hwgpe.c

acpi tools for linux include acpiexec and acpixtract

    if (RegisterBit & InByte)
    {
        LocalEventStatus |= ACPI_EVENT_FLAG_SET;
    }

    /* Set return value */

    (*EventStatus) = LocalEventStatus;


UnlockAndExit:
    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)
{
    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 = AcpiHwLowLevelWrite (8, 0x00,
                    &GpeBlock->RegisterInfo[i].EnableAddress);
        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)
{
    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 = AcpiHwLowLevelWrite (8, 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)
{
    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 = AcpiHwLowLevelWrite (8, 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)
{
    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 = AcpiHwLowLevelWrite (8,
                    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);
    Status = AcpiEvWalkGpeList (AcpiHwClearGpeBlock);
    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);
    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);
    return_ACPI_STATUS (Status);
}