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 <dt-bindings/sound/qcom,q6afe.h>
 #include <linux/module.h>
 #include <sound/jack.h>
 #include <linux/input-event-codes.h>
 #include "common.h"

 #define NAME_SIZE	32

 static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_MIC("Mic Jack", NULL),
 	SND_SOC_DAPM_SPK("DP0 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP1 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP2 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP3 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP4 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP5 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP6 Jack", NULL),
 	SND_SOC_DAPM_SPK("DP7 Jack", NULL),
 };

 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_kcalloc(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 = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0);
 		if (ret) {
 			dev_err_probe(card->dev, ret,
 				      "%s: error getting cpu dai name\n", link->name);
 			goto err;
 		}

 		link->id = args.args[0];

 		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 */
 			link->codecs	 = &snd_soc_dummy_dlc;
 			link->num_codecs = 1;
 			link->dynamic = 1;
 		}

 		if (platform || !codec) {
 			/* DPCM */
 			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);
 	}

 	if (!card->dapm_widgets) {
 		card->dapm_widgets = qcom_jack_snd_widgets;
 		card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets);
 	}

 	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);

 static struct snd_soc_jack_pin qcom_headset_jack_pins[] = {
 	/* Headset */
 	{
 		.pin = "Mic Jack",
 		.mask = SND_JACK_MICROPHONE,
 	},
 	{
 		.pin = "Headphone Jack",
 		.mask = SND_JACK_HEADPHONE,
 	},
 };

 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 = snd_soc_rtd_to_cpu(rtd, 0);
 	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 	struct snd_soc_card *card = rtd->card;
 	int rval, i;

 	if (!*jack_setup) {
 		rval = snd_soc_card_jack_new_pins(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, qcom_headset_jack_pins,
 					     ARRAY_SIZE(qcom_headset_jack_pins));

 		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);

 int qcom_snd_dp_jack_setup(struct snd_soc_pcm_runtime *rtd,
 			   struct snd_soc_jack *dp_jack, int dp_pcm_id)
 {
 	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 	struct snd_soc_card *card = rtd->card;
 	char jack_name[NAME_SIZE];
 	int rval, i;

 	snprintf(jack_name, sizeof(jack_name), "DP%d Jack", dp_pcm_id);
 	rval = snd_soc_card_jack_new(card, jack_name, SND_JACK_AVOUT, dp_jack);
 	if (rval)
 		return rval;

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

 	return 0;
 }
 EXPORT_SYMBOL_GPL(qcom_snd_dp_jack_setup);

 MODULE_DESCRIPTION("ASoC Qualcomm helper functions");
 MODULE_LICENSE("GPL");
	// SPDX-License-Identifier: GPL-2.0
	// Copyright (c) 2018, Linaro Limited.
	// Copyright (c) 2018, The Linux Foundation. All rights reserved.

	#include <dt-bindings/sound/qcom,q6afe.h>
	#include <linux/module.h>
	#include <sound/jack.h>
	#include <linux/input-event-codes.h>
	#include "common.h"

	#define NAME_SIZE 32

	static const struct snd_soc_dapm_widget qcom_jack_snd_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_SPK("DP0 Jack", NULL),
	SND_SOC_DAPM_SPK("DP1 Jack", NULL),
	SND_SOC_DAPM_SPK("DP2 Jack", NULL),
	SND_SOC_DAPM_SPK("DP3 Jack", NULL),
	SND_SOC_DAPM_SPK("DP4 Jack", NULL),
	SND_SOC_DAPM_SPK("DP5 Jack", NULL),
	SND_SOC_DAPM_SPK("DP6 Jack", NULL),
	SND_SOC_DAPM_SPK("DP7 Jack", NULL),
	};

	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_kcalloc(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 = snd_soc_of_get_dlc(cpu, &args, link->cpus, 0);
	if (ret) {
	dev_err_probe(card->dev, ret,
	"%s: error getting cpu dai name\n", link->name);
	goto err;
	}

	link->id = args.args[0];

	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 */
	link->codecs = &snd_soc_dummy_dlc;
	link->num_codecs = 1;
	link->dynamic = 1;
	}

	if (platform \|\| !codec) {
	/* DPCM */
	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);
	}

	if (!card->dapm_widgets) {
	card->dapm_widgets = qcom_jack_snd_widgets;
	card->num_dapm_widgets = ARRAY_SIZE(qcom_jack_snd_widgets);
	}

	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);

	static struct snd_soc_jack_pin qcom_headset_jack_pins[] = {
	/* Headset */
	{
	.pin = "Mic Jack",
	.mask = SND_JACK_MICROPHONE,
	},
	{
	.pin = "Headphone Jack",
	.mask = SND_JACK_HEADPHONE,
	},
	};

	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 = snd_soc_rtd_to_cpu(rtd, 0);
	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
	struct snd_soc_card *card = rtd->card;
	int rval, i;

	if (!*jack_setup) {
	rval = snd_soc_card_jack_new_pins(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, qcom_headset_jack_pins,
	ARRAY_SIZE(qcom_headset_jack_pins));

	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);

	int qcom_snd_dp_jack_setup(struct snd_soc_pcm_runtime *rtd,
	struct snd_soc_jack *dp_jack, int dp_pcm_id)
	{
	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
	struct snd_soc_card *card = rtd->card;
	char jack_name[NAME_SIZE];
	int rval, i;

	snprintf(jack_name, sizeof(jack_name), "DP%d Jack", dp_pcm_id);
	rval = snd_soc_card_jack_new(card, jack_name, SND_JACK_AVOUT, dp_jack);
	if (rval)
	return rval;

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

	return 0;
	}
	EXPORT_SYMBOL_GPL(qcom_snd_dp_jack_setup);

	MODULE_DESCRIPTION("ASoC Qualcomm helper functions");
	MODULE_LICENSE("GPL");