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ASoC: SOF: ipc4-topology: Store the params change between input/output of a module

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Based on the input and output formats we can evaluate what param might be
changed by the module instance.
If there is a difference between the input rate/channels/format and the
output  rate/channels/format it means that the module can change one or
multiple of the params.

Store this information during init for later use.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Link: https://patch.msgid.link/20260730121729.18673-2-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Peter Ujfalusi 2026-07-30 15:17:27 +03:00 committed by Mark Brown
parent 075b74841b
commit b843df0950
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 44 additions and 0 deletions
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41
sound/soc/sof/ipc4-topology.c
View File

@ -406,6 +406,39 @@ sof_ipc4_get_input_pin_audio_fmt(struct snd_sof_widget *swidget, int pin_index)
return NULL;
}
static void
sof_ipc4_evaluate_params_change(struct sof_ipc4_available_audio_format *available_fmt)
{
struct sof_ipc4_audio_format *fmt;
u32 in_rate, in_channels, in_valid_bits;
u32 out_rate, out_channels, out_valid_bits;
u32 changed_params = 0;
int i, j;
for (i = 0; i < available_fmt->num_input_formats; i++) {
fmt = &available_fmt->input_pin_fmts[i].audio_fmt;
in_rate = fmt->sampling_frequency;
in_channels = SOF_IPC4_AUDIO_FORMAT_CFG_CHANNELS_COUNT(fmt->fmt_cfg);
in_valid_bits = SOF_IPC4_AUDIO_FORMAT_CFG_V_BIT_DEPTH(fmt->fmt_cfg);
for (j = 0; j < available_fmt->num_output_formats; j++) {
fmt = &available_fmt->output_pin_fmts[j].audio_fmt;
out_rate = fmt->sampling_frequency;
out_channels = SOF_IPC4_AUDIO_FORMAT_CFG_CHANNELS_COUNT(fmt->fmt_cfg);
out_valid_bits = SOF_IPC4_AUDIO_FORMAT_CFG_V_BIT_DEPTH(fmt->fmt_cfg);
if (in_rate != out_rate)
changed_params |= BIT(SNDRV_PCM_HW_PARAM_RATE);
if (in_channels != out_channels)
changed_params |= BIT(SNDRV_PCM_HW_PARAM_CHANNELS);
if (in_valid_bits != out_valid_bits)
changed_params |= BIT(SNDRV_PCM_HW_PARAM_FORMAT);
}
}
available_fmt->changed_params = changed_params;
}
/**
* sof_ipc4_get_audio_fmt - get available audio formats from swidget->tuples
* @scomp: pointer to pointer to SOC component
@ -497,6 +530,8 @@ static int sof_ipc4_get_audio_fmt(struct snd_soc_component *scomp,
available_fmt->num_output_formats);
}
sof_ipc4_evaluate_params_change(available_fmt);
return 0;
err_out:
@ -661,6 +696,9 @@ static int sof_ipc4_widget_setup_pcm(struct snd_sof_widget *swidget)
if (ret)
goto free_copier;
/* Copier can only change format */
available_fmt->changed_params &= BIT(SNDRV_PCM_HW_PARAM_FORMAT);
/*
* This callback is used by host copier and module-to-module copier,
* and only host copier needs to set gtw_cfg.
@ -789,6 +827,9 @@ static int sof_ipc4_widget_setup_comp_dai(struct snd_sof_widget *swidget)
if (ret)
goto free_copier;
/* Copier can only change format */
available_fmt->changed_params &= BIT(SNDRV_PCM_HW_PARAM_FORMAT);
ret = sof_update_ipc_object(scomp, &node_type,
SOF_COPIER_TOKENS, swidget->tuples,
swidget->num_tuples, sizeof(node_type), 1);

3
sound/soc/sof/ipc4-topology.h
View File

@ -197,12 +197,15 @@ struct sof_ipc4_pin_format {
* @input_pin_fmts: Available input pin formats
* @num_input_formats: Number of input pin formats
* @num_output_formats: Number of output pin formats
* @changed_params: Mask of changed params by the module instance between it's
* input and output formts (rate, channels, depth)
*/
struct sof_ipc4_available_audio_format {
struct sof_ipc4_pin_format *output_pin_fmts;
struct sof_ipc4_pin_format *input_pin_fmts;
u32 num_input_formats;
u32 num_output_formats;
u32 changed_params;
};
/**