linux-kernel - [PATCH 2/4] ASoC: qcom: sdm845: Create and setup jack in init callback

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Message-Id: <20181124110948.209019-2-cychiang@chromium.org>
Date:   Sat, 24 Nov 2018 19:09:46 +0800
From:   Cheng-Yi Chiang <cychiang@...omium.org>
To:     linux-kernel@...r.kernel.org
Cc:     Mark Brown <broonie@...nel.org>, oder_chiou@...ltek.com,
        alsa-devel@...a-project.org, dgreid@...omium.org,
        tzungbi@...omium.org, Rohit kumar <rohitkr@...eaurora.org>,
        Cheng-Yi Chiang <cychiang@...omium.org>
Subject: [PATCH 2/4] ASoC: qcom: sdm845: Create and setup jack in init callback

Add a callback for init ops on dai_link to create and setup jack.

Signed-off-by: Rohit kumar <rohitkr@...eaurora.org>
Signed-off-by: Cheng-Yi Chiang <cychiang@...omium.org>
---
 sound/soc/qcom/sdm845.c | 57 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 55 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c
index 95d8d4422dae0..43c03f8e8cdc2 100644
--- a/sound/soc/qcom/sdm845.c
+++ b/sound/soc/qcom/sdm845.c
@@ -8,6 +8,8 @@
 #include <linux/of_device.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
+#include <sound/jack.h>
+#include <uapi/linux/input-event-codes.h>
 #include "common.h"
 #include "qdsp6/q6afe.h"
 
@@ -17,6 +19,8 @@
 #define MI2S_BCLK_RATE		1536000
 
 struct sdm845_snd_data {
+	struct snd_soc_jack jack;
+	bool jack_setup;
 	struct snd_soc_card *card;
 	uint32_t pri_mi2s_clk_count;
 	uint32_t sec_mi2s_clk_count;
@@ -100,6 +104,54 @@ static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
 	return ret;
 }
 
+static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component;
+	struct snd_soc_dai_link *dai_link = rtd->dai_link;
+	struct snd_soc_card *card = rtd->card;
+	struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
+	int i, rval;
+
+	if (!pdata->jack_setup) {
+		struct snd_jack *jack;
+
+		rval = snd_soc_card_jack_new(card, "Headset Jack",
+				SND_JACK_HEADSET |
+				SND_JACK_HEADPHONE |
+				SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+				SND_JACK_BTN_2 | SND_JACK_BTN_3,
+				&pdata->jack, NULL, 0);
+
+		if (rval < 0) {
+			dev_err(card->dev, "Unable to add Headphone Jack\n");
+			return rval;
+		}
+
+		jack = pdata->jack.jack;
+
+		snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+		snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
+		snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
+		snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
+		pdata->jack_setup = true;
+	}
+
+	for (i = 0 ; i < dai_link->num_codecs; i++) {
+		struct snd_soc_dai *dai = rtd->codec_dais[i];
+
+		component = dai->component;
+		rval = snd_soc_component_set_jack(
+				component, &pdata->jack, NULL);
+		if (rval != 0 && rval != -ENOTSUPP) {
+			dev_warn(card->dev, "Failed to set jack: %d\n", rval);
+			return rval;
+		}
+	}
+
+	return 0;
+}
+
+
 static int sdm845_snd_startup(struct snd_pcm_substream *substream)
 {
 	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
@@ -220,7 +272,7 @@ static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = {
 	SND_SOC_DAPM_MIC("Int Mic", NULL),
 };
 
-static void sdm845_add_be_ops(struct snd_soc_card *card)
+static void sdm845_add_ops(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *link;
 	int i;
@@ -230,6 +282,7 @@ static void sdm845_add_be_ops(struct snd_soc_card *card)
 			link->ops = &sdm845_be_ops;
 			link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
 		}
+		link->init = sdm845_dai_init;
 	}
 }
 
@@ -264,7 +317,7 @@ static int sdm845_snd_platform_probe(struct platform_device *pdev)
 	data->card = card;
 	snd_soc_card_set_drvdata(card, data);
 
-	sdm845_add_be_ops(card);
+	sdm845_add_ops(card);
 	ret = snd_soc_register_card(card);
 	if (ret) {
 		dev_err(dev, "Sound card registration failed\n");
-- 
2.20.0.rc0.387.gc7a69e6b6c-goog