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ASoC: SOF: ipc4-pcm: add hw_params

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Use the hw_params to init time info for ipc4 delay calculation.

Signed-off-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230202132954.26773-6-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Rander Wang 2023-02-02 15:29:50 +02:00 committed by Mark Brown
parent af74dbd0db
commit 7cb19007ba
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GPG Key ID: 24D68B725D5487D0
1 changed files with 98 additions and 0 deletions
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98
sound/soc/sof/ipc4-pcm.c
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@ -459,7 +459,105 @@ static int sof_ipc4_pcm_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm
return 0;
}
static void sof_ipc4_build_time_info(struct snd_sof_dev *sdev, struct snd_sof_pcm_stream *spcm)
{
struct sof_ipc4_copier *host_copier = NULL;
struct sof_ipc4_copier *dai_copier = NULL;
struct sof_ipc4_llp_reading_slot llp_slot;
struct sof_ipc4_timestamp_info *info;
struct snd_soc_dapm_widget *widget;
struct snd_sof_dai *dai;
int i;
/* find host & dai to locate info in memory window */
for_each_dapm_widgets(spcm->list, i, widget) {
struct snd_sof_widget *swidget = widget->dobj.private;
if (!swidget)
continue;
if (WIDGET_IS_AIF(swidget->widget->id)) {
host_copier = swidget->private;
} else if (WIDGET_IS_DAI(swidget->widget->id)) {
dai = swidget->private;
dai_copier = dai->private;
}
}
/* both host and dai copier must be valid for time_info */
if (!host_copier || !dai_copier) {
dev_err(sdev->dev, "host or dai copier are not found\n");
return;
}
info = spcm->private;
info->host_copier = host_copier;
info->dai_copier = dai_copier;
info->llp_offset = offsetof(struct sof_ipc4_fw_registers, llp_gpdma_reading_slots) +
sdev->fw_info_box.offset;
/* find llp slot used by current dai */
for (i = 0; i < SOF_IPC4_MAX_LLP_GPDMA_READING_SLOTS; i++) {
sof_mailbox_read(sdev, info->llp_offset, &llp_slot, sizeof(llp_slot));
if (llp_slot.node_id == dai_copier->data.gtw_cfg.node_id)
break;
info->llp_offset += sizeof(llp_slot);
}
if (i < SOF_IPC4_MAX_LLP_GPDMA_READING_SLOTS)
return;
/* if no llp gpdma slot is used, check aggregated sdw slot */
info->llp_offset = offsetof(struct sof_ipc4_fw_registers, llp_sndw_reading_slots) +
sdev->fw_info_box.offset;
for (i = 0; i < SOF_IPC4_MAX_LLP_SNDW_READING_SLOTS; i++) {
sof_mailbox_read(sdev, info->llp_offset, &llp_slot, sizeof(llp_slot));
if (llp_slot.node_id == dai_copier->data.gtw_cfg.node_id)
break;
info->llp_offset += sizeof(llp_slot);
}
if (i < SOF_IPC4_MAX_LLP_SNDW_READING_SLOTS)
return;
/* check EVAD slot */
info->llp_offset = offsetof(struct sof_ipc4_fw_registers, llp_evad_reading_slot) +
sdev->fw_info_box.offset;
sof_mailbox_read(sdev, info->llp_offset, &llp_slot, sizeof(llp_slot));
if (llp_slot.node_id != dai_copier->data.gtw_cfg.node_id) {
dev_info(sdev->dev, "no llp found, fall back to default HDA path");
info->llp_offset = 0;
}
}
static int sof_ipc4_pcm_hw_params(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_sof_platform_stream_params *platform_params)
{
struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct sof_ipc4_timestamp_info *time_info;
struct snd_sof_pcm *spcm;
spcm = snd_sof_find_spcm_dai(component, rtd);
time_info = spcm->stream[substream->stream].private;
/* delay calculation is not supported by current fw_reg ABI */
if (!time_info)
return 0;
time_info->stream_start_offset = SOF_IPC4_INVALID_STREAM_POSITION;
time_info->llp_offset = 0;
sof_ipc4_build_time_info(sdev, &spcm->stream[substream->stream]);
return 0;
}
const struct sof_ipc_pcm_ops ipc4_pcm_ops = {
.hw_params = sof_ipc4_pcm_hw_params,
.trigger = sof_ipc4_pcm_trigger,
.hw_free = sof_ipc4_pcm_hw_free,
.dai_link_fixup = sof_ipc4_pcm_dai_link_fixup,