] type %2.2X, "
616 "Offset %8.8X ****\n", count, resource_type,
617 offset);
618
619 for (i = 0; i < aml1_length; i++) {
620 if (aml1[i] != aml2[i]) {
621 acpi_os_printf
622 ("Mismatch at byte offset %.2X: is %2.2X, "
623 "should be %2.2X\n", i, aml2[i],
624 aml1[i]);
625 }
626 }
627 }
628
629 /* Exit on end_tag descriptor */
630
631 if (resource_type == ACPI_RESOURCE_NAME_END_TAG) {
632 return;
633 }
634
635 /* Point to next descriptor in each buffer */
636
637 count++;
638 offset += aml1_length;
639 aml1 += aml1_length;
640 aml2 += aml2_length;
641 }
642 }
643
644 /*******************************************************************************
645 *
646 * FUNCTION: acpi_dm_test_resource_conversion
647 *
648 * PARAMETERS: node - Parent device node
649 * name - resource method name (_CRS)
650 *
651 * RETURN: Status
652 *
653 * DESCRIPTION: Compare the original AML with a conversion of the AML to
654 * internal resource list, then back to AML.
655 *
656 ******************************************************************************/
657
658 static acpi_status
659 acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name)
660 {
661 acpi_status status;
662 struct acpi_buffer return_buffer;
663 struct acpi_buffer resource_buffer;
664 struct acpi_buffer new_aml;
665 union acpi_object *original_aml;
666
667 acpi_os_printf("Resource Conversion Comparison:\n");
668
669 new_aml.length = ACPI_ALLOCATE_LOCAL_BUFFER;
670 return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
671 resource_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
672
673 /* Get the original _CRS AML resource template */
674
675 status = acpi_evaluate_object(node, name, NULL, &return_buffer);
676 if (ACPI_FAILURE(status)) {
677 acpi_os_printf("Could not obtain %s: %s\n",
678 name, acpi_format_exception(status));
679 return (status);
680 }
681
682 /* Get the AML resource template, converted to internal resource structs */
683
684 status = acpi_get_current_resources(node, &resource_buffer);
685 if (ACPI_FAILURE(status)) {
686 acpi_os_printf("AcpiGetCurrentResources failed: %s\n",
687 acpi_format_exception(status));
688 goto exit1;
689 }
690
691 /* Convert internal resource list to external AML resource template */
692
693 status = acpi_rs_create_aml_resources(&resource_buffer, &new_aml);
694 if (ACPI_FAILURE(status)) {
695 acpi_os_printf("AcpiRsCreateAmlResources failed: %s\n",
696 acpi_format_exception(status));
697 goto exit2;
698 }
699
700 /* Compare original AML to the newly created AML resource list */
701
702 original_aml = return_buffer.pointer;
703
704 acpi_dm_compare_aml_resources(original_aml->buffer.pointer,
705 (acpi_rsdesc_size)original_aml->buffer.
706 length, new_aml.pointer,
707 (acpi_rsdesc_size)new_aml.length);
708
709 /* Cleanup and exit */
710
711 ACPI_FREE(new_aml.pointer);
712 exit2:
713 ACPI_FREE(resource_buffer.pointer);
714 exit1:
715 ACPI_FREE(return_buffer.pointer);
716 return (status);
717 }
718
719 /*******************************************************************************
720 *
721 * FUNCTION: acpi_db_resource_callback
722 *
723 * PARAMETERS: acpi_walk_resource_callback
724 *
725 * RETURN: Status
726 *
727 * DESCRIPTION: Simple callback to exercise acpi_walk_resources and
728 * acpi_walk_resource_buffer.
729 *
730 ******************************************************************************/
731
732 static acpi_status
733 acpi_db_resource_callback(struct acpi_resource *resource, void *context)
734 {
735
736 return (AE_OK);
737 }
738
739 /*******************************************************************************
740 *
741 * FUNCTION: acpi_db_device_resources
742 *
743 * PARAMETERS: acpi_walk_callback
744 *
745 * RETURN: Status
746 *
747 * DESCRIPTION: Display the _PRT/_CRS/_PRS resources for a device object.
748 *
749 ******************************************************************************/
750
751 static acpi_status
752 acpi_db_device_resources(acpi_handle obj_handle,
753 u32 nesting_level, void *context, void **return_value)
754 {
755 struct acpi_namespace_node *node;
756 struct acpi_namespace_node *prt_node = NULL;
757 struct acpi_namespace_node *crs_node = NULL;
758 struct acpi_namespace_node *prs_node = NULL;
759 struct acpi_namespace_node *aei_node = NULL;
760 char *parent_path;
761 struct acpi_buffer return_buffer;
762 acpi_status status;
763
764 node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
765 parent_path = acpi_ns_get_normalized_pathname(node, TRUE);
766 if (!parent_path) {
767 return (AE_NO_MEMORY);
768 }
769
770 /* Get handles to the resource methods for this device */
771
772 (void)acpi_get_handle(node, METHOD_NAME__PRT,
773 ACPI_CAST_PTR(acpi_handle, &prt_node));
774 (void)acpi_get_handle(node, METHOD_NAME__CRS,
775 ACPI_CAST_PTR(acpi_handle, &crs_node));
776 (void)acpi_get_handle(node, METHOD_NAME__PRS,
777 ACPI_CAST_PTR(acpi_handle, &prs_node));
778 (void)acpi_get_handle(node, METHOD_NAME__AEI,
779 ACPI_CAST_PTR(acpi_handle, &aei_node));
780
781 if (!prt_node && !crs_node && !prs_node && !aei_node) {
782 goto cleanup; /* Nothing to do */
783 }
784
785 acpi_os_printf("\nDevice: %s\n", parent_path);
786
787 /* Prepare for a return object of arbitrary size */
788
789 return_buffer.pointer = acpi_gbl_db_buffer;
790 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
791
792 /* _PRT */
793
794 if (prt_node) {
795 acpi_os_printf("Evaluating _PRT\n");
796
797 status =
798 acpi_evaluate_object(prt_node, NULL, NULL, &return_buffer);
799 if (ACPI_FAILURE(status)) {
800 acpi_os_printf("Could not evaluate _PRT: %s\n",
801 acpi_format_exception(status));
802 goto get_crs;
803 }
804
805 return_buffer.pointer = acpi_gbl_db_buffer;
806 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
807
808 status = acpi_get_irq_routing_table(node, &return_buffer);
809 if (ACPI_FAILURE(status)) {
810 acpi_os_printf("GetIrqRoutingTable failed: %s\n",
811 acpi_format_exception(status));
812 goto get_crs;
813 }
814
815 acpi_rs_dump_irq_list(ACPI_CAST_PTR(u8, acpi_gbl_db_buffer));
816 }
817
818 /* _CRS */
819
820 get_crs:
821 if (crs_node) {
822 acpi_os_printf("Evaluating _CRS\n");
823
824 return_buffer.pointer = acpi_gbl_db_buffer;
825 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
826
827 status =
828 acpi_evaluate_object(crs_node, NULL, NULL, &return_buffer);
829 if (ACPI_FAILURE(status)) {
830 acpi_os_printf("Could not evaluate _CRS: %s\n",
831 acpi_format_exception(status));
832 goto get_prs;
833 }
834
835 /* This code exercises the acpi_walk_resources interface */
836
837 status = acpi_walk_resources(node, METHOD_NAME__CRS,
838 acpi_db_resource_callback, NULL);
839 if (ACPI_FAILURE(status)) {
840 acpi_os_printf("AcpiWalkResources failed: %s\n",
841 acpi_format_exception(status));
842 goto get_prs;
843 }
844
845 /* Get the _CRS resource list (test ALLOCATE buffer) */
846
847 return_buffer.pointer = NULL;
848 return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
849
850 status = acpi_get_current_resources(node, &return_buffer);
851 if (ACPI_FAILURE(status)) {
852 acpi_os_printf("AcpiGetCurrentResources failed: %s\n",
853 acpi_format_exception(status));
854 goto get_prs;
855 }
856
857 /* This code exercises the acpi_walk_resource_buffer interface */
858
859 status = acpi_walk_resource_buffer(&return_buffer,
860 acpi_db_resource_callback,
861 NULL);
862 if (ACPI_FAILURE(status)) {
863 acpi_os_printf("AcpiWalkResourceBuffer failed: %s\n",
864 acpi_format_exception(status));
865 goto end_crs;
866 }
867
868 /* Dump the _CRS resource list */
869
870 acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource,
871 return_buffer.
872 pointer));
873
874 /*
875 * Perform comparison of original AML to newly created AML. This
876 * tests both the AML->Resource conversion and the Resource->AML
877 * conversion.
878 */
879 (void)acpi_dm_test_resource_conversion(node, METHOD_NAME__CRS);
880
881 /* Execute _SRS with the resource list */
882
883 acpi_os_printf("Evaluating _SRS\n");
884
885 status = acpi_set_current_resources(node, &return_buffer);
886 if (ACPI_FAILURE(status)) {
887 acpi_os_printf("AcpiSetCurrentResources failed: %s\n",
888 acpi_format_exception(status));
889 goto end_crs;
890 }
891
892 end_crs:
893 ACPI_FREE(return_buffer.pointer);
894 }
895
896 /* _PRS */
897
898 get_prs:
899 if (prs_node) {
900 acpi_os_printf("Evaluating _PRS\n");
901
902 return_buffer.pointer = acpi_gbl_db_buffer;
903 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
904
905 status =
906 acpi_evaluate_object(prs_node, NULL, NULL, &return_buffer);
907 if (ACPI_FAILURE(status)) {
908 acpi_os_printf("Could not evaluate _PRS: %s\n",
909 acpi_format_exception(status));
910 goto get_aei;
911 }
912
913 return_buffer.pointer = acpi_gbl_db_buffer;
914 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
915
916 status = acpi_get_possible_resources(node, &return_buffer);
917 if (ACPI_FAILURE(status)) {
918 acpi_os_printf("AcpiGetPossibleResources failed: %s\n",
919 acpi_format_exception(status));
920 goto get_aei;
921 }
922
923 acpi_rs_dump_resource_list(ACPI_CAST_PTR
924 (struct acpi_resource,
925 acpi_gbl_db_buffer));
926 }
927
928 /* _AEI */
929
930 get_aei:
931 if (aei_node) {
932 acpi_os_printf("Evaluating _AEI\n");
933
934 return_buffer.pointer = acpi_gbl_db_buffer;
935 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
936
937 status =
938 acpi_evaluate_object(aei_node, NULL, NULL, &return_buffer);
939 if (ACPI_FAILURE(status)) {
940 acpi_os_printf("Could not evaluate _AEI: %s\n",
941 acpi_format_exception(status));
942 goto cleanup;
943 }
944
945 return_buffer.pointer = acpi_gbl_db_buffer;
946 return_buffer.length = ACPI_DEBUG_BUFFER_SIZE;
947
948 status = acpi_get_event_resources(node, &return_buffer);
949 if (ACPI_FAILURE(status)) {
950 acpi_os_printf("AcpiGetEventResources failed: %s\n",
951 acpi_format_exception(status));
952 goto cleanup;
953 }
954
955 acpi_rs_dump_resource_list(ACPI_CAST_PTR
956 (struct acpi_resource,
957 acpi_gbl_db_buffer));
958 }
959
960 cleanup:
961 ACPI_FREE(parent_path);
962 return (AE_OK);
963 }
964
965 /*******************************************************************************
966 *
967 * FUNCTION: acpi_db_display_resources
968 *
969 * PARAMETERS: object_arg - String object name or object pointer.
970 * NULL or "*" means "display resources for
971 * all devices"
972 *
973 * RETURN: None
974 *
975 * DESCRIPTION: Display the resource objects associated with a device.
976 *
977 ******************************************************************************/
978
979 void acpi_db_display_resources(char *object_arg)
980 {
981 struct acpi_namespace_node *node;
982
983 acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
984 acpi_dbg_level |= ACPI_LV_RESOURCES;
985
986 /* Asterisk means "display resources for all devices" */
987
988 if (!object_arg || (!strcmp(object_arg, "*"))) {
989 (void)acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
990 ACPI_UINT32_MAX,
991 acpi_db_device_resources, NULL, NULL,
992 NULL);
993 } else {
994 /* Convert string to object pointer */
995
996 node = acpi_db_convert_to_node(object_arg);
997 if (node) {
998 if (node->type != ACPI_TYPE_DEVICE) {
999 acpi_os_printf
1000 ("%4.4s: Name is not a device object (%s)\n",
1001 node->name.ascii,
1002 acpi_ut_get_type_name(node->type));
1003 } else {
1004 (void)acpi_db_device_resources(node, 0, NULL,
1005 NULL);
1006 }
1007 }
1008 }
1009
1010 acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
1011 }
1012
1013 #if (!ACPI_REDUCED_HARDWARE)
1014 /*******************************************************************************
1015 *
1016 * FUNCTION: acpi_db_generate_gpe
1017 *
1018 * PARAMETERS: gpe_arg - Raw GPE number, ascii string
1019 * block_arg - GPE block number, ascii string
1020 * 0 or 1 for FADT GPE blocks
1021 *
1022 * RETURN: None
1023 *
1024 * DESCRIPTION: Simulate firing of a GPE
1025 *
1026 ******************************************************************************/
1027
1028 void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)
1029 {
1030 u32 block_number = 0;
1031 u32 gpe_number;
1032 struct acpi_gpe_event_info *gpe_event_info;
1033
1034 gpe_number = strtoul(gpe_arg, NULL, 0);
1035
1036 /*
1037 * If no block arg, or block arg == 0 or 1, use the FADT-defined
1038 * GPE blocks.
1039 */
1040 if (block_arg) {
1041 block_number = strtoul(block_arg, NULL, 0);
1042 if (block_number == 1) {
1043 block_number = 0;
1044 }
1045 }
1046
1047 gpe_event_info =
1048 acpi_ev_get_gpe_event_info(ACPI_TO_POINTER(block_number),
1049 gpe_number);
1050 if (!gpe_event_info) {
1051 acpi_os_printf("Invalid GPE\n");
1052 return;
1053 }
1054
1055 (void)acpi_ev_gpe_dispatch(NULL, gpe_event_info, gpe_number);
1056 }
1057
1058 /*******************************************************************************
1059 *
1060 * FUNCTION: acpi_db_generate_sci
1061 *
1062 * PARAMETERS: None
1063 *
1064 * RETURN: None
1065 *
1066 * DESCRIPTION: Simulate an SCI -- just call the SCI dispatch.
1067 *
1068 ******************************************************************************/
1069
1070 void acpi_db_generate_sci(void)
1071 {
1072 acpi_ev_sci_dispatch();
1073 }
1074
1075 #endif /* !ACPI_REDUCED_HARDWARE */
1076
1077 /*******************************************************************************
1078 *
1079 * FUNCTION: acpi_db_trace
1080 *
1081 * PARAMETERS: enable_arg - ENABLE/AML to enable tracer
1082 * DISABLE to disable tracer
1083 * method_arg - Method to trace
1084 * once_arg - Whether trace once
1085 *
1086 * RETURN: None
1087 *
1088 * DESCRIPTION: Control method tracing facility
1089 *
1090 ******************************************************************************/
1091
1092 void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg)
1093 {
1094 u32 debug_level = 0;
1095 u32 debug_layer = 0;
1096 u32 flags = 0;
1097
1098 acpi_ut_strupr(enable_arg);
1099 acpi_ut_strupr(once_arg);
1100
1101 if (method_arg) {
1102 if (acpi_db_trace_method_name) {
1103 ACPI_FREE(acpi_db_trace_method_name);
1104 acpi_db_trace_method_name = NULL;
1105 }
1106
1107 acpi_db_trace_method_name =
1108 ACPI_ALLOCATE(strlen(method_arg) + 1);
1109 if (!acpi_db_trace_method_name) {
1110 acpi_os_printf("Failed to allocate method name (%s)\n",
1111 method_arg);
1112 return;
1113 }
1114
1115 strcpy(acpi_db_trace_method_name, method_arg);
1116 }
1117
1118 if (!strcmp(enable_arg, "ENABLE") ||
1119 !strcmp(enable_arg, "METHOD") || !strcmp(enable_arg, "OPCODE")) {
1120 if (!strcmp(enable_arg, "ENABLE")) {
1121
1122 /* Inherit current console settings */
1123
1124 debug_level = acpi_gbl_db_console_debug_level;
1125 debug_layer = acpi_dbg_layer;
1126 } else {
1127 /* Restrict console output to trace points only */
1128
1129 debug_level = ACPI_LV_TRACE_POINT;
1130 debug_layer = ACPI_EXECUTER;
1131 }
1132
1133 flags = ACPI_TRACE_ENABLED;
1134
1135 if (!strcmp(enable_arg, "OPCODE")) {
1136 flags |= ACPI_TRACE_OPCODE;
1137 }
1138
1139 if (once_arg && !strcmp(once_arg, "ONCE")) {
1140 flags |= ACPI_TRACE_ONESHOT;
1141 }
1142 }
1143
1144 (void)acpi_debug_trace(acpi_db_trace_method_name,
1145 debug_level, debug_layer, flags);
1146 }
Linux with added FPC-III support