ASoC: OMAP: data_type and sync_mode configurable in audio dma

[pandora-kernel.git] / sound / soc / omap / omap-pcm.c

diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 9db2770..825db38 100644 (file)
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -37,7 +37,8 @@ static const struct snd_pcm_hardware omap_pcm_hardware = {
                                  SNDRV_PCM_INFO_INTERLEAVED |
                                  SNDRV_PCM_INFO_PAUSE |
                                  SNDRV_PCM_INFO_RESUME,
-       .formats                = SNDRV_PCM_FMTBIT_S16_LE,
+       .formats                = SNDRV_PCM_FMTBIT_S16_LE |
+                                 SNDRV_PCM_FMTBIT_S32_LE,
        .period_bytes_min       = 32,
        .period_bytes_max       = 64 * 1024,
        .periods_min            = 2,
@@ -149,6 +150,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
        struct omap_runtime_data *prtd = runtime->private_data;
        struct omap_pcm_dma_data *dma_data = prtd->dma_data;
        struct omap_dma_channel_params dma_params;
+       int bytes;
 
        /* return if this is a bufferless transfer e.g.
         * codec <--> BT codec or GSM modem -- lg FIXME */
@@ -156,11 +158,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
                return 0;
 
        memset(&dma_params, 0, sizeof(dma_params));
-       /*
-        * Note: Regardless of interface data formats supported by OMAP McBSP
-        * or EAC blocks, internal representation is always fixed 16-bit/sample
-        */
-       dma_params.data_type                    = OMAP_DMA_DATA_TYPE_S16;
+       dma_params.data_type                    = dma_data->data_type;
        dma_params.trigger                      = dma_data->dma_req;
        dma_params.sync_mode                    = dma_data->sync_mode;
        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@@ -170,6 +168,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
                dma_params.src_start            = runtime->dma_addr;
                dma_params.dst_start            = dma_data->port_addr;
                dma_params.dst_port             = OMAP_DMA_PORT_MPUI;
+               dma_params.dst_fi               = dma_data->packet_size;
        } else {
                dma_params.src_amode            = OMAP_DMA_AMODE_CONSTANT;
                dma_params.dst_amode            = OMAP_DMA_AMODE_POST_INC;
@@ -177,6 +176,7 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
                dma_params.src_start            = dma_data->port_addr;
                dma_params.dst_start            = runtime->dma_addr;
                dma_params.src_port             = OMAP_DMA_PORT_MPUI;
+               dma_params.src_fi               = dma_data->packet_size;
        }
        /*
         * Set DMA transfer frame size equal to ALSA period size and frame
@@ -184,7 +184,8 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
         * we can transfer the whole ALSA buffer with single DMA transfer but
         * still can get an interrupt at each period bounary
         */
-       dma_params.elem_count   = snd_pcm_lib_period_bytes(substream) / 2;
+       bytes = snd_pcm_lib_period_bytes(substream);
+       dma_params.elem_count   = bytes >> dma_data->data_type;
        dma_params.frame_count  = runtime->periods;
        omap_set_dma_params(prtd->dma_ch, &dma_params);