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Commit bd0b286e authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Mark Brown
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ASoC: omap-twl4030: Add support for routing, voice port and jack detect 



Update the common machine driver to support more boards including Zoom2 and
SDP3430.
- Support for voice port of twl4030
- HS jack plug detection support
- The audio routing can be fine tuned via pdata or via provided routing
  table from DT.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent fff3dd40

Documentation/devicetree/bindings/sound/omap-twl4030.txt

+46 −0
Original line number Diff line number Diff line
@@ -6,6 +6,52 @@ Required properties: 
- ti,mcbsp: phandle for the McBSP node

- ti,codec: phandle for the twl4030 audio node



Optional properties:

- ti,mcbsp-voice: phandle for the McBSP node connected to the voice port of twl

- ti, jack-det-gpio: Jack detect GPIO

- ti,audio-routing: List of connections between audio components.

  Each entry is a pair of strings, the first being the connection's sink,

  the second being the connection's source.

  If the routing is not provided all possible connection will be available



Available audio endpoints for the audio-routing table:



Board connectors:

 * Headset Stereophone

 * Earpiece Spk

 * Handsfree Spk

 * Ext Spk

 * Main Mic

 * Sub Mic

 * Headset Mic

 * Carkit Mic

 * Digital0 Mic

 * Digital1 Mic

 * Line In



twl4030 pins:

 * HSOL

 * HSOR

 * EARPIECE

 * HFL

 * HFR

 * PREDRIVEL

 * PREDRIVER

 * CARKITL

 * CARKITR

 * MAINMIC

 * SUBMIC

 * HSMIC

 * DIGIMIC0

 * DIGIMIC1

 * CARKITMIC

 * AUXL

 * AUXR



 * Headset Mic Bias

 * Mic Bias 1 /* Used for Main Mic or Digimic0 */

 * Mic Bias 2 /* Used for Sub Mic or Digimic1 */



Example:



sound {

sound/soc/omap/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -91,6 +91,8 @@ config SND_OMAP_SOC_OMAP_TWL4030 
	  - Gumstix Overo or CompuLab CM-T35/CM-T3730

	  - IGEP v2

	  - OMAP3EVM

	  - SDP3430

	  - Zoom2



config SND_OMAP_SOC_OMAP_ABE_TWL6040

	tristate "SoC Audio support for OMAP boards using ABE and twl6040 codec"

sound/soc/omap/omap-twl4030.c

+202 −2
Original line number Diff line number Diff line
@@ -11,6 +11,8 @@ 
 * omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>)

 * overo (Author: Steve Sakoman <steve@sakoman.com>)

 * igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>)

 * zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)

 * sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License
@@ -32,14 +34,22 @@ 
#include <linux/platform_data/omap-twl4030.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/gpio.h>

#include <linux/of_gpio.h>



#include <sound/core.h>

#include <sound/pcm.h>

#include <sound/soc.h>

#include <sound/jack.h>



#include "omap-mcbsp.h"

#include "omap-pcm.h"



struct omap_twl4030 {

	int jack_detect;	/* board can detect jack events */

	struct snd_soc_jack hs_jack;

};



static int omap_twl4030_hw_params(struct snd_pcm_substream *substream,

	struct snd_pcm_hw_params *params)

{
@@ -87,17 +97,164 @@ static struct snd_soc_ops omap_twl4030_ops = { 
	.hw_params = omap_twl4030_hw_params,

};



static const struct snd_soc_dapm_widget dapm_widgets[] = {

	SND_SOC_DAPM_SPK("Earpiece Spk", NULL),

	SND_SOC_DAPM_SPK("Handsfree Spk", NULL),

	SND_SOC_DAPM_HP("Headset Stereophone", NULL),

	SND_SOC_DAPM_SPK("Ext Spk", NULL),

	SND_SOC_DAPM_SPK("Carkit Spk", NULL),



	SND_SOC_DAPM_MIC("Main Mic", NULL),

	SND_SOC_DAPM_MIC("Sub Mic", NULL),

	SND_SOC_DAPM_MIC("Headset Mic", NULL),

	SND_SOC_DAPM_MIC("Carkit Mic", NULL),

	SND_SOC_DAPM_MIC("Digital0 Mic", NULL),

	SND_SOC_DAPM_MIC("Digital1 Mic", NULL),

	SND_SOC_DAPM_LINE("Line In", NULL),

};



static const struct snd_soc_dapm_route audio_map[] = {

	/* Headset Stereophone:  HSOL, HSOR */

	{"Headset Stereophone", NULL, "HSOL"},

	{"Headset Stereophone", NULL, "HSOR"},

	/* External Speakers: HFL, HFR */

	{"Handsfree Spk", NULL, "HFL"},

	{"Handsfree Spk", NULL, "HFR"},

	/* External Speakers: PredrivL, PredrivR */

	{"Ext Spk", NULL, "PREDRIVEL"},

	{"Ext Spk", NULL, "PREDRIVER"},

	/* Carkit speakers:  CARKITL, CARKITR */

	{"Carkit Spk", NULL, "CARKITL"},

	{"Carkit Spk", NULL, "CARKITR"},

	/* Earpiece */

	{"Earpiece Spk", NULL, "EARPIECE"},



	/* External Mics: MAINMIC, SUBMIC with bias */

	{"MAINMIC", NULL, "Main Mic"},

	{"Main Mic", NULL, "Mic Bias 1"},

	{"SUBMIC", NULL, "Sub Mic"},

	{"Sub Mic", NULL, "Mic Bias 2"},

	/* Headset Mic: HSMIC with bias */

	{"HSMIC", NULL, "Headset Mic"},

	{"Headset Mic", NULL, "Headset Mic Bias"},

	/* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */

	{"DIGIMIC0", NULL, "Digital0 Mic"},

	{"Digital0 Mic", NULL, "Mic Bias 1"},

	{"DIGIMIC1", NULL, "Digital1 Mic"},

	{"Digital1 Mic", NULL, "Mic Bias 2"},

	/* Carkit In: CARKITMIC */

	{"CARKITMIC", NULL, "Carkit Mic"},

	/* Aux In: AUXL, AUXR */

	{"AUXL", NULL, "Line In"},

	{"AUXR", NULL, "Line In"},

};



/* Headset jack detection DAPM pins */

static struct snd_soc_jack_pin hs_jack_pins[] = {

	{

		.pin = "Headset Mic",

		.mask = SND_JACK_MICROPHONE,

	},

	{

		.pin = "Headset Stereophone",

		.mask = SND_JACK_HEADPHONE,

	},

};



/* Headset jack detection gpios */

static struct snd_soc_jack_gpio hs_jack_gpios[] = {

	{

		.name = "hsdet-gpio",

		.report = SND_JACK_HEADSET,

		.debounce_time = 200,

	},

};



static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm,

					  int connected, char *pin)

{

	if (!connected)

		snd_soc_dapm_disable_pin(dapm, pin);

}



static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd)

{

	struct snd_soc_codec *codec = rtd->codec;

	struct snd_soc_card *card = codec->card;

	struct snd_soc_dapm_context *dapm = &codec->dapm;

	struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev);

	struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);

	int ret = 0;



	/* Headset jack detection only if it is supported */

	if (priv->jack_detect > 0) {

		hs_jack_gpios[0].gpio = priv->jack_detect;



		ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,

				       &priv->hs_jack);

		if (ret)

			return ret;



		ret = snd_soc_jack_add_pins(&priv->hs_jack,

					    ARRAY_SIZE(hs_jack_pins),

					    hs_jack_pins);

		if (ret)

			return ret;



		ret = snd_soc_jack_add_gpios(&priv->hs_jack,

					     ARRAY_SIZE(hs_jack_gpios),

					     hs_jack_gpios);

		if (ret)

			return ret;

	}



	/*

	 * NULL pdata means we booted with DT. In this case the routing is

	 * provided and the card is fully routed, no need to mark pins.

	 */

	if (!pdata || !pdata->custom_routing)

		return ret;



	/* Disable not connected paths if not used */

	twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk");

	twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk");

	twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");

	twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk");

	twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk");



	twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic");

	twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic");

	twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");

	twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic");

	twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic");

	twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic");

	twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In");



	return ret;

}



/* Digital audio interface glue - connects codec <--> CPU */

static struct snd_soc_dai_link omap_twl4030_dai_links[] = {

	{

		.name = "TWL4030",

		.stream_name = "TWL4030",

		.name = "TWL4030 HiFi",

		.stream_name = "TWL4030 HiFi",

		.cpu_dai_name = "omap-mcbsp.2",

		.codec_dai_name = "twl4030-hifi",

		.platform_name = "omap-pcm-audio",

		.codec_name = "twl4030-codec",

		.init = omap_twl4030_init,

		.ops = &omap_twl4030_ops,

	},

	{

		.name = "TWL4030 Voice",

		.stream_name = "TWL4030 Voice",

		.cpu_dai_name = "omap-mcbsp.3",

		.codec_dai_name = "twl4030-voice",

		.platform_name = "omap-pcm-audio",

		.codec_name = "twl4030-codec",

		.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |

			   SND_SOC_DAIFMT_CBM_CFM,

	},

};



/* Audio machine driver */
@@ -105,6 +262,11 @@ static struct snd_soc_card omap_twl4030_card = { 
	.owner = THIS_MODULE,

	.dai_link = omap_twl4030_dai_links,

	.num_links = ARRAY_SIZE(omap_twl4030_dai_links),



	.dapm_widgets = dapm_widgets,

	.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),

	.dapm_routes = audio_map,

	.num_dapm_routes = ARRAY_SIZE(audio_map),

};



static int omap_twl4030_probe(struct platform_device *pdev)
@@ -112,12 +274,18 @@ static int omap_twl4030_probe(struct platform_device *pdev) 
	struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);

	struct device_node *node = pdev->dev.of_node;

	struct snd_soc_card *card = &omap_twl4030_card;

	struct omap_twl4030 *priv;

	int ret = 0;



	card->dev = &pdev->dev;



	priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL);

	if (priv == NULL)

		return -ENOMEM;



	if (node) {

		struct device_node *dai_node;

		struct property *prop;



		if (snd_soc_of_parse_card_name(card, "ti,model")) {

			dev_err(&pdev->dev, "Card name is not provided\n");
@@ -132,6 +300,27 @@ static int omap_twl4030_probe(struct platform_device *pdev) 
		omap_twl4030_dai_links[0].cpu_dai_name  = NULL;

		omap_twl4030_dai_links[0].cpu_of_node = dai_node;



		dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0);

		if (!dai_node) {

			card->num_links = 1;

		} else {

			omap_twl4030_dai_links[1].cpu_dai_name  = NULL;

			omap_twl4030_dai_links[1].cpu_of_node = dai_node;

		}



		priv->jack_detect = of_get_named_gpio(node,

						      "ti,jack-det-gpio", 0);



		/* Optional: audio routing can be provided */

		prop = of_find_property(node, "ti,audio-routing", NULL);

		if (prop) {

			ret = snd_soc_of_parse_audio_routing(card,

							    "ti,audio-routing");

			if (ret)

				return ret;



			card->fully_routed = 1;

		}

	} else if (pdata) {

		if (pdata->card_name) {

			card->name = pdata->card_name;
@@ -139,11 +328,17 @@ static int omap_twl4030_probe(struct platform_device *pdev) 
			dev_err(&pdev->dev, "Card name is not provided\n");

			return -ENODEV;

		}



		if (!pdata->voice_connected)

			card->num_links = 1;



		priv->jack_detect = pdata->jack_detect;

	} else {

		dev_err(&pdev->dev, "Missing pdata\n");

		return -ENODEV;

	}



	snd_soc_card_set_drvdata(card, priv);

	ret = snd_soc_register_card(card);

	if (ret) {

		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
@@ -157,7 +352,12 @@ static int omap_twl4030_probe(struct platform_device *pdev) 
static int omap_twl4030_remove(struct platform_device *pdev)

{

	struct snd_soc_card *card = platform_get_drvdata(pdev);

	struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);



	if (priv->jack_detect > 0)

		snd_soc_jack_free_gpios(&priv->hs_jack,

					ARRAY_SIZE(hs_jack_gpios),

					hs_jack_gpios);

	snd_soc_unregister_card(card);



	return 0;