projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 67b90cb8 SP |
1 | /* |
| 2 | * For multichannel support | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef __SOUND_HDA_CHMAP_H | |
| 6 | #define __SOUND_HDA_CHMAP_H | |
| 7 | ||
| 2f6e8a85 | 8 | #include <sound/pcm.h> |
| 67b90cb8 SP |
9 | #include <sound/hdaudio.h> |
| 10 | ||
| 828cb4ed SP |
11 | |
| 12 | #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80 | |
| 13 | ||
| f302240d | 14 | struct hdac_cea_channel_speaker_allocation { |
| 67b90cb8 SP |
15 | int ca_index; |
| 16 | int speakers[8]; | |
| 17 | ||
| 18 | /* derived values, just for convenience */ | |
| 19 | int channels; | |
| 20 | int spk_mask; | |
| 21 | }; | |
| 22 | struct hdac_chmap; | |
| 23 | ||
| 24 | struct hdac_chmap_ops { | |
| 25 | /* | |
| 26 | * Helpers for producing the channel map TLVs. These can be overridden | |
| 27 | * for devices that have non-standard mapping requirements. | |
| 28 | */ | |
| 29 | int (*chmap_cea_alloc_validate_get_type)(struct hdac_chmap *chmap, | |
| f302240d | 30 | struct hdac_cea_channel_speaker_allocation *cap, int channels); |
| 828cb4ed SP |
31 | void (*cea_alloc_to_tlv_chmap)(struct hdac_chmap *hchmap, |
| 32 | struct hdac_cea_channel_speaker_allocation *cap, | |
| 67b90cb8 SP |
33 | unsigned int *chmap, int channels); |
| 34 | ||
| 35 | /* check that the user-given chmap is supported */ | |
| 828cb4ed SP |
36 | int (*chmap_validate)(struct hdac_chmap *hchmap, int ca, |
| 37 | int channels, unsigned char *chmap); | |
| 9b3dc8aa | 38 | |
| 44fde3b8 SP |
39 | int (*get_spk_alloc)(struct hdac_device *hdac, int pcm_idx); |
| 40 | ||
| 9b3dc8aa SP |
41 | void (*get_chmap)(struct hdac_device *hdac, int pcm_idx, |
| 42 | unsigned char *chmap); | |
| 43 | void (*set_chmap)(struct hdac_device *hdac, int pcm_idx, | |
| 44 | unsigned char *chmap, int prepared); | |
| 45 | bool (*is_pcm_attached)(struct hdac_device *hdac, int pcm_idx); | |
| 739ffee9 SP |
46 | |
| 47 | /* get and set channel assigned to each HDMI ASP (audio sample packet) slot */ | |
| 48 | int (*pin_get_slot_channel)(struct hdac_device *codec, | |
| 49 | hda_nid_t pin_nid, int asp_slot); | |
| 50 | int (*pin_set_slot_channel)(struct hdac_device *codec, | |
| 51 | hda_nid_t pin_nid, int asp_slot, int channel); | |
| 52 | void (*set_channel_count)(struct hdac_device *codec, | |
| 53 | hda_nid_t cvt_nid, int chs); | |
| 67b90cb8 SP |
54 | }; |
| 55 | ||
| 56 | struct hdac_chmap { | |
| 57 | unsigned int channels_max; /* max over all cvts */ | |
| 58 | struct hdac_chmap_ops ops; | |
| 59 | struct hdac_device *hdac; | |
| 60 | }; | |
| 61 | ||
| 739ffee9 SP |
62 | void snd_hdac_register_chmap_ops(struct hdac_device *hdac, |
| 63 | struct hdac_chmap *chmap); | |
| bb63f726 | 64 | int snd_hdac_channel_allocation(struct hdac_device *hdac, int spk_alloc, |
| 2f6e8a85 SP |
65 | int channels, bool chmap_set, |
| 66 | bool non_pcm, unsigned char *map); | |
| bb63f726 SP |
67 | int snd_hdac_get_active_channels(int ca); |
| 68 | void snd_hdac_setup_channel_mapping(struct hdac_chmap *chmap, | |
| 2f6e8a85 SP |
69 | hda_nid_t pin_nid, bool non_pcm, int ca, |
| 70 | int channels, unsigned char *map, | |
| 71 | bool chmap_set); | |
| bb63f726 SP |
72 | void snd_hdac_print_channel_allocation(int spk_alloc, char *buf, int buflen); |
| 73 | struct hdac_cea_channel_speaker_allocation *snd_hdac_get_ch_alloc_from_ca(int ca); | |
| 74 | int snd_hdac_chmap_to_spk_mask(unsigned char c); | |
| 75 | int snd_hdac_spk_to_chmap(int spk); | |
| 2f6e8a85 SP |
76 | int snd_hdac_add_chmap_ctls(struct snd_pcm *pcm, int pcm_idx, |
| 77 | struct hdac_chmap *chmap); | |
| 67b90cb8 | 78 | #endif /* __SOUND_HDA_CHMAP_H */ |