linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

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

 *

 * Module Name: evmisc - Miscellaneous event manager support functions

 *

 * Copyright (C) 2000 - 2019, Intel Corp.

 *

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

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "acevents.h"

#include "acnamesp.h"

​

#define _COMPONENT          ACPI_EVENTS

ACPI_MODULE_NAME("evmisc")

​

/* Local prototypes */

static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context);

​

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

 *

 * FUNCTION:    acpi_ev_is_notify_object

 *

 * PARAMETERS:  node            - Node to check

 *

 * RETURN:      TRUE if notifies allowed on this object

 *

 * DESCRIPTION: Check type of node for a object that supports notifies.

 *

 *              TBD: This could be replaced by a flag bit in the node.

 *

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

​

u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node)

{

​

    switch (node->type) {

    case ACPI_TYPE_DEVICE:

    case ACPI_TYPE_PROCESSOR:

    case ACPI_TYPE_THERMAL:

        /*

         * These are the ONLY objects that can receive ACPI notifications

         */

        return (TRUE);

​

    default:

​

        return (FALSE);

    }

}

​

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

 *

 * FUNCTION:    acpi_ev_queue_notify_request

 *

 * PARAMETERS:  node            - NS node for the notified object

 *              notify_value    - Value from the Notify() request

 *

 * RETURN:      Status

 *

 * DESCRIPTION: Dispatch a device notification event to a previously

 *              installed handler.