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ALSA: Support NVIDIA MCP78/7A HDMI audio
Add NVIDIA HDMI HD-audio codec support in snd-hda-intel driver, include NVIDIA MCP78/7A HDMI. Signed-off-by: Wei Ni <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Jaroslav Kysela <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,164 @@ | ||
| /* | ||
| * Universal Interface for Intel High Definition Audio Codec | ||
| * | ||
| * HD audio interface patch for NVIDIA HDMI codecs | ||
| * | ||
| * Copyright (c) 2008 NVIDIA Corp. All rights reserved. | ||
| * Copyright (c) 2008 Wei Ni <[email protected]> | ||
| * | ||
| * | ||
| * This driver is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This driver is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| */ | ||
|
|
||
| #include <linux/init.h> | ||
| #include <linux/delay.h> | ||
| #include <linux/slab.h> | ||
| #include <sound/core.h> | ||
| #include "hda_codec.h" | ||
| #include "hda_local.h" | ||
|
|
||
| struct nvhdmi_spec { | ||
| struct hda_multi_out multiout; | ||
|
|
||
| struct hda_pcm pcm_rec; | ||
| }; | ||
|
|
||
| static struct hda_verb nvhdmi_basic_init[] = { | ||
| /* enable digital output on pin widget */ | ||
| { 0x05, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT }, | ||
| {} /* terminator */ | ||
| }; | ||
|
|
||
| /* | ||
| * Controls | ||
| */ | ||
| static int nvhdmi_build_controls(struct hda_codec *codec) | ||
| { | ||
| struct nvhdmi_spec *spec = codec->spec; | ||
| int err; | ||
|
|
||
| err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid); | ||
| if (err < 0) | ||
| return err; | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static int nvhdmi_init(struct hda_codec *codec) | ||
| { | ||
| snd_hda_sequence_write(codec, nvhdmi_basic_init); | ||
| return 0; | ||
| } | ||
|
|
||
| /* | ||
| * Digital out | ||
| */ | ||
| static int nvhdmi_dig_playback_pcm_open(struct hda_pcm_stream *hinfo, | ||
| struct hda_codec *codec, | ||
| struct snd_pcm_substream *substream) | ||
| { | ||
| struct nvhdmi_spec *spec = codec->spec; | ||
| return snd_hda_multi_out_dig_open(codec, &spec->multiout); | ||
| } | ||
|
|
||
| static int nvhdmi_dig_playback_pcm_close(struct hda_pcm_stream *hinfo, | ||
| struct hda_codec *codec, | ||
| struct snd_pcm_substream *substream) | ||
| { | ||
| struct nvhdmi_spec *spec = codec->spec; | ||
| return snd_hda_multi_out_dig_close(codec, &spec->multiout); | ||
| } | ||
|
|
||
| static int nvhdmi_dig_playback_pcm_prepare(struct hda_pcm_stream *hinfo, | ||
| struct hda_codec *codec, | ||
| unsigned int stream_tag, | ||
| unsigned int format, | ||
| struct snd_pcm_substream *substream) | ||
| { | ||
| struct nvhdmi_spec *spec = codec->spec; | ||
| return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag, | ||
| format, substream); | ||
| } | ||
|
|
||
| static struct hda_pcm_stream nvhdmi_pcm_digital_playback = { | ||
| .substreams = 1, | ||
| .channels_min = 2, | ||
| .channels_max = 2, | ||
| .nid = 0x4, /* NID to query formats and rates and setup streams */ | ||
| .rates = SNDRV_PCM_RATE_48000, | ||
| .maxbps = 16, | ||
| .formats = SNDRV_PCM_FMTBIT_S16_LE, | ||
| .ops = { | ||
| .open = nvhdmi_dig_playback_pcm_open, | ||
| .close = nvhdmi_dig_playback_pcm_close, | ||
| .prepare = nvhdmi_dig_playback_pcm_prepare | ||
| }, | ||
| }; | ||
|
|
||
| static int nvhdmi_build_pcms(struct hda_codec *codec) | ||
| { | ||
| struct nvhdmi_spec *spec = codec->spec; | ||
| struct hda_pcm *info = &spec->pcm_rec; | ||
|
|
||
| codec->num_pcms = 1; | ||
| codec->pcm_info = info; | ||
|
|
||
| info->name = "NVIDIA HDMI"; | ||
| info->stream[SNDRV_PCM_STREAM_PLAYBACK] = nvhdmi_pcm_digital_playback; | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static void nvhdmi_free(struct hda_codec *codec) | ||
| { | ||
| kfree(codec->spec); | ||
| } | ||
|
|
||
| static struct hda_codec_ops nvhdmi_patch_ops = { | ||
| .build_controls = nvhdmi_build_controls, | ||
| .build_pcms = nvhdmi_build_pcms, | ||
| .init = nvhdmi_init, | ||
| .free = nvhdmi_free, | ||
| }; | ||
|
|
||
| static int patch_nvhdmi(struct hda_codec *codec) | ||
| { | ||
| struct nvhdmi_spec *spec; | ||
|
|
||
| spec = kzalloc(sizeof(*spec), GFP_KERNEL); | ||
| if (spec == NULL) | ||
| return -ENOMEM; | ||
|
|
||
| codec->spec = spec; | ||
|
|
||
| spec->multiout.num_dacs = 0; /* no analog */ | ||
| spec->multiout.max_channels = 2; | ||
| spec->multiout.dig_out_nid = 0x4; /* NID for copying analog to digital, | ||
| * seems to be unused in pure-digital | ||
| * case. */ | ||
|
|
||
| codec->patch_ops = nvhdmi_patch_ops; | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| /* | ||
| * patch entries | ||
| */ | ||
| struct hda_codec_preset snd_hda_preset_nvhdmi[] = { | ||
| { .id = 0x10de0002, .name = "NVIDIA MCP78 HDMI", .patch = patch_nvhdmi }, | ||
| { .id = 0x10de0007, .name = "NVIDIA MCP7A HDMI", .patch = patch_nvhdmi }, | ||
| {} /* terminator */ | ||
| }; |