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ASoC: SOF: amd: Add pcm pointer callback for amd platforms.

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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>
This commit is contained in:
V sujith kumar Reddy 2023-03-08 14:15:08 +05:30 committed by Mark Brown
parent f1fbb6a266
commit df6380dca2
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 36 additions and 0 deletions
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1
sound/soc/sof/amd/acp-common.c
View File

@ -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 |

33
sound/soc/sof/amd/acp-pcm.c
View File

@ -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);

2
sound/soc/sof/amd/acp.h
View File

@ -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;