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freebsd/sys/contrib/dev/acpica/nsinit.c

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/******************************************************************************
*
* Module Name: nsinit - namespace initialization
* $Revision: 62 $
*
*****************************************************************************/
/******************************************************************************
*
* 1. Copyright Notice
*
* Some or all of this work - Copyright (c) 1999 - 2004, 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 __NSXFINIT_C__
#include <contrib/dev/acpica/acpi.h>
#include <contrib/dev/acpica/acnamesp.h>
#include <contrib/dev/acpica/acdispat.h>
#include <contrib/dev/acpica/acinterp.h>
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME ("nsinit")
/*******************************************************************************
*
* FUNCTION: AcpiNsInitializeObjects
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Walk the entire namespace and perform any necessary
* initialization on the objects found therein
*
******************************************************************************/
ACPI_STATUS
AcpiNsInitializeObjects (
void)
{
ACPI_STATUS Status;
ACPI_INIT_WALK_INFO Info;
ACPI_FUNCTION_TRACE ("NsInitializeObjects");
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"**** Starting initialization of namespace objects ****\n"));
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"Completing Region/Field/Buffer/Package initialization:"));
/* Set all init info to zero */
ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
/* Walk entire namespace from the supplied root */
Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, AcpiNsInitOneObject,
&Info, NULL);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
AcpiFormatException (Status)));
}
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
Info.OpRegionInit, Info.OpRegionCount,
Info.FieldInit, Info.FieldCount,
Info.BufferInit, Info.BufferCount,
Info.PackageInit, Info.PackageCount, Info.ObjectCount));
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"%hd Control Methods found\n", Info.MethodCount));
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
"%hd Op Regions found\n", Info.OpRegionCount));
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiNsInitializeDevices
*
* PARAMETERS: None
*
* RETURN: ACPI_STATUS
*
* DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
* This means running _INI on all present devices.
*
* Note: We install PCI config space handler on region access,
* not here.
*
******************************************************************************/
ACPI_STATUS
AcpiNsInitializeDevices (
void)
{
ACPI_STATUS Status;
ACPI_DEVICE_WALK_INFO Info;
ACPI_FUNCTION_TRACE ("NsInitializeDevices");
/* Init counters */
Info.DeviceCount = 0;
Info.Num_STA = 0;
Info.Num_INI = 0;
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"Executing all Device _STA and_INI methods:"));
Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Walk namespace for all objects */
Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, TRUE, AcpiNsInitOneDevice, &Info, NULL);
(void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "WalkNamespace failed! %s\n",
AcpiFormatException (Status)));
}
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
Info.DeviceCount, Info.Num_STA, Info.Num_INI));
return_ACPI_STATUS (Status);
}
/*******************************************************************************
*
* FUNCTION: AcpiNsInitOneObject
*
* PARAMETERS: ObjHandle - Node
* Level - Current nesting level
* Context - Points to a init info struct
* ReturnValue - Not used
*
* RETURN: Status
*
* DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
* within the namespace.
*
* Currently, the only objects that require initialization are:
* 1) Methods
* 2) Op Regions
*
******************************************************************************/
ACPI_STATUS
AcpiNsInitOneObject (
ACPI_HANDLE ObjHandle,
UINT32 Level,
void *Context,
void **ReturnValue)
{
ACPI_OBJECT_TYPE Type;
ACPI_STATUS Status;
ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
ACPI_OPERAND_OBJECT *ObjDesc;
ACPI_FUNCTION_NAME ("NsInitOneObject");
Info->ObjectCount++;
/* And even then, we are only interested in a few object types */
Type = AcpiNsGetType (ObjHandle);
ObjDesc = AcpiNsGetAttachedObject (Node);
if (!ObjDesc)
{
return (AE_OK);
}
/* Increment counters for object types we are looking for */
switch (Type)
{
case ACPI_TYPE_REGION:
Info->OpRegionCount++;
break;
case ACPI_TYPE_BUFFER_FIELD:
Info->FieldCount++;
break;
case ACPI_TYPE_BUFFER:
Info->BufferCount++;
break;
case ACPI_TYPE_PACKAGE:
Info->PackageCount++;
break;
default:
/* No init required, just exit now */
return (AE_OK);
}
/*
* If the object is already initialized, nothing else to do
*/
if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
{
return (AE_OK);
}
/*
* Must lock the interpreter before executing AML code
*/
Status = AcpiExEnterInterpreter ();
if (ACPI_FAILURE (Status))
{
return (Status);
}
/*
* Each of these types can contain executable AML code within the
* declaration.
*/
switch (Type)
{
case ACPI_TYPE_REGION:
Info->OpRegionInit++;
Status = AcpiDsGetRegionArguments (ObjDesc);
break;
case ACPI_TYPE_BUFFER_FIELD:
Info->FieldInit++;
Status = AcpiDsGetBufferFieldArguments (ObjDesc);
break;
case ACPI_TYPE_BUFFER:
Info->BufferInit++;
Status = AcpiDsGetBufferArguments (ObjDesc);
break;
case ACPI_TYPE_PACKAGE:
Info->PackageInit++;
Status = AcpiDsGetPackageArguments (ObjDesc);
break;
default:
/* No other types can get here */
break;
}
if (ACPI_FAILURE (Status))
{
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Could not execute arguments for [%4.4s] (%s), %s\n",
AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type),
AcpiFormatException (Status)));
}
/*
* Print a dot for each object unless we are going to print the entire
* pathname
*/
if (!(AcpiDbgLevel & ACPI_LV_INIT_NAMES))
{
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
}
/*
* We ignore errors from above, and always return OK, since we don't want
* to abort the walk on any single error.
*/
AcpiExExitInterpreter ();
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: AcpiNsInitOneDevice
*
* PARAMETERS: ACPI_WALK_CALLBACK
*
* RETURN: ACPI_STATUS
*
* DESCRIPTION: This is called once per device soon after ACPI is enabled
* to initialize each device. It determines if the device is
* present, and if so, calls _INI.
*
******************************************************************************/
ACPI_STATUS
AcpiNsInitOneDevice (
ACPI_HANDLE ObjHandle,
UINT32 NestingLevel,
void *Context,
void **ReturnValue)
{
ACPI_DEVICE_WALK_INFO *Info = (ACPI_DEVICE_WALK_INFO *) Context;
ACPI_PARAMETER_INFO Pinfo;
UINT32 Flags;
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE ("NsInitOneDevice");
Pinfo.Parameters = NULL;
Pinfo.ParameterType = ACPI_PARAM_ARGS;
Pinfo.Node = AcpiNsMapHandleToNode (ObjHandle);
if (!Pinfo.Node)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/*
* We will run _STA/_INI on Devices, Processors and ThermalZones only
*/
if ((Pinfo.Node->Type != ACPI_TYPE_DEVICE) &&
(Pinfo.Node->Type != ACPI_TYPE_PROCESSOR) &&
(Pinfo.Node->Type != ACPI_TYPE_THERMAL))
{
return_ACPI_STATUS (AE_OK);
}
if ((AcpiDbgLevel <= ACPI_LV_ALL_EXCEPTIONS) &&
(!(AcpiDbgLevel & ACPI_LV_INFO)))
{
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
}
Info->DeviceCount++;
/*
* Run _STA to determine if we can run _INI on the device.
*/
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Pinfo.Node, "_STA"));
Status = AcpiUtExecute_STA (Pinfo.Node, &Flags);
if (ACPI_FAILURE (Status))
{
if (Pinfo.Node->Type == ACPI_TYPE_DEVICE)
{
/* Ignore error and move on to next device */
return_ACPI_STATUS (AE_OK);
}
/* _STA is not required for Processor or ThermalZone objects */
}
else
{
Info->Num_STA++;
if (!(Flags & 0x01))
{
/* Don't look at children of a not present device */
return_ACPI_STATUS(AE_CTRL_DEPTH);
}
}
/*
* The device is present. Run _INI.
*/
ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (ACPI_TYPE_METHOD, Pinfo.Node, "_INI"));
Status = AcpiNsEvaluateRelative ("_INI", &Pinfo);
if (ACPI_FAILURE (Status))
{
/* No _INI (AE_NOT_FOUND) means device requires no initialization */
if (Status != AE_NOT_FOUND)
{
/* Ignore error and move on to next device */
#ifdef ACPI_DEBUG_OUTPUT
char *ScopeName = AcpiNsGetExternalPathname (Pinfo.Node);
ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
ScopeName, AcpiFormatException (Status)));
ACPI_MEM_FREE (ScopeName);
#endif
}
Status = AE_OK;
}
else
{
/* Delete any return object (Especially if ImplicitReturn is enabled) */
if (Pinfo.ReturnObject)
{
AcpiUtRemoveReference (Pinfo.ReturnObject);
}
/* Count of successful INIs */
Info->Num_INI++;
}
if (AcpiGbl_InitHandler)
{
/* External initialization handler is present, call it */
Status = AcpiGbl_InitHandler (Pinfo.Node, ACPI_INIT_DEVICE_INI);
}
return_ACPI_STATUS (Status);
}
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