// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)//// This file is provided under a dual BSD/GPLv2 license.  When using or// redistributing this file, you may do so under either license.//// Copyright(c) 2019 Intel Corporation. All rights reserved.//// Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>// #include "sof-audio.h"#include "ops.h" /* * helper to determine if there are only D0i3 compatible * streams active */bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev){	struct snd_pcm_substream *substream;	struct snd_sof_pcm *spcm;	bool d0i3_compatible_active = false;	int dir; 	list_for_each_entry(spcm, &sdev->pcm_list, list) {		for_each_pcm_streams(dir) {			substream = spcm->stream[dir].substream;			if (!substream || !substream->runtime)				continue; 			/*			 * substream->runtime being not NULL indicates			 * that the stream is open. No need to check the			 * stream state.			 */			if (!spcm->stream[dir].d0i3_compatible)				return false; 			d0i3_compatible_active = true;		}	} 	return d0i3_compatible_active;}EXPORT_SYMBOL(snd_sof_dsp_only_d0i3_compatible_stream_active); bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev){	struct snd_sof_pcm *spcm; 	list_for_each_entry(spcm, &sdev->pcm_list, list) {		if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].suspend_ignored ||		    spcm->stream[SNDRV_PCM_STREAM_CAPTURE].suspend_ignored)			return true;	} 	return false;} int sof_set_hw_params_upon_resume(struct device *dev){	struct snd_sof_dev *sdev = dev_get_drvdata(dev);	struct snd_pcm_substream *substream;	struct snd_sof_pcm *spcm;	snd_pcm_state_t state;	int dir; 	/*	 * SOF requires hw_params to be set-up internally upon resume.	 * So, set the flag to indicate this for those streams that	 * have been suspended.	 */	list_for_each_entry(spcm, &sdev->pcm_list, list) {		for_each_pcm_streams(dir) {			/*			 * do not reset hw_params upon resume for streams that			 * were kept running during suspend			 */			if (spcm->stream[dir].suspend_ignored)				continue; 			substream = spcm->stream[dir].substream;			if (!substream || !substream->runtime)				continue; 			state = substream->runtime->status->state;			if (state == SNDRV_PCM_STATE_SUSPENDED)				spcm->prepared[dir] = false;		}	} 	/* set internal flag for BE */	return snd_sof_dsp_hw_params_upon_resume(sdev);} static int sof_restore_kcontrols(struct device *dev){	struct snd_sof_dev *sdev = dev_get_drvdata(dev);	struct snd_sof_control *scontrol;	int ipc_cmd, ctrl_type;	int ret = 0; 	/* restore kcontrol values */	list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {		/* reset readback offset for scontrol after resuming */		scontrol->readback_offset = 0; 		/* notify DSP of kcontrol values */		switch (scontrol->cmd) {		case SOF_CTRL_CMD_VOLUME:		case SOF_CTRL_CMD_ENUM:		case SOF_CTRL_CMD_SWITCH:			ipc_cmd = SOF_IPC_COMP_SET_VALUE;			ctrl_type = SOF_CTRL_TYPE_VALUE_CHAN_SET;			ret = snd_sof_ipc_set_get_comp_data(scontrol,							    ipc_cmd, ctrl_type,							    scontrol->cmd,							    true);			break;		case SOF_CTRL_CMD_BINARY:			ipc_cmd = SOF_IPC_COMP_SET_DATA;			ctrl_type = SOF_CTRL_TYPE_DATA_SET;			ret = snd_sof_ipc_set_get_comp_data(scontrol,							    ipc_cmd, ctrl_type,							    scontrol->cmd,							    true);			break; 		default:			break;		} 		if (ret < 0) {			dev_err(dev,				"error: failed kcontrol value set for widget: %d\n",				scontrol->comp_id); 			return ret;		}	} 	return 0;} const struct sof_ipc_pipe_new *snd_sof_pipeline_find(struct snd_sof_dev *sdev,						     int pipeline_id){	const struct snd_sof_widget *swidget; 	list_for_each_entry(swidget, &sdev->widget_list, list)		if (swidget->id == snd_soc_dapm_scheduler) {			const struct sof_ipc_pipe_new *pipeline =				swidget->private;			if (pipeline->pipeline_id == pipeline_id)				return pipeline;		} 	return NULL;} int sof_restore_pipelines(struct device *dev){	struct snd_sof_dev *sdev = dev_get_drvdata(dev);	struct snd_sof_widget *swidget;	struct snd_sof_route *sroute;	struct sof_ipc_pipe_new *pipeline;	struct snd_sof_dai *dai;	struct sof_ipc_cmd_hdr *hdr;	struct sof_ipc_comp *comp;	size_t ipc_size;	int ret; 	/* restore pipeline components */	list_for_each_entry_reverse(swidget, &sdev->widget_list, list) {		struct sof_ipc_comp_reply r; 		/* skip if there is no private data */		if (!swidget->private)			continue; 		ret = sof_pipeline_core_enable(sdev, swidget);		if (ret < 0) {			dev_err(dev,				"error: failed to enable target core: %d\n",				ret); 			return ret;		} 		switch (swidget->id) {		case snd_soc_dapm_dai_in:		case snd_soc_dapm_dai_out:			ipc_size = sizeof(struct sof_ipc_comp_dai) +				   sizeof(struct sof_ipc_comp_ext);			comp = kzalloc(ipc_size, GFP_KERNEL);			if (!comp)				return -ENOMEM; 			dai = swidget->private;			memcpy(comp, &dai->comp_dai,			       sizeof(struct sof_ipc_comp_dai)); 			/* append extended data to the end of the component */			memcpy((u8 *)comp + sizeof(struct sof_ipc_comp_dai),			       &swidget->comp_ext, sizeof(swidget->comp_ext)); 			ret = sof_ipc_tx_message(sdev->ipc, comp->hdr.cmd,						 comp, ipc_size,						 &r, sizeof(r));			kfree(comp);			break;		case snd_soc_dapm_scheduler: 			/*			 * During suspend, all DSP cores are powered off.			 * Therefore upon resume, create the pipeline comp			 * and power up the core that the pipeline is			 * scheduled on.			 */			pipeline = swidget->private;			ret = sof_load_pipeline_ipc(dev, pipeline, &r);			break;		default:			hdr = swidget->private;			ret = sof_ipc_tx_message(sdev->ipc, hdr->cmd,						 swidget->private, hdr->size,						 &r, sizeof(r));			break;		}		if (ret < 0) {			dev_err(dev,				"error: failed to load widget type %d with ID: %d\n",				swidget->widget->id, swidget->comp_id); 			return ret;		}	} 	/* restore pipeline connections */	list_for_each_entry_reverse(sroute, &sdev->route_list, list) {		struct sof_ipc_pipe_comp_connect *connect;		struct sof_ipc_reply reply; 		/* skip if there's no private data */		if (!sroute->private)			continue; 		connect = sroute->private; 		/* send ipc */		ret = sof_ipc_tx_message(sdev->ipc,					 connect->hdr.cmd,					 connect, sizeof(*connect),					 &reply, sizeof(reply));		if (ret < 0) {			dev_err(dev,				"error: failed to load route sink %s control %s source %s\n",				sroute->route->sink,				sroute->route->control ? sroute->route->control					: "none",				sroute->route->source); 			return ret;		}	} 	/* restore dai links */	list_for_each_entry_reverse(dai, &sdev->dai_list, list) {		struct sof_ipc_reply reply;		struct sof_ipc_dai_config *config = &dai->dai_config[dai->current_config]; 		if (!config) {			dev_err(dev, "error: no config for DAI %s\n",				dai->name);			continue;		} 		/*		 * The link DMA channel would be invalidated for running		 * streams but not for streams that were in the PAUSED		 * state during suspend. So invalidate it here before setting		 * the dai config in the DSP.		 */		if (config->type == SOF_DAI_INTEL_HDA)			config->hda.link_dma_ch = DMA_CHAN_INVALID; 		ret = sof_ipc_tx_message(sdev->ipc,					 config->hdr.cmd, config,					 config->hdr.size,					 &reply, sizeof(reply)); 		if (ret < 0) {			dev_err(dev,				"error: failed to set dai config for %s\n",				dai->name); 			return ret;		}	} 	/* complete pipeline */	list_for_each_entry(swidget, &sdev->widget_list, list) {		switch (swidget->id) {		case snd_soc_dapm_scheduler:			swidget->complete =				snd_sof_complete_pipeline(dev, swidget);			break;		default:			break;		}	} 	/* restore pipeline kcontrols */	ret = sof_restore_kcontrols(dev);	if (ret < 0)		dev_err(dev,			"error: restoring kcontrols after resume\n"); 	return ret;} /* * Generic object lookup APIs. */ struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_soc_component *scomp,					   const char *name){	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);	struct snd_sof_pcm *spcm; 	list_for_each_entry(spcm, &sdev->pcm_list, list) {		/* match with PCM dai name */		if (strcmp(spcm->pcm.dai_name, name) == 0)			return spcm; 		/* match with playback caps name if set */		if (*spcm->pcm.caps[0].name &&		    !strcmp(spcm->pcm.caps[0].name, name))			return spcm; 		/* match with capture caps name if set */		if (*spcm->pcm.caps[1].name &&		    !strcmp(spcm->pcm.caps[1].name, name))			return spcm;	} 	return NULL;} struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_soc_component *scomp,					   unsigned int comp_id,					   int *direction){	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);	struct snd_sof_pcm *spcm;	int dir; 	list_for_each_entry(spcm, &sdev->pcm_list, list) {		for_each_pcm_streams(dir) {			if (spcm->stream[dir].comp_id == comp_id) {				*direction = dir;				return spcm;			}		}	} 	return NULL;} struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_soc_component *scomp,					     unsigned int pcm_id){	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);	struct snd_sof_pcm *spcm; 	list_for_each_entry(spcm, &sdev->pcm_list, list) {		if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id)			return spcm;	} 	return NULL;} struct snd_sof_widget *snd_sof_find_swidget(struct snd_soc_component *scomp,					    const char *name){	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);	struct snd_sof_widget *swidget; 	list_for_each_entry(swidget, &sdev->widget_list, list) {		if (strcmp(name, swidget->widget->name) == 0)			return swidget;	} 	return NULL;} /* find widget by stream name and direction */struct snd_sof_widget *snd_sof_find_swidget_sname(struct snd_soc_component *scomp,			   const char *pcm_name, int dir){	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);	struct snd_sof_widget *swidget;	enum snd_soc_dapm_type type; 	if (dir == SNDRV_PCM_STREAM_PLAYBACK)		type = snd_soc_dapm_aif_in;	else		type = snd_soc_dapm_aif_out; 	list_for_each_entry(swidget, &sdev->widget_list, list) {		if (!strcmp(pcm_name, swidget->widget->sname) &&		    swidget->id == type)			return swidget;	} 	return NULL;} struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp,				     const char *name){	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);	struct snd_sof_dai *dai; 	list_for_each_entry(dai, &sdev->dai_list, list) {		if (dai->name && (strcmp(name, dai->name) == 0))			return dai;	} 	return NULL;} /* * Helper to get SSP MCLK from a pcm_runtime. * Return 0 if not exist. */int sof_dai_get_mclk(struct snd_soc_pcm_runtime *rtd){	struct snd_soc_component *component =		snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);	struct snd_sof_dai *dai =		snd_sof_find_dai(component, (char *)rtd->dai_link->name); 	/* use the tplg configured mclk if existed */	if (!dai || !dai->dai_config)		return 0; 	switch (dai->dai_config->type) {	case SOF_DAI_INTEL_SSP:		return dai->dai_config->ssp.mclk_rate;	default:		/* not yet implemented for platforms other than the above */		dev_err(rtd->dev, "mclk for dai_config->type %d not supported yet!\n",			dai->dai_config->type);		return -EINVAL;	}}EXPORT_SYMBOL(sof_dai_get_mclk); /* * SOF Driver enumeration. */int sof_machine_check(struct snd_sof_dev *sdev){	struct snd_sof_pdata *sof_pdata = sdev->pdata;	const struct sof_dev_desc *desc = sof_pdata->desc;	struct snd_soc_acpi_mach *mach; 	if (!IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)) { 		/* find machine */		snd_sof_machine_select(sdev);		if (sof_pdata->machine) {			snd_sof_set_mach_params(sof_pdata->machine, sdev);			return 0;		} 		if (!IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC)) {			dev_err(sdev->dev, "error: no matching ASoC machine driver found - aborting probe\n");			return -ENODEV;		}	} else {		dev_warn(sdev->dev, "Force to use nocodec mode\n");	} 	/* select nocodec mode */	dev_warn(sdev->dev, "Using nocodec machine driver\n");	mach = devm_kzalloc(sdev->dev, sizeof(*mach), GFP_KERNEL);	if (!mach)		return -ENOMEM; 	mach->drv_name = "sof-nocodec";	sof_pdata->tplg_filename = desc->nocodec_tplg_filename; 	sof_pdata->machine = mach;	snd_sof_set_mach_params(sof_pdata->machine, sdev); 

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