+++ /dev/null
-/******************************************************************************
- *
- * Module Name: dswscope - Scope stack manipulation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2017, 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.h"
-#include "accommon.h"
-#include "acdispat.h"
-
-
-#define _COMPONENT ACPI_DISPATCHER
- ACPI_MODULE_NAME ("dswscope")
-
-
-/****************************************************************************
- *
- * FUNCTION: AcpiDsScopeStackClear
- *
- * PARAMETERS: WalkState - Current state
- *
- * RETURN: None
- *
- * DESCRIPTION: Pop (and free) everything on the scope stack except the
- * root scope object (which remains at the stack top.)
- *
- ***************************************************************************/
-
-void
-AcpiDsScopeStackClear (
- ACPI_WALK_STATE *WalkState)
-{
- ACPI_GENERIC_STATE *ScopeInfo;
-
- ACPI_FUNCTION_NAME (DsScopeStackClear);
-
-
- while (WalkState->ScopeInfo)
- {
- /* Pop a scope off the stack */
-
- ScopeInfo = WalkState->ScopeInfo;
- WalkState->ScopeInfo = ScopeInfo->Scope.Next;
-
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
- "Popped object type (%s)\n",
- AcpiUtGetTypeName (ScopeInfo->Common.Value)));
-
- AcpiUtDeleteGenericState (ScopeInfo);
- }
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: AcpiDsScopeStackPush
- *
- * PARAMETERS: Node - Name to be made current
- * Type - Type of frame being pushed
- * WalkState - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Push the current scope on the scope stack, and make the
- * passed Node current.
- *
- ***************************************************************************/
-
-ACPI_STATUS
-AcpiDsScopeStackPush (
- ACPI_NAMESPACE_NODE *Node,
- ACPI_OBJECT_TYPE Type,
- ACPI_WALK_STATE *WalkState)
-{
- ACPI_GENERIC_STATE *ScopeInfo;
- ACPI_GENERIC_STATE *OldScopeInfo;
-
-
- ACPI_FUNCTION_TRACE (DsScopeStackPush);
-
-
- if (!Node)
- {
- /* Invalid scope */
-
- ACPI_ERROR ((AE_INFO, "Null scope parameter"));
- return_ACPI_STATUS (AE_BAD_PARAMETER);
- }
-
- /* Make sure object type is valid */
-
- if (!AcpiUtValidObjectType (Type))
- {
- ACPI_WARNING ((AE_INFO,
- "Invalid object type: 0x%X", Type));
- }
-
- /* Allocate a new scope object */
-
- ScopeInfo = AcpiUtCreateGenericState ();
- if (!ScopeInfo)
- {
- return_ACPI_STATUS (AE_NO_MEMORY);
- }
-
- /* Init new scope object */
-
- ScopeInfo->Common.DescriptorType = ACPI_DESC_TYPE_STATE_WSCOPE;
- ScopeInfo->Scope.Node = Node;
- ScopeInfo->Common.Value = (UINT16) Type;
-
- WalkState->ScopeDepth++;
-
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
- "[%.2d] Pushed scope ", (UINT32) WalkState->ScopeDepth));
-
- OldScopeInfo = WalkState->ScopeInfo;
- if (OldScopeInfo)
- {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
- "[%4.4s] (%s)",
- AcpiUtGetNodeName (OldScopeInfo->Scope.Node),
- AcpiUtGetTypeName (OldScopeInfo->Common.Value)));
- }
- else
- {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
- "[\\___] (%s)", "ROOT"));
- }
-
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
- ", New scope -> [%4.4s] (%s)\n",
- AcpiUtGetNodeName (ScopeInfo->Scope.Node),
- AcpiUtGetTypeName (ScopeInfo->Common.Value)));
-
- /* Push new scope object onto stack */
-
- AcpiUtPushGenericState (&WalkState->ScopeInfo, ScopeInfo);
- return_ACPI_STATUS (AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION: AcpiDsScopeStackPop
- *
- * PARAMETERS: WalkState - Current state
- *
- * RETURN: Status
- *
- * DESCRIPTION: Pop the scope stack once.
- *
- ***************************************************************************/
-
-ACPI_STATUS
-AcpiDsScopeStackPop (
- ACPI_WALK_STATE *WalkState)
-{
- ACPI_GENERIC_STATE *ScopeInfo;
- ACPI_GENERIC_STATE *NewScopeInfo;
-
-
- ACPI_FUNCTION_TRACE (DsScopeStackPop);
-
-
- /*
- * Pop scope info object off the stack.
- */
- ScopeInfo = AcpiUtPopGenericState (&WalkState->ScopeInfo);
- if (!ScopeInfo)
- {
- return_ACPI_STATUS (AE_STACK_UNDERFLOW);
- }
-
- WalkState->ScopeDepth--;
-
- ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
- "[%.2d] Popped scope [%4.4s] (%s), New scope -> ",
- (UINT32) WalkState->ScopeDepth,
- AcpiUtGetNodeName (ScopeInfo->Scope.Node),
- AcpiUtGetTypeName (ScopeInfo->Common.Value)));
-
- NewScopeInfo = WalkState->ScopeInfo;
- if (NewScopeInfo)
- {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
- "[%4.4s] (%s)\n",
- AcpiUtGetNodeName (NewScopeInfo->Scope.Node),
- AcpiUtGetTypeName (NewScopeInfo->Common.Value)));
- }
- else
- {
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EXEC,
- "[\\___] (ROOT)\n"));
- }
-
- AcpiUtDeleteGenericState (ScopeInfo);
- return_ACPI_STATUS (AE_OK);
-}
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