sound/soc/pxa/poodle.c - kernel/msm-4.9 - Gitiles

 /*
  * poodle.c  --  SoC audio for Poodle
  *
  * 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.
  *
  */

 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/timer.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>

 #include <asm/mach-types.h>
 #include <asm/hardware/locomo.h>
 #include <mach/poodle.h>
 #include <mach/audio.h>

 #include "../codecs/wm8731.h"
 #include "pxa2xx-i2s.h"

 #define POODLE_HP        1
 #define POODLE_HP_OFF    0
 #define POODLE_SPK_ON    1
 #define POODLE_SPK_OFF   0

  /* audio clock in Hz - rounded from 12.235MHz */
 #define POODLE_AUDIO_CLOCK 12288000

 static int poodle_jack_func;
 static int poodle_spk_func;

 static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
 {
 	/* set up jack connection */
 	if (poodle_jack_func == POODLE_HP) {
 		/* set = unmute headphone */
 		locomo_gpio_write(&poodle_locomo_device.dev,
 			POODLE_LOCOMO_GPIO_MUTE_L, 1);
 		locomo_gpio_write(&poodle_locomo_device.dev,
 			POODLE_LOCOMO_GPIO_MUTE_R, 1);
 		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 	} else {
 		locomo_gpio_write(&poodle_locomo_device.dev,
 			POODLE_LOCOMO_GPIO_MUTE_L, 0);
 		locomo_gpio_write(&poodle_locomo_device.dev,
 			POODLE_LOCOMO_GPIO_MUTE_R, 0);
 		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
 	}

 	/* set the enpoints to their new connetion states */
 	if (poodle_spk_func == POODLE_SPK_ON)
 		snd_soc_dapm_enable_pin(dapm, "Ext Spk");
 	else
 		snd_soc_dapm_disable_pin(dapm, "Ext Spk");

 	/* signal a DAPM event */
 	snd_soc_dapm_sync(dapm);
 }

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

 	mutex_lock(&codec->mutex);

 	/* check the jack status at stream startup */
 	poodle_ext_control(&codec->dapm);

 	mutex_unlock(&codec->mutex);

 	return 0;
 }

 /* we need to unmute the HP at shutdown as the mute burns power on poodle */
 static void poodle_shutdown(struct snd_pcm_substream *substream)
 {
 	/* set = unmute headphone */
 	locomo_gpio_write(&poodle_locomo_device.dev,
 		POODLE_LOCOMO_GPIO_MUTE_L, 1);
 	locomo_gpio_write(&poodle_locomo_device.dev,
 		POODLE_LOCOMO_GPIO_MUTE_R, 1);
 }

 static int poodle_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;
 	unsigned int clk = 0;
 	int ret = 0;

 	switch (params_rate(params)) {
 	case 8000:
 	case 16000:
 	case 48000:
 	case 96000:
 		clk = 12288000;
 		break;
 	case 11025:
 	case 22050:
 	case 44100:
 		clk = 11289600;
 		break;
 	}

 	/* set the codec system clock for DAC and ADC */
 	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk,
 		SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		return ret;

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

 	return 0;
 }

 static struct snd_soc_ops poodle_ops = {
 	.startup = poodle_startup,
 	.hw_params = poodle_hw_params,
 	.shutdown = poodle_shutdown,
 };

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

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

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

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

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

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

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

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

 static int poodle_amp_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *k, int event)
 {
 	if (SND_SOC_DAPM_EVENT_ON(event))
 		locomo_gpio_write(&poodle_locomo_device.dev,
 			POODLE_LOCOMO_GPIO_AMP_ON, 0);
 	else
 		locomo_gpio_write(&poodle_locomo_device.dev,
 			POODLE_LOCOMO_GPIO_AMP_ON, 1);

 	return 0;
 }

 /* poodle machine dapm widgets */
 static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
 SND_SOC_DAPM_HP("Headphone Jack", NULL),
 SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event),
 };

 /* Corgi machine connections to the codec pins */
 static const struct snd_soc_dapm_route poodle_audio_map[] = {

 	/* headphone connected to LHPOUT1, RHPOUT1 */
 	{"Headphone Jack", NULL, "LHPOUT"},
 	{"Headphone Jack", NULL, "RHPOUT"},

 	/* speaker connected to LOUT, ROUT */
 	{"Ext Spk", NULL, "ROUT"},
 	{"Ext Spk", NULL, "LOUT"},
 };

 static const char *jack_function[] = {"Off", "Headphone"};
 static const char *spk_function[] = {"Off", "On"};
 static const struct soc_enum poodle_enum[] = {
 	SOC_ENUM_SINGLE_EXT(2, jack_function),
 	SOC_ENUM_SINGLE_EXT(2, spk_function),
 };

 static const struct snd_kcontrol_new wm8731_poodle_controls[] = {
 	SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack,
 		poodle_set_jack),
 	SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk,
 		poodle_set_spk),
 };

 /*
  * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
  */
 static int poodle_wm8731_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
 	struct snd_soc_dapm_context *dapm = &codec->dapm;

 	snd_soc_dapm_nc_pin(dapm, "LLINEIN");
 	snd_soc_dapm_nc_pin(dapm, "RLINEIN");
 	snd_soc_dapm_enable_pin(dapm, "MICIN");

 	return 0;
 }

 /* poodle digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link poodle_dai = {
 	.name = "WM8731",
 	.stream_name = "WM8731",
 	.cpu_dai_name = "pxa2xx-i2s",
 	.codec_dai_name = "wm8731-hifi",
 	.platform_name = "pxa-pcm-audio",
 	.codec_name = "wm8731.0-001b",
 	.init = poodle_wm8731_init,
 	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 		   SND_SOC_DAIFMT_CBS_CFS,
 	.ops = &poodle_ops,
 };

 /* poodle audio machine driver */
 static struct snd_soc_card poodle = {
 	.name = "Poodle",
 	.dai_link = &poodle_dai,
 	.num_links = 1,
 	.owner = THIS_MODULE,

 	.controls = wm8731_poodle_controls,
 	.num_controls = ARRAY_SIZE(wm8731_poodle_controls),
 	.dapm_widgets = wm8731_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
 	.dapm_routes = poodle_audio_map,
 	.num_dapm_routes = ARRAY_SIZE(poodle_audio_map),
 };

 static int poodle_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &poodle;
 	int ret;

 	locomo_gpio_set_dir(&poodle_locomo_device.dev,
 		POODLE_LOCOMO_GPIO_AMP_ON, 0);
 	/* should we mute HP at startup - burning power ?*/
 	locomo_gpio_set_dir(&poodle_locomo_device.dev,
 		POODLE_LOCOMO_GPIO_MUTE_L, 0);
 	locomo_gpio_set_dir(&poodle_locomo_device.dev,
 		POODLE_LOCOMO_GPIO_MUTE_R, 0);

 	card->dev = &pdev->dev;

 	ret = snd_soc_register_card(card);
 	if (ret)
 		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 			ret);
 	return ret;
 }

 static int poodle_remove(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = platform_get_drvdata(pdev);

 	snd_soc_unregister_card(card);
 	return 0;
 }

 static struct platform_driver poodle_driver = {
 	.driver		= {
 		.name	= "poodle-audio",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= poodle_probe,
 	.remove		= poodle_remove,
 };

 module_platform_driver(poodle_driver);

 /* Module information */
 MODULE_AUTHOR("Richard Purdie");
 MODULE_DESCRIPTION("ALSA SoC Poodle");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:poodle-audio");
	/*
	* poodle.c -- SoC audio for Poodle
	*
	* 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.
	*
	*/

	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/timer.h>
	#include <linux/i2c.h>
	#include <linux/interrupt.h>
	#include <linux/platform_device.h>
	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>

	#include <asm/mach-types.h>
	#include <asm/hardware/locomo.h>
	#include <mach/poodle.h>
	#include <mach/audio.h>

	#include "../codecs/wm8731.h"
	#include "pxa2xx-i2s.h"

	#define POODLE_HP 1
	#define POODLE_HP_OFF 0
	#define POODLE_SPK_ON 1
	#define POODLE_SPK_OFF 0

	/* audio clock in Hz - rounded from 12.235MHz */
	#define POODLE_AUDIO_CLOCK 12288000

	static int poodle_jack_func;
	static int poodle_spk_func;

	static void poodle_ext_control(struct snd_soc_dapm_context *dapm)
	{
	/* set up jack connection */
	if (poodle_jack_func == POODLE_HP) {
	/* set = unmute headphone */
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_L, 1);
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_R, 1);
	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	} else {
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_L, 0);
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_R, 0);
	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	}

	/* set the enpoints to their new connetion states */
	if (poodle_spk_func == POODLE_SPK_ON)
	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	else
	snd_soc_dapm_disable_pin(dapm, "Ext Spk");

	/* signal a DAPM event */
	snd_soc_dapm_sync(dapm);
	}

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

	mutex_lock(&codec->mutex);

	/* check the jack status at stream startup */
	poodle_ext_control(&codec->dapm);

	mutex_unlock(&codec->mutex);

	return 0;
	}

	/* we need to unmute the HP at shutdown as the mute burns power on poodle */
	static void poodle_shutdown(struct snd_pcm_substream *substream)
	{
	/* set = unmute headphone */
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_L, 1);
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_R, 1);
	}

	static int poodle_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;
	unsigned int clk = 0;
	int ret = 0;

	switch (params_rate(params)) {
	case 8000:
	case 16000:
	case 48000:
	case 96000:
	clk = 12288000;
	break;
	case 11025:
	case 22050:
	case 44100:
	clk = 11289600;
	break;
	}

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk,
	SND_SOC_CLOCK_IN);
	if (ret < 0)
	return ret;

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

	return 0;
	}

	static struct snd_soc_ops poodle_ops = {
	.startup = poodle_startup,
	.hw_params = poodle_hw_params,
	.shutdown = poodle_shutdown,
	};

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

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

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

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

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

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

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

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

	static int poodle_amp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	if (SND_SOC_DAPM_EVENT_ON(event))
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_AMP_ON, 0);
	else
	locomo_gpio_write(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_AMP_ON, 1);

	return 0;
	}

	/* poodle machine dapm widgets */
	static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event),
	};

	/* Corgi machine connections to the codec pins */
	static const struct snd_soc_dapm_route poodle_audio_map[] = {

	/* headphone connected to LHPOUT1, RHPOUT1 */
	{"Headphone Jack", NULL, "LHPOUT"},
	{"Headphone Jack", NULL, "RHPOUT"},

	/* speaker connected to LOUT, ROUT */
	{"Ext Spk", NULL, "ROUT"},
	{"Ext Spk", NULL, "LOUT"},
	};

	static const char *jack_function[] = {"Off", "Headphone"};
	static const char *spk_function[] = {"Off", "On"};
	static const struct soc_enum poodle_enum[] = {
	SOC_ENUM_SINGLE_EXT(2, jack_function),
	SOC_ENUM_SINGLE_EXT(2, spk_function),
	};

	static const struct snd_kcontrol_new wm8731_poodle_controls[] = {
	SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack,
	poodle_set_jack),
	SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk,
	poodle_set_spk),
	};

	/*
	* Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
	*/
	static int poodle_wm8731_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	snd_soc_dapm_nc_pin(dapm, "LLINEIN");
	snd_soc_dapm_nc_pin(dapm, "RLINEIN");
	snd_soc_dapm_enable_pin(dapm, "MICIN");

	return 0;
	}

	/* poodle digital audio interface glue - connects codec <--> CPU */
	static struct snd_soc_dai_link poodle_dai = {
	.name = "WM8731",
	.stream_name = "WM8731",
	.cpu_dai_name = "pxa2xx-i2s",
	.codec_dai_name = "wm8731-hifi",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm8731.0-001b",
	.init = poodle_wm8731_init,
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ops = &poodle_ops,
	};

	/* poodle audio machine driver */
	static struct snd_soc_card poodle = {
	.name = "Poodle",
	.dai_link = &poodle_dai,
	.num_links = 1,
	.owner = THIS_MODULE,

	.controls = wm8731_poodle_controls,
	.num_controls = ARRAY_SIZE(wm8731_poodle_controls),
	.dapm_widgets = wm8731_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
	.dapm_routes = poodle_audio_map,
	.num_dapm_routes = ARRAY_SIZE(poodle_audio_map),
	};

	static int poodle_probe(struct platform_device *pdev)
	{
	struct snd_soc_card *card = &poodle;
	int ret;

	locomo_gpio_set_dir(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_AMP_ON, 0);
	/* should we mute HP at startup - burning power ?*/
	locomo_gpio_set_dir(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_L, 0);
	locomo_gpio_set_dir(&poodle_locomo_device.dev,
	POODLE_LOCOMO_GPIO_MUTE_R, 0);

	card->dev = &pdev->dev;

	ret = snd_soc_register_card(card);
	if (ret)
	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	ret);
	return ret;
	}

	static int poodle_remove(struct platform_device *pdev)
	{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	snd_soc_unregister_card(card);
	return 0;
	}

	static struct platform_driver poodle_driver = {
	.driver = {
	.name = "poodle-audio",
	.owner = THIS_MODULE,
	},
	.probe = poodle_probe,
	.remove = poodle_remove,
	};

	module_platform_driver(poodle_driver);

	/* Module information */
	MODULE_AUTHOR("Richard Purdie");
	MODULE_DESCRIPTION("ALSA SoC Poodle");
	MODULE_LICENSE("GPL");
	MODULE_ALIAS("platform:poodle-audio");