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path: root/sound/soc/omap/omap-mcbsp.c
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Diffstat (limited to 'sound/soc/omap/omap-mcbsp.c')
-rw-r--r--sound/soc/omap/omap-mcbsp.c66
1 files changed, 61 insertions, 5 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 8ad9dc90100..6f44cb4d30b 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -256,6 +256,31 @@ static int omap_mcbsp_dai_trigger(struct snd_pcm_substream *substream, int cmd,
return err;
}
+static snd_pcm_sframes_t omap_mcbsp_dai_delay(
+ struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ struct omap_mcbsp_data *mcbsp_data = to_mcbsp(cpu_dai->private_data);
+ u16 fifo_use;
+ snd_pcm_sframes_t delay;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ fifo_use = omap_mcbsp_get_tx_delay(mcbsp_data->bus_id);
+ else
+ fifo_use = omap_mcbsp_get_rx_delay(mcbsp_data->bus_id);
+
+ /*
+ * Divide the used locations with the channel count to get the
+ * FIFO usage in samples (don't care about partial samples in the
+ * buffer).
+ */
+ delay = fifo_use / substream->runtime->channels;
+
+ return delay;
+}
+
static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -295,8 +320,18 @@ 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]);
@@ -308,7 +343,8 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
wpf = channels = params_channels(params);
- if (channels == 2 && format == SND_SOC_DAIFMT_I2S) {
+ if (channels == 2 && (format == SND_SOC_DAIFMT_I2S ||
+ format == SND_SOC_DAIFMT_LEFT_J)) {
/* Use dual-phase frames */
regs->rcr2 |= RPHASE;
regs->xcr2 |= XPHASE;
@@ -330,6 +366,14 @@ 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;
@@ -353,6 +397,7 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
/* Set FS period and length in terms of bit clock periods */
switch (format) {
case SND_SOC_DAIFMT_I2S:
+ case SND_SOC_DAIFMT_LEFT_J:
regs->srgr2 |= FPER(framesize - 1);
regs->srgr1 |= FWID((framesize >> 1) - 1);
break;
@@ -404,6 +449,14 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
regs->rcr2 |= RDATDLY(1);
regs->xcr2 |= XDATDLY(1);
break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ /* 0-bit data delay */
+ regs->rcr2 |= RDATDLY(0);
+ regs->xcr2 |= XDATDLY(0);
+ regs->spcr1 |= RJUST(2);
+ /* Invert FS polarity configuration */
+ temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ break;
case SND_SOC_DAIFMT_DSP_A:
/* 1-bit data delay */
regs->rcr2 |= RDATDLY(1);
@@ -609,6 +662,7 @@ static struct snd_soc_dai_ops omap_mcbsp_dai_ops = {
.startup = omap_mcbsp_dai_startup,
.shutdown = omap_mcbsp_dai_shutdown,
.trigger = omap_mcbsp_dai_trigger,
+ .delay = omap_mcbsp_dai_delay,
.hw_params = omap_mcbsp_dai_hw_params,
.set_fmt = omap_mcbsp_dai_set_dai_fmt,
.set_clkdiv = omap_mcbsp_dai_set_clkdiv,
@@ -623,13 +677,15 @@ 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, \