68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
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/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Process Domain Service Notifier API header
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*/
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#ifndef _SERVICE_NOTIFIER_H
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#define _SERVICE_NOTIFIER_H
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enum qmi_servreg_notif_service_state_enum_type_v01 {
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QMI_SERVREG_NOTIF_SERVICE_STATE_ENUM_TYPE_MIN_VAL_V01 = INT_MIN,
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QMI_SERVREG_NOTIF_SERVICE_STATE_ENUM_TYPE_MAX_VAL_V01 = INT_MAX,
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SERVREG_NOTIF_SERVICE_STATE_DOWN_V01 = 0x0FFFFFFF,
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SERVREG_NOTIF_SERVICE_STATE_UP_V01 = 0x1FFFFFFF,
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SERVREG_NOTIF_SERVICE_STATE_UNINIT_V01 = 0x7FFFFFFF,
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};
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#if defined(CONFIG_MSM_SERVICE_NOTIFIER)
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/* service_notif_register_notifier() - Register a notifier for a service
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* On success, it returns back a handle. It takes the following arguments:
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* service_path: Individual service identifier path for which a client
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* registers for notifications.
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* instance_id: Instance id specific to a subsystem.
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* current_state: Current state of service returned by the registration
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* process.
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* notifier block: notifier callback for service events.
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*/
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void *service_notif_register_notifier(const char *service_path, int instance_id,
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struct notifier_block *nb, int *curr_state);
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/* service_notif_unregister_notifier() - Unregister a notifier for a service.
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* service_notif_handle - The notifier handler that was provided by the
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* service_notif_register_notifier function when the
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* client registered for notifications.
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* nb - The notifier block that was previously used during the registration.
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*/
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int service_notif_unregister_notifier(void *service_notif_handle,
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struct notifier_block *nb);
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#else
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static void *service_notif_register_notifier(const char *service_path,
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int instance_id, struct notifier_block *nb,
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int *curr_state)
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{
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return -ENODEV;
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}
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static int service_notif_unregister_notifier(void *service_notif_handle,
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struct notifier_block *nb)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_MSM_SERVICE_NOTIFIER */
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#endif
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