struct hdac_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 hdac_cea_channel_speaker_allocation *cap, int channels); void (*cea_alloc_to_tlv_chmap)(struct hdac_chmap *hchmap, struct hdac_cea_channel_speaker_allocation *cap, unsignedint *chmap, int channels);
/* check that the user-given chmap is supported */ int (*chmap_validate)(struct hdac_chmap *hchmap, int ca, int channels, unsignedchar *chmap);
int (*get_spk_alloc)(struct hdac_device *hdac, int pcm_idx);
void (*get_chmap)(struct hdac_device *hdac, int pcm_idx, unsignedchar *chmap); void (*set_chmap)(struct hdac_device *hdac, int pcm_idx, unsignedchar *chmap, int prepared); bool (*is_pcm_attached)(struct hdac_device *hdac, int pcm_idx);
/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */ int (*pin_get_slot_channel)(struct hdac_device *codec,
hda_nid_t pin_nid, int asp_slot); int (*pin_set_slot_channel)(struct hdac_device *codec,
hda_nid_t pin_nid, int asp_slot, int channel); void (*set_channel_count)(struct hdac_device *codec,
hda_nid_t cvt_nid, int chs);
};
struct hdac_chmap { unsignedint channels_max; /* max over all cvts */ struct hdac_chmap_ops ops; struct hdac_device *hdac;
};
void snd_hdac_register_chmap_ops(struct hdac_device *hdac, struct hdac_chmap *chmap); int snd_hdac_channel_allocation(struct hdac_device *hdac, int spk_alloc, int channels, bool chmap_set, bool non_pcm, unsignedchar *map); int snd_hdac_get_active_channels(int ca); void snd_hdac_setup_channel_mapping(struct hdac_chmap *chmap,
hda_nid_t pin_nid, bool non_pcm, int ca, int channels, unsignedchar *map, bool chmap_set); void snd_hdac_print_channel_allocation(int spk_alloc, char *buf, int buflen); struct hdac_cea_channel_speaker_allocation *snd_hdac_get_ch_alloc_from_ca(int ca); int snd_hdac_chmap_to_spk_mask(unsignedchar c); int snd_hdac_spk_to_chmap(int spk); int snd_hdac_add_chmap_ctls(struct snd_pcm *pcm, int pcm_idx, struct hdac_chmap *chmap); #endif/* __SOUND_HDA_CHMAP_H */
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