diff options
Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r-- | sound/soc/soc-pcm.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index fabeac164a6c..30264bc592f6 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -678,6 +678,16 @@ static void close_delayed_work(struct work_struct *work) mutex_unlock(&rtd->pcm_mutex); } +static void codec2codec_close_delayed_work(struct work_struct *work) +{ + /* + * Currently nothing to do for c2c links + * Since c2c links are internal nodes in the DAPM graph and + * don't interface with the outside world or application layer + * we don't have to do any special handling on close. + */ +} + /* * Called by ALSA when a PCM substream is closed. Private data can be * freed here. The cpu DAI, codec DAI, machine and components are also @@ -3011,6 +3021,12 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) playback = rtd->dai_link->dpcm_playback; capture = rtd->dai_link->dpcm_capture; } else { + /* Adapt stream for codec2codec links */ + struct snd_soc_pcm_stream *cpu_capture = rtd->dai_link->params ? + &cpu_dai->driver->playback : &cpu_dai->driver->capture; + struct snd_soc_pcm_stream *cpu_playback = rtd->dai_link->params ? + &cpu_dai->driver->capture : &cpu_dai->driver->playback; + for_each_rtd_codec_dai(rtd, i, codec_dai) { if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK)) @@ -3019,6 +3035,9 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE)) capture = 1; } + + capture = capture && cpu_capture->channels_min; + playback = playback && cpu_playback->channels_min; } if (rtd->dai_link->playback_only) { @@ -3032,7 +3051,13 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) } /* create the PCM */ - if (rtd->dai_link->no_pcm) { + if (rtd->dai_link->params) { + snprintf(new_name, sizeof(new_name), "codec2codec(%s)", + rtd->dai_link->stream_name); + + ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, + playback, capture, &pcm); + } else if (rtd->dai_link->no_pcm) { snprintf(new_name, sizeof(new_name), "(%s)", rtd->dai_link->stream_name); @@ -3059,13 +3084,17 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) dev_dbg(rtd->card->dev, "ASoC: registered pcm #%d %s\n",num, new_name); /* DAPM dai link stream work */ - INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); + if (rtd->dai_link->params) + INIT_DELAYED_WORK(&rtd->delayed_work, + codec2codec_close_delayed_work); + else + INIT_DELAYED_WORK(&rtd->delayed_work, close_delayed_work); pcm->nonatomic = rtd->dai_link->nonatomic; rtd->pcm = pcm; pcm->private_data = rtd; - if (rtd->dai_link->no_pcm) { + if (rtd->dai_link->no_pcm || rtd->dai_link->params) { if (playback) pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; if (capture) |