xref: /dflybsd-src/sys/contrib/dev/acpica/source/components/debugger/dbinput.c (revision 5027f2b859b3278b388cbe51b3500242a1661f2c)
1 /*******************************************************************************
2  *
3  * Module Name: dbinput - user front-end to the AML debugger
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2013, Intel Corp.
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 
45 #include "acpi.h"
46 #include "accommon.h"
47 #include "acdebug.h"
48 
49 
50 #ifdef ACPI_DEBUGGER
51 
52 #define _COMPONENT          ACPI_CA_DEBUGGER
53         ACPI_MODULE_NAME    ("dbinput")
54 
55 /* Local prototypes */
56 
57 static UINT32
58 AcpiDbGetLine (
59     char                    *InputBuffer);
60 
61 static UINT32
62 AcpiDbMatchCommand (
63     char                    *UserCommand);
64 
65 static void
66 AcpiDbSingleThread (
67     void);
68 
69 static void
70 AcpiDbDisplayCommandInfo (
71     char                    *Command,
72     BOOLEAN                 DisplayAll);
73 
74 static void
75 AcpiDbDisplayHelp (
76     char                    *Command);
77 
78 static BOOLEAN
79 AcpiDbMatchCommandHelp (
80     char                        *Command,
81     const ACPI_DB_COMMAND_HELP  *Help);
82 
83 
84 /*
85  * Top-level debugger commands.
86  *
87  * This list of commands must match the string table below it
88  */
89 enum AcpiExDebuggerCommands
90 {
91     CMD_NOT_FOUND = 0,
92     CMD_NULL,
93     CMD_ALLOCATIONS,
94     CMD_ARGS,
95     CMD_ARGUMENTS,
96     CMD_BATCH,
97     CMD_BREAKPOINT,
98     CMD_BUSINFO,
99     CMD_CALL,
100     CMD_CLOSE,
101     CMD_DEBUG,
102     CMD_DISASSEMBLE,
103     CMD_DISASM,
104     CMD_DUMP,
105     CMD_ENABLEACPI,
106     CMD_EVALUATE,
107     CMD_EVENT,
108     CMD_EXECUTE,
109     CMD_EXIT,
110     CMD_FIND,
111     CMD_GO,
112     CMD_GPE,
113     CMD_GPES,
114     CMD_HANDLERS,
115     CMD_HELP,
116     CMD_HELP2,
117     CMD_HISTORY,
118     CMD_HISTORY_EXE,
119     CMD_HISTORY_LAST,
120     CMD_INFORMATION,
121     CMD_INTEGRITY,
122     CMD_INTO,
123     CMD_LEVEL,
124     CMD_LIST,
125     CMD_LOAD,
126     CMD_LOCALS,
127     CMD_LOCKS,
128     CMD_METHODS,
129     CMD_NAMESPACE,
130     CMD_NOTIFY,
131     CMD_OBJECTS,
132     CMD_OPEN,
133     CMD_OSI,
134     CMD_OWNER,
135     CMD_PATHS,
136     CMD_PREDEFINED,
137     CMD_PREFIX,
138     CMD_QUIT,
139     CMD_REFERENCES,
140     CMD_RESOURCES,
141     CMD_RESULTS,
142     CMD_SCI,
143     CMD_SET,
144     CMD_SLEEP,
145     CMD_STATS,
146     CMD_STOP,
147     CMD_TABLES,
148     CMD_TEMPLATE,
149     CMD_TERMINATE,
150     CMD_THREADS,
151     CMD_TRACE,
152     CMD_TREE,
153     CMD_TYPE,
154     CMD_UNLOAD
155 };
156 
157 #define CMD_FIRST_VALID     2
158 
159 
160 /* Second parameter is the required argument count */
161 
162 static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
163 {
164     {"<NOT FOUND>",  0},
165     {"<NULL>",       0},
166     {"ALLOCATIONS",  0},
167     {"ARGS",         0},
168     {"ARGUMENTS",    0},
169     {"BATCH",        0},
170     {"BREAKPOINT",   1},
171     {"BUSINFO",      0},
172     {"CALL",         0},
173     {"CLOSE",        0},
174     {"DEBUG",        1},
175     {"DISASSEMBLE",  1},
176     {"DISASM",       1},
177     {"DUMP",         1},
178     {"ENABLEACPI",   0},
179     {"EVALUATE",     1},
180     {"EVENT",        1},
181     {"EXECUTE",      1},
182     {"EXIT",         0},
183     {"FIND",         1},
184     {"GO",           0},
185     {"GPE",          2},
186     {"GPES",         0},
187     {"HANDLERS",     0},
188     {"HELP",         0},
189     {"?",            0},
190     {"HISTORY",      0},
191     {"!",            1},
192     {"!!",           0},
193     {"INFORMATION",  0},
194     {"INTEGRITY",    0},
195     {"INTO",         0},
196     {"LEVEL",        0},
197     {"LIST",         0},
198     {"LOAD",         1},
199     {"LOCALS",       0},
200     {"LOCKS",        0},
201     {"METHODS",      0},
202     {"NAMESPACE",    0},
203     {"NOTIFY",       2},
204     {"OBJECTS",      1},
205     {"OPEN",         1},
206     {"OSI",          0},
207     {"OWNER",        1},
208     {"PATHS",        0},
209     {"PREDEFINED",   0},
210     {"PREFIX",       0},
211     {"QUIT",         0},
212     {"REFERENCES",   1},
213     {"RESOURCES",    0},
214     {"RESULTS",      0},
215     {"SCI",          0},
216     {"SET",          3},
217     {"SLEEP",        0},
218     {"STATS",        1},
219     {"STOP",         0},
220     {"TABLES",       0},
221     {"TEMPLATE",     1},
222     {"TERMINATE",    0},
223     {"THREADS",      3},
224     {"TRACE",        1},
225     {"TREE",         0},
226     {"TYPE",         1},
227     {"UNLOAD",       1},
228     {NULL,           0}
229 };
230 
231 /*
232  * Help for all debugger commands. First argument is the number of lines
233  * of help to output for the command.
234  */
235 static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
236 {
237     {0, "\nGeneral-Purpose Commands:",         "\n"},
238     {1, "  Allocations",                       "Display list of current memory allocations\n"},
239     {2, "  Dump <Address>|<Namepath>",         "\n"},
240     {0, "       [Byte|Word|Dword|Qword]",      "Display ACPI objects or memory\n"},
241     {1, "  EnableAcpi",                        "Enable ACPI (hardware) mode\n"},
242     {1, "  Handlers",                          "Info about global handlers\n"},
243     {1, "  Help [Command]",                    "This help screen or individual command\n"},
244     {1, "  History",                           "Display command history buffer\n"},
245     {1, "  Level <DebugLevel>] [console]",     "Get/Set debug level for file or console\n"},
246     {1, "  Locks",                             "Current status of internal mutexes\n"},
247     {1, "  Osi [Install|Remove <name>]",       "Display or modify global _OSI list\n"},
248     {1, "  Quit or Exit",                      "Exit this command\n"},
249     {9, "  Stats [Allocations|Memory|Misc|",   "\n"},
250     {1, "      Objects|Sizes|Stack|Tables]",   "Display namespace and memory statistics\n"},
251     {1, "     Allocations",                    "Display list of current memory allocations\n"},
252     {1, "     Memory",                         "Dump internal memory lists\n"},
253     {1, "     Misc",                           "Namespace search and mutex stats\n"},
254     {1, "     Objects",                        "Summary of namespace objects\n"},
255     {1, "     Sizes",                          "Sizes for each of the internal objects\n"},
256     {1, "     Stack",                          "Display CPU stack usage\n"},
257     {1, "     Tables",                         "Info about current ACPI table(s)\n"},
258     {1, "  Tables",                            "Display info about loaded ACPI tables\n"},
259     {1, "  Unload <Namepath>",                 "Unload an ACPI table via namespace object\n"},
260     {1, "  ! <CommandNumber>",                 "Execute command from history buffer\n"},
261     {1, "  !!",                                "Execute last command again\n"},
262 
263     {0, "\nNamespace Access Commands:",        "\n"},
264     {1, "  Businfo",                           "Display system bus info\n"},
265     {1, "  Disassemble <Method>",              "Disassemble a control method\n"},
266     {1, "  Find <AcpiName> (? is wildcard)",   "Find ACPI name(s) with wildcards\n"},
267     {1, "  Integrity",                         "Validate namespace integrity\n"},
268     {1, "  Methods",                           "Display list of loaded control methods\n"},
269     {1, "  Namespace [Object] [Depth]",        "Display loaded namespace tree/subtree\n"},
270     {1, "  Notify <Object> <Value>",           "Send a notification on Object\n"},
271     {1, "  Objects <ObjectType>",              "Display all objects of the given type\n"},
272     {1, "  Owner <OwnerId> [Depth]",           "Display loaded namespace by object owner\n"},
273     {1, "  Paths",                             "Display full pathnames of namespace objects\n"},
274     {1, "  Predefined",                        "Check all predefined names\n"},
275     {1, "  Prefix [<NamePath>]",               "Set or Get current execution prefix\n"},
276     {1, "  References <Addr>",                 "Find all references to object at addr\n"},
277     {1, "  Resources [DeviceName]",            "Display Device resources (no arg = all devices)\n"},
278     {1, "  Set N <NamedObject> <Value>",       "Set value for named integer\n"},
279     {1, "  Template <Object>",                 "Format/dump a Buffer/ResourceTemplate\n"},
280     {1, "  Terminate",                         "Delete namespace and all internal objects\n"},
281     {1, "  Type <Object>",                     "Display object type\n"},
282 
283     {0, "\nControl Method Execution Commands:","\n"},
284     {1, "  Arguments (or Args)",               "Display method arguments\n"},
285     {1, "  Breakpoint <AmlOffset>",            "Set an AML execution breakpoint\n"},
286     {1, "  Call",                              "Run to next control method invocation\n"},
287     {1, "  Debug <Namepath> [Arguments]",      "Single Step a control method\n"},
288     {6, "  Evaluate",                          "Synonym for Execute\n"},
289     {5, "  Execute <Namepath> [Arguments]",    "Execute control method\n"},
290     {1, "     Hex Integer",                    "Integer method argument\n"},
291     {1, "     \"Ascii String\"",               "String method argument\n"},
292     {1, "     (Hex Byte List)",                "Buffer method argument\n"},
293     {1, "     [Package Element List]",         "Package method argument\n"},
294     {1, "  Go",                                "Allow method to run to completion\n"},
295     {1, "  Information",                       "Display info about the current method\n"},
296     {1, "  Into",                              "Step into (not over) a method call\n"},
297     {1, "  List [# of Aml Opcodes]",           "Display method ASL statements\n"},
298     {1, "  Locals",                            "Display method local variables\n"},
299     {1, "  Results",                           "Display method result stack\n"},
300     {1, "  Set <A|L> <#> <Value>",             "Set method data (Arguments/Locals)\n"},
301     {1, "  Stop",                              "Terminate control method\n"},
302     {1, "  Thread <Threads><Loops><NamePath>", "Spawn threads to execute method(s)\n"},
303     {1, "  Trace <method name>",               "Trace method execution\n"},
304     {1, "  Tree",                              "Display control method calling tree\n"},
305     {1, "  <Enter>",                           "Single step next AML opcode (over calls)\n"},
306 
307     {0, "\nHardware Related Commands:",         "\n"},
308     {1, "  Event <F|G> <Value>",               "Generate AcpiEvent (Fixed/GPE)\n"},
309     {1, "  Gpe <GpeNum> <GpeBlock>",           "Simulate a GPE\n"},
310     {1, "  Gpes",                              "Display info on all GPEs\n"},
311     {1, "  Sci",                               "Generate an SCI\n"},
312     {1, "  Sleep [SleepState]",                "Simulate sleep/wake sequence(s) (0-5)\n"},
313 
314     {0, "\nFile I/O Commands:",                "\n"},
315     {1, "  Close",                             "Close debug output file\n"},
316     {1, "  Load <Input Filename>",             "Load ACPI table from a file\n"},
317     {1, "  Open <Output Filename>",            "Open a file for debug output\n"},
318     {0, NULL, NULL}
319 };
320 
321 
322 /*******************************************************************************
323  *
324  * FUNCTION:    AcpiDbMatchCommandHelp
325  *
326  * PARAMETERS:  Command             - Command string to match
327  *              Help                - Help table entry to attempt match
328  *
329  * RETURN:      TRUE if command matched, FALSE otherwise
330  *
331  * DESCRIPTION: Attempt to match a command in the help table in order to
332  *              print help information for a single command.
333  *
334  ******************************************************************************/
335 
336 static BOOLEAN
337 AcpiDbMatchCommandHelp (
338     char                        *Command,
339     const ACPI_DB_COMMAND_HELP  *Help)
340 {
341     char                    *Invocation = Help->Invocation;
342     UINT32                  LineCount;
343 
344 
345     /* Valid commands in the help table begin with a couple of spaces */
346 
347     if (*Invocation != ' ')
348     {
349         return (FALSE);
350     }
351 
352     while (*Invocation == ' ')
353     {
354         Invocation++;
355     }
356 
357     /* Match command name (full command or substring) */
358 
359     while ((*Command) && (*Invocation) && (*Invocation != ' '))
360     {
361         if (ACPI_TOLOWER (*Command) != ACPI_TOLOWER (*Invocation))
362         {
363             return (FALSE);
364         }
365 
366         Invocation++;
367         Command++;
368     }
369 
370     /* Print the appropriate number of help lines */
371 
372     LineCount = Help->LineCount;
373     while (LineCount)
374     {
375         AcpiOsPrintf ("%-38s : %s", Help->Invocation, Help->Description);
376         Help++;
377         LineCount--;
378     }
379 
380     return (TRUE);
381 }
382 
383 
384 /*******************************************************************************
385  *
386  * FUNCTION:    AcpiDbDisplayCommandInfo
387  *
388  * PARAMETERS:  Command             - Command string to match
389  *              DisplayAll          - Display all matching commands, or just
390  *                                    the first one (substring match)
391  *
392  * RETURN:      None
393  *
394  * DESCRIPTION: Display help information for a Debugger command.
395  *
396  ******************************************************************************/
397 
398 static void
399 AcpiDbDisplayCommandInfo (
400     char                    *Command,
401     BOOLEAN                 DisplayAll)
402 {
403     const ACPI_DB_COMMAND_HELP  *Next;
404     BOOLEAN                     Matched;
405 
406 
407     Next = AcpiGbl_DbCommandHelp;
408     while (Next->Invocation)
409     {
410         Matched = AcpiDbMatchCommandHelp (Command, Next);
411         if (!DisplayAll && Matched)
412         {
413             return;
414         }
415 
416         Next++;
417     }
418 }
419 
420 
421 /*******************************************************************************
422  *
423  * FUNCTION:    AcpiDbDisplayHelp
424  *
425  * PARAMETERS:  Command             - Optional command string to display help.
426  *                                    if not specified, all debugger command
427  *                                    help strings are displayed
428  *
429  * RETURN:      None
430  *
431  * DESCRIPTION: Display help for a single debugger command, or all of them.
432  *
433  ******************************************************************************/
434 
435 static void
436 AcpiDbDisplayHelp (
437     char                    *Command)
438 {
439     const ACPI_DB_COMMAND_HELP  *Next = AcpiGbl_DbCommandHelp;
440 
441 
442     if (!Command)
443     {
444         /* No argument to help, display help for all commands */
445 
446         while (Next->Invocation)
447         {
448             AcpiOsPrintf ("%-38s%s", Next->Invocation, Next->Description);
449             Next++;
450         }
451     }
452     else
453     {
454         /* Display help for all commands that match the subtring */
455 
456         AcpiDbDisplayCommandInfo (Command, TRUE);
457     }
458 }
459 
460 
461 /*******************************************************************************
462  *
463  * FUNCTION:    AcpiDbGetNextToken
464  *
465  * PARAMETERS:  String          - Command buffer
466  *              Next            - Return value, end of next token
467  *
468  * RETURN:      Pointer to the start of the next token.
469  *
470  * DESCRIPTION: Command line parsing. Get the next token on the command line
471  *
472  ******************************************************************************/
473 
474 char *
475 AcpiDbGetNextToken (
476     char                    *String,
477     char                    **Next,
478     ACPI_OBJECT_TYPE        *ReturnType)
479 {
480     char                    *Start;
481     UINT32                  Depth;
482     ACPI_OBJECT_TYPE        Type = ACPI_TYPE_INTEGER;
483 
484 
485     /* At end of buffer? */
486 
487     if (!String || !(*String))
488     {
489         return (NULL);
490     }
491 
492     /* Remove any spaces at the beginning */
493 
494     if (*String == ' ')
495     {
496         while (*String && (*String == ' '))
497         {
498             String++;
499         }
500 
501         if (!(*String))
502         {
503             return (NULL);
504         }
505     }
506 
507     switch (*String)
508     {
509     case '"':
510 
511         /* This is a quoted string, scan until closing quote */
512 
513         String++;
514         Start = String;
515         Type = ACPI_TYPE_STRING;
516 
517         /* Find end of string */
518 
519         while (*String && (*String != '"'))
520         {
521             String++;
522         }
523         break;
524 
525     case '(':
526 
527         /* This is the start of a buffer, scan until closing paren */
528 
529         String++;
530         Start = String;
531         Type = ACPI_TYPE_BUFFER;
532 
533         /* Find end of buffer */
534 
535         while (*String && (*String != ')'))
536         {
537             String++;
538         }
539         break;
540 
541     case '[':
542 
543         /* This is the start of a package, scan until closing bracket */
544 
545         String++;
546         Depth = 1;
547         Start = String;
548         Type = ACPI_TYPE_PACKAGE;
549 
550         /* Find end of package (closing bracket) */
551 
552         while (*String)
553         {
554             /* Handle String package elements */
555 
556             if (*String == '"')
557             {
558                 /* Find end of string */
559 
560                 String++;
561                 while (*String && (*String != '"'))
562                 {
563                     String++;
564                 }
565                 if (!(*String))
566                 {
567                     break;
568                 }
569             }
570             else if (*String == '[')
571             {
572                 Depth++;         /* A nested package declaration */
573             }
574             else if (*String == ']')
575             {
576                 Depth--;
577                 if (Depth == 0) /* Found final package closing bracket */
578                 {
579                     break;
580                 }
581             }
582 
583             String++;
584         }
585         break;
586 
587     default:
588 
589         Start = String;
590 
591         /* Find end of token */
592 
593         while (*String && (*String != ' '))
594         {
595             String++;
596         }
597         break;
598     }
599 
600     if (!(*String))
601     {
602         *Next = NULL;
603     }
604     else
605     {
606         *String = 0;
607         *Next = String + 1;
608     }
609 
610     *ReturnType = Type;
611     return (Start);
612 }
613 
614 
615 /*******************************************************************************
616  *
617  * FUNCTION:    AcpiDbGetLine
618  *
619  * PARAMETERS:  InputBuffer         - Command line buffer
620  *
621  * RETURN:      Count of arguments to the command
622  *
623  * DESCRIPTION: Get the next command line from the user. Gets entire line
624  *              up to the next newline
625  *
626  ******************************************************************************/
627 
628 static UINT32
629 AcpiDbGetLine (
630     char                    *InputBuffer)
631 {
632     UINT32                  i;
633     UINT32                  Count;
634     char                    *Next;
635     char                    *This;
636 
637 
638     if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
639         InputBuffer))
640     {
641         AcpiOsPrintf ("Buffer overflow while parsing input line (max %u characters)\n",
642             sizeof (AcpiGbl_DbParsedBuf));
643         return (0);
644     }
645 
646     This = AcpiGbl_DbParsedBuf;
647     for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
648     {
649         AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
650             &AcpiGbl_DbArgTypes[i]);
651         if (!AcpiGbl_DbArgs[i])
652         {
653             break;
654         }
655 
656         This = Next;
657     }
658 
659     /* Uppercase the actual command */
660 
661     if (AcpiGbl_DbArgs[0])
662     {
663         AcpiUtStrupr (AcpiGbl_DbArgs[0]);
664     }
665 
666     Count = i;
667     if (Count)
668     {
669         Count--;  /* Number of args only */
670     }
671 
672     return (Count);
673 }
674 
675 
676 /*******************************************************************************
677  *
678  * FUNCTION:    AcpiDbMatchCommand
679  *
680  * PARAMETERS:  UserCommand             - User command line
681  *
682  * RETURN:      Index into command array, -1 if not found
683  *
684  * DESCRIPTION: Search command array for a command match
685  *
686  ******************************************************************************/
687 
688 static UINT32
689 AcpiDbMatchCommand (
690     char                    *UserCommand)
691 {
692     UINT32                  i;
693 
694 
695     if (!UserCommand || UserCommand[0] == 0)
696     {
697         return (CMD_NULL);
698     }
699 
700     for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
701     {
702         if (ACPI_STRSTR (AcpiGbl_DbCommands[i].Name, UserCommand) ==
703                          AcpiGbl_DbCommands[i].Name)
704         {
705             return (i);
706         }
707     }
708 
709     /* Command not recognized */
710 
711     return (CMD_NOT_FOUND);
712 }
713 
714 
715 /*******************************************************************************
716  *
717  * FUNCTION:    AcpiDbCommandDispatch
718  *
719  * PARAMETERS:  InputBuffer         - Command line buffer
720  *              WalkState           - Current walk
721  *              Op                  - Current (executing) parse op
722  *
723  * RETURN:      Status
724  *
725  * DESCRIPTION: Command dispatcher.
726  *
727  ******************************************************************************/
728 
729 ACPI_STATUS
730 AcpiDbCommandDispatch (
731     char                    *InputBuffer,
732     ACPI_WALK_STATE         *WalkState,
733     ACPI_PARSE_OBJECT       *Op)
734 {
735     UINT32                  Temp;
736     UINT32                  CommandIndex;
737     UINT32                  ParamCount;
738     char                    *CommandLine;
739     ACPI_STATUS             Status = AE_CTRL_TRUE;
740 
741 
742     /* If AcpiTerminate has been called, terminate this thread */
743 
744     if (AcpiGbl_DbTerminateThreads)
745     {
746         return (AE_CTRL_TERMINATE);
747     }
748 
749 
750     /* Add all commands that come here to the history buffer */
751 
752     AcpiDbAddToHistory (InputBuffer);
753 
754     ParamCount = AcpiDbGetLine (InputBuffer);
755     CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
756     Temp = 0;
757 
758     /* Verify that we have the minimum number of params */
759 
760     if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
761     {
762         AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
763             ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
764             AcpiGbl_DbCommands[CommandIndex].MinArgs);
765 
766         AcpiDbDisplayCommandInfo (AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
767         return (AE_CTRL_TRUE);
768     }
769 
770     /* Decode and dispatch the command */
771 
772     switch (CommandIndex)
773     {
774     case CMD_NULL:
775 
776         if (Op)
777         {
778             return (AE_OK);
779         }
780         break;
781 
782     case CMD_ALLOCATIONS:
783 
784 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
785         AcpiUtDumpAllocations ((UINT32) -1, NULL);
786 #endif
787         break;
788 
789     case CMD_ARGS:
790     case CMD_ARGUMENTS:
791 
792         AcpiDbDisplayArguments ();
793         break;
794 
795     case CMD_BATCH:
796 
797         AcpiDbBatchExecute (AcpiGbl_DbArgs[1]);
798         break;
799 
800     case CMD_BREAKPOINT:
801 
802         AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
803         break;
804 
805     case CMD_BUSINFO:
806 
807         AcpiDbGetBusInfo ();
808         break;
809 
810     case CMD_CALL:
811 
812         AcpiDbSetMethodCallBreakpoint (Op);
813         Status = AE_OK;
814         break;
815 
816     case CMD_CLOSE:
817 
818         AcpiDbCloseDebugFile ();
819         break;
820 
821     case CMD_DEBUG:
822 
823         AcpiDbExecute (AcpiGbl_DbArgs[1],
824             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
825         break;
826 
827     case CMD_DISASSEMBLE:
828     case CMD_DISASM:
829 
830         (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
831         break;
832 
833     case CMD_DUMP:
834 
835         AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
836         break;
837 
838     case CMD_ENABLEACPI:
839 #if (!ACPI_REDUCED_HARDWARE)
840 
841         Status = AcpiEnable();
842         if (ACPI_FAILURE(Status))
843         {
844             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
845             return (Status);
846         }
847 #endif /* !ACPI_REDUCED_HARDWARE */
848         break;
849 
850     case CMD_EVENT:
851 
852         AcpiOsPrintf ("Event command not implemented\n");
853         break;
854 
855     case CMD_EVALUATE:
856     case CMD_EXECUTE:
857 
858         AcpiDbExecute (AcpiGbl_DbArgs[1],
859             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
860         break;
861 
862     case CMD_FIND:
863 
864         Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
865         break;
866 
867     case CMD_GO:
868 
869         AcpiGbl_CmSingleStep = FALSE;
870         return (AE_OK);
871 
872     case CMD_GPE:
873 
874         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
875         break;
876 
877     case CMD_GPES:
878 
879         AcpiDbDisplayGpes ();
880         break;
881 
882     case CMD_HANDLERS:
883 
884         AcpiDbDisplayHandlers ();
885         break;
886 
887     case CMD_HELP:
888     case CMD_HELP2:
889 
890         AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
891         break;
892 
893     case CMD_HISTORY:
894 
895         AcpiDbDisplayHistory ();
896         break;
897 
898     case CMD_HISTORY_EXE: /* ! command */
899 
900         CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
901         if (!CommandLine)
902         {
903             return (AE_CTRL_TRUE);
904         }
905 
906         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
907         return (Status);
908 
909     case CMD_HISTORY_LAST: /* !! command */
910 
911         CommandLine = AcpiDbGetFromHistory (NULL);
912         if (!CommandLine)
913         {
914             return (AE_CTRL_TRUE);
915         }
916 
917         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
918         return (Status);
919 
920     case CMD_INFORMATION:
921 
922         AcpiDbDisplayMethodInfo (Op);
923         break;
924 
925     case CMD_INTEGRITY:
926 
927         AcpiDbCheckIntegrity ();
928         break;
929 
930     case CMD_INTO:
931 
932         if (Op)
933         {
934             AcpiGbl_CmSingleStep = TRUE;
935             return (AE_OK);
936         }
937         break;
938 
939     case CMD_LEVEL:
940 
941         if (ParamCount == 0)
942         {
943             AcpiOsPrintf ("Current debug level for file output is:    %8.8lX\n",
944                 AcpiGbl_DbDebugLevel);
945             AcpiOsPrintf ("Current debug level for console output is: %8.8lX\n",
946                 AcpiGbl_DbConsoleDebugLevel);
947         }
948         else if (ParamCount == 2)
949         {
950             Temp = AcpiGbl_DbConsoleDebugLevel;
951             AcpiGbl_DbConsoleDebugLevel = ACPI_STRTOUL (AcpiGbl_DbArgs[1],
952                                             NULL, 16);
953             AcpiOsPrintf (
954                 "Debug Level for console output was %8.8lX, now %8.8lX\n",
955                 Temp, AcpiGbl_DbConsoleDebugLevel);
956         }
957         else
958         {
959             Temp = AcpiGbl_DbDebugLevel;
960             AcpiGbl_DbDebugLevel = ACPI_STRTOUL (AcpiGbl_DbArgs[1], NULL, 16);
961             AcpiOsPrintf (
962                 "Debug Level for file output was %8.8lX, now %8.8lX\n",
963                 Temp, AcpiGbl_DbDebugLevel);
964         }
965         break;
966 
967     case CMD_LIST:
968 
969         AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
970         break;
971 
972     case CMD_LOAD:
973 
974         Status = AcpiDbGetTableFromFile (AcpiGbl_DbArgs[1], NULL);
975         break;
976 
977     case CMD_LOCKS:
978 
979         AcpiDbDisplayLocks ();
980         break;
981 
982     case CMD_LOCALS:
983 
984         AcpiDbDisplayLocals ();
985         break;
986 
987     case CMD_METHODS:
988 
989         Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
990         break;
991 
992     case CMD_NAMESPACE:
993 
994         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
995         break;
996 
997     case CMD_NOTIFY:
998 
999         Temp = ACPI_STRTOUL (AcpiGbl_DbArgs[2], NULL, 0);
1000         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
1001         break;
1002 
1003     case CMD_OBJECTS:
1004 
1005         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
1006         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1007         break;
1008 
1009     case CMD_OPEN:
1010 
1011         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
1012         break;
1013 
1014     case CMD_OSI:
1015 
1016         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1017         break;
1018 
1019     case CMD_OWNER:
1020 
1021         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1022         break;
1023 
1024     case CMD_PATHS:
1025 
1026         AcpiDbDumpNamespacePaths ();
1027         break;
1028 
1029     case CMD_PREDEFINED:
1030 
1031         AcpiDbCheckPredefinedNames ();
1032         break;
1033 
1034     case CMD_PREFIX:
1035 
1036         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
1037         break;
1038 
1039     case CMD_REFERENCES:
1040 
1041         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
1042         break;
1043 
1044     case CMD_RESOURCES:
1045 
1046         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
1047         break;
1048 
1049     case CMD_RESULTS:
1050 
1051         AcpiDbDisplayResults ();
1052         break;
1053 
1054     case CMD_SCI:
1055 
1056         AcpiDbGenerateSci ();
1057         break;
1058 
1059     case CMD_SET:
1060 
1061         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1062             AcpiGbl_DbArgs[3]);
1063         break;
1064 
1065     case CMD_SLEEP:
1066 
1067         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
1068         break;
1069 
1070     case CMD_STATS:
1071 
1072         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
1073         break;
1074 
1075     case CMD_STOP:
1076 
1077         return (AE_NOT_IMPLEMENTED);
1078 
1079     case CMD_TABLES:
1080 
1081         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
1082         break;
1083 
1084     case CMD_TEMPLATE:
1085 
1086         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
1087         break;
1088 
1089     case CMD_TERMINATE:
1090 
1091         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
1092         AcpiUtSubsystemShutdown ();
1093 
1094         /*
1095          * TBD: [Restructure] Need some way to re-initialize without
1096          * re-creating the semaphores!
1097          */
1098 
1099         /*  AcpiInitialize (NULL);  */
1100         break;
1101 
1102     case CMD_THREADS:
1103 
1104         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1105             AcpiGbl_DbArgs[3]);
1106         break;
1107 
1108     case CMD_TRACE:
1109 
1110         (void) AcpiDebugTrace (AcpiGbl_DbArgs[1],0,0,1);
1111         break;
1112 
1113     case CMD_TREE:
1114 
1115         AcpiDbDisplayCallingTree ();
1116         break;
1117 
1118     case CMD_TYPE:
1119 
1120         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
1121         break;
1122 
1123     case CMD_UNLOAD:
1124 
1125         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
1126         break;
1127 
1128     case CMD_EXIT:
1129     case CMD_QUIT:
1130 
1131         if (Op)
1132         {
1133             AcpiOsPrintf ("Method execution terminated\n");
1134             return (AE_CTRL_TERMINATE);
1135         }
1136 
1137         if (!AcpiGbl_DbOutputToFile)
1138         {
1139             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
1140         }
1141 
1142         AcpiDbCloseDebugFile ();
1143         AcpiGbl_DbTerminateThreads = TRUE;
1144         return (AE_CTRL_TERMINATE);
1145 
1146     case CMD_NOT_FOUND:
1147     default:
1148 
1149         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
1150         return (AE_CTRL_TRUE);
1151     }
1152 
1153     if (ACPI_SUCCESS (Status))
1154     {
1155         Status = AE_CTRL_TRUE;
1156     }
1157 
1158     return (Status);
1159 }
1160 
1161 
1162 /*******************************************************************************
1163  *
1164  * FUNCTION:    AcpiDbExecuteThread
1165  *
1166  * PARAMETERS:  Context         - Not used
1167  *
1168  * RETURN:      None
1169  *
1170  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1171  *              simply dispatches it.
1172  *
1173  ******************************************************************************/
1174 
1175 void ACPI_SYSTEM_XFACE
1176 AcpiDbExecuteThread (
1177     void                    *Context)
1178 {
1179     ACPI_STATUS             Status = AE_OK;
1180     ACPI_STATUS             MStatus;
1181 
1182 
1183     while (Status != AE_CTRL_TERMINATE)
1184     {
1185         AcpiGbl_MethodExecuting = FALSE;
1186         AcpiGbl_StepToNextCall = FALSE;
1187 
1188         MStatus = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_READY);
1189         if (ACPI_FAILURE (MStatus))
1190         {
1191             return;
1192         }
1193 
1194         Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1195 
1196         MStatus = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
1197         if (ACPI_FAILURE (MStatus))
1198         {
1199             return;
1200         }
1201     }
1202 }
1203 
1204 
1205 /*******************************************************************************
1206  *
1207  * FUNCTION:    AcpiDbSingleThread
1208  *
1209  * PARAMETERS:  None
1210  *
1211  * RETURN:      None
1212  *
1213  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1214  *              simply dispatches it.
1215  *
1216  ******************************************************************************/
1217 
1218 static void
1219 AcpiDbSingleThread (
1220     void)
1221 {
1222 
1223     AcpiGbl_MethodExecuting = FALSE;
1224     AcpiGbl_StepToNextCall = FALSE;
1225 
1226     (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1227 }
1228 
1229 
1230 /*******************************************************************************
1231  *
1232  * FUNCTION:    AcpiDbUserCommands
1233  *
1234  * PARAMETERS:  Prompt              - User prompt (depends on mode)
1235  *              Op                  - Current executing parse op
1236  *
1237  * RETURN:      None
1238  *
1239  * DESCRIPTION: Command line execution for the AML debugger. Commands are
1240  *              matched and dispatched here.
1241  *
1242  ******************************************************************************/
1243 
1244 ACPI_STATUS
1245 AcpiDbUserCommands (
1246     char                    Prompt,
1247     ACPI_PARSE_OBJECT       *Op)
1248 {
1249     ACPI_STATUS             Status = AE_OK;
1250 
1251 
1252     AcpiOsPrintf ("\n");
1253 
1254     /* TBD: [Restructure] Need a separate command line buffer for step mode */
1255 
1256     while (!AcpiGbl_DbTerminateThreads)
1257     {
1258         /* Force output to console until a command is entered */
1259 
1260         AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
1261 
1262         /* Different prompt if method is executing */
1263 
1264         if (!AcpiGbl_MethodExecuting)
1265         {
1266             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
1267         }
1268         else
1269         {
1270             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
1271         }
1272 
1273         /* Get the user input line */
1274 
1275         Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
1276             ACPI_DB_LINE_BUFFER_SIZE, NULL);
1277         if (ACPI_FAILURE (Status))
1278         {
1279             ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
1280             return (Status);
1281         }
1282 
1283         /* Check for single or multithreaded debug */
1284 
1285         if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
1286         {
1287             /*
1288              * Signal the debug thread that we have a command to execute,
1289              * and wait for the command to complete.
1290              */
1291             Status = AcpiUtReleaseMutex (ACPI_MTX_DEBUG_CMD_READY);
1292             if (ACPI_FAILURE (Status))
1293             {
1294                 return (Status);
1295             }
1296 
1297             Status = AcpiUtAcquireMutex (ACPI_MTX_DEBUG_CMD_COMPLETE);
1298             if (ACPI_FAILURE (Status))
1299             {
1300                 return (Status);
1301             }
1302         }
1303         else
1304         {
1305             /* Just call to the command line interpreter */
1306 
1307             AcpiDbSingleThread ();
1308         }
1309     }
1310 
1311     /*
1312      * Only this thread (the original thread) should actually terminate the
1313      * subsystem, because all the semaphores are deleted during termination
1314      */
1315     Status = AcpiTerminate ();
1316     return (Status);
1317 }
1318 
1319 #endif  /* ACPI_DEBUGGER */
1320