235 lines
		
	
	
		
			6.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			235 lines
		
	
	
		
			6.5 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
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| //
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| // This file is provided under a dual BSD/GPLv2 license.  When using or
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| // redistributing this file, you may do so under either license.
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| //
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| // Copyright(c) 2022 Intel Corporation. All rights reserved.
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| //
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| 
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| #include <sound/pcm_params.h>
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| #include <sound/sof/ipc4/header.h>
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| #include "sof-audio.h"
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| #include "sof-priv.h"
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| #include "ipc4-priv.h"
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| #include "ipc4-topology.h"
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| 
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| int sof_ipc4_set_pipeline_state(struct snd_sof_dev *sdev, u32 id, u32 state)
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| {
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| 	struct sof_ipc4_msg msg = {{ 0 }};
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| 	u32 primary;
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| 
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| 	dev_dbg(sdev->dev, "ipc4 set pipeline %d state %d", id, state);
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| 
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| 	primary = state;
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| 	primary |= SOF_IPC4_GLB_PIPE_STATE_ID(id);
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| 	primary |= SOF_IPC4_MSG_TYPE_SET(SOF_IPC4_GLB_SET_PIPELINE_STATE);
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| 	primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);
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| 	primary |= SOF_IPC4_MSG_TARGET(SOF_IPC4_FW_GEN_MSG);
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| 
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| 	msg.primary = primary;
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| 
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| 	return sof_ipc_tx_message(sdev->ipc, &msg, 0, NULL, 0);
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| }
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| EXPORT_SYMBOL(sof_ipc4_set_pipeline_state);
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| 
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| static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component,
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| 				      struct snd_pcm_substream *substream, int state)
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| {
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| 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
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| 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
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| 	struct snd_sof_widget *pipeline_widget;
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| 	struct snd_soc_dapm_widget_list *list;
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| 	struct snd_soc_dapm_widget *widget;
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| 	struct sof_ipc4_pipeline *pipeline;
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| 	struct snd_sof_widget *swidget;
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| 	struct snd_sof_pcm *spcm;
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| 	int ret = 0;
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| 	int num_widgets;
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| 
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| 	spcm = snd_sof_find_spcm_dai(component, rtd);
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| 	if (!spcm)
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| 		return -EINVAL;
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| 
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| 	list = spcm->stream[substream->stream].list;
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| 
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| 	for_each_dapm_widgets(list, num_widgets, widget) {
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| 		swidget = widget->dobj.private;
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| 
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| 		if (!swidget)
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| 			continue;
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| 
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| 		/*
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| 		 * set pipeline state for both FE and BE pipelines for RUNNING state.
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| 		 * For PAUSE/RESET, set the pipeline state only for the FE pipeline.
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| 		 */
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| 		switch (state) {
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| 		case SOF_IPC4_PIPE_PAUSED:
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| 		case SOF_IPC4_PIPE_RESET:
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| 			if (!WIDGET_IS_AIF(swidget->id))
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| 				continue;
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| 			break;
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| 		default:
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| 			break;
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| 		}
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| 
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| 		/* find pipeline widget for the pipeline that this widget belongs to */
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| 		pipeline_widget = swidget->pipe_widget;
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| 		pipeline = (struct sof_ipc4_pipeline *)pipeline_widget->private;
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| 
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| 		if (pipeline->state == state)
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| 			continue;
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| 
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| 		/* first set the pipeline to PAUSED state */
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| 		if (pipeline->state != SOF_IPC4_PIPE_PAUSED) {
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| 			ret = sof_ipc4_set_pipeline_state(sdev, swidget->pipeline_id,
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| 							  SOF_IPC4_PIPE_PAUSED);
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| 			if (ret < 0) {
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| 				dev_err(sdev->dev, "failed to pause pipeline %d\n",
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| 					swidget->pipeline_id);
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| 				return ret;
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| 			}
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| 		}
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| 
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| 		pipeline->state = SOF_IPC4_PIPE_PAUSED;
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| 
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| 		if (pipeline->state == state)
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| 			continue;
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| 
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| 		/* then set the final state */
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| 		ret = sof_ipc4_set_pipeline_state(sdev, swidget->pipeline_id, state);
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| 		if (ret < 0) {
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| 			dev_err(sdev->dev, "failed to set state %d for pipeline %d\n",
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| 				state, swidget->pipeline_id);
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| 			break;
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| 		}
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| 
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| 		pipeline->state = state;
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| 	}
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| 
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| 	return ret;
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| }
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| 
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| static int sof_ipc4_pcm_trigger(struct snd_soc_component *component,
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| 				struct snd_pcm_substream *substream, int cmd)
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| {
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| 	int state;
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| 
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| 	/* determine the pipeline state */
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| 	switch (cmd) {
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| 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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| 		state = SOF_IPC4_PIPE_PAUSED;
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| 		break;
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| 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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| 	case SNDRV_PCM_TRIGGER_RESUME:
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| 	case SNDRV_PCM_TRIGGER_START:
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| 		state = SOF_IPC4_PIPE_RUNNING;
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| 		break;
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| 	case SNDRV_PCM_TRIGGER_SUSPEND:
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| 	case SNDRV_PCM_TRIGGER_STOP:
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| 		state = SOF_IPC4_PIPE_PAUSED;
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| 		break;
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| 	default:
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| 		dev_err(component->dev, "%s: unhandled trigger cmd %d\n", __func__, cmd);
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| 		return -EINVAL;
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| 	}
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| 
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| 	/* set the pipeline state */
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| 	return sof_ipc4_trigger_pipelines(component, substream, state);
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| }
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| 
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| static int sof_ipc4_pcm_hw_free(struct snd_soc_component *component,
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| 				struct snd_pcm_substream *substream)
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| {
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| 	return sof_ipc4_trigger_pipelines(component, substream, SOF_IPC4_PIPE_RESET);
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| }
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| 
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| static void ipc4_ssp_dai_config_pcm_params_match(struct snd_sof_dev *sdev, const char *link_name,
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| 						 struct snd_pcm_hw_params *params)
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| {
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| 	struct snd_sof_dai_link *slink;
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| 	struct snd_sof_dai *dai;
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| 	bool dai_link_found = false;
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| 	int i;
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| 
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| 	list_for_each_entry(slink, &sdev->dai_link_list, list) {
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| 		if (!strcmp(slink->link->name, link_name)) {
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| 			dai_link_found = true;
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| 			break;
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| 		}
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| 	}
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| 
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| 	if (!dai_link_found)
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| 		return;
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| 
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| 	for (i = 0; i < slink->num_hw_configs; i++) {
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| 		struct snd_soc_tplg_hw_config *hw_config = &slink->hw_configs[i];
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| 
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| 		if (params_rate(params) == le32_to_cpu(hw_config->fsync_rate)) {
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| 			/* set current config for all DAI's with matching name */
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| 			list_for_each_entry(dai, &sdev->dai_list, list)
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| 				if (!strcmp(slink->link->name, dai->name))
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| 					dai->current_config = le32_to_cpu(hw_config->id);
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| 			break;
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| 		}
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| 	}
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| }
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| 
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| static int sof_ipc4_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
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| 				       struct snd_pcm_hw_params *params)
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| {
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| 	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
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| 	struct snd_sof_dai *dai = snd_sof_find_dai(component, rtd->dai_link->name);
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| 	struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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| 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
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| 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
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| 	struct sof_ipc4_copier *ipc4_copier;
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| 	struct snd_soc_dpcm *dpcm;
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| 
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| 	if (!dai) {
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| 		dev_err(component->dev, "%s: No DAI found with name %s\n", __func__,
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| 			rtd->dai_link->name);
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| 		return -EINVAL;
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| 	}
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| 
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| 	ipc4_copier = dai->private;
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| 	if (!ipc4_copier) {
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| 		dev_err(component->dev, "%s: No private data found for DAI %s\n",
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| 			__func__, rtd->dai_link->name);
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| 		return -EINVAL;
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| 	}
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| 
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| 	/* always set BE format to 32-bits for both playback and capture */
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| 	snd_mask_none(fmt);
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| 	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S32_LE);
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| 
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| 	rate->min = ipc4_copier->available_fmt.base_config->audio_fmt.sampling_frequency;
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| 	rate->max = rate->min;
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| 
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| 	/*
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| 	 * Set trigger order for capture to SND_SOC_DPCM_TRIGGER_PRE. This is required
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| 	 * to ensure that the BE DAI pipeline gets stopped/suspended before the FE DAI
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| 	 * pipeline gets triggered and the pipeline widgets are freed.
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| 	 */
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| 	for_each_dpcm_fe(rtd, SNDRV_PCM_STREAM_CAPTURE, dpcm) {
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| 		struct snd_soc_pcm_runtime *fe = dpcm->fe;
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| 
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| 		fe->dai_link->trigger[SNDRV_PCM_STREAM_CAPTURE] = SND_SOC_DPCM_TRIGGER_PRE;
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| 	}
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| 
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| 	switch (ipc4_copier->dai_type) {
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| 	case SOF_DAI_INTEL_SSP:
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| 		ipc4_ssp_dai_config_pcm_params_match(sdev, (char *)rtd->dai_link->name, params);
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| 		break;
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| 	default:
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| 		break;
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| 	}
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| 
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| 	return 0;
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| }
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| 
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| const struct sof_ipc_pcm_ops ipc4_pcm_ops = {
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| 	.trigger = sof_ipc4_pcm_trigger,
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| 	.hw_free = sof_ipc4_pcm_hw_free,
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| 	.dai_link_fixup = sof_ipc4_pcm_dai_link_fixup,
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| };
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