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ASoC: Add initial support of Mitac mioa701 device SoC. 

This machine driver enables sound functions on Mitac mio
a701 smartphone. Build upon ASoC v1, it handles :
 - rear speaker
 - front speaker
 - microphone
 - GSM

A global "Mio Mode" switch is not yet provided to cope with
audio path setup. As balance on audio chip line is no more
assured, an incorrect setup can produce a lot of heat and
even fry the battery behind the wm9713 and the speaker
amplifier.

It doesn't cope with :
 - headset jack
 - mio master mode
 - master volume control

This driver is backported from ASoc v2, and amputated from
scenario setups and master volume control.

[Minor mods for terminology in comments -- broonie]

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Robert Jarzmik 2009-02-07 14:01:58 +01:00 committed by Mark Brown
parent e255265b47
commit 8f0dc655f9
3 changed files with 261 additions and 0 deletions
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9
sound/soc/pxa/Kconfig
View File

@ -115,3 +115,12 @@ config SND_SOC_ZYLONITE
help
Say Y if you want to add support for SoC audio on the
Marvell Zylonite reference platform.
config SND_PXA2XX_SOC_MIOA701
tristate "SoC Audio support for MIO A701"
depends on SND_PXA2XX_SOC && MACH_MIOA701
select SND_PXA2XX_SOC_AC97
select SND_SOC_WM9713
help
Say Y if you want to add support for SoC audio on the
MIO A701.

2
sound/soc/pxa/Makefile
View File

@ -20,6 +20,7 @@ snd-soc-spitz-objs := spitz.o
snd-soc-em-x270-objs := em-x270.o
snd-soc-palm27x-objs := palm27x.o
snd-soc-zylonite-objs := zylonite.o
snd-soc-mioa701-objs := mioa701_wm9713.o
obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o
obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o
@ -30,4 +31,5 @@ obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o
obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o
obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o
obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o
obj-$(CONFIG_SND_SOC_ZYLONITE) += snd-soc-zylonite.o

250
sound/soc/pxa/mioa701_wm9713.c Normal file
View File

@ -0,0 +1,250 @@
/*
* 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");