You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
kernel_samsung_sm7125/drivers/soc/qcom/sideband_notify.c

50 lines
1.6 KiB

/*
* Copyright (c) 2020, 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.
*
*/
#include <linux/notifier.h>
#include <soc/qcom/sb_notification.h>
static BLOCKING_NOTIFIER_HEAD(sb_notifier_list);
/**
* sb_register_evt_listener - registers a notifier callback
* @nb: pointer to the notifier block for the callback events
*/
int sb_register_evt_listener(struct notifier_block *nb)
{
return blocking_notifier_chain_register(&sb_notifier_list, nb);
}
EXPORT_SYMBOL(sb_register_evt_listener);
/**
* sb_unregister_evt_listener - un-registers a notifier callback
* registered previously.
* @nb: pointer to the notifier block for the callback events
*/
int sb_unregister_evt_listener(struct notifier_block *nb)
{
return blocking_notifier_chain_unregister(&sb_notifier_list, nb);
}
EXPORT_SYMBOL(sb_unregister_evt_listener);
/**
* sb_notifier_call_chain - send events to all registered listeners
* as received from publishers.
* @nb: pointer to the notifier block for the callback events
*/
int sb_notifier_call_chain(unsigned long val, void *v)
{
return blocking_notifier_call_chain(&sb_notifier_list, val, v);
}
EXPORT_SYMBOL(sb_notifier_call_chain);