text: /******************************************************************************
   *
   * Module Name: dsargs - Support for execution of dynamic arguments for static
   *                       objects (regions, fields, buffer fields, etc.)
   *
   *****************************************************************************/
  
  /******************************************************************************
   *
   * 1. Copyright Notice
   *
   * Some or all of this work - Copyright (c) 1999 - 2014, 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.
   *
   *****************************************************************************/
  
  #define __DSARGS_C__
  
  #include "acpi.h"
  #include "accommon.h"
  #include "acparser.h"
  #include "amlcode.h"
  #include "acdispat.h"
  #include "acnamesp.h"
  
  #define _COMPONENT          ACPI_DISPATCHER
          ACPI_MODULE_NAME    ("dsargs")
  
  /* Local prototypes */
  
  static ACPI_STATUS
  AcpiDsExecuteArguments (
      ACPI_NAMESPACE_NODE     *Node,
      ACPI_NAMESPACE_NODE     *ScopeNode,
      UINT32                  AmlLength,
      UINT8                   *AmlStart);
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiDsExecuteArguments
   *
   * PARAMETERS:  Node                - Object NS node
   *              ScopeNode           - Parent NS node
   *              AmlLength           - Length of executable AML
   *              AmlStart            - Pointer to the AML
   *
   * RETURN:      Status.
   *
   * DESCRIPTION: Late (deferred) execution of region or field arguments
   *
   ******************************************************************************/
  
  static ACPI_STATUS
  AcpiDsExecuteArguments (
      ACPI_NAMESPACE_NODE     *Node,
      ACPI_NAMESPACE_NODE     *ScopeNode,
      UINT32                  AmlLength,
      UINT8                   *AmlStart)
  {
      ACPI_STATUS             Status;
      ACPI_PARSE_OBJECT       *Op;
      ACPI_WALK_STATE         *WalkState;
  
  
      ACPI_FUNCTION_TRACE (DsExecuteArguments);
  
  
      /* Allocate a new parser op to be the root of the parsed tree */
  
      Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
      if (!Op)
      {
          return_ACPI_STATUS (AE_NO_MEMORY);
      }
  
      /* Save the Node for use in AcpiPsParseAml */
  
      Op->Common.Node = ScopeNode;
  
      /* Create and initialize a new parser state */
  
      WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
      if (!WalkState)
      {
          Status = AE_NO_MEMORY;
          goto Cleanup;
      }
  
      Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
                      AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
      if (ACPI_FAILURE (Status))
      {
          AcpiDsDeleteWalkState (WalkState);
          goto Cleanup;
      }
  
      /* Mark this parse as a deferred opcode */
  
      WalkState->ParseFlags = ACPI_PARSE_DEFERRED_OP;
      WalkState->DeferredNode = Node;
  
      /* Pass1: Parse the entire declaration */
  
      Status = AcpiPsParseAml (WalkState);
      if (ACPI_FAILURE (Status))
      {
          goto Cleanup;
      }
  
      /* Get and init the Op created above */
  
      Op->Common.Node = Node;
      AcpiPsDeleteParseTree (Op);
  
      /* Evaluate the deferred arguments */
  
      Op = AcpiPsAllocOp (AML_INT_EVAL_SUBTREE_OP);
      if (!Op)
      {
          return_ACPI_STATUS (AE_NO_MEMORY);
      }
  
      Op->Common.Node = ScopeNode;
  
      /* Create and initialize a new parser state */
  
      WalkState = AcpiDsCreateWalkState (0, NULL, NULL, NULL);
      if (!WalkState)
      {
          Status = AE_NO_MEMORY;
          goto Cleanup;
      }
  
      /* Execute the opcode and arguments */
  
      Status = AcpiDsInitAmlWalk (WalkState, Op, NULL, AmlStart,
                      AmlLength, NULL, ACPI_IMODE_EXECUTE);
      if (ACPI_FAILURE (Status))
      {
          AcpiDsDeleteWalkState (WalkState);
          goto Cleanup;
      }
  
      /* Mark this execution as a deferred opcode */
  
      WalkState->DeferredNode = Node;
      Status = AcpiPsParseAml (WalkState);
  
  Cleanup:
      AcpiPsDeleteParseTree (Op);
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiDsGetBufferFieldArguments
   *
   * PARAMETERS:  ObjDesc         - A valid BufferField object
   *
   * RETURN:      Status.
   *
   * DESCRIPTION: Get BufferField Buffer and Index. This implements the late
   *              evaluation of these field attributes.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiDsGetBufferFieldArguments (
      ACPI_OPERAND_OBJECT     *ObjDesc)
  {
      ACPI_OPERAND_OBJECT     *ExtraDesc;
      ACPI_NAMESPACE_NODE     *Node;
      ACPI_STATUS             Status;
  
  
      ACPI_FUNCTION_TRACE_PTR (DsGetBufferFieldArguments, ObjDesc);
  
  
      if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
      {
          return_ACPI_STATUS (AE_OK);
      }
  
      /* Get the AML pointer (method object) and BufferField node */
  
      ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
      Node = ObjDesc->BufferField.Node;
  
      ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_BUFFER_FIELD,
          Node, NULL));
  
      ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n",
          AcpiUtGetNodeName (Node)));
  
      /* Execute the AML code for the TermArg arguments */
  
      Status = AcpiDsExecuteArguments (Node, Node->Parent,
                  ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiDsGetBankFieldArguments
   *
   * PARAMETERS:  ObjDesc         - A valid BankField object
   *
   * RETURN:      Status.
   *
   * DESCRIPTION: Get BankField BankValue. This implements the late
   *              evaluation of these field attributes.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiDsGetBankFieldArguments (
      ACPI_OPERAND_OBJECT     *ObjDesc)
  {
      ACPI_OPERAND_OBJECT     *ExtraDesc;
      ACPI_NAMESPACE_NODE     *Node;
      ACPI_STATUS             Status;
  
  
      ACPI_FUNCTION_TRACE_PTR (DsGetBankFieldArguments, ObjDesc);
  
  
      if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
      {
          return_ACPI_STATUS (AE_OK);
      }
  
      /* Get the AML pointer (method object) and BankField node */
  
      ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
      Node = ObjDesc->BankField.Node;
  
      ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_LOCAL_BANK_FIELD,
          Node, NULL));
  
      ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] BankField Arg Init\n",
          AcpiUtGetNodeName (Node)));
  
      /* Execute the AML code for the TermArg arguments */
  
      Status = AcpiDsExecuteArguments (Node, Node->Parent,
                  ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiDsGetBufferArguments
   *
   * PARAMETERS:  ObjDesc         - A valid Buffer object
   *
   * RETURN:      Status.
   *
   * DESCRIPTION: Get Buffer length and initializer byte list. This implements
   *              the late evaluation of these attributes.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiDsGetBufferArguments (
      ACPI_OPERAND_OBJECT     *ObjDesc)
  {
      ACPI_NAMESPACE_NODE     *Node;
      ACPI_STATUS             Status;
  
  
      ACPI_FUNCTION_TRACE_PTR (DsGetBufferArguments, ObjDesc);
  
  
      if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
      {
          return_ACPI_STATUS (AE_OK);
      }
  
      /* Get the Buffer node */
  
      Node = ObjDesc->Buffer.Node;
      if (!Node)
      {
          ACPI_ERROR ((AE_INFO,
              "No pointer back to namespace node in buffer object %p", ObjDesc));
          return_ACPI_STATUS (AE_AML_INTERNAL);
      }
  
      ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Buffer Arg Init\n"));
  
      /* Execute the AML code for the TermArg arguments */
  
      Status = AcpiDsExecuteArguments (Node, Node,
                  ObjDesc->Buffer.AmlLength, ObjDesc->Buffer.AmlStart);
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiDsGetPackageArguments
   *
   * PARAMETERS:  ObjDesc         - A valid Package object
   *
   * RETURN:      Status.
   *
   * DESCRIPTION: Get Package length and initializer byte list. This implements
   *              the late evaluation of these attributes.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiDsGetPackageArguments (
      ACPI_OPERAND_OBJECT     *ObjDesc)
  {
      ACPI_NAMESPACE_NODE     *Node;
      ACPI_STATUS             Status;
  
  
      ACPI_FUNCTION_TRACE_PTR (DsGetPackageArguments, ObjDesc);
  
  
      if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
      {
          return_ACPI_STATUS (AE_OK);
      }
  
      /* Get the Package node */
  
      Node = ObjDesc->Package.Node;
      if (!Node)
      {
          ACPI_ERROR ((AE_INFO,
              "No pointer back to namespace node in package %p", ObjDesc));
          return_ACPI_STATUS (AE_AML_INTERNAL);
      }
  
      ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Package Arg Init\n"));
  
      /* Execute the AML code for the TermArg arguments */
  
      Status = AcpiDsExecuteArguments (Node, Node,
                  ObjDesc->Package.AmlLength, ObjDesc->Package.AmlStart);
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiDsGetRegionArguments
   *
   * PARAMETERS:  ObjDesc         - A valid region object
   *
   * RETURN:      Status.
   *
   * DESCRIPTION: Get region address and length. This implements the late
   *              evaluation of these region attributes.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiDsGetRegionArguments (
      ACPI_OPERAND_OBJECT     *ObjDesc)
  {
      ACPI_NAMESPACE_NODE     *Node;
      ACPI_STATUS             Status;
      ACPI_OPERAND_OBJECT     *ExtraDesc;
  
  
      ACPI_FUNCTION_TRACE_PTR (DsGetRegionArguments, ObjDesc);
  
  
      if (ObjDesc->Region.Flags & AOPOBJ_DATA_VALID)
      {
          return_ACPI_STATUS (AE_OK);
      }
  
      ExtraDesc = AcpiNsGetSecondaryObject (ObjDesc);
      if (!ExtraDesc)
      {
          return_ACPI_STATUS (AE_NOT_EXIST);
      }
  
      /* Get the Region node */
  
      Node = ObjDesc->Region.Node;
  
      ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_REGION, Node, NULL));
  
      ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n",
          AcpiUtGetNodeName (Node), ExtraDesc->Extra.AmlStart));
  
      /* Execute the argument AML */
  
      Status = AcpiDsExecuteArguments (Node, ExtraDesc->Extra.ScopeNode,
                  ExtraDesc->Extra.AmlLength, ExtraDesc->Extra.AmlStart);
      if (ACPI_FAILURE (Status))
      {
          return_ACPI_STATUS (Status);
      }
  
      Status = AcpiUtAddAddressRange (ObjDesc->Region.SpaceId,
                   ObjDesc->Region.Address, ObjDesc->Region.Length,
                   Node);
      return_ACPI_STATUS (Status);
  }
  