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 9 #ifdef CONFIG_SND_HDA_COMPONENT 10 int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable); 11 int snd_hdac_display_power(struct hdac_bus *bus, bool enable); 12 int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, 13 int dev_id, int rate); 14 int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id, 15 bool *audio_enabled, char *buffer, int max_bytes); 16 int snd_hdac_acomp_init(struct hdac_bus *bus, 17 const struct drm_audio_component_audio_ops *aops, 18 int (*match_master)(struct device *, void *), 19 size_t extra_size); 20 int snd_hdac_acomp_exit(struct hdac_bus *bus); 21 int snd_hdac_acomp_register_notifier(struct hdac_bus *bus, 22 const struct drm_audio_component_audio_ops *ops); 23 #else 24 static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable) 25 { 26 return 0; 27 } 28 static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable) 29 { 30 return 0; 31 } 32 static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec, 33 hda_nid_t nid, int dev_id, int rate) 34 { 35 return 0; 36 } 37 static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, 38 int dev_id, bool *audio_enabled, 39 char *buffer, int max_bytes) 40 { 41 return -ENODEV; 42 } 43 static inline int snd_hdac_acomp_init(struct hdac_bus *bus, 44 const struct drm_audio_component_audio_ops *aops, 45 int (*match_master)(struct device *, void *), 46 size_t extra_size) 47 { 48 return -ENODEV; 49 } 50 static inline int snd_hdac_acomp_exit(struct hdac_bus *bus) 51 { 52 return 0; 53 } 54 static inline int snd_hdac_acomp_register_notifier(struct hdac_bus *bus, 55 const struct drm_audio_component_audio_ops *ops) 56 { 57 return -ENODEV; 58 } 59 #endif 60 61 #endif /* __SOUND_HDA_COMPONENT_H */ 62