sound/soc/fsl/mx27vis-aic32x4.c - kernel/quantenna - Git at Google

 /*
  * mx27vis-aic32x4.c
  *
  * Copyright 2011 Vista Silicon S.L.
  *
  * Author: Javier Martin <javier.martin@vista-silicon.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.
  *
  * 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 Street, Fifth Floor, Boston,
  * MA 02110-1301, USA.
  */

 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/device.h>
 #include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/platform_data/asoc-mx27vis.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include <sound/tlv.h>
 #include <asm/mach-types.h>

 #include "../codecs/tlv320aic32x4.h"
 #include "imx-ssi.h"
 #include "imx-audmux.h"

 #define MX27VIS_AMP_GAIN	0
 #define MX27VIS_AMP_MUTE	1

 static int mx27vis_amp_gain;
 static int mx27vis_amp_mute;
 static int mx27vis_amp_gain0_gpio;
 static int mx27vis_amp_gain1_gpio;
 static int mx27vis_amp_mutel_gpio;
 static int mx27vis_amp_muter_gpio;

 static int mx27vis_aic32x4_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 ret;

 	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
 				     25000000, SND_SOC_CLOCK_OUT);
 	if (ret) {
 		pr_err("%s: failed setting codec sysclk\n", __func__);
 		return ret;
 	}

 	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
 				SND_SOC_CLOCK_IN);
 	if (ret) {
 		pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
 		return ret;
 	}

 	return 0;
 }

 static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
 	.hw_params	= mx27vis_aic32x4_hw_params,
 };

 static int mx27vis_amp_set(struct snd_kcontrol *kcontrol,
 			    struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	int value = ucontrol->value.integer.value[0];
 	unsigned int reg = mc->reg;
 	int max = mc->max;

 	if (value > max)
 		return -EINVAL;

 	switch (reg) {
 	case MX27VIS_AMP_GAIN:
 		gpio_set_value(mx27vis_amp_gain0_gpio, value & 1);
 		gpio_set_value(mx27vis_amp_gain1_gpio, value >> 1);
 		mx27vis_amp_gain = value;
 		break;
 	case MX27VIS_AMP_MUTE:
 		gpio_set_value(mx27vis_amp_mutel_gpio, value & 1);
 		gpio_set_value(mx27vis_amp_muter_gpio, value >> 1);
 		mx27vis_amp_mute = value;
 		break;
 	}
 	return 0;
 }

 static int mx27vis_amp_get(struct snd_kcontrol *kcontrol,
 			    struct snd_ctl_elem_value *ucontrol)
 {
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
 	unsigned int reg = mc->reg;

 	switch (reg) {
 	case MX27VIS_AMP_GAIN:
 		ucontrol->value.integer.value[0] = mx27vis_amp_gain;
 		break;
 	case MX27VIS_AMP_MUTE:
 		ucontrol->value.integer.value[0] = mx27vis_amp_mute;
 		break;
 	}
 	return 0;
 }

 /* From 6dB to 24dB in steps of 6dB */
 static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0);

 static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = {
 	SOC_DAPM_PIN_SWITCH("External Mic"),
 	SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0,
 		       mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv),
 	SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0,
 		       mx27vis_amp_get, mx27vis_amp_set),
 };

 static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
 	SND_SOC_DAPM_MIC("External Mic", NULL),
 };

 static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
 	{"Mic Bias", NULL, "External Mic"},
 	{"IN1_R", NULL, "Mic Bias"},
 	{"IN2_R", NULL, "Mic Bias"},
 	{"IN3_R", NULL, "Mic Bias"},
 	{"IN1_L", NULL, "Mic Bias"},
 	{"IN2_L", NULL, "Mic Bias"},
 	{"IN3_L", NULL, "Mic Bias"},
 };

 static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
 	.name		= "tlv320aic32x4",
 	.stream_name	= "TLV320AIC32X4",
 	.codec_dai_name	= "tlv320aic32x4-hifi",
 	.platform_name	= "imx-ssi.0",
 	.codec_name	= "tlv320aic32x4.0-0018",
 	.cpu_dai_name	= "imx-ssi.0",
 	.dai_fmt	= SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
 			  SND_SOC_DAIFMT_CBM_CFM,
 	.ops		= &mx27vis_aic32x4_snd_ops,
 };

 static struct snd_soc_card mx27vis_aic32x4 = {
 	.name		= "visstrim_m10-audio",
 	.owner		= THIS_MODULE,
 	.dai_link	= &mx27vis_aic32x4_dai,
 	.num_links	= 1,
 	.controls	= mx27vis_aic32x4_controls,
 	.num_controls	= ARRAY_SIZE(mx27vis_aic32x4_controls),
 	.dapm_widgets	= aic32x4_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
 	.dapm_routes	= aic32x4_dapm_routes,
 	.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
 };

 static int mx27vis_aic32x4_probe(struct platform_device *pdev)
 {
 	struct snd_mx27vis_platform_data *pdata = pdev->dev.platform_data;
 	int ret;

 	if (!pdata) {
 		dev_err(&pdev->dev, "No platform data supplied\n");
 		return -EINVAL;
 	}

 	mx27vis_amp_gain0_gpio = pdata->amp_gain0_gpio;
 	mx27vis_amp_gain1_gpio = pdata->amp_gain1_gpio;
 	mx27vis_amp_mutel_gpio = pdata->amp_mutel_gpio;
 	mx27vis_amp_muter_gpio = pdata->amp_muter_gpio;

 	mx27vis_aic32x4.dev = &pdev->dev;
 	ret = snd_soc_register_card(&mx27vis_aic32x4);
 	if (ret) {
 		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 			ret);
 		return ret;
 	}

 	/* Connect SSI0 as clock slave to SSI1 external pins */
 	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 			IMX_AUDMUX_V1_PCR_SYN |
 			IMX_AUDMUX_V1_PCR_TFSDIR |
 			IMX_AUDMUX_V1_PCR_TCLKDIR |
 			IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
 			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
 	);
 	imx_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
 			IMX_AUDMUX_V1_PCR_SYN |
 			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
 	);

 	return ret;
 }

 static int mx27vis_aic32x4_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_card(&mx27vis_aic32x4);

 	return 0;
 }

 static struct platform_driver mx27vis_aic32x4_audio_driver = {
 	.driver = {
 		.name = "mx27vis",
 	},
 	.probe = mx27vis_aic32x4_probe,
 	.remove = mx27vis_aic32x4_remove,
 };

 module_platform_driver(mx27vis_aic32x4_audio_driver);

 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
 MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:mx27vis");
	/*
	* mx27vis-aic32x4.c
	*
	* Copyright 2011 Vista Silicon S.L.
	*
	* Author: Javier Martin <javier.martin@vista-silicon.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.
	*
	* 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 Street, Fifth Floor, Boston,
	* MA 02110-1301, USA.
	*/

	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/device.h>
	#include <linux/i2c.h>
	#include <linux/gpio.h>
	#include <linux/platform_data/asoc-mx27vis.h>
	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <sound/soc-dapm.h>
	#include <sound/tlv.h>
	#include <asm/mach-types.h>

	#include "../codecs/tlv320aic32x4.h"
	#include "imx-ssi.h"
	#include "imx-audmux.h"

	#define MX27VIS_AMP_GAIN 0
	#define MX27VIS_AMP_MUTE 1

	static int mx27vis_amp_gain;
	static int mx27vis_amp_mute;
	static int mx27vis_amp_gain0_gpio;
	static int mx27vis_amp_gain1_gpio;
	static int mx27vis_amp_mutel_gpio;
	static int mx27vis_amp_muter_gpio;

	static int mx27vis_aic32x4_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 ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
	25000000, SND_SOC_CLOCK_OUT);
	if (ret) {
	pr_err("%s: failed setting codec sysclk\n", __func__);
	return ret;
	}

	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
	SND_SOC_CLOCK_IN);
	if (ret) {
	pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
	return ret;
	}

	return 0;
	}

	static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
	.hw_params = mx27vis_aic32x4_hw_params,
	};

	static int mx27vis_amp_set(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct soc_mixer_control *mc =
	(struct soc_mixer_control *)kcontrol->private_value;
	int value = ucontrol->value.integer.value[0];
	unsigned int reg = mc->reg;
	int max = mc->max;

	if (value > max)
	return -EINVAL;

	switch (reg) {
	case MX27VIS_AMP_GAIN:
	gpio_set_value(mx27vis_amp_gain0_gpio, value & 1);
	gpio_set_value(mx27vis_amp_gain1_gpio, value >> 1);
	mx27vis_amp_gain = value;
	break;
	case MX27VIS_AMP_MUTE:
	gpio_set_value(mx27vis_amp_mutel_gpio, value & 1);
	gpio_set_value(mx27vis_amp_muter_gpio, value >> 1);
	mx27vis_amp_mute = value;
	break;
	}
	return 0;
	}

	static int mx27vis_amp_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct soc_mixer_control *mc =
	(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int reg = mc->reg;

	switch (reg) {
	case MX27VIS_AMP_GAIN:
	ucontrol->value.integer.value[0] = mx27vis_amp_gain;
	break;
	case MX27VIS_AMP_MUTE:
	ucontrol->value.integer.value[0] = mx27vis_amp_mute;
	break;
	}
	return 0;
	}

	/* From 6dB to 24dB in steps of 6dB */
	static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0);

	static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = {
	SOC_DAPM_PIN_SWITCH("External Mic"),
	SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0,
	mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv),
	SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0,
	mx27vis_amp_get, mx27vis_amp_set),
	};

	static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
	SND_SOC_DAPM_MIC("External Mic", NULL),
	};

	static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
	{"Mic Bias", NULL, "External Mic"},
	{"IN1_R", NULL, "Mic Bias"},
	{"IN2_R", NULL, "Mic Bias"},
	{"IN3_R", NULL, "Mic Bias"},
	{"IN1_L", NULL, "Mic Bias"},
	{"IN2_L", NULL, "Mic Bias"},
	{"IN3_L", NULL, "Mic Bias"},
	};

	static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
	.name = "tlv320aic32x4",
	.stream_name = "TLV320AIC32X4",
	.codec_dai_name = "tlv320aic32x4-hifi",
	.platform_name = "imx-ssi.0",
	.codec_name = "tlv320aic32x4.0-0018",
	.cpu_dai_name = "imx-ssi.0",
	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBM_CFM,
	.ops = &mx27vis_aic32x4_snd_ops,
	};

	static struct snd_soc_card mx27vis_aic32x4 = {
	.name = "visstrim_m10-audio",
	.owner = THIS_MODULE,
	.dai_link = &mx27vis_aic32x4_dai,
	.num_links = 1,
	.controls = mx27vis_aic32x4_controls,
	.num_controls = ARRAY_SIZE(mx27vis_aic32x4_controls),
	.dapm_widgets = aic32x4_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
	.dapm_routes = aic32x4_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
	};

	static int mx27vis_aic32x4_probe(struct platform_device *pdev)
	{
	struct snd_mx27vis_platform_data *pdata = pdev->dev.platform_data;
	int ret;

	if (!pdata) {
	dev_err(&pdev->dev, "No platform data supplied\n");
	return -EINVAL;
	}

	mx27vis_amp_gain0_gpio = pdata->amp_gain0_gpio;
	mx27vis_amp_gain1_gpio = pdata->amp_gain1_gpio;
	mx27vis_amp_mutel_gpio = pdata->amp_mutel_gpio;
	mx27vis_amp_muter_gpio = pdata->amp_muter_gpio;

	mx27vis_aic32x4.dev = &pdev->dev;
	ret = snd_soc_register_card(&mx27vis_aic32x4);
	if (ret) {
	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
	ret);
	return ret;
	}

	/* Connect SSI0 as clock slave to SSI1 external pins */
	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
	IMX_AUDMUX_V1_PCR_SYN \|
	IMX_AUDMUX_V1_PCR_TFSDIR \|
	IMX_AUDMUX_V1_PCR_TCLKDIR \|
	IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) \|
	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
	);
	imx_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
	IMX_AUDMUX_V1_PCR_SYN \|
	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
	);

	return ret;
	}

	static int mx27vis_aic32x4_remove(struct platform_device *pdev)
	{
	snd_soc_unregister_card(&mx27vis_aic32x4);

	return 0;
	}

	static struct platform_driver mx27vis_aic32x4_audio_driver = {
	.driver = {
	.name = "mx27vis",
	},
	.probe = mx27vis_aic32x4_probe,
	.remove = mx27vis_aic32x4_remove,
	};

	module_platform_driver(mx27vis_aic32x4_audio_driver);

	MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
	MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
	MODULE_LICENSE("GPL");
	MODULE_ALIAS("platform:mx27vis");