42 lines
993 B
C
42 lines
993 B
C
|
/*
|
||
|
|
* 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);
|
||
|
|
};
|
||
|
|
|
||
|
|
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 */
|