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ASoC: add iPAQ hx4700 machine driver

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AK4641 connected via I2S and I2C, jack detection via GPIO.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Dmitry Artamonow 2011-05-18 19:25:10 +04:00 committed by Mark Brown
parent 00d2701070
commit c26f642e26
3 changed files with 266 additions and 0 deletions
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9
sound/soc/pxa/Kconfig
View File

@ -155,6 +155,15 @@ config SND_SOC_RAUMFELD
help
Say Y if you want to add support for SoC audio on Raumfeld devices
config SND_PXA2XX_SOC_HX4700
tristate "SoC Audio support for HP iPAQ hx4700"
depends on SND_PXA2XX_SOC && MACH_H4700
select SND_PXA2XX_SOC_I2S
select SND_SOC_AK4641
help
Say Y if you want to add support for SoC audio on the
HP iPAQ hx4700.
config SND_PXA2XX_SOC_MAGICIAN
tristate "SoC Audio support for HTC Magician"
depends on SND_PXA2XX_SOC && MACH_MAGICIAN

2
sound/soc/pxa/Makefile
View File

@ -22,6 +22,7 @@ snd-soc-palm27x-objs := palm27x.o
snd-soc-saarb-objs := saarb.o
snd-soc-tavorevb3-objs := tavorevb3.o
snd-soc-zylonite-objs := zylonite.o
snd-soc-hx4700-objs := hx4700.o
snd-soc-magician-objs := magician.o
snd-soc-mioa701-objs := mioa701_wm9713.o
snd-soc-z2-objs := z2.o
@ -37,6 +38,7 @@ 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-$(CONFIG_SND_PXA2XX_SOC_HX4700) += snd-soc-hx4700.o
obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o
obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o
obj-$(CONFIG_SND_PXA2XX_SOC_Z2) += snd-soc-z2.o

255
sound/soc/pxa/hx4700.c Normal file
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@ -0,0 +1,255 @@
/*
* SoC audio for HP iPAQ hx4700
*
* Copyright (c) 2009 Philipp Zabel
*
* 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/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <mach/hx4700.h>
#include <asm/mach-types.h>
#include "pxa2xx-i2s.h"
#include "../codecs/ak4641.h"
static struct snd_soc_jack hs_jack;
/* Headphones jack detection DAPM pin */
static struct snd_soc_jack_pin hs_jack_pin[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Speaker",
/* disable speaker when hp jack is inserted */
.mask = SND_JACK_HEADPHONE,
.invert = 1,
},
};
/* Headphones jack detection GPIO */
static struct snd_soc_jack_gpio hs_jack_gpio = {
.gpio = GPIO75_HX4700_EARPHONE_nDET,
.invert = true,
.name = "hp-gpio",
.report = SND_JACK_HEADPHONE,
.debounce_time = 200,
};
/*
* iPAQ hx4700 uses I2S for capture and playback.
*/
static int hx4700_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 = 0;
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai,
SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS);
if (ret < 0)
return ret;
/* set cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai,
SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS);
if (ret < 0)
return ret;
/* set the I2S system clock as output */
ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
SND_SOC_CLOCK_OUT);
if (ret < 0)
return ret;
/* inform codec driver about clock freq *
* (PXA I2S always uses divider 256) */
ret = snd_soc_dai_set_sysclk(codec_dai, 0, 256 * params_rate(params),
SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
return 0;
}
static struct snd_soc_ops hx4700_ops = {
.hw_params = hx4700_hw_params,
};
static int hx4700_spk_power(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
gpio_set_value(GPIO107_HX4700_SPK_nSD, !!SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
static int hx4700_hp_power(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
gpio_set_value(GPIO92_HX4700_HP_DRIVER, !!SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
/* hx4700 machine dapm widgets */
static const struct snd_soc_dapm_widget hx4700_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", hx4700_hp_power),
SND_SOC_DAPM_SPK("Speaker", hx4700_spk_power),
SND_SOC_DAPM_MIC("Built-in Microphone", NULL),
};
/* hx4700 machine audio_map */
static const struct snd_soc_dapm_route hx4700_audio_map[] = {
/* Headphone connected to LOUT, ROUT */
{"Headphone Jack", NULL, "LOUT"},
{"Headphone Jack", NULL, "ROUT"},
/* Speaker connected to MOUT2 */
{"Speaker", NULL, "MOUT2"},
/* Microphone connected to MICIN */
{"MICIN", NULL, "Built-in Microphone"},
{"AIN", NULL, "MICOUT"},
};
/*
* Logic for a ak4641 as connected on a HP iPAQ hx4700
*/
static int hx4700_ak4641_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
int err;
/* NC codec pins */
/* FIXME: is anything connected here? */
snd_soc_dapm_nc_pin(dapm, "MOUT1");
snd_soc_dapm_nc_pin(dapm, "MICEXT");
snd_soc_dapm_nc_pin(dapm, "AUX");
/* Jack detection API stuff */
err = snd_soc_jack_new(codec, "Headphone Jack",
SND_JACK_HEADPHONE, &hs_jack);
if (err)
return err;
err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pin),
hs_jack_pin);
if (err)
return err;
err = snd_soc_jack_add_gpios(&hs_jack, 1, &hs_jack_gpio);
return err;
}
/* hx4700 digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link hx4700_dai = {
.name = "ak4641",
.stream_name = "AK4641",
.cpu_dai_name = "pxa2xx-i2s",
.codec_dai_name = "ak4641-hifi",
.platform_name = "pxa-pcm-audio",
.codec_name = "ak4641.0-0012",
.init = hx4700_ak4641_init,
.ops = &hx4700_ops,
};
/* hx4700 audio machine driver */
static struct snd_soc_card snd_soc_card_hx4700 = {
.name = "iPAQ hx4700",
.dai_link = &hx4700_dai,
.num_links = 1,
.dapm_widgets = hx4700_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(hx4700_dapm_widgets),
.dapm_routes = hx4700_audio_map,
.num_dapm_routes = ARRAY_SIZE(hx4700_audio_map),
};
static struct gpio hx4700_audio_gpios[] = {
{ GPIO107_HX4700_SPK_nSD, GPIOF_OUT_INIT_HIGH, "SPK_POWER" },
{ GPIO92_HX4700_HP_DRIVER, GPIOF_OUT_INIT_LOW, "EP_POWER" },
};
static int __devinit hx4700_audio_probe(struct platform_device *pdev)
{
int ret;
if (!machine_is_h4700())
return -ENODEV;
ret = gpio_request_array(hx4700_audio_gpios,
ARRAY_SIZE(hx4700_audio_gpios));
if (ret)
return ret;
snd_soc_card_hx4700.dev = &pdev->dev;
ret = snd_soc_register_card(&snd_soc_card_hx4700);
if (ret)
return ret;
return 0;
}
static int __devexit hx4700_audio_remove(struct platform_device *pdev)
{
snd_soc_jack_free_gpios(&hs_jack, 1, &hs_jack_gpio);
snd_soc_unregister_card(&snd_soc_card_hx4700);
gpio_set_value(GPIO92_HX4700_HP_DRIVER, 0);
gpio_set_value(GPIO107_HX4700_SPK_nSD, 0);
gpio_free_array(hx4700_audio_gpios, ARRAY_SIZE(hx4700_audio_gpios));
return 0;
}
static struct platform_driver hx4700_audio_driver = {
.driver = {
.name = "hx4700-audio",
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
},
.probe = hx4700_audio_probe,
.remove = __devexit_p(hx4700_audio_remove),
};
static int __init hx4700_modinit(void)
{
return platform_driver_register(&hx4700_audio_driver);
}
module_init(hx4700_modinit);
static void __exit hx4700_modexit(void)
{
platform_driver_unregister(&hx4700_audio_driver);
}
module_exit(hx4700_modexit);
MODULE_AUTHOR("Philipp Zabel");
MODULE_DESCRIPTION("ALSA SoC iPAQ hx4700");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:hx4700-audio");