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 */
68