forked from KolibriOS/kolibrios
595 lines
18 KiB
C
595 lines
18 KiB
C
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/******************************************************************************
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*
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* Module Name: hwgpe - Low level GPE enable/disable/clear functions
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*
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*****************************************************************************/
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/******************************************************************************
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*
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* 1. Copyright Notice
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*
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* Some or all of this work - Copyright (c) 1999 - 2010, Intel Corp.
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* All rights reserved.
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*
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* 2. License
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*
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* 2.1. This is your license from Intel Corp. under its intellectual property
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* rights. You may have additional license terms from the party that provided
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* you this software, covering your right to use that party's intellectual
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* property rights.
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*
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* 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
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* copy of the source code appearing in this file ("Covered Code") an
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* irrevocable, perpetual, worldwide license under Intel's copyrights in the
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* base code distributed originally by Intel ("Original Intel Code") to copy,
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* make derivatives, distribute, use and display any portion of the Covered
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* Code in any form, with the right to sublicense such rights; and
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*
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* 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
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* license (with the right to sublicense), under only those claims of Intel
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* patents that are infringed by the Original Intel Code, to make, use, sell,
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* offer to sell, and import the Covered Code and derivative works thereof
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* solely to the minimum extent necessary to exercise the above copyright
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* license, and in no event shall the patent license extend to any additions
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* to or modifications of the Original Intel Code. No other license or right
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* is granted directly or by implication, estoppel or otherwise;
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*
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* The above copyright and patent license is granted only if the following
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* conditions are met:
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*
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* 3. Conditions
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*
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* 3.1. Redistribution of Source with Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification with rights to further distribute source must include
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* the above Copyright Notice, the above License, this list of Conditions,
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* and the following Disclaimer and Export Compliance provision. In addition,
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* Licensee must cause all Covered Code to which Licensee contributes to
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* contain a file documenting the changes Licensee made to create that Covered
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* Code and the date of any change. Licensee must include in that file the
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* documentation of any changes made by any predecessor Licensee. Licensee
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* must include a prominent statement that the modification is derived,
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* directly or indirectly, from Original Intel Code.
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*
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* 3.2. Redistribution of Source with no Rights to Further Distribute Source.
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* Redistribution of source code of any substantial portion of the Covered
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* Code or modification without rights to further distribute source must
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* include the following Disclaimer and Export Compliance provision in the
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* documentation and/or other materials provided with distribution. In
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* addition, Licensee may not authorize further sublicense of source of any
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* portion of the Covered Code, and must include terms to the effect that the
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* license from Licensee to its licensee is limited to the intellectual
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* property embodied in the software Licensee provides to its licensee, and
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* not to intellectual property embodied in modifications its licensee may
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* make.
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*
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* 3.3. Redistribution of Executable. Redistribution in executable form of any
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* substantial portion of the Covered Code or modification must reproduce the
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* above Copyright Notice, and the following Disclaimer and Export Compliance
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* provision in the documentation and/or other materials provided with the
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* distribution.
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*
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* 3.4. Intel retains all right, title, and interest in and to the Original
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* Intel Code.
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*
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* 3.5. Neither the name Intel nor any other trademark owned or controlled by
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* Intel shall be used in advertising or otherwise to promote the sale, use or
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* other dealings in products derived from or relating to the Covered Code
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* without prior written authorization from Intel.
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*
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* 4. Disclaimer and Export Compliance
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*
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* 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
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* HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
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* IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
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* INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
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* UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
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* IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
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* PARTICULAR PURPOSE.
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*
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* 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
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* OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
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* COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
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* SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
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* CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
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* HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
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* SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
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* LIMITED REMEDY.
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*
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* 4.3. Licensee shall not export, either directly or indirectly, any of this
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* software or system incorporating such software without first obtaining any
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* required license or other approval from the U. S. Department of Commerce or
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* any other agency or department of the United States Government. In the
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* event Licensee exports any such software from the United States or
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* re-exports any such software from a foreign destination, Licensee shall
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* ensure that the distribution and export/re-export of the software is in
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* compliance with all laws, regulations, orders, or other restrictions of the
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* U.S. Export Administration Regulations. Licensee agrees that neither it nor
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* any of its subsidiaries will export/re-export any technical data, process,
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* software, or service, directly or indirectly, to any country for which the
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* United States government or any agency thereof requires an export license,
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* other governmental approval, or letter of assurance, without first obtaining
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* such license, approval or letter.
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*
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*****************************************************************************/
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#include "acpi.h"
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#include "accommon.h"
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#include "acevents.h"
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#define _COMPONENT ACPI_HARDWARE
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ACPI_MODULE_NAME ("hwgpe")
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/* Local prototypes */
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static ACPI_STATUS
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AcpiHwEnableWakeupGpeBlock (
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ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
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ACPI_GPE_BLOCK_INFO *GpeBlock,
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void *Context);
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/******************************************************************************
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*
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* FUNCTION: AcpiHwLowDisableGpe
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*
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* PARAMETERS: GpeEventInfo - Info block for the GPE to be disabled
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*
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* RETURN: Status
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*
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* DESCRIPTION: Disable a single GPE in the enable register.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiHwLowDisableGpe (
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ACPI_GPE_EVENT_INFO *GpeEventInfo)
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{
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ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
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ACPI_STATUS Status;
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UINT32 EnableMask;
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/* Get the info block for the entire GPE register */
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GpeRegisterInfo = GpeEventInfo->RegisterInfo;
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if (!GpeRegisterInfo)
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{
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return (AE_NOT_EXIST);
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}
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/* Get current value of the enable register that contains this GPE */
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Status = AcpiHwRead (&EnableMask, &GpeRegisterInfo->EnableAddress);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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/* Clear just the bit that corresponds to this GPE */
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ACPI_CLEAR_BIT (EnableMask, ((UINT32) 1 <<
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(GpeEventInfo->GpeNumber - GpeRegisterInfo->BaseGpeNumber)));
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/* Write the updated enable mask */
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Status = AcpiHwWrite (EnableMask, &GpeRegisterInfo->EnableAddress);
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return (Status);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiHwWriteGpeEnableReg
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*
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* PARAMETERS: GpeEventInfo - Info block for the GPE to be enabled
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*
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* RETURN: Status
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*
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* DESCRIPTION: Write a GPE enable register. Note: The bit for this GPE must
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* already be cleared or set in the parent register
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* EnableForRun mask.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiHwWriteGpeEnableReg (
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ACPI_GPE_EVENT_INFO *GpeEventInfo)
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{
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ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
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ACPI_STATUS Status;
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ACPI_FUNCTION_ENTRY ();
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/* Get the info block for the entire GPE register */
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GpeRegisterInfo = GpeEventInfo->RegisterInfo;
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if (!GpeRegisterInfo)
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{
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return (AE_NOT_EXIST);
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}
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/* Write the entire GPE (runtime) enable register */
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Status = AcpiHwWrite (GpeRegisterInfo->EnableForRun,
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&GpeRegisterInfo->EnableAddress);
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return (Status);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiHwClearGpe
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*
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* PARAMETERS: GpeEventInfo - Info block for the GPE to be cleared
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*
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* RETURN: Status
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*
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* DESCRIPTION: Clear the status bit for a single GPE.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiHwClearGpe (
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ACPI_GPE_EVENT_INFO *GpeEventInfo)
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{
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ACPI_STATUS Status;
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UINT8 RegisterBit;
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ACPI_FUNCTION_ENTRY ();
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RegisterBit = (UINT8) (1 <<
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(GpeEventInfo->GpeNumber - GpeEventInfo->RegisterInfo->BaseGpeNumber));
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/*
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* Write a one to the appropriate bit in the status register to
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* clear this GPE.
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*/
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Status = AcpiHwWrite (RegisterBit,
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&GpeEventInfo->RegisterInfo->StatusAddress);
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return (Status);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiHwGetGpeStatus
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*
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* PARAMETERS: GpeEventInfo - Info block for the GPE to queried
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* EventStatus - Where the GPE status is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Return the status of a single GPE.
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiHwGetGpeStatus (
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ACPI_GPE_EVENT_INFO *GpeEventInfo,
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ACPI_EVENT_STATUS *EventStatus)
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{
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UINT32 InByte;
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UINT8 RegisterBit;
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ACPI_GPE_REGISTER_INFO *GpeRegisterInfo;
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ACPI_STATUS Status;
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ACPI_EVENT_STATUS LocalEventStatus = 0;
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ACPI_FUNCTION_ENTRY ();
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if (!EventStatus)
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{
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return (AE_BAD_PARAMETER);
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}
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/* Get the info block for the entire GPE register */
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GpeRegisterInfo = GpeEventInfo->RegisterInfo;
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/* Get the register bitmask for this GPE */
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RegisterBit = (UINT8) (1 <<
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(GpeEventInfo->GpeNumber - GpeEventInfo->RegisterInfo->BaseGpeNumber));
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/* GPE currently enabled? (enabled for runtime?) */
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if (RegisterBit & GpeRegisterInfo->EnableForRun)
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{
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LocalEventStatus |= ACPI_EVENT_FLAG_ENABLED;
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}
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/* GPE enabled for wake? */
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if (RegisterBit & GpeRegisterInfo->EnableForWake)
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{
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LocalEventStatus |= ACPI_EVENT_FLAG_WAKE_ENABLED;
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}
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/* GPE currently active (status bit == 1)? */
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Status = AcpiHwRead (&InByte, &GpeRegisterInfo->StatusAddress);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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if (RegisterBit & InByte)
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{
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LocalEventStatus |= ACPI_EVENT_FLAG_SET;
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}
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/* Set return value */
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(*EventStatus) = LocalEventStatus;
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return (AE_OK);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiHwDisableGpeBlock
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*
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* PARAMETERS: GpeXruptInfo - GPE Interrupt info
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* GpeBlock - Gpe Block info
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*
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* RETURN: Status
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*
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* DESCRIPTION: Disable all GPEs within a single GPE block
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*
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******************************************************************************/
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ACPI_STATUS
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AcpiHwDisableGpeBlock (
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ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
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ACPI_GPE_BLOCK_INFO *GpeBlock,
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void *Context)
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{
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UINT32 i;
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ACPI_STATUS Status;
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/* Examine each GPE Register within the block */
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for (i = 0; i < GpeBlock->RegisterCount; i++)
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{
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/* Disable all GPEs in this register */
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Status = AcpiHwWrite (0x00, &GpeBlock->RegisterInfo[i].EnableAddress);
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if (ACPI_FAILURE (Status))
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{
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return (Status);
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}
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}
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return (AE_OK);
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}
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/******************************************************************************
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*
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* FUNCTION: AcpiHwClearGpeBlock
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*
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* PARAMETERS: GpeXruptInfo - GPE Interrupt info
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* GpeBlock - Gpe Block info
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*
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* RETURN: Status
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*
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* DESCRIPTION: Clear status bits for all GPEs within a single GPE block
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*
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******************************************************************************/
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ACPI_STATUS
|
||
|
|
AcpiHwClearGpeBlock (
|
||
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
||
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
||
|
|
void *Context)
|
||
|
|
{
|
||
|
|
UINT32 i;
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
/* Examine each GPE Register within the block */
|
||
|
|
|
||
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
||
|
|
{
|
||
|
|
/* Clear status on all GPEs in this register */
|
||
|
|
|
||
|
|
Status = AcpiHwWrite (0xFF, &GpeBlock->RegisterInfo[i].StatusAddress);
|
||
|
|
if (ACPI_FAILURE (Status))
|
||
|
|
{
|
||
|
|
return (Status);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (AE_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiHwEnableRuntimeGpeBlock
|
||
|
|
*
|
||
|
|
* PARAMETERS: GpeXruptInfo - GPE Interrupt info
|
||
|
|
* GpeBlock - Gpe Block info
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Enable all "runtime" GPEs within a single GPE block. Includes
|
||
|
|
* combination wake/run GPEs.
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiHwEnableRuntimeGpeBlock (
|
||
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
||
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
||
|
|
void *Context)
|
||
|
|
{
|
||
|
|
UINT32 i;
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
/* NOTE: assumes that all GPEs are currently disabled */
|
||
|
|
|
||
|
|
/* Examine each GPE Register within the block */
|
||
|
|
|
||
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
||
|
|
{
|
||
|
|
if (!GpeBlock->RegisterInfo[i].EnableForRun)
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Enable all "runtime" GPEs in this register */
|
||
|
|
|
||
|
|
Status = AcpiHwWrite (GpeBlock->RegisterInfo[i].EnableForRun,
|
||
|
|
&GpeBlock->RegisterInfo[i].EnableAddress);
|
||
|
|
if (ACPI_FAILURE (Status))
|
||
|
|
{
|
||
|
|
return (Status);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (AE_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiHwEnableWakeupGpeBlock
|
||
|
|
*
|
||
|
|
* PARAMETERS: GpeXruptInfo - GPE Interrupt info
|
||
|
|
* GpeBlock - Gpe Block info
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Enable all "wake" GPEs within a single GPE block. Includes
|
||
|
|
* combination wake/run GPEs.
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
static ACPI_STATUS
|
||
|
|
AcpiHwEnableWakeupGpeBlock (
|
||
|
|
ACPI_GPE_XRUPT_INFO *GpeXruptInfo,
|
||
|
|
ACPI_GPE_BLOCK_INFO *GpeBlock,
|
||
|
|
void *Context)
|
||
|
|
{
|
||
|
|
UINT32 i;
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
/* Examine each GPE Register within the block */
|
||
|
|
|
||
|
|
for (i = 0; i < GpeBlock->RegisterCount; i++)
|
||
|
|
{
|
||
|
|
if (!GpeBlock->RegisterInfo[i].EnableForWake)
|
||
|
|
{
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Enable all "wake" GPEs in this register */
|
||
|
|
|
||
|
|
Status = AcpiHwWrite (GpeBlock->RegisterInfo[i].EnableForWake,
|
||
|
|
&GpeBlock->RegisterInfo[i].EnableAddress);
|
||
|
|
if (ACPI_FAILURE (Status))
|
||
|
|
{
|
||
|
|
return (Status);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return (AE_OK);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiHwDisableAllGpes
|
||
|
|
*
|
||
|
|
* PARAMETERS: None
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Disable and clear all GPEs in all GPE blocks
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiHwDisableAllGpes (
|
||
|
|
void)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (HwDisableAllGpes);
|
||
|
|
|
||
|
|
|
||
|
|
Status = AcpiEvWalkGpeList (AcpiHwDisableGpeBlock, NULL);
|
||
|
|
Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock, NULL);
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiHwEnableAllRuntimeGpes
|
||
|
|
*
|
||
|
|
* PARAMETERS: None
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiHwEnableAllRuntimeGpes (
|
||
|
|
void)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (HwEnableAllRuntimeGpes);
|
||
|
|
|
||
|
|
|
||
|
|
Status = AcpiEvWalkGpeList (AcpiHwEnableRuntimeGpeBlock, NULL);
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: AcpiHwEnableAllWakeupGpes
|
||
|
|
*
|
||
|
|
* PARAMETERS: None
|
||
|
|
*
|
||
|
|
* RETURN: Status
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
ACPI_STATUS
|
||
|
|
AcpiHwEnableAllWakeupGpes (
|
||
|
|
void)
|
||
|
|
{
|
||
|
|
ACPI_STATUS Status;
|
||
|
|
|
||
|
|
|
||
|
|
ACPI_FUNCTION_TRACE (HwEnableAllWakeupGpes);
|
||
|
|
|
||
|
|
|
||
|
|
Status = AcpiEvWalkGpeList (AcpiHwEnableWakeupGpeBlock, NULL);
|
||
|
|
return_ACPI_STATUS (Status);
|
||
|
|
}
|
||
|
|
|