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 *

 * Module Name: hwgpe - Low level GPE enable/disable/clear functions

 *

 *****************************************************************************/

 *

 * 1. Copyright Notice

 *

 * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp.

 * All rights reserved.

 *

 * 2. License

 *

 * 2.1. This is your license from Intel Corp. under its intellectual property

 * rights.  You may have additional license terms from the party that provided

 * you this software, covering your right to use that party's intellectual

 * property rights.

 *

 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a

 * copy of the source code appearing in this file ("Covered Code") an

 * irrevocable, perpetual, worldwide license under Intel's copyrights in the

 * base code distributed originally by Intel ("Original Intel Code") to copy,

 * make derivatives, distribute, use and display any portion of the Covered

 * Code in any form, with the right to sublicense such rights; and

 *

 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent

 * license (with the right to sublicense), under only those claims of Intel

 * patents that are infringed by the Original Intel Code, to make, use, sell,

 * offer to sell, and import the Covered Code and derivative works thereof

 * solely to the minimum extent necessary to exercise the above copyright

 * license, and in no event shall the patent license extend to any additions

 * to or modifications of the Original Intel Code.  No other license or right

 * is granted directly or by implication, estoppel or otherwise;

 *

 * The above copyright and patent license is granted only if the following

 * conditions are met:

 *

 * 3. Conditions

 *

 * 3.1. Redistribution of Source with Rights to Further Distribute Source.

 * Redistribution of source code of any substantial portion of the Covered

 * Code or modification with rights to further distribute source must include

 * the above Copyright Notice, the above License, this list of Conditions,

 * and the following Disclaimer and Export Compliance provision.  In addition,

 * Licensee must cause all Covered Code to which Licensee contributes to

 * contain a file documenting the changes Licensee made to create that Covered

 * Code and the date of any change.  Licensee must include in that file the

 * documentation of any changes made by any predecessor Licensee.  Licensee

 * must include a prominent statement that the modification is derived,

 * directly or indirectly, from Original Intel Code.

 *

 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.

 * Redistribution of source code of any substantial portion of the Covered

 * Code or modification without rights to further distribute source must

 * include the following Disclaimer and Export Compliance provision in the

 * documentation and/or other materials provided with distribution.  In

 * addition, Licensee may not authorize further sublicense of source of any

 * portion of the Covered Code, and must include terms to the effect that the

 * license from Licensee to its licensee is limited to the intellectual

 * property embodied in the software Licensee provides to its licensee, and

 * not to intellectual property embodied in modifications its licensee may

 * make.

 *

 * 3.3. Redistribution of Executable. Redistribution in executable form of any

 * substantial portion of the Covered Code or modification must reproduce the

 * above Copyright Notice, and the following Disclaimer and Export Compliance

 * provision in the documentation and/or other materials provided with the

 * distribution.

 *

 * 3.4. Intel retains all right, title, and interest in and to the Original

 * Intel Code.

 *

 * 3.5. Neither the name Intel nor any other trademark owned or controlled by

 * Intel shall be used in advertising or otherwise to promote the sale, use or

 * other dealings in products derived from or relating to the Covered Code

 * without prior written authorization from Intel.

 *

 * 4. Disclaimer and Export Compliance

 *

 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED

 * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE

 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,

 * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY

 * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY

 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A

 * PARTICULAR PURPOSE.

 *

 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES

 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR

 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,

 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY

 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL

 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS

 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY

 * LIMITED REMEDY.

 *

 * 4.3. Licensee shall not export, either directly or indirectly, any of this

 * software or system incorporating such software without first obtaining any

 * required license or other approval from the U. S. Department of Commerce or

 * any other agency or department of the United States Government.  In the

 * event Licensee exports any such software from the United States or

 * re-exports any such software from a foreign destination, Licensee shall

 * ensure that the distribution and export/re-export of the software is in

 * compliance with all laws, regulations, orders, or other restrictions of the

 * U.S. Export Administration Regulations. Licensee agrees that neither it nor

 * any of its subsidiaries will export/re-export any technical data, process,

 * software, or service, directly or indirectly, to any country for which the

 * United States government or any agency thereof requires an export license,

 * other governmental approval, or letter of assurance, without first obtaining

 * such license, approval or letter.

 *

 *****************************************************************************/

#include "accommon.h"

#include "acevents.h"

        ACPI_MODULE_NAME    ("hwgpe")

AcpiHwEnableWakeupGpeBlock (

    ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,

    ACPI_GPE_BLOCK_INFO     *GpeBlock,

    void                    *Context);

 *

 * FUNCTION:    AcpiHwGetGpeRegisterBit

 *

 * PARAMETERS:  GpeEventInfo        - Info block for the GPE

 *              GpeRegisterInfo     - Info block for the GPE register

 *

 * 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.

 *

 ******************************************************************************/

AcpiHwGetGpeRegisterBit (

    ACPI_GPE_EVENT_INFO     *GpeEventInfo,

    ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo)

{

        (GpeEventInfo->GpeNumber - GpeRegisterInfo->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.

 *

 ******************************************************************************/

AcpiHwLowSetGpe (

    ACPI_GPE_EVENT_INFO     *GpeEventInfo,

    UINT32                  Action)

{

    ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;

    ACPI_STATUS             Status;

    UINT32                  EnableMask;

    UINT32                  RegisterBit;

    if (!GpeRegisterInfo)

    {

        return (AE_NOT_EXIST);

    }

    if (ACPI_FAILURE (Status))

    {

        return (Status);

    }

    switch (Action)

    {

    case ACPI_GPE_CONDITIONAL_ENABLE:

        {

            return (AE_BAD_PARAMETER);

        }

        ACPI_SET_BIT (EnableMask, RegisterBit);

        break;

        ACPI_CLEAR_BIT (EnableMask, RegisterBit);

        break;

        ACPI_ERROR ((AE_INFO, "Invalid GPE Action, %u\n", Action));

        return (AE_BAD_PARAMETER);

    }

    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.

 *

 ******************************************************************************/

AcpiHwClearGpe (

    ACPI_GPE_EVENT_INFO     *GpeEventInfo)

{

    ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;

    ACPI_STATUS             Status;

    UINT32                  RegisterBit;

    if (!GpeRegisterInfo)

    {

        return (AE_NOT_EXIST);

    }

     * Write a one to the appropriate bit in the status register to

     * clear this GPE.

     */

    RegisterBit = AcpiHwGetGpeRegisterBit (GpeEventInfo, GpeRegisterInfo);

                    &GpeRegisterInfo->StatusAddress);

}

 *

 * 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.

 *

 ******************************************************************************/

AcpiHwGetGpeStatus (

    ACPI_GPE_EVENT_INFO     *GpeEventInfo,

    ACPI_EVENT_STATUS       *EventStatus)

{

    UINT32                  InByte;

    UINT32                  RegisterBit;

    ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;

    ACPI_EVENT_STATUS       LocalEventStatus = 0;

    ACPI_STATUS             Status;

    {

        return (AE_BAD_PARAMETER);

    }

    {

        LocalEventStatus |= ACPI_EVENT_FLAG_ENABLED;

    }

    {

        LocalEventStatus |= ACPI_EVENT_FLAG_WAKE_ENABLED;

    }

    if (ACPI_FAILURE (Status))

    {

        return (Status);

    }

    {

        LocalEventStatus |= ACPI_EVENT_FLAG_SET;

    }

    return (AE_OK);

}

 *

 * FUNCTION:    AcpiHwDisableGpeBlock

 *

 * PARAMETERS:  GpeXruptInfo        - GPE Interrupt info

 *              GpeBlock            - Gpe Block info

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Disable all GPEs within a single GPE block

 *

 ******************************************************************************/

AcpiHwDisableGpeBlock (

    ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,

    ACPI_GPE_BLOCK_INFO     *GpeBlock,

    void                    *Context)

{

    UINT32                  i;

    ACPI_STATUS             Status;

    {

        /* Disable all GPEs in this register */

        if (ACPI_FAILURE (Status))

        {

            return (Status);

        }

    }

}

 *

 * 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

 *

 ******************************************************************************/

AcpiHwClearGpeBlock (

    ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,

    ACPI_GPE_BLOCK_INFO     *GpeBlock,

    void                    *Context)

{

    UINT32                  i;

    ACPI_STATUS             Status;

    {

        /* Clear status on all GPEs in this register */

        if (ACPI_FAILURE (Status))

        {

            return (Status);

        }

    }

}

 *

 * 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.

 *

 ******************************************************************************/

AcpiHwEnableRuntimeGpeBlock (

    ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,

    ACPI_GPE_BLOCK_INFO     *GpeBlock,

    void                    *Context)

{

    UINT32                  i;

    ACPI_STATUS             Status;

    {

        if (!GpeBlock->RegisterInfo[i].EnableForRun)

        {

            continue;

        }

                    &GpeBlock->RegisterInfo[i].EnableAddress);

        if (ACPI_FAILURE (Status))

        {

            return (Status);

        }

    }

}

 *

 * 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.

 *

 ******************************************************************************/

AcpiHwEnableWakeupGpeBlock (

    ACPI_GPE_XRUPT_INFO     *GpeXruptInfo,

    ACPI_GPE_BLOCK_INFO     *GpeBlock,

    void                    *Context)

{

    UINT32                  i;

    ACPI_STATUS             Status;

    {

        if (!GpeBlock->RegisterInfo[i].EnableForWake)

        {

            continue;

        }

                    &GpeBlock->RegisterInfo[i].EnableAddress);

        if (ACPI_FAILURE (Status))

        {

            return (Status);

        }

    }

}

 *

 * FUNCTION:    AcpiHwDisableAllGpes

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Disable and clear all GPEs in all GPE blocks

 *

 ******************************************************************************/

AcpiHwDisableAllGpes (

    void)

{

    ACPI_STATUS             Status;

    Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock, NULL);

    return_ACPI_STATUS (Status);

}

 *

 * FUNCTION:    AcpiHwEnableAllRuntimeGpes

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Enable all "runtime" GPEs, in all GPE blocks

 *

 ******************************************************************************/

AcpiHwEnableAllRuntimeGpes (

    void)

{

    ACPI_STATUS             Status;

    return_ACPI_STATUS (Status);

}

 *

 * FUNCTION:    AcpiHwEnableAllWakeupGpes

 *

 * PARAMETERS:  None

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Enable all "wakeup" GPEs, in all GPE blocks

 *

 ******************************************************************************/

AcpiHwEnableAllWakeupGpes (

    void)

{

    ACPI_STATUS             Status;

    return_ACPI_STATUS (Status);

}

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