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Commit 1b4246a1 authored by Joonyoung Shim's avatar Joonyoung Shim Committed by Mark Brown
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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: default avatarJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent b75576d7

sound/soc/omap/omap-pcm.c

+8 −1
Original line number Diff line number Diff line
@@ -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