926328c406
is Intel's reference implementation of the core operating-system ACPI support. (This import is on the vendor branch.)
547 lines
18 KiB
C
547 lines
18 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: dsfield - Dispatcher field routines
|
|
* $Revision: 29 $
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/******************************************************************************
|
|
*
|
|
* 1. Copyright Notice
|
|
*
|
|
* Some or all of this work - Copyright (c) 1999, 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 __DSFIELD_C__
|
|
|
|
#include "acpi.h"
|
|
#include "amlcode.h"
|
|
#include "acdispat.h"
|
|
#include "acinterp.h"
|
|
#include "acnamesp.h"
|
|
|
|
|
|
#define _COMPONENT DISPATCHER
|
|
MODULE_NAME ("dsfield")
|
|
|
|
|
|
/*
|
|
* Field flags: Bits 00 - 03 : AccessType (AnyAcc, ByteAcc, etc.)
|
|
* 04 : LockRule (1 == Lock)
|
|
* 05 - 06 : UpdateRule
|
|
*/
|
|
|
|
#define FIELD_ACCESS_TYPE_MASK 0x0F
|
|
#define FIELD_LOCK_RULE_MASK 0x10
|
|
#define FIELD_UPDATE_RULE_MASK 0x60
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsCreateField
|
|
*
|
|
* PARAMETERS: Op - Op containing the Field definition and args
|
|
* RegionNode - Object for the containing Operation Region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new field in the specified operation region
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsCreateField (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_NAMESPACE_NODE *RegionNode,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_AML_ERROR;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
UINT8 FieldFlags;
|
|
UINT8 AccessAttribute = 0;
|
|
UINT32 FieldBitPosition = 0;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("DsCreateField", Op);
|
|
|
|
|
|
/* First arg is the name of the parent OpRegion */
|
|
|
|
Arg = Op->Value.Arg;
|
|
if (!RegionNode)
|
|
{
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Value.Name,
|
|
ACPI_TYPE_REGION, IMODE_EXECUTE,
|
|
NS_SEARCH_PARENT, WalkState,
|
|
&RegionNode);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
/* Second arg is the field flags */
|
|
|
|
Arg = Arg->Next;
|
|
FieldFlags = (UINT8) Arg->Value.Integer;
|
|
|
|
/* Each remaining arg is a Named Field */
|
|
|
|
Arg = Arg->Next;
|
|
while (Arg)
|
|
{
|
|
switch (Arg->Opcode)
|
|
{
|
|
case AML_RESERVEDFIELD_OP:
|
|
|
|
FieldBitPosition += Arg->Value.Size;
|
|
break;
|
|
|
|
|
|
case AML_ACCESSFIELD_OP:
|
|
|
|
/*
|
|
* Get a new AccessType and AccessAttribute for all
|
|
* entries (until end or another AccessAs keyword)
|
|
*/
|
|
|
|
AccessAttribute = (UINT8) Arg->Value.Integer;
|
|
FieldFlags = (UINT8)
|
|
((FieldFlags & FIELD_ACCESS_TYPE_MASK) ||
|
|
((UINT8) (Arg->Value.Integer >> 8)));
|
|
break;
|
|
|
|
|
|
case AML_NAMEDFIELD_OP:
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo,
|
|
(NATIVE_CHAR *) &((ACPI_PARSE2_OBJECT *)Arg)->Name,
|
|
INTERNAL_TYPE_DEF_FIELD,
|
|
IMODE_LOAD_PASS1,
|
|
NS_NO_UPSEARCH | NS_DONT_OPEN_SCOPE,
|
|
NULL, &Node);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Initialize an object for the new Node that is on
|
|
* the object stack
|
|
*/
|
|
|
|
Status = AcpiAmlPrepDefFieldValue (Node, RegionNode, FieldFlags,
|
|
AccessAttribute, FieldBitPosition, Arg->Value.Size);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Keep track of bit position for *next* field */
|
|
|
|
FieldBitPosition += Arg->Value.Size;
|
|
break;
|
|
}
|
|
|
|
Arg = Arg->Next;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsCreateBankField
|
|
*
|
|
* PARAMETERS: Op - Op containing the Field definition and args
|
|
* RegionNode - Object for the containing Operation Region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new bank field in the specified operation region
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsCreateBankField (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_NAMESPACE_NODE *RegionNode,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status = AE_AML_ERROR;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
ACPI_NAMESPACE_NODE *RegisterNode;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
UINT32 BankValue;
|
|
UINT8 FieldFlags;
|
|
UINT8 AccessAttribute = 0;
|
|
UINT32 FieldBitPosition = 0;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("DsCreateBankField", Op);
|
|
|
|
|
|
/* First arg is the name of the parent OpRegion */
|
|
|
|
Arg = Op->Value.Arg;
|
|
if (!RegionNode)
|
|
{
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Value.Name,
|
|
ACPI_TYPE_REGION, IMODE_EXECUTE,
|
|
NS_SEARCH_PARENT, WalkState,
|
|
&RegionNode);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
}
|
|
|
|
/* Second arg is the Bank Register */
|
|
|
|
Arg = Arg->Next;
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Value.String,
|
|
INTERNAL_TYPE_BANK_FIELD_DEFN,
|
|
IMODE_LOAD_PASS1,
|
|
NS_NO_UPSEARCH | NS_DONT_OPEN_SCOPE,
|
|
NULL, &RegisterNode);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Third arg is the BankValue */
|
|
|
|
Arg = Arg->Next;
|
|
BankValue = Arg->Value.Integer;
|
|
|
|
|
|
/* Next arg is the field flags */
|
|
|
|
Arg = Arg->Next;
|
|
FieldFlags = (UINT8) Arg->Value.Integer;
|
|
|
|
/* Each remaining arg is a Named Field */
|
|
|
|
Arg = Arg->Next;
|
|
while (Arg)
|
|
{
|
|
switch (Arg->Opcode)
|
|
{
|
|
case AML_RESERVEDFIELD_OP:
|
|
|
|
FieldBitPosition += Arg->Value.Size;
|
|
break;
|
|
|
|
|
|
case AML_ACCESSFIELD_OP:
|
|
|
|
/*
|
|
* Get a new AccessType and AccessAttribute for
|
|
* all entries (until end or another AccessAs keyword)
|
|
*/
|
|
|
|
AccessAttribute = (UINT8) Arg->Value.Integer;
|
|
FieldFlags = (UINT8)
|
|
((FieldFlags & FIELD_ACCESS_TYPE_MASK) ||
|
|
((UINT8) (Arg->Value.Integer >> 8)));
|
|
break;
|
|
|
|
|
|
case AML_NAMEDFIELD_OP:
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo,
|
|
(NATIVE_CHAR *) &((ACPI_PARSE2_OBJECT *)Arg)->Name,
|
|
INTERNAL_TYPE_DEF_FIELD,
|
|
IMODE_LOAD_PASS1,
|
|
NS_NO_UPSEARCH | NS_DONT_OPEN_SCOPE,
|
|
NULL, &Node);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Initialize an object for the new Node that is on
|
|
* the object stack
|
|
*/
|
|
|
|
Status = AcpiAmlPrepBankFieldValue (Node, RegionNode, RegisterNode,
|
|
BankValue, FieldFlags, AccessAttribute,
|
|
FieldBitPosition, Arg->Value.Size);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Keep track of bit position for the *next* field */
|
|
|
|
FieldBitPosition += Arg->Value.Size;
|
|
break;
|
|
|
|
}
|
|
|
|
Arg = Arg->Next;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: AcpiDsCreateIndexField
|
|
*
|
|
* PARAMETERS: Op - Op containing the Field definition and args
|
|
* RegionNode - Object for the containing Operation Region
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Create a new index field in the specified operation region
|
|
*
|
|
******************************************************************************/
|
|
|
|
ACPI_STATUS
|
|
AcpiDsCreateIndexField (
|
|
ACPI_PARSE_OBJECT *Op,
|
|
ACPI_HANDLE RegionNode,
|
|
ACPI_WALK_STATE *WalkState)
|
|
{
|
|
ACPI_STATUS Status;
|
|
ACPI_PARSE_OBJECT *Arg;
|
|
ACPI_NAMESPACE_NODE *Node;
|
|
ACPI_NAMESPACE_NODE *IndexRegisterNode;
|
|
ACPI_NAMESPACE_NODE *DataRegisterNode;
|
|
UINT8 FieldFlags;
|
|
UINT8 AccessAttribute = 0;
|
|
UINT32 FieldBitPosition = 0;
|
|
|
|
|
|
FUNCTION_TRACE_PTR ("DsCreateIndexField", Op);
|
|
|
|
|
|
Arg = Op->Value.Arg;
|
|
|
|
/* First arg is the name of the Index register */
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Value.String,
|
|
ACPI_TYPE_ANY, IMODE_LOAD_PASS1,
|
|
NS_NO_UPSEARCH | NS_DONT_OPEN_SCOPE,
|
|
NULL, &IndexRegisterNode);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Second arg is the data register */
|
|
|
|
Arg = Arg->Next;
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo, Arg->Value.String,
|
|
INTERNAL_TYPE_INDEX_FIELD_DEFN,
|
|
IMODE_LOAD_PASS1,
|
|
NS_NO_UPSEARCH | NS_DONT_OPEN_SCOPE,
|
|
NULL, &DataRegisterNode);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|
|
/* Next arg is the field flags */
|
|
|
|
Arg = Arg->Next;
|
|
FieldFlags = (UINT8) Arg->Value.Integer;
|
|
|
|
|
|
/* Each remaining arg is a Named Field */
|
|
|
|
Arg = Arg->Next;
|
|
while (Arg)
|
|
{
|
|
switch (Arg->Opcode)
|
|
{
|
|
case AML_RESERVEDFIELD_OP:
|
|
|
|
FieldBitPosition += Arg->Value.Size;
|
|
break;
|
|
|
|
|
|
case AML_ACCESSFIELD_OP:
|
|
|
|
/*
|
|
* Get a new AccessType and AccessAttribute for all
|
|
* entries (until end or another AccessAs keyword)
|
|
*/
|
|
|
|
AccessAttribute = (UINT8) Arg->Value.Integer;
|
|
FieldFlags = (UINT8)
|
|
((FieldFlags & FIELD_ACCESS_TYPE_MASK) ||
|
|
((UINT8) (Arg->Value.Integer >> 8)));
|
|
break;
|
|
|
|
|
|
case AML_NAMEDFIELD_OP:
|
|
|
|
Status = AcpiNsLookup (WalkState->ScopeInfo,
|
|
(NATIVE_CHAR *) &((ACPI_PARSE2_OBJECT *)Arg)->Name,
|
|
INTERNAL_TYPE_INDEX_FIELD,
|
|
IMODE_LOAD_PASS1,
|
|
NS_NO_UPSEARCH | NS_DONT_OPEN_SCOPE,
|
|
NULL, &Node);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/*
|
|
* Initialize an object for the new Node that is on
|
|
* the object stack
|
|
*/
|
|
|
|
Status = AcpiAmlPrepIndexFieldValue (Node, IndexRegisterNode, DataRegisterNode,
|
|
FieldFlags, AccessAttribute,
|
|
FieldBitPosition, Arg->Value.Size);
|
|
|
|
if (ACPI_FAILURE (Status))
|
|
{
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
/* Keep track of bit position for the *next* field */
|
|
|
|
FieldBitPosition += Arg->Value.Size;
|
|
break;
|
|
|
|
|
|
default:
|
|
|
|
DEBUG_PRINT (ACPI_ERROR,
|
|
("DsEnterIndexField: Invalid opcode in field list: %X\n",
|
|
Arg->Opcode));
|
|
Status = AE_AML_ERROR;
|
|
break;
|
|
}
|
|
|
|
Arg = Arg->Next;
|
|
}
|
|
|
|
return_ACPI_STATUS (Status);
|
|
}
|
|
|
|
|