| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 |
- /*
- * For multichannel support
- */
- #ifndef __SOUND_HDA_CHMAP_H
- #define __SOUND_HDA_CHMAP_H
- #include <sound/pcm.h>
- #include <sound/hdaudio.h>
- #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
- 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,
- unsigned int *chmap, int channels);
- /* check that the user-given chmap is supported */
- int (*chmap_validate)(struct hdac_chmap *hchmap, int ca,
- int channels, unsigned char *chmap);
- int (*get_spk_alloc)(struct hdac_device *hdac, int pcm_idx);
- 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);
- /* 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 {
- unsigned int 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, unsigned char *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, unsigned char *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(unsigned char 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 */
|
