| /* |
| * drivers/amlogic/media/video_sink/video_signal_notify.c |
| * |
| * Copyright (C) 2017 Amlogic, Inc. 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 as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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/amlogic/media/video_sink/video_signal_notify.h> |
| |
| static RAW_NOTIFIER_HEAD(vd_signal_notifier_list); |
| |
| int vd_signal_register_client(struct notifier_block *nb) |
| { |
| return raw_notifier_chain_register(&vd_signal_notifier_list, nb); |
| } |
| EXPORT_SYMBOL(vd_signal_register_client); |
| |
| int vd_signal_unregister_client(struct notifier_block *nb) |
| { |
| return raw_notifier_chain_unregister(&vd_signal_notifier_list, nb); |
| } |
| EXPORT_SYMBOL(vd_signal_unregister_client); |
| |
| int vd_signal_notifier_call_chain(unsigned long val, void *v) |
| { |
| return raw_notifier_call_chain(&vd_signal_notifier_list, val, v); |
| } |
| EXPORT_SYMBOL_GPL(vd_signal_notifier_call_chain); |
