tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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);
12int snd_hdac_get_display_clk(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 int snd_hdac_get_display_clk(struct hdac_bus *bus)
29{
30 return 0;
31}
32static inline int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid,
33 int rate)
34{
35 return 0;
36}
37static inline int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
38 bool *audio_enabled, char *buffer,
39 int max_bytes)
40{
41 return -ENODEV;
42}
43static inline int snd_hdac_i915_init(struct hdac_bus *bus)
44{
45 return -ENODEV;
46}
47static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
48{
49 return 0;
50}
51static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
52{
53 return -ENODEV;
54}
55#endif
56
57#endif /* __SOUND_HDA_I915_H */