sound/soc/pxa/magician.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * SoC audio for HTC Magician
  *
  * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
  *
  * based on spitz.c,
  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
  *          Richard Purdie <richard@openedhand.com>
  */

 #include <linux/module.h>
 #include <linux/timer.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/i2c.h>

 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>

 #include <asm/mach-types.h>
 #include "../codecs/uda1380.h"
 #include "pxa2xx-i2s.h"
 #include "pxa-ssp.h"

 #define MAGICIAN_MIC       0
 #define MAGICIAN_MIC_EXT   1

 static int magician_hp_switch;
 static int magician_spk_switch = 1;
 static int magician_in_sel = MAGICIAN_MIC;

 static struct gpio_desc *gpiod_spk_power, *gpiod_ep_power, *gpiod_mic_power;
 static struct gpio_desc *gpiod_in_sel0, *gpiod_in_sel1;

 static void magician_ext_control(struct snd_soc_dapm_context *dapm)
 {

 	snd_soc_dapm_mutex_lock(dapm);

 	if (magician_spk_switch)
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
 	else
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
 	if (magician_hp_switch)
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
 	else
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");

 	switch (magician_in_sel) {
 	case MAGICIAN_MIC:
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
 		break;
 	case MAGICIAN_MIC_EXT:
 		snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
 		snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
 		break;
 	}

 	snd_soc_dapm_sync_unlocked(dapm);

 	snd_soc_dapm_mutex_unlock(dapm);
 }

 static int magician_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);

 	/* check the jack status at stream startup */
 	magician_ext_control(&rtd->card->dapm);

 	return 0;
 }

 /*
  * Magician uses SSP port for playback.
  */
 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
 				       struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	unsigned int width;
 	int ret = 0;

 	/* set codec DAI configuration */
 	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
 			SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BC_FC);
 	if (ret < 0)
 		return ret;

 	/* set cpu DAI configuration */
 	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
 			SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_BP_FP);
 	if (ret < 0)
 		return ret;

 	width = snd_pcm_format_physical_width(params_format(params));
 	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
 	if (ret < 0)
 		return ret;

 	/* set audio clock as clock source */
 	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
 			SND_SOC_CLOCK_OUT);
 	if (ret < 0)
 		return ret;

 	return 0;
 }

 /*
  * Magician uses I2S for capture.
  */
 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
 				      struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	int ret = 0;

 	/* set codec DAI configuration */
 	ret = snd_soc_dai_set_fmt(codec_dai,
 			SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_BC_FC);
 	if (ret < 0)
 		return ret;

 	/* set cpu DAI configuration */
 	ret = snd_soc_dai_set_fmt(cpu_dai,
 			SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_BP_FP);
 	if (ret < 0)
 		return ret;

 	/* set the I2S system clock as output */
 	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
 			SND_SOC_CLOCK_OUT);
 	if (ret < 0)
 		return ret;

 	return 0;
 }

 static const struct snd_soc_ops magician_capture_ops = {
 	.startup = magician_startup,
 	.hw_params = magician_capture_hw_params,
 };

 static const struct snd_soc_ops magician_playback_ops = {
 	.startup = magician_startup,
 	.hw_params = magician_playback_hw_params,
 };

 static int magician_get_hp(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.integer.value[0] = magician_hp_switch;
 	return 0;
 }

 static int magician_set_hp(struct snd_kcontrol *kcontrol,
 			     struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

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

 	magician_hp_switch = ucontrol->value.integer.value[0];
 	magician_ext_control(&card->dapm);
 	return 1;
 }

 static int magician_get_spk(struct snd_kcontrol *kcontrol,
 			    struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.integer.value[0] = magician_spk_switch;
 	return 0;
 }

 static int magician_set_spk(struct snd_kcontrol *kcontrol,
 			    struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

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

 	magician_spk_switch = ucontrol->value.integer.value[0];
 	magician_ext_control(&card->dapm);
 	return 1;
 }

 static int magician_get_input(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.enumerated.item[0] = magician_in_sel;
 	return 0;
 }

 static int magician_set_input(struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol)
 {
 	if (magician_in_sel == ucontrol->value.enumerated.item[0])
 		return 0;

 	magician_in_sel = ucontrol->value.enumerated.item[0];

 	switch (magician_in_sel) {
 	case MAGICIAN_MIC:
 		gpiod_set_value(gpiod_in_sel1, 1);
 		break;
 	case MAGICIAN_MIC_EXT:
 		gpiod_set_value(gpiod_in_sel1, 0);
 	}

 	return 1;
 }

 static int magician_spk_power(struct snd_soc_dapm_widget *w,
 				struct snd_kcontrol *k, int event)
 {
 	gpiod_set_value(gpiod_spk_power, SND_SOC_DAPM_EVENT_ON(event));
 	return 0;
 }

 static int magician_hp_power(struct snd_soc_dapm_widget *w,
 				struct snd_kcontrol *k, int event)
 {
 	gpiod_set_value(gpiod_ep_power, SND_SOC_DAPM_EVENT_ON(event));
 	return 0;
 }

 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
 				struct snd_kcontrol *k, int event)
 {
 	gpiod_set_value(gpiod_mic_power, SND_SOC_DAPM_EVENT_ON(event));
 	return 0;
 }

 /* magician machine dapm widgets */
 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
 	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
 	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
 	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
 };

 /* magician machine audio_map */
 static const struct snd_soc_dapm_route audio_map[] = {

 	/* Headphone connected to VOUTL, VOUTR */
 	{"Headphone Jack", NULL, "VOUTL"},
 	{"Headphone Jack", NULL, "VOUTR"},

 	/* Speaker connected to VOUTL, VOUTR */
 	{"Speaker", NULL, "VOUTL"},
 	{"Speaker", NULL, "VOUTR"},

 	/* Mics are connected to VINM */
 	{"VINM", NULL, "Headset Mic"},
 	{"VINM", NULL, "Call Mic"},
 };

 static const char * const input_select[] = {"Call Mic", "Headset Mic"};
 static const struct soc_enum magician_in_sel_enum =
 	SOC_ENUM_SINGLE_EXT(2, input_select);

 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
 	SOC_SINGLE_BOOL_EXT("Headphone Switch",
 			(unsigned long)&magician_hp_switch,
 			magician_get_hp, magician_set_hp),
 	SOC_SINGLE_BOOL_EXT("Speaker Switch",
 			(unsigned long)&magician_spk_switch,
 			magician_get_spk, magician_set_spk),
 	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
 			magician_get_input, magician_set_input),
 };

 /* magician digital audio interface glue - connects codec <--> CPU */
 SND_SOC_DAILINK_DEFS(playback,
 	DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.0")),
 	DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
 				      "uda1380-hifi-playback")),
 	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));

 SND_SOC_DAILINK_DEFS(capture,
 	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
 	DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
 				      "uda1380-hifi-capture")),
 	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));

 static struct snd_soc_dai_link magician_dai[] = {
 {
 	.name = "uda1380",
 	.stream_name = "UDA1380 Playback",
 	.ops = &magician_playback_ops,
 	SND_SOC_DAILINK_REG(playback),
 },
 {
 	.name = "uda1380",
 	.stream_name = "UDA1380 Capture",
 	.ops = &magician_capture_ops,
 	SND_SOC_DAILINK_REG(capture),
 }
 };

 /* magician audio machine driver */
 static struct snd_soc_card snd_soc_card_magician = {
 	.name = "Magician",
 	.owner = THIS_MODULE,
 	.dai_link = magician_dai,
 	.num_links = ARRAY_SIZE(magician_dai),

 	.controls = uda1380_magician_controls,
 	.num_controls = ARRAY_SIZE(uda1380_magician_controls),
 	.dapm_widgets = uda1380_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
 	.dapm_routes = audio_map,
 	.num_dapm_routes = ARRAY_SIZE(audio_map),
 	.fully_routed = true,
 };

 static int magician_audio_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;

 	gpiod_spk_power = devm_gpiod_get(dev, "SPK_POWER", GPIOD_OUT_LOW);
 	if (IS_ERR(gpiod_spk_power))
 		return PTR_ERR(gpiod_spk_power);
 	gpiod_ep_power = devm_gpiod_get(dev, "EP_POWER", GPIOD_OUT_LOW);
 	if (IS_ERR(gpiod_ep_power))
 		return PTR_ERR(gpiod_ep_power);
 	gpiod_mic_power = devm_gpiod_get(dev, "MIC_POWER", GPIOD_OUT_LOW);
 	if (IS_ERR(gpiod_mic_power))
 		return PTR_ERR(gpiod_mic_power);
 	gpiod_in_sel0 = devm_gpiod_get(dev, "IN_SEL0", GPIOD_OUT_HIGH);
 	if (IS_ERR(gpiod_in_sel0))
 		return PTR_ERR(gpiod_in_sel0);
 	gpiod_in_sel1 = devm_gpiod_get(dev, "IN_SEL1", GPIOD_OUT_LOW);
 	if (IS_ERR(gpiod_in_sel1))
 		return PTR_ERR(gpiod_in_sel1);

 	snd_soc_card_magician.dev = &pdev->dev;
 	return devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_magician);
 }

 static struct platform_driver magician_audio_driver = {
 	.driver.name = "magician-audio",
 	.driver.pm = &snd_soc_pm_ops,
 	.probe = magician_audio_probe,
 };
 module_platform_driver(magician_audio_driver);

 MODULE_AUTHOR("Philipp Zabel");
 MODULE_DESCRIPTION("ALSA SoC Magician");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:magician-audio");
	// SPDX-License-Identifier: GPL-2.0-or-later
	/*
	* SoC audio for HTC Magician
	*
	* Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
	*
	* based on spitz.c,
	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
	* Richard Purdie <richard@openedhand.com>
	*/

	#include <linux/module.h>
	#include <linux/timer.h>
	#include <linux/interrupt.h>
	#include <linux/platform_device.h>
	#include <linux/delay.h>
	#include <linux/gpio/consumer.h>
	#include <linux/i2c.h>

	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>
	#include <sound/soc.h>

	#include <asm/mach-types.h>
	#include "../codecs/uda1380.h"
	#include "pxa2xx-i2s.h"
	#include "pxa-ssp.h"

	#define MAGICIAN_MIC 0
	#define MAGICIAN_MIC_EXT 1

	static int magician_hp_switch;
	static int magician_spk_switch = 1;
	static int magician_in_sel = MAGICIAN_MIC;

	static struct gpio_desc gpiod_spk_power, gpiod_ep_power, *gpiod_mic_power;
	static struct gpio_desc gpiod_in_sel0, gpiod_in_sel1;

	static void magician_ext_control(struct snd_soc_dapm_context *dapm)
	{

	snd_soc_dapm_mutex_lock(dapm);

	if (magician_spk_switch)
	snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
	else
	snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
	if (magician_hp_switch)
	snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
	else
	snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");

	switch (magician_in_sel) {
	case MAGICIAN_MIC:
	snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
	snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
	break;
	case MAGICIAN_MIC_EXT:
	snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
	snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
	break;
	}

	snd_soc_dapm_sync_unlocked(dapm);

	snd_soc_dapm_mutex_unlock(dapm);
	}

	static int magician_startup(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);

	/* check the jack status at stream startup */
	magician_ext_control(&rtd->card->dapm);

	return 0;
	}

	/*
	* Magician uses SSP port for playback.
	*/
	static int magician_playback_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	unsigned int width;
	int ret = 0;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB \|
	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_BC_FC);
	if (ret < 0)
	return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A \|
	SND_SOC_DAIFMT_NB_IF \| SND_SOC_DAIFMT_BP_FP);
	if (ret < 0)
	return ret;

	width = snd_pcm_format_physical_width(params_format(params));
	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
	if (ret < 0)
	return ret;

	/* set audio clock as clock source */
	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
	SND_SOC_CLOCK_OUT);
	if (ret < 0)
	return ret;

	return 0;
	}

	/*
	* Magician uses I2S for capture.
	*/
	static int magician_capture_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
	{
	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
	int ret = 0;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai,
	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_BC_FC);
	if (ret < 0)
	return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai,
	SND_SOC_DAIFMT_MSB \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_BP_FP);
	if (ret < 0)
	return ret;

	/* set the I2S system clock as output */
	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	SND_SOC_CLOCK_OUT);
	if (ret < 0)
	return ret;

	return 0;
	}

	static const struct snd_soc_ops magician_capture_ops = {
	.startup = magician_startup,
	.hw_params = magician_capture_hw_params,
	};

	static const struct snd_soc_ops magician_playback_ops = {
	.startup = magician_startup,
	.hw_params = magician_playback_hw_params,
	};

	static int magician_get_hp(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.integer.value[0] = magician_hp_switch;
	return 0;
	}

	static int magician_set_hp(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

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

	magician_hp_switch = ucontrol->value.integer.value[0];
	magician_ext_control(&card->dapm);
	return 1;
	}

	static int magician_get_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.integer.value[0] = magician_spk_switch;
	return 0;
	}

	static int magician_set_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

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

	magician_spk_switch = ucontrol->value.integer.value[0];
	magician_ext_control(&card->dapm);
	return 1;
	}

	static int magician_get_input(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.enumerated.item[0] = magician_in_sel;
	return 0;
	}

	static int magician_set_input(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	if (magician_in_sel == ucontrol->value.enumerated.item[0])
	return 0;

	magician_in_sel = ucontrol->value.enumerated.item[0];

	switch (magician_in_sel) {
	case MAGICIAN_MIC:
	gpiod_set_value(gpiod_in_sel1, 1);
	break;
	case MAGICIAN_MIC_EXT:
	gpiod_set_value(gpiod_in_sel1, 0);
	}

	return 1;
	}

	static int magician_spk_power(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	gpiod_set_value(gpiod_spk_power, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
	}

	static int magician_hp_power(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	gpiod_set_value(gpiod_ep_power, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
	}

	static int magician_mic_bias(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	gpiod_set_value(gpiod_mic_power, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
	}

	/* magician machine dapm widgets */
	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
	SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
	SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
	SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
	};

	/* magician machine audio_map */
	static const struct snd_soc_dapm_route audio_map[] = {

	/* Headphone connected to VOUTL, VOUTR */
	{"Headphone Jack", NULL, "VOUTL"},
	{"Headphone Jack", NULL, "VOUTR"},

	/* Speaker connected to VOUTL, VOUTR */
	{"Speaker", NULL, "VOUTL"},
	{"Speaker", NULL, "VOUTR"},

	/* Mics are connected to VINM */
	{"VINM", NULL, "Headset Mic"},
	{"VINM", NULL, "Call Mic"},
	};

	static const char * const input_select[] = {"Call Mic", "Headset Mic"};
	static const struct soc_enum magician_in_sel_enum =
	SOC_ENUM_SINGLE_EXT(2, input_select);

	static const struct snd_kcontrol_new uda1380_magician_controls[] = {
	SOC_SINGLE_BOOL_EXT("Headphone Switch",
	(unsigned long)&magician_hp_switch,
	magician_get_hp, magician_set_hp),
	SOC_SINGLE_BOOL_EXT("Speaker Switch",
	(unsigned long)&magician_spk_switch,
	magician_get_spk, magician_set_spk),
	SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
	magician_get_input, magician_set_input),
	};

	/* magician digital audio interface glue - connects codec <--> CPU */
	SND_SOC_DAILINK_DEFS(playback,
	DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.0")),
	DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
	"uda1380-hifi-playback")),
	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));

	SND_SOC_DAILINK_DEFS(capture,
	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
	DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
	"uda1380-hifi-capture")),
	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));

	static struct snd_soc_dai_link magician_dai[] = {
	{
	.name = "uda1380",
	.stream_name = "UDA1380 Playback",
	.ops = &magician_playback_ops,
	SND_SOC_DAILINK_REG(playback),
	},
	{
	.name = "uda1380",
	.stream_name = "UDA1380 Capture",
	.ops = &magician_capture_ops,
	SND_SOC_DAILINK_REG(capture),
	}
	};

	/* magician audio machine driver */
	static struct snd_soc_card snd_soc_card_magician = {
	.name = "Magician",
	.owner = THIS_MODULE,
	.dai_link = magician_dai,
	.num_links = ARRAY_SIZE(magician_dai),

	.controls = uda1380_magician_controls,
	.num_controls = ARRAY_SIZE(uda1380_magician_controls),
	.dapm_widgets = uda1380_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
	};

	static int magician_audio_probe(struct platform_device *pdev)
	{
	struct device *dev = &pdev->dev;

	gpiod_spk_power = devm_gpiod_get(dev, "SPK_POWER", GPIOD_OUT_LOW);
	if (IS_ERR(gpiod_spk_power))
	return PTR_ERR(gpiod_spk_power);
	gpiod_ep_power = devm_gpiod_get(dev, "EP_POWER", GPIOD_OUT_LOW);
	if (IS_ERR(gpiod_ep_power))
	return PTR_ERR(gpiod_ep_power);
	gpiod_mic_power = devm_gpiod_get(dev, "MIC_POWER", GPIOD_OUT_LOW);
	if (IS_ERR(gpiod_mic_power))
	return PTR_ERR(gpiod_mic_power);
	gpiod_in_sel0 = devm_gpiod_get(dev, "IN_SEL0", GPIOD_OUT_HIGH);
	if (IS_ERR(gpiod_in_sel0))
	return PTR_ERR(gpiod_in_sel0);
	gpiod_in_sel1 = devm_gpiod_get(dev, "IN_SEL1", GPIOD_OUT_LOW);
	if (IS_ERR(gpiod_in_sel1))
	return PTR_ERR(gpiod_in_sel1);

	snd_soc_card_magician.dev = &pdev->dev;
	return devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_magician);
	}

	static struct platform_driver magician_audio_driver = {
	.driver.name = "magician-audio",
	.driver.pm = &snd_soc_pm_ops,
	.probe = magician_audio_probe,
	};
	module_platform_driver(magician_audio_driver);

	MODULE_AUTHOR("Philipp Zabel");
	MODULE_DESCRIPTION("ALSA SoC Magician");
	MODULE_LICENSE("GPL");
	MODULE_ALIAS("platform:magician-audio");