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