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