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- // SPDX-License-Identifier: GPL-2.0
- // HD-Audio helpers to sync with DRM driver
- #ifndef __SOUND_HDA_COMPONENT_H
- #define __SOUND_HDA_COMPONENT_H
- #include <drm/drm_audio_component.h>
- #include <sound/hdaudio.h>
- /* virtual idx for controller */
- #define HDA_CODEC_IDX_CONTROLLER HDA_MAX_CODECS
- #ifdef CONFIG_SND_HDA_COMPONENT
- int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
- void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
- bool enable);
- int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
- int dev_id, int rate);
- int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
- bool *audio_enabled, char *buffer, int max_bytes);
- int snd_hdac_acomp_init(struct hdac_bus *bus,
- const struct drm_audio_component_audio_ops *aops,
- int (*match_master)(struct device *, int, void *),
- size_t extra_size);
- int snd_hdac_acomp_exit(struct hdac_bus *bus);
- int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
- const struct drm_audio_component_audio_ops *ops);
- #else
- static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
- {
- return 0;
- }
- static inline void snd_hdac_display_power(struct hdac_bus *bus,
- unsigned int idx, bool enable)
- {
- }
- static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
- hda_nid_t nid, int dev_id, int rate)
- {
- return 0;
- }
- static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
- int dev_id, bool *audio_enabled,
- char *buffer, int max_bytes)
- {
- return -ENODEV;
- }
- static inline int snd_hdac_acomp_init(struct hdac_bus *bus,
- const struct drm_audio_component_audio_ops *aops,
- int (*match_master)(struct device *,
- int, void *),
- size_t extra_size)
- {
- return -ENODEV;
- }
- static inline int snd_hdac_acomp_exit(struct hdac_bus *bus)
- {
- return 0;
- }
- static inline int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
- const struct drm_audio_component_audio_ops *ops)
- {
- return -ENODEV;
- }
- #endif
- #endif /* __SOUND_HDA_COMPONENT_H */
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