[alsa-devel] [PATCH 02/12] ASoC: Intel: Skylake: Configure DMA in PRE_PMD handler of Mixer
jeeja.kp at intel.com
jeeja.kp at intel.com
Fri Dec 2 18:41:39 CET 2016
From: Jeeja KP <jeeja.kp at intel.com>
If system is suspended when PCM was paused/stopped, restart doesn't
configure DMA as it is we are in Pause state and results in IO error
eventually.
Configure host/link DMA before initializing DSP Gateway copier module
instead of DAI prepare(). So moved DMA configuration to mixer PRE_PMD
widget handler instead of DAI prepare.
This uses previously added new API to do the configuration and removes
old DAI prepare code.
Signed-off-by: Jeeja KP <jeeja.kp at intel.com>
---
sound/soc/intel/skylake/skl-pcm.c | 50 +---------------------------------
sound/soc/intel/skylake/skl-topology.c | 19 +++++++++++++
2 files changed, 20 insertions(+), 49 deletions(-)
diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c
index 8a7b6f7..1abff8e 100644
--- a/sound/soc/intel/skylake/skl-pcm.c
+++ b/sound/soc/intel/skylake/skl-pcm.c
@@ -305,37 +305,19 @@ static int skl_be_prepare(struct snd_pcm_substream *substream,
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;
+ return 0;
}
static int skl_pcm_hw_params(struct snd_pcm_substream *substream,
@@ -510,7 +492,6 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
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
@@ -531,7 +512,6 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
* 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;
@@ -613,41 +593,15 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream,
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;
}
@@ -662,10 +616,8 @@ static int skl_link_pcm_trigger(struct snd_pcm_substream *substream,
dev_dbg(dai->dev, "In %s cmd=%d\n", __func__, cmd);
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
- skl_link_pcm_prepare(substream, dai);
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- snd_hdac_ext_stream_decouple(ebus, stream, true);
snd_hdac_ext_link_stream_start(link_dev);
break;
diff --git a/sound/soc/intel/skylake/skl-topology.c b/sound/soc/intel/skylake/skl-topology.c
index 484d451..9cf8c51 100644
--- a/sound/soc/intel/skylake/skl-topology.c
+++ b/sound/soc/intel/skylake/skl-topology.c
@@ -496,6 +496,20 @@ static int skl_tplg_set_module_init_data(struct snd_soc_dapm_widget *w)
return 0;
}
+static int skl_tplg_module_prepare(struct skl_sst *ctx, struct skl_pipe *pipe,
+ struct snd_soc_dapm_widget *w, struct skl_module_cfg *mcfg)
+{
+ switch (mcfg->dev_type) {
+ case SKL_DEVICE_HDAHOST:
+ return skl_pcm_host_dma_prepare(ctx->dev, pipe->p_params);
+
+ case SKL_DEVICE_HDALINK:
+ return skl_pcm_link_dma_prepare(ctx->dev, pipe->p_params);
+ }
+
+ return 0;
+}
+
/*
* Inside a pipe instance, we can have various modules. These modules need
* to instantiated in DSP by invoking INIT_MODULE IPC, which is achieved by
@@ -535,6 +549,11 @@ skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
mconfig->m_state = SKL_MODULE_LOADED;
}
+ /* prepare the DMA if the module is gateway cpr */
+ ret = skl_tplg_module_prepare(ctx, pipe, w, mconfig);
+ if (ret < 0)
+ return ret;
+
/* update blob if blob is null for be with default value */
skl_tplg_update_be_blob(w, ctx);
--
2.5.0
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