diff options
| author | V sujith kumar Reddy <Vsujithkumar.Reddy@amd.com> | 2023-03-08 11:45:08 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-03-08 18:05:43 +0300 |
| commit | df6380dca2727bca62efdf332eaadd2e225f7c4d (patch) | |
| tree | c5831ef64de9387a5ffbe39c88106df597ae4a03 | |
| parent | f1fbb6a2667e2bb21c281a0fa4edb1ac8d1d0ab0 (diff) | |
| download | linux-df6380dca2727bca62efdf332eaadd2e225f7c4d.tar.xz | |
ASoC: SOF: amd: Add pcm pointer callback for amd platforms.
Add pcm pointer callback for amd platforms to read host position
update from stream box.
Signed-off-by: V sujith kumar Reddy <Vsujithkumar.Reddy@amd.com>
Link: https://lore.kernel.org/r/20230308084509.1496256-2-Vsujithkumar.Reddy@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/sof/amd/acp-common.c | 1 | ||||
| -rw-r--r-- | sound/soc/sof/amd/acp-pcm.c | 33 | ||||
| -rw-r--r-- | sound/soc/sof/amd/acp.h | 2 |
3 files changed, 36 insertions, 0 deletions
diff --git a/sound/soc/sof/amd/acp-common.c b/sound/soc/sof/amd/acp-common.c index bd6c1b198736..8ce4c8956933 100644 --- a/sound/soc/sof/amd/acp-common.c +++ b/sound/soc/sof/amd/acp-common.c @@ -187,6 +187,7 @@ struct snd_sof_dsp_ops sof_acp_common_ops = { .pcm_open = acp_pcm_open, .pcm_close = acp_pcm_close, .pcm_hw_params = acp_pcm_hw_params, + .pcm_pointer = acp_pcm_pointer, .hw_info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | diff --git a/sound/soc/sof/amd/acp-pcm.c b/sound/soc/sof/amd/acp-pcm.c index 727c3a784a20..f342f0bac4a3 100644 --- a/sound/soc/sof/amd/acp-pcm.c +++ b/sound/soc/sof/amd/acp-pcm.c @@ -84,3 +84,36 @@ int acp_pcm_close(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) return acp_dsp_stream_put(sdev, stream); } EXPORT_SYMBOL_NS(acp_pcm_close, SND_SOC_SOF_AMD_COMMON); + +snd_pcm_uframes_t acp_pcm_pointer(struct snd_sof_dev *sdev, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_component *scomp = sdev->component; + struct snd_sof_pcm_stream *stream; + struct sof_ipc_stream_posn posn; + struct snd_sof_pcm *spcm; + snd_pcm_uframes_t pos; + int ret; + + spcm = snd_sof_find_spcm_dai(scomp, rtd); + if (!spcm) { + dev_warn_ratelimited(sdev->dev, "warn: can't find PCM with DAI ID %d\n", + rtd->dai_link->id); + return 0; + } + + stream = &spcm->stream[substream->stream]; + ret = snd_sof_ipc_msg_data(sdev, stream, &posn, sizeof(posn)); + if (ret < 0) { + dev_warn(sdev->dev, "failed to read stream position: %d\n", ret); + return 0; + } + + memcpy(&stream->posn, &posn, sizeof(posn)); + pos = spcm->stream[substream->stream].posn.host_posn; + pos = bytes_to_frames(substream->runtime, pos); + + return pos; +} +EXPORT_SYMBOL_NS(acp_pcm_pointer, SND_SOC_SOF_AMD_COMMON); diff --git a/sound/soc/sof/amd/acp.h b/sound/soc/sof/amd/acp.h index 39165ebf684b..acad57947616 100644 --- a/sound/soc/sof/amd/acp.h +++ b/sound/soc/sof/amd/acp.h @@ -238,6 +238,8 @@ int acp_pcm_close(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream) int acp_pcm_hw_params(struct snd_sof_dev *sdev, struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_sof_platform_stream_params *platform_params); +snd_pcm_uframes_t acp_pcm_pointer(struct snd_sof_dev *sdev, + struct snd_pcm_substream *substream); extern struct snd_sof_dsp_ops sof_acp_common_ops; |