1// SPDX-License-Identifier: GPL-2.0
 2// HD-Audio helpers to sync with DRM driver
 3
 4#ifndef __SOUND_HDA_COMPONENT_H
 5#define __SOUND_HDA_COMPONENT_H
 6
 7#include <drm/drm_audio_component.h>
 8#include <sound/hdaudio.h>
 9
10/* virtual idx for controller */
11#define HDA_CODEC_IDX_CONTROLLER	HDA_MAX_CODECS
12
13#ifdef CONFIG_SND_HDA_COMPONENT
14int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
15void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
16			    bool enable);
17int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
18			     int dev_id, int rate);
19int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
20			   bool *audio_enabled, char *buffer, int max_bytes);
21int snd_hdac_acomp_init(struct hdac_bus *bus,
22			const struct drm_audio_component_audio_ops *aops,
23			int (*match_master)(struct device *, int, void *),
24			size_t extra_size);
25int snd_hdac_acomp_exit(struct hdac_bus *bus);
26int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
27				    const struct drm_audio_component_audio_ops *ops);
28#else
29static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
30{
31	return 0;
32}
33static inline void snd_hdac_display_power(struct hdac_bus *bus,
34					  unsigned int idx, bool enable)
35{
36}
37static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
38					   hda_nid_t nid, int dev_id, int rate)
39{
40	return 0;
41}
42static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
43					 int dev_id, bool *audio_enabled,
44					 char *buffer, int max_bytes)
45{
46	return -ENODEV;
47}
48static inline int snd_hdac_acomp_init(struct hdac_bus *bus,
49				      const struct drm_audio_component_audio_ops *aops,
50				      int (*match_master)(struct device *,
51							  int, void *),
52				      size_t extra_size)
53{
54	return -ENODEV;
55}
56static inline int snd_hdac_acomp_exit(struct hdac_bus *bus)
57{
58	return 0;
59}
60static inline int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
61						  const struct drm_audio_component_audio_ops *ops)
62{
63	return -ENODEV;
64}
65#endif
66
67#endif /* __SOUND_HDA_COMPONENT_H */