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NetBSD/sys/dev/acpi/acpica/Subsystem/utmisc.c

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Import the 20010831 snapshot of the Intel ACPI Component Architecture ACPI reference implementation.
2001-09-28 03:11:59 +04:00
/*******************************************************************************
*
* Module Name: utmisc - common utility procedures
* xRevision: 50 $
*
******************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999, 2000, 2001, 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 __UTMISC_C__
#include "acpi.h"
#include "acevents.h"
#include "achware.h"
#include "acnamesp.h"
#include "acinterp.h"
#include "amlcode.h"
#include "acdebug.h"
#define _COMPONENT ACPI_UTILITIES
MODULE_NAME ("utmisc")
/*******************************************************************************
*
* FUNCTION: AcpiUtValidAcpiName
*
* PARAMETERS: Character - The character to be examined
*
* RETURN: 1 if Character may appear in a name, else 0
*
* DESCRIPTION: Check for a valid ACPI name. Each character must be one of:
* 1) Upper case alpha
* 2) numeric
* 3) underscore
*
******************************************************************************/
BOOLEAN
AcpiUtValidAcpiName (
UINT32 Name)
{
NATIVE_CHAR *NamePtr = (NATIVE_CHAR *) &Name;
UINT32 i;
FUNCTION_ENTRY ();
for (i = 0; i < ACPI_NAME_SIZE; i++)
{
if (!((NamePtr[i] == '_') ||
(NamePtr[i] >= 'A' && NamePtr[i] <= 'Z') ||
(NamePtr[i] >= '0' && NamePtr[i] <= '9')))
{
return (FALSE);
}
}
return (TRUE);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtValidAcpiCharacter
*
* PARAMETERS: Character - The character to be examined
*
* RETURN: 1 if Character may appear in a name, else 0
*
* DESCRIPTION: Check for a printable character
*
******************************************************************************/
BOOLEAN
AcpiUtValidAcpiCharacter (
NATIVE_CHAR Character)
{
FUNCTION_ENTRY ();
return ((BOOLEAN) ((Character == '_') ||
(Character >= 'A' && Character <= 'Z') ||
(Character >= '0' && Character <= '9')));
}
/*******************************************************************************
*
* FUNCTION: AcpiUtStrupr
*
* PARAMETERS: SrcString - The source string to convert to
*
* RETURN: SrcString
*
* DESCRIPTION: Convert string to uppercase
*
******************************************************************************/
NATIVE_CHAR *
AcpiUtStrupr (
NATIVE_CHAR *SrcString)
{
NATIVE_CHAR *String;
FUNCTION_ENTRY ();
/* Walk entire string, uppercasing the letters */
for (String = SrcString; *String; )
{
*String = (char) TOUPPER (*String);
String++;
}
return (SrcString);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtMutexInitialize
*
* PARAMETERS: None.
*
* RETURN: Status
*
* DESCRIPTION: Create the system mutex objects.
*
******************************************************************************/
ACPI_STATUS
AcpiUtMutexInitialize (
void)
{
UINT32 i;
ACPI_STATUS Status;
FUNCTION_TRACE ("UtMutexInitialize");
/*
* Create each of the predefined mutex objects
*/
for (i = 0; i < NUM_MTX; i++)
{
Status = AcpiUtCreateMutex (i);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtMutexTerminate
*
* PARAMETERS: None.
*
* RETURN: None.
*
* DESCRIPTION: Delete all of the system mutex objects.
*
******************************************************************************/
void
AcpiUtMutexTerminate (
void)
{
UINT32 i;
FUNCTION_TRACE ("UtMutexTerminate");
/*
* Delete each predefined mutex object
*/
for (i = 0; i < NUM_MTX; i++)
{
AcpiUtDeleteMutex (i);
}
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreateMutex
*
* PARAMETERS: MutexID - ID of the mutex to be created
*
* RETURN: Status
*
* DESCRIPTION: Create a mutex object.
*
******************************************************************************/
ACPI_STATUS
AcpiUtCreateMutex (
ACPI_MUTEX_HANDLE MutexId)
{
ACPI_STATUS Status = AE_OK;
FUNCTION_TRACE_U32 ("UtCreateMutex", MutexId);
if (MutexId > MAX_MTX)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
if (!AcpiGbl_AcpiMutexInfo[MutexId].Mutex)
{
Status = AcpiOsCreateSemaphore (1, 1,
&AcpiGbl_AcpiMutexInfo[MutexId].Mutex);
AcpiGbl_AcpiMutexInfo[MutexId].OwnerId = ACPI_MUTEX_NOT_ACQUIRED;
AcpiGbl_AcpiMutexInfo[MutexId].UseCount = 0;
}
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDeleteMutex
*
* PARAMETERS: MutexID - ID of the mutex to be deleted
*
* RETURN: Status
*
* DESCRIPTION: Delete a mutex object.
*
******************************************************************************/
ACPI_STATUS
AcpiUtDeleteMutex (
ACPI_MUTEX_HANDLE MutexId)
{
ACPI_STATUS Status;
FUNCTION_TRACE_U32 ("UtDeleteMutex", MutexId);
if (MutexId > MAX_MTX)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
Status = AcpiOsDeleteSemaphore (AcpiGbl_AcpiMutexInfo[MutexId].Mutex);
AcpiGbl_AcpiMutexInfo[MutexId].Mutex = NULL;
AcpiGbl_AcpiMutexInfo[MutexId].OwnerId = ACPI_MUTEX_NOT_ACQUIRED;
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtAcquireMutex
*
* PARAMETERS: MutexID - ID of the mutex to be acquired
*
* RETURN: Status
*
* DESCRIPTION: Acquire a mutex object.
*
******************************************************************************/
ACPI_STATUS
AcpiUtAcquireMutex (
ACPI_MUTEX_HANDLE MutexId)
{
ACPI_STATUS Status;
UINT32 i;
UINT32 ThisThreadId;
PROC_NAME ("UtAcquireMutex");
if (MutexId > MAX_MTX)
{
return (AE_BAD_PARAMETER);
}
ThisThreadId = AcpiOsGetThreadId ();
/*
* Deadlock prevention. Check if this thread owns any mutexes of value
* greater than or equal to this one. If so, the thread has violated
* the mutex ordering rule. This indicates a coding error somewhere in
* the ACPI subsystem code.
*/
for (i = MutexId; i < MAX_MTX; i++)
{
if (AcpiGbl_AcpiMutexInfo[i].OwnerId == ThisThreadId)
{
if (i == MutexId)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Mutex [%s] already acquired by this thread [%X]\n",
AcpiUtGetMutexName (MutexId), ThisThreadId));
return (AE_ALREADY_ACQUIRED);
}
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Invalid acquire order: Thread %X owns [%s], wants [%s]\n",
ThisThreadId, AcpiUtGetMutexName (i),
AcpiUtGetMutexName (MutexId)));
return (AE_ACQUIRE_DEADLOCK);
}
}
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
"Thread %X attempting to acquire Mutex [%s]\n",
ThisThreadId, AcpiUtGetMutexName (MutexId)));
Status = AcpiOsWaitSemaphore (AcpiGbl_AcpiMutexInfo[MutexId].Mutex,
1, WAIT_FOREVER);
if (ACPI_SUCCESS (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]\n",
ThisThreadId, AcpiUtGetMutexName (MutexId)));
AcpiGbl_AcpiMutexInfo[MutexId].UseCount++;
AcpiGbl_AcpiMutexInfo[MutexId].OwnerId = ThisThreadId;
}
else
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Thread %X could not acquire Mutex [%s] %s\n",
ThisThreadId, AcpiUtGetMutexName (MutexId),
AcpiFormatException (Status)));
}
return (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtReleaseMutex
*
* PARAMETERS: MutexID - ID of the mutex to be released
*
* RETURN: Status
*
* DESCRIPTION: Release a mutex object.
*
******************************************************************************/
ACPI_STATUS
AcpiUtReleaseMutex (
ACPI_MUTEX_HANDLE MutexId)
{
ACPI_STATUS Status;
UINT32 i;
UINT32 ThisThreadId;
PROC_NAME ("UtReleaseMutex");
ThisThreadId = AcpiOsGetThreadId ();
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
"Thread %X releasing Mutex [%s]\n", ThisThreadId,
AcpiUtGetMutexName (MutexId)));
if (MutexId > MAX_MTX)
{
return (AE_BAD_PARAMETER);
}
/*
* Mutex must be acquired in order to release it!
*/
if (AcpiGbl_AcpiMutexInfo[MutexId].OwnerId == ACPI_MUTEX_NOT_ACQUIRED)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Mutex [%s] is not acquired, cannot release\n",
AcpiUtGetMutexName (MutexId)));
return (AE_NOT_ACQUIRED);
}
/*
* Deadlock prevention. Check if this thread owns any mutexes of value
* greater than this one. If so, the thread has violated the mutex
* ordering rule. This indicates a coding error somewhere in
* the ACPI subsystem code.
*/
for (i = MutexId; i < MAX_MTX; i++)
{
if (AcpiGbl_AcpiMutexInfo[i].OwnerId == ThisThreadId)
{
if (i == MutexId)
{
continue;
}
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Invalid release order: owns [%s], releasing [%s]\n",
AcpiUtGetMutexName (i), AcpiUtGetMutexName (MutexId)));
return (AE_RELEASE_DEADLOCK);
}
}
/* Mark unlocked FIRST */
AcpiGbl_AcpiMutexInfo[MutexId].OwnerId = ACPI_MUTEX_NOT_ACQUIRED;
Status = AcpiOsSignalSemaphore (AcpiGbl_AcpiMutexInfo[MutexId].Mutex, 1);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Thread %X could not release Mutex [%s] %s\n",
ThisThreadId, AcpiUtGetMutexName (MutexId),
AcpiFormatException (Status)));
}
else
{
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]\n",
ThisThreadId, AcpiUtGetMutexName (MutexId)));
}
return (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreateUpdateStateAndPush
*
* PARAMETERS: *Object - Object to be added to the new state
* Action - Increment/Decrement
* StateList - List the state will be added to
*
* RETURN: None
*
* DESCRIPTION: Create a new state and push it
*
******************************************************************************/
ACPI_STATUS
AcpiUtCreateUpdateStateAndPush (
ACPI_OPERAND_OBJECT *Object,
UINT16 Action,
ACPI_GENERIC_STATE **StateList)
{
ACPI_GENERIC_STATE *State;
FUNCTION_ENTRY ();
/* Ignore null objects; these are expected */
if (!Object)
{
return (AE_OK);
}
State = AcpiUtCreateUpdateState (Object, Action);
if (!State)
{
return (AE_NO_MEMORY);
}
AcpiUtPushGenericState (StateList, State);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreatePkgStateAndPush
*
* PARAMETERS: *Object - Object to be added to the new state
* Action - Increment/Decrement
* StateList - List the state will be added to
*
* RETURN: None
*
* DESCRIPTION: Create a new state and push it
*
******************************************************************************/
ACPI_STATUS
AcpiUtCreatePkgStateAndPush (
void *InternalObject,
void *ExternalObject,
UINT16 Index,
ACPI_GENERIC_STATE **StateList)
{
ACPI_GENERIC_STATE *State;
FUNCTION_ENTRY ();
State = AcpiUtCreatePkgState (InternalObject, ExternalObject, Index);
if (!State)
{
return (AE_NO_MEMORY);
}
AcpiUtPushGenericState (StateList, State);
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtPushGenericState
*
* PARAMETERS: ListHead - Head of the state stack
* State - State object to push
*
* RETURN: Status
*
* DESCRIPTION: Push a state object onto a state stack
*
******************************************************************************/
void
AcpiUtPushGenericState (
ACPI_GENERIC_STATE **ListHead,
ACPI_GENERIC_STATE *State)
{
FUNCTION_TRACE ("UtPushGenericState");
/* Push the state object onto the front of the list (stack) */
State->Common.Next = *ListHead;
*ListHead = State;
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtPopGenericState
*
* PARAMETERS: ListHead - Head of the state stack
*
* RETURN: Status
*
* DESCRIPTION: Pop a state object from a state stack
*
******************************************************************************/
ACPI_GENERIC_STATE *
AcpiUtPopGenericState (
ACPI_GENERIC_STATE **ListHead)
{
ACPI_GENERIC_STATE *State;
FUNCTION_TRACE ("UtPopGenericState");
/* Remove the state object at the head of the list (stack) */
State = *ListHead;
if (State)
{
/* Update the list head */
*ListHead = State->Common.Next;
}
return_PTR (State);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreateGenericState
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Create a generic state object. Attempt to obtain one from
* the global state cache; If none available, create a new one.
*
******************************************************************************/
ACPI_GENERIC_STATE *
AcpiUtCreateGenericState (void)
{
ACPI_GENERIC_STATE *State;
FUNCTION_ENTRY ();
State = AcpiUtAcquireFromCache (ACPI_MEM_LIST_STATE);
/* Initialize */
if (State)
{
State->Common.DataType = ACPI_DESC_TYPE_STATE;
}
return (State);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreateUpdateState
*
* PARAMETERS: Object - Initial Object to be installed in the
* state
* Action - Update action to be performed
*
* RETURN: Status
*
* DESCRIPTION: Create an "Update State" - a flavor of the generic state used
* to update reference counts and delete complex objects such
* as packages.
*
******************************************************************************/
ACPI_GENERIC_STATE *
AcpiUtCreateUpdateState (
ACPI_OPERAND_OBJECT *Object,
UINT16 Action)
{
ACPI_GENERIC_STATE *State;
FUNCTION_TRACE_PTR ("UtCreateUpdateState", Object);
/* Create the generic state object */
State = AcpiUtCreateGenericState ();
if (!State)
{
return (NULL);
}
/* Init fields specific to the update struct */
State->Update.Object = Object;
State->Update.Value = Action;
return_PTR (State);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreatePkgState
*
* PARAMETERS: Object - Initial Object to be installed in the
* state
* Action - Update action to be performed
*
* RETURN: Status
*
* DESCRIPTION: Create an "Update State" - a flavor of the generic state used
* to update reference counts and delete complex objects such
* as packages.
*
******************************************************************************/
ACPI_GENERIC_STATE *
AcpiUtCreatePkgState (
void *InternalObject,
void *ExternalObject,
UINT16 Index)
{
ACPI_GENERIC_STATE *State;
FUNCTION_TRACE_PTR ("UtCreatePkgState", InternalObject);
/* Create the generic state object */
State = AcpiUtCreateGenericState ();
if (!State)
{
return (NULL);
}
/* Init fields specific to the update struct */
State->Pkg.SourceObject = (ACPI_OPERAND_OBJECT *) InternalObject;
State->Pkg.DestObject = ExternalObject;
State->Pkg.Index = Index;
State->Pkg.NumPackages = 1;
return_PTR (State);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtCreateControlState
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Create a "Control State" - a flavor of the generic state used
* to support nested IF/WHILE constructs in the AML.
*
******************************************************************************/
ACPI_GENERIC_STATE *
AcpiUtCreateControlState (
void)
{
ACPI_GENERIC_STATE *State;
FUNCTION_TRACE ("UtCreateControlState");
/* Create the generic state object */
State = AcpiUtCreateGenericState ();
if (!State)
{
return (NULL);
}
/* Init fields specific to the control struct */
State->Common.State = CONTROL_CONDITIONAL_EXECUTING;
return_PTR (State);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDeleteGenericState
*
* PARAMETERS: State - The state object to be deleted
*
* RETURN: Status
*
* DESCRIPTION: Put a state object back into the global state cache. The object
* is not actually freed at this time.
*
******************************************************************************/
void
AcpiUtDeleteGenericState (
ACPI_GENERIC_STATE *State)
{
FUNCTION_TRACE ("UtDeleteGenericState");
AcpiUtReleaseToCache (ACPI_MEM_LIST_STATE, State);
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtDeleteGenericStateCache
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Purge the global state object cache. Used during subsystem
* termination.
*
******************************************************************************/
void
AcpiUtDeleteGenericStateCache (
void)
{
FUNCTION_TRACE ("UtDeleteGenericStateCache");
AcpiUtDeleteGenericCache (ACPI_MEM_LIST_STATE);
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: AcpiUtResolvePackageReferences
*
* PARAMETERS: ObjDesc - The Package object on which to resolve refs
*
* RETURN: Status
*
* DESCRIPTION: Walk through a package and turn internal references into values
*
******************************************************************************/
ACPI_STATUS
AcpiUtResolvePackageReferences (
ACPI_OPERAND_OBJECT *ObjDesc)
{
UINT32 Count;
ACPI_OPERAND_OBJECT *SubObject;
FUNCTION_TRACE ("UtResolvePackageReferences");
if (ObjDesc->Common.Type != ACPI_TYPE_PACKAGE)
{
/* The object must be a package */
REPORT_ERROR (("Must resolve Package Refs on a Package\n"));
return_ACPI_STATUS(AE_ERROR);
}
/*
* TBD: what about nested packages? */
for (Count = 0; Count < ObjDesc->Package.Count; Count++)
{
SubObject = ObjDesc->Package.Elements[Count];
if (SubObject->Common.Type == INTERNAL_TYPE_REFERENCE)
{
if (SubObject->Reference.Opcode == AML_ZERO_OP)
{
SubObject->Common.Type = ACPI_TYPE_INTEGER;
SubObject->Integer.Value = 0;
}
else if (SubObject->Reference.Opcode == AML_ONE_OP)
{
SubObject->Common.Type = ACPI_TYPE_INTEGER;
SubObject->Integer.Value = 1;
}
else if (SubObject->Reference.Opcode == AML_ONES_OP)
{
SubObject->Common.Type = ACPI_TYPE_INTEGER;
SubObject->Integer.Value = ACPI_INTEGER_MAX;
}
}
}
return_ACPI_STATUS(AE_OK);
}
#ifdef ACPI_DEBUG
/*******************************************************************************
*
* FUNCTION: AcpiUtDisplayInitPathname
*
* PARAMETERS: ObjHandle - Handle whose pathname will be displayed
* Path - Additional path string to be appended
*
* RETURN: ACPI_STATUS
*
* DESCRIPTION: Display full pathnbame of an object, DEBUG ONLY
*
******************************************************************************/
void
AcpiUtDisplayInitPathname (
ACPI_HANDLE ObjHandle,
char *Path)
{
ACPI_STATUS Status;
UINT32 Length = 128;
char Buffer[128];
PROC_NAME ("UtDisplayInitPathname");
Status = AcpiNsHandleToPathname (ObjHandle, &Length, Buffer);
if (ACPI_SUCCESS (Status))
{
if (Path)
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "%s.%s\n", Buffer, Path));
}
else
{
ACPI_DEBUG_PRINT ((ACPI_DB_INIT, "%s\n", Buffer));
}
}
}
#endif
/*******************************************************************************
*
* FUNCTION: AcpiUtWalkPackageTree
*
* PARAMETERS: ObjDesc - The Package object on which to resolve refs
*
* RETURN: Status
*
* DESCRIPTION: Walk through a package
*
******************************************************************************/
ACPI_STATUS
AcpiUtWalkPackageTree (
ACPI_OPERAND_OBJECT *SourceObject,
void *TargetObject,
ACPI_PKG_CALLBACK WalkCallback,
void *Context)
{
ACPI_STATUS Status = AE_OK;
ACPI_GENERIC_STATE *StateList = NULL;
ACPI_GENERIC_STATE *State;
UINT32 ThisIndex;
ACPI_OPERAND_OBJECT *ThisSourceObj;
FUNCTION_TRACE ("UtWalkPackageTree");
State = AcpiUtCreatePkgState (SourceObject, TargetObject, 0);
if (!State)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
while (State)
{
ThisIndex = State->Pkg.Index;
ThisSourceObj = (ACPI_OPERAND_OBJECT *)
State->Pkg.SourceObject->Package.Elements[ThisIndex];
/*
* Check for
* 1) An uninitialized package element. It is completely
* legal to declare a package and leave it uninitialized
* 2) Not an internal object - can be a namespace node instead
* 3) Any type other than a package. Packages are handled in else
* case below.
*/
if ((!ThisSourceObj) ||
(!VALID_DESCRIPTOR_TYPE (
ThisSourceObj, ACPI_DESC_TYPE_INTERNAL)) ||
(!IS_THIS_OBJECT_TYPE (
ThisSourceObj, ACPI_TYPE_PACKAGE)))
{
Status = WalkCallback (ACPI_COPY_TYPE_SIMPLE, ThisSourceObj,
State, Context);
if (ACPI_FAILURE (Status))
{
/* TBD: must delete package created up to this point */
return_ACPI_STATUS (Status);
}
State->Pkg.Index++;
while (State->Pkg.Index >= State->Pkg.SourceObject->Package.Count)
{
/*
* We've handled all of the objects at this level, This means
* that we have just completed a package. That package may
* have contained one or more packages itself.
*
* Delete this state and pop the previous state (package).
*/
AcpiUtDeleteGenericState (State);
State = AcpiUtPopGenericState (&StateList);
/* Finished when there are no more states */
if (!State)
{
/*
* We have handled all of the objects in the top level
* package just add the length of the package objects
* and exit
*/
return_ACPI_STATUS (AE_OK);
}
/*
* Go back up a level and move the index past the just
* completed package object.
*/
State->Pkg.Index++;
}
}
else
{
/* This is a sub-object of type package */
Status = WalkCallback (ACPI_COPY_TYPE_PACKAGE, ThisSourceObj,
State, Context);
if (ACPI_FAILURE (Status))
{
/* TBD: must delete package created up to this point */
return_ACPI_STATUS (Status);
}
/*
* The callback above returned a new target package object.
*/
/*
* Push the current state and create a new one
*/
AcpiUtPushGenericState (&StateList, State);
State = AcpiUtCreatePkgState (ThisSourceObj,
State->Pkg.ThisTargetObj, 0);
if (!State)
{
/* TBD: must delete package created up to this point */
return_ACPI_STATUS (AE_NO_MEMORY);
}
}
}
/* We should never get here */
return (AE_AML_INTERNAL);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtReportError
*
* PARAMETERS: ModuleName - Caller's module name (for error output)
* LineNumber - Caller's line number (for error output)
* ComponentId - Caller's component ID (for error output)
* Message - Error message to use on failure
*
* RETURN: None
*
* DESCRIPTION: Print error message
*
******************************************************************************/
void
AcpiUtReportError (
NATIVE_CHAR *ModuleName,
UINT32 LineNumber,
UINT32 ComponentId)
{
AcpiOsPrintf ("%8s-%04d: *** Error: ", ModuleName, LineNumber);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtReportWarning
*
* PARAMETERS: ModuleName - Caller's module name (for error output)
* LineNumber - Caller's line number (for error output)
* ComponentId - Caller's component ID (for error output)
* Message - Error message to use on failure
*
* RETURN: None
*
* DESCRIPTION: Print warning message
*
******************************************************************************/
void
AcpiUtReportWarning (
NATIVE_CHAR *ModuleName,
UINT32 LineNumber,
UINT32 ComponentId)
{
AcpiOsPrintf ("%8s-%04d: *** Warning: ", ModuleName, LineNumber);
}
/*******************************************************************************
*
* FUNCTION: AcpiUtReportInfo
*
* PARAMETERS: ModuleName - Caller's module name (for error output)
* LineNumber - Caller's line number (for error output)
* ComponentId - Caller's component ID (for error output)
* Message - Error message to use on failure
*
* RETURN: None
*
* DESCRIPTION: Print information message
*
******************************************************************************/
void
AcpiUtReportInfo (
NATIVE_CHAR *ModuleName,
UINT32 LineNumber,
UINT32 ComponentId)
{
AcpiOsPrintf ("%8s-%04d: *** Info: ", ModuleName, LineNumber);
}