sound/soc/pxa/mioa701_wm9713.c - kernel/prism - Git at Google

 /*
  * Handles the Mitac mioa701 SoC system
  *
  * Copyright (C) 2008 Robert Jarzmik
  *
  * 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 in version 2 of the License.
  *
  * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  * This is a little schema of the sound interconnections :
  *
  *    Sagem X200                 Wolfson WM9713
  *    +--------+             +-------------------+      Rear Speaker
  *    |        |             |                   |           /-+
  *    |        +--->----->---+MONOIN         SPKL+--->----+-+  |
  *    |  GSM   |             |                   |        | |  |
  *    |        +--->----->---+PCBEEP         SPKR+--->----+-+  |
  *    |  CHIP  |             |                   |           \-+
  *    |        +---<-----<---+MONO               |
  *    |        |             |                   |      Front Speaker
  *    +--------+             |                   |           /-+
  *                           |                HPL+--->----+-+  |
  *                           |                   |        | |  |
  *                           |               OUT3+--->----+-+  |
  *                           |                   |           \-+
  *                           |                   |
  *                           |                   |     Front Micro
  *                           |                   |         +
  *                           |               MIC1+-----<--+o+
  *                           |                   |         +
  *                           +-------------------+        ---
  */

 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/platform_device.h>

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

 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>
 #include <sound/initval.h>
 #include <sound/ac97_codec.h>

 #include "pxa2xx-pcm.h"
 #include "pxa2xx-ac97.h"
 #include "../codecs/wm9713.h"

 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)

 #define AC97_GPIO_PULL		0x58

 /* Use GPIO8 for rear speaker amplifier */
 static int rear_amp_power(struct snd_soc_codec *codec, int power)
 {
 	unsigned short reg;

 	if (power) {
 		reg = snd_soc_read(codec, AC97_GPIO_CFG);
 		snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100);
 		reg = snd_soc_read(codec, AC97_GPIO_PULL);
 		snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15));
 	} else {
 		reg = snd_soc_read(codec, AC97_GPIO_CFG);
 		snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100);
 		reg = snd_soc_read(codec, AC97_GPIO_PULL);
 		snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15));
 	}

 	return 0;
 }

 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
 			  struct snd_kcontrol *kctl, int event)
 {
 	struct snd_soc_codec *codec = widget->codec;

 	return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
 }

 /* mioa701 machine dapm widgets */
 static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
 	SND_SOC_DAPM_SPK("Front Speaker", NULL),
 	SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
 	SND_SOC_DAPM_MIC("Headset", NULL),
 	SND_SOC_DAPM_LINE("GSM Line Out", NULL),
 	SND_SOC_DAPM_LINE("GSM Line In", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_MIC("Front Mic", NULL),
 };

 static const struct snd_soc_dapm_route audio_map[] = {
 	/* Call Mic */
 	{"Mic Bias", NULL, "Front Mic"},
 	{"MIC1", NULL, "Mic Bias"},

 	/* Headset Mic */
 	{"LINEL", NULL, "Headset Mic"},
 	{"LINER", NULL, "Headset Mic"},

 	/* GSM Module */
 	{"MONOIN", NULL, "GSM Line Out"},
 	{"PCBEEP", NULL, "GSM Line Out"},
 	{"GSM Line In", NULL, "MONO"},

 	/* headphone connected to HPL, HPR */
 	{"Headset", NULL, "HPL"},
 	{"Headset", NULL, "HPR"},

 	/* front speaker connected to HPL, OUT3 */
 	{"Front Speaker", NULL, "HPL"},
 	{"Front Speaker", NULL, "OUT3"},

 	/* rear speaker connected to SPKL, SPKR */
 	{"Rear Speaker", NULL, "SPKL"},
 	{"Rear Speaker", NULL, "SPKR"},
 };

 static int mioa701_wm9713_init(struct snd_soc_codec *codec)
 {
 	unsigned short reg;

 	/* Add mioa701 specific widgets */
 	snd_soc_dapm_new_controls(codec, ARRAY_AND_SIZE(mioa701_dapm_widgets));

 	/* Set up mioa701 specific audio path audio_mapnects */
 	snd_soc_dapm_add_routes(codec, ARRAY_AND_SIZE(audio_map));

 	/* Prepare GPIO8 for rear speaker amplifier */
 	reg = codec->read(codec, AC97_GPIO_CFG);
 	codec->write(codec, AC97_GPIO_CFG, reg | 0x0100);

 	/* Prepare MIC input */
 	reg = codec->read(codec, AC97_3D_CONTROL);
 	codec->write(codec, AC97_3D_CONTROL, reg | 0xc000);

 	snd_soc_dapm_enable_pin(codec, "Front Speaker");
 	snd_soc_dapm_enable_pin(codec, "Rear Speaker");
 	snd_soc_dapm_enable_pin(codec, "Front Mic");
 	snd_soc_dapm_enable_pin(codec, "GSM Line In");
 	snd_soc_dapm_enable_pin(codec, "GSM Line Out");
 	snd_soc_dapm_sync(codec);

 	return 0;
 }

 static struct snd_soc_ops mioa701_ops;

 static struct snd_soc_dai_link mioa701_dai[] = {
 	{
 		.name = "AC97",
 		.stream_name = "AC97 HiFi",
 		.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
 		.codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI],
 		.init = mioa701_wm9713_init,
 		.ops = &mioa701_ops,
 	},
 	{
 		.name = "AC97 Aux",
 		.stream_name = "AC97 Aux",
 		.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
 		.codec_dai = &wm9713_dai[WM9713_DAI_AC97_AUX],
 		.ops = &mioa701_ops,
 	},
 };

 static struct snd_soc_card mioa701 = {
 	.name = "MioA701",
 	.platform = &pxa2xx_soc_platform,
 	.dai_link = mioa701_dai,
 	.num_links = ARRAY_SIZE(mioa701_dai),
 };

 static struct snd_soc_device mioa701_snd_devdata = {
 	.card = &mioa701,
 	.codec_dev = &soc_codec_dev_wm9713,
 };

 static struct platform_device *mioa701_snd_device;

 static int mioa701_wm9713_probe(struct platform_device *pdev)
 {
 	int ret;

 	if (!machine_is_mioa701())
 		return -ENODEV;

 	dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will"
 		 "lead to overheating and possible destruction of your device."
 		 "Do not use without a good knowledge of mio's board design!\n");

 	mioa701_snd_device = platform_device_alloc("soc-audio", -1);
 	if (!mioa701_snd_device)
 		return -ENOMEM;

 	platform_set_drvdata(mioa701_snd_device, &mioa701_snd_devdata);
 	mioa701_snd_devdata.dev = &mioa701_snd_device->dev;

 	ret = platform_device_add(mioa701_snd_device);
 	if (!ret)
 		return 0;

 	platform_device_put(mioa701_snd_device);
 	return ret;
 }

 static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
 {
 	platform_device_unregister(mioa701_snd_device);
 	return 0;
 }

 static struct platform_driver mioa701_wm9713_driver = {
 	.probe		= mioa701_wm9713_probe,
 	.remove		= __devexit_p(mioa701_wm9713_remove),
 	.driver		= {
 		.name		= "mioa701-wm9713",
 		.owner		= THIS_MODULE,
 	},
 };

 static int __init mioa701_asoc_init(void)
 {
 	return platform_driver_register(&mioa701_wm9713_driver);
 }

 static void __exit mioa701_asoc_exit(void)
 {
 	platform_driver_unregister(&mioa701_wm9713_driver);
 }

 module_init(mioa701_asoc_init);
 module_exit(mioa701_asoc_exit);

 /* Module information */
 MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
 MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
 MODULE_LICENSE("GPL");
	/*
	* Handles the Mitac mioa701 SoC system
	*
	* Copyright (C) 2008 Robert Jarzmik
	*
	* 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 in version 2 of the License.
	*
	* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	* This is a little schema of the sound interconnections :
	*
	* Sagem X200 Wolfson WM9713
	* +--------+ +-------------------+ Rear Speaker
	* \| \| \| \| /-+
	* \| +--->----->---+MONOIN SPKL+--->----+-+ \|
	* \| GSM \| \| \| \| \| \|
	* \| +--->----->---+PCBEEP SPKR+--->----+-+ \|
	* \| CHIP \| \| \| \-+
	* \| +---<-----<---+MONO \|
	* \| \| \| \| Front Speaker
	* +--------+ \| \| /-+
	* \| HPL+--->----+-+ \|
	* \| \| \| \| \|
	* \| OUT3+--->----+-+ \|
	* \| \| \-+
	* \| \|
	* \| \| Front Micro
	* \| \| +
	* \| MIC1+-----<--+o+
	* \| \| +
	* +-------------------+ ---
	*/

	#include <linux/module.h>
	#include <linux/moduleparam.h>
	#include <linux/platform_device.h>

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

	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/soc.h>
	#include <sound/soc-dapm.h>
	#include <sound/initval.h>
	#include <sound/ac97_codec.h>

	#include "pxa2xx-pcm.h"
	#include "pxa2xx-ac97.h"
	#include "../codecs/wm9713.h"

	#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)

	#define AC97_GPIO_PULL 0x58

	/* Use GPIO8 for rear speaker amplifier */
	static int rear_amp_power(struct snd_soc_codec *codec, int power)
	{
	unsigned short reg;

	if (power) {
	reg = snd_soc_read(codec, AC97_GPIO_CFG);
	snd_soc_write(codec, AC97_GPIO_CFG, reg \| 0x0100);
	reg = snd_soc_read(codec, AC97_GPIO_PULL);
	snd_soc_write(codec, AC97_GPIO_PULL, reg \| (1<<15));
	} else {
	reg = snd_soc_read(codec, AC97_GPIO_CFG);
	snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100);
	reg = snd_soc_read(codec, AC97_GPIO_PULL);
	snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15));
	}

	return 0;
	}

	static int rear_amp_event(struct snd_soc_dapm_widget *widget,
	struct snd_kcontrol *kctl, int event)
	{
	struct snd_soc_codec *codec = widget->codec;

	return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
	}

	/* mioa701 machine dapm widgets */
	static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Front Speaker", NULL),
	SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
	SND_SOC_DAPM_MIC("Headset", NULL),
	SND_SOC_DAPM_LINE("GSM Line Out", NULL),
	SND_SOC_DAPM_LINE("GSM Line In", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Front Mic", NULL),
	};

	static const struct snd_soc_dapm_route audio_map[] = {
	/* Call Mic */
	{"Mic Bias", NULL, "Front Mic"},
	{"MIC1", NULL, "Mic Bias"},

	/* Headset Mic */
	{"LINEL", NULL, "Headset Mic"},
	{"LINER", NULL, "Headset Mic"},

	/* GSM Module */
	{"MONOIN", NULL, "GSM Line Out"},
	{"PCBEEP", NULL, "GSM Line Out"},
	{"GSM Line In", NULL, "MONO"},

	/* headphone connected to HPL, HPR */
	{"Headset", NULL, "HPL"},
	{"Headset", NULL, "HPR"},

	/* front speaker connected to HPL, OUT3 */
	{"Front Speaker", NULL, "HPL"},
	{"Front Speaker", NULL, "OUT3"},

	/* rear speaker connected to SPKL, SPKR */
	{"Rear Speaker", NULL, "SPKL"},
	{"Rear Speaker", NULL, "SPKR"},
	};

	static int mioa701_wm9713_init(struct snd_soc_codec *codec)
	{
	unsigned short reg;

	/* Add mioa701 specific widgets */
	snd_soc_dapm_new_controls(codec, ARRAY_AND_SIZE(mioa701_dapm_widgets));

	/* Set up mioa701 specific audio path audio_mapnects */
	snd_soc_dapm_add_routes(codec, ARRAY_AND_SIZE(audio_map));

	/* Prepare GPIO8 for rear speaker amplifier */
	reg = codec->read(codec, AC97_GPIO_CFG);
	codec->write(codec, AC97_GPIO_CFG, reg \| 0x0100);

	/* Prepare MIC input */
	reg = codec->read(codec, AC97_3D_CONTROL);
	codec->write(codec, AC97_3D_CONTROL, reg \| 0xc000);

	snd_soc_dapm_enable_pin(codec, "Front Speaker");
	snd_soc_dapm_enable_pin(codec, "Rear Speaker");
	snd_soc_dapm_enable_pin(codec, "Front Mic");
	snd_soc_dapm_enable_pin(codec, "GSM Line In");
	snd_soc_dapm_enable_pin(codec, "GSM Line Out");
	snd_soc_dapm_sync(codec);

	return 0;
	}

	static struct snd_soc_ops mioa701_ops;

	static struct snd_soc_dai_link mioa701_dai[] = {
	{
	.name = "AC97",
	.stream_name = "AC97 HiFi",
	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
	.codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI],
	.init = mioa701_wm9713_init,
	.ops = &mioa701_ops,
	},
	{
	.name = "AC97 Aux",
	.stream_name = "AC97 Aux",
	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
	.codec_dai = &wm9713_dai[WM9713_DAI_AC97_AUX],
	.ops = &mioa701_ops,
	},
	};

	static struct snd_soc_card mioa701 = {
	.name = "MioA701",
	.platform = &pxa2xx_soc_platform,
	.dai_link = mioa701_dai,
	.num_links = ARRAY_SIZE(mioa701_dai),
	};

	static struct snd_soc_device mioa701_snd_devdata = {
	.card = &mioa701,
	.codec_dev = &soc_codec_dev_wm9713,
	};

	static struct platform_device *mioa701_snd_device;

	static int mioa701_wm9713_probe(struct platform_device *pdev)
	{
	int ret;

	if (!machine_is_mioa701())
	return -ENODEV;

	dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will"
	"lead to overheating and possible destruction of your device."
	"Do not use without a good knowledge of mio's board design!\n");

	mioa701_snd_device = platform_device_alloc("soc-audio", -1);
	if (!mioa701_snd_device)
	return -ENOMEM;

	platform_set_drvdata(mioa701_snd_device, &mioa701_snd_devdata);
	mioa701_snd_devdata.dev = &mioa701_snd_device->dev;

	ret = platform_device_add(mioa701_snd_device);
	if (!ret)
	return 0;

	platform_device_put(mioa701_snd_device);
	return ret;
	}

	static int __devexit mioa701_wm9713_remove(struct platform_device *pdev)
	{
	platform_device_unregister(mioa701_snd_device);
	return 0;
	}

	static struct platform_driver mioa701_wm9713_driver = {
	.probe = mioa701_wm9713_probe,
	.remove = __devexit_p(mioa701_wm9713_remove),
	.driver = {
	.name = "mioa701-wm9713",
	.owner = THIS_MODULE,
	},
	};

	static int __init mioa701_asoc_init(void)
	{
	return platform_driver_register(&mioa701_wm9713_driver);
	}

	static void __exit mioa701_asoc_exit(void)
	{
	platform_driver_unregister(&mioa701_wm9713_driver);
	}

	module_init(mioa701_asoc_init);
	module_exit(mioa701_asoc_exit);

	/* Module information */
	MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
	MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
	MODULE_LICENSE("GPL");