mirror of https://gitee.com/openkylin/linux.git
42 lines
993 B
C
42 lines
993 B
C
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/*
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* For multichannel support
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*/
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#ifndef __SOUND_HDA_CHMAP_H
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#define __SOUND_HDA_CHMAP_H
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#include <sound/hdaudio.h>
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struct cea_channel_speaker_allocation {
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int ca_index;
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int speakers[8];
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/* derived values, just for convenience */
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int channels;
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int spk_mask;
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};
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struct hdac_chmap;
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struct hdac_chmap_ops {
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/*
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* Helpers for producing the channel map TLVs. These can be overridden
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* for devices that have non-standard mapping requirements.
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*/
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int (*chmap_cea_alloc_validate_get_type)(struct hdac_chmap *chmap,
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struct cea_channel_speaker_allocation *cap, int channels);
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void (*cea_alloc_to_tlv_chmap)
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(struct cea_channel_speaker_allocation *cap,
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unsigned int *chmap, int channels);
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/* check that the user-given chmap is supported */
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int (*chmap_validate)(int ca, int channels, unsigned char *chmap);
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};
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struct hdac_chmap {
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unsigned int channels_max; /* max over all cvts */
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struct hdac_chmap_ops ops;
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struct hdac_device *hdac;
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};
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#endif /* __SOUND_HDA_CHMAP_H */
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