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