e2dc7d7d8e
A couple of i915_audio_component ops have been added and accessed directly from patch_hdmi.c. Ideally all these should be factored out into hdac_i915.c. This patch does it, adds two new helper functions for setting N/CTS and fetching ELD bytes. One bonus is that the hackish widget vs port mapping is also moved to hdac_i915.c, so that it can be fixed / enhanced more cleanly. Reviewed-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* HD-Audio helpers to sync with i915 driver
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*/
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#ifndef __SOUND_HDA_I915_H
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#define __SOUND_HDA_I915_H
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#include <drm/i915_component.h>
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#ifdef CONFIG_SND_HDA_I915
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int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
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int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
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int snd_hdac_get_display_clk(struct hdac_bus *bus);
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int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid, int rate);
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int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
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bool *audio_enabled, char *buffer, int max_bytes);
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int snd_hdac_i915_init(struct hdac_bus *bus);
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int snd_hdac_i915_exit(struct hdac_bus *bus);
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int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
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#else
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static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
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{
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return 0;
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}
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static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
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{
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return 0;
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}
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static inline int snd_hdac_get_display_clk(struct hdac_bus *bus)
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{
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return 0;
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}
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static inline int snd_hdac_sync_audio_rate(struct hdac_bus *bus, hda_nid_t nid,
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int rate)
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{
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return 0;
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}
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static inline int snd_hdac_acomp_get_eld(struct hdac_bus *bus, hda_nid_t nid,
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bool *audio_enabled, char *buffer,
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int max_bytes)
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{
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return -ENODEV;
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}
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static inline int snd_hdac_i915_init(struct hdac_bus *bus)
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{
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return -ENODEV;
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}
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static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
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{
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return 0;
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}
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static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
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{
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return -ENODEV;
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}
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#endif
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#endif /* __SOUND_HDA_I915_H */
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