include/sound/hda_i915.h

   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, int rate);
  14 int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
  15                            bool *audio_enabled, char *buffer, int max_bytes);
  16 int snd_hdac_i915_init(struct hdac_bus *bus);
  17 int snd_hdac_i915_exit(struct hdac_bus *bus);
  18 int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
  19 #else
  20 static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
  21 {
  22         return 0;
  23 }
  24 static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
  25 {
  26         return 0;
  27 }
  28 static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
  29 {
  30 }
  31 static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
  32                                            hda_nid_t nid, int rate)
  33 {
  34         return 0;
  35 }
  36 static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
  37                                          bool *audio_enabled, char *buffer,
  38                                          int max_bytes)
  39 {
  40         return -ENODEV;
  41 }
  42 static inline int snd_hdac_i915_init(struct hdac_bus *bus)
  43 {
  44         return -ENODEV;
  45 }
  46 static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
  47 {
  48         return 0;
  49 }
  50 static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
  51 {
  52         return -ENODEV;
  53 }
  54 #endif
  55
  56 #endif /* __SOUND_HDA_I915_H */