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kernel_samsung_sm7125/drivers/gpu/drm/msm/dp/dp_audio.h

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/*
* Copyright (c) 2016-2018, 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.
*
*/
#ifndef _DP_AUDIO_H_
#define _DP_AUDIO_H_
#include <linux/platform_device.h>
#include "dp_panel.h"
#include "dp_catalog.h"
/**
* struct dp_audio
* @lane_count: number of lanes configured in current session
* @bw_code: link rate's bandwidth code for current session
*/
struct dp_audio {
u32 lane_count;
u32 bw_code;
/**
* on()
*
* Enables the audio by notifying the user module.
*
* @dp_audio: an instance of struct dp_audio.
*
* Returns the error code in case of failure, 0 in success case.
*/
int (*on)(struct dp_audio *dp_audio);
/**
* off()
*
* Disables the audio by notifying the user module.
*
* @dp_audio: an instance of struct dp_audio.
*
* Returns the error code in case of failure, 0 in success case.
*/
int (*off)(struct dp_audio *dp_audio);
};
/**
* dp_audio_get()
*
* Creates and instance of dp audio.
*
* @pdev: caller's platform device instance.
* @panel: an instance of dp_panel module.
* @catalog: an instance of dp_catalog_audio module.
*
* Returns the error code in case of failure, otherwize
* an instance of newly created dp_module.
*/
struct dp_audio *dp_audio_get(struct platform_device *pdev,
struct dp_panel *panel,
struct dp_catalog_audio *catalog);
/**
* dp_audio_put()
*
* Cleans the dp_audio instance.
*
* @dp_audio: an instance of dp_audio.
*/
void dp_audio_put(struct dp_audio *dp_audio);
#endif /* _DP_AUDIO_H_ */