91a8910061
git-subtree-dir: qcom/opensource/audio-kernel git-subtree-mainline:99ab089c55git-subtree-split:0ee387dfadChange-Id: repo: https://git.codelinaro.org/clo/la/platform/vendor/qcom/opensource/audio-kernel-ar tag: AUDIO.LA.9.0.r1-07400-lanai.0
75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
|
|
*/
|
|
#include <dsp/msm-audio-event-notify.h>
|
|
#include <linux/export.h>
|
|
|
|
static ATOMIC_NOTIFIER_HEAD(msm_aud_evt_notifier_list);
|
|
static BLOCKING_NOTIFIER_HEAD(msm_aud_evt_blocking_notifier_list);
|
|
|
|
/**
|
|
* msm_aud_evt_register_client - register a client notifier
|
|
* @nb: notifier block to callback on events
|
|
*/
|
|
int msm_aud_evt_register_client(struct notifier_block *nb)
|
|
{
|
|
return atomic_notifier_chain_register(&msm_aud_evt_notifier_list, nb);
|
|
}
|
|
EXPORT_SYMBOL(msm_aud_evt_register_client);
|
|
|
|
/**
|
|
* msm_aud_evt_unregister_client - unregister a client notifier
|
|
* @nb: notifier block to callback on events
|
|
*/
|
|
int msm_aud_evt_unregister_client(struct notifier_block *nb)
|
|
{
|
|
return atomic_notifier_chain_unregister(&msm_aud_evt_notifier_list, nb);
|
|
}
|
|
EXPORT_SYMBOL(msm_aud_evt_unregister_client);
|
|
|
|
/**
|
|
* msm_aud_evt_notifier_call_chain - notify clients of fb_events
|
|
*
|
|
*/
|
|
int msm_aud_evt_notifier_call_chain(unsigned long val, void *v)
|
|
{
|
|
return atomic_notifier_call_chain(&msm_aud_evt_notifier_list, val, v);
|
|
}
|
|
EXPORT_SYMBOL_GPL(msm_aud_evt_notifier_call_chain);
|
|
|
|
/**
|
|
* msm_aud_evt_blocking_register_client - register a client notifier
|
|
* @nb: notifier block to callback on events
|
|
*/
|
|
int msm_aud_evt_blocking_register_client(struct notifier_block *nb)
|
|
{
|
|
return blocking_notifier_chain_register(
|
|
&msm_aud_evt_blocking_notifier_list, nb);
|
|
}
|
|
EXPORT_SYMBOL(msm_aud_evt_blocking_register_client);
|
|
|
|
/**
|
|
* msm_aud_evt_unregister_client - unregister a client notifier
|
|
* @nb: notifier block to callback on events
|
|
*/
|
|
int msm_aud_evt_blocking_unregister_client(struct notifier_block *nb)
|
|
{
|
|
return blocking_notifier_chain_unregister(
|
|
&msm_aud_evt_blocking_notifier_list, nb);
|
|
}
|
|
EXPORT_SYMBOL(msm_aud_evt_blocking_unregister_client);
|
|
|
|
/**
|
|
* msm_aud_evt_notifier_call_chain - notify clients of fb_events
|
|
* @val: event or enum maintained by caller
|
|
* @v: private data pointer
|
|
*
|
|
*/
|
|
int msm_aud_evt_blocking_notifier_call_chain(unsigned long val, void *v)
|
|
{
|
|
return blocking_notifier_call_chain(
|
|
&msm_aud_evt_blocking_notifier_list, val, v);
|
|
}
|
|
EXPORT_SYMBOL_GPL(msm_aud_evt_blocking_notifier_call_chain);
|