diff options
| author | Joonyoung Shim <jy0922.shim@samsung.com> | 2009-04-22 05:56:50 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-04-22 19:57:18 +0400 |
| commit | 1b4246a1fc487370665bf6c55aac8eae379642c0 (patch) | |
| tree | 2ec4cbc96af1cfc57859bcb900503669fc4d877e /sound/soc/omap/omap-pcm.c | |
| parent | b75576d76d4be50196773f36709cb7a4f5ac2ab7 (diff) | |
| download | linux-1b4246a1fc487370665bf6c55aac8eae379642c0.tar.xz | |
ASoC: OMAP: Add checking to detect bufferless pcms
Add checking in hw_params and prepare to detect bufferless pcms(i.e. BT
<--> codec).
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/omap/omap-pcm.c')
| -rw-r--r-- | sound/soc/omap/omap-pcm.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c index 07cf7f46b584..6454e15f7d28 100644 --- a/sound/soc/omap/omap-pcm.c +++ b/sound/soc/omap/omap-pcm.c @@ -87,8 +87,10 @@ static int omap_pcm_hw_params(struct snd_pcm_substream *substream, struct omap_pcm_dma_data *dma_data = rtd->dai->cpu_dai->dma_data; int err = 0; + /* return if this is a bufferless transfer e.g. + * codec <--> BT codec or GSM modem -- lg FIXME */ if (!dma_data) - return -ENODEV; + return 0; snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); runtime->dma_bytes = params_buffer_bytes(params); @@ -134,6 +136,11 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream) struct omap_pcm_dma_data *dma_data = prtd->dma_data; struct omap_dma_channel_params dma_params; + /* return if this is a bufferless transfer e.g. + * codec <--> BT codec or GSM modem -- lg FIXME */ + if (!prtd->dma_data) + return 0; + memset(&dma_params, 0, sizeof(dma_params)); /* * Note: Regardless of interface data formats supported by OMAP McBSP |