sound/soc/pxa/tosa.c - kernel/msm - Gitiles

 /*
  * tosa.c  --  SoC audio for Tosa
  *
  * Copyright 2005 Wolfson Microelectronics PLC.
  * Copyright 2005 Openedhand Ltd.
  *
  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
  *          Richard Purdie <richard@openedhand.com>
  *
  *  This program is free software; you can redistribute  it and/or modify it
  *  under  the terms of  the GNU General  Public License as published by the
  *  Free Software Foundation;  either version 2 of the  License, or (at your
  *  option) any later version.
  *
  * GPIO's
  *  1 - Jack Insertion
  *  5 - Hookswitch (headset answer/hang up switch)
  *
  */

 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/gpio.h>

 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>

 #include <asm/mach-types.h>
 #include <mach/tosa.h>
 #include <mach/pxa-regs.h>
 #include <mach/hardware.h>
 #include <mach/audio.h>

 #include "../codecs/wm9712.h"
 #include "pxa2xx-pcm.h"
 #include "pxa2xx-ac97.h"

 static struct snd_soc_card tosa;

 #define TOSA_HP        0
 #define TOSA_MIC_INT   1
 #define TOSA_HEADSET   2
 #define TOSA_HP_OFF    3
 #define TOSA_SPK_ON    0
 #define TOSA_SPK_OFF   1

 static int tosa_jack_func;
 static int tosa_spk_func;

 static void tosa_ext_control(struct snd_soc_codec *codec)
 {
 	/* set up jack connection */
 	switch (tosa_jack_func) {
 	case TOSA_HP:
 		snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
 		snd_soc_dapm_enable_pin(codec, "Headphone Jack");
 		snd_soc_dapm_disable_pin(codec, "Headset Jack");
 		break;
 	case TOSA_MIC_INT:
 		snd_soc_dapm_enable_pin(codec, "Mic (Internal)");
 		snd_soc_dapm_disable_pin(codec, "Headphone Jack");
 		snd_soc_dapm_disable_pin(codec, "Headset Jack");
 		break;
 	case TOSA_HEADSET:
 		snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
 		snd_soc_dapm_disable_pin(codec, "Headphone Jack");
 		snd_soc_dapm_enable_pin(codec, "Headset Jack");
 		break;
 	}

 	if (tosa_spk_func == TOSA_SPK_ON)
 		snd_soc_dapm_enable_pin(codec, "Speaker");
 	else
 		snd_soc_dapm_disable_pin(codec, "Speaker");

 	snd_soc_dapm_sync(codec);
 }

 static int tosa_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->socdev->card->codec;

 	/* check the jack status at stream startup */
 	tosa_ext_control(codec);
 	return 0;
 }

 static struct snd_soc_ops tosa_ops = {
 	.startup = tosa_startup,
 };

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

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

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

 	tosa_jack_func = ucontrol->value.integer.value[0];
 	tosa_ext_control(codec);
 	return 1;
 }

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

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

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

 	tosa_spk_func = ucontrol->value.integer.value[0];
 	tosa_ext_control(codec);
 	return 1;
 }

 /* tosa dapm event handlers */
 static int tosa_hp_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *k, int event)
 {
 	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
 	return 0;
 }

 /* tosa machine dapm widgets */
 static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
 SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
 SND_SOC_DAPM_HP("Headset Jack", NULL),
 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
 SND_SOC_DAPM_SPK("Speaker", NULL),
 };

 /* tosa audio map */
 static const struct snd_soc_dapm_route audio_map[] = {

 	/* headphone connected to HPOUTL, HPOUTR */
 	{"Headphone Jack", NULL, "HPOUTL"},
 	{"Headphone Jack", NULL, "HPOUTR"},

 	/* ext speaker connected to LOUT2, ROUT2 */
 	{"Speaker", NULL, "LOUT2"},
 	{"Speaker", NULL, "ROUT2"},

 	/* internal mic is connected to mic1, mic2 differential - with bias */
 	{"MIC1", NULL, "Mic Bias"},
 	{"MIC2", NULL, "Mic Bias"},
 	{"Mic Bias", NULL, "Mic (Internal)"},

 	/* headset is connected to HPOUTR, and LINEINR with bias */
 	{"Headset Jack", NULL, "HPOUTR"},
 	{"LINEINR", NULL, "Mic Bias"},
 	{"Mic Bias", NULL, "Headset Jack"},
 };

 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
 	"Off"};
 static const char *spk_function[] = {"On", "Off"};
 static const struct soc_enum tosa_enum[] = {
 	SOC_ENUM_SINGLE_EXT(5, jack_function),
 	SOC_ENUM_SINGLE_EXT(2, spk_function),
 };

 static const struct snd_kcontrol_new tosa_controls[] = {
 	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
 		tosa_set_jack),
 	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
 		tosa_set_spk),
 };

 static int tosa_ac97_init(struct snd_soc_codec *codec)
 {
 	int err;

 	snd_soc_dapm_nc_pin(codec, "OUT3");
 	snd_soc_dapm_nc_pin(codec, "MONOOUT");

 	/* add tosa specific controls */
 	err = snd_soc_add_controls(codec, tosa_controls,
 				ARRAY_SIZE(tosa_controls));
 	if (err < 0)
 		return err;

 	/* add tosa specific widgets */
 	snd_soc_dapm_new_controls(codec, tosa_dapm_widgets,
 				  ARRAY_SIZE(tosa_dapm_widgets));

 	/* set up tosa specific audio path audio_map */
 	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

 	snd_soc_dapm_sync(codec);
 	return 0;
 }

 static struct snd_soc_dai_link tosa_dai[] = {
 {
 	.name = "AC97",
 	.stream_name = "AC97 HiFi",
 	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
 	.codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
 	.init = tosa_ac97_init,
 	.ops = &tosa_ops,
 },
 {
 	.name = "AC97 Aux",
 	.stream_name = "AC97 Aux",
 	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
 	.codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
 	.ops = &tosa_ops,
 },
 };

 static int tosa_probe(struct platform_device *dev)
 {
 	int ret;

 	ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack");
 	if (ret)
 		return ret;
 	ret = gpio_direction_output(TOSA_GPIO_L_MUTE, 0);
 	if (ret)
 		gpio_free(TOSA_GPIO_L_MUTE);

 	return ret;
 }

 static int tosa_remove(struct platform_device *dev)
 {
 	gpio_free(TOSA_GPIO_L_MUTE);
 	return 0;
 }

 static struct snd_soc_card tosa = {
 	.name = "Tosa",
 	.platform = &pxa2xx_soc_platform,
 	.dai_link = tosa_dai,
 	.num_links = ARRAY_SIZE(tosa_dai),
 	.probe = tosa_probe,
 	.remove = tosa_remove,
 };

 static struct snd_soc_device tosa_snd_devdata = {
 	.card = &tosa,
 	.codec_dev = &soc_codec_dev_wm9712,
 };

 static struct platform_device *tosa_snd_device;

 static int __init tosa_init(void)
 {
 	int ret;

 	if (!machine_is_tosa())
 		return -ENODEV;

 	tosa_snd_device = platform_device_alloc("soc-audio", -1);
 	if (!tosa_snd_device) {
 		ret = -ENOMEM;
 		goto err_alloc;
 	}

 	platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata);
 	tosa_snd_devdata.dev = &tosa_snd_device->dev;
 	ret = platform_device_add(tosa_snd_device);

 	if (!ret)
 		return 0;

 	platform_device_put(tosa_snd_device);

 err_alloc:
 	return ret;
 }

 static void __exit tosa_exit(void)
 {
 	platform_device_unregister(tosa_snd_device);
 }

 module_init(tosa_init);
 module_exit(tosa_exit);

 /* Module information */
 MODULE_AUTHOR("Richard Purdie");
 MODULE_DESCRIPTION("ALSA SoC Tosa");
 MODULE_LICENSE("GPL");
	/*
	* tosa.c -- SoC audio for Tosa
	*
	* Copyright 2005 Wolfson Microelectronics PLC.
	* Copyright 2005 Openedhand Ltd.
	*
	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
	* Richard Purdie <richard@openedhand.com>
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	* GPIO's
	* 1 - Jack Insertion
	* 5 - Hookswitch (headset answer/hang up switch)
	*
	*/

	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/device.h>
	#include <linux/gpio.h>

	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <sound/soc-dapm.h>

	#include <asm/mach-types.h>
	#include <mach/tosa.h>
	#include <mach/pxa-regs.h>
	#include <mach/hardware.h>
	#include <mach/audio.h>

	#include "../codecs/wm9712.h"
	#include "pxa2xx-pcm.h"
	#include "pxa2xx-ac97.h"

	static struct snd_soc_card tosa;

	#define TOSA_HP 0
	#define TOSA_MIC_INT 1
	#define TOSA_HEADSET 2
	#define TOSA_HP_OFF 3
	#define TOSA_SPK_ON 0
	#define TOSA_SPK_OFF 1

	static int tosa_jack_func;
	static int tosa_spk_func;

	static void tosa_ext_control(struct snd_soc_codec *codec)
	{
	/* set up jack connection */
	switch (tosa_jack_func) {
	case TOSA_HP:
	snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	snd_soc_dapm_disable_pin(codec, "Headset Jack");
	break;
	case TOSA_MIC_INT:
	snd_soc_dapm_enable_pin(codec, "Mic (Internal)");
	snd_soc_dapm_disable_pin(codec, "Headphone Jack");
	snd_soc_dapm_disable_pin(codec, "Headset Jack");
	break;
	case TOSA_HEADSET:
	snd_soc_dapm_disable_pin(codec, "Mic (Internal)");
	snd_soc_dapm_disable_pin(codec, "Headphone Jack");
	snd_soc_dapm_enable_pin(codec, "Headset Jack");
	break;
	}

	if (tosa_spk_func == TOSA_SPK_ON)
	snd_soc_dapm_enable_pin(codec, "Speaker");
	else
	snd_soc_dapm_disable_pin(codec, "Speaker");

	snd_soc_dapm_sync(codec);
	}

	static int tosa_startup(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->socdev->card->codec;

	/* check the jack status at stream startup */
	tosa_ext_control(codec);
	return 0;
	}

	static struct snd_soc_ops tosa_ops = {
	.startup = tosa_startup,
	};

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

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

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

	tosa_jack_func = ucontrol->value.integer.value[0];
	tosa_ext_control(codec);
	return 1;
	}

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

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

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

	tosa_spk_func = ucontrol->value.integer.value[0];
	tosa_ext_control(codec);
	return 1;
	}

	/* tosa dapm event handlers */
	static int tosa_hp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
	return 0;
	}

	/* tosa machine dapm widgets */
	static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
	SND_SOC_DAPM_HP("Headset Jack", NULL),
	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	};

	/* tosa audio map */
	static const struct snd_soc_dapm_route audio_map[] = {

	/* headphone connected to HPOUTL, HPOUTR */
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Headphone Jack", NULL, "HPOUTR"},

	/* ext speaker connected to LOUT2, ROUT2 */
	{"Speaker", NULL, "LOUT2"},
	{"Speaker", NULL, "ROUT2"},

	/* internal mic is connected to mic1, mic2 differential - with bias */
	{"MIC1", NULL, "Mic Bias"},
	{"MIC2", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Mic (Internal)"},

	/* headset is connected to HPOUTR, and LINEINR with bias */
	{"Headset Jack", NULL, "HPOUTR"},
	{"LINEINR", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Headset Jack"},
	};

	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	"Off"};
	static const char *spk_function[] = {"On", "Off"};
	static const struct soc_enum tosa_enum[] = {
	SOC_ENUM_SINGLE_EXT(5, jack_function),
	SOC_ENUM_SINGLE_EXT(2, spk_function),
	};

	static const struct snd_kcontrol_new tosa_controls[] = {
	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
	tosa_set_jack),
	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
	tosa_set_spk),
	};

	static int tosa_ac97_init(struct snd_soc_codec *codec)
	{
	int err;

	snd_soc_dapm_nc_pin(codec, "OUT3");
	snd_soc_dapm_nc_pin(codec, "MONOOUT");

	/* add tosa specific controls */
	err = snd_soc_add_controls(codec, tosa_controls,
	ARRAY_SIZE(tosa_controls));
	if (err < 0)
	return err;

	/* add tosa specific widgets */
	snd_soc_dapm_new_controls(codec, tosa_dapm_widgets,
	ARRAY_SIZE(tosa_dapm_widgets));

	/* set up tosa specific audio path audio_map */
	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync(codec);
	return 0;
	}

	static struct snd_soc_dai_link tosa_dai[] = {
	{
	.name = "AC97",
	.stream_name = "AC97 HiFi",
	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
	.codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
	.init = tosa_ac97_init,
	.ops = &tosa_ops,
	},
	{
	.name = "AC97 Aux",
	.stream_name = "AC97 Aux",
	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
	.codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
	.ops = &tosa_ops,
	},
	};

	static int tosa_probe(struct platform_device *dev)
	{
	int ret;

	ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack");
	if (ret)
	return ret;
	ret = gpio_direction_output(TOSA_GPIO_L_MUTE, 0);
	if (ret)
	gpio_free(TOSA_GPIO_L_MUTE);

	return ret;
	}

	static int tosa_remove(struct platform_device *dev)
	{
	gpio_free(TOSA_GPIO_L_MUTE);
	return 0;
	}

	static struct snd_soc_card tosa = {
	.name = "Tosa",
	.platform = &pxa2xx_soc_platform,
	.dai_link = tosa_dai,
	.num_links = ARRAY_SIZE(tosa_dai),
	.probe = tosa_probe,
	.remove = tosa_remove,
	};

	static struct snd_soc_device tosa_snd_devdata = {
	.card = &tosa,
	.codec_dev = &soc_codec_dev_wm9712,
	};

	static struct platform_device *tosa_snd_device;

	static int __init tosa_init(void)
	{
	int ret;

	if (!machine_is_tosa())
	return -ENODEV;

	tosa_snd_device = platform_device_alloc("soc-audio", -1);
	if (!tosa_snd_device) {
	ret = -ENOMEM;
	goto err_alloc;
	}

	platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata);
	tosa_snd_devdata.dev = &tosa_snd_device->dev;
	ret = platform_device_add(tosa_snd_device);

	if (!ret)
	return 0;

	platform_device_put(tosa_snd_device);

	err_alloc:
	return ret;
	}

	static void __exit tosa_exit(void)
	{
	platform_device_unregister(tosa_snd_device);
	}

	module_init(tosa_init);
	module_exit(tosa_exit);

	/* Module information */
	MODULE_AUTHOR("Richard Purdie");
	MODULE_DESCRIPTION("ALSA SoC Tosa");
	MODULE_LICENSE("GPL");