From: Jeeja KP jeeja.kp@intel.com
In case of XRUN recovery PCM prepare will be called. In this case Host/Link DMAs are reset and reconfigured, hence the corresponding FE/BE pipe needs to be reset in order to get to a clean state.
Signed-off-by: Jeeja KP jeeja.kp@intel.com Signed-off-by: Vinod Koul vinod.koul@intel.com --- sound/soc/intel/skylake/skl-messages.c | 23 +++++++++++++++++++++++ sound/soc/intel/skylake/skl-pcm.c | 17 +++++++++++++++++ sound/soc/intel/skylake/skl-topology.h | 5 ++++- 3 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/skylake/skl-messages.c b/sound/soc/intel/skylake/skl-messages.c index 226db84..c682403 100644 --- a/sound/soc/intel/skylake/skl-messages.c +++ b/sound/soc/intel/skylake/skl-messages.c @@ -1130,6 +1130,29 @@ int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe) return 0; }
+/* + * Reset the pipeline by sending set pipe state IPC this will reset the DMA + * from the DSP side + */ +int skl_reset_pipe(struct skl_sst *ctx, struct skl_pipe *pipe) +{ + int ret; + + /* If pipe was not created in FW, do not try to pause or delete */ + if (pipe->state < SKL_PIPE_PAUSED) + return 0; + + ret = skl_set_pipe_state(ctx, pipe, PPL_RESET); + if (ret < 0) { + dev_dbg(ctx->dev, "Failed to reset pipe ret=%d\n", ret); + return ret; + } + + pipe->state = SKL_PIPE_RESET; + + return 0; +} + /* Algo parameter set helper function */ int skl_set_module_params(struct skl_sst *ctx, u32 *params, int size, u32 param_id, struct skl_module_cfg *mcfg) diff --git a/sound/soc/intel/skylake/skl-pcm.c b/sound/soc/intel/skylake/skl-pcm.c index 7c81b31..ff04917 100644 --- a/sound/soc/intel/skylake/skl-pcm.c +++ b/sound/soc/intel/skylake/skl-pcm.c @@ -227,16 +227,25 @@ 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; @@ -521,6 +530,8 @@ static int skl_link_pcm_prepare(struct snd_pcm_substream *substream, 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); @@ -535,6 +546,12 @@ static int skl_link_pcm_prepare(struct snd_pcm_substream *substream,
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); diff --git a/sound/soc/intel/skylake/skl-topology.h b/sound/soc/intel/skylake/skl-topology.h index e4b399c..d4a58bc 100644 --- a/sound/soc/intel/skylake/skl-topology.h +++ b/sound/soc/intel/skylake/skl-topology.h @@ -244,7 +244,8 @@ enum skl_pipe_state { SKL_PIPE_INVALID = 0, SKL_PIPE_CREATED = 1, SKL_PIPE_PAUSED = 2, - SKL_PIPE_STARTED = 3 + SKL_PIPE_STARTED = 3, + SKL_PIPE_RESET = 4 };
struct skl_pipe_module { @@ -357,6 +358,8 @@ int skl_delete_pipe(struct skl_sst *ctx, struct skl_pipe *pipe);
int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe);
+int skl_reset_pipe(struct skl_sst *ctx, struct skl_pipe *pipe); + int skl_init_module(struct skl_sst *ctx, struct skl_module_cfg *module_config);
int skl_bind_modules(struct skl_sst *ctx, struct skl_module_cfg