diff options
| author | Troy Kisky <troy.kisky@boundarydevices.com> | 2009-07-05 04:29:59 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-07-05 14:14:35 +0200 |
| commit | af0adf3e81dbcf782388b8a7d0d7094ef5e70f50 (patch) | |
| tree | 63fe365b1b360ca38c1824a66ebba5d1209a58ea /sound/soc/davinci/davinci-i2s.c | |
| parent | ASoC: DaVinci: i2s, fix mcbsp_word_length update (diff) | |
| download | linux-af0adf3e81dbcf782388b8a7d0d7094ef5e70f50.tar.xz linux-af0adf3e81dbcf782388b8a7d0d7094ef5e70f50.zip | |
ASoC: DaVinci: i2s, add davinci_i2s_prepare and shutdown
If the codec is master then prepare should call
mcbsp_start, not trigger.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/davinci/davinci-i2s.c')
| -rw-r--r-- | sound/soc/davinci/davinci-i2s.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c index 6fa1b6aebc30..88ccef79a5eb 100644 --- a/sound/soc/davinci/davinci-i2s.c +++ b/sound/soc/davinci/davinci-i2s.c @@ -420,6 +420,20 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream, return 0; } +static int davinci_i2s_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct davinci_mcbsp_dev *dev = rtd->dai->cpu_dai->private_data; + int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); + davinci_mcbsp_stop(dev, playback); + if ((dev->pcr & DAVINCI_MCBSP_PCR_FSXM) == 0) { + /* codec is master */ + davinci_mcbsp_start(dev, substream); + } + return 0; +} + static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { @@ -427,6 +441,8 @@ static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd, struct davinci_mcbsp_dev *dev = rtd->dai->cpu_dai->private_data; int ret = 0; int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); + if ((dev->pcr & DAVINCI_MCBSP_PCR_FSXM) == 0) + return 0; /* return if codec is master */ switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -442,10 +458,18 @@ static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd, default: ret = -EINVAL; } - return ret; } +static void davinci_i2s_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct davinci_mcbsp_dev *dev = rtd->dai->cpu_dai->private_data; + int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); + davinci_mcbsp_stop(dev, playback); +} + static int davinci_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *dai) { @@ -531,6 +555,8 @@ static void davinci_i2s_remove(struct platform_device *pdev, static struct snd_soc_dai_ops davinci_i2s_dai_ops = { .startup = davinci_i2s_startup, + .shutdown = davinci_i2s_shutdown, + .prepare = davinci_i2s_prepare, .trigger = davinci_i2s_trigger, .hw_params = davinci_i2s_hw_params, .set_fmt = davinci_i2s_set_dai_fmt, |