[mirror_ubuntu-hirsute-kernel.git] / sound / soc / sof / sof-audio.c

// 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
			 * 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;
}

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_comp_dai *comp_dai;
	struct sof_ipc_cmd_hdr *hdr;
	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;

		switch (swidget->id) {
		case snd_soc_dapm_dai_in:
		case snd_soc_dapm_dai_out:
			dai = swidget->private;
			comp_dai = &dai->comp_dai;
			ret = sof_ipc_tx_message(sdev->ipc,
						 comp_dai->comp.hdr.cmd,
						 comp_dai, sizeof(*comp_dai),
						 &r, sizeof(r));
			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;

		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;
}

/*
 * 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;
	int ret;

	/* force nocodec mode */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
		dev_warn(sdev->dev, "Force to use nocodec mode\n");
		goto nocodec;
#endif

	/* find machine */
	snd_sof_machine_select(sdev);
	if (sof_pdata->machine) {
		snd_sof_set_mach_params(sof_pdata->machine, sdev->dev);
		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;
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
nocodec:
#endif
	/* 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;

	ret = sof_nocodec_setup(sdev->dev, desc->ops);
	if (ret < 0)
		return ret;

	sof_pdata->machine = mach;
	snd_sof_set_mach_params(sof_pdata->machine, sdev->dev);

	return 0;
}
EXPORT_SYMBOL(sof_machine_check);

int sof_machine_register(struct snd_sof_dev *sdev, void *pdata)
{
	struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata;
	const char *drv_name;
	const void *mach;
	int size;

	drv_name = plat_data->machine->drv_name;
	mach = (const void *)plat_data->machine;
	size = sizeof(*plat_data->machine);

	/* register machine driver, pass machine info as pdata */
	plat_data->pdev_mach =
		platform_device_register_data(sdev->dev, drv_name,
					      PLATFORM_DEVID_NONE, mach, size);
	if (IS_ERR(plat_data->pdev_mach))
		return PTR_ERR(plat_data->pdev_mach);

	dev_dbg(sdev->dev, "created machine %s\n",
		dev_name(&plat_data->pdev_mach->dev));

	return 0;
}
EXPORT_SYMBOL(sof_machine_register);

void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata)
{
	struct snd_sof_pdata *plat_data = (struct snd_sof_pdata *)pdata;

	if (!IS_ERR_OR_NULL(plat_data->pdev_mach))
		platform_device_unregister(plat_data->pdev_mach);
}
EXPORT_SYMBOL(sof_machine_unregister);
Commit	Line	Data
e149ca29	1	// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
ee1e79b7 RS	2	//
	3	// This file is provided under a dual BSD/GPLv2 license. When using or
	4	// redistributing this file, you may do so under either license.
	5	//
	6	// Copyright(c) 2019 Intel Corporation. All rights reserved.
	7	//
	8	// Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
	9	//
	10
	11	#include "sof-audio.h"
	12	#include "ops.h"
	13
de23a838 RS	14	/*
	15	* helper to determine if there are only D0i3 compatible
	16	* streams active
	17	*/
	18	bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev)
	19	{
	20	struct snd_pcm_substream *substream;
	21	struct snd_sof_pcm *spcm;
	22	bool d0i3_compatible_active = false;
	23	int dir;
	24
	25	list_for_each_entry(spcm, &sdev->pcm_list, list) {
525c4107	26	for_each_pcm_streams(dir) {
de23a838 RS	27	substream = spcm->stream[dir].substream;
	28	if (!substream \|\| !substream->runtime)
	29	continue;
	30
	31	/*
	32	* substream->runtime being not NULL indicates that
	33	* that the stream is open. No need to check the
	34	* stream state.
	35	*/
	36	if (!spcm->stream[dir].d0i3_compatible)
	37	return false;
	38
	39	d0i3_compatible_active = true;
	40	}
	41	}
	42
	43	return d0i3_compatible_active;
	44	}
	45	EXPORT_SYMBOL(snd_sof_dsp_only_d0i3_compatible_stream_active);
	46
700d1677	47	bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev)
ee1e79b7 RS	48	{
	49	struct snd_sof_pcm *spcm;
	50
	51	list_for_each_entry(spcm, &sdev->pcm_list, list) {
	52	if (spcm->stream[SNDRV_PCM_STREAM_PLAYBACK].suspend_ignored \|\|
	53	spcm->stream[SNDRV_PCM_STREAM_CAPTURE].suspend_ignored)
	54	return true;
	55	}
	56
	57	return false;
	58	}
	59
	60	int sof_set_hw_params_upon_resume(struct device *dev)
	61	{
	62	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
	63	struct snd_pcm_substream *substream;
	64	struct snd_sof_pcm *spcm;
	65	snd_pcm_state_t state;
	66	int dir;
	67
	68	/*
	69	* SOF requires hw_params to be set-up internally upon resume.
	70	* So, set the flag to indicate this for those streams that
	71	* have been suspended.
	72	*/
	73	list_for_each_entry(spcm, &sdev->pcm_list, list) {
525c4107	74	for_each_pcm_streams(dir) {
3f06501e RS	75	/*
	76	* do not reset hw_params upon resume for streams that
	77	* were kept running during suspend
	78	*/
	79	if (spcm->stream[dir].suspend_ignored)
	80	continue;
	81
ee1e79b7 RS	82	substream = spcm->stream[dir].substream;
	83	if (!substream \|\| !substream->runtime)
	84	continue;
	85
	86	state = substream->runtime->status->state;
	87	if (state == SNDRV_PCM_STATE_SUSPENDED)
	88	spcm->prepared[dir] = false;
	89	}
	90	}
	91
	92	/* set internal flag for BE */
	93	return snd_sof_dsp_hw_params_upon_resume(sdev);
	94	}
	95
	96	static int sof_restore_kcontrols(struct device *dev)
	97	{
	98	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
	99	struct snd_sof_control *scontrol;
	100	int ipc_cmd, ctrl_type;
	101	int ret = 0;
	102
	103	/* restore kcontrol values */
	104	list_for_each_entry(scontrol, &sdev->kcontrol_list, list) {
	105	/* reset readback offset for scontrol after resuming */
	106	scontrol->readback_offset = 0;
	107
	108	/* notify DSP of kcontrol values */
	109	switch (scontrol->cmd) {
	110	case SOF_CTRL_CMD_VOLUME:
	111	case SOF_CTRL_CMD_ENUM:
	112	case SOF_CTRL_CMD_SWITCH:
	113	ipc_cmd = SOF_IPC_COMP_SET_VALUE;
	114	ctrl_type = SOF_CTRL_TYPE_VALUE_CHAN_SET;
	115	ret = snd_sof_ipc_set_get_comp_data(scontrol,
	116	ipc_cmd, ctrl_type,
	117	scontrol->cmd,
	118	true);
	119	break;
	120	case SOF_CTRL_CMD_BINARY:
	121	ipc_cmd = SOF_IPC_COMP_SET_DATA;
	122	ctrl_type = SOF_CTRL_TYPE_DATA_SET;
	123	ret = snd_sof_ipc_set_get_comp_data(scontrol,
	124	ipc_cmd, ctrl_type,
	125	scontrol->cmd,
	126	true);
	127	break;
	128
	129	default:
	130	break;
	131	}
	132
	133	if (ret < 0) {
	134	dev_err(dev,
	135	"error: failed kcontrol value set for widget: %d\n",
	136	scontrol->comp_id);
	137
	138	return ret;
	139	}
	140	}
	141
	142	return 0;
	143	}
	144
	145	int sof_restore_pipelines(struct device *dev)
146	{
147	struct snd_sof_dev *sdev = dev_get_drvdata(dev);
148	struct snd_sof_widget *swidget;
149	struct snd_sof_route *sroute;
150	struct sof_ipc_pipe_new *pipeline;
151	struct snd_sof_dai *dai;
152	struct sof_ipc_comp_dai *comp_dai;
153	struct sof_ipc_cmd_hdr *hdr;
154	int ret;
155
156	/* restore pipeline components */
157	list_for_each_entry_reverse(swidget, &sdev->widget_list, list) {
158	struct sof_ipc_comp_reply r;
159
160	/* skip if there is no private data */
161	if (!swidget->private)
162	continue;
163
164	switch (swidget->id) {
165	case snd_soc_dapm_dai_in:
166	case snd_soc_dapm_dai_out:
167	dai = swidget->private;
168	comp_dai = &dai->comp_dai;
169	ret = sof_ipc_tx_message(sdev->ipc,
170	comp_dai->comp.hdr.cmd,
171	comp_dai, sizeof(*comp_dai),
172	&r, sizeof(r));
173	break;
174	case snd_soc_dapm_scheduler:
175
176	/*
177	* During suspend, all DSP cores are powered off.
178	* Therefore upon resume, create the pipeline comp
179	* and power up the core that the pipeline is
180	* scheduled on.
181	*/
182	pipeline = swidget->private;
183	ret = sof_load_pipeline_ipc(dev, pipeline, &r);
184	break;
185	default:
186	hdr = swidget->private;
187	ret = sof_ipc_tx_message(sdev->ipc, hdr->cmd,
188	swidget->private, hdr->size,
189	&r, sizeof(r));
190	break;
191	}
192	if (ret < 0) {
193	dev_err(dev,
194	"error: failed to load widget type %d with ID: %d\n",
195	swidget->widget->id, swidget->comp_id);
196
197	return ret;
198	}
199	}
200
201	/* restore pipeline connections */
202	list_for_each_entry_reverse(sroute, &sdev->route_list, list) {
203	struct sof_ipc_pipe_comp_connect *connect;
204	struct sof_ipc_reply reply;
205
206	/* skip if there's no private data */
207	if (!sroute->private)
208	continue;
209
210	connect = sroute->private;
211
212	/* send ipc */
213	ret = sof_ipc_tx_message(sdev->ipc,
214	connect->hdr.cmd,
215	connect, sizeof(*connect),
216	&reply, sizeof(reply));
217	if (ret < 0) {
218	dev_err(dev,
219	"error: failed to load route sink %s control %s source %s\n",
220	sroute->route->sink,
221	sroute->route->control ? sroute->route->control
222	: "none",
223	sroute->route->source);
224
225	return ret;
226	}
227	}
228
229	/* restore dai links */
230	list_for_each_entry_reverse(dai, &sdev->dai_list, list) {
231	struct sof_ipc_reply reply;
232	struct sof_ipc_dai_config *config = dai->dai_config;
233
234	if (!config) {
235	dev_err(dev, "error: no config for DAI %s\n",
236	dai->name);
237	continue;
238	}
239
240	/*
241	* The link DMA channel would be invalidated for running
242	* streams but not for streams that were in the PAUSED
243	* state during suspend. So invalidate it here before setting
244	* the dai config in the DSP.
245	*/
246	if (config->type == SOF_DAI_INTEL_HDA)
247	config->hda.link_dma_ch = DMA_CHAN_INVALID;
248
249	ret = sof_ipc_tx_message(sdev->ipc,
250	config->hdr.cmd, config,
251	config->hdr.size,
252	&reply, sizeof(reply));
253
254	if (ret < 0) {
255	dev_err(dev,
256	"error: failed to set dai config for %s\n",
257	dai->name);
258
259	return ret;
260	}
261	}
262
263	/* complete pipeline */
264	list_for_each_entry(swidget, &sdev->widget_list, list) {
265	switch (swidget->id) {
266	case snd_soc_dapm_scheduler:
267	swidget->complete =
268	snd_sof_complete_pipeline(dev, swidget);
269	break;
270	default:
271	break;
272	}
273	}
274
275	/* restore pipeline kcontrols */
276	ret = sof_restore_kcontrols(dev);
277	if (ret < 0)
278	dev_err(dev,
279	"error: restoring kcontrols after resume\n");
280
281	return ret;
282	}
283
284	/*
285	* Generic object lookup APIs.
286	*/
287
288	struct snd_sof_pcm snd_sof_find_spcm_name(struct snd_soc_component scomp,
289	const char *name)
290	{
291	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
292	struct snd_sof_pcm *spcm;
293
294	list_for_each_entry(spcm, &sdev->pcm_list, list) {
295	/* match with PCM dai name */
296	if (strcmp(spcm->pcm.dai_name, name) == 0)
297	return spcm;
298
299	/* match with playback caps name if set */
300	if (*spcm->pcm.caps[0].name &&
301	!strcmp(spcm->pcm.caps[0].name, name))
302	return spcm;
303
304	/* match with capture caps name if set */
305	if (*spcm->pcm.caps[1].name &&
306	!strcmp(spcm->pcm.caps[1].name, name))
307	return spcm;
308	}
309
310	return NULL;
311	}
312
313	struct snd_sof_pcm snd_sof_find_spcm_comp(struct snd_soc_component scomp,
314	unsigned int comp_id,
315	int *direction)
316	{
317	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
318	struct snd_sof_pcm *spcm;
319	int dir;
320
321	list_for_each_entry(spcm, &sdev->pcm_list, list) {
525c4107 KM	322	for_each_pcm_streams(dir) {
	323	if (spcm->stream[dir].comp_id == comp_id) {
	324	*direction = dir;
	325	return spcm;
	326	}
ee1e79b7 RS	327	}
	328	}
	329
	330	return NULL;
	331	}
	332
	333	struct snd_sof_pcm snd_sof_find_spcm_pcm_id(struct snd_soc_component scomp,
	334	unsigned int pcm_id)
	335	{
	336	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
	337	struct snd_sof_pcm *spcm;
	338
	339	list_for_each_entry(spcm, &sdev->pcm_list, list) {
	340	if (le32_to_cpu(spcm->pcm.pcm_id) == pcm_id)
	341	return spcm;
	342	}
	343
	344	return NULL;
	345	}
	346
	347	struct snd_sof_widget snd_sof_find_swidget(struct snd_soc_component scomp,
	348	const char *name)
	349	{
	350	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
	351	struct snd_sof_widget *swidget;
	352
	353	list_for_each_entry(swidget, &sdev->widget_list, list) {
	354	if (strcmp(name, swidget->widget->name) == 0)
	355	return swidget;
	356	}
	357
	358	return NULL;
	359	}
	360
	361	/* find widget by stream name and direction */
	362	struct snd_sof_widget *
	363	snd_sof_find_swidget_sname(struct snd_soc_component *scomp,
	364	const char *pcm_name, int dir)
	365	{
	366	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
	367	struct snd_sof_widget *swidget;
	368	enum snd_soc_dapm_type type;
	369
	370	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
	371	type = snd_soc_dapm_aif_in;
	372	else
	373	type = snd_soc_dapm_aif_out;
	374
	375	list_for_each_entry(swidget, &sdev->widget_list, list) {
	376	if (!strcmp(pcm_name, swidget->widget->sname) &&
	377	swidget->id == type)
	378	return swidget;
	379	}
	380
	381	return NULL;
	382	}
	383
	384	struct snd_sof_dai snd_sof_find_dai(struct snd_soc_component scomp,
	385	const char *name)
	386	{
	387	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
	388	struct snd_sof_dai *dai;
	389
	390	list_for_each_entry(dai, &sdev->dai_list, list) {
391	if (dai->name && (strcmp(name, dai->name) == 0))
392	return dai;
393	}
394
395	return NULL;
396	}
397
285880a2 DB	398	/*
	399	* SOF Driver enumeration.
	400	*/
	401	int sof_machine_check(struct snd_sof_dev *sdev)
	402	{
	403	struct snd_sof_pdata *sof_pdata = sdev->pdata;
	404	const struct sof_dev_desc *desc = sof_pdata->desc;
	405	struct snd_soc_acpi_mach *mach;
	406	int ret;
	407
	408	/* force nocodec mode */
	409	#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
	410	dev_warn(sdev->dev, "Force to use nocodec mode\n");
	411	goto nocodec;
	412	#endif
	413
	414	/* find machine */
	415	snd_sof_machine_select(sdev);
	416	if (sof_pdata->machine) {
	417	snd_sof_set_mach_params(sof_pdata->machine, sdev->dev);
	418	return 0;
	419	}
	420
	421	#if !IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC)
	422	dev_err(sdev->dev, "error: no matching ASoC machine driver found - aborting probe\n");
	423	return -ENODEV;
	424	#endif
	425	#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
	426	nocodec:
	427	#endif
	428	/* select nocodec mode */
	429	dev_warn(sdev->dev, "Using nocodec machine driver\n");
	430	mach = devm_kzalloc(sdev->dev, sizeof(*mach), GFP_KERNEL);
	431	if (!mach)
	432	return -ENOMEM;
	433
d612b455 RS	434	mach->drv_name = "sof-nocodec";
	435	sof_pdata->tplg_filename = desc->nocodec_tplg_filename;
	436
	437	ret = sof_nocodec_setup(sdev->dev, desc->ops);
285880a2 DB	438	if (ret < 0)
	439	return ret;
	440
	441	sof_pdata->machine = mach;
	442	snd_sof_set_mach_params(sof_pdata->machine, sdev->dev);
	443
	444	return 0;
	445	}
	446	EXPORT_SYMBOL(sof_machine_check);
	447
	448	int sof_machine_register(struct snd_sof_dev sdev, void pdata)
	449	{
	450	struct snd_sof_pdata plat_data = (struct snd_sof_pdata )pdata;
	451	const char *drv_name;
	452	const void *mach;
	453	int size;
	454
	455	drv_name = plat_data->machine->drv_name;
	456	mach = (const void *)plat_data->machine;
	457	size = sizeof(*plat_data->machine);
	458
	459	/* register machine driver, pass machine info as pdata */
	460	plat_data->pdev_mach =
	461	platform_device_register_data(sdev->dev, drv_name,
	462	PLATFORM_DEVID_NONE, mach, size);
	463	if (IS_ERR(plat_data->pdev_mach))
	464	return PTR_ERR(plat_data->pdev_mach);
	465
	466	dev_dbg(sdev->dev, "created machine %s\n",
	467	dev_name(&plat_data->pdev_mach->dev));
	468
	469	return 0;
	470	}
	471	EXPORT_SYMBOL(sof_machine_register);
	472
	473	void sof_machine_unregister(struct snd_sof_dev sdev, void pdata)
	474	{
	475	struct snd_sof_pdata plat_data = (struct snd_sof_pdata )pdata;
	476
	477	if (!IS_ERR_OR_NULL(plat_data->pdev_mach))
	478	platform_device_unregister(plat_data->pdev_mach);
	479	}
	480	EXPORT_SYMBOL(sof_machine_unregister);