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/*
* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Process Domain Service Notifier API header
*/
#ifndef _SERVICE_NOTIFIER_H
#define _SERVICE_NOTIFIER_H
enum qmi_servreg_notif_service_state_enum_type_v01 {
QMI_SERVREG_NOTIF_SERVICE_STATE_ENUM_TYPE_MIN_VAL_V01 = INT_MIN,
QMI_SERVREG_NOTIF_SERVICE_STATE_ENUM_TYPE_MAX_VAL_V01 = INT_MAX,
SERVREG_NOTIF_SERVICE_STATE_DOWN_V01 = 0x0FFFFFFF,
SERVREG_NOTIF_SERVICE_STATE_UP_V01 = 0x1FFFFFFF,
SERVREG_NOTIF_SERVICE_STATE_UNINIT_V01 = 0x7FFFFFFF,
};
enum pd_subsys_state {
CRASHED,
SHUTDOWN,
UNKNOWN,
};
#if defined(CONFIG_MSM_SERVICE_NOTIFIER)
/* service_notif_register_notifier() - Register a notifier for a service
* On success, it returns back a handle. It takes the following arguments:
* service_path: Individual service identifier path for which a client
* registers for notifications.
* instance_id: Instance id specific to a subsystem.
* current_state: Current state of service returned by the registration
* process.
* notifier block: notifier callback for service events.
*/
void *service_notif_register_notifier(const char *service_path, int instance_id,
struct notifier_block *nb, int *curr_state);
/* service_notif_unregister_notifier() - Unregister a notifier for a service.
* service_notif_handle - The notifier handler that was provided by the
* service_notif_register_notifier function when the
* client registered for notifications.
* nb - The notifier block that was previously used during the registration.
*/
int service_notif_unregister_notifier(void *service_notif_handle,
struct notifier_block *nb);
int service_notif_pd_restart(const char *service_path, int instance_id);
#else
static inline void *service_notif_register_notifier(const char *service_path,
int instance_id, struct notifier_block *nb,
int *curr_state)
{
return ERR_PTR(-ENODEV);
}
static inline int service_notif_unregister_notifier(void *service_notif_handle,
struct notifier_block *nb)
{
return -ENODEV;
}
static inline int service_notif_pd_restart(const char *service_path,
int instance_id)
{
return -ENODEV;
}
#endif /* CONFIG_MSM_SERVICE_NOTIFIER */
#endif
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