sound/soc/omap/rx51.c - kernel/msm-4.19 - Gitiles

 /*
  * rx51.c  --  SoC audio for Nokia RX-51
  *
  * Copyright (C) 2008 - 2009 Nokia Corporation
  *
  * Contact: Peter Ujfalusi <peter.ujfalusi@nokia.com>
  *          Eduardo Valentin <eduardo.valentin@nokia.com>
  *          Jarkko Nikula <jhnikula@gmail.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  * 02110-1301 USA
  *
  */

 #include <linux/delay.h>
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <sound/core.h>
 #include <sound/jack.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <plat/mcbsp.h>
 #include "../codecs/tpa6130a2.h"

 #include <asm/mach-types.h>

 #include "omap-mcbsp.h"
 #include "omap-pcm.h"

 #define RX51_TVOUT_SEL_GPIO		40
 #define RX51_JACK_DETECT_GPIO		177
 #define RX51_ECI_SW_GPIO		182
 /*
  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
  */
 #define RX51_SPEAKER_AMP_TWL_GPIO	(192 + 7)

 enum {
 	RX51_JACK_DISABLED,
 	RX51_JACK_TVOUT,		/* tv-out with stereo output */
 	RX51_JACK_HP,			/* headphone: stereo output, no mic */
 	RX51_JACK_HS,			/* headset: stereo output with mic */
 };

 static int rx51_spk_func;
 static int rx51_dmic_func;
 static int rx51_jack_func;

 static void rx51_ext_control(struct snd_soc_codec *codec)
 {
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
 	int hp = 0, hs = 0, tvout = 0;

 	switch (rx51_jack_func) {
 	case RX51_JACK_TVOUT:
 		tvout = 1;
 		hp = 1;
 		break;
 	case RX51_JACK_HS:
 		hs = 1;
 	case RX51_JACK_HP:
 		hp = 1;
 		break;
 	}

 	if (rx51_spk_func)
 		snd_soc_dapm_enable_pin(dapm, "Ext Spk");
 	else
 		snd_soc_dapm_disable_pin(dapm, "Ext Spk");
 	if (rx51_dmic_func)
 		snd_soc_dapm_enable_pin(dapm, "DMic");
 	else
 		snd_soc_dapm_disable_pin(dapm, "DMic");
 	if (hp)
 		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 	else
 		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
 	if (hs)
 		snd_soc_dapm_enable_pin(dapm, "HS Mic");
 	else
 		snd_soc_dapm_disable_pin(dapm, "HS Mic");

 	gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);

 	snd_soc_dapm_sync(dapm);
 }

 static int rx51_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;

 	snd_pcm_hw_constraint_minmax(runtime,
 				     SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 	rx51_ext_control(codec);

 	return 0;
 }

 static int rx51_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	int err;

 	/* Set codec DAI configuration */
 	err = snd_soc_dai_set_fmt(codec_dai,
 				  SND_SOC_DAIFMT_DSP_A |
 				  SND_SOC_DAIFMT_IB_NF |
 				  SND_SOC_DAIFMT_CBM_CFM);
 	if (err < 0)
 		return err;

 	/* Set cpu DAI configuration */
 	err = snd_soc_dai_set_fmt(cpu_dai,
 				  SND_SOC_DAIFMT_DSP_A |
 				  SND_SOC_DAIFMT_IB_NF |
 				  SND_SOC_DAIFMT_CBM_CFM);
 	if (err < 0)
 		return err;

 	/* Set the codec system clock for DAC and ADC */
 	return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 				      SND_SOC_CLOCK_IN);
 }

 static struct snd_soc_ops rx51_ops = {
 	.startup = rx51_startup,
 	.hw_params = rx51_hw_params,
 };

 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 			struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.integer.value[0] = rx51_spk_func;

 	return 0;
 }

 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 			struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

 	if (rx51_spk_func == ucontrol->value.integer.value[0])
 		return 0;

 	rx51_spk_func = ucontrol->value.integer.value[0];
 	rx51_ext_control(codec);

 	return 1;
 }

 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 			  struct snd_kcontrol *k, int event)
 {
 	if (SND_SOC_DAPM_EVENT_ON(event))
 		gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 	else
 		gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);

 	return 0;
 }

 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 			 struct snd_kcontrol *k, int event)
 {
 	struct snd_soc_codec *codec = w->dapm->codec;

 	if (SND_SOC_DAPM_EVENT_ON(event))
 		tpa6130a2_stereo_enable(codec, 1);
 	else
 		tpa6130a2_stereo_enable(codec, 0);

 	return 0;
 }

 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 			  struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.integer.value[0] = rx51_dmic_func;

 	return 0;
 }

 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 			  struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

 	if (rx51_dmic_func == ucontrol->value.integer.value[0])
 		return 0;

 	rx51_dmic_func = ucontrol->value.integer.value[0];
 	rx51_ext_control(codec);

 	return 1;
 }

 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 			 struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.integer.value[0] = rx51_jack_func;

 	return 0;
 }

 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 			 struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

 	if (rx51_jack_func == ucontrol->value.integer.value[0])
 		return 0;

 	rx51_jack_func = ucontrol->value.integer.value[0];
 	rx51_ext_control(codec);

 	return 1;
 }

 static struct snd_soc_jack rx51_av_jack;

 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 	{
 		.gpio = RX51_JACK_DETECT_GPIO,
 		.name = "avdet-gpio",
 		.report = SND_JACK_HEADSET,
 		.invert = 1,
 		.debounce_time = 200,
 	},
 };

 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 	SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 	SND_SOC_DAPM_MIC("DMic", NULL),
 	SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
 	SND_SOC_DAPM_MIC("HS Mic", NULL),
 	SND_SOC_DAPM_LINE("FM Transmitter", NULL),
 };

 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
 	SND_SOC_DAPM_SPK("Earphone", NULL),
 };

 static const struct snd_soc_dapm_route audio_map[] = {
 	{"Ext Spk", NULL, "HPLOUT"},
 	{"Ext Spk", NULL, "HPROUT"},
 	{"Headphone Jack", NULL, "LLOUT"},
 	{"Headphone Jack", NULL, "RLOUT"},
 	{"FM Transmitter", NULL, "LLOUT"},
 	{"FM Transmitter", NULL, "RLOUT"},

 	{"DMic Rate 64", NULL, "Mic Bias 2V"},
 	{"Mic Bias 2V", NULL, "DMic"},
 };

 static const struct snd_soc_dapm_route audio_mapb[] = {
 	{"b LINE2R", NULL, "MONO_LOUT"},
 	{"Earphone", NULL, "b HPLOUT"},

 	{"LINE1L", NULL, "b Mic Bias 2.5V"},
 	{"b Mic Bias 2.5V", NULL, "HS Mic"}
 };

 static const char *spk_function[] = {"Off", "On"};
 static const char *input_function[] = {"ADC", "Digital Mic"};
 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};

 static const struct soc_enum rx51_enum[] = {
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 };

 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 	SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 		     rx51_get_spk, rx51_set_spk),
 	SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 		     rx51_get_input, rx51_set_input),
 	SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 		     rx51_get_jack, rx51_set_jack),
 	SOC_DAPM_PIN_SWITCH("FM Transmitter"),
 };

 static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
 	SOC_DAPM_PIN_SWITCH("Earphone"),
 };

 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
 	int err;

 	/* Set up NC codec pins */
 	snd_soc_dapm_nc_pin(dapm, "MIC3L");
 	snd_soc_dapm_nc_pin(dapm, "MIC3R");
 	snd_soc_dapm_nc_pin(dapm, "LINE1R");

 	/* Add RX-51 specific controls */
 	err = snd_soc_add_controls(codec, aic34_rx51_controls,
 				   ARRAY_SIZE(aic34_rx51_controls));
 	if (err < 0)
 		return err;

 	/* Add RX-51 specific widgets */
 	snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 				  ARRAY_SIZE(aic34_dapm_widgets));

 	/* Set up RX-51 specific audio path audio_map */
 	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

 	err = tpa6130a2_add_controls(codec);
 	if (err < 0)
 		return err;
 	snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);

 	snd_soc_dapm_sync(dapm);

 	/* AV jack detection */
 	err = snd_soc_jack_new(codec, "AV Jack",
 			       SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
 			       &rx51_av_jack);
 	if (err)
 		return err;
 	err = snd_soc_jack_add_gpios(&rx51_av_jack,
 				     ARRAY_SIZE(rx51_av_jack_gpios),
 				     rx51_av_jack_gpios);

 	return err;
 }

 static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
 {
 	int err;

 	err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb,
 				   ARRAY_SIZE(aic34_rx51_controlsb));
 	if (err < 0)
 		return err;

 	err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
 					ARRAY_SIZE(aic34_dapm_widgetsb));
 	if (err < 0)
 		return 0;

 	return snd_soc_dapm_add_routes(dapm, audio_mapb,
 				       ARRAY_SIZE(audio_mapb));
 }

 /* Digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link rx51_dai[] = {
 	{
 		.name = "TLV320AIC34",
 		.stream_name = "AIC34",
 		.cpu_dai_name = "omap-mcbsp-dai.1",
 		.codec_dai_name = "tlv320aic3x-hifi",
 		.platform_name = "omap-pcm-audio",
 		.codec_name = "tlv320aic3x-codec.2-0018",
 		.init = rx51_aic34_init,
 		.ops = &rx51_ops,
 	},
 };

 struct snd_soc_aux_dev rx51_aux_dev[] = {
 	{
 		.name = "TLV320AIC34b",
 		.codec_name = "tlv320aic3x-codec.2-0019",
 		.init = rx51_aic34b_init,
 	},
 };

 static struct snd_soc_codec_conf rx51_codec_conf[] = {
 	{
 		.dev_name = "tlv320aic3x-codec.2-0019",
 		.name_prefix = "b",
 	},
 };

 /* Audio card */
 static struct snd_soc_card rx51_sound_card = {
 	.name = "RX-51",
 	.dai_link = rx51_dai,
 	.num_links = ARRAY_SIZE(rx51_dai),
 	.aux_dev = rx51_aux_dev,
 	.num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
 	.codec_conf = rx51_codec_conf,
 	.num_configs = ARRAY_SIZE(rx51_codec_conf),
 };

 static struct platform_device *rx51_snd_device;

 static int __init rx51_soc_init(void)
 {
 	int err;

 	if (!machine_is_nokia_rx51())
 		return -ENODEV;

 	err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
 			       GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
 	if (err)
 		goto err_gpio_tvout_sel;
 	err = gpio_request_one(RX51_ECI_SW_GPIO,
 			       GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
 	if (err)
 		goto err_gpio_eci_sw;

 	rx51_snd_device = platform_device_alloc("soc-audio", -1);
 	if (!rx51_snd_device) {
 		err = -ENOMEM;
 		goto err1;
 	}

 	platform_set_drvdata(rx51_snd_device, &rx51_sound_card);

 	err = platform_device_add(rx51_snd_device);
 	if (err)
 		goto err2;

 	return 0;
 err2:
 	platform_device_put(rx51_snd_device);
 err1:
 	gpio_free(RX51_ECI_SW_GPIO);
 err_gpio_eci_sw:
 	gpio_free(RX51_TVOUT_SEL_GPIO);
 err_gpio_tvout_sel:

 	return err;
 }

 static void __exit rx51_soc_exit(void)
 {
 	snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 				rx51_av_jack_gpios);

 	platform_device_unregister(rx51_snd_device);
 	gpio_free(RX51_ECI_SW_GPIO);
 	gpio_free(RX51_TVOUT_SEL_GPIO);
 }

 module_init(rx51_soc_init);
 module_exit(rx51_soc_exit);

 MODULE_AUTHOR("Nokia Corporation");
 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 MODULE_LICENSE("GPL");
	/*
	* rx51.c -- SoC audio for Nokia RX-51
	*
	* Copyright (C) 2008 - 2009 Nokia Corporation
	*
	* Contact: Peter Ujfalusi <peter.ujfalusi@nokia.com>
	* Eduardo Valentin <eduardo.valentin@nokia.com>
	* Jarkko Nikula <jhnikula@gmail.com>
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License
	* version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	* 02110-1301 USA
	*
	*/

	#include <linux/delay.h>
	#include <linux/gpio.h>
	#include <linux/platform_device.h>
	#include <sound/core.h>
	#include <sound/jack.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <plat/mcbsp.h>
	#include "../codecs/tpa6130a2.h"

	#include <asm/mach-types.h>

	#include "omap-mcbsp.h"
	#include "omap-pcm.h"

	#define RX51_TVOUT_SEL_GPIO 40
	#define RX51_JACK_DETECT_GPIO 177
	#define RX51_ECI_SW_GPIO 182
	/*
	* REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
	* gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
	*/
	#define RX51_SPEAKER_AMP_TWL_GPIO (192 + 7)

	enum {
	RX51_JACK_DISABLED,
	RX51_JACK_TVOUT, /* tv-out with stereo output */
	RX51_JACK_HP, /* headphone: stereo output, no mic */
	RX51_JACK_HS, /* headset: stereo output with mic */
	};

	static int rx51_spk_func;
	static int rx51_dmic_func;
	static int rx51_jack_func;

	static void rx51_ext_control(struct snd_soc_codec *codec)
	{
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int hp = 0, hs = 0, tvout = 0;

	switch (rx51_jack_func) {
	case RX51_JACK_TVOUT:
	tvout = 1;
	hp = 1;
	break;
	case RX51_JACK_HS:
	hs = 1;
	case RX51_JACK_HP:
	hp = 1;
	break;
	}

	if (rx51_spk_func)
	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	else
	snd_soc_dapm_disable_pin(dapm, "Ext Spk");
	if (rx51_dmic_func)
	snd_soc_dapm_enable_pin(dapm, "DMic");
	else
	snd_soc_dapm_disable_pin(dapm, "DMic");
	if (hp)
	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	else
	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	if (hs)
	snd_soc_dapm_enable_pin(dapm, "HS Mic");
	else
	snd_soc_dapm_disable_pin(dapm, "HS Mic");

	gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);

	snd_soc_dapm_sync(dapm);
	}

	static int rx51_startup(struct snd_pcm_substream *substream)
	{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;

	snd_pcm_hw_constraint_minmax(runtime,
	SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
	rx51_ext_control(codec);

	return 0;
	}

	static int rx51_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	int err;

	/* Set codec DAI configuration */
	err = snd_soc_dai_set_fmt(codec_dai,
	SND_SOC_DAIFMT_DSP_A \|
	SND_SOC_DAIFMT_IB_NF \|
	SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
	return err;

	/* Set cpu DAI configuration */
	err = snd_soc_dai_set_fmt(cpu_dai,
	SND_SOC_DAIFMT_DSP_A \|
	SND_SOC_DAIFMT_IB_NF \|
	SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
	return err;

	/* Set the codec system clock for DAC and ADC */
	return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
	SND_SOC_CLOCK_IN);
	}

	static struct snd_soc_ops rx51_ops = {
	.startup = rx51_startup,
	.hw_params = rx51_hw_params,
	};

	static int rx51_get_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.integer.value[0] = rx51_spk_func;

	return 0;
	}

	static int rx51_set_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (rx51_spk_func == ucontrol->value.integer.value[0])
	return 0;

	rx51_spk_func = ucontrol->value.integer.value[0];
	rx51_ext_control(codec);

	return 1;
	}

	static int rx51_spk_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	if (SND_SOC_DAPM_EVENT_ON(event))
	gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
	else
	gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);

	return 0;
	}

	static int rx51_hp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	struct snd_soc_codec *codec = w->dapm->codec;

	if (SND_SOC_DAPM_EVENT_ON(event))
	tpa6130a2_stereo_enable(codec, 1);
	else
	tpa6130a2_stereo_enable(codec, 0);

	return 0;
	}

	static int rx51_get_input(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.integer.value[0] = rx51_dmic_func;

	return 0;
	}

	static int rx51_set_input(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (rx51_dmic_func == ucontrol->value.integer.value[0])
	return 0;

	rx51_dmic_func = ucontrol->value.integer.value[0];
	rx51_ext_control(codec);

	return 1;
	}

	static int rx51_get_jack(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.integer.value[0] = rx51_jack_func;

	return 0;
	}

	static int rx51_set_jack(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (rx51_jack_func == ucontrol->value.integer.value[0])
	return 0;

	rx51_jack_func = ucontrol->value.integer.value[0];
	rx51_ext_control(codec);

	return 1;
	}

	static struct snd_soc_jack rx51_av_jack;

	static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
	{
	.gpio = RX51_JACK_DETECT_GPIO,
	.name = "avdet-gpio",
	.report = SND_JACK_HEADSET,
	.invert = 1,
	.debounce_time = 200,
	},
	};

	static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
	SND_SOC_DAPM_MIC("DMic", NULL),
	SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
	SND_SOC_DAPM_MIC("HS Mic", NULL),
	SND_SOC_DAPM_LINE("FM Transmitter", NULL),
	};

	static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
	SND_SOC_DAPM_SPK("Earphone", NULL),
	};

	static const struct snd_soc_dapm_route audio_map[] = {
	{"Ext Spk", NULL, "HPLOUT"},
	{"Ext Spk", NULL, "HPROUT"},
	{"Headphone Jack", NULL, "LLOUT"},
	{"Headphone Jack", NULL, "RLOUT"},
	{"FM Transmitter", NULL, "LLOUT"},
	{"FM Transmitter", NULL, "RLOUT"},

	{"DMic Rate 64", NULL, "Mic Bias 2V"},
	{"Mic Bias 2V", NULL, "DMic"},
	};

	static const struct snd_soc_dapm_route audio_mapb[] = {
	{"b LINE2R", NULL, "MONO_LOUT"},
	{"Earphone", NULL, "b HPLOUT"},

	{"LINE1L", NULL, "b Mic Bias 2.5V"},
	{"b Mic Bias 2.5V", NULL, "HS Mic"}
	};

	static const char *spk_function[] = {"Off", "On"};
	static const char *input_function[] = {"ADC", "Digital Mic"};
	static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};

	static const struct soc_enum rx51_enum[] = {
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
	};

	static const struct snd_kcontrol_new aic34_rx51_controls[] = {
	SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
	rx51_get_spk, rx51_set_spk),
	SOC_ENUM_EXT("Input Select", rx51_enum[1],
	rx51_get_input, rx51_set_input),
	SOC_ENUM_EXT("Jack Function", rx51_enum[2],
	rx51_get_jack, rx51_set_jack),
	SOC_DAPM_PIN_SWITCH("FM Transmitter"),
	};

	static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
	SOC_DAPM_PIN_SWITCH("Earphone"),
	};

	static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int err;

	/* Set up NC codec pins */
	snd_soc_dapm_nc_pin(dapm, "MIC3L");
	snd_soc_dapm_nc_pin(dapm, "MIC3R");
	snd_soc_dapm_nc_pin(dapm, "LINE1R");

	/* Add RX-51 specific controls */
	err = snd_soc_add_controls(codec, aic34_rx51_controls,
	ARRAY_SIZE(aic34_rx51_controls));
	if (err < 0)
	return err;

	/* Add RX-51 specific widgets */
	snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
	ARRAY_SIZE(aic34_dapm_widgets));

	/* Set up RX-51 specific audio path audio_map */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	err = tpa6130a2_add_controls(codec);
	if (err < 0)
	return err;
	snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);

	snd_soc_dapm_sync(dapm);

	/* AV jack detection */
	err = snd_soc_jack_new(codec, "AV Jack",
	SND_JACK_HEADSET \| SND_JACK_VIDEOOUT,
	&rx51_av_jack);
	if (err)
	return err;
	err = snd_soc_jack_add_gpios(&rx51_av_jack,
	ARRAY_SIZE(rx51_av_jack_gpios),
	rx51_av_jack_gpios);

	return err;
	}

	static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
	{
	int err;

	err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb,
	ARRAY_SIZE(aic34_rx51_controlsb));
	if (err < 0)
	return err;

	err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
	ARRAY_SIZE(aic34_dapm_widgetsb));
	if (err < 0)
	return 0;

	return snd_soc_dapm_add_routes(dapm, audio_mapb,
	ARRAY_SIZE(audio_mapb));
	}

	/* Digital audio interface glue - connects codec <--> CPU */
	static struct snd_soc_dai_link rx51_dai[] = {
	{
	.name = "TLV320AIC34",
	.stream_name = "AIC34",
	.cpu_dai_name = "omap-mcbsp-dai.1",
	.codec_dai_name = "tlv320aic3x-hifi",
	.platform_name = "omap-pcm-audio",
	.codec_name = "tlv320aic3x-codec.2-0018",
	.init = rx51_aic34_init,
	.ops = &rx51_ops,
	},
	};

	struct snd_soc_aux_dev rx51_aux_dev[] = {
	{
	.name = "TLV320AIC34b",
	.codec_name = "tlv320aic3x-codec.2-0019",
	.init = rx51_aic34b_init,
	},
	};

	static struct snd_soc_codec_conf rx51_codec_conf[] = {
	{
	.dev_name = "tlv320aic3x-codec.2-0019",
	.name_prefix = "b",
	},
	};

	/* Audio card */
	static struct snd_soc_card rx51_sound_card = {
	.name = "RX-51",
	.dai_link = rx51_dai,
	.num_links = ARRAY_SIZE(rx51_dai),
	.aux_dev = rx51_aux_dev,
	.num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
	.codec_conf = rx51_codec_conf,
	.num_configs = ARRAY_SIZE(rx51_codec_conf),
	};

	static struct platform_device *rx51_snd_device;

	static int __init rx51_soc_init(void)
	{
	int err;

	if (!machine_is_nokia_rx51())
	return -ENODEV;

	err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
	GPIOF_DIR_OUT \| GPIOF_INIT_LOW, "tvout_sel");
	if (err)
	goto err_gpio_tvout_sel;
	err = gpio_request_one(RX51_ECI_SW_GPIO,
	GPIOF_DIR_OUT \| GPIOF_INIT_HIGH, "eci_sw");
	if (err)
	goto err_gpio_eci_sw;

	rx51_snd_device = platform_device_alloc("soc-audio", -1);
	if (!rx51_snd_device) {
	err = -ENOMEM;
	goto err1;
	}

	platform_set_drvdata(rx51_snd_device, &rx51_sound_card);

	err = platform_device_add(rx51_snd_device);
	if (err)
	goto err2;

	return 0;
	err2:
	platform_device_put(rx51_snd_device);
	err1:
	gpio_free(RX51_ECI_SW_GPIO);
	err_gpio_eci_sw:
	gpio_free(RX51_TVOUT_SEL_GPIO);
	err_gpio_tvout_sel:

	return err;
	}

	static void __exit rx51_soc_exit(void)
	{
	snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
	rx51_av_jack_gpios);

	platform_device_unregister(rx51_snd_device);
	gpio_free(RX51_ECI_SW_GPIO);
	gpio_free(RX51_TVOUT_SEL_GPIO);
	}

	module_init(rx51_soc_init);
	module_exit(rx51_soc_exit);

	MODULE_AUTHOR("Nokia Corporation");
	MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
	MODULE_LICENSE("GPL");