forked from KolibriOS/kolibrios
443 lines
15 KiB
C
443 lines
15 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: uteval - Object evaluation
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999 - 2011, 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 __UTEVAL_C__
|
|
|
|
#include "acpi.h"
|
|
#include "accommon.h"
|
|
#include "acnamesp.h"
|
|
|
|
|
|
#define _COMPONENT ACPI_UTILITIES
|
|
ACPI_MODULE_NAME ("uteval")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtEvaluateObject
|
|
*
|
|
* PARAMETERS: PrefixNode - Starting node
|
|
* Path - Path to object from starting node
|
|
* ExpectedReturnTypes - Bitmap of allowed return types
|
|
* ReturnDesc - Where a return value is stored
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Evaluates a namespace object and verifies the type of the
|
|
* return object. Common code that simplifies accessing objects
|
|
* that have required return objects of fixed types.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtEvaluateObject (
|
|
ACPI_NAMESPACE_NODE *PrefixNode,
|
|
char *Path,
|
|
UINT32 ExpectedReturnBtypes,
|
|
ACPI_OPERAND_OBJECT **ReturnDesc)
|
|
{
|
|
ACPI_EVALUATE_INFO *Info;
|
|
ACPI_STATUS Status;
|
|
UINT32 ReturnBtype;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtEvaluateObject);
|
|
|
|
|
|
/* Allocate the evaluation information block */
|
|
|
|
Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
|
|
if (!Info)
|
|
{
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
Info->PrefixNode = PrefixNode;
|
|
Info->Pathname = Path;
|
|
|
|
/* Evaluate the object/method */
|
|
|
|
Status = AcpiNsEvaluate (Info);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (Status == AE_NOT_FOUND)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[%4.4s.%s] was not found\n",
|
|
AcpiUtGetNodeName (PrefixNode), Path));
|
|
}
|
|
else
|
|
{
|
|
ACPI_ERROR_METHOD ("Method execution failed",
|
|
PrefixNode, Path, Status);
|
|
}
|
|
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Did we get a return object? */
|
|
|
|
if (!Info->ReturnObject)
|
|
{
|
|
if (ExpectedReturnBtypes)
|
|
{
|
|
ACPI_ERROR_METHOD ("No object was returned from",
|
|
PrefixNode, Path, AE_NOT_EXIST);
|
|
|
|
Status = AE_NOT_EXIST;
|
|
}
|
|
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Map the return object type to the bitmapped type */
|
|
|
|
switch ((Info->ReturnObject)->Common.Type)
|
|
{
|
|
case ACPI_TYPE_INTEGER:
|
|
ReturnBtype = ACPI_BTYPE_INTEGER;
|
|
break;
|
|
|
|
case ACPI_TYPE_BUFFER:
|
|
ReturnBtype = ACPI_BTYPE_BUFFER;
|
|
break;
|
|
|
|
case ACPI_TYPE_STRING:
|
|
ReturnBtype = ACPI_BTYPE_STRING;
|
|
break;
|
|
|
|
case ACPI_TYPE_PACKAGE:
|
|
ReturnBtype = ACPI_BTYPE_PACKAGE;
|
|
break;
|
|
|
|
default:
|
|
ReturnBtype = 0;
|
|
break;
|
|
}
|
|
|
|
if ((AcpiGbl_EnableInterpreterSlack) &&
|
|
(!ExpectedReturnBtypes))
|
|
{
|
|
/*
|
|
* We received a return object, but one was not expected. This can
|
|
* happen frequently if the "implicit return" feature is enabled.
|
|
* Just delete the return object and return AE_OK.
|
|
*/
|
|
AcpiUtRemoveReference (Info->ReturnObject);
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Is the return object one of the expected types? */
|
|
|
|
if (!(ExpectedReturnBtypes & ReturnBtype))
|
|
{
|
|
ACPI_ERROR_METHOD ("Return object type is incorrect",
|
|
PrefixNode, Path, AE_TYPE);
|
|
|
|
ACPI_ERROR ((AE_INFO,
|
|
"Type returned from %s was incorrect: %s, expected Btypes: 0x%X",
|
|
Path, AcpiUtGetObjectTypeName (Info->ReturnObject),
|
|
ExpectedReturnBtypes));
|
|
|
|
/* On error exit, we must delete the return object */
|
|
|
|
AcpiUtRemoveReference (Info->ReturnObject);
|
|
Status = AE_TYPE;
|
|
goto Cleanup;
|
|
}
|
|
|
|
/* Object type is OK, return it */
|
|
|
|
*ReturnDesc = Info->ReturnObject;
|
|
|
|
Cleanup:
|
|
ACPI_FREE (Info);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtEvaluateNumericObject
|
|
*
|
|
* PARAMETERS: ObjectName - Object name to be evaluated
|
|
* DeviceNode - Node for the device
|
|
* Value - Where the value is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Evaluates a numeric namespace object for a selected device
|
|
* and stores result in *Value.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtEvaluateNumericObject (
|
|
char *ObjectName,
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
UINT64 *Value)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtEvaluateNumericObject);
|
|
|
|
|
|
Status = AcpiUtEvaluateObject (DeviceNode, ObjectName,
|
|
ACPI_BTYPE_INTEGER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Get the returned Integer */
|
|
|
|
*Value = ObjDesc->Integer.Value;
|
|
|
|
/* On exit, we must delete the return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtExecute_STA
|
|
*
|
|
* PARAMETERS: DeviceNode - Node for the device
|
|
* Flags - Where the status flags are returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Executes _STA for selected device and stores results in
|
|
* *Flags.
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtExecute_STA (
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
UINT32 *Flags)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtExecute_STA);
|
|
|
|
|
|
Status = AcpiUtEvaluateObject (DeviceNode, METHOD_NAME__STA,
|
|
ACPI_BTYPE_INTEGER, &ObjDesc);
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
if (AE_NOT_FOUND == Status)
|
|
{
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
|
|
"_STA on %4.4s was not found, assuming device is present\n",
|
|
AcpiUtGetNodeName (DeviceNode)));
|
|
|
|
*Flags = ACPI_UINT32_MAX;
|
|
Status = AE_OK;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Extract the status flags */
|
|
|
|
*Flags = (UINT32) ObjDesc->Integer.Value;
|
|
|
|
/* On exit, we must delete the return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiUtExecutePowerMethods
|
|
*
|
|
* PARAMETERS: DeviceNode - Node for the device
|
|
* MethodNames - Array of power method names
|
|
* MethodCount - Number of methods to execute
|
|
* OutValues - Where the power method values are returned
|
|
*
|
|
* RETURN: Status, OutValues
|
|
*
|
|
* DESCRIPTION: Executes the specified power methods for the device and returns
|
|
* the result(s).
|
|
*
|
|
* NOTE: Internal function, no parameter validation
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiUtExecutePowerMethods (
|
|
ACPI_NAMESPACE_NODE *DeviceNode,
|
|
const char **MethodNames,
|
|
UINT8 MethodCount,
|
|
UINT8 *OutValues)
|
|
{
|
|
ACPI_OPERAND_OBJECT *ObjDesc;
|
|
ACPI_STATUS Status;
|
|
ACPI_STATUS FinalStatus = AE_NOT_FOUND;
|
|
UINT32 i;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE (UtExecutePowerMethods);
|
|
|
|
|
|
for (i = 0; i < MethodCount; i++)
|
|
{
|
|
/*
|
|
* Execute the power method (_SxD or _SxW). The only allowable
|
|
* return type is an Integer.
|
|
*/
|
|
Status = AcpiUtEvaluateObject (DeviceNode,
|
|
ACPI_CAST_PTR (char, MethodNames[i]),
|
|
ACPI_BTYPE_INTEGER, &ObjDesc);
|
|
if (ACPI_SUCCESS (Status))
|
|
{
|
|
OutValues[i] = (UINT8) ObjDesc->Integer.Value;
|
|
|
|
/* Delete the return object */
|
|
|
|
AcpiUtRemoveReference (ObjDesc);
|
|
FinalStatus = AE_OK; /* At least one value is valid */
|
|
continue;
|
|
}
|
|
|
|
OutValues[i] = ACPI_UINT8_MAX;
|
|
if (Status == AE_NOT_FOUND)
|
|
{
|
|
continue; /* Ignore if not found */
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Failed %s on Device %4.4s, %s\n",
|
|
ACPI_CAST_PTR (char, MethodNames[i]),
|
|
AcpiUtGetNodeName (DeviceNode), AcpiFormatException (Status)));
|
|
}
|
|
|
|
return_ACPI_STATUS (FinalStatus);
|
|
}
|