sound/soc/codecs/hda-dai.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
   4 //
   5 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
   6 //
   7
   8 #include <sound/soc.h>
   9 #include <sound/hda_codec.h>
  10 #include "hda.h"
  11
  12 static int hda_codec_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
  13 {
  14         struct hda_pcm_stream *stream_info;
  15         struct hda_codec *codec;
  16         struct hda_pcm *pcm;
  17         int ret;
  18
  19         codec = dev_to_hda_codec(dai->dev);
  20         stream_info = snd_soc_dai_get_dma_data(dai, substream);
  21         pcm = container_of(stream_info, struct hda_pcm, stream[substream->stream]);
  22
  23         dev_dbg(dai->dev, "open stream codec: %08x, info: %p, pcm: %p %s substream: %p\n",
  24                 codec->core.vendor_id, stream_info, pcm, pcm->name, substream);
  25
  26         snd_hda_codec_pcm_get(pcm);
  27
  28         ret = stream_info->ops.open(stream_info, codec, substream);
  29         if (ret < 0) {
  30                 dev_err(dai->dev, "codec open failed: %d\n", ret);
  31                 snd_hda_codec_pcm_put(pcm);
  32                 return ret;
  33         }
  34
  35         return 0;
  36 }
  37
  38 static void hda_codec_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
  39 {
  40         struct hda_pcm_stream *stream_info;
  41         struct hda_codec *codec;
  42         struct hda_pcm *pcm;
  43         int ret;
  44
  45         codec = dev_to_hda_codec(dai->dev);
  46         stream_info = snd_soc_dai_get_dma_data(dai, substream);
  47         pcm = container_of(stream_info, struct hda_pcm, stream[substream->stream]);
  48
  49         dev_dbg(dai->dev, "close stream codec: %08x, info: %p, pcm: %p %s substream: %p\n",
  50                 codec->core.vendor_id, stream_info, pcm, pcm->name, substream);
  51
  52         ret = stream_info->ops.close(stream_info, codec, substream);
  53         if (ret < 0)
  54                 dev_err(dai->dev, "codec close failed: %d\n", ret);
  55
  56         snd_hda_codec_pcm_put(pcm);
  57 }
  58
  59 static int hda_codec_dai_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
  60 {
  61         struct hda_pcm_stream *stream_info;
  62         struct hda_codec *codec;
  63
  64         codec = dev_to_hda_codec(dai->dev);
  65         stream_info = snd_soc_dai_get_dma_data(dai, substream);
  66
  67         snd_hda_codec_cleanup(codec, stream_info, substream);
  68
  69         return 0;
  70 }
  71
  72 static int hda_codec_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
  73 {
  74         struct snd_pcm_runtime *runtime = substream->runtime;
  75         struct hda_pcm_stream *stream_info;
  76         struct hdac_stream *stream;
  77         struct hda_codec *codec;
  78         unsigned int format;
  79         unsigned int bits;
  80         int ret;
  81
  82         codec = dev_to_hda_codec(dai->dev);
  83         stream = substream->runtime->private_data;
  84         stream_info = snd_soc_dai_get_dma_data(dai, substream);
  85
  86         bits = snd_hdac_stream_format_bits(runtime->format, runtime->subformat,
  87                                            stream_info->maxbps);
  88         format = snd_hdac_stream_format(runtime->channels, bits, runtime->rate);
  89
  90         ret = snd_hda_codec_prepare(codec, stream_info, stream->stream_tag, format, substream);
  91         if (ret < 0) {
  92                 dev_err(dai->dev, "codec prepare failed: %d\n", ret);
  93                 return ret;
  94         }
  95
  96         return 0;
  97 }
  98
  99 const struct snd_soc_dai_ops snd_soc_hda_codec_dai_ops = {
 100         .startup = hda_codec_dai_startup,
 101         .shutdown = hda_codec_dai_shutdown,
 102         .hw_free = hda_codec_dai_hw_free,
 103         .prepare = hda_codec_dai_prepare,
 104 };
 105 EXPORT_SYMBOL_GPL(snd_soc_hda_codec_dai_ops);