ASoC: fsl-asoc-card: Support Headphone and Microphone Jack detection (3b171194) · Commits · 戴 / test

sound/soc/fsl/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -315,6 +315,7 @@ config SND_SOC_FSL_ASOC_CARD
		depends on OF && I2C
		# enforce SND_SOC_FSL_ASOC_CARD=m if SND_AC97_CODEC=m:
		depends on SND_AC97_CODEC \|\| SND_AC97_CODEC=n
		select SND_SIMPLE_CARD_UTILS
		select SND_SOC_IMX_AUDMUX
		select SND_SOC_IMX_PCM_DMA
		select SND_SOC_FSL_ESAI

sound/soc/fsl/fsl-asoc-card.c

+75 −2

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		#endif
		#include <sound/pcm_params.h>
		#include <sound/soc.h>
		#include <sound/jack.h>
		#include <sound/simple_card_utils.h>

		#include "fsl_esai.h"
		#include "fsl_sai.h"
		@@ -65,6 +67,8 @@ struct cpu_priv {
		/**
		* struct fsl_asoc_card_priv - Freescale Generic ASOC card private data
		* @dai_link: DAI link structure including normal one and DPCM link
		* @hp_jack: Headphone Jack structure
		* @mic_jack: Microphone Jack structure
		* @pdev: platform device pointer
		* @codec_priv: CODEC private data
		* @cpu_priv: CPU private data
		@@ -79,6 +83,8 @@ struct cpu_priv {

		struct fsl_asoc_card_priv {
		struct snd_soc_dai_link dai_link[3];
		struct asoc_simple_jack hp_jack;
		struct asoc_simple_jack mic_jack;
		struct platform_device *pdev;
		struct codec_priv codec_priv;
		struct cpu_priv cpu_priv;
		@@ -445,6 +451,44 @@ static int fsl_asoc_card_audmux_init(struct device_node *np,
		return 0;
		}

		static int hp_jack_event(struct notifier_block *nb, unsigned long event,
		void *data)
		{
		struct snd_soc_jack jack = (struct snd_soc_jack )data;
		struct snd_soc_dapm_context *dapm = &jack->card->dapm;

		if (event & SND_JACK_HEADPHONE)
		/* Disable speaker if headphone is plugged in */
		snd_soc_dapm_disable_pin(dapm, "Ext Spk");
		else
		snd_soc_dapm_enable_pin(dapm, "Ext Spk");

		return 0;
		}

		static struct notifier_block hp_jack_nb = {
		.notifier_call = hp_jack_event,
		};

		static int mic_jack_event(struct notifier_block *nb, unsigned long event,
		void *data)
		{
		struct snd_soc_jack jack = (struct snd_soc_jack )data;
		struct snd_soc_dapm_context *dapm = &jack->card->dapm;

		if (event & SND_JACK_MICROPHONE)
		/* Disable dmic if microphone is plugged in */
		snd_soc_dapm_disable_pin(dapm, "DMIC");
		else
		snd_soc_dapm_enable_pin(dapm, "DMIC");

		return 0;
		}

		static struct notifier_block mic_jack_nb = {
		.notifier_call = mic_jack_event,
		};

		static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
		{
		struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
		@@ -745,8 +789,37 @@ static int fsl_asoc_card_probe(struct platform_device *pdev)
		snd_soc_card_set_drvdata(&priv->card, priv);

		ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
		if (ret && ret != -EPROBE_DEFER)
		if (ret) {
		if (ret != -EPROBE_DEFER)
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
		goto asrc_fail;
		}

		/*
		* Properties "hp-det-gpio" and "mic-det-gpio" are optional, and
		* asoc_simple_init_jack uses these properties for creating
		* Headphone Jack and Microphone Jack.
		*
		* The notifier is initialized in snd_soc_card_jack_new(), then
		* snd_soc_jack_notifier_register can be called.
		*/
		if (of_property_read_bool(np, "hp-det-gpio")) {
		ret = asoc_simple_init_jack(&priv->card, &priv->hp_jack,
		1, NULL, "Headphone Jack");
		if (ret)
		goto asrc_fail;

		snd_soc_jack_notifier_register(&priv->hp_jack.jack, &hp_jack_nb);
		}

		if (of_property_read_bool(np, "mic-det-gpio")) {
		ret = asoc_simple_init_jack(&priv->card, &priv->mic_jack,
		0, NULL, "Mic Jack");
		if (ret)
		goto asrc_fail;

		snd_soc_jack_notifier_register(&priv->mic_jack.jack, &mic_jack_nb);
		}

		asrc_fail:
		of_node_put(asrc_np);

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