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Commit b47b91c8 authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
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ASoC: qcom: apq8016-sbc: Add support to Headset JACK 



This patch adds support to Headset JACK, also provides board specific
vref ranges for mbhc buttons to be detected.

This headset supports both 3 pole and 4 pole headset type and 5 buttons.

Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent de66b345

sound/soc/qcom/apq8016_sbc.c

+34 −0
Original line number Diff line number Diff line
@@ -21,12 +21,16 @@ 
#include <linux/platform_device.h>

#include <sound/pcm.h>

#include <sound/pcm_params.h>

#include <sound/jack.h>

#include <sound/soc.h>

#include <uapi/linux/input-event-codes.h>

#include <dt-bindings/sound/apq8016-lpass.h>



struct apq8016_sbc_data {

	void __iomem *mic_iomux;

	void __iomem *spkr_iomux;

	struct snd_soc_jack jack;

	bool jack_setup;

	struct snd_soc_dai_link dai_link[];	/* dynamically allocated */

};
@@ -70,6 +74,31 @@ static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) 


	}



	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 |

					     SND_JACK_BTN_4,

					     &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_MEDIA);

		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];
@@ -81,6 +110,11 @@ static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) 
			dev_warn(card->dev, "Failed to set mclk: %d\n", rval);

			return rval;

		}

		rval = snd_soc_codec_set_jack(codec, &pdata->jack, NULL);

		if (rval != 0 && rval != -ENOTSUPP) {

			dev_warn(card->dev, "Failed to set jack: %d\n", rval);

			return rval;

		}

	}



	return 0;