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 int snd_hdac_get_display_clk(struct hdac_bus *bus);
  13 int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid, int rate);
  14 int snd_hdac_acomp_get_eld(struct hdac_bus *bus, 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 int snd_hdac_get_display_clk(struct hdac_bus *bus)
  29 {
  30         return 0;
  31 }
  32 static inline int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid,
  33                                            int rate)
  34 {
  35         return 0;
  36 }
  37 static inline int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
  38                                          bool *audio_enabled, char *buffer,
  39                                          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 */