LXR linux/include/sound/hda

   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
  10int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
  11int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
  12void snd_hdac_i915_set_bclk(struct hdac_bus *bus);
  13int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid, int rate);
  14int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
  15                           bool *audio_enabled, char *buffer, int max_bytes);
  16int snd_hdac_i915_init(struct hdac_bus *bus);
  17int snd_hdac_i915_exit(struct hdac_bus *bus);
  18int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
  19#else
  20static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
  21{
  22        return 0;
  23}
  24static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
  25{
  26        return 0;
  27}
  28static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
  29{
  30}
  31static inline int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid,
  32                                           int rate)
  33{
  34        return 0;
  35}
  36static inline int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
  37                                         bool *audio_enabled, char *buffer,
  38                                         int max_bytes)
  39{
  40        return -ENODEV;
  41}
  42static inline int snd_hdac_i915_init(struct hdac_bus *bus)
  43{
  44        return -ENODEV;
  45}
  46static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
  47{
  48        return 0;
  49}
  50static 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 */
  57