sound/soc/qcom/common.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 // Copyright (c) 2018, Linaro Limited.
 // Copyright (c) 2018, The Linux Foundation. All rights reserved.

 #include <linux/module.h>
 #include <sound/jack.h>
 #include <linux/input-event-codes.h>
 #include "qdsp6/q6afe.h"
 #include "common.h"

 int qcom_snd_parse_of(struct snd_soc_card *card)
 {
 	struct device_node *np;
 	struct device_node *codec = NULL;
 	struct device_node *platform = NULL;
 	struct device_node *cpu = NULL;
 	struct device *dev = card->dev;
 	struct snd_soc_dai_link *link;
 	struct of_phandle_args args;
 	struct snd_soc_dai_link_component *dlc;
 	int ret, num_links;

 	ret = snd_soc_of_parse_card_name(card, "model");
 	if (ret == 0 && !card->name)
 		/* Deprecated, only for compatibility with old device trees */
 		ret = snd_soc_of_parse_card_name(card, "qcom,model");
 	if (ret) {
 		dev_err(dev, "Error parsing card name: %d\n", ret);
 		return ret;
 	}

 	if (of_property_read_bool(dev->of_node, "widgets")) {
 		ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets");
 		if (ret)
 			return ret;
 	}

 	/* DAPM routes */
 	if (of_property_read_bool(dev->of_node, "audio-routing")) {
 		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
 		if (ret)
 			return ret;
 	}
 	/* Deprecated, only for compatibility with old device trees */
 	if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
 		ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
 		if (ret)
 			return ret;
 	}

 	ret = snd_soc_of_parse_pin_switches(card, "pin-switches");
 	if (ret)
 		return ret;

 	ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
 	if (ret)
 		return ret;

 	/* Populate links */
 	num_links = of_get_available_child_count(dev->of_node);

 	/* Allocate the DAI link array */
 	card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
 	if (!card->dai_link)
 		return -ENOMEM;

 	card->num_links = num_links;
 	link = card->dai_link;

 	for_each_available_child_of_node(dev->of_node, np) {
 		dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
 		if (!dlc) {
 			ret = -ENOMEM;
 			goto err_put_np;
 		}

 		link->cpus	= &dlc[0];
 		link->platforms	= &dlc[1];

 		link->num_cpus		= 1;
 		link->num_platforms	= 1;

 		ret = of_property_read_string(np, "link-name", &link->name);
 		if (ret) {
 			dev_err(card->dev, "error getting codec dai_link name\n");
 			goto err_put_np;
 		}

 		cpu = of_get_child_by_name(np, "cpu");
 		platform = of_get_child_by_name(np, "platform");
 		codec = of_get_child_by_name(np, "codec");

 		if (!cpu) {
 			dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
 			ret = -EINVAL;
 			goto err;
 		}

 		ret = of_parse_phandle_with_args(cpu, "sound-dai",
 					"#sound-dai-cells", 0, &args);
 		if (ret) {
 			dev_err(card->dev, "%s: error getting cpu phandle\n", link->name);
 			goto err;
 		}
 		link->cpus->of_node = args.np;
 		link->id = args.args[0];

 		ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
 		if (ret) {
 			dev_err_probe(card->dev, ret,
 				      "%s: error getting cpu dai name\n", link->name);
 			goto err;
 		}

 		if (platform) {
 			link->platforms->of_node = of_parse_phandle(platform,
 					"sound-dai",
 					0);
 			if (!link->platforms->of_node) {
 				dev_err(card->dev, "%s: platform dai not found\n", link->name);
 				ret = -EINVAL;
 				goto err;
 			}
 		} else {
 			link->platforms->of_node = link->cpus->of_node;
 		}

 		if (codec) {
 			ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
 			if (ret < 0) {
 				dev_err_probe(card->dev, ret,
 					      "%s: codec dai not found\n", link->name);
 				goto err;
 			}

 			if (platform) {
 				/* DPCM backend */
 				link->no_pcm = 1;
 				link->ignore_pmdown_time = 1;
 			}
 		} else {
 			/* DPCM frontend */
 			dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
 			if (!dlc) {
 				ret = -ENOMEM;
 				goto err;
 			}

 			link->codecs	 = dlc;
 			link->num_codecs = 1;

 			link->codecs->dai_name = "snd-soc-dummy-dai";
 			link->codecs->name = "snd-soc-dummy";
 			link->dynamic = 1;
 		}

 		if (platform || !codec) {
 			/* DPCM */
 			snd_soc_dai_link_set_capabilities(link);
 			link->ignore_suspend = 1;
 			link->nonatomic = 1;
 		}

 		link->stream_name = link->name;
 		link++;

 		of_node_put(cpu);
 		of_node_put(codec);
 		of_node_put(platform);
 	}

 	return 0;
 err:
 	of_node_put(cpu);
 	of_node_put(codec);
 	of_node_put(platform);
 err_put_np:
 	of_node_put(np);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(qcom_snd_parse_of);

 #if IS_ENABLED(CONFIG_SOUNDWIRE)
 int qcom_snd_sdw_prepare(struct snd_pcm_substream *substream,
 			 struct sdw_stream_runtime *sruntime,
 			 bool *stream_prepared)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	int ret;

 	if (!sruntime)
 		return 0;

 	switch (cpu_dai->id) {
 	case WSA_CODEC_DMA_RX_0:
 	case WSA_CODEC_DMA_RX_1:
 	case RX_CODEC_DMA_RX_0:
 	case RX_CODEC_DMA_RX_1:
 	case TX_CODEC_DMA_TX_0:
 	case TX_CODEC_DMA_TX_1:
 	case TX_CODEC_DMA_TX_2:
 	case TX_CODEC_DMA_TX_3:
 		break;
 	default:
 		return 0;
 	}

 	if (*stream_prepared) {
 		sdw_disable_stream(sruntime);
 		sdw_deprepare_stream(sruntime);
 		*stream_prepared = false;
 	}

 	ret = sdw_prepare_stream(sruntime);
 	if (ret)
 		return ret;

 	/**
 	 * NOTE: there is a strict hw requirement about the ordering of port
 	 * enables and actual WSA881x PA enable. PA enable should only happen
 	 * after soundwire ports are enabled if not DC on the line is
 	 * accumulated resulting in Click/Pop Noise
 	 * PA enable/mute are handled as part of codec DAPM and digital mute.
 	 */

 	ret = sdw_enable_stream(sruntime);
 	if (ret) {
 		sdw_deprepare_stream(sruntime);
 		return ret;
 	}
 	*stream_prepared  = true;

 	return ret;
 }
 EXPORT_SYMBOL_GPL(qcom_snd_sdw_prepare);

 int qcom_snd_sdw_hw_params(struct snd_pcm_substream *substream,
 			   struct snd_pcm_hw_params *params,
 			   struct sdw_stream_runtime **psruntime)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct sdw_stream_runtime *sruntime;
 	int i;

 	switch (cpu_dai->id) {
 	case WSA_CODEC_DMA_RX_0:
 	case RX_CODEC_DMA_RX_0:
 	case RX_CODEC_DMA_RX_1:
 	case TX_CODEC_DMA_TX_0:
 	case TX_CODEC_DMA_TX_1:
 	case TX_CODEC_DMA_TX_2:
 	case TX_CODEC_DMA_TX_3:
 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
 			sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
 			if (sruntime != ERR_PTR(-ENOTSUPP))
 				*psruntime = sruntime;
 		}
 		break;
 	}

 	return 0;

 }
 EXPORT_SYMBOL_GPL(qcom_snd_sdw_hw_params);

 int qcom_snd_sdw_hw_free(struct snd_pcm_substream *substream,
 			 struct sdw_stream_runtime *sruntime, bool *stream_prepared)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

 	switch (cpu_dai->id) {
 	case WSA_CODEC_DMA_RX_0:
 	case WSA_CODEC_DMA_RX_1:
 	case RX_CODEC_DMA_RX_0:
 	case RX_CODEC_DMA_RX_1:
 	case TX_CODEC_DMA_TX_0:
 	case TX_CODEC_DMA_TX_1:
 	case TX_CODEC_DMA_TX_2:
 	case TX_CODEC_DMA_TX_3:
 		if (sruntime && *stream_prepared) {
 			sdw_disable_stream(sruntime);
 			sdw_deprepare_stream(sruntime);
 			*stream_prepared = false;
 		}
 		break;
 	default:
 		break;
 	}

 	return 0;
 }
 EXPORT_SYMBOL_GPL(qcom_snd_sdw_hw_free);
 #endif

 int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
 			    struct snd_soc_jack *jack, bool *jack_setup)
 {
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_card *card = rtd->card;
 	int rval, i;

 	if (!*jack_setup) {
 		rval = snd_soc_card_jack_new(card, "Headset Jack",
 					     SND_JACK_HEADSET | SND_JACK_LINEOUT |
 					     SND_JACK_MECHANICAL |
 					     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 					     SND_JACK_BTN_2 | SND_JACK_BTN_3 |
 					     SND_JACK_BTN_4 | SND_JACK_BTN_5,
 					     jack);

 		if (rval < 0) {
 			dev_err(card->dev, "Unable to add Headphone Jack\n");
 			return rval;
 		}

 		snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
 		snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
 		snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
 		snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
 		*jack_setup = true;
 	}

 	switch (cpu_dai->id) {
 	case TX_CODEC_DMA_TX_0:
 	case TX_CODEC_DMA_TX_1:
 	case TX_CODEC_DMA_TX_2:
 	case TX_CODEC_DMA_TX_3:
 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
 			rval = snd_soc_component_set_jack(codec_dai->component,
 							  jack, NULL);
 			if (rval != 0 && rval != -ENOTSUPP) {
 				dev_warn(card->dev, "Failed to set jack: %d\n", rval);
 				return rval;
 			}
 		}

 		break;
 	default:
 		break;
 	}


 	return 0;
 }
 EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);
 MODULE_LICENSE("GPL v2");
	// SPDX-License-Identifier: GPL-2.0
	// Copyright (c) 2018, Linaro Limited.
	// Copyright (c) 2018, The Linux Foundation. All rights reserved.

	#include <linux/module.h>
	#include <sound/jack.h>
	#include <linux/input-event-codes.h>
	#include "qdsp6/q6afe.h"
	#include "common.h"

	int qcom_snd_parse_of(struct snd_soc_card *card)
	{
	struct device_node *np;
	struct device_node *codec = NULL;
	struct device_node *platform = NULL;
	struct device_node *cpu = NULL;
	struct device *dev = card->dev;
	struct snd_soc_dai_link *link;
	struct of_phandle_args args;
	struct snd_soc_dai_link_component *dlc;
	int ret, num_links;

	ret = snd_soc_of_parse_card_name(card, "model");
	if (ret == 0 && !card->name)
	/* Deprecated, only for compatibility with old device trees */
	ret = snd_soc_of_parse_card_name(card, "qcom,model");
	if (ret) {
	dev_err(dev, "Error parsing card name: %d\n", ret);
	return ret;
	}

	if (of_property_read_bool(dev->of_node, "widgets")) {
	ret = snd_soc_of_parse_audio_simple_widgets(card, "widgets");
	if (ret)
	return ret;
	}

	/* DAPM routes */
	if (of_property_read_bool(dev->of_node, "audio-routing")) {
	ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
	if (ret)
	return ret;
	}
	/* Deprecated, only for compatibility with old device trees */
	if (of_property_read_bool(dev->of_node, "qcom,audio-routing")) {
	ret = snd_soc_of_parse_audio_routing(card, "qcom,audio-routing");
	if (ret)
	return ret;
	}

	ret = snd_soc_of_parse_pin_switches(card, "pin-switches");
	if (ret)
	return ret;

	ret = snd_soc_of_parse_aux_devs(card, "aux-devs");
	if (ret)
	return ret;

	/* Populate links */
	num_links = of_get_available_child_count(dev->of_node);

	/* Allocate the DAI link array */
	card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
	if (!card->dai_link)
	return -ENOMEM;

	card->num_links = num_links;
	link = card->dai_link;

	for_each_available_child_of_node(dev->of_node, np) {
	dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
	if (!dlc) {
	ret = -ENOMEM;
	goto err_put_np;
	}

	link->cpus = &dlc[0];
	link->platforms = &dlc[1];

	link->num_cpus = 1;
	link->num_platforms = 1;

	ret = of_property_read_string(np, "link-name", &link->name);
	if (ret) {
	dev_err(card->dev, "error getting codec dai_link name\n");
	goto err_put_np;
	}

	cpu = of_get_child_by_name(np, "cpu");
	platform = of_get_child_by_name(np, "platform");
	codec = of_get_child_by_name(np, "codec");

	if (!cpu) {
	dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
	ret = -EINVAL;
	goto err;
	}

	ret = of_parse_phandle_with_args(cpu, "sound-dai",
	"#sound-dai-cells", 0, &args);
	if (ret) {
	dev_err(card->dev, "%s: error getting cpu phandle\n", link->name);
	goto err;
	}
	link->cpus->of_node = args.np;
	link->id = args.args[0];

	ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
	if (ret) {
	dev_err_probe(card->dev, ret,
	"%s: error getting cpu dai name\n", link->name);
	goto err;
	}

	if (platform) {
	link->platforms->of_node = of_parse_phandle(platform,
	"sound-dai",
	0);
	if (!link->platforms->of_node) {
	dev_err(card->dev, "%s: platform dai not found\n", link->name);
	ret = -EINVAL;
	goto err;
	}
	} else {
	link->platforms->of_node = link->cpus->of_node;
	}

	if (codec) {
	ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
	if (ret < 0) {
	dev_err_probe(card->dev, ret,
	"%s: codec dai not found\n", link->name);
	goto err;
	}

	if (platform) {
	/* DPCM backend */
	link->no_pcm = 1;
	link->ignore_pmdown_time = 1;
	}
	} else {
	/* DPCM frontend */
	dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
	if (!dlc) {
	ret = -ENOMEM;
	goto err;
	}

	link->codecs = dlc;
	link->num_codecs = 1;

	link->codecs->dai_name = "snd-soc-dummy-dai";
	link->codecs->name = "snd-soc-dummy";
	link->dynamic = 1;
	}

	if (platform \|\| !codec) {
	/* DPCM */
	snd_soc_dai_link_set_capabilities(link);
	link->ignore_suspend = 1;
	link->nonatomic = 1;
	}

	link->stream_name = link->name;
	link++;

	of_node_put(cpu);
	of_node_put(codec);
	of_node_put(platform);
	}

	return 0;
	err:
	of_node_put(cpu);
	of_node_put(codec);
	of_node_put(platform);
	err_put_np:
	of_node_put(np);
	return ret;
	}
	EXPORT_SYMBOL_GPL(qcom_snd_parse_of);

	#if IS_ENABLED(CONFIG_SOUNDWIRE)
	int qcom_snd_sdw_prepare(struct snd_pcm_substream *substream,
	struct sdw_stream_runtime *sruntime,
	bool *stream_prepared)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	int ret;

	if (!sruntime)
	return 0;

	switch (cpu_dai->id) {
	case WSA_CODEC_DMA_RX_0:
	case WSA_CODEC_DMA_RX_1:
	case RX_CODEC_DMA_RX_0:
	case RX_CODEC_DMA_RX_1:
	case TX_CODEC_DMA_TX_0:
	case TX_CODEC_DMA_TX_1:
	case TX_CODEC_DMA_TX_2:
	case TX_CODEC_DMA_TX_3:
	break;
	default:
	return 0;
	}

	if (*stream_prepared) {
	sdw_disable_stream(sruntime);
	sdw_deprepare_stream(sruntime);
	*stream_prepared = false;
	}

	ret = sdw_prepare_stream(sruntime);
	if (ret)
	return ret;

	/**
	* NOTE: there is a strict hw requirement about the ordering of port
	* enables and actual WSA881x PA enable. PA enable should only happen
	* after soundwire ports are enabled if not DC on the line is
	* accumulated resulting in Click/Pop Noise
	* PA enable/mute are handled as part of codec DAPM and digital mute.
	*/

	ret = sdw_enable_stream(sruntime);
	if (ret) {
	sdw_deprepare_stream(sruntime);
	return ret;
	}
	*stream_prepared = true;

	return ret;
	}
	EXPORT_SYMBOL_GPL(qcom_snd_sdw_prepare);

	int qcom_snd_sdw_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct sdw_stream_runtime **psruntime)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai;
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct sdw_stream_runtime *sruntime;
	int i;

	switch (cpu_dai->id) {
	case WSA_CODEC_DMA_RX_0:
	case RX_CODEC_DMA_RX_0:
	case RX_CODEC_DMA_RX_1:
	case TX_CODEC_DMA_TX_0:
	case TX_CODEC_DMA_TX_1:
	case TX_CODEC_DMA_TX_2:
	case TX_CODEC_DMA_TX_3:
	for_each_rtd_codec_dais(rtd, i, codec_dai) {
	sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
	if (sruntime != ERR_PTR(-ENOTSUPP))
	*psruntime = sruntime;
	}
	break;
	}

	return 0;

	}
	EXPORT_SYMBOL_GPL(qcom_snd_sdw_hw_params);

	int qcom_snd_sdw_hw_free(struct snd_pcm_substream *substream,
	struct sdw_stream_runtime sruntime, bool stream_prepared)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);

	switch (cpu_dai->id) {
	case WSA_CODEC_DMA_RX_0:
	case WSA_CODEC_DMA_RX_1:
	case RX_CODEC_DMA_RX_0:
	case RX_CODEC_DMA_RX_1:
	case TX_CODEC_DMA_TX_0:
	case TX_CODEC_DMA_TX_1:
	case TX_CODEC_DMA_TX_2:
	case TX_CODEC_DMA_TX_3:
	if (sruntime && *stream_prepared) {
	sdw_disable_stream(sruntime);
	sdw_deprepare_stream(sruntime);
	*stream_prepared = false;
	}
	break;
	default:
	break;
	}

	return 0;
	}
	EXPORT_SYMBOL_GPL(qcom_snd_sdw_hw_free);
	#endif

	int qcom_snd_wcd_jack_setup(struct snd_soc_pcm_runtime *rtd,
	struct snd_soc_jack jack, bool jack_setup)
	{
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_card *card = rtd->card;
	int rval, i;

	if (!*jack_setup) {
	rval = snd_soc_card_jack_new(card, "Headset Jack",
	SND_JACK_HEADSET \| SND_JACK_LINEOUT \|
	SND_JACK_MECHANICAL \|
	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	SND_JACK_BTN_2 \| SND_JACK_BTN_3 \|
	SND_JACK_BTN_4 \| SND_JACK_BTN_5,
	jack);

	if (rval < 0) {
	dev_err(card->dev, "Unable to add Headphone Jack\n");
	return rval;
	}

	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_MEDIA);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
	*jack_setup = true;
	}

	switch (cpu_dai->id) {
	case TX_CODEC_DMA_TX_0:
	case TX_CODEC_DMA_TX_1:
	case TX_CODEC_DMA_TX_2:
	case TX_CODEC_DMA_TX_3:
	for_each_rtd_codec_dais(rtd, i, codec_dai) {
	rval = snd_soc_component_set_jack(codec_dai->component,
	jack, NULL);
	if (rval != 0 && rval != -ENOTSUPP) {
	dev_warn(card->dev, "Failed to set jack: %d\n", rval);
	return rval;
	}
	}

	break;
	default:
	break;
	}


	return 0;
	}
	EXPORT_SYMBOL_GPL(qcom_snd_wcd_jack_setup);
	MODULE_LICENSE("GPL v2");