1 /*******************************************************************************
2  *
3  * Module Name: dbinput - user front-end to the AML debugger
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2016, 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 #include "acpi.h"
45 #include "accommon.h"
46 #include "acdebug.h"
47 
48 #ifdef ACPI_APPLICATION
49 #include "acapps.h"
50 #endif
51 
52 #ifdef ACPI_DEBUGGER
53 
54 #define _COMPONENT          ACPI_CA_DEBUGGER
55         ACPI_MODULE_NAME    ("dbinput")
56 
57 
58 /* Local prototypes */
59 
60 static UINT32
61 AcpiDbGetLine (
62     char                    *InputBuffer);
63 
64 static UINT32
65 AcpiDbMatchCommand (
66     char                    *UserCommand);
67 
68 static void
69 AcpiDbSingleThread (
70     void);
71 
72 static void
73 AcpiDbDisplayCommandInfo (
74     const char              *Command,
75     BOOLEAN                 DisplayAll);
76 
77 static void
78 AcpiDbDisplayHelp (
79     char                    *Command);
80 
81 static BOOLEAN
82 AcpiDbMatchCommandHelp (
83     const char                  *Command,
84     const ACPI_DB_COMMAND_HELP  *Help);
85 
86 
87 /*
88  * Top-level debugger commands.
89  *
90  * This list of commands must match the string table below it
91  */
92 enum AcpiExDebuggerCommands
93 {
94     CMD_NOT_FOUND = 0,
95     CMD_NULL,
96     CMD_ALLOCATIONS,
97     CMD_ARGS,
98     CMD_ARGUMENTS,
99     CMD_BREAKPOINT,
100     CMD_BUSINFO,
101     CMD_CALL,
102     CMD_DEBUG,
103     CMD_DISASSEMBLE,
104     CMD_DISASM,
105     CMD_DUMP,
106     CMD_EVALUATE,
107     CMD_EXECUTE,
108     CMD_EXIT,
109     CMD_FIND,
110     CMD_GO,
111     CMD_HANDLERS,
112     CMD_HELP,
113     CMD_HELP2,
114     CMD_HISTORY,
115     CMD_HISTORY_EXE,
116     CMD_HISTORY_LAST,
117     CMD_INFORMATION,
118     CMD_INTEGRITY,
119     CMD_INTO,
120     CMD_LEVEL,
121     CMD_LIST,
122     CMD_LOCALS,
123     CMD_LOCKS,
124     CMD_METHODS,
125     CMD_NAMESPACE,
126     CMD_NOTIFY,
127     CMD_OBJECTS,
128     CMD_OSI,
129     CMD_OWNER,
130     CMD_PATHS,
131     CMD_PREDEFINED,
132     CMD_PREFIX,
133     CMD_QUIT,
134     CMD_REFERENCES,
135     CMD_RESOURCES,
136     CMD_RESULTS,
137     CMD_SET,
138     CMD_STATS,
139     CMD_STOP,
140     CMD_TABLES,
141     CMD_TEMPLATE,
142     CMD_TRACE,
143     CMD_TREE,
144     CMD_TYPE,
145 #ifdef ACPI_APPLICATION
146     CMD_ENABLEACPI,
147     CMD_EVENT,
148     CMD_GPE,
149     CMD_GPES,
150     CMD_SCI,
151     CMD_SLEEP,
152 
153     CMD_CLOSE,
154     CMD_LOAD,
155     CMD_OPEN,
156     CMD_UNLOAD,
157 
158     CMD_TERMINATE,
159     CMD_THREADS,
160 
161     CMD_TEST,
162 #endif
163 };
164 
165 #define CMD_FIRST_VALID     2
166 
167 
168 /* Second parameter is the required argument count */
169 
170 static const ACPI_DB_COMMAND_INFO   AcpiGbl_DbCommands[] =
171 {
172     {"<NOT FOUND>",  0},
173     {"<NULL>",       0},
174     {"ALLOCATIONS",  0},
175     {"ARGS",         0},
176     {"ARGUMENTS",    0},
177     {"BREAKPOINT",   1},
178     {"BUSINFO",      0},
179     {"CALL",         0},
180     {"DEBUG",        1},
181     {"DISASSEMBLE",  1},
182     {"DISASM",       1},
183     {"DUMP",         1},
184     {"EVALUATE",     1},
185     {"EXECUTE",      1},
186     {"EXIT",         0},
187     {"FIND",         1},
188     {"GO",           0},
189     {"HANDLERS",     0},
190     {"HELP",         0},
191     {"?",            0},
192     {"HISTORY",      0},
193     {"!",            1},
194     {"!!",           0},
195     {"INFORMATION",  0},
196     {"INTEGRITY",    0},
197     {"INTO",         0},
198     {"LEVEL",        0},
199     {"LIST",         0},
200     {"LOCALS",       0},
201     {"LOCKS",        0},
202     {"METHODS",      0},
203     {"NAMESPACE",    0},
204     {"NOTIFY",       2},
205     {"OBJECTS",      0},
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     {"SET",          3},
216     {"STATS",        1},
217     {"STOP",         0},
218     {"TABLES",       0},
219     {"TEMPLATE",     1},
220     {"TRACE",        1},
221     {"TREE",         0},
222     {"TYPE",         1},
223 #ifdef ACPI_APPLICATION
224     {"ENABLEACPI",   0},
225     {"EVENT",        1},
226     {"GPE",          1},
227     {"GPES",         0},
228     {"SCI",          0},
229     {"SLEEP",        0},
230 
231     {"CLOSE",        0},
232     {"LOAD",         1},
233     {"OPEN",         1},
234     {"UNLOAD",       1},
235 
236     {"TERMINATE",    0},
237     {"THREADS",      3},
238 
239     {"TEST",         1},
240 #endif
241     {NULL,           0}
242 };
243 
244 /*
245  * Help for all debugger commands. First argument is the number of lines
246  * of help to output for the command.
247  */
248 static const ACPI_DB_COMMAND_HELP   AcpiGbl_DbCommandHelp[] =
249 {
250     {0, "\nGeneral-Purpose Commands:",         "\n"},
251     {1, "  Allocations",                       "Display list of current memory allocations\n"},
252     {2, "  Dump <Address>|<Namepath>",         "\n"},
253     {0, "       [Byte|Word|Dword|Qword]",      "Display ACPI objects or memory\n"},
254     {1, "  Handlers",                          "Info about global handlers\n"},
255     {1, "  Help [Command]",                    "This help screen or individual command\n"},
256     {1, "  History",                           "Display command history buffer\n"},
257     {1, "  Level <DebugLevel>] [console]",     "Get/Set debug level for file or console\n"},
258     {1, "  Locks",                             "Current status of internal mutexes\n"},
259     {1, "  Osi [Install|Remove <name>]",       "Display or modify global _OSI list\n"},
260     {1, "  Quit or Exit",                      "Exit this command\n"},
261     {8, "  Stats <SubCommand>",                "Display namespace and memory statistics\n"},
262     {1, "     Allocations",                    "Display list of current memory allocations\n"},
263     {1, "     Memory",                         "Dump internal memory lists\n"},
264     {1, "     Misc",                           "Namespace search and mutex stats\n"},
265     {1, "     Objects",                        "Summary of namespace objects\n"},
266     {1, "     Sizes",                          "Sizes for each of the internal objects\n"},
267     {1, "     Stack",                          "Display CPU stack usage\n"},
268     {1, "     Tables",                         "Info about current ACPI table(s)\n"},
269     {1, "  Tables",                            "Display info about loaded ACPI tables\n"},
270     {1, "  ! <CommandNumber>",                 "Execute command from history buffer\n"},
271     {1, "  !!",                                "Execute last command again\n"},
272 
273     {0, "\nNamespace Access Commands:",        "\n"},
274     {1, "  Businfo",                           "Display system bus info\n"},
275     {1, "  Disassemble <Method>",              "Disassemble a control method\n"},
276     {1, "  Find <AcpiName> (? is wildcard)",   "Find ACPI name(s) with wildcards\n"},
277     {1, "  Integrity",                         "Validate namespace integrity\n"},
278     {1, "  Methods",                           "Display list of loaded control methods\n"},
279     {1, "  Namespace [Object] [Depth]",        "Display loaded namespace tree/subtree\n"},
280     {1, "  Notify <Object> <Value>",           "Send a notification on Object\n"},
281     {1, "  Objects [ObjectType]",              "Display summary of all objects or just given type\n"},
282     {1, "  Owner <OwnerId> [Depth]",           "Display loaded namespace by object owner\n"},
283     {1, "  Paths",                             "Display full pathnames of namespace objects\n"},
284     {1, "  Predefined",                        "Check all predefined names\n"},
285     {1, "  Prefix [<Namepath>]",               "Set or Get current execution prefix\n"},
286     {1, "  References <Addr>",                 "Find all references to object at addr\n"},
287     {1, "  Resources [DeviceName]",            "Display Device resources (no arg = all devices)\n"},
288     {1, "  Set N <NamedObject> <Value>",       "Set value for named integer\n"},
289     {1, "  Template <Object>",                 "Format/dump a Buffer/ResourceTemplate\n"},
290     {1, "  Type <Object>",                     "Display object type\n"},
291 
292     {0, "\nControl Method Execution Commands:","\n"},
293     {1, "  Arguments (or Args)",               "Display method arguments\n"},
294     {1, "  Breakpoint <AmlOffset>",            "Set an AML execution breakpoint\n"},
295     {1, "  Call",                              "Run to next control method invocation\n"},
296     {1, "  Debug <Namepath> [Arguments]",      "Single Step a control method\n"},
297     {6, "  Evaluate",                          "Synonym for Execute\n"},
298     {5, "  Execute <Namepath> [Arguments]",    "Execute control method\n"},
299     {1, "     Hex Integer",                    "Integer method argument\n"},
300     {1, "     \"Ascii String\"",               "String method argument\n"},
301     {1, "     (Hex Byte List)",                "Buffer method argument\n"},
302     {1, "     [Package Element List]",         "Package method argument\n"},
303     {1, "  Go",                                "Allow method to run to completion\n"},
304     {1, "  Information",                       "Display info about the current method\n"},
305     {1, "  Into",                              "Step into (not over) a method call\n"},
306     {1, "  List [# of Aml Opcodes]",           "Display method ASL statements\n"},
307     {1, "  Locals",                            "Display method local variables\n"},
308     {1, "  Results",                           "Display method result stack\n"},
309     {1, "  Set <A|L> <#> <Value>",             "Set method data (Arguments/Locals)\n"},
310     {1, "  Stop",                              "Terminate control method\n"},
311     {5, "  Trace <State> [<Namepath>] [Once]", "Trace control method execution\n"},
312     {1, "     Enable",                         "Enable all messages\n"},
313     {1, "     Disable",                        "Disable tracing\n"},
314     {1, "     Method",                         "Enable method execution messages\n"},
315     {1, "     Opcode",                         "Enable opcode execution messages\n"},
316     {1, "  Tree",                              "Display control method calling tree\n"},
317     {1, "  <Enter>",                           "Single step next AML opcode (over calls)\n"},
318 
319 #ifdef ACPI_APPLICATION
320     {0, "\nHardware Simulation Commands:",         "\n"},
321     {1, "  EnableAcpi",                        "Enable ACPI (hardware) mode\n"},
322     {1, "  Event <F|G> <Value>",               "Generate AcpiEvent (Fixed/GPE)\n"},
323     {1, "  Gpe <GpeNum> [GpeBlockDevice]",     "Simulate a GPE\n"},
324     {1, "  Gpes",                              "Display info on all GPE devices\n"},
325     {1, "  Sci",                               "Generate an SCI\n"},
326     {1, "  Sleep [SleepState]",                "Simulate sleep/wake sequence(s) (0-5)\n"},
327 
328     {0, "\nFile I/O Commands:",                "\n"},
329     {1, "  Close",                             "Close debug output file\n"},
330     {1, "  Load <Input Filename>",             "Load ACPI table from a file\n"},
331     {1, "  Open <Output Filename>",            "Open a file for debug output\n"},
332     {1, "  Unload <Namepath>",                 "Unload an ACPI table via namespace object\n"},
333 
334     {0, "\nUser Space Commands:",              "\n"},
335     {1, "  Terminate",                         "Delete namespace and all internal objects\n"},
336     {1, "  Thread <Threads><Loops><NamePath>", "Spawn threads to execute method(s)\n"},
337 
338     {0, "\nDebug Test Commands:",              "\n"},
339     {3, "  Test <TestName>",                   "Invoke a debug test\n"},
340     {1, "     Objects",                        "Read/write/compare all namespace data objects\n"},
341     {1, "     Predefined",                     "Execute all ACPI predefined names (_STA, etc.)\n"},
342 #endif
343     {0, NULL, NULL}
344 };
345 
346 
347 /*******************************************************************************
348  *
349  * FUNCTION:    AcpiDbMatchCommandHelp
350  *
351  * PARAMETERS:  Command             - Command string to match
352  *              Help                - Help table entry to attempt match
353  *
354  * RETURN:      TRUE if command matched, FALSE otherwise
355  *
356  * DESCRIPTION: Attempt to match a command in the help table in order to
357  *              print help information for a single command.
358  *
359  ******************************************************************************/
360 
361 static BOOLEAN
362 AcpiDbMatchCommandHelp (
363     const char                  *Command,
364     const ACPI_DB_COMMAND_HELP  *Help)
365 {
366     char                    *Invocation = Help->Invocation;
367     UINT32                  LineCount;
368 
369 
370     /* Valid commands in the help table begin with a couple of spaces */
371 
372     if (*Invocation != ' ')
373     {
374         return (FALSE);
375     }
376 
377     while (*Invocation == ' ')
378     {
379         Invocation++;
380     }
381 
382     /* Match command name (full command or substring) */
383 
384     while ((*Command) && (*Invocation) && (*Invocation != ' '))
385     {
386         if (tolower ((int) *Command) != tolower ((int) *Invocation))
387         {
388             return (FALSE);
389         }
390 
391         Invocation++;
392         Command++;
393     }
394 
395     /* Print the appropriate number of help lines */
396 
397     LineCount = Help->LineCount;
398     while (LineCount)
399     {
400         AcpiOsPrintf ("%-38s : %s", Help->Invocation, Help->Description);
401         Help++;
402         LineCount--;
403     }
404 
405     return (TRUE);
406 }
407 
408 
409 /*******************************************************************************
410  *
411  * FUNCTION:    AcpiDbDisplayCommandInfo
412  *
413  * PARAMETERS:  Command             - Command string to match
414  *              DisplayAll          - Display all matching commands, or just
415  *                                    the first one (substring match)
416  *
417  * RETURN:      None
418  *
419  * DESCRIPTION: Display help information for a Debugger command.
420  *
421  ******************************************************************************/
422 
423 static void
424 AcpiDbDisplayCommandInfo (
425     const char              *Command,
426     BOOLEAN                 DisplayAll)
427 {
428     const ACPI_DB_COMMAND_HELP  *Next;
429     BOOLEAN                     Matched;
430 
431 
432     Next = AcpiGbl_DbCommandHelp;
433     while (Next->Invocation)
434     {
435         Matched = AcpiDbMatchCommandHelp (Command, Next);
436         if (!DisplayAll && Matched)
437         {
438             return;
439         }
440 
441         Next++;
442     }
443 }
444 
445 
446 /*******************************************************************************
447  *
448  * FUNCTION:    AcpiDbDisplayHelp
449  *
450  * PARAMETERS:  Command             - Optional command string to display help.
451  *                                    if not specified, all debugger command
452  *                                    help strings are displayed
453  *
454  * RETURN:      None
455  *
456  * DESCRIPTION: Display help for a single debugger command, or all of them.
457  *
458  ******************************************************************************/
459 
460 static void
461 AcpiDbDisplayHelp (
462     char                    *Command)
463 {
464     const ACPI_DB_COMMAND_HELP  *Next = AcpiGbl_DbCommandHelp;
465 
466 
467     if (!Command)
468     {
469         /* No argument to help, display help for all commands */
470 
471         while (Next->Invocation)
472         {
473             AcpiOsPrintf ("%-38s%s", Next->Invocation, Next->Description);
474             Next++;
475         }
476     }
477     else
478     {
479         /* Display help for all commands that match the subtring */
480 
481         AcpiDbDisplayCommandInfo (Command, TRUE);
482     }
483 }
484 
485 
486 /*******************************************************************************
487  *
488  * FUNCTION:    AcpiDbGetNextToken
489  *
490  * PARAMETERS:  String          - Command buffer
491  *              Next            - Return value, end of next token
492  *
493  * RETURN:      Pointer to the start of the next token.
494  *
495  * DESCRIPTION: Command line parsing. Get the next token on the command line
496  *
497  ******************************************************************************/
498 
499 char *
500 AcpiDbGetNextToken (
501     char                    *String,
502     char                    **Next,
503     ACPI_OBJECT_TYPE        *ReturnType)
504 {
505     char                    *Start;
506     UINT32                  Depth;
507     ACPI_OBJECT_TYPE        Type = ACPI_TYPE_INTEGER;
508 
509 
510     /* At end of buffer? */
511 
512     if (!String || !(*String))
513     {
514         return (NULL);
515     }
516 
517     /* Remove any spaces at the beginning */
518 
519     if (*String == ' ')
520     {
521         while (*String && (*String == ' '))
522         {
523             String++;
524         }
525 
526         if (!(*String))
527         {
528             return (NULL);
529         }
530     }
531 
532     switch (*String)
533     {
534     case '"':
535 
536         /* This is a quoted string, scan until closing quote */
537 
538         String++;
539         Start = String;
540         Type = ACPI_TYPE_STRING;
541 
542         /* Find end of string */
543 
544         while (*String && (*String != '"'))
545         {
546             String++;
547         }
548         break;
549 
550     case '(':
551 
552         /* This is the start of a buffer, scan until closing paren */
553 
554         String++;
555         Start = String;
556         Type = ACPI_TYPE_BUFFER;
557 
558         /* Find end of buffer */
559 
560         while (*String && (*String != ')'))
561         {
562             String++;
563         }
564         break;
565 
566     case '[':
567 
568         /* This is the start of a package, scan until closing bracket */
569 
570         String++;
571         Depth = 1;
572         Start = String;
573         Type = ACPI_TYPE_PACKAGE;
574 
575         /* Find end of package (closing bracket) */
576 
577         while (*String)
578         {
579             /* Handle String package elements */
580 
581             if (*String == '"')
582             {
583                 /* Find end of string */
584 
585                 String++;
586                 while (*String && (*String != '"'))
587                 {
588                     String++;
589                 }
590                 if (!(*String))
591                 {
592                     break;
593                 }
594             }
595             else if (*String == '[')
596             {
597                 Depth++;         /* A nested package declaration */
598             }
599             else if (*String == ']')
600             {
601                 Depth--;
602                 if (Depth == 0) /* Found final package closing bracket */
603                 {
604                     break;
605                 }
606             }
607 
608             String++;
609         }
610         break;
611 
612     default:
613 
614         Start = String;
615 
616         /* Find end of token */
617 
618         while (*String && (*String != ' '))
619         {
620             String++;
621         }
622         break;
623     }
624 
625     if (!(*String))
626     {
627         *Next = NULL;
628     }
629     else
630     {
631         *String = 0;
632         *Next = String + 1;
633     }
634 
635     *ReturnType = Type;
636     return (Start);
637 }
638 
639 
640 /*******************************************************************************
641  *
642  * FUNCTION:    AcpiDbGetLine
643  *
644  * PARAMETERS:  InputBuffer         - Command line buffer
645  *
646  * RETURN:      Count of arguments to the command
647  *
648  * DESCRIPTION: Get the next command line from the user. Gets entire line
649  *              up to the next newline
650  *
651  ******************************************************************************/
652 
653 static UINT32
654 AcpiDbGetLine (
655     char                    *InputBuffer)
656 {
657     UINT32                  i;
658     UINT32                  Count;
659     char                    *Next;
660     char                    *This;
661 
662 
663     if (AcpiUtSafeStrcpy (AcpiGbl_DbParsedBuf, sizeof (AcpiGbl_DbParsedBuf),
664         InputBuffer))
665     {
666         AcpiOsPrintf (
667             "Buffer overflow while parsing input line (max %u characters)\n",
668             sizeof (AcpiGbl_DbParsedBuf));
669         return (0);
670     }
671 
672     This = AcpiGbl_DbParsedBuf;
673     for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++)
674     {
675         AcpiGbl_DbArgs[i] = AcpiDbGetNextToken (This, &Next,
676             &AcpiGbl_DbArgTypes[i]);
677         if (!AcpiGbl_DbArgs[i])
678         {
679             break;
680         }
681 
682         This = Next;
683     }
684 
685     /* Uppercase the actual command */
686 
687     AcpiUtStrupr (AcpiGbl_DbArgs[0]);
688 
689     Count = i;
690     if (Count)
691     {
692         Count--;  /* Number of args only */
693     }
694 
695     return (Count);
696 }
697 
698 
699 /*******************************************************************************
700  *
701  * FUNCTION:    AcpiDbMatchCommand
702  *
703  * PARAMETERS:  UserCommand             - User command line
704  *
705  * RETURN:      Index into command array, -1 if not found
706  *
707  * DESCRIPTION: Search command array for a command match
708  *
709  ******************************************************************************/
710 
711 static UINT32
712 AcpiDbMatchCommand (
713     char                    *UserCommand)
714 {
715     UINT32                  i;
716 
717 
718     if (!UserCommand || UserCommand[0] == 0)
719     {
720         return (CMD_NULL);
721     }
722 
723     for (i = CMD_FIRST_VALID; AcpiGbl_DbCommands[i].Name; i++)
724     {
725         if (strstr (
726             ACPI_CAST_PTR (char, AcpiGbl_DbCommands[i].Name), UserCommand) ==
727             AcpiGbl_DbCommands[i].Name)
728         {
729             return (i);
730         }
731     }
732 
733     /* Command not recognized */
734 
735     return (CMD_NOT_FOUND);
736 }
737 
738 
739 /*******************************************************************************
740  *
741  * FUNCTION:    AcpiDbCommandDispatch
742  *
743  * PARAMETERS:  InputBuffer         - Command line buffer
744  *              WalkState           - Current walk
745  *              Op                  - Current (executing) parse op
746  *
747  * RETURN:      Status
748  *
749  * DESCRIPTION: Command dispatcher.
750  *
751  ******************************************************************************/
752 
753 ACPI_STATUS
754 AcpiDbCommandDispatch (
755     char                    *InputBuffer,
756     ACPI_WALK_STATE         *WalkState,
757     ACPI_PARSE_OBJECT       *Op)
758 {
759     UINT32                  Temp;
760     UINT32                  CommandIndex;
761     UINT32                  ParamCount;
762     char                    *CommandLine;
763     ACPI_STATUS             Status = AE_CTRL_TRUE;
764 
765 
766     /* If AcpiTerminate has been called, terminate this thread */
767 
768     if (AcpiGbl_DbTerminateLoop)
769     {
770         return (AE_CTRL_TERMINATE);
771     }
772 
773     /* Find command and add to the history buffer */
774 
775     ParamCount = AcpiDbGetLine (InputBuffer);
776     CommandIndex = AcpiDbMatchCommand (AcpiGbl_DbArgs[0]);
777     Temp = 0;
778 
779     /*
780      * We don't want to add the !! command to the history buffer. It
781      * would cause an infinite loop because it would always be the
782      * previous command.
783      */
784     if (CommandIndex != CMD_HISTORY_LAST)
785     {
786         AcpiDbAddToHistory (InputBuffer);
787     }
788 
789     /* Verify that we have the minimum number of params */
790 
791     if (ParamCount < AcpiGbl_DbCommands[CommandIndex].MinArgs)
792     {
793         AcpiOsPrintf ("%u parameters entered, [%s] requires %u parameters\n",
794             ParamCount, AcpiGbl_DbCommands[CommandIndex].Name,
795             AcpiGbl_DbCommands[CommandIndex].MinArgs);
796 
797         AcpiDbDisplayCommandInfo (
798             AcpiGbl_DbCommands[CommandIndex].Name, FALSE);
799         return (AE_CTRL_TRUE);
800     }
801 
802     /* Decode and dispatch the command */
803 
804     switch (CommandIndex)
805     {
806     case CMD_NULL:
807 
808         if (Op)
809         {
810             return (AE_OK);
811         }
812         break;
813 
814     case CMD_ALLOCATIONS:
815 
816 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
817         AcpiUtDumpAllocations ((UINT32) -1, NULL);
818 #endif
819         break;
820 
821     case CMD_ARGS:
822     case CMD_ARGUMENTS:
823 
824         AcpiDbDisplayArguments ();
825         break;
826 
827     case CMD_BREAKPOINT:
828 
829         AcpiDbSetMethodBreakpoint (AcpiGbl_DbArgs[1], WalkState, Op);
830         break;
831 
832     case CMD_BUSINFO:
833 
834         AcpiDbGetBusInfo ();
835         break;
836 
837     case CMD_CALL:
838 
839         AcpiDbSetMethodCallBreakpoint (Op);
840         Status = AE_OK;
841         break;
842 
843     case CMD_DEBUG:
844 
845         AcpiDbExecute (AcpiGbl_DbArgs[1],
846             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_SINGLE_STEP);
847         break;
848 
849     case CMD_DISASSEMBLE:
850     case CMD_DISASM:
851 
852         (void) AcpiDbDisassembleMethod (AcpiGbl_DbArgs[1]);
853         break;
854 
855     case CMD_DUMP:
856 
857         AcpiDbDecodeAndDisplayObject (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
858         break;
859 
860     case CMD_EVALUATE:
861     case CMD_EXECUTE:
862 
863         AcpiDbExecute (AcpiGbl_DbArgs[1],
864             &AcpiGbl_DbArgs[2], &AcpiGbl_DbArgTypes[2], EX_NO_SINGLE_STEP);
865         break;
866 
867     case CMD_FIND:
868 
869         Status = AcpiDbFindNameInNamespace (AcpiGbl_DbArgs[1]);
870         break;
871 
872     case CMD_GO:
873 
874         AcpiGbl_CmSingleStep = FALSE;
875         return (AE_OK);
876 
877     case CMD_HANDLERS:
878 
879         AcpiDbDisplayHandlers ();
880         break;
881 
882     case CMD_HELP:
883     case CMD_HELP2:
884 
885         AcpiDbDisplayHelp (AcpiGbl_DbArgs[1]);
886         break;
887 
888     case CMD_HISTORY:
889 
890         AcpiDbDisplayHistory ();
891         break;
892 
893     case CMD_HISTORY_EXE: /* ! command */
894 
895         CommandLine = AcpiDbGetFromHistory (AcpiGbl_DbArgs[1]);
896         if (!CommandLine)
897         {
898             return (AE_CTRL_TRUE);
899         }
900 
901         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
902         return (Status);
903 
904     case CMD_HISTORY_LAST: /* !! command */
905 
906         CommandLine = AcpiDbGetFromHistory (NULL);
907         if (!CommandLine)
908         {
909             return (AE_CTRL_TRUE);
910         }
911 
912         Status = AcpiDbCommandDispatch (CommandLine, WalkState, Op);
913         return (Status);
914 
915     case CMD_INFORMATION:
916 
917         AcpiDbDisplayMethodInfo (Op);
918         break;
919 
920     case CMD_INTEGRITY:
921 
922         AcpiDbCheckIntegrity ();
923         break;
924 
925     case CMD_INTO:
926 
927         if (Op)
928         {
929             AcpiGbl_CmSingleStep = TRUE;
930             return (AE_OK);
931         }
932         break;
933 
934     case CMD_LEVEL:
935 
936         if (ParamCount == 0)
937         {
938             AcpiOsPrintf (
939                 "Current debug level for file output is:    %8.8lX\n",
940                 AcpiGbl_DbDebugLevel);
941             AcpiOsPrintf (
942                 "Current debug level for console output is: %8.8lX\n",
943                 AcpiGbl_DbConsoleDebugLevel);
944         }
945         else if (ParamCount == 2)
946         {
947             Temp = AcpiGbl_DbConsoleDebugLevel;
948             AcpiGbl_DbConsoleDebugLevel =
949                 strtoul (AcpiGbl_DbArgs[1], NULL, 16);
950             AcpiOsPrintf (
951                 "Debug Level for console output was %8.8lX, now %8.8lX\n",
952                 Temp, AcpiGbl_DbConsoleDebugLevel);
953         }
954         else
955         {
956             Temp = AcpiGbl_DbDebugLevel;
957             AcpiGbl_DbDebugLevel = strtoul (AcpiGbl_DbArgs[1], NULL, 16);
958             AcpiOsPrintf (
959                 "Debug Level for file output was %8.8lX, now %8.8lX\n",
960                 Temp, AcpiGbl_DbDebugLevel);
961         }
962         break;
963 
964     case CMD_LIST:
965 
966         AcpiDbDisassembleAml (AcpiGbl_DbArgs[1], Op);
967         break;
968 
969     case CMD_LOCKS:
970 
971         AcpiDbDisplayLocks ();
972         break;
973 
974     case CMD_LOCALS:
975 
976         AcpiDbDisplayLocals ();
977         break;
978 
979     case CMD_METHODS:
980 
981         Status = AcpiDbDisplayObjects ("METHOD", AcpiGbl_DbArgs[1]);
982         break;
983 
984     case CMD_NAMESPACE:
985 
986         AcpiDbDumpNamespace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
987         break;
988 
989     case CMD_NOTIFY:
990 
991         Temp = strtoul (AcpiGbl_DbArgs[2], NULL, 0);
992         AcpiDbSendNotify (AcpiGbl_DbArgs[1], Temp);
993         break;
994 
995     case CMD_OBJECTS:
996 
997         AcpiUtStrupr (AcpiGbl_DbArgs[1]);
998         Status = AcpiDbDisplayObjects (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
999         break;
1000 
1001     case CMD_OSI:
1002 
1003         AcpiDbDisplayInterfaces (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1004         break;
1005 
1006     case CMD_OWNER:
1007 
1008         AcpiDbDumpNamespaceByOwner (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1009         break;
1010 
1011     case CMD_PATHS:
1012 
1013         AcpiDbDumpNamespacePaths ();
1014         break;
1015 
1016     case CMD_PREFIX:
1017 
1018         AcpiDbSetScope (AcpiGbl_DbArgs[1]);
1019         break;
1020 
1021     case CMD_REFERENCES:
1022 
1023         AcpiDbFindReferences (AcpiGbl_DbArgs[1]);
1024         break;
1025 
1026     case CMD_RESOURCES:
1027 
1028         AcpiDbDisplayResources (AcpiGbl_DbArgs[1]);
1029         break;
1030 
1031     case CMD_RESULTS:
1032 
1033         AcpiDbDisplayResults ();
1034         break;
1035 
1036     case CMD_SET:
1037 
1038         AcpiDbSetMethodData (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1039             AcpiGbl_DbArgs[3]);
1040         break;
1041 
1042     case CMD_STATS:
1043 
1044         Status = AcpiDbDisplayStatistics (AcpiGbl_DbArgs[1]);
1045         break;
1046 
1047     case CMD_STOP:
1048 
1049         return (AE_NOT_IMPLEMENTED);
1050 
1051     case CMD_TABLES:
1052 
1053         AcpiDbDisplayTableInfo (AcpiGbl_DbArgs[1]);
1054         break;
1055 
1056     case CMD_TEMPLATE:
1057 
1058         AcpiDbDisplayTemplate (AcpiGbl_DbArgs[1]);
1059         break;
1060 
1061     case CMD_TRACE:
1062 
1063         AcpiDbTrace (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2], AcpiGbl_DbArgs[3]);
1064         break;
1065 
1066     case CMD_TREE:
1067 
1068         AcpiDbDisplayCallingTree ();
1069         break;
1070 
1071     case CMD_TYPE:
1072 
1073         AcpiDbDisplayObjectType (AcpiGbl_DbArgs[1]);
1074         break;
1075 
1076 #ifdef ACPI_APPLICATION
1077 
1078     /* Hardware simulation commands. */
1079 
1080     case CMD_ENABLEACPI:
1081 #if (!ACPI_REDUCED_HARDWARE)
1082 
1083         Status = AcpiEnable();
1084         if (ACPI_FAILURE(Status))
1085         {
1086             AcpiOsPrintf("AcpiEnable failed (Status=%X)\n", Status);
1087             return (Status);
1088         }
1089 #endif /* !ACPI_REDUCED_HARDWARE */
1090         break;
1091 
1092     case CMD_EVENT:
1093 
1094         AcpiOsPrintf ("Event command not implemented\n");
1095         break;
1096 
1097     case CMD_GPE:
1098 
1099         AcpiDbGenerateGpe (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2]);
1100         break;
1101 
1102     case CMD_GPES:
1103 
1104         AcpiDbDisplayGpes ();
1105         break;
1106 
1107     case CMD_SCI:
1108 
1109         AcpiDbGenerateSci ();
1110         break;
1111 
1112     case CMD_SLEEP:
1113 
1114         Status = AcpiDbSleep (AcpiGbl_DbArgs[1]);
1115         break;
1116 
1117     /* File I/O commands. */
1118 
1119     case CMD_CLOSE:
1120 
1121         AcpiDbCloseDebugFile ();
1122         break;
1123 
1124     case CMD_LOAD:
1125         {
1126             ACPI_NEW_TABLE_DESC     *ListHead = NULL;
1127 
1128             Status = AcGetAllTablesFromFile (AcpiGbl_DbArgs[1],
1129                 ACPI_GET_ALL_TABLES, &ListHead);
1130             if (ACPI_SUCCESS (Status))
1131             {
1132                 AcpiDbLoadTables (ListHead);
1133             }
1134         }
1135         break;
1136 
1137     case CMD_OPEN:
1138 
1139         AcpiDbOpenDebugFile (AcpiGbl_DbArgs[1]);
1140         break;
1141 
1142     /* User space commands. */
1143 
1144     case CMD_TERMINATE:
1145 
1146         AcpiDbSetOutputDestination (ACPI_DB_REDIRECTABLE_OUTPUT);
1147         AcpiUtSubsystemShutdown ();
1148 
1149         /*
1150          * TBD: [Restructure] Need some way to re-initialize without
1151          * re-creating the semaphores!
1152          */
1153 
1154         AcpiGbl_DbTerminateLoop = TRUE;
1155         /*  AcpiInitialize (NULL);  */
1156         break;
1157 
1158     case CMD_THREADS:
1159 
1160         AcpiDbCreateExecutionThreads (AcpiGbl_DbArgs[1], AcpiGbl_DbArgs[2],
1161             AcpiGbl_DbArgs[3]);
1162         break;
1163 
1164     /* Debug test commands. */
1165 
1166     case CMD_PREDEFINED:
1167 
1168         AcpiDbCheckPredefinedNames ();
1169         break;
1170 
1171     case CMD_TEST:
1172 
1173         AcpiDbExecuteTest (AcpiGbl_DbArgs[1]);
1174         break;
1175 
1176     case CMD_UNLOAD:
1177 
1178         AcpiDbUnloadAcpiTable (AcpiGbl_DbArgs[1]);
1179         break;
1180 #endif
1181 
1182     case CMD_EXIT:
1183     case CMD_QUIT:
1184 
1185         if (Op)
1186         {
1187             AcpiOsPrintf ("Method execution terminated\n");
1188             return (AE_CTRL_TERMINATE);
1189         }
1190 
1191         if (!AcpiGbl_DbOutputToFile)
1192         {
1193             AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
1194         }
1195 
1196 #ifdef ACPI_APPLICATION
1197         AcpiDbCloseDebugFile ();
1198 #endif
1199         AcpiGbl_DbTerminateLoop = TRUE;
1200         return (AE_CTRL_TERMINATE);
1201 
1202     case CMD_NOT_FOUND:
1203     default:
1204 
1205         AcpiOsPrintf ("%s: unknown command\n", AcpiGbl_DbArgs[0]);
1206         return (AE_CTRL_TRUE);
1207     }
1208 
1209     if (ACPI_SUCCESS (Status))
1210     {
1211         Status = AE_CTRL_TRUE;
1212     }
1213 
1214     return (Status);
1215 }
1216 
1217 
1218 /*******************************************************************************
1219  *
1220  * FUNCTION:    AcpiDbExecuteThread
1221  *
1222  * PARAMETERS:  Context         - Not used
1223  *
1224  * RETURN:      None
1225  *
1226  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1227  *              simply dispatches it.
1228  *
1229  ******************************************************************************/
1230 
1231 void ACPI_SYSTEM_XFACE
1232 AcpiDbExecuteThread (
1233     void                    *Context)
1234 {
1235     ACPI_STATUS             Status = AE_OK;
1236     ACPI_STATUS             MStatus;
1237 
1238 
1239     while (Status != AE_CTRL_TERMINATE && !AcpiGbl_DbTerminateLoop)
1240     {
1241         AcpiGbl_MethodExecuting = FALSE;
1242         AcpiGbl_StepToNextCall = FALSE;
1243 
1244         MStatus = AcpiOsAcquireMutex (AcpiGbl_DbCommandReady,
1245             ACPI_WAIT_FOREVER);
1246         if (ACPI_FAILURE (MStatus))
1247         {
1248             return;
1249         }
1250 
1251         Status = AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1252 
1253         AcpiOsReleaseMutex (AcpiGbl_DbCommandComplete);
1254     }
1255     AcpiGbl_DbThreadsTerminated = TRUE;
1256 }
1257 
1258 
1259 /*******************************************************************************
1260  *
1261  * FUNCTION:    AcpiDbSingleThread
1262  *
1263  * PARAMETERS:  None
1264  *
1265  * RETURN:      None
1266  *
1267  * DESCRIPTION: Debugger execute thread. Waits for a command line, then
1268  *              simply dispatches it.
1269  *
1270  ******************************************************************************/
1271 
1272 static void
1273 AcpiDbSingleThread (
1274     void)
1275 {
1276 
1277     AcpiGbl_MethodExecuting = FALSE;
1278     AcpiGbl_StepToNextCall = FALSE;
1279 
1280     (void) AcpiDbCommandDispatch (AcpiGbl_DbLineBuf, NULL, NULL);
1281 }
1282 
1283 
1284 /*******************************************************************************
1285  *
1286  * FUNCTION:    AcpiDbUserCommands
1287  *
1288  * PARAMETERS:  Prompt              - User prompt (depends on mode)
1289  *              Op                  - Current executing parse op
1290  *
1291  * RETURN:      None
1292  *
1293  * DESCRIPTION: Command line execution for the AML debugger. Commands are
1294  *              matched and dispatched here.
1295  *
1296  ******************************************************************************/
1297 
1298 ACPI_STATUS
1299 AcpiDbUserCommands (
1300     char                    Prompt,
1301     ACPI_PARSE_OBJECT       *Op)
1302 {
1303     ACPI_STATUS             Status = AE_OK;
1304 
1305 
1306     AcpiOsPrintf ("\n");
1307 
1308     /* TBD: [Restructure] Need a separate command line buffer for step mode */
1309 
1310     while (!AcpiGbl_DbTerminateLoop)
1311     {
1312         /* Force output to console until a command is entered */
1313 
1314         AcpiDbSetOutputDestination (ACPI_DB_CONSOLE_OUTPUT);
1315 
1316         /* Different prompt if method is executing */
1317 
1318         if (!AcpiGbl_MethodExecuting)
1319         {
1320             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
1321         }
1322         else
1323         {
1324             AcpiOsPrintf ("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
1325         }
1326 
1327         /* Get the user input line */
1328 
1329         Status = AcpiOsGetLine (AcpiGbl_DbLineBuf,
1330             ACPI_DB_LINE_BUFFER_SIZE, NULL);
1331         if (ACPI_FAILURE (Status))
1332         {
1333             ACPI_EXCEPTION ((AE_INFO, Status, "While parsing command line"));
1334             return (Status);
1335         }
1336 
1337         /* Check for single or multithreaded debug */
1338 
1339         if (AcpiGbl_DebuggerConfiguration & DEBUGGER_MULTI_THREADED)
1340         {
1341             /*
1342              * Signal the debug thread that we have a command to execute,
1343              * and wait for the command to complete.
1344              */
1345             AcpiOsReleaseMutex (AcpiGbl_DbCommandReady);
1346 
1347             Status = AcpiOsAcquireMutex (AcpiGbl_DbCommandComplete,
1348                 ACPI_WAIT_FOREVER);
1349             if (ACPI_FAILURE (Status))
1350             {
1351                 return (Status);
1352             }
1353         }
1354         else
1355         {
1356             /* Just call to the command line interpreter */
1357 
1358             AcpiDbSingleThread ();
1359         }
1360     }
1361 
1362     return (Status);
1363 }
1364 
1365 #endif  /* ACPI_DEBUGGER */
1366