| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Nvidia HDMI codec support |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <sound/core.h> |
| #include <sound/tlv.h> |
| #include <sound/hdaudio.h> |
| #include <sound/hda_codec.h> |
| #include "hda_local.h" |
| #include "hdmi_local.h" |
| |
| enum { |
| MODEL_GENERIC, |
| MODEL_LEGACY, |
| }; |
| |
| /* |
| * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on: |
| * - 0x10de0015 |
| * - 0x10de0040 |
| */ |
| static int nvhdmi_chmap_cea_alloc_validate_get_type(struct hdac_chmap *chmap, |
| struct hdac_cea_channel_speaker_allocation *cap, int channels) |
| { |
| if (cap->ca_index == 0x00 && channels == 2) |
| return SNDRV_CTL_TLVT_CHMAP_FIXED; |
| |
| /* If the speaker allocation matches the channel count, it is OK. */ |
| if (cap->channels != channels) |
| return -1; |
| |
| /* all channels are remappable freely */ |
| return SNDRV_CTL_TLVT_CHMAP_VAR; |
| } |
| |
| static int nvhdmi_chmap_validate(struct hdac_chmap *chmap, |
| int ca, int chs, unsigned char *map) |
| { |
| if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| /* map from pin NID to port; port is 0-based */ |
| /* for Nvidia: assume widget NID starting from 4, with step 1 (4, 5, 6, ...) */ |
| static int nvhdmi_pin2port(void *audio_ptr, int pin_nid) |
| { |
| return pin_nid - 4; |
| } |
| |
| /* reverse-map from port to pin NID: see above */ |
| static int nvhdmi_port2pin(struct hda_codec *codec, int port) |
| { |
| return port + 4; |
| } |
| |
| static const struct drm_audio_component_audio_ops nvhdmi_audio_ops = { |
| .pin2port = nvhdmi_pin2port, |
| .pin_eld_notify = snd_hda_hdmi_acomp_pin_eld_notify, |
| .master_bind = snd_hda_hdmi_acomp_master_bind, |
| .master_unbind = snd_hda_hdmi_acomp_master_unbind, |
| }; |
| |
| static int probe_generic(struct hda_codec *codec) |
| { |
| struct hdmi_spec *spec; |
| int err; |
| |
| err = snd_hda_hdmi_generic_alloc(codec); |
| if (err < 0) |
| return err; |
| codec->dp_mst = true; |
| |
| spec = codec->spec; |
| |
| err = snd_hda_hdmi_parse_codec(codec); |
| if (err < 0) { |
| snd_hda_hdmi_generic_spec_free(codec); |
| return err; |
| } |
| |
| snd_hda_hdmi_generic_init_per_pins(codec); |
| |
| spec->dyn_pin_out = true; |
| |
| spec->chmap.ops.chmap_cea_alloc_validate_get_type = |
| nvhdmi_chmap_cea_alloc_validate_get_type; |
| spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate; |
| spec->nv_dp_workaround = true; |
| |
| codec->link_down_at_suspend = 1; |
| |
| snd_hda_hdmi_acomp_init(codec, &nvhdmi_audio_ops, nvhdmi_port2pin); |
| |
| return 0; |
| } |
| |
| static int probe_legacy(struct hda_codec *codec) |
| { |
| struct hdmi_spec *spec; |
| int err; |
| |
| err = snd_hda_hdmi_generic_probe(codec); |
| if (err) |
| return err; |
| |
| spec = codec->spec; |
| spec->dyn_pin_out = true; |
| |
| spec->chmap.ops.chmap_cea_alloc_validate_get_type = |
| nvhdmi_chmap_cea_alloc_validate_get_type; |
| spec->chmap.ops.chmap_validate = nvhdmi_chmap_validate; |
| spec->nv_dp_workaround = true; |
| |
| codec->link_down_at_suspend = 1; |
| |
| return 0; |
| } |
| |
| static int nvhdmi_probe(struct hda_codec *codec, const struct hda_device_id *id) |
| { |
| if (id->driver_data == MODEL_LEGACY) |
| return probe_legacy(codec); |
| else |
| return probe_generic(codec); |
| } |
| |
| static const struct hda_codec_ops nvhdmi_codec_ops = { |
| .probe = nvhdmi_probe, |
| .remove = snd_hda_hdmi_generic_remove, |
| .init = snd_hda_hdmi_generic_init, |
| .build_pcms = snd_hda_hdmi_generic_build_pcms, |
| .build_controls = snd_hda_hdmi_generic_build_controls, |
| .unsol_event = snd_hda_hdmi_generic_unsol_event, |
| .suspend = snd_hda_hdmi_generic_suspend, |
| .resume = snd_hda_hdmi_generic_resume, |
| }; |
| |
| static const struct hda_device_id snd_hda_id_nvhdmi[] = { |
| HDA_CODEC_ID_MODEL(0x10de0008, "GPU 08 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0009, "GPU 09 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de000a, "GPU 0a HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de000b, "GPU 0b HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de000c, "MCP89 HDMI", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de000d, "GPU 0d HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0010, "GPU 10 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0011, "GPU 11 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0012, "GPU 12 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0013, "GPU 13 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0014, "GPU 14 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0015, "GPU 15 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0016, "GPU 16 HDMI/DP", MODEL_LEGACY), |
| /* 17 is known to be absent */ |
| HDA_CODEC_ID_MODEL(0x10de0018, "GPU 18 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0019, "GPU 19 HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de001a, "GPU 1a HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de001b, "GPU 1b HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de001c, "GPU 1c HDMI/DP", MODEL_LEGACY), |
| HDA_CODEC_ID_MODEL(0x10de0040, "GPU 40 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0041, "GPU 41 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0042, "GPU 42 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0043, "GPU 43 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0044, "GPU 44 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0045, "GPU 45 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0050, "GPU 50 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0051, "GPU 51 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0052, "GPU 52 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0060, "GPU 60 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0061, "GPU 61 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0062, "GPU 62 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0070, "GPU 70 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0071, "GPU 71 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0072, "GPU 72 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0073, "GPU 73 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0074, "GPU 74 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0076, "GPU 76 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de007b, "GPU 7b HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de007c, "GPU 7c HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de007d, "GPU 7d HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de007e, "GPU 7e HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0080, "GPU 80 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0081, "GPU 81 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0082, "GPU 82 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0083, "GPU 83 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0084, "GPU 84 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0090, "GPU 90 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0091, "GPU 91 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0092, "GPU 92 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0093, "GPU 93 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0094, "GPU 94 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0095, "GPU 95 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0097, "GPU 97 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0098, "GPU 98 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de0099, "GPU 99 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de009a, "GPU 9a HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de009d, "GPU 9d HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de009e, "GPU 9e HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de009f, "GPU 9f HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de00a0, "GPU a0 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de00a3, "GPU a3 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de00a4, "GPU a4 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de00a5, "GPU a5 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de00a6, "GPU a6 HDMI/DP", MODEL_GENERIC), |
| HDA_CODEC_ID_MODEL(0x10de00a7, "GPU a7 HDMI/DP", MODEL_GENERIC), |
| {} /* terminator */ |
| }; |
| MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_nvhdmi); |
| |
| MODULE_LICENSE("GPL"); |
| MODULE_DESCRIPTION("Nvidia HDMI HD-audio codec"); |
| MODULE_IMPORT_NS("SND_HDA_CODEC_HDMI"); |
| |
| static struct hda_codec_driver nvhdmi_driver = { |
| .id = snd_hda_id_nvhdmi, |
| .ops = &nvhdmi_codec_ops, |
| }; |
| |
| module_hda_codec_driver(nvhdmi_driver); |
