ASoC: core: Add helper function to initialize the runtime pcm
We use the same code to initialize the runtime pcm based on the snd_soc_pcm_stream struct on both the playback and capture path. Factor this code into a helper function to make things a bit more tidy. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -147,6 +147,26 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream,
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}
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}
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static void soc_pcm_init_runtime_hw(struct snd_pcm_hardware *hw,
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struct snd_soc_pcm_stream *codec_stream,
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struct snd_soc_pcm_stream *cpu_stream)
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{
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hw->rate_min = max(codec_stream->rate_min, cpu_stream->rate_min);
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hw->rate_max = max(codec_stream->rate_max, cpu_stream->rate_max);
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hw->channels_min = max(codec_stream->channels_min,
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cpu_stream->channels_min);
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hw->channels_max = min(codec_stream->channels_max,
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cpu_stream->channels_max);
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hw->formats = codec_stream->formats & cpu_stream->formats;
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hw->rates = codec_stream->rates & cpu_stream->rates;
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if (codec_stream->rates
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& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
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hw->rates |= cpu_stream->rates;
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if (cpu_stream->rates
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& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
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hw->rates |= codec_stream->rates;
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}
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/*
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* Called by ALSA when a PCM substream is opened, the runtime->hw record is
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* then initialized and any private data can be allocated. This also calls
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@ -212,51 +232,11 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
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/* Check that the codec and cpu DAIs are compatible */
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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runtime->hw.rate_min =
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max(codec_dai_drv->playback.rate_min,
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cpu_dai_drv->playback.rate_min);
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runtime->hw.rate_max =
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min(codec_dai_drv->playback.rate_max,
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cpu_dai_drv->playback.rate_max);
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runtime->hw.channels_min =
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max(codec_dai_drv->playback.channels_min,
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cpu_dai_drv->playback.channels_min);
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runtime->hw.channels_max =
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min(codec_dai_drv->playback.channels_max,
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cpu_dai_drv->playback.channels_max);
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runtime->hw.formats =
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codec_dai_drv->playback.formats & cpu_dai_drv->playback.formats;
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runtime->hw.rates =
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codec_dai_drv->playback.rates & cpu_dai_drv->playback.rates;
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if (codec_dai_drv->playback.rates
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& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
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runtime->hw.rates |= cpu_dai_drv->playback.rates;
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if (cpu_dai_drv->playback.rates
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& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
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runtime->hw.rates |= codec_dai_drv->playback.rates;
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soc_pcm_init_runtime_hw(&runtime->hw, &codec_dai_drv->playback,
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&cpu_dai_drv->playback);
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} else {
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runtime->hw.rate_min =
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max(codec_dai_drv->capture.rate_min,
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cpu_dai_drv->capture.rate_min);
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runtime->hw.rate_max =
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min(codec_dai_drv->capture.rate_max,
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cpu_dai_drv->capture.rate_max);
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runtime->hw.channels_min =
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max(codec_dai_drv->capture.channels_min,
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cpu_dai_drv->capture.channels_min);
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runtime->hw.channels_max =
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min(codec_dai_drv->capture.channels_max,
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cpu_dai_drv->capture.channels_max);
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runtime->hw.formats =
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codec_dai_drv->capture.formats & cpu_dai_drv->capture.formats;
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runtime->hw.rates =
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codec_dai_drv->capture.rates & cpu_dai_drv->capture.rates;
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if (codec_dai_drv->capture.rates
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& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
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runtime->hw.rates |= cpu_dai_drv->capture.rates;
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if (cpu_dai_drv->capture.rates
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& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
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runtime->hw.rates |= codec_dai_drv->capture.rates;
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soc_pcm_init_runtime_hw(&runtime->hw, &codec_dai_drv->capture,
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&cpu_dai_drv->capture);
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}
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ret = -EINVAL;
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