FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/acpica/components/hardware/hwgpe.c

     /******************************************************************************
      *
      * Module Name: hwgpe - Low level GPE enable/disable/clear functions
      *
      *****************************************************************************/
     
     /******************************************************************************
      *
      * 1. Copyright Notice
     *
     * Some or all of this work - Copyright (c) 1999 - 2022, 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.
    *
    *****************************************************************************
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * following license:
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    * 1. Redistributions of source code must retain the above copyright
    *    notice, this list of conditions, and the following disclaimer,
    *    without modification.
    * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    *    substantially similar to the "NO WARRANTY" disclaimer below
    *    ("Disclaimer") and any redistribution must be conditioned upon
    *    including a substantially similar Disclaimer requirement for further
    *    binary redistribution.
    * 3. Neither the names of the above-listed copyright holders nor the names
    *    of any contributors may be used to endorse or promote products derived
    *    from this software without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    * Alternatively, you may choose to be licensed under the terms of the
    * GNU General Public License ("GPL") version 2 as published by the Free
    * Software Foundation.
    *
    *****************************************************************************/
   
   #include <contrib/dev/acpica/include/acpi.h>
   #include <contrib/dev/acpica/include/accommon.h>
   #include <contrib/dev/acpica/include/acevents.h>
   
   #define _COMPONENT          ACPI_HARDWARE
           ACPI_MODULE_NAME    ("hwgpe")
   
   #if (!ACPI_REDUCED_HARDWARE) /* Entire module */
   
   /* Local prototypes */
   
   static ACPI_STATUS
   AcpiHwEnableWakeupGpeBlock (
       ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,
       ACPI_GPE_BLOCK_INFO     *GpeBlock,
       void                    *Context);
   
   static ACPI_STATUS
   AcpiHwGpeEnableWrite (
       UINT8                   EnableMask,
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo);
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwGetGpeRegisterBit
    *
    * PARAMETERS:  GpeEventInfo        - Info block for the GPE
    *
    * RETURN:      Register mask with a one in the GPE bit position
    *
    * DESCRIPTION: Compute the register mask for this GPE. One bit is set in the
    *              correct position for the input GPE.
    *
    ******************************************************************************/
   
   UINT32
   AcpiHwGetGpeRegisterBit (
       ACPI_GPE_EVENT_INFO     *GpeEventInfo)
   {
   
       return ((UINT32) 1 <<
           (GpeEventInfo->GpeNumber - GpeEventInfo->RegisterInfo->BaseGpeNumber));
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwLowSetGpe
    *
    * PARAMETERS:  GpeEventInfo        - Info block for the GPE to be disabled
    *              Action              - Enable or disable
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Enable or disable a single GPE in the parent enable register.
    *              The EnableMask field of the involved GPE register must be
    *              updated by the caller if necessary.
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiHwLowSetGpe (
       ACPI_GPE_EVENT_INFO     *GpeEventInfo,
       UINT32                  Action)
   {
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
       ACPI_STATUS             Status = AE_OK;
       UINT64                  EnableMask;
       UINT32                  RegisterBit;
   
   
       ACPI_FUNCTION_ENTRY ();
   
   
       /* Get the info block for the entire GPE register */
   
       GpeRegisterInfo = GpeEventInfo->RegisterInfo;
       if (!GpeRegisterInfo)
       {
           return (AE_NOT_EXIST);
       }
   
       /* Get current value of the enable register that contains this GPE */
   
       Status = AcpiHwRead (&EnableMask, &GpeRegisterInfo->EnableAddress);
       if (ACPI_FAILURE (Status))
       {
           return (Status);
       }
   
       /* Set or clear just the bit that corresponds to this GPE */
   
       RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo);
       switch (Action)
       {
       case ACPI_GPE_CONDITIONAL_ENABLE:
   
           /* Only enable if the corresponding EnableMask bit is set */
   
           if (!(RegisterBit & GpeRegisterInfo->EnableMask))
           {
               return (AE_BAD_PARAMETER);
           }
   
           ACPI_FALLTHROUGH;
   
       case ACPI_GPE_ENABLE:
   
           ACPI_SET_BIT (EnableMask, RegisterBit);
           break;
   
       case ACPI_GPE_DISABLE:
   
           ACPI_CLEAR_BIT (EnableMask, RegisterBit);
           break;
   
       default:
   
           ACPI_ERROR ((AE_INFO, "Invalid GPE Action, %u", Action));
           return (AE_BAD_PARAMETER);
       }
   
       if (!(RegisterBit & GpeRegisterInfo->MaskForRun))
       {
           /* Write the updated enable mask */
   
           Status = AcpiHwWrite (EnableMask, &GpeRegisterInfo->EnableAddress);
       }
       return (Status);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwClearGpe
    *
    * PARAMETERS:  GpeEventInfo        - Info block for the GPE to be cleared
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Clear the status bit for a single GPE.
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiHwClearGpe (
       ACPI_GPE_EVENT_INFO     *GpeEventInfo)
   {
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
       ACPI_STATUS             Status;
       UINT32                  RegisterBit;
   
   
       ACPI_FUNCTION_ENTRY ();
   
       /* Get the info block for the entire GPE register */
   
       GpeRegisterInfo = GpeEventInfo->RegisterInfo;
       if (!GpeRegisterInfo)
       {
           return (AE_NOT_EXIST);
       }
   
       /*
        * Write a one to the appropriate bit in the status register to
        * clear this GPE.
        */
       RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo);
   
       Status = AcpiHwWrite (RegisterBit, &GpeRegisterInfo->StatusAddress);
       return (Status);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwGetGpeStatus
    *
    * PARAMETERS:  GpeEventInfo        - Info block for the GPE to queried
    *              EventStatus         - Where the GPE status is returned
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Return the status of a single GPE.
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiHwGetGpeStatus (
       ACPI_GPE_EVENT_INFO     *GpeEventInfo,
       ACPI_EVENT_STATUS       *EventStatus)
   {
       UINT64                  InByte;
       UINT32                  RegisterBit;
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
       ACPI_EVENT_STATUS       LocalEventStatus = 0;
       ACPI_STATUS             Status;
   
   
       ACPI_FUNCTION_ENTRY ();
   
   
       if (!EventStatus)
       {
           return (AE_BAD_PARAMETER);
       }
   
       /* GPE currently handled? */
   
       if (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) !=
           ACPI_GPE_DISPATCH_NONE)
       {
           LocalEventStatus |= ACPI_EVENT_FLAG_HAS_HANDLER;
       }
   
       /* Get the info block for the entire GPE register */
   
       GpeRegisterInfo = GpeEventInfo->RegisterInfo;
   
       /* Get the register bitmask for this GPE */
   
       RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo);
   
       /* GPE currently enabled? (enabled for runtime?) */
   
       if (RegisterBit & GpeRegisterInfo->EnableForRun)
       {
           LocalEventStatus |= ACPI_EVENT_FLAG_ENABLED;
       }
   
       /* GPE currently masked? (masked for runtime?) */
   
       if (RegisterBit & GpeRegisterInfo->MaskForRun)
       {
           LocalEventStatus |= ACPI_EVENT_FLAG_MASKED;
       }
   
       /* GPE enabled for wake? */
   
       if (RegisterBit & GpeRegisterInfo->EnableForWake)
       {
           LocalEventStatus |= ACPI_EVENT_FLAG_WAKE_ENABLED;
       }
   
       /* GPE currently enabled (enable bit == 1)? */
   
       Status = AcpiHwRead (&InByte, &GpeRegisterInfo->EnableAddress);
       if (ACPI_FAILURE (Status))
       {
           return (Status);
       }
   
       if (RegisterBit & InByte)
       {
           LocalEventStatus |= ACPI_EVENT_FLAG_ENABLE_SET;
       }
   
       /* GPE currently active (status bit == 1)? */
   
       Status = AcpiHwRead (&InByte, &GpeRegisterInfo->StatusAddress);
       if (ACPI_FAILURE (Status))
       {
           return (Status);
       }
   
       if (RegisterBit & InByte)
       {
           LocalEventStatus |= ACPI_EVENT_FLAG_STATUS_SET;
       }
   
       /* Set return value */
   
       (*EventStatus) = LocalEventStatus;
       return (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwGpeEnableWrite
    *
    * PARAMETERS:  EnableMask          - Bit mask to write to the GPE register
    *              GpeRegisterInfo     - Gpe Register info
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Write the enable mask byte to the given GPE register.
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   AcpiHwGpeEnableWrite (
       UINT8                   EnableMask,
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo)
   {
       ACPI_STATUS             Status;
   
   
       GpeRegisterInfo->EnableMask = EnableMask;
   
       Status = AcpiHwWrite (EnableMask, &GpeRegisterInfo->EnableAddress);
       return (Status);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwDisableGpeBlock
    *
    * PARAMETERS:  GpeXruptInfo        - GPE Interrupt info
    *              GpeBlock            - Gpe Block info
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Disable all GPEs within a single GPE block
    *
    ******************************************************************************/
   
   ACPI_STATUS
   AcpiHwDisableGpeBlock (
       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++)
       {
           /* Disable all GPEs in this register */
   
           Status = AcpiHwGpeEnableWrite (0x00, &GpeBlock->RegisterInfo[i]);
           if (ACPI_FAILURE (Status))
           {
               return (Status);
           }
       }
   
       return (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwClearGpeBlock
    *
    * PARAMETERS:  GpeXruptInfo        - GPE Interrupt info
    *              GpeBlock            - Gpe Block info
    *
    * RETURN:      Status
    *
    * DESCRIPTION: Clear status bits for all GPEs within a single GPE block
    *
    ******************************************************************************/
   
   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;
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
       UINT8                   EnableMask;
   
   
       /* NOTE: assumes that all GPEs are currently disabled */
   
       /* Examine each GPE Register within the block */
   
       for (i = 0; i < GpeBlock->RegisterCount; i++)
       {
           GpeRegisterInfo = &GpeBlock->RegisterInfo[i];
           if (!GpeRegisterInfo->EnableForRun)
           {
               continue;
           }
   
           /* Enable all "runtime" GPEs in this register */
   
           EnableMask = GpeRegisterInfo->EnableForRun &
               ~GpeRegisterInfo->MaskForRun;
           Status = AcpiHwGpeEnableWrite (EnableMask, GpeRegisterInfo);
           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;
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
   
   
       /* Examine each GPE Register within the block */
   
       for (i = 0; i < GpeBlock->RegisterCount; i++)
       {
           GpeRegisterInfo = &GpeBlock->RegisterInfo[i];
   
           /*
            * Enable all "wake" GPEs in this register and disable the
            * remaining ones.
            */
           Status = AcpiHwGpeEnableWrite (GpeRegisterInfo->EnableForWake,
               GpeRegisterInfo);
           if (ACPI_FAILURE (Status))
           {
               return (Status);
           }
       }
   
       return (AE_OK);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwGetGpeBlockStatus
    *
    * PARAMETERS:  GpeXruptInfo    - GPE Interrupt info
    *              GpeBlock        - Gpe Block info
    *
    * RETURN:      Success
    *
    * DESCRIPTION: Produce a combined GPE status bits mask for the given block.
    *
    ******************************************************************************/
   
   static ACPI_STATUS
   AcpiHwGetGpeBlockStatus(
       ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,
       ACPI_GPE_BLOCK_INFO     *GpeBlock,
       void *RetPtr)
   {
       ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
       UINT64                  InEnable;
       UINT64                  InStatus;
       ACPI_STATUS             Status;
       UINT8                   *Ret = RetPtr;
       UINT32                  i;
   
   
       /* Examine each GPE Register within the block */
   
       for (i = 0; i < GpeBlock->RegisterCount; i++)
       {
           GpeRegisterInfo = &GpeBlock->RegisterInfo[i];
   
           Status = AcpiHwRead (&InEnable, &GpeRegisterInfo->EnableAddress);
           if (ACPI_FAILURE (Status))
           {
               continue;
           }
   
           Status = AcpiHwRead (&InStatus, &GpeRegisterInfo->StatusAddress);
           if (ACPI_FAILURE (Status))
           {
               continue;
           }
   
           *Ret |= InEnable & InStatus;
       }
   
       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);
       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);
   }
   
   
   /******************************************************************************
    *
    * FUNCTION:    AcpiHwCheckAllGpes
    *
    * PARAMETERS:  None
    *
    * RETURN:      Combined status of all GPEs
    *
    * DESCRIPTION: Check all enabled GPEs in all GPE blocks and return TRUE if the
    *              status bit is set for at least one of them of FALSE otherwise.
    *
    ******************************************************************************/
   
   UINT8
   AcpiHwCheckAllGpes (
       void)
   {
       UINT8                      Ret = 0;
   
   
       ACPI_FUNCTION_TRACE (AcpiHwCheckAllGpes);
   
       (void) AcpiEvWalkGpeList (AcpiHwGetGpeBlockStatus, &Ret);
       return (Ret != 0);
   }
   
   #endif /* !ACPI_REDUCED_HARDWARE */

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