This patchs should allow to use 32-bit samples on e.g. TLV320AIC3x codec,
or others.
Signed-off-by: Sergey Lapin <slapin@xxxxxxxxxxx>
---
sound/soc/omap/omap-mcbsp.c | 28 ++++++++++++++++++++++++----
1 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 8ad9dc9..2dead3f 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -295,8 +295,18 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
omap_mcbsp_dai_dma_params[id][substream->stream].dma_req = dma;
omap_mcbsp_dai_dma_params[id][substream->stream].port_addr = port;
omap_mcbsp_dai_dma_params[id][substream->stream].sync_mode = sync_mode;
- omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
- OMAP_DMA_DATA_TYPE_S16;
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
+ OMAP_DMA_DATA_TYPE_S16;
+ break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ omap_mcbsp_dai_dma_params[id][substream->stream].data_type =
+ OMAP_DMA_DATA_TYPE_S32;
+ break;
+ default:
+ return -EINVAL;
+ }
snd_soc_dai_set_dma_data(cpu_dai, substream,
&omap_mcbsp_dai_dma_params[id][substream->stream]);
@@ -330,6 +340,14 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
regs->xcr2 |= XWDLEN2(OMAP_MCBSP_WORD_16);
regs->xcr1 |= XWDLEN1(OMAP_MCBSP_WORD_16);
break;
+ case SNDRV_PCM_FORMAT_S32_LE:
+ /* Set word lengths */
+ wlen = 32;
+ regs->rcr2 |= RWDLEN2(OMAP_MCBSP_WORD_32);
+ regs->rcr1 |= RWDLEN1(OMAP_MCBSP_WORD_32);
+ regs->xcr2 |= XWDLEN2(OMAP_MCBSP_WORD_32);
+ regs->xcr1 |= XWDLEN1(OMAP_MCBSP_WORD_32);
+ break;
default:
/* Unsupported PCM format */
return -EINVAL;
@@ -623,13 +641,15 @@ static struct snd_soc_dai_ops omap_mcbsp_dai_ops = {
.channels_min = 1, \
.channels_max = 16, \
.rates = OMAP_MCBSP_RATES, \
- .formats = SNDRV_PCM_FMTBIT_S16_LE, \
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE, \
}, \
.capture = { \
.channels_min = 1, \
.channels_max = 16, \
.rates = OMAP_MCBSP_RATES, \
- .formats = SNDRV_PCM_FMTBIT_S16_LE, \
+ .formats = SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE, \
}, \
.ops = &omap_mcbsp_dai_ops, \
.private_data = &mcbsp_data[(link_id)].bus_id, \
--
1.7.0.4
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