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authorMichal Bachraty <michal.bachraty@streamunlimited.com>2013-04-19 15:28:03 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-04-23 14:50:21 +0100
commit7c21a78104d7f2c155e2c12279282f659d773d05 (patch)
treed8fc167baff5147da84de35266535714550a27c4
parent5cbad7d39ad229c68a724e5e139fd845b93766b2 (diff)
ASoC: davinci-pcm, davinci-mcasp: Clean up active_serializers
As pointed of by Vaibhav, commit message: "ASoC: davinci-mcasp: Add support for multichannel playback" number of active serializers can be hidden into fifo_level variable, which is set in davimci-mcasp. Signed-off-by: Michal Bachraty <michal.bachraty@streamunlimited.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
-rw-r--r--sound/soc/davinci/davinci-mcasp.c8
-rw-r--r--sound/soc/davinci/davinci-pcm.c11
-rw-r--r--sound/soc/davinci/davinci-pcm.h1
3 files changed, 10 insertions, 10 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index aeb3a6627d6a..59143373afc6 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -834,17 +834,20 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
int word_length;
u8 fifo_level;
u8 slots = dev->tdm_slots;
+ u8 active_serializers;
int channels;
struct snd_interval *pcm_channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
channels = pcm_channels->min;
+ active_serializers = (channels + slots - 1) / slots;
+
if (davinci_hw_common_param(dev, substream->stream, channels) == -EINVAL)
return -EINVAL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- fifo_level = dev->txnumevt;
+ fifo_level = dev->txnumevt * active_serializers;
else
- fifo_level = dev->rxnumevt;
+ fifo_level = dev->rxnumevt * active_serializers;
if (dev->op_mode == DAVINCI_MCASP_DIT_MODE)
davinci_hw_dit_param(dev);
@@ -889,7 +892,6 @@ static int davinci_mcasp_hw_params(struct snd_pcm_substream *substream,
dma_params->acnt = dma_params->data_type;
dma_params->fifo_level = fifo_level;
- dma_params->active_serializers = (channels + slots - 1) / slots;
davinci_config_channel_size(dev, word_length);
return 0;
diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 078031d61167..b2f27c2e5fdc 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -181,7 +181,6 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream)
unsigned short acnt;
unsigned int count;
unsigned int fifo_level;
- unsigned char serializers = prtd->params->active_serializers;
period_size = snd_pcm_lib_period_bytes(substream);
dma_offset = prtd->period * period_size;
@@ -195,14 +194,14 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream)
data_type = prtd->params->data_type;
count = period_size / data_type;
if (fifo_level)
- count /= fifo_level * serializers;
+ count /= fifo_level;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
src = dma_pos;
dst = prtd->params->dma_addr;
src_bidx = data_type;
dst_bidx = 4;
- src_cidx = data_type * fifo_level * serializers;
+ src_cidx = data_type * fifo_level;
dst_cidx = 0;
} else {
src = prtd->params->dma_addr;
@@ -210,7 +209,7 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream)
src_bidx = 0;
dst_bidx = data_type;
src_cidx = 0;
- dst_cidx = data_type * fifo_level * serializers;
+ dst_cidx = data_type * fifo_level;
}
acnt = prtd->params->acnt;
@@ -225,8 +224,8 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream)
ASYNC);
else
edma_set_transfer_params(prtd->asp_link[0], acnt,
- fifo_level * serializers,
- count, fifo_level * serializers,
+ fifo_level,
+ count, fifo_level,
ABSYNC);
}
diff --git a/sound/soc/davinci/davinci-pcm.h b/sound/soc/davinci/davinci-pcm.h
index 32d7634d7b26..b6ef7039dd09 100644
--- a/sound/soc/davinci/davinci-pcm.h
+++ b/sound/soc/davinci/davinci-pcm.h
@@ -27,7 +27,6 @@ struct davinci_pcm_dma_params {
unsigned char data_type; /* xfer data type */
unsigned char convert_mono_stereo;
unsigned int fifo_level;
- unsigned char active_serializers; /* num. of active audio serializers */
};
int davinci_soc_platform_register(struct device *dev);