xref: /openbmc/linux/drivers/acpi/acpica/dbinput.c (revision ae0be8de)
1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
2 /*******************************************************************************
3  *
4  * Module Name: dbinput - user front-end to the AML debugger
5  *
6  ******************************************************************************/
7 
8 #include <acpi/acpi.h>
9 #include "accommon.h"
10 #include "acdebug.h"
11 
12 #ifdef ACPI_APPLICATION
13 #include "acapps.h"
14 #endif
15 
16 #define _COMPONENT          ACPI_CA_DEBUGGER
17 ACPI_MODULE_NAME("dbinput")
18 
19 /* Local prototypes */
20 static u32 acpi_db_get_line(char *input_buffer);
21 
22 static u32 acpi_db_match_command(char *user_command);
23 
24 static void acpi_db_display_command_info(const char *command, u8 display_all);
25 
26 static void acpi_db_display_help(char *command);
27 
28 static u8
29 acpi_db_match_command_help(const char *command,
30 			   const struct acpi_db_command_help *help);
31 
32 /*
33  * Top-level debugger commands.
34  *
35  * This list of commands must match the string table below it
36  */
37 enum acpi_ex_debugger_commands {
38 	CMD_NOT_FOUND = 0,
39 	CMD_NULL,
40 	CMD_ALLOCATIONS,
41 	CMD_ARGS,
42 	CMD_ARGUMENTS,
43 	CMD_BREAKPOINT,
44 	CMD_BUSINFO,
45 	CMD_CALL,
46 	CMD_DEBUG,
47 	CMD_DISASSEMBLE,
48 	CMD_DISASM,
49 	CMD_DUMP,
50 	CMD_EVALUATE,
51 	CMD_EXECUTE,
52 	CMD_EXIT,
53 	CMD_FIND,
54 	CMD_GO,
55 	CMD_HANDLERS,
56 	CMD_HELP,
57 	CMD_HELP2,
58 	CMD_HISTORY,
59 	CMD_HISTORY_EXE,
60 	CMD_HISTORY_LAST,
61 	CMD_INFORMATION,
62 	CMD_INTEGRITY,
63 	CMD_INTO,
64 	CMD_LEVEL,
65 	CMD_LIST,
66 	CMD_LOCALS,
67 	CMD_LOCKS,
68 	CMD_METHODS,
69 	CMD_NAMESPACE,
70 	CMD_NOTIFY,
71 	CMD_OBJECTS,
72 	CMD_OSI,
73 	CMD_OWNER,
74 	CMD_PATHS,
75 	CMD_PREDEFINED,
76 	CMD_PREFIX,
77 	CMD_QUIT,
78 	CMD_REFERENCES,
79 	CMD_RESOURCES,
80 	CMD_RESULTS,
81 	CMD_SET,
82 	CMD_STATS,
83 	CMD_STOP,
84 	CMD_TABLES,
85 	CMD_TEMPLATE,
86 	CMD_TRACE,
87 	CMD_TREE,
88 	CMD_TYPE,
89 #ifdef ACPI_APPLICATION
90 	CMD_ENABLEACPI,
91 	CMD_EVENT,
92 	CMD_GPE,
93 	CMD_GPES,
94 	CMD_SCI,
95 	CMD_SLEEP,
96 
97 	CMD_CLOSE,
98 	CMD_LOAD,
99 	CMD_OPEN,
100 	CMD_UNLOAD,
101 
102 	CMD_TERMINATE,
103 	CMD_BACKGROUND,
104 	CMD_THREADS,
105 
106 	CMD_TEST,
107 #endif
108 };
109 
110 #define CMD_FIRST_VALID     2
111 
112 /* Second parameter is the required argument count */
113 
114 static const struct acpi_db_command_info acpi_gbl_db_commands[] = {
115 	{"<NOT FOUND>", 0},
116 	{"<NULL>", 0},
117 	{"ALLOCATIONS", 0},
118 	{"ARGS", 0},
119 	{"ARGUMENTS", 0},
120 	{"BREAKPOINT", 1},
121 	{"BUSINFO", 0},
122 	{"CALL", 0},
123 	{"DEBUG", 1},
124 	{"DISASSEMBLE", 1},
125 	{"DISASM", 1},
126 	{"DUMP", 1},
127 	{"EVALUATE", 1},
128 	{"EXECUTE", 1},
129 	{"EXIT", 0},
130 	{"FIND", 1},
131 	{"GO", 0},
132 	{"HANDLERS", 0},
133 	{"HELP", 0},
134 	{"?", 0},
135 	{"HISTORY", 0},
136 	{"!", 1},
137 	{"!!", 0},
138 	{"INFORMATION", 0},
139 	{"INTEGRITY", 0},
140 	{"INTO", 0},
141 	{"LEVEL", 0},
142 	{"LIST", 0},
143 	{"LOCALS", 0},
144 	{"LOCKS", 0},
145 	{"METHODS", 0},
146 	{"NAMESPACE", 0},
147 	{"NOTIFY", 2},
148 	{"OBJECTS", 0},
149 	{"OSI", 0},
150 	{"OWNER", 1},
151 	{"PATHS", 0},
152 	{"PREDEFINED", 0},
153 	{"PREFIX", 0},
154 	{"QUIT", 0},
155 	{"REFERENCES", 1},
156 	{"RESOURCES", 0},
157 	{"RESULTS", 0},
158 	{"SET", 3},
159 	{"STATS", 1},
160 	{"STOP", 0},
161 	{"TABLES", 0},
162 	{"TEMPLATE", 1},
163 	{"TRACE", 1},
164 	{"TREE", 0},
165 	{"TYPE", 1},
166 #ifdef ACPI_APPLICATION
167 	{"ENABLEACPI", 0},
168 	{"EVENT", 1},
169 	{"GPE", 1},
170 	{"GPES", 0},
171 	{"SCI", 0},
172 	{"SLEEP", 0},
173 
174 	{"CLOSE", 0},
175 	{"LOAD", 1},
176 	{"OPEN", 1},
177 	{"UNLOAD", 1},
178 
179 	{"TERMINATE", 0},
180 	{"BACKGROUND", 1},
181 	{"THREADS", 3},
182 
183 	{"TEST", 1},
184 #endif
185 	{NULL, 0}
186 };
187 
188 /*
189  * Help for all debugger commands. First argument is the number of lines
190  * of help to output for the command.
191  *
192  * Note: Some commands are not supported by the kernel-level version of
193  * the debugger.
194  */
195 static const struct acpi_db_command_help acpi_gbl_db_command_help[] = {
196 	{0, "\nNamespace Access:", "\n"},
197 	{1, "  Businfo", "Display system bus info\n"},
198 	{1, "  Disassemble <Method>", "Disassemble a control method\n"},
199 	{1, "  Find <AcpiName> (? is wildcard)",
200 	 "Find ACPI name(s) with wildcards\n"},
201 	{1, "  Integrity", "Validate namespace integrity\n"},
202 	{1, "  Methods", "Display list of loaded control methods\n"},
203 	{1, "  Namespace [Object] [Depth]",
204 	 "Display loaded namespace tree/subtree\n"},
205 	{1, "  Notify <Object> <Value>", "Send a notification on Object\n"},
206 	{1, "  Objects [ObjectType]",
207 	 "Display summary of all objects or just given type\n"},
208 	{1, "  Owner <OwnerId> [Depth]",
209 	 "Display loaded namespace by object owner\n"},
210 	{1, "  Paths", "Display full pathnames of namespace objects\n"},
211 	{1, "  Predefined", "Check all predefined names\n"},
212 	{1, "  Prefix [<Namepath>]", "Set or Get current execution prefix\n"},
213 	{1, "  References <Addr>", "Find all references to object at addr\n"},
214 	{1, "  Resources [DeviceName]",
215 	 "Display Device resources (no arg = all devices)\n"},
216 	{1, "  Set N <NamedObject> <Value>", "Set value for named integer\n"},
217 	{1, "  Template <Object>", "Format/dump a Buffer/ResourceTemplate\n"},
218 	{1, "  Type <Object>", "Display object type\n"},
219 
220 	{0, "\nControl Method Execution:", "\n"},
221 	{1, "  Evaluate <Namepath> [Arguments]",
222 	 "Evaluate object or control method\n"},
223 	{1, "  Execute <Namepath> [Arguments]", "Synonym for Evaluate\n"},
224 #ifdef ACPI_APPLICATION
225 	{1, "  Background <Namepath> [Arguments]",
226 	 "Evaluate object/method in a separate thread\n"},
227 	{1, "  Thread <Threads><Loops><NamePath>",
228 	 "Spawn threads to execute method(s)\n"},
229 #endif
230 	{1, "  Debug <Namepath> [Arguments]", "Single-Step a control method\n"},
231 	{7, "  [Arguments] formats:", "Control method argument formats\n"},
232 	{1, "     Hex Integer", "Integer\n"},
233 	{1, "     \"Ascii String\"", "String\n"},
234 	{1, "     (Hex Byte List)", "Buffer\n"},
235 	{1, "         (01 42 7A BF)", "Buffer example (4 bytes)\n"},
236 	{1, "     [Package Element List]", "Package\n"},
237 	{1, "         [0x01 0x1234 \"string\"]",
238 	 "Package example (3 elements)\n"},
239 
240 	{0, "\nMiscellaneous:", "\n"},
241 	{1, "  Allocations", "Display list of current memory allocations\n"},
242 	{2, "  Dump <Address>|<Namepath>", "\n"},
243 	{0, "       [Byte|Word|Dword|Qword]",
244 	 "Display ACPI objects or memory\n"},
245 	{1, "  Handlers", "Info about global handlers\n"},
246 	{1, "  Help [Command]", "This help screen or individual command\n"},
247 	{1, "  History", "Display command history buffer\n"},
248 	{1, "  Level <DebugLevel>] [console]",
249 	 "Get/Set debug level for file or console\n"},
250 	{1, "  Locks", "Current status of internal mutexes\n"},
251 	{1, "  Osi [Install|Remove <name>]",
252 	 "Display or modify global _OSI list\n"},
253 	{1, "  Quit or Exit", "Exit this command\n"},
254 	{8, "  Stats <SubCommand>",
255 	 "Display namespace and memory statistics\n"},
256 	{1, "     Allocations", "Display list of current memory allocations\n"},
257 	{1, "     Memory", "Dump internal memory lists\n"},
258 	{1, "     Misc", "Namespace search and mutex stats\n"},
259 	{1, "     Objects", "Summary of namespace objects\n"},
260 	{1, "     Sizes", "Sizes for each of the internal objects\n"},
261 	{1, "     Stack", "Display CPU stack usage\n"},
262 	{1, "     Tables", "Info about current ACPI table(s)\n"},
263 	{1, "  Tables", "Display info about loaded ACPI tables\n"},
264 #ifdef ACPI_APPLICATION
265 	{1, "  Terminate", "Delete namespace and all internal objects\n"},
266 #endif
267 	{1, "  ! <CommandNumber>", "Execute command from history buffer\n"},
268 	{1, "  !!", "Execute last command again\n"},
269 
270 	{0, "\nMethod and Namespace Debugging:", "\n"},
271 	{5, "  Trace <State> [<Namepath>] [Once]",
272 	 "Trace control method execution\n"},
273 	{1, "     Enable", "Enable all messages\n"},
274 	{1, "     Disable", "Disable tracing\n"},
275 	{1, "     Method", "Enable method execution messages\n"},
276 	{1, "     Opcode", "Enable opcode execution messages\n"},
277 	{3, "  Test <TestName>", "Invoke a debug test\n"},
278 	{1, "     Objects", "Read/write/compare all namespace data objects\n"},
279 	{1, "     Predefined",
280 	 "Validate all ACPI predefined names (_STA, etc.)\n"},
281 	{1, "  Execute predefined",
282 	 "Execute all predefined (public) methods\n"},
283 
284 	{0, "\nControl Method Single-Step Execution:", "\n"},
285 	{1, "  Arguments (or Args)", "Display method arguments\n"},
286 	{1, "  Breakpoint <AmlOffset>", "Set an AML execution breakpoint\n"},
287 	{1, "  Call", "Run to next control method invocation\n"},
288 	{1, "  Go", "Allow method to run to completion\n"},
289 	{1, "  Information", "Display info about the current method\n"},
290 	{1, "  Into", "Step into (not over) a method call\n"},
291 	{1, "  List [# of Aml Opcodes]", "Display method ASL statements\n"},
292 	{1, "  Locals", "Display method local variables\n"},
293 	{1, "  Results", "Display method result stack\n"},
294 	{1, "  Set <A|L> <#> <Value>", "Set method data (Arguments/Locals)\n"},
295 	{1, "  Stop", "Terminate control method\n"},
296 	{1, "  Tree", "Display control method calling tree\n"},
297 	{1, "  <Enter>", "Single step next AML opcode (over calls)\n"},
298 
299 #ifdef ACPI_APPLICATION
300 	{0, "\nFile Operations:", "\n"},
301 	{1, "  Close", "Close debug output file\n"},
302 	{1, "  Load <Input Filename>", "Load ACPI table from a file\n"},
303 	{1, "  Open <Output Filename>", "Open a file for debug output\n"},
304 	{1, "  Unload <Namepath>",
305 	 "Unload an ACPI table via namespace object\n"},
306 
307 	{0, "\nHardware Simulation:", "\n"},
308 	{1, "  EnableAcpi", "Enable ACPI (hardware) mode\n"},
309 	{1, "  Event <F|G> <Value>", "Generate AcpiEvent (Fixed/GPE)\n"},
310 	{1, "  Gpe <GpeNum> [GpeBlockDevice]", "Simulate a GPE\n"},
311 	{1, "  Gpes", "Display info on all GPE devices\n"},
312 	{1, "  Sci", "Generate an SCI\n"},
313 	{1, "  Sleep [SleepState]", "Simulate sleep/wake sequence(s) (0-5)\n"},
314 #endif
315 	{0, NULL, NULL}
316 };
317 
318 /*******************************************************************************
319  *
320  * FUNCTION:    acpi_db_match_command_help
321  *
322  * PARAMETERS:  command             - Command string to match
323  *              help                - Help table entry to attempt match
324  *
325  * RETURN:      TRUE if command matched, FALSE otherwise
326  *
327  * DESCRIPTION: Attempt to match a command in the help table in order to
328  *              print help information for a single command.
329  *
330  ******************************************************************************/
331 
332 static u8
333 acpi_db_match_command_help(const char *command,
334 			   const struct acpi_db_command_help *help)
335 {
336 	char *invocation = help->invocation;
337 	u32 line_count;
338 
339 	/* Valid commands in the help table begin with a couple of spaces */
340 
341 	if (*invocation != ' ') {
342 		return (FALSE);
343 	}
344 
345 	while (*invocation == ' ') {
346 		invocation++;
347 	}
348 
349 	/* Match command name (full command or substring) */
350 
351 	while ((*command) && (*invocation) && (*invocation != ' ')) {
352 		if (tolower((int)*command) != tolower((int)*invocation)) {
353 			return (FALSE);
354 		}
355 
356 		invocation++;
357 		command++;
358 	}
359 
360 	/* Print the appropriate number of help lines */
361 
362 	line_count = help->line_count;
363 	while (line_count) {
364 		acpi_os_printf("%-38s : %s", help->invocation,
365 			       help->description);
366 		help++;
367 		line_count--;
368 	}
369 
370 	return (TRUE);
371 }
372 
373 /*******************************************************************************
374  *
375  * FUNCTION:    acpi_db_display_command_info
376  *
377  * PARAMETERS:  command             - Command string to match
378  *              display_all         - Display all matching commands, or just
379  *                                    the first one (substring match)
380  *
381  * RETURN:      None
382  *
383  * DESCRIPTION: Display help information for a Debugger command.
384  *
385  ******************************************************************************/
386 
387 static void acpi_db_display_command_info(const char *command, u8 display_all)
388 {
389 	const struct acpi_db_command_help *next;
390 	u8 matched;
391 
392 	next = acpi_gbl_db_command_help;
393 	while (next->invocation) {
394 		matched = acpi_db_match_command_help(command, next);
395 		if (!display_all && matched) {
396 			return;
397 		}
398 
399 		next++;
400 	}
401 }
402 
403 /*******************************************************************************
404  *
405  * FUNCTION:    acpi_db_display_help
406  *
407  * PARAMETERS:  command             - Optional command string to display help.
408  *                                    if not specified, all debugger command
409  *                                    help strings are displayed
410  *
411  * RETURN:      None
412  *
413  * DESCRIPTION: Display help for a single debugger command, or all of them.
414  *
415  ******************************************************************************/
416 
417 static void acpi_db_display_help(char *command)
418 {
419 	const struct acpi_db_command_help *next = acpi_gbl_db_command_help;
420 
421 	if (!command) {
422 
423 		/* No argument to help, display help for all commands */
424 
425 		acpi_os_printf("\nSummary of AML Debugger Commands\n\n");
426 
427 		while (next->invocation) {
428 			acpi_os_printf("%-38s%s", next->invocation,
429 				       next->description);
430 			next++;
431 		}
432 		acpi_os_printf("\n");
433 
434 	} else {
435 		/* Display help for all commands that match the subtring */
436 
437 		acpi_db_display_command_info(command, TRUE);
438 	}
439 }
440 
441 /*******************************************************************************
442  *
443  * FUNCTION:    acpi_db_get_next_token
444  *
445  * PARAMETERS:  string          - Command buffer
446  *              next            - Return value, end of next token
447  *
448  * RETURN:      Pointer to the start of the next token.
449  *
450  * DESCRIPTION: Command line parsing. Get the next token on the command line
451  *
452  ******************************************************************************/
453 
454 char *acpi_db_get_next_token(char *string,
455 			     char **next, acpi_object_type *return_type)
456 {
457 	char *start;
458 	u32 depth;
459 	acpi_object_type type = ACPI_TYPE_INTEGER;
460 
461 	/* At end of buffer? */
462 
463 	if (!string || !(*string)) {
464 		return (NULL);
465 	}
466 
467 	/* Remove any spaces at the beginning */
468 
469 	if (*string == ' ') {
470 		while (*string && (*string == ' ')) {
471 			string++;
472 		}
473 
474 		if (!(*string)) {
475 			return (NULL);
476 		}
477 	}
478 
479 	switch (*string) {
480 	case '"':
481 
482 		/* This is a quoted string, scan until closing quote */
483 
484 		string++;
485 		start = string;
486 		type = ACPI_TYPE_STRING;
487 
488 		/* Find end of string */
489 
490 		while (*string && (*string != '"')) {
491 			string++;
492 		}
493 		break;
494 
495 	case '(':
496 
497 		/* This is the start of a buffer, scan until closing paren */
498 
499 		string++;
500 		start = string;
501 		type = ACPI_TYPE_BUFFER;
502 
503 		/* Find end of buffer */
504 
505 		while (*string && (*string != ')')) {
506 			string++;
507 		}
508 		break;
509 
510 	case '[':
511 
512 		/* This is the start of a package, scan until closing bracket */
513 
514 		string++;
515 		depth = 1;
516 		start = string;
517 		type = ACPI_TYPE_PACKAGE;
518 
519 		/* Find end of package (closing bracket) */
520 
521 		while (*string) {
522 
523 			/* Handle String package elements */
524 
525 			if (*string == '"') {
526 				/* Find end of string */
527 
528 				string++;
529 				while (*string && (*string != '"')) {
530 					string++;
531 				}
532 				if (!(*string)) {
533 					break;
534 				}
535 			} else if (*string == '[') {
536 				depth++;	/* A nested package declaration */
537 			} else if (*string == ']') {
538 				depth--;
539 				if (depth == 0) {	/* Found final package closing bracket */
540 					break;
541 				}
542 			}
543 
544 			string++;
545 		}
546 		break;
547 
548 	default:
549 
550 		start = string;
551 
552 		/* Find end of token */
553 
554 		while (*string && (*string != ' ')) {
555 			string++;
556 		}
557 		break;
558 	}
559 
560 	if (!(*string)) {
561 		*next = NULL;
562 	} else {
563 		*string = 0;
564 		*next = string + 1;
565 	}
566 
567 	*return_type = type;
568 	return (start);
569 }
570 
571 /*******************************************************************************
572  *
573  * FUNCTION:    acpi_db_get_line
574  *
575  * PARAMETERS:  input_buffer        - Command line buffer
576  *
577  * RETURN:      Count of arguments to the command
578  *
579  * DESCRIPTION: Get the next command line from the user. Gets entire line
580  *              up to the next newline
581  *
582  ******************************************************************************/
583 
584 static u32 acpi_db_get_line(char *input_buffer)
585 {
586 	u32 i;
587 	u32 count;
588 	char *next;
589 	char *this;
590 
591 	if (acpi_ut_safe_strcpy
592 	    (acpi_gbl_db_parsed_buf, sizeof(acpi_gbl_db_parsed_buf),
593 	     input_buffer)) {
594 		acpi_os_printf
595 		    ("Buffer overflow while parsing input line (max %u characters)\n",
596 		     sizeof(acpi_gbl_db_parsed_buf));
597 		return (0);
598 	}
599 
600 	this = acpi_gbl_db_parsed_buf;
601 	for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++) {
602 		acpi_gbl_db_args[i] = acpi_db_get_next_token(this, &next,
603 							     &acpi_gbl_db_arg_types
604 							     [i]);
605 		if (!acpi_gbl_db_args[i]) {
606 			break;
607 		}
608 
609 		this = next;
610 	}
611 
612 	/* Uppercase the actual command */
613 
614 	acpi_ut_strupr(acpi_gbl_db_args[0]);
615 
616 	count = i;
617 	if (count) {
618 		count--;	/* Number of args only */
619 	}
620 
621 	return (count);
622 }
623 
624 /*******************************************************************************
625  *
626  * FUNCTION:    acpi_db_match_command
627  *
628  * PARAMETERS:  user_command            - User command line
629  *
630  * RETURN:      Index into command array, -1 if not found
631  *
632  * DESCRIPTION: Search command array for a command match
633  *
634  ******************************************************************************/
635 
636 static u32 acpi_db_match_command(char *user_command)
637 {
638 	u32 i;
639 
640 	if (!user_command || user_command[0] == 0) {
641 		return (CMD_NULL);
642 	}
643 
644 	for (i = CMD_FIRST_VALID; acpi_gbl_db_commands[i].name; i++) {
645 		if (strstr
646 		    (ACPI_CAST_PTR(char, acpi_gbl_db_commands[i].name),
647 		     user_command) == acpi_gbl_db_commands[i].name) {
648 			return (i);
649 		}
650 	}
651 
652 	/* Command not recognized */
653 
654 	return (CMD_NOT_FOUND);
655 }
656 
657 /*******************************************************************************
658  *
659  * FUNCTION:    acpi_db_command_dispatch
660  *
661  * PARAMETERS:  input_buffer        - Command line buffer
662  *              walk_state          - Current walk
663  *              op                  - Current (executing) parse op
664  *
665  * RETURN:      Status
666  *
667  * DESCRIPTION: Command dispatcher.
668  *
669  ******************************************************************************/
670 
671 acpi_status
672 acpi_db_command_dispatch(char *input_buffer,
673 			 struct acpi_walk_state *walk_state,
674 			 union acpi_parse_object *op)
675 {
676 	u32 temp;
677 	u32 command_index;
678 	u32 param_count;
679 	char *command_line;
680 	acpi_status status = AE_CTRL_TRUE;
681 
682 	/* If acpi_terminate has been called, terminate this thread */
683 
684 	if (acpi_gbl_db_terminate_loop) {
685 		return (AE_CTRL_TERMINATE);
686 	}
687 
688 	/* Find command and add to the history buffer */
689 
690 	param_count = acpi_db_get_line(input_buffer);
691 	command_index = acpi_db_match_command(acpi_gbl_db_args[0]);
692 	temp = 0;
693 
694 	/*
695 	 * We don't want to add the !! command to the history buffer. It
696 	 * would cause an infinite loop because it would always be the
697 	 * previous command.
698 	 */
699 	if (command_index != CMD_HISTORY_LAST) {
700 		acpi_db_add_to_history(input_buffer);
701 	}
702 
703 	/* Verify that we have the minimum number of params */
704 
705 	if (param_count < acpi_gbl_db_commands[command_index].min_args) {
706 		acpi_os_printf
707 		    ("%u parameters entered, [%s] requires %u parameters\n",
708 		     param_count, acpi_gbl_db_commands[command_index].name,
709 		     acpi_gbl_db_commands[command_index].min_args);
710 
711 		acpi_db_display_command_info(acpi_gbl_db_commands
712 					     [command_index].name, FALSE);
713 		return (AE_CTRL_TRUE);
714 	}
715 
716 	/* Decode and dispatch the command */
717 
718 	switch (command_index) {
719 	case CMD_NULL:
720 
721 		if (op) {
722 			return (AE_OK);
723 		}
724 		break;
725 
726 	case CMD_ALLOCATIONS:
727 
728 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
729 		acpi_ut_dump_allocations((u32)-1, NULL);
730 #endif
731 		break;
732 
733 	case CMD_ARGS:
734 	case CMD_ARGUMENTS:
735 
736 		acpi_db_display_arguments();
737 		break;
738 
739 	case CMD_BREAKPOINT:
740 
741 		acpi_db_set_method_breakpoint(acpi_gbl_db_args[1], walk_state,
742 					      op);
743 		break;
744 
745 	case CMD_BUSINFO:
746 
747 		acpi_db_get_bus_info();
748 		break;
749 
750 	case CMD_CALL:
751 
752 		acpi_db_set_method_call_breakpoint(op);
753 		status = AE_OK;
754 		break;
755 
756 	case CMD_DEBUG:
757 
758 		acpi_db_execute(acpi_gbl_db_args[1],
759 				&acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2],
760 				EX_SINGLE_STEP);
761 		break;
762 
763 	case CMD_DISASSEMBLE:
764 	case CMD_DISASM:
765 
766 #ifdef ACPI_DISASSEMBLER
767 		(void)acpi_db_disassemble_method(acpi_gbl_db_args[1]);
768 #else
769 		acpi_os_printf
770 		    ("The AML Disassembler is not configured/present\n");
771 #endif
772 		break;
773 
774 	case CMD_DUMP:
775 
776 		acpi_db_decode_and_display_object(acpi_gbl_db_args[1],
777 						  acpi_gbl_db_args[2]);
778 		break;
779 
780 	case CMD_EVALUATE:
781 	case CMD_EXECUTE:
782 
783 		acpi_db_execute(acpi_gbl_db_args[1],
784 				&acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2],
785 				EX_NO_SINGLE_STEP);
786 		break;
787 
788 	case CMD_FIND:
789 
790 		status = acpi_db_find_name_in_namespace(acpi_gbl_db_args[1]);
791 		break;
792 
793 	case CMD_GO:
794 
795 		acpi_gbl_cm_single_step = FALSE;
796 		return (AE_OK);
797 
798 	case CMD_HANDLERS:
799 
800 		acpi_db_display_handlers();
801 		break;
802 
803 	case CMD_HELP:
804 	case CMD_HELP2:
805 
806 		acpi_db_display_help(acpi_gbl_db_args[1]);
807 		break;
808 
809 	case CMD_HISTORY:
810 
811 		acpi_db_display_history();
812 		break;
813 
814 	case CMD_HISTORY_EXE:	/* ! command */
815 
816 		command_line = acpi_db_get_from_history(acpi_gbl_db_args[1]);
817 		if (!command_line) {
818 			return (AE_CTRL_TRUE);
819 		}
820 
821 		status = acpi_db_command_dispatch(command_line, walk_state, op);
822 		return (status);
823 
824 	case CMD_HISTORY_LAST:	/* !! command */
825 
826 		command_line = acpi_db_get_from_history(NULL);
827 		if (!command_line) {
828 			return (AE_CTRL_TRUE);
829 		}
830 
831 		status = acpi_db_command_dispatch(command_line, walk_state, op);
832 		return (status);
833 
834 	case CMD_INFORMATION:
835 
836 		acpi_db_display_method_info(op);
837 		break;
838 
839 	case CMD_INTEGRITY:
840 
841 		acpi_db_check_integrity();
842 		break;
843 
844 	case CMD_INTO:
845 
846 		if (op) {
847 			acpi_gbl_cm_single_step = TRUE;
848 			return (AE_OK);
849 		}
850 		break;
851 
852 	case CMD_LEVEL:
853 
854 		if (param_count == 0) {
855 			acpi_os_printf
856 			    ("Current debug level for file output is:    %8.8lX\n",
857 			     acpi_gbl_db_debug_level);
858 			acpi_os_printf
859 			    ("Current debug level for console output is: %8.8lX\n",
860 			     acpi_gbl_db_console_debug_level);
861 		} else if (param_count == 2) {
862 			temp = acpi_gbl_db_console_debug_level;
863 			acpi_gbl_db_console_debug_level =
864 			    strtoul(acpi_gbl_db_args[1], NULL, 16);
865 			acpi_os_printf
866 			    ("Debug Level for console output was %8.8lX, now %8.8lX\n",
867 			     temp, acpi_gbl_db_console_debug_level);
868 		} else {
869 			temp = acpi_gbl_db_debug_level;
870 			acpi_gbl_db_debug_level =
871 			    strtoul(acpi_gbl_db_args[1], NULL, 16);
872 			acpi_os_printf
873 			    ("Debug Level for file output was %8.8lX, now %8.8lX\n",
874 			     temp, acpi_gbl_db_debug_level);
875 		}
876 		break;
877 
878 	case CMD_LIST:
879 
880 #ifdef ACPI_DISASSEMBLER
881 		acpi_db_disassemble_aml(acpi_gbl_db_args[1], op);
882 #else
883 		acpi_os_printf
884 		    ("The AML Disassembler is not configured/present\n");
885 #endif
886 		break;
887 
888 	case CMD_LOCKS:
889 
890 		acpi_db_display_locks();
891 		break;
892 
893 	case CMD_LOCALS:
894 
895 		acpi_db_display_locals();
896 		break;
897 
898 	case CMD_METHODS:
899 
900 		status = acpi_db_display_objects("METHOD", acpi_gbl_db_args[1]);
901 		break;
902 
903 	case CMD_NAMESPACE:
904 
905 		acpi_db_dump_namespace(acpi_gbl_db_args[1],
906 				       acpi_gbl_db_args[2]);
907 		break;
908 
909 	case CMD_NOTIFY:
910 
911 		temp = strtoul(acpi_gbl_db_args[2], NULL, 0);
912 		acpi_db_send_notify(acpi_gbl_db_args[1], temp);
913 		break;
914 
915 	case CMD_OBJECTS:
916 
917 		acpi_ut_strupr(acpi_gbl_db_args[1]);
918 		status =
919 		    acpi_db_display_objects(acpi_gbl_db_args[1],
920 					    acpi_gbl_db_args[2]);
921 		break;
922 
923 	case CMD_OSI:
924 
925 		acpi_db_display_interfaces(acpi_gbl_db_args[1],
926 					   acpi_gbl_db_args[2]);
927 		break;
928 
929 	case CMD_OWNER:
930 
931 		acpi_db_dump_namespace_by_owner(acpi_gbl_db_args[1],
932 						acpi_gbl_db_args[2]);
933 		break;
934 
935 	case CMD_PATHS:
936 
937 		acpi_db_dump_namespace_paths();
938 		break;
939 
940 	case CMD_PREFIX:
941 
942 		acpi_db_set_scope(acpi_gbl_db_args[1]);
943 		break;
944 
945 	case CMD_REFERENCES:
946 
947 		acpi_db_find_references(acpi_gbl_db_args[1]);
948 		break;
949 
950 	case CMD_RESOURCES:
951 
952 		acpi_db_display_resources(acpi_gbl_db_args[1]);
953 		break;
954 
955 	case CMD_RESULTS:
956 
957 		acpi_db_display_results();
958 		break;
959 
960 	case CMD_SET:
961 
962 		acpi_db_set_method_data(acpi_gbl_db_args[1],
963 					acpi_gbl_db_args[2],
964 					acpi_gbl_db_args[3]);
965 		break;
966 
967 	case CMD_STATS:
968 
969 		status = acpi_db_display_statistics(acpi_gbl_db_args[1]);
970 		break;
971 
972 	case CMD_STOP:
973 
974 		return (AE_NOT_IMPLEMENTED);
975 
976 	case CMD_TABLES:
977 
978 		acpi_db_display_table_info(acpi_gbl_db_args[1]);
979 		break;
980 
981 	case CMD_TEMPLATE:
982 
983 		acpi_db_display_template(acpi_gbl_db_args[1]);
984 		break;
985 
986 	case CMD_TRACE:
987 
988 		acpi_db_trace(acpi_gbl_db_args[1], acpi_gbl_db_args[2],
989 			      acpi_gbl_db_args[3]);
990 		break;
991 
992 	case CMD_TREE:
993 
994 		acpi_db_display_calling_tree();
995 		break;
996 
997 	case CMD_TYPE:
998 
999 		acpi_db_display_object_type(acpi_gbl_db_args[1]);
1000 		break;
1001 
1002 #ifdef ACPI_APPLICATION
1003 
1004 		/* Hardware simulation commands. */
1005 
1006 	case CMD_ENABLEACPI:
1007 #if (!ACPI_REDUCED_HARDWARE)
1008 
1009 		status = acpi_enable();
1010 		if (ACPI_FAILURE(status)) {
1011 			acpi_os_printf("AcpiEnable failed (Status=%X)\n",
1012 				       status);
1013 			return (status);
1014 		}
1015 #endif				/* !ACPI_REDUCED_HARDWARE */
1016 		break;
1017 
1018 	case CMD_EVENT:
1019 
1020 		acpi_os_printf("Event command not implemented\n");
1021 		break;
1022 
1023 	case CMD_GPE:
1024 
1025 		acpi_db_generate_gpe(acpi_gbl_db_args[1], acpi_gbl_db_args[2]);
1026 		break;
1027 
1028 	case CMD_GPES:
1029 
1030 		acpi_db_display_gpes();
1031 		break;
1032 
1033 	case CMD_SCI:
1034 
1035 		acpi_db_generate_sci();
1036 		break;
1037 
1038 	case CMD_SLEEP:
1039 
1040 		status = acpi_db_sleep(acpi_gbl_db_args[1]);
1041 		break;
1042 
1043 		/* File I/O commands. */
1044 
1045 	case CMD_CLOSE:
1046 
1047 		acpi_db_close_debug_file();
1048 		break;
1049 
1050 	case CMD_LOAD:{
1051 			struct acpi_new_table_desc *list_head = NULL;
1052 
1053 			status =
1054 			    ac_get_all_tables_from_file(acpi_gbl_db_args[1],
1055 							ACPI_GET_ALL_TABLES,
1056 							&list_head);
1057 			if (ACPI_SUCCESS(status)) {
1058 				acpi_db_load_tables(list_head);
1059 			}
1060 		}
1061 		break;
1062 
1063 	case CMD_OPEN:
1064 
1065 		acpi_db_open_debug_file(acpi_gbl_db_args[1]);
1066 		break;
1067 
1068 		/* User space commands. */
1069 
1070 	case CMD_TERMINATE:
1071 
1072 		acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
1073 		acpi_ut_subsystem_shutdown();
1074 
1075 		/*
1076 		 * TBD: [Restructure] Need some way to re-initialize without
1077 		 * re-creating the semaphores!
1078 		 */
1079 
1080 		acpi_gbl_db_terminate_loop = TRUE;
1081 		/*  acpi_initialize (NULL); */
1082 		break;
1083 
1084 	case CMD_BACKGROUND:
1085 
1086 		acpi_db_create_execution_thread(acpi_gbl_db_args[1],
1087 						&acpi_gbl_db_args[2],
1088 						&acpi_gbl_db_arg_types[2]);
1089 		break;
1090 
1091 	case CMD_THREADS:
1092 
1093 		acpi_db_create_execution_threads(acpi_gbl_db_args[1],
1094 						 acpi_gbl_db_args[2],
1095 						 acpi_gbl_db_args[3]);
1096 		break;
1097 
1098 		/* Debug test commands. */
1099 
1100 	case CMD_PREDEFINED:
1101 
1102 		acpi_db_check_predefined_names();
1103 		break;
1104 
1105 	case CMD_TEST:
1106 
1107 		acpi_db_execute_test(acpi_gbl_db_args[1]);
1108 		break;
1109 
1110 	case CMD_UNLOAD:
1111 
1112 		acpi_db_unload_acpi_table(acpi_gbl_db_args[1]);
1113 		break;
1114 #endif
1115 
1116 	case CMD_EXIT:
1117 	case CMD_QUIT:
1118 
1119 		if (op) {
1120 			acpi_os_printf("Method execution terminated\n");
1121 			return (AE_CTRL_TERMINATE);
1122 		}
1123 
1124 		if (!acpi_gbl_db_output_to_file) {
1125 			acpi_dbg_level = ACPI_DEBUG_DEFAULT;
1126 		}
1127 #ifdef ACPI_APPLICATION
1128 		acpi_db_close_debug_file();
1129 #endif
1130 		acpi_gbl_db_terminate_loop = TRUE;
1131 		return (AE_CTRL_TERMINATE);
1132 
1133 	case CMD_NOT_FOUND:
1134 	default:
1135 
1136 		acpi_os_printf("%s: unknown command\n", acpi_gbl_db_args[0]);
1137 		return (AE_CTRL_TRUE);
1138 	}
1139 
1140 	if (ACPI_SUCCESS(status)) {
1141 		status = AE_CTRL_TRUE;
1142 	}
1143 
1144 	return (status);
1145 }
1146 
1147 /*******************************************************************************
1148  *
1149  * FUNCTION:    acpi_db_execute_thread
1150  *
1151  * PARAMETERS:  context         - Not used
1152  *
1153  * RETURN:      None
1154  *
1155  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1156  *              simply dispatches it.
1157  *
1158  ******************************************************************************/
1159 
1160 void ACPI_SYSTEM_XFACE acpi_db_execute_thread(void *context)
1161 {
1162 
1163 	(void)acpi_db_user_commands();
1164 	acpi_gbl_db_threads_terminated = TRUE;
1165 }
1166 
1167 /*******************************************************************************
1168  *
1169  * FUNCTION:    acpi_db_user_commands
1170  *
1171  * PARAMETERS:  None
1172  *
1173  * RETURN:      None
1174  *
1175  * DESCRIPTION: Command line execution for the AML debugger. Commands are
1176  *              matched and dispatched here.
1177  *
1178  ******************************************************************************/
1179 
1180 acpi_status acpi_db_user_commands(void)
1181 {
1182 	acpi_status status = AE_OK;
1183 
1184 	acpi_os_printf("\n");
1185 
1186 	/* TBD: [Restructure] Need a separate command line buffer for step mode */
1187 
1188 	while (!acpi_gbl_db_terminate_loop) {
1189 
1190 		/* Wait the readiness of the command */
1191 
1192 		status = acpi_os_wait_command_ready();
1193 		if (ACPI_FAILURE(status)) {
1194 			break;
1195 		}
1196 
1197 		/* Just call to the command line interpreter */
1198 
1199 		acpi_gbl_method_executing = FALSE;
1200 		acpi_gbl_step_to_next_call = FALSE;
1201 
1202 		(void)acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL,
1203 					       NULL);
1204 
1205 		/* Notify the completion of the command */
1206 
1207 		status = acpi_os_notify_command_complete();
1208 		if (ACPI_FAILURE(status)) {
1209 			break;
1210 		}
1211 	}
1212 
1213 	if (ACPI_FAILURE(status) && status != AE_CTRL_TERMINATE) {
1214 		ACPI_EXCEPTION((AE_INFO, status, "While parsing command line"));
1215 	}
1216 	return (status);
1217 }
1218