Linux Audio

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Note: File does not exist in v3.1.
 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 */