These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / acpi / acpica / dbinput.c
diff --git a/kernel/drivers/acpi/acpica/dbinput.c b/kernel/drivers/acpi/acpica/dbinput.c
new file mode 100644 (file)
index 0000000..0480254
--- /dev/null
@@ -0,0 +1,1267 @@
+/*******************************************************************************
+ *
+ * Module Name: dbinput - user front-end to the AML debugger
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbinput")
+
+/* Local prototypes */
+static u32 acpi_db_get_line(char *input_buffer);
+
+static u32 acpi_db_match_command(char *user_command);
+
+static void acpi_db_single_thread(void);
+
+static void acpi_db_display_command_info(char *command, u8 display_all);
+
+static void acpi_db_display_help(char *command);
+
+static u8
+acpi_db_match_command_help(char *command,
+                          const struct acpi_db_command_help *help);
+
+/*
+ * Top-level debugger commands.
+ *
+ * This list of commands must match the string table below it
+ */
+enum acpi_ex_debugger_commands {
+       CMD_NOT_FOUND = 0,
+       CMD_NULL,
+       CMD_ALLOCATIONS,
+       CMD_ARGS,
+       CMD_ARGUMENTS,
+       CMD_BREAKPOINT,
+       CMD_BUSINFO,
+       CMD_CALL,
+       CMD_DEBUG,
+       CMD_DISASSEMBLE,
+       CMD_DISASM,
+       CMD_DUMP,
+       CMD_EVALUATE,
+       CMD_EXECUTE,
+       CMD_EXIT,
+       CMD_FIND,
+       CMD_GO,
+       CMD_HANDLERS,
+       CMD_HELP,
+       CMD_HELP2,
+       CMD_HISTORY,
+       CMD_HISTORY_EXE,
+       CMD_HISTORY_LAST,
+       CMD_INFORMATION,
+       CMD_INTEGRITY,
+       CMD_INTO,
+       CMD_LEVEL,
+       CMD_LIST,
+       CMD_LOCALS,
+       CMD_LOCKS,
+       CMD_METHODS,
+       CMD_NAMESPACE,
+       CMD_NOTIFY,
+       CMD_OBJECTS,
+       CMD_OSI,
+       CMD_OWNER,
+       CMD_PATHS,
+       CMD_PREDEFINED,
+       CMD_PREFIX,
+       CMD_QUIT,
+       CMD_REFERENCES,
+       CMD_RESOURCES,
+       CMD_RESULTS,
+       CMD_SET,
+       CMD_STATS,
+       CMD_STOP,
+       CMD_TABLES,
+       CMD_TEMPLATE,
+       CMD_TRACE,
+       CMD_TREE,
+       CMD_TYPE,
+#ifdef ACPI_APPLICATION
+       CMD_ENABLEACPI,
+       CMD_EVENT,
+       CMD_GPE,
+       CMD_GPES,
+       CMD_SCI,
+       CMD_SLEEP,
+
+       CMD_CLOSE,
+       CMD_LOAD,
+       CMD_OPEN,
+       CMD_UNLOAD,
+
+       CMD_TERMINATE,
+       CMD_THREADS,
+
+       CMD_TEST,
+#endif
+};
+
+#define CMD_FIRST_VALID     2
+
+/* Second parameter is the required argument count */
+
+static const struct acpi_db_command_info acpi_gbl_db_commands[] = {
+       {"<NOT FOUND>", 0},
+       {"<NULL>", 0},
+       {"ALLOCATIONS", 0},
+       {"ARGS", 0},
+       {"ARGUMENTS", 0},
+       {"BREAKPOINT", 1},
+       {"BUSINFO", 0},
+       {"CALL", 0},
+       {"DEBUG", 1},
+       {"DISASSEMBLE", 1},
+       {"DISASM", 1},
+       {"DUMP", 1},
+       {"EVALUATE", 1},
+       {"EXECUTE", 1},
+       {"EXIT", 0},
+       {"FIND", 1},
+       {"GO", 0},
+       {"HANDLERS", 0},
+       {"HELP", 0},
+       {"?", 0},
+       {"HISTORY", 0},
+       {"!", 1},
+       {"!!", 0},
+       {"INFORMATION", 0},
+       {"INTEGRITY", 0},
+       {"INTO", 0},
+       {"LEVEL", 0},
+       {"LIST", 0},
+       {"LOCALS", 0},
+       {"LOCKS", 0},
+       {"METHODS", 0},
+       {"NAMESPACE", 0},
+       {"NOTIFY", 2},
+       {"OBJECTS", 0},
+       {"OSI", 0},
+       {"OWNER", 1},
+       {"PATHS", 0},
+       {"PREDEFINED", 0},
+       {"PREFIX", 0},
+       {"QUIT", 0},
+       {"REFERENCES", 1},
+       {"RESOURCES", 0},
+       {"RESULTS", 0},
+       {"SET", 3},
+       {"STATS", 1},
+       {"STOP", 0},
+       {"TABLES", 0},
+       {"TEMPLATE", 1},
+       {"TRACE", 1},
+       {"TREE", 0},
+       {"TYPE", 1},
+#ifdef ACPI_APPLICATION
+       {"ENABLEACPI", 0},
+       {"EVENT", 1},
+       {"GPE", 1},
+       {"GPES", 0},
+       {"SCI", 0},
+       {"SLEEP", 0},
+
+       {"CLOSE", 0},
+       {"LOAD", 1},
+       {"OPEN", 1},
+       {"UNLOAD", 1},
+
+       {"TERMINATE", 0},
+       {"THREADS", 3},
+
+       {"TEST", 1},
+#endif
+       {NULL, 0}
+};
+
+/*
+ * Help for all debugger commands. First argument is the number of lines
+ * of help to output for the command.
+ */
+static const struct acpi_db_command_help acpi_gbl_db_command_help[] = {
+       {0, "\nGeneral-Purpose Commands:", "\n"},
+       {1, "  Allocations", "Display list of current memory allocations\n"},
+       {2, "  Dump <Address>|<Namepath>", "\n"},
+       {0, "       [Byte|Word|Dword|Qword]",
+        "Display ACPI objects or memory\n"},
+       {1, "  Handlers", "Info about global handlers\n"},
+       {1, "  Help [Command]", "This help screen or individual command\n"},
+       {1, "  History", "Display command history buffer\n"},
+       {1, "  Level <DebugLevel>] [console]",
+        "Get/Set debug level for file or console\n"},
+       {1, "  Locks", "Current status of internal mutexes\n"},
+       {1, "  Osi [Install|Remove <name>]",
+        "Display or modify global _OSI list\n"},
+       {1, "  Quit or Exit", "Exit this command\n"},
+       {8, "  Stats <SubCommand>",
+        "Display namespace and memory statistics\n"},
+       {1, "     Allocations", "Display list of current memory allocations\n"},
+       {1, "     Memory", "Dump internal memory lists\n"},
+       {1, "     Misc", "Namespace search and mutex stats\n"},
+       {1, "     Objects", "Summary of namespace objects\n"},
+       {1, "     Sizes", "Sizes for each of the internal objects\n"},
+       {1, "     Stack", "Display CPU stack usage\n"},
+       {1, "     Tables", "Info about current ACPI table(s)\n"},
+       {1, "  Tables", "Display info about loaded ACPI tables\n"},
+       {1, "  ! <CommandNumber>", "Execute command from history buffer\n"},
+       {1, "  !!", "Execute last command again\n"},
+
+       {0, "\nNamespace Access Commands:", "\n"},
+       {1, "  Businfo", "Display system bus info\n"},
+       {1, "  Disassemble <Method>", "Disassemble a control method\n"},
+       {1, "  Find <AcpiName> (? is wildcard)",
+        "Find ACPI name(s) with wildcards\n"},
+       {1, "  Integrity", "Validate namespace integrity\n"},
+       {1, "  Methods", "Display list of loaded control methods\n"},
+       {1, "  Namespace [Object] [Depth]",
+        "Display loaded namespace tree/subtree\n"},
+       {1, "  Notify <Object> <Value>", "Send a notification on Object\n"},
+       {1, "  Objects [ObjectType]",
+        "Display summary of all objects or just given type\n"},
+       {1, "  Owner <OwnerId> [Depth]",
+        "Display loaded namespace by object owner\n"},
+       {1, "  Paths", "Display full pathnames of namespace objects\n"},
+       {1, "  Predefined", "Check all predefined names\n"},
+       {1, "  Prefix [<Namepath>]", "Set or Get current execution prefix\n"},
+       {1, "  References <Addr>", "Find all references to object at addr\n"},
+       {1, "  Resources [DeviceName]",
+        "Display Device resources (no arg = all devices)\n"},
+       {1, "  Set N <NamedObject> <Value>", "Set value for named integer\n"},
+       {1, "  Template <Object>", "Format/dump a Buffer/ResourceTemplate\n"},
+       {1, "  Type <Object>", "Display object type\n"},
+
+       {0, "\nControl Method Execution Commands:", "\n"},
+       {1, "  Arguments (or Args)", "Display method arguments\n"},
+       {1, "  Breakpoint <AmlOffset>", "Set an AML execution breakpoint\n"},
+       {1, "  Call", "Run to next control method invocation\n"},
+       {1, "  Debug <Namepath> [Arguments]", "Single Step a control method\n"},
+       {6, "  Evaluate", "Synonym for Execute\n"},
+       {5, "  Execute <Namepath> [Arguments]", "Execute control method\n"},
+       {1, "     Hex Integer", "Integer method argument\n"},
+       {1, "     \"Ascii String\"", "String method argument\n"},
+       {1, "     (Hex Byte List)", "Buffer method argument\n"},
+       {1, "     [Package Element List]", "Package method argument\n"},
+       {1, "  Go", "Allow method to run to completion\n"},
+       {1, "  Information", "Display info about the current method\n"},
+       {1, "  Into", "Step into (not over) a method call\n"},
+       {1, "  List [# of Aml Opcodes]", "Display method ASL statements\n"},
+       {1, "  Locals", "Display method local variables\n"},
+       {1, "  Results", "Display method result stack\n"},
+       {1, "  Set <A|L> <#> <Value>", "Set method data (Arguments/Locals)\n"},
+       {1, "  Stop", "Terminate control method\n"},
+       {5, "  Trace <State> [<Namepath>] [Once]",
+        "Trace control method execution\n"},
+       {1, "     Enable", "Enable all messages\n"},
+       {1, "     Disable", "Disable tracing\n"},
+       {1, "     Method", "Enable method execution messages\n"},
+       {1, "     Opcode", "Enable opcode execution messages\n"},
+       {1, "  Tree", "Display control method calling tree\n"},
+       {1, "  <Enter>", "Single step next AML opcode (over calls)\n"},
+
+#ifdef ACPI_APPLICATION
+       {0, "\nHardware Simulation Commands:", "\n"},
+       {1, "  EnableAcpi", "Enable ACPI (hardware) mode\n"},
+       {1, "  Event <F|G> <Value>", "Generate AcpiEvent (Fixed/GPE)\n"},
+       {1, "  Gpe <GpeNum> [GpeBlockDevice]", "Simulate a GPE\n"},
+       {1, "  Gpes", "Display info on all GPE devices\n"},
+       {1, "  Sci", "Generate an SCI\n"},
+       {1, "  Sleep [SleepState]", "Simulate sleep/wake sequence(s) (0-5)\n"},
+
+       {0, "\nFile I/O Commands:", "\n"},
+       {1, "  Close", "Close debug output file\n"},
+       {1, "  Load <Input Filename>", "Load ACPI table from a file\n"},
+       {1, "  Open <Output Filename>", "Open a file for debug output\n"},
+       {1, "  Unload <Namepath>",
+        "Unload an ACPI table via namespace object\n"},
+
+       {0, "\nUser Space Commands:", "\n"},
+       {1, "  Terminate", "Delete namespace and all internal objects\n"},
+       {1, "  Thread <Threads><Loops><NamePath>",
+        "Spawn threads to execute method(s)\n"},
+
+       {0, "\nDebug Test Commands:", "\n"},
+       {3, "  Test <TestName>", "Invoke a debug test\n"},
+       {1, "     Objects", "Read/write/compare all namespace data objects\n"},
+       {1, "     Predefined",
+        "Execute all ACPI predefined names (_STA, etc.)\n"},
+#endif
+       {0, NULL, NULL}
+};
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_match_command_help
+ *
+ * PARAMETERS:  command             - Command string to match
+ *              help                - Help table entry to attempt match
+ *
+ * RETURN:      TRUE if command matched, FALSE otherwise
+ *
+ * DESCRIPTION: Attempt to match a command in the help table in order to
+ *              print help information for a single command.
+ *
+ ******************************************************************************/
+
+static u8
+acpi_db_match_command_help(char *command,
+                          const struct acpi_db_command_help *help)
+{
+       char *invocation = help->invocation;
+       u32 line_count;
+
+       /* Valid commands in the help table begin with a couple of spaces */
+
+       if (*invocation != ' ') {
+               return (FALSE);
+       }
+
+       while (*invocation == ' ') {
+               invocation++;
+       }
+
+       /* Match command name (full command or substring) */
+
+       while ((*command) && (*invocation) && (*invocation != ' ')) {
+               if (tolower((int)*command) != tolower((int)*invocation)) {
+                       return (FALSE);
+               }
+
+               invocation++;
+               command++;
+       }
+
+       /* Print the appropriate number of help lines */
+
+       line_count = help->line_count;
+       while (line_count) {
+               acpi_os_printf("%-38s : %s", help->invocation,
+                              help->description);
+               help++;
+               line_count--;
+       }
+
+       return (TRUE);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_command_info
+ *
+ * PARAMETERS:  command             - Command string to match
+ *              display_all         - Display all matching commands, or just
+ *                                    the first one (substring match)
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display help information for a Debugger command.
+ *
+ ******************************************************************************/
+
+static void acpi_db_display_command_info(char *command, u8 display_all)
+{
+       const struct acpi_db_command_help *next;
+       u8 matched;
+
+       next = acpi_gbl_db_command_help;
+       while (next->invocation) {
+               matched = acpi_db_match_command_help(command, next);
+               if (!display_all && matched) {
+                       return;
+               }
+
+               next++;
+       }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_display_help
+ *
+ * PARAMETERS:  command             - Optional command string to display help.
+ *                                    if not specified, all debugger command
+ *                                    help strings are displayed
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Display help for a single debugger command, or all of them.
+ *
+ ******************************************************************************/
+
+static void acpi_db_display_help(char *command)
+{
+       const struct acpi_db_command_help *next = acpi_gbl_db_command_help;
+
+       if (!command) {
+
+               /* No argument to help, display help for all commands */
+
+               while (next->invocation) {
+                       acpi_os_printf("%-38s%s", next->invocation,
+                                      next->description);
+                       next++;
+               }
+       } else {
+               /* Display help for all commands that match the subtring */
+
+               acpi_db_display_command_info(command, TRUE);
+       }
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_next_token
+ *
+ * PARAMETERS:  string          - Command buffer
+ *              next            - Return value, end of next token
+ *
+ * RETURN:      Pointer to the start of the next token.
+ *
+ * DESCRIPTION: Command line parsing. Get the next token on the command line
+ *
+ ******************************************************************************/
+
+char *acpi_db_get_next_token(char *string,
+                            char **next, acpi_object_type * return_type)
+{
+       char *start;
+       u32 depth;
+       acpi_object_type type = ACPI_TYPE_INTEGER;
+
+       /* At end of buffer? */
+
+       if (!string || !(*string)) {
+               return (NULL);
+       }
+
+       /* Remove any spaces at the beginning */
+
+       if (*string == ' ') {
+               while (*string && (*string == ' ')) {
+                       string++;
+               }
+
+               if (!(*string)) {
+                       return (NULL);
+               }
+       }
+
+       switch (*string) {
+       case '"':
+
+               /* This is a quoted string, scan until closing quote */
+
+               string++;
+               start = string;
+               type = ACPI_TYPE_STRING;
+
+               /* Find end of string */
+
+               while (*string && (*string != '"')) {
+                       string++;
+               }
+               break;
+
+       case '(':
+
+               /* This is the start of a buffer, scan until closing paren */
+
+               string++;
+               start = string;
+               type = ACPI_TYPE_BUFFER;
+
+               /* Find end of buffer */
+
+               while (*string && (*string != ')')) {
+                       string++;
+               }
+               break;
+
+       case '[':
+
+               /* This is the start of a package, scan until closing bracket */
+
+               string++;
+               depth = 1;
+               start = string;
+               type = ACPI_TYPE_PACKAGE;
+
+               /* Find end of package (closing bracket) */
+
+               while (*string) {
+
+                       /* Handle String package elements */
+
+                       if (*string == '"') {
+                               /* Find end of string */
+
+                               string++;
+                               while (*string && (*string != '"')) {
+                                       string++;
+                               }
+                               if (!(*string)) {
+                                       break;
+                               }
+                       } else if (*string == '[') {
+                               depth++;        /* A nested package declaration */
+                       } else if (*string == ']') {
+                               depth--;
+                               if (depth == 0) {       /* Found final package closing bracket */
+                                       break;
+                               }
+                       }
+
+                       string++;
+               }
+               break;
+
+       default:
+
+               start = string;
+
+               /* Find end of token */
+
+               while (*string && (*string != ' ')) {
+                       string++;
+               }
+               break;
+       }
+
+       if (!(*string)) {
+               *next = NULL;
+       } else {
+               *string = 0;
+               *next = string + 1;
+       }
+
+       *return_type = type;
+       return (start);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_line
+ *
+ * PARAMETERS:  input_buffer        - Command line buffer
+ *
+ * RETURN:      Count of arguments to the command
+ *
+ * DESCRIPTION: Get the next command line from the user. Gets entire line
+ *              up to the next newline
+ *
+ ******************************************************************************/
+
+static u32 acpi_db_get_line(char *input_buffer)
+{
+       u32 i;
+       u32 count;
+       char *next;
+       char *this;
+
+       if (acpi_ut_safe_strcpy
+           (acpi_gbl_db_parsed_buf, sizeof(acpi_gbl_db_parsed_buf),
+            input_buffer)) {
+               acpi_os_printf
+                   ("Buffer overflow while parsing input line (max %u characters)\n",
+                    sizeof(acpi_gbl_db_parsed_buf));
+               return (0);
+       }
+
+       this = acpi_gbl_db_parsed_buf;
+       for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++) {
+               acpi_gbl_db_args[i] = acpi_db_get_next_token(this, &next,
+                                                            &acpi_gbl_db_arg_types
+                                                            [i]);
+               if (!acpi_gbl_db_args[i]) {
+                       break;
+               }
+
+               this = next;
+       }
+
+       /* Uppercase the actual command */
+
+       if (acpi_gbl_db_args[0]) {
+               acpi_ut_strupr(acpi_gbl_db_args[0]);
+       }
+
+       count = i;
+       if (count) {
+               count--;        /* Number of args only */
+       }
+
+       return (count);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_match_command
+ *
+ * PARAMETERS:  user_command            - User command line
+ *
+ * RETURN:      Index into command array, -1 if not found
+ *
+ * DESCRIPTION: Search command array for a command match
+ *
+ ******************************************************************************/
+
+static u32 acpi_db_match_command(char *user_command)
+{
+       u32 i;
+
+       if (!user_command || user_command[0] == 0) {
+               return (CMD_NULL);
+       }
+
+       for (i = CMD_FIRST_VALID; acpi_gbl_db_commands[i].name; i++) {
+               if (strstr(acpi_gbl_db_commands[i].name, user_command) ==
+                   acpi_gbl_db_commands[i].name) {
+                       return (i);
+               }
+       }
+
+       /* Command not recognized */
+
+       return (CMD_NOT_FOUND);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_command_dispatch
+ *
+ * PARAMETERS:  input_buffer        - Command line buffer
+ *              walk_state          - Current walk
+ *              op                  - Current (executing) parse op
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Command dispatcher.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_db_command_dispatch(char *input_buffer,
+                        struct acpi_walk_state * walk_state,
+                        union acpi_parse_object * op)
+{
+       u32 temp;
+       u32 command_index;
+       u32 param_count;
+       char *command_line;
+       acpi_status status = AE_CTRL_TRUE;
+
+       /* If acpi_terminate has been called, terminate this thread */
+
+       if (acpi_gbl_db_terminate_loop) {
+               return (AE_CTRL_TERMINATE);
+       }
+
+       /* Find command and add to the history buffer */
+
+       param_count = acpi_db_get_line(input_buffer);
+       command_index = acpi_db_match_command(acpi_gbl_db_args[0]);
+       temp = 0;
+
+       /*
+        * We don't want to add the !! command to the history buffer. It
+        * would cause an infinite loop because it would always be the
+        * previous command.
+        */
+       if (command_index != CMD_HISTORY_LAST) {
+               acpi_db_add_to_history(input_buffer);
+       }
+
+       /* Verify that we have the minimum number of params */
+
+       if (param_count < acpi_gbl_db_commands[command_index].min_args) {
+               acpi_os_printf
+                   ("%u parameters entered, [%s] requires %u parameters\n",
+                    param_count, acpi_gbl_db_commands[command_index].name,
+                    acpi_gbl_db_commands[command_index].min_args);
+
+               acpi_db_display_command_info(acpi_gbl_db_commands
+                                            [command_index].name, FALSE);
+               return (AE_CTRL_TRUE);
+       }
+
+       /* Decode and dispatch the command */
+
+       switch (command_index) {
+       case CMD_NULL:
+
+               if (op) {
+                       return (AE_OK);
+               }
+               break;
+
+       case CMD_ALLOCATIONS:
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+               acpi_ut_dump_allocations((u32)-1, NULL);
+#endif
+               break;
+
+       case CMD_ARGS:
+       case CMD_ARGUMENTS:
+
+               acpi_db_display_arguments();
+               break;
+
+       case CMD_BREAKPOINT:
+
+               acpi_db_set_method_breakpoint(acpi_gbl_db_args[1], walk_state,
+                                             op);
+               break;
+
+       case CMD_BUSINFO:
+
+               acpi_db_get_bus_info();
+               break;
+
+       case CMD_CALL:
+
+               acpi_db_set_method_call_breakpoint(op);
+               status = AE_OK;
+               break;
+
+       case CMD_DEBUG:
+
+               acpi_db_execute(acpi_gbl_db_args[1],
+                               &acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2],
+                               EX_SINGLE_STEP);
+               break;
+
+       case CMD_DISASSEMBLE:
+       case CMD_DISASM:
+
+               (void)acpi_db_disassemble_method(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_DUMP:
+
+               acpi_db_decode_and_display_object(acpi_gbl_db_args[1],
+                                                 acpi_gbl_db_args[2]);
+               break;
+
+       case CMD_EVALUATE:
+       case CMD_EXECUTE:
+
+               acpi_db_execute(acpi_gbl_db_args[1],
+                               &acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2],
+                               EX_NO_SINGLE_STEP);
+               break;
+
+       case CMD_FIND:
+
+               status = acpi_db_find_name_in_namespace(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_GO:
+
+               acpi_gbl_cm_single_step = FALSE;
+               return (AE_OK);
+
+       case CMD_HANDLERS:
+
+               acpi_db_display_handlers();
+               break;
+
+       case CMD_HELP:
+       case CMD_HELP2:
+
+               acpi_db_display_help(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_HISTORY:
+
+               acpi_db_display_history();
+               break;
+
+       case CMD_HISTORY_EXE:   /* ! command */
+
+               command_line = acpi_db_get_from_history(acpi_gbl_db_args[1]);
+               if (!command_line) {
+                       return (AE_CTRL_TRUE);
+               }
+
+               status = acpi_db_command_dispatch(command_line, walk_state, op);
+               return (status);
+
+       case CMD_HISTORY_LAST:  /* !! command */
+
+               command_line = acpi_db_get_from_history(NULL);
+               if (!command_line) {
+                       return (AE_CTRL_TRUE);
+               }
+
+               status = acpi_db_command_dispatch(command_line, walk_state, op);
+               return (status);
+
+       case CMD_INFORMATION:
+
+               acpi_db_display_method_info(op);
+               break;
+
+       case CMD_INTEGRITY:
+
+               acpi_db_check_integrity();
+               break;
+
+       case CMD_INTO:
+
+               if (op) {
+                       acpi_gbl_cm_single_step = TRUE;
+                       return (AE_OK);
+               }
+               break;
+
+       case CMD_LEVEL:
+
+               if (param_count == 0) {
+                       acpi_os_printf
+                           ("Current debug level for file output is:    %8.8lX\n",
+                            acpi_gbl_db_debug_level);
+                       acpi_os_printf
+                           ("Current debug level for console output is: %8.8lX\n",
+                            acpi_gbl_db_console_debug_level);
+               } else if (param_count == 2) {
+                       temp = acpi_gbl_db_console_debug_level;
+                       acpi_gbl_db_console_debug_level =
+                           strtoul(acpi_gbl_db_args[1], NULL, 16);
+                       acpi_os_printf
+                           ("Debug Level for console output was %8.8lX, now %8.8lX\n",
+                            temp, acpi_gbl_db_console_debug_level);
+               } else {
+                       temp = acpi_gbl_db_debug_level;
+                       acpi_gbl_db_debug_level =
+                           strtoul(acpi_gbl_db_args[1], NULL, 16);
+                       acpi_os_printf
+                           ("Debug Level for file output was %8.8lX, now %8.8lX\n",
+                            temp, acpi_gbl_db_debug_level);
+               }
+               break;
+
+       case CMD_LIST:
+
+               acpi_db_disassemble_aml(acpi_gbl_db_args[1], op);
+               break;
+
+       case CMD_LOCKS:
+
+               acpi_db_display_locks();
+               break;
+
+       case CMD_LOCALS:
+
+               acpi_db_display_locals();
+               break;
+
+       case CMD_METHODS:
+
+               status = acpi_db_display_objects("METHOD", acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_NAMESPACE:
+
+               acpi_db_dump_namespace(acpi_gbl_db_args[1],
+                                      acpi_gbl_db_args[2]);
+               break;
+
+       case CMD_NOTIFY:
+
+               temp = strtoul(acpi_gbl_db_args[2], NULL, 0);
+               acpi_db_send_notify(acpi_gbl_db_args[1], temp);
+               break;
+
+       case CMD_OBJECTS:
+
+               acpi_ut_strupr(acpi_gbl_db_args[1]);
+               status =
+                   acpi_db_display_objects(acpi_gbl_db_args[1],
+                                           acpi_gbl_db_args[2]);
+               break;
+
+       case CMD_OSI:
+
+               acpi_db_display_interfaces(acpi_gbl_db_args[1],
+                                          acpi_gbl_db_args[2]);
+               break;
+
+       case CMD_OWNER:
+
+               acpi_db_dump_namespace_by_owner(acpi_gbl_db_args[1],
+                                               acpi_gbl_db_args[2]);
+               break;
+
+       case CMD_PATHS:
+
+               acpi_db_dump_namespace_paths();
+               break;
+
+       case CMD_PREFIX:
+
+               acpi_db_set_scope(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_REFERENCES:
+
+               acpi_db_find_references(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_RESOURCES:
+
+               acpi_db_display_resources(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_RESULTS:
+
+               acpi_db_display_results();
+               break;
+
+       case CMD_SET:
+
+               acpi_db_set_method_data(acpi_gbl_db_args[1],
+                                       acpi_gbl_db_args[2],
+                                       acpi_gbl_db_args[3]);
+               break;
+
+       case CMD_STATS:
+
+               status = acpi_db_display_statistics(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_STOP:
+
+               return (AE_NOT_IMPLEMENTED);
+
+       case CMD_TABLES:
+
+               acpi_db_display_table_info(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_TEMPLATE:
+
+               acpi_db_display_template(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_TRACE:
+
+               acpi_db_trace(acpi_gbl_db_args[1], acpi_gbl_db_args[2],
+                             acpi_gbl_db_args[3]);
+               break;
+
+       case CMD_TREE:
+
+               acpi_db_display_calling_tree();
+               break;
+
+       case CMD_TYPE:
+
+               acpi_db_display_object_type(acpi_gbl_db_args[1]);
+               break;
+
+#ifdef ACPI_APPLICATION
+
+               /* Hardware simulation commands. */
+
+       case CMD_ENABLEACPI:
+#if (!ACPI_REDUCED_HARDWARE)
+
+               status = acpi_enable();
+               if (ACPI_FAILURE(status)) {
+                       acpi_os_printf("AcpiEnable failed (Status=%X)\n",
+                                      status);
+                       return (status);
+               }
+#endif                         /* !ACPI_REDUCED_HARDWARE */
+               break;
+
+       case CMD_EVENT:
+
+               acpi_os_printf("Event command not implemented\n");
+               break;
+
+       case CMD_GPE:
+
+               acpi_db_generate_gpe(acpi_gbl_db_args[1], acpi_gbl_db_args[2]);
+               break;
+
+       case CMD_GPES:
+
+               acpi_db_display_gpes();
+               break;
+
+       case CMD_SCI:
+
+               acpi_db_generate_sci();
+               break;
+
+       case CMD_SLEEP:
+
+               status = acpi_db_sleep(acpi_gbl_db_args[1]);
+               break;
+
+               /* File I/O commands. */
+
+       case CMD_CLOSE:
+
+               acpi_db_close_debug_file();
+               break;
+
+       case CMD_LOAD:
+
+               status =
+                   acpi_db_get_table_from_file(acpi_gbl_db_args[1], NULL,
+                                               FALSE);
+               break;
+
+       case CMD_OPEN:
+
+               acpi_db_open_debug_file(acpi_gbl_db_args[1]);
+               break;
+
+               /* User space commands. */
+
+       case CMD_TERMINATE:
+
+               acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT);
+               acpi_ut_subsystem_shutdown();
+
+               /*
+                * TBD: [Restructure] Need some way to re-initialize without
+                * re-creating the semaphores!
+                */
+
+               acpi_gbl_db_terminate_loop = TRUE;
+               /*  acpi_initialize (NULL); */
+               break;
+
+       case CMD_THREADS:
+
+               acpi_db_create_execution_threads(acpi_gbl_db_args[1],
+                                                acpi_gbl_db_args[2],
+                                                acpi_gbl_db_args[3]);
+               break;
+
+               /* Debug test commands. */
+
+       case CMD_PREDEFINED:
+
+               acpi_db_check_predefined_names();
+               break;
+
+       case CMD_TEST:
+
+               acpi_db_execute_test(acpi_gbl_db_args[1]);
+               break;
+
+       case CMD_UNLOAD:
+
+               acpi_db_unload_acpi_table(acpi_gbl_db_args[1]);
+               break;
+#endif
+
+       case CMD_EXIT:
+       case CMD_QUIT:
+
+               if (op) {
+                       acpi_os_printf("Method execution terminated\n");
+                       return (AE_CTRL_TERMINATE);
+               }
+
+               if (!acpi_gbl_db_output_to_file) {
+                       acpi_dbg_level = ACPI_DEBUG_DEFAULT;
+               }
+#ifdef ACPI_APPLICATION
+               acpi_db_close_debug_file();
+#endif
+               acpi_gbl_db_terminate_loop = TRUE;
+               return (AE_CTRL_TERMINATE);
+
+       case CMD_NOT_FOUND:
+       default:
+
+               acpi_os_printf("%s: unknown command\n", acpi_gbl_db_args[0]);
+               return (AE_CTRL_TRUE);
+       }
+
+       if (ACPI_SUCCESS(status)) {
+               status = AE_CTRL_TRUE;
+       }
+
+       return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_execute_thread
+ *
+ * PARAMETERS:  context         - Not used
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Debugger execute thread. Waits for a command line, then
+ *              simply dispatches it.
+ *
+ ******************************************************************************/
+
+void ACPI_SYSTEM_XFACE acpi_db_execute_thread(void *context)
+{
+       acpi_status status = AE_OK;
+       acpi_status Mstatus;
+
+       while (status != AE_CTRL_TERMINATE && !acpi_gbl_db_terminate_loop) {
+               acpi_gbl_method_executing = FALSE;
+               acpi_gbl_step_to_next_call = FALSE;
+
+               Mstatus = acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
+                                               ACPI_WAIT_FOREVER);
+               if (ACPI_FAILURE(Mstatus)) {
+                       return;
+               }
+
+               status =
+                   acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL);
+
+               acpi_os_release_mutex(acpi_gbl_db_command_complete);
+       }
+       acpi_gbl_db_threads_terminated = TRUE;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_single_thread
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Debugger execute thread. Waits for a command line, then
+ *              simply dispatches it.
+ *
+ ******************************************************************************/
+
+static void acpi_db_single_thread(void)
+{
+
+       acpi_gbl_method_executing = FALSE;
+       acpi_gbl_step_to_next_call = FALSE;
+
+       (void)acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_user_commands
+ *
+ * PARAMETERS:  prompt              - User prompt (depends on mode)
+ *              op                  - Current executing parse op
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Command line execution for the AML debugger. Commands are
+ *              matched and dispatched here.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_user_commands(char prompt, union acpi_parse_object *op)
+{
+       acpi_status status = AE_OK;
+
+       acpi_os_printf("\n");
+
+       /* TBD: [Restructure] Need a separate command line buffer for step mode */
+
+       while (!acpi_gbl_db_terminate_loop) {
+
+               /* Force output to console until a command is entered */
+
+               acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT);
+
+               /* Different prompt if method is executing */
+
+               if (!acpi_gbl_method_executing) {
+                       acpi_os_printf("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT);
+               } else {
+                       acpi_os_printf("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT);
+               }
+
+               /* Get the user input line */
+
+               status = acpi_os_get_line(acpi_gbl_db_line_buf,
+                                         ACPI_DB_LINE_BUFFER_SIZE, NULL);
+               if (ACPI_FAILURE(status)) {
+                       ACPI_EXCEPTION((AE_INFO, status,
+                                       "While parsing command line"));
+                       return (status);
+               }
+
+               /* Check for single or multithreaded debug */
+
+               if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
+                       /*
+                        * Signal the debug thread that we have a command to execute,
+                        * and wait for the command to complete.
+                        */
+                       acpi_os_release_mutex(acpi_gbl_db_command_ready);
+                       if (ACPI_FAILURE(status)) {
+                               return (status);
+                       }
+
+                       status =
+                           acpi_os_acquire_mutex(acpi_gbl_db_command_complete,
+                                                 ACPI_WAIT_FOREVER);
+                       if (ACPI_FAILURE(status)) {
+                               return (status);
+                       }
+               } else {
+                       /* Just call to the command line interpreter */
+
+                       acpi_db_single_thread();
+               }
+       }
+
+       return (status);
+}