1 /* 2 * HD-Audio helpers to sync with i915 driver 3 */ 4 #ifndef __SOUND_HDA_I915_H 5 #define __SOUND_HDA_I915_H 6 7 #include <drm/i915_component.h> 8 9 #ifdef CONFIG_SND_HDA_I915 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 void snd_hdac_i915_set_bclk(struct hdac_bus *bus); 13 int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, 14 int dev_id, int rate); 15 int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id, 16 bool *audio_enabled, char *buffer, int max_bytes); 17 int snd_hdac_i915_init(struct hdac_bus *bus); 18 int snd_hdac_i915_exit(struct hdac_bus *bus); 19 int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *); 20 #else 21 static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable) 22 { 23 return 0; 24 } 25 static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable) 26 { 27 return 0; 28 } 29 static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus) 30 { 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_i915_init(struct hdac_bus *bus) 44 { 45 return -ENODEV; 46 } 47 static inline int snd_hdac_i915_exit(struct hdac_bus *bus) 48 { 49 return 0; 50 } 51 static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops) 52 { 53 return -ENODEV; 54 } 55 #endif 56 57 #endif /* __SOUND_HDA_I915_H */ 58