1 files changed, 61 insertions, 5 deletions

diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 8ad9dc901007..6f44cb4d30b8 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,          \