diff options
Diffstat (limited to 'sys/contrib/dev/acpica/components/dispatcher/dswscope.c')
| -rw-r--r-- | sys/contrib/dev/acpica/components/dispatcher/dswscope.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/components/dispatcher/dswscope.c b/sys/contrib/dev/acpica/components/dispatcher/dswscope.c new file mode 100644 index 0000000..143d8b3 --- /dev/null +++ b/sys/contrib/dev/acpica/components/dispatcher/dswscope.c @@ -0,0 +1,239 @@ +/****************************************************************************** + * + * Module Name: dswscope - Scope stack manipulation + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, 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. + */ + +#define __DSWSCOPE_C__ + +#include <contrib/dev/acpica/include/acpi.h> +#include <contrib/dev/acpica/include/accommon.h> +#include <contrib/dev/acpica/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); +} + + |
