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sky2: version 1.3
[linux-2.6/verdex.git] / drivers / acpi / namespace / nsdump.c
bloba2807317a84b0295a514f9bbfbd12d071fa73ae6
1 /******************************************************************************
2 *
3 * Module Name: nsdump - table dumping routines for debug
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2006, R. Byron Moore
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44 #include <acpi/acpi.h>
45 #include <acpi/acnamesp.h>
46 #include <acpi/acparser.h>
47
48 #define _COMPONENT ACPI_NAMESPACE
49 ACPI_MODULE_NAME("nsdump")
50
51 /* Local prototypes */
52 #ifdef ACPI_OBSOLETE_FUNCTIONS
53 void acpi_ns_dump_root_devices(void);
54
55 static acpi_status
56 acpi_ns_dump_one_device(acpi_handle obj_handle,
57 u32 level, void *context, void **return_value);
58 #endif
59
60 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
61 /*******************************************************************************
62 *
63 * FUNCTION: acpi_ns_print_pathname
64 *
65 * PARAMETERS: num_segments - Number of ACPI name segments
66 * Pathname - The compressed (internal) path
67 *
68 * RETURN: None
69 *
70 * DESCRIPTION: Print an object's full namespace pathname
71 *
72 ******************************************************************************/
73
74 void acpi_ns_print_pathname(u32 num_segments, char *pathname)
75 {
76 acpi_native_uint i;
77
78 ACPI_FUNCTION_NAME("ns_print_pathname");
79
80 if (!(acpi_dbg_level & ACPI_LV_NAMES)
81 || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
82 return;
83 }
84
85 /* Print the entire name */
86
87 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
88
89 while (num_segments) {
90 for (i = 0; i < 4; i++) {
91 ACPI_IS_PRINT(pathname[i]) ?
92 acpi_os_printf("%c", pathname[i]) :
93 acpi_os_printf("?");
94 }
95
96 pathname += ACPI_NAME_SIZE;
97 num_segments--;
98 if (num_segments) {
99 acpi_os_printf(".");
100 }
101 }
102
103 acpi_os_printf("]\n");
104 }
105
106 /*******************************************************************************
107 *
108 * FUNCTION: acpi_ns_dump_pathname
109 *
110 * PARAMETERS: Handle - Object
111 * Msg - Prefix message
112 * Level - Desired debug level
113 * Component - Caller's component ID
114 *
115 * RETURN: None
116 *
117 * DESCRIPTION: Print an object's full namespace pathname
118 * Manages allocation/freeing of a pathname buffer
119 *
120 ******************************************************************************/
121
122 void
123 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
124 {
125
126 ACPI_FUNCTION_TRACE("ns_dump_pathname");
127
128 /* Do this only if the requested debug level and component are enabled */
129
130 if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
131 return_VOID;
132 }
133
134 /* Convert handle to a full pathname and print it (with supplied message) */
135
136 acpi_ns_print_node_pathname(handle, msg);
137 acpi_os_printf("\n");
138 return_VOID;
139 }
140
141 /*******************************************************************************
142 *
143 * FUNCTION: acpi_ns_dump_one_object
144 *
145 * PARAMETERS: obj_handle - Node to be dumped
146 * Level - Nesting level of the handle
147 * Context - Passed into walk_namespace
148 * return_value - Not used
149 *
150 * RETURN: Status
151 *
152 * DESCRIPTION: Dump a single Node
153 * This procedure is a user_function called by acpi_ns_walk_namespace.
154 *
155 ******************************************************************************/
156
157 acpi_status
158 acpi_ns_dump_one_object(acpi_handle obj_handle,
159 u32 level, void *context, void **return_value)
160 {
161 struct acpi_walk_info *info = (struct acpi_walk_info *)context;
162 struct acpi_namespace_node *this_node;
163 union acpi_operand_object *obj_desc = NULL;
164 acpi_object_type obj_type;
165 acpi_object_type type;
166 u32 bytes_to_dump;
167 u32 dbg_level;
168 u32 i;
169
170 ACPI_FUNCTION_NAME("ns_dump_one_object");
171
172 /* Is output enabled? */
173
174 if (!(acpi_dbg_level & info->debug_level)) {
175 return (AE_OK);
176 }
177
178 if (!obj_handle) {
179 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
180 return (AE_OK);
181 }
182
183 this_node = acpi_ns_map_handle_to_node(obj_handle);
184 type = this_node->type;
185
186 /* Check if the owner matches */
187
188 if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
189 (info->owner_id != this_node->owner_id)) {
190 return (AE_OK);
191 }
192
193 if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
194 /* Indent the object according to the level */
195
196 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
197
198 /* Check the node type and name */
199
200 if (type > ACPI_TYPE_LOCAL_MAX) {
201 ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X",
202 type));
203 }
204
205 if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
206 ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
207 this_node->name.integer));
208 }
209
210 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
211 }
212
213 /*
214 * Now we can print out the pertinent information
215 */
216 acpi_os_printf(" %-12s %p %2.2X ",
217 acpi_ut_get_type_name(type), this_node,
218 this_node->owner_id);
219
220 dbg_level = acpi_dbg_level;
221 acpi_dbg_level = 0;
222 obj_desc = acpi_ns_get_attached_object(this_node);
223 acpi_dbg_level = dbg_level;
224
225 switch (info->display_type & ACPI_DISPLAY_MASK) {
226 case ACPI_DISPLAY_SUMMARY:
227
228 if (!obj_desc) {
229 /* No attached object, we are done */
230
231 acpi_os_printf("\n");
232 return (AE_OK);
233 }
234
235 switch (type) {
236 case ACPI_TYPE_PROCESSOR:
237
238 acpi_os_printf("ID %X Len %.4X Addr %p\n",
239 obj_desc->processor.proc_id,
240 obj_desc->processor.length,
241 (char *)obj_desc->processor.address);
242 break;
243
244 case ACPI_TYPE_DEVICE:
245
246 acpi_os_printf("Notify Object: %p\n", obj_desc);
247 break;
248
249 case ACPI_TYPE_METHOD:
250
251 acpi_os_printf("Args %X Len %.4X Aml %p\n",
252 (u32) obj_desc->method.param_count,
253 obj_desc->method.aml_length,
254 obj_desc->method.aml_start);
255 break;
256
257 case ACPI_TYPE_INTEGER:
258
259 acpi_os_printf("= %8.8X%8.8X\n",
260 ACPI_FORMAT_UINT64(obj_desc->integer.
261 value));
262 break;
263
264 case ACPI_TYPE_PACKAGE:
265
266 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
267 acpi_os_printf("Elements %.2X\n",
268 obj_desc->package.count);
269 } else {
270 acpi_os_printf("[Length not yet evaluated]\n");
271 }
272 break;
273
274 case ACPI_TYPE_BUFFER:
275
276 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
277 acpi_os_printf("Len %.2X",
278 obj_desc->buffer.length);
279
280 /* Dump some of the buffer */
281
282 if (obj_desc->buffer.length > 0) {
283 acpi_os_printf(" =");
284 for (i = 0;
285 (i < obj_desc->buffer.length
286 && i < 12); i++) {
287 acpi_os_printf(" %.2hX",
288 obj_desc->buffer.
289 pointer[i]);
290 }
291 }
292 acpi_os_printf("\n");
293 } else {
294 acpi_os_printf("[Length not yet evaluated]\n");
295 }
296 break;
297
298 case ACPI_TYPE_STRING:
299
300 acpi_os_printf("Len %.2X ", obj_desc->string.length);
301 acpi_ut_print_string(obj_desc->string.pointer, 32);
302 acpi_os_printf("\n");
303 break;
304
305 case ACPI_TYPE_REGION:
306
307 acpi_os_printf("[%s]",
308 acpi_ut_get_region_name(obj_desc->region.
309 space_id));
310 if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
311 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
312 ACPI_FORMAT_UINT64(obj_desc->
313 region.
314 address),
315 obj_desc->region.length);
316 } else {
317 acpi_os_printf
318 (" [Address/Length not yet evaluated]\n");
319 }
320 break;
321
322 case ACPI_TYPE_LOCAL_REFERENCE:
323
324 acpi_os_printf("[%s]\n",
325 acpi_ps_get_opcode_name(obj_desc->
326 reference.
327 opcode));
328 break;
329
330 case ACPI_TYPE_BUFFER_FIELD:
331
332 if (obj_desc->buffer_field.buffer_obj &&
333 obj_desc->buffer_field.buffer_obj->buffer.node) {
334 acpi_os_printf("Buf [%4.4s]",
335 acpi_ut_get_node_name(obj_desc->
336 buffer_field.
337 buffer_obj->
338 buffer.
339 node));
340 }
341 break;
342
343 case ACPI_TYPE_LOCAL_REGION_FIELD:
344
345 acpi_os_printf("Rgn [%4.4s]",
346 acpi_ut_get_node_name(obj_desc->
347 common_field.
348 region_obj->region.
349 node));
350 break;
351
352 case ACPI_TYPE_LOCAL_BANK_FIELD:
353
354 acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
355 acpi_ut_get_node_name(obj_desc->
356 common_field.
357 region_obj->region.
358 node),
359 acpi_ut_get_node_name(obj_desc->
360 bank_field.
361 bank_obj->
362 common_field.
363 node));
364 break;
365
366 case ACPI_TYPE_LOCAL_INDEX_FIELD:
367
368 acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
369 acpi_ut_get_node_name(obj_desc->
370 index_field.
371 index_obj->
372 common_field.node),
373 acpi_ut_get_node_name(obj_desc->
374 index_field.
375 data_obj->
376 common_field.
377 node));
378 break;
379
380 case ACPI_TYPE_LOCAL_ALIAS:
381 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
382
383 acpi_os_printf("Target %4.4s (%p)\n",
384 acpi_ut_get_node_name(obj_desc),
385 obj_desc);
386 break;
387
388 default:
389
390 acpi_os_printf("Object %p\n", obj_desc);
391 break;
392 }
393
394 /* Common field handling */
395
396 switch (type) {
397 case ACPI_TYPE_BUFFER_FIELD:
398 case ACPI_TYPE_LOCAL_REGION_FIELD:
399 case ACPI_TYPE_LOCAL_BANK_FIELD:
400 case ACPI_TYPE_LOCAL_INDEX_FIELD:
401
402 acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
403 (obj_desc->common_field.
404 base_byte_offset * 8)
405 +
406 obj_desc->common_field.
407 start_field_bit_offset,
408 obj_desc->common_field.bit_length,
409 obj_desc->common_field.
410 access_byte_width);
411 break;
412
413 default:
414 break;
415 }
416 break;
417
418 case ACPI_DISPLAY_OBJECTS:
419
420 acpi_os_printf("O:%p", obj_desc);
421 if (!obj_desc) {
422 /* No attached object, we are done */
423
424 acpi_os_printf("\n");
425 return (AE_OK);
426 }
427
428 acpi_os_printf("(R%d)", obj_desc->common.reference_count);
429
430 switch (type) {
431 case ACPI_TYPE_METHOD:
432
433 /* Name is a Method and its AML offset/length are set */
434
435 acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
436 obj_desc->method.aml_length);
437 break;
438
439 case ACPI_TYPE_INTEGER:
440
441 acpi_os_printf(" I:%8.8X8.8%X\n",
442 ACPI_FORMAT_UINT64(obj_desc->integer.
443 value));
444 break;
445
446 case ACPI_TYPE_STRING:
447
448 acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
449 obj_desc->string.length);
450 break;
451
452 case ACPI_TYPE_BUFFER:
453
454 acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
455 obj_desc->buffer.length);
456 break;
457
458 default:
459
460 acpi_os_printf("\n");
461 break;
462 }
463 break;
464
465 default:
466 acpi_os_printf("\n");
467 break;
468 }
469
470 /* If debug turned off, done */
471
472 if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
473 return (AE_OK);
474 }
475
476 /* If there is an attached object, display it */
477
478 dbg_level = acpi_dbg_level;
479 acpi_dbg_level = 0;
480 obj_desc = acpi_ns_get_attached_object(this_node);
481 acpi_dbg_level = dbg_level;
482
483 /* Dump attached objects */
484
485 while (obj_desc) {
486 obj_type = ACPI_TYPE_INVALID;
487 acpi_os_printf("Attached Object %p: ", obj_desc);
488
489 /* Decode the type of attached object and dump the contents */
490
491 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
492 case ACPI_DESC_TYPE_NAMED:
493
494 acpi_os_printf("(Ptr to Node)\n");
495 bytes_to_dump = sizeof(struct acpi_namespace_node);
496 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
497 break;
498
499 case ACPI_DESC_TYPE_OPERAND:
500
501 obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
502
503 if (obj_type > ACPI_TYPE_LOCAL_MAX) {
504 acpi_os_printf
505 ("(Ptr to ACPI Object type %X [UNKNOWN])\n",
506 obj_type);
507 bytes_to_dump = 32;
508 } else {
509 acpi_os_printf
510 ("(Ptr to ACPI Object type %X [%s])\n",
511 obj_type, acpi_ut_get_type_name(obj_type));
512 bytes_to_dump =
513 sizeof(union acpi_operand_object);
514 }
515
516 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
517 break;
518
519 default:
520
521 break;
522 }
523
524 /* If value is NOT an internal object, we are done */
525
526 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
527 ACPI_DESC_TYPE_OPERAND) {
528 goto cleanup;
529 }
530
531 /*
532 * Valid object, get the pointer to next level, if any
533 */
534 switch (obj_type) {
535 case ACPI_TYPE_BUFFER:
536 case ACPI_TYPE_STRING:
537 /*
538 * NOTE: takes advantage of common fields between string/buffer
539 */
540 bytes_to_dump = obj_desc->string.length;
541 obj_desc = (void *)obj_desc->string.pointer;
542 acpi_os_printf("(Buffer/String pointer %p length %X)\n",
543 obj_desc, bytes_to_dump);
544 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
545 goto cleanup;
546
547 case ACPI_TYPE_BUFFER_FIELD:
548 obj_desc =
549 (union acpi_operand_object *)obj_desc->buffer_field.
550 buffer_obj;
551 break;
552
553 case ACPI_TYPE_PACKAGE:
554 obj_desc = (void *)obj_desc->package.elements;
555 break;
556
557 case ACPI_TYPE_METHOD:
558 obj_desc = (void *)obj_desc->method.aml_start;
559 break;
560
561 case ACPI_TYPE_LOCAL_REGION_FIELD:
562 obj_desc = (void *)obj_desc->field.region_obj;
563 break;
564
565 case ACPI_TYPE_LOCAL_BANK_FIELD:
566 obj_desc = (void *)obj_desc->bank_field.region_obj;
567 break;
568
569 case ACPI_TYPE_LOCAL_INDEX_FIELD:
570 obj_desc = (void *)obj_desc->index_field.index_obj;
571 break;
572
573 default:
574 goto cleanup;
575 }
576
577 obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
578 }
579
580 cleanup:
581 acpi_os_printf("\n");
582 return (AE_OK);
583 }
584
585 #ifdef ACPI_FUTURE_USAGE
586 /*******************************************************************************
587 *
588 * FUNCTION: acpi_ns_dump_objects
589 *
590 * PARAMETERS: Type - Object type to be dumped
591 * display_type - 0 or ACPI_DISPLAY_SUMMARY
592 * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
593 * for an effectively unlimited depth.
594 * owner_id - Dump only objects owned by this ID. Use
595 * ACPI_UINT32_MAX to match all owners.
596 * start_handle - Where in namespace to start/end search
597 *
598 * RETURN: None
599 *
600 * DESCRIPTION: Dump typed objects within the loaded namespace.
601 * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
602 *
603 ******************************************************************************/
604
605 void
606 acpi_ns_dump_objects(acpi_object_type type,
607 u8 display_type,
608 u32 max_depth,
609 acpi_owner_id owner_id, acpi_handle start_handle)
610 {
611 struct acpi_walk_info info;
612
613 ACPI_FUNCTION_ENTRY();
614
615 info.debug_level = ACPI_LV_TABLES;
616 info.owner_id = owner_id;
617 info.display_type = display_type;
618
619 (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
620 ACPI_NS_WALK_NO_UNLOCK,
621 acpi_ns_dump_one_object, (void *)&info,
622 NULL);
623 }
624 #endif /* ACPI_FUTURE_USAGE */
625
626 /*******************************************************************************
627 *
628 * FUNCTION: acpi_ns_dump_entry
629 *
630 * PARAMETERS: Handle - Node to be dumped
631 * debug_level - Output level
632 *
633 * RETURN: None
634 *
635 * DESCRIPTION: Dump a single Node
636 *
637 ******************************************************************************/
638
639 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
640 {
641 struct acpi_walk_info info;
642
643 ACPI_FUNCTION_ENTRY();
644
645 info.debug_level = debug_level;
646 info.owner_id = ACPI_OWNER_ID_MAX;
647 info.display_type = ACPI_DISPLAY_SUMMARY;
648
649 (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
650 }
651
652 #ifdef ACPI_ASL_COMPILER
653 /*******************************************************************************
654 *
655 * FUNCTION: acpi_ns_dump_tables
656 *
657 * PARAMETERS: search_base - Root of subtree to be dumped, or
658 * NS_ALL to dump the entire namespace
659 * max_depth - Maximum depth of dump. Use INT_MAX
660 * for an effectively unlimited depth.
661 *
662 * RETURN: None
663 *
664 * DESCRIPTION: Dump the name space, or a portion of it.
665 *
666 ******************************************************************************/
667
668 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
669 {
670 acpi_handle search_handle = search_base;
671
672 ACPI_FUNCTION_TRACE("ns_dump_tables");
673
674 if (!acpi_gbl_root_node) {
675 /*
676 * If the name space has not been initialized,
677 * there is nothing to dump.
678 */
679 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
680 "namespace not initialized!\n"));
681 return_VOID;
682 }
683
684 if (ACPI_NS_ALL == search_base) {
685 /* Entire namespace */
686
687 search_handle = acpi_gbl_root_node;
688 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
689 }
690
691 acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
692 ACPI_OWNER_ID_MAX, search_handle);
693 return_VOID;
694 }
695 #endif /* _ACPI_ASL_COMPILER */
696 #endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */
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