text: /******************************************************************************
   *
   * Module Name: ahdecode - Operator/Opcode decoding for acpihelp utility
   *
   *****************************************************************************/
  
  /******************************************************************************
   *
   * 1. Copyright Notice
   *
   * Some or all of this work - Copyright (c) 1999 - 2012, Intel Corp.
   * All rights reserved.
   *
   * 2. License
   *
   * 2.1. This is your license from Intel Corp. under its intellectual property
   * rights.  You may have additional license terms from the party that provided
   * you this software, covering your right to use that party's intellectual
   * property rights.
   *
   * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
   * copy of the source code appearing in this file ("Covered Code") an
   * irrevocable, perpetual, worldwide license under Intel's copyrights in the
   * base code distributed originally by Intel ("Original Intel Code") to copy,
   * make derivatives, distribute, use and display any portion of the Covered
   * Code in any form, with the right to sublicense such rights; and
   *
   * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
   * license (with the right to sublicense), under only those claims of Intel
   * patents that are infringed by the Original Intel Code, to make, use, sell,
   * offer to sell, and import the Covered Code and derivative works thereof
   * solely to the minimum extent necessary to exercise the above copyright
   * license, and in no event shall the patent license extend to any additions
   * to or modifications of the Original Intel Code.  No other license or right
   * is granted directly or by implication, estoppel or otherwise;
   *
   * The above copyright and patent license is granted only if the following
   * conditions are met:
   *
   * 3. Conditions
   *
   * 3.1. Redistribution of Source with Rights to Further Distribute Source.
   * Redistribution of source code of any substantial portion of the Covered
   * Code or modification with rights to further distribute source must include
   * the above Copyright Notice, the above License, this list of Conditions,
   * and the following Disclaimer and Export Compliance provision.  In addition,
   * Licensee must cause all Covered Code to which Licensee contributes to
   * contain a file documenting the changes Licensee made to create that Covered
   * Code and the date of any change.  Licensee must include in that file the
   * documentation of any changes made by any predecessor Licensee.  Licensee
   * must include a prominent statement that the modification is derived,
   * directly or indirectly, from Original Intel Code.
   *
   * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
   * Redistribution of source code of any substantial portion of the Covered
   * Code or modification without rights to further distribute source must
   * include the following Disclaimer and Export Compliance provision in the
   * documentation and/or other materials provided with distribution.  In
   * addition, Licensee may not authorize further sublicense of source of any
   * portion of the Covered Code, and must include terms to the effect that the
   * license from Licensee to its licensee is limited to the intellectual
   * property embodied in the software Licensee provides to its licensee, and
   * not to intellectual property embodied in modifications its licensee may
   * make.
   *
   * 3.3. Redistribution of Executable. Redistribution in executable form of any
   * substantial portion of the Covered Code or modification must reproduce the
   * above Copyright Notice, and the following Disclaimer and Export Compliance
   * provision in the documentation and/or other materials provided with the
   * distribution.
   *
   * 3.4. Intel retains all right, title, and interest in and to the Original
   * Intel Code.
   *
   * 3.5. Neither the name Intel nor any other trademark owned or controlled by
   * Intel shall be used in advertising or otherwise to promote the sale, use or
   * other dealings in products derived from or relating to the Covered Code
   * without prior written authorization from Intel.
   *
   * 4. Disclaimer and Export Compliance
   *
   * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
   * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
   * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
   * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
   * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
   * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
   * PARTICULAR PURPOSE.
   *
   * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
   * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
   * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
   * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
   * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
   * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
   * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
   * LIMITED REMEDY.
   *
   * 4.3. Licensee shall not export, either directly or indirectly, any of this
   * software or system incorporating such software without first obtaining any
   * required license or other approval from the U. S. Department of Commerce or
   * any other agency or department of the United States Government.  In the
   * event Licensee exports any such software from the United States or
   * re-exports any such software from a foreign destination, Licensee shall
   * ensure that the distribution and export/re-export of the software is in
   * compliance with all laws, regulations, orders, or other restrictions of the
   * U.S. Export Administration Regulations. Licensee agrees that neither it nor
   * any of its subsidiaries will export/re-export any technical data, process,
   * software, or service, directly or indirectly, to any country for which the
   * United States government or any agency thereof requires an export license,
   * other governmental approval, or letter of assurance, without first obtaining
   * such license, approval or letter.
   *
   *****************************************************************************/
  
  #include "acpihelp.h"
  
  #define ACPI_CREATE_PREDEFINED_TABLE
  #include "acpredef.h"
  
  #define BUFFER_LENGTH           128
  #define LINE_BUFFER_LENGTH      512
  
  static char         Gbl_Buffer[BUFFER_LENGTH];
  static char         Gbl_LineBuffer[LINE_BUFFER_LENGTH];
  static const char   *AcpiRtypeNames[] =
  {
      "/Integer",
      "/String",
      "/Buffer",
      "/Package",
      "/Reference",
  };
  
  
  /* Local prototypes */
  
  static BOOLEAN
  AhDisplayPredefinedName (
      char                    *Name,
      UINT32                  Length);
  
  static void
  AhDisplayPredefinedInfo (
      char                    *Name);
  
  static void
  AhGetExpectedTypes (
      char                    *Buffer,
      UINT32                  ExpectedBtypes);
  
  static void
  AhDisplayAmlOpcode (
      const AH_AML_OPCODE     *Op);
  
  static void
  AhDisplayAslOperator (
      const AH_ASL_OPERATOR   *Op);
  
  static void
  AhDisplayOperatorKeywords (
      const AH_ASL_OPERATOR   *Op);
  
  static void
  AhDisplayAslKeyword (
      const AH_ASL_KEYWORD    *Op);
  
  static void
  AhPrintOneField (
      UINT32                  Indent,
      UINT32                  CurrentPosition,
      UINT32                  MaxPosition,
      const char              *Field);
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhFindPredefinedNames (entry point for predefined name search)
   *
   * PARAMETERS:  NamePrefix          - Name or prefix to find. Must start with
   *                                    an underscore. NULL means "find all"
   *
   * RETURN:      None
   *
   * DESCRIPTION: Find and display all ACPI predefined names that match the
   *              input name or prefix. Includes the required number of arguments
   *              and the expected return type, if any.
   *
   ******************************************************************************/
  
  void
  AhFindPredefinedNames (
      char                    *NamePrefix)
  {
      UINT32                  Length;
      BOOLEAN                 Found;
      char                    Name[9];
  
  
      if (!NamePrefix)
      {
          Found = AhDisplayPredefinedName (Name, 0);
          return;
      }
  
      /* Contruct a local name or name prefix */
  
      AhStrupr (NamePrefix);
      if (*NamePrefix == '_')
      {
          NamePrefix++;
      }
  
      Name[0] = '_';
      strncpy (&Name[1], NamePrefix, 7);
  
      Length = strlen (Name);
      if (Length > 4)
      {
          printf ("%.8s: Predefined name must be 4 characters maximum\n", Name);
          return;
      }
  
      Found = AhDisplayPredefinedName (Name, Length);
      if (!Found)
      {
          printf ("%s, no matching predefined names\n", Name);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayPredefinedName
   *
   * PARAMETERS:  Name                - Name or name prefix
   *
   * RETURN:      TRUE if any names matched, FALSE otherwise
   *
   * DESCRIPTION: Display information about ACPI predefined names that match
   *              the input name or name prefix.
   *
   ******************************************************************************/
  
  static BOOLEAN
  AhDisplayPredefinedName (
      char                    *Name,
      UINT32                  Length)
  {
      const AH_PREDEFINED_NAME    *Info;
      BOOLEAN                     Found = FALSE;
      BOOLEAN                     Matched;
      UINT32                      i;
  
  
      /* Find/display all names that match the input name prefix */
  
      for (Info = AslPredefinedInfo; Info->Name; Info++)
      {
          if (!Name)
          {
              Found = TRUE;
              printf ("%s: <%s>\n", Info->Name, Info->Description);
              printf ("%*s%s\n", 6, " ", Info->Action);
  
              AhDisplayPredefinedInfo (Info->Name);
              continue;
          }
  
          Matched = TRUE;
          for (i = 0; i < Length; i++)
          {
              if (Info->Name[i] != Name[i])
              {
                  Matched = FALSE;
                  break;
              }
          }
  
          if (Matched)
          {
              Found = TRUE;
              printf ("%s: <%s>\n", Info->Name, Info->Description);
              printf ("%*s%s\n", 6, " ", Info->Action);
  
              AhDisplayPredefinedInfo (Info->Name);
          }
      }
  
      return (Found);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayPredefinedInfo
   *
   * PARAMETERS:  Name                - Exact 4-character ACPI name.
   *
   * RETURN:      None
   *
   * DESCRIPTION: Find the name in the main ACPICA predefined info table and
   *              display the # of arguments and the return value type.
   *
   *              Note: Resource Descriptor field names do not appear in this
   *              table -- thus, nothing will be displayed for them.
   *
   ******************************************************************************/
  
  static void
  AhDisplayPredefinedInfo (
      char                    *Name)
  {
      const ACPI_PREDEFINED_INFO  *ThisName;
      BOOLEAN                     Matched;
      UINT32                      i;
  
  
      /* Find/display only the exact input name */
  
      for (ThisName = PredefinedNames; ThisName->Info.Name[0]; ThisName++)
      {
          Matched = TRUE;
          for (i = 0; i < ACPI_NAME_SIZE; i++)
          {
              if (ThisName->Info.Name[i] != Name[i])
              {
                  Matched = FALSE;
                  break;
              }
          }
  
          if (Matched)
          {
              AhGetExpectedTypes (Gbl_Buffer, ThisName->Info.ExpectedBtypes);
  
              printf ("%*s%4.4s has %u arguments, returns: %s\n",
                  6, " ", ThisName->Info.Name, ThisName->Info.ParamCount,
                  ThisName->Info.ExpectedBtypes ? Gbl_Buffer : "-Nothing-");
              return;
          }
  
          if (ThisName->Info.ExpectedBtypes & ACPI_RTYPE_PACKAGE)
          {
              ThisName++;
          }
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhGetExpectedTypes
   *
   * PARAMETERS:  Buffer              - Where the formatted string is returned
   *              ExpectedBTypes      - Bitfield of expected data types
   *
   * RETURN:      Formatted string in Buffer.
   *
   * DESCRIPTION: Format the expected object types into a printable string.
   *
   ******************************************************************************/
  
  static void
  AhGetExpectedTypes (
      char                    *Buffer,
      UINT32                  ExpectedBtypes)
  {
      UINT32                  ThisRtype;
      UINT32                  i;
      UINT32                  j;
  
  
      j = 1;
      Buffer[0] = 0;
      ThisRtype = ACPI_RTYPE_INTEGER;
  
      for (i = 0; i < ACPI_NUM_RTYPES; i++)
      {
          /* If one of the expected types, concatenate the name of this type */
  
          if (ExpectedBtypes & ThisRtype)
          {
              strcat (Buffer, &AcpiRtypeNames[i][j]);
              j = 0;              /* Use name separator from now on */
          }
          ThisRtype <<= 1;    /* Next Rtype */
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhFindAmlOpcode (entry point for AML opcode name search)
   *
   * PARAMETERS:  Name                - Name or prefix for an AML opcode.
   *                                    NULL means "find all"
   *
   * RETURN:      None
   *
   * DESCRIPTION: Find all AML opcodes that match the input Name or name
   *              prefix.
   *
   ******************************************************************************/
  
  void
  AhFindAmlOpcode (
      char                    *Name)
  {
      const AH_AML_OPCODE     *Op;
      BOOLEAN                 Found = FALSE;
  
  
      AhStrupr (Name);
  
      /* Find/display all opcode names that match the input name prefix */
  
      for (Op = AmlOpcodeInfo; Op->OpcodeString; Op++)
      {
          if (!Op->OpcodeName) /* Unused opcodes */
          {
              continue;
          }
  
          if (!Name)
          {
              AhDisplayAmlOpcode (Op);
              Found = TRUE;
              continue;
          }
  
          /* Upper case the opcode name before substring compare */
  
          strcpy (Gbl_Buffer, Op->OpcodeName);
          AhStrupr (Gbl_Buffer);
  
          if (strstr (Gbl_Buffer, Name) == Gbl_Buffer)
          {
              AhDisplayAmlOpcode (Op);
              Found = TRUE;
          }
      }
  
      if (!Found)
      {
          printf ("%s, no matching AML operators\n", Name);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDecodeAmlOpcode (entry point for AML opcode search)
   *
   * PARAMETERS:  OpcodeString        - String version of AML opcode
   *
   * RETURN:      None
   *
   * DESCRIPTION: Display information about the input AML opcode
   *
   ******************************************************************************/
  
  void
  AhDecodeAmlOpcode (
      char                    *OpcodeString)
  {
      const AH_AML_OPCODE     *Op;
      UINT32                  Opcode;
      UINT8                   Prefix;
  
  
      if (!OpcodeString)
      {
          AhFindAmlOpcode (NULL);
          return;
      }
  
      Opcode = ACPI_STRTOUL (OpcodeString, NULL, 16);
      if (Opcode > ACPI_UINT16_MAX)
      {
          printf ("Invalid opcode (more than 16 bits)\n");
          return;
      }
  
      /* Only valid opcode extension is 0x5B */
  
      Prefix = (Opcode & 0x0000FF00) >> 8;
      if (Prefix && (Prefix != 0x5B))
      {
          printf ("Invalid opcode (invalid extension prefix 0x%X)\n",
              Prefix);
          return;
      }
  
      /* Find/Display the opcode. May fall within an opcode range */
  
      for (Op = AmlOpcodeInfo; Op->OpcodeString; Op++)
      {
          if ((Opcode >= Op->OpcodeRangeStart) &&
              (Opcode <= Op->OpcodeRangeEnd))
          {
              AhDisplayAmlOpcode (Op);
          }
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayAmlOpcode
   *
   * PARAMETERS:  Op                  - An opcode info struct
   *
   * RETURN:      None
   *
   * DESCRIPTION: Display the contents of an AML opcode information struct
   *
   ******************************************************************************/
  
  static void
  AhDisplayAmlOpcode (
      const AH_AML_OPCODE     *Op)
  {
  
      if (!Op->OpcodeName)
      {
          printf ("%18s: Opcode=%-9s\n", "Reserved opcode", Op->OpcodeString);
          return;
      }
  
      /* Opcode name and value(s) */
  
      printf ("%18s: Opcode=%-9s Type (%s)",
          Op->OpcodeName, Op->OpcodeString, Op->Type);
  
      /* Optional fixed/static arguments */
  
      if (Op->FixedArguments)
      {
          printf (" FixedArgs (");
          AhPrintOneField (37, 36 + 7 + strlen (Op->Type) + 12,
              AH_MAX_AML_LINE_LENGTH, Op->FixedArguments);
          printf (")");
      }
  
      /* Optional variable-length argument list */
  
      if (Op->VariableArguments)
      {
          if (Op->FixedArguments)
          {
              printf ("\n%*s", 36, " ");
          }
          printf (" VariableArgs (");
          AhPrintOneField (37, 15, AH_MAX_AML_LINE_LENGTH, Op->VariableArguments);
          printf (")");
      }
      printf ("\n");
  
      /* Grammar specification */
  
      if (Op->Grammar)
      {
          AhPrintOneField (37, 0, AH_MAX_AML_LINE_LENGTH, Op->Grammar);
          printf ("\n");
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhFindAslKeywords (entry point for ASL keyword search)
   *
   * PARAMETERS:  Name                - Name or prefix for an ASL keyword.
   *                                    NULL means "find all"
   *
   * RETURN:      None
   *
   * DESCRIPTION: Find all ASL keywords that match the input Name or name
   *              prefix.
   *
   ******************************************************************************/
  
  void
  AhFindAslKeywords (
      char                    *Name)
  {
      const AH_ASL_KEYWORD    *Keyword;
      BOOLEAN                 Found = FALSE;
  
  
      AhStrupr (Name);
  
      for (Keyword = AslKeywordInfo; Keyword->Name; Keyword++)
      {
          if (!Name)
          {
              AhDisplayAslKeyword (Keyword);
              Found = TRUE;
              continue;
          }
  
          /* Upper case the operator name before substring compare */
  
          strcpy (Gbl_Buffer, Keyword->Name);
          AhStrupr (Gbl_Buffer);
  
          if (strstr (Gbl_Buffer, Name) == Gbl_Buffer)
          {
              AhDisplayAslKeyword (Keyword);
              Found = TRUE;
          }
      }
  
      if (!Found)
      {
          printf ("%s, no matching ASL keywords\n", Name);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayAslKeyword
   *
   * PARAMETERS:  Op                  - Pointer to ASL keyword with syntax info
   *
   * RETURN:      None
   *
   * DESCRIPTION: Format and display syntax info for an ASL keyword. Splits
   *              long lines appropriately for reading.
   *
   ******************************************************************************/
  
  static void
  AhDisplayAslKeyword (
      const AH_ASL_KEYWORD    *Op)
  {
  
      /* ASL keyword name and description */
  
      printf ("%22s: %s\n", Op->Name, Op->Description);
      if (!Op->KeywordList)
      {
          return;
      }
  
      /* List of actual keywords */
  
      AhPrintOneField (24, 0, AH_MAX_ASL_LINE_LENGTH, Op->KeywordList);
      printf ("\n");
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhFindAslOperators (entry point for ASL operator search)
   *
   * PARAMETERS:  Name                - Name or prefix for an ASL operator.
   *                                    NULL means "find all"
   *
   * RETURN:      None
   *
   * DESCRIPTION: Find all ASL operators that match the input Name or name
   *              prefix.
   *
   ******************************************************************************/
  
  void
  AhFindAslOperators (
      char                    *Name)
  {
      const AH_ASL_OPERATOR   *Operator;
      BOOLEAN                 Found = FALSE;
  
  
      AhStrupr (Name);
  
      /* Find/display all names that match the input name prefix */
  
      for (Operator = AslOperatorInfo; Operator->Name; Operator++)
      {
          if (!Name)
          {
              AhDisplayAslOperator (Operator);
              Found = TRUE;
              continue;
          }
  
          /* Upper case the operator name before substring compare */
  
          strcpy (Gbl_Buffer, Operator->Name);
          AhStrupr (Gbl_Buffer);
  
          if (strstr (Gbl_Buffer, Name) == Gbl_Buffer)
          {
              AhDisplayAslOperator (Operator);
              Found = TRUE;
          }
      }
  
      if (!Found)
      {
          printf ("%s, no matching ASL operators\n", Name);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayAslOperator
   *
   * PARAMETERS:  Op                  - Pointer to ASL operator with syntax info
   *
   * RETURN:      None
   *
   * DESCRIPTION: Format and display syntax info for an ASL operator. Splits
   *              long lines appropriately for reading.
   *
   ******************************************************************************/
  
  static void
  AhDisplayAslOperator (
      const AH_ASL_OPERATOR   *Op)
  {
  
      /* ASL operator name and description */
  
      printf ("%16s: %s\n", Op->Name, Op->Description);
      if (!Op->Syntax)
      {
          return;
      }
  
      /* Syntax for the operator */
  
      AhPrintOneField (18, 0, AH_MAX_ASL_LINE_LENGTH, Op->Syntax);
      printf ("\n");
  
      AhDisplayOperatorKeywords (Op);
      printf ("\n");
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayOperatorKeywords
   *
   * PARAMETERS:  Op                  - Pointer to ASL keyword with syntax info
   *
   * RETURN:      None
   *
   * DESCRIPTION: Display any/all keywords that are associated with the ASL
   *              operator.
   *
   ******************************************************************************/
  
  static void
  AhDisplayOperatorKeywords (
      const AH_ASL_OPERATOR   *Op)
  {
      char                    *Token;
      char                    *Separators = "(){}, ";
      BOOLEAN                 FirstKeyword = TRUE;
  
  
      if (!Op || !Op->Syntax)
      {
          return;
      }
  
      /*
       * Find all parameters that have the word "keyword" within, and then
       * display the info about that keyword
       */
      strcpy (Gbl_LineBuffer, Op->Syntax);
      Token = strtok (Gbl_LineBuffer, Separators);
      while (Token)
      {
          if (strstr (Token, "Keyword"))
          {
              if (FirstKeyword)
              {
                  printf ("\n");
                  FirstKeyword = FALSE;
              }
  
              /* Found a keyword, display keyword information */
  
              AhFindAslKeywords (Token);
          }
  
          Token = strtok (NULL, Separators);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhPrintOneField
   *
   * PARAMETERS:  Indent              - Indent length for new line(s)
   *              CurrentPosition     - Position on current line
   *              MaxPosition         - Max allowed line length
   *              Field               - Data to output
   *
   * RETURN:      Line position after field is written
   *
   * DESCRIPTION: Split long lines appropriately for ease of reading.
   *
   ******************************************************************************/
  
  static void
  AhPrintOneField (
      UINT32                  Indent,
      UINT32                  CurrentPosition,
      UINT32                  MaxPosition,
      const char              *Field)
  {
      UINT32                  Position;
      UINT32                  TokenLength;
      const char              *This;
      const char              *Next;
      const char              *Last;
  
  
      This = Field;
      Position = CurrentPosition;
  
      if (Position == 0)
      {
          printf ("%*s", (int) Indent, " ");
          Position = Indent;
      }
  
      Last = This + strlen (This);
      while ((Next = strpbrk (This, " ")))
      {
          TokenLength = Next - This;
          Position += TokenLength;
  
          /* Split long lines */
  
          if (Position > MaxPosition)
          {
              printf ("\n%*s", (int) Indent, " ");
              Position = TokenLength;
          }
  
          printf ("%.*s ", (int) TokenLength, This);
          This = Next + 1;
      }
  
      /* Handle last token on the input line */
  
      TokenLength = Last - This;
      if (TokenLength > 0)
      {
          Position += TokenLength;
          if (Position > MaxPosition)
          {
              printf ("\n%*s", (int) Indent, " ");
          }
          printf ("%s", This);
      }
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AhDisplayDeviceIds
   *
   * PARAMETERS:  None
   *
   * RETURN:      None
   *
   * DESCRIPTION: Display all PNP* and ACPI* device IDs defined in the ACPI spec.
   *
   ******************************************************************************/
  
  static const AH_DEVICE_ID  AhDeviceIds[] =
  {
      {"PNP0A05",     "Generic Container Device"},
      {"PNP0A06",     "Generic Container Device"},
      {"PNP0C08",     "ACPI core hardware"},
      {"PNP0C09",     "Embedded Controller Device"},
      {"PNP0C0A",     "Control Method Battery"},
      {"PNP0C0B",     "Fan"},
      {"PNP0C0C",     "Power Button Device"},
      {"PNP0C0D",     "Lid Device"},
      {"PNP0C0E",     "Sleep Button Device"},
      {"PNP0C0F",     "PCI Interrupt Link Device"},
      {"PNP0C80",     "Memory Device"},
  
      {"ACPI0001",    "SMBus 1.0 Host Controller"},
      {"ACPI0002",    "Smart Battery Subsystem"},
      {"ACPI0003",    "Power Source Device"},
      {"ACPI0004",    "Module Device"},
      {"ACPI0005",    "SMBus 2.0 Host Controller"},
      {"ACPI0006",    "GPE Block Device"},
      {"ACPI0007",    "Processor Device"},
      {"ACPI0008",    "Ambient Light Sensor Device"},
      {"ACPI0009",    "I/O xAPIC Device"},
      {"ACPI000A",    "I/O APIC Device"},
      {"ACPI000B",    "I/O SAPIC Device"},
      {"ACPI000C",    "Processor Aggregator Device"},
      {"ACPI000D",    "Power Meter Device"},
      {"ACPI000E",    "Time/Alarm Device"},
      {"ACPI000F",    "User Presence Detection Device"},
  
      {NULL, NULL}
  };
  
  void
  AhDisplayDeviceIds (
      void)
  {
      const AH_DEVICE_ID      *DeviceId = AhDeviceIds;
  
  
      printf ("ACPI and PNP Device IDs defined in the ACPI specification:\n\n");
      while (DeviceId->Name)
      {
          printf ("%8s   %s\n", DeviceId->Name, DeviceId->Description);
          DeviceId++;
      }
  }
  