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linux-libre
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include
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sound
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hda_i915.h

hda_i915.h 1.6 KB
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  1. /*
    2. 

  2.  * HD-Audio helpers to sync with i915 driver
    3. 

  3.  */
    4. 

  4. #ifndef __SOUND_HDA_I915_H
    5. 

  5. #define __SOUND_HDA_I915_H
    6. 

  6. 

  7. #include <drm/i915_component.h>
    8. 

  8. 

  9. #ifdef CONFIG_SND_HDA_I915
    10. 

  10. int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
    11. 

  11. int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
    12. 

  12. void snd_hdac_i915_set_bclk(struct hdac_bus *bus);
    13. 

  13. int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid, int rate);
    14. 

  14. int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
    15. 

  15. 			   bool *audio_enabled, char *buffer, int max_bytes);
    16. 

  16. int snd_hdac_i915_init(struct hdac_bus *bus);
    17. 

  17. int snd_hdac_i915_exit(struct hdac_bus *bus);
    18. 

  18. int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
    19. 

  19. #else
    20. 

  20. static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
    21. 

  21. {
    22. 

  22. 	return 0;
    23. 

  23. }
    24. 

  24. static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
    25. 

  25. {
    26. 

  26. 	return 0;
    27. 

  27. }
    28. 

  28. static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
    29. 

  29. {
    30. 

  30. }
    31. 

  31. static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
    32. 

  32. 					   hda_nid_t nid, int rate)
    33. 

  33. {
    34. 

  34. 	return 0;
    35. 

  35. }
    36. 

  36. static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
    37. 

  37. 					 bool *audio_enabled, char *buffer,
    38. 

  38. 					 int max_bytes)
    39. 

  39. {
    40. 

  40. 	return -ENODEV;
    41. 

  41. }
    42. 

  42. static inline int snd_hdac_i915_init(struct hdac_bus *bus)
    43. 

  43. {
    44. 

  44. 	return -ENODEV;
    45. 

  45. }
    46. 

  46. static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
    47. 

  47. {
    48. 

  48. 	return 0;
    49. 

  49. }
    50. 

  50. static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
    51. 

  51. {
    52. 

  52. 	return -ENODEV;
    53. 

  53. }
    54. 

  54. #endif
    55. 

  55. 

  56. #endif /* __SOUND_HDA_I915_H */
    57. 

  57.