static int skl_pcm_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
struct skl *skl = get_skl_ctx(dai->dev);
unsigned int format_val;
int err;
struct skl_module_cfg *mconfig;
dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream);
format_val = skl_get_format(substream, dai);
dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d\n",
hdac_stream(stream)->stream_tag, format_val);
snd_hdac_stream_reset(hdac_stream(stream));
/* In case of XRUN recovery, reset the FW pipe to clean state */
if (mconfig && (substream->runtime->status->state ==
SNDRV_PCM_STATE_XRUN))
skl_reset_pipe(skl->skl_sst, mconfig->pipe);
err = snd_hdac_stream_set_params(hdac_stream(stream), format_val);
if (err < 0)
return err;
err = snd_hdac_stream_setup(hdac_stream(stream));
if (err < 0)
return err;
hdac_stream(stream)->prepared = 1;
return err;
}
static int skl_be_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct skl *skl = get_skl_ctx(dai->dev);
struct skl_sst *ctx = skl->skl_sst;
struct skl_module_cfg *mconfig;
if (dai->playback_widget->power || dai->capture_widget->power)
return 0;
mconfig = skl_tplg_be_get_cpr_module(dai, substream->stream);
if (mconfig == NULL)
return -EINVAL;
return skl_dsp_set_dma_control(ctx, mconfig);
}
static int skl_link_pcm_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
struct hdac_ext_stream *link_dev =
snd_soc_dai_get_dma_data(dai, substream);
unsigned int format_val = 0;
struct skl_dma_params *dma_params;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct hdac_ext_link *link;
struct skl *skl = get_skl_ctx(dai->dev);
struct skl_module_cfg *mconfig = NULL;
dma_params = (struct skl_dma_params *)
snd_soc_dai_get_dma_data(codec_dai, substream);
if (dma_params)
format_val = dma_params->format;
dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d codec_dai_name=%s\n",
hdac_stream(link_dev)->stream_tag, format_val, codec_dai->name);
link = snd_hdac_ext_bus_get_link(ebus, rtd->codec->component.name);
if (!link)
return -EINVAL;
snd_hdac_ext_link_stream_reset(link_dev);
/* In case of XRUN recovery, reset the FW pipe to clean state */
mconfig = skl_tplg_be_get_cpr_module(dai, substream->stream);
if (mconfig && (substream->runtime->status->state ==
SNDRV_PCM_STATE_XRUN))
skl_reset_pipe(skl->skl_sst, mconfig->pipe);
snd_hdac_ext_link_stream_setup(link_dev, format_val);
snd_hdac_ext_link_set_stream_id(link, hdac_stream(link_dev)->stream_tag);
link_dev->link_prepared = 1;
return 0;
}
static void skl_setup_cpr_gateway_cfg(struct skl_sst *ctx,
struct skl_module_cfg *mconfig,
struct skl_cpr_cfg *cpr_mconfig)
{
u32 dma_io_buf;
struct skl_module_res *res;
int res_idx = mconfig->res_idx;
struct skl *skl = get_skl_ctx(ctx->dev);
cpr_mconfig->gtw_cfg.node_id = skl_get_node_id(ctx, mconfig);
if (cpr_mconfig->gtw_cfg.node_id == SKL_NON_GATEWAY_CPR_NODE_ID) {
cpr_mconfig->cpr_feature_mask = 0;
return;
}
if (skl->nr_modules) {
res = &mconfig->module->resources[mconfig->res_idx];
cpr_mconfig->gtw_cfg.dma_buffer_size = res->dma_buffer_size;
goto skip_buf_size_calc;
} else {
res = &mconfig->module->resources[res_idx];
}
switch (mconfig->hw_conn_type) {
case SKL_CONN_SOURCE:
if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
dma_io_buf = res->ibs;
else
dma_io_buf = res->obs;
break;
case SKL_CONN_SINK:
if (mconfig->dev_type == SKL_DEVICE_HDAHOST)
dma_io_buf = res->obs;
else
dma_io_buf = res->ibs;
break;
default:
dev_warn(ctx->dev, "wrong connection type: %d\n",
mconfig->hw_conn_type);
return;
}
cpr_mconfig->gtw_cfg.dma_buffer_size =
mconfig->dma_buffer_size * dma_io_buf;
/* fallback to 2ms default value */
if (!cpr_mconfig->gtw_cfg.dma_buffer_size) {
if (mconfig->hw_conn_type == SKL_CONN_SOURCE)
cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * res->obs;
else
cpr_mconfig->gtw_cfg.dma_buffer_size = 2 * res->ibs;
}
skip_buf_size_calc:
cpr_mconfig->cpr_feature_mask = 0;
cpr_mconfig->gtw_cfg.config_length = 0;
skl_copy_copier_caps(mconfig, cpr_mconfig);
}
static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct skl *skl = get_skl_ctx(dai->dev);
struct skl_sst *ctx = skl->skl_sst;
struct skl_module_cfg *mconfig;
struct hdac_ext_bus *ebus = get_bus_ctx(substream);
struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
struct snd_soc_dapm_widget *w;
int ret;
mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream);
if (!mconfig)
return -EIO;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
w = dai->playback_widget;
else
w = dai->capture_widget;
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
if (!w->ignore_suspend) {
skl_pcm_prepare(substream, dai);
/*
* enable DMA Resume enable bit for the stream, set the
* dpib & lpib position to resume before starting the
* DMA
*/
snd_hdac_ext_stream_drsm_enable(ebus, true,
hdac_stream(stream)->index);
snd_hdac_ext_stream_set_dpibr(ebus, stream,
stream->dpib);
snd_hdac_ext_stream_set_lpib(stream, stream->lpib);
}
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
/*
* Start HOST DMA and Start FE Pipe.This is to make sure that
* there are no underrun/overrun in the case when the FE
* pipeline is started but there is a delay in starting the
* DMA channel on the host.
*/
snd_hdac_ext_stream_decouple(ebus, stream, true);
ret = skl_decoupled_trigger(substream, cmd);
if (ret < 0)
return ret;
return skl_run_pipe(ctx, mconfig->pipe);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_STOP:
/*
* Stop FE Pipe first and stop DMA. This is to make sure that
* there are no underrun/overrun in the case if there is a delay
* between the two operations.
*/
ret = skl_stop_pipe(ctx, mconfig->pipe);
if (ret < 0)
return ret;
ret = skl_decoupled_trigger(substream, cmd);
if ((cmd == SNDRV_PCM_TRIGGER_SUSPEND) && !w->ignore_suspend) {
/* save the dpib and lpib positions */
stream->dpib = readl(ebus->bus.remap_addr +
AZX_REG_VS_SDXDPIB_XBASE +
(AZX_REG_VS_SDXDPIB_XINTERVAL *
hdac_stream(stream)->index));
stream->lpib = snd_hdac_stream_get_pos_lpib(
hdac_stream(stream));
snd_hdac_ext_stream_decouple(ebus, stream, false);
}
break;
default:
return -EINVAL;
}
return 0;
}
