drm_audio_component.h

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// SPDX-License-Identifier: MIT
// Copyright © 2014 Intel Corporation
 
#ifndef _DRM_AUDIO_COMPONENT_H_
#define _DRM_AUDIO_COMPONENT_H_
 
#include <linux/completion.h>
#include <linux/types.h>
 
struct drm_audio_component;
struct device;
 
struct drm_audio_component_ops {
    struct module *owner;
    unsigned long (*get_power)(struct device *);
    void (*put_power)(struct device *, unsigned long);
    void (*codec_wake_override)(struct device *, bool enable);
    int (*get_cdclk_freq)(struct device *);
    int (*sync_audio_rate)(struct device *, int port, int pipe, int rate);
    int (*get_eld)(struct device *, int port, int pipe, bool *enabled,
               unsigned char *buf, int max_bytes);
};
 
struct drm_audio_component_audio_ops {
    void *audio_ptr;
    void (*pin_eld_notify)(void *audio_ptr, int port, int pipe);
    int (*pin2port)(void *audio_ptr, int pin);
    int (*master_bind)(struct device *dev, struct drm_audio_component *);
    void (*master_unbind)(struct device *dev, struct drm_audio_component *);
};
 
struct drm_audio_component {
    struct device *dev;
    const struct drm_audio_component_ops *ops;
    const struct drm_audio_component_audio_ops *audio_ops;
    struct completion master_bind_complete;
};
 
#endif /* _DRM_AUDIO_COMPONENT_H_ */