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
14 int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
15 void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
16 bool enable);
17 int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
18 int dev_id, int rate);
19 int 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);
21 int 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);
25 int snd_hdac_acomp_exit(struct hdac_bus *bus);
26 int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
27 const struct drm_audio_component_audio_ops *ops);
28 #else
29 static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
30 {
31 return 0;
32 }
33 static inline void snd_hdac_display_power(struct hdac_bus *bus,
34 unsigned int idx, bool enable)
35 {
36 }
37 static 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 }
42 static 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 }
48 static 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 }
56 static inline int snd_hdac_acomp_exit(struct hdac_bus *bus)
57 {
58 return 0;
59 }
60 static 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
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