From: Peter Ujfalusi peter.ujfalusi@linux.intel.com
Each running audio stream's data have distinct start offset within the stream mailbox area from/to where the host can read/write.
Instead of using the struct sof_ipc_pcm_params_reply to configure this offset, add an optional callback which is IPC agnostic.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Reviewed-by: Rander Wang rander.wang@intel.com Reviewed-by: Daniel Baluta daniel.baluta@nxp.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- sound/soc/sof/ops.h | 13 +++++++++++++ sound/soc/sof/pcm.c | 8 ++++++++ sound/soc/sof/sof-priv.h | 5 +++++ 3 files changed, 26 insertions(+)
diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h index 98fa91f5927d..f21d4a7ac261 100644 --- a/sound/soc/sof/ops.h +++ b/sound/soc/sof/ops.h @@ -476,6 +476,19 @@ snd_sof_ipc_pcm_params(struct snd_sof_dev *sdev, return sof_ops(sdev)->ipc_pcm_params(sdev, substream, reply); }
+/* host side configuration of the stream's data offset in stream mailbox area */ +static inline int +snd_sof_set_stream_data_offset(struct snd_sof_dev *sdev, + struct snd_pcm_substream *substream, + size_t posn_offset) +{ + if (sof_ops(sdev) && sof_ops(sdev)->set_stream_data_offset) + return sof_ops(sdev)->set_stream_data_offset(sdev, substream, + posn_offset); + + return 0; +} + /* host stream pointer */ static inline snd_pcm_uframes_t snd_sof_pcm_platform_pointer(struct snd_sof_dev *sdev, diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c index 93989a77873a..af8c367cd55c 100644 --- a/sound/soc/sof/pcm.c +++ b/sound/soc/sof/pcm.c @@ -276,6 +276,14 @@ static int sof_pcm_hw_params(struct snd_soc_component *component, return ret; }
+ ret = snd_sof_set_stream_data_offset(sdev, substream, + ipc_params_reply.posn_offset); + if (ret < 0) { + dev_err(component->dev, "%s: invalid stream data offset for PCM %d\n", + __func__, spcm->pcm.pcm_id); + return ret; + } + spcm->prepared[substream->stream] = true;
/* save pcm hw_params */ diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index 3c50defcfb25..3a2804c82bae 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -226,6 +226,11 @@ struct snd_sof_dsp_ops { struct snd_pcm_substream *substream, const struct sof_ipc_pcm_params_reply *reply); /* mandatory */
+ /* host side configuration of the stream's data offset in stream mailbox area */ + int (*set_stream_data_offset)(struct snd_sof_dev *sdev, + struct snd_pcm_substream *substream, + size_t posn_offset); /* optional */ + /* pre/post firmware run */ int (*pre_fw_run)(struct snd_sof_dev *sof_dev); /* optional */ int (*post_fw_run)(struct snd_sof_dev *sof_dev); /* optional */