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ASoC: samsung: Provide helper for DMA init 

In preparation for using the dmaengine helpers in ASoC rather than the
dmaengine wrappers for the Samsung API wrap the configuration of dma_data.
The dmaengine code expects different data to that used by the legacy API.

Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Mark Brown 2013-10-19 15:23:15 +01:00
parent beaec3aab6
commit 3688569e81
5 changed files with 42 additions and 45 deletions
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51
sound/soc/samsung/ac97.c
View File

@ -221,24 +221,6 @@ static struct snd_ac97_bus_ops s3c_ac97_ops = {
.reset = s3c_ac97_cold_reset,
};
static int s3c_ac97_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct s3c_dma_params *dma_data;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dma_data = &s3c_ac97_pcm_out;
else
dma_data = &s3c_ac97_pcm_in;
snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
return 0;
}
static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
@ -279,21 +261,6 @@ static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
return 0;
}
static int s3c_ac97_hw_mic_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return -ENODEV;
else
snd_soc_dai_set_dma_data(cpu_dai, substream, &s3c_ac97_mic_in);
return 0;
}
static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
@ -329,15 +296,27 @@ static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
}
static const struct snd_soc_dai_ops s3c_ac97_dai_ops = {
.hw_params = s3c_ac97_hw_params,
.trigger = s3c_ac97_trigger,
};
static const struct snd_soc_dai_ops s3c_ac97_mic_dai_ops = {
.hw_params = s3c_ac97_hw_mic_params,
.trigger = s3c_ac97_mic_trigger,
};
static int s3c_ac97_dai_probe(struct snd_soc_dai *dai)
{
samsung_asoc_init_dma_data(dai, &s3c_ac97_pcm_out, &s3c_ac97_pcm_in);
return 0;
}
static int s3c_ac97_mic_dai_probe(struct snd_soc_dai *dai)
{
samsung_asoc_init_dma_data(dai, NULL, &s3c_ac97_mic_in);
return 0;
}
static struct snd_soc_dai_driver s3c_ac97_dai[] = {
[S3C_AC97_DAI_PCM] = {
.name = "samsung-ac97",
@ -354,6 +333,7 @@ static struct snd_soc_dai_driver s3c_ac97_dai[] = {
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.probe = s3c_ac97_dai_probe,
.ops = &s3c_ac97_dai_ops,
},
[S3C_AC97_DAI_MIC] = {
@ -365,6 +345,7 @@ static struct snd_soc_dai_driver s3c_ac97_dai[] = {
.channels_max = 1,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.probe = s3c_ac97_mic_dai_probe,
.ops = &s3c_ac97_mic_dai_ops,
},
};

8
sound/soc/samsung/dma.c
View File

@ -441,6 +441,14 @@ static struct snd_soc_platform_driver samsung_asoc_platform = {
.pcm_free = dma_free_dma_buffers,
};
void samsung_asoc_init_dma_data(struct snd_soc_dai *dai,
struct s3c_dma_params *playback,
struct s3c_dma_params *capture)
{
snd_soc_dai_init_dma_data(dai, playback, capture);
}
EXPORT_SYMBOL_GPL(samsung_asoc_init_dma_data);
int samsung_asoc_dma_platform_register(struct device *dev)
{
return snd_soc_register_platform(dev, &samsung_asoc_platform);

3
sound/soc/samsung/dma.h
View File

@ -22,6 +22,9 @@ struct s3c_dma_params {
char *ch_name;
};
void samsung_asoc_init_dma_data(struct snd_soc_dai *dai,
struct s3c_dma_params *playback,
struct s3c_dma_params *capture);
int samsung_asoc_dma_platform_register(struct device *dev);
void samsung_asoc_dma_platform_unregister(struct device *dev);

7
sound/soc/samsung/i2s.c
View File

@ -946,8 +946,11 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
struct i2s_dai *i2s = to_info(dai);
struct i2s_dai *other = i2s->pri_dai ? : i2s->sec_dai;
if (other && other->clk) /* If this is probe on secondary */
if (other && other->clk) { /* If this is probe on secondary */
samsung_asoc_init_dma_data(dai, &other->sec_dai->dma_playback,
NULL);
goto probe_exit;
}
i2s->addr = ioremap(i2s->base, 0x100);
if (i2s->addr == NULL) {
@ -963,7 +966,7 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
}
clk_prepare_enable(i2s->clk);
snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
samsung_asoc_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
if (other) {
other->addr = i2s->addr;

18
sound/soc/samsung/pcm.c
View File

@ -275,7 +275,6 @@ static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(rtd->cpu_dai);
struct s3c_dma_params *dma_data;
void __iomem *regs = pcm->regs;
struct clk *clk;
int sclk_div, sync_div;
@ -284,13 +283,6 @@ static int s3c_pcm_hw_params(struct snd_pcm_substream *substream,
dev_dbg(pcm->dev, "Entered %s\n", __func__);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dma_data = pcm->dma_playback;
else
dma_data = pcm->dma_capture;
snd_soc_dai_set_dma_data(rtd->cpu_dai, substream, dma_data);
/* Strictly check for sample size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
@ -461,10 +453,20 @@ static const struct snd_soc_dai_ops s3c_pcm_dai_ops = {
.set_fmt = s3c_pcm_set_fmt,
};
static int s3c_pcm_dai_probe(struct snd_soc_dai *dai)
{
struct s3c_pcm_info *pcm = snd_soc_dai_get_drvdata(dai);
snd_soc_dai_init_dma_data(dai, pcm->dma_playback, pcm->dma_capture);
return 0;
}
#define S3C_PCM_RATES SNDRV_PCM_RATE_8000_96000
#define S3C_PCM_DAI_DECLARE \
.symmetric_rates = 1, \
.probe = s3c_pcm_dai_probe, \
.ops = &s3c_pcm_dai_ops, \
.playback = { \
.channels_min = 2, \