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ASoC: amd: add acp3x i2s ops 

ACP3x has a i2s controller block for playback and capture.
This patch adds ACP3x i2s DAI operations.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Tested-by: Ravulapati Vishnu vardhan Rao <Vishnuvardhanrao.Ravulapati@amd.com>
Signed-off-by: Vijendar Mukunda <vijendar.mukunda@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2018-11-12 11:04:58 +05:30 committed by Mark Brown
parent 0b87d6bcd6
commit 2b5f290e10
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 86 additions and 3 deletions
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89
sound/soc/amd/raven/acp3x-pcm-dma.c
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@ -423,10 +423,93 @@ static struct snd_pcm_ops acp3x_dma_ops = {
.mmap = acp3x_dma_mmap,
};
static int acp3x_dai_i2s_hwparams(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
u32 val = 0;
struct i2s_stream_instance *rtd = substream->runtime->private_data;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_U8:
case SNDRV_PCM_FORMAT_S8:
rtd->xfer_resolution = 0x0;
break;
case SNDRV_PCM_FORMAT_S16_LE:
rtd->xfer_resolution = 0x02;
break;
case SNDRV_PCM_FORMAT_S24_LE:
rtd->xfer_resolution = 0x04;
break;
case SNDRV_PCM_FORMAT_S32_LE:
rtd->xfer_resolution = 0x05;
break;
default:
return -EINVAL;
}
val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
val = val | (rtd->xfer_resolution << 3);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
else
rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
return 0;
}
static int acp3x_dai_i2s_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
int ret = 0;
struct i2s_stream_instance *rtd = substream->runtime->private_data;
u32 val, period_bytes;
period_bytes = frames_to_bytes(substream->runtime,
substream->runtime->period_size);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
rv_writel(period_bytes, rtd->acp3x_base +
mmACP_BT_TX_INTR_WATERMARK_SIZE);
val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
val = val | BIT(0);
rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
} else {
rv_writel(period_bytes, rtd->acp3x_base +
mmACP_BT_RX_INTR_WATERMARK_SIZE);
val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
val = val | BIT(0);
rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
}
rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
val = val & ~BIT(0);
rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
} else {
val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
val = val & ~BIT(0);
rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
}
rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
struct snd_soc_dai_ops acp3x_dai_i2s_ops = {
.hw_params = NULL,
.trigger = NULL,
.set_fmt = NULL,
.hw_params = acp3x_dai_i2s_hwparams,
.trigger = acp3x_dai_i2s_trigger,
};
static struct snd_soc_dai_driver acp3x_i2s_dai_driver = {