| /* Copyright (c) 2018, 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 <dsp/msm-audio-event-notify.h> |
| #include <linux/export.h> |
| |
| static ATOMIC_NOTIFIER_HEAD(msm_aud_evt_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); |