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79 lines
2.6 KiB
79 lines
2.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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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/pcm.h> |
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#include <sound/hdaudio.h> |
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#define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80 |
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struct hdac_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 hdac_cea_channel_speaker_allocation *cap, int channels); |
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void (*cea_alloc_to_tlv_chmap)(struct hdac_chmap *hchmap, |
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struct hdac_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)(struct hdac_chmap *hchmap, int ca, |
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int channels, unsigned char *chmap); |
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int (*get_spk_alloc)(struct hdac_device *hdac, int pcm_idx); |
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void (*get_chmap)(struct hdac_device *hdac, int pcm_idx, |
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unsigned char *chmap); |
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void (*set_chmap)(struct hdac_device *hdac, int pcm_idx, |
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unsigned char *chmap, int prepared); |
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bool (*is_pcm_attached)(struct hdac_device *hdac, int pcm_idx); |
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/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */ |
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int (*pin_get_slot_channel)(struct hdac_device *codec, |
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hda_nid_t pin_nid, int asp_slot); |
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int (*pin_set_slot_channel)(struct hdac_device *codec, |
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hda_nid_t pin_nid, int asp_slot, int channel); |
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void (*set_channel_count)(struct hdac_device *codec, |
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hda_nid_t cvt_nid, int chs); |
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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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void snd_hdac_register_chmap_ops(struct hdac_device *hdac, |
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struct hdac_chmap *chmap); |
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int snd_hdac_channel_allocation(struct hdac_device *hdac, int spk_alloc, |
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int channels, bool chmap_set, |
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bool non_pcm, unsigned char *map); |
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int snd_hdac_get_active_channels(int ca); |
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void snd_hdac_setup_channel_mapping(struct hdac_chmap *chmap, |
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hda_nid_t pin_nid, bool non_pcm, int ca, |
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int channels, unsigned char *map, |
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bool chmap_set); |
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void snd_hdac_print_channel_allocation(int spk_alloc, char *buf, int buflen); |
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struct hdac_cea_channel_speaker_allocation *snd_hdac_get_ch_alloc_from_ca(int ca); |
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int snd_hdac_chmap_to_spk_mask(unsigned char c); |
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int snd_hdac_spk_to_chmap(int spk); |
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int snd_hdac_add_chmap_ctls(struct snd_pcm *pcm, int pcm_idx, |
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struct hdac_chmap *chmap); |
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#endif /* __SOUND_HDA_CHMAP_H */
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