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