include/sound/hda_i915.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * HD-Audio helpers to sync with i915 driver
   4  */
   5 #ifndef __SOUND_HDA_I915_H
   6 #define __SOUND_HDA_I915_H
   7
   8 #include <drm/i915_component.h>
   9
  10 #ifdef CONFIG_SND_HDA_I915
  11 int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
  12 int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
  13 void snd_hdac_i915_set_bclk(struct hdac_bus *bus);
  14 int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
  15                              int dev_id, int rate);
  16 int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
  17                            bool *audio_enabled, char *buffer, int max_bytes);
  18 int snd_hdac_i915_init(struct hdac_bus *bus);
  19 int snd_hdac_i915_exit(struct hdac_bus *bus);
  20 int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
  21 #else
  22 static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
  23 {
  24         return 0;
  25 }
  26 static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
  27 {
  28         return 0;
  29 }
  30 static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
  31 {
  32 }
  33 static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
  34                                            hda_nid_t nid, int dev_id, int rate)
  35 {
  36         return 0;
  37 }
  38 static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
  39                                          int dev_id, bool *audio_enabled,
  40                                          char *buffer, int max_bytes)
  41 {
  42         return -ENODEV;
  43 }
  44 static inline int snd_hdac_i915_init(struct hdac_bus *bus)
  45 {
  46         return -ENODEV;
  47 }
  48 static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
  49 {
  50         return 0;
  51 }
  52 static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
  53 {
  54         return -ENODEV;
  55 }
  56 #endif
  57
  58 #endif /* __SOUND_HDA_I915_H */