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ASoC: RX-51: Add Jack Function kcontrol

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Nokia RX-51/N900 has multifunction 4-pole audio-video jack that can be used
as headphone, headset or audio-video connector. This patch implements the
control 'Jack Function' which is used to select the desired function.
At the moment only TV-out without audio is supported.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Jarkko Nikula 2010-06-21 14:14:59 +03:00 committed by Liam Girdwood
parent 3d5a451623
commit 4eb5470326
1 changed files with 44 additions and 0 deletions
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44
sound/soc/omap/rx51.c
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@ -37,14 +37,21 @@
#include "omap-pcm.h"
#include "../codecs/tlv320aic3x.h"
#define RX51_TVOUT_SEL_GPIO 40
/*
* REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
* gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
*/
#define RX51_SPEAKER_AMP_TWL_GPIO (192 + 7)
enum {
RX51_JACK_DISABLED,
RX51_JACK_TVOUT, /* tv-out */
};
static int rx51_spk_func;
static int rx51_dmic_func;
static int rx51_jack_func;
static void rx51_ext_control(struct snd_soc_codec *codec)
{
@ -57,6 +64,9 @@ static void rx51_ext_control(struct snd_soc_codec *codec)
else
snd_soc_dapm_disable_pin(codec, "DMic");
gpio_set_value(RX51_TVOUT_SEL_GPIO,
rx51_jack_func == RX51_JACK_TVOUT);
snd_soc_dapm_sync(codec);
}
@ -162,6 +172,28 @@ static int rx51_set_input(struct snd_kcontrol *kcontrol,
return 1;
}
static int rx51_get_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.integer.value[0] = rx51_jack_func;
return 0;
}
static int rx51_set_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
if (rx51_jack_func == ucontrol->value.integer.value[0])
return 0;
rx51_jack_func = ucontrol->value.integer.value[0];
rx51_ext_control(codec);
return 1;
}
static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
SND_SOC_DAPM_MIC("DMic", NULL),
@ -177,10 +209,12 @@ static const struct snd_soc_dapm_route audio_map[] = {
static const char *spk_function[] = {"Off", "On"};
static const char *input_function[] = {"ADC", "Digital Mic"};
static const char *jack_function[] = {"Off", "TV-OUT"};
static const struct soc_enum rx51_enum[] = {
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
};
static const struct snd_kcontrol_new aic34_rx51_controls[] = {
@ -188,6 +222,8 @@ static const struct snd_kcontrol_new aic34_rx51_controls[] = {
rx51_get_spk, rx51_set_spk),
SOC_ENUM_EXT("Input Select", rx51_enum[1],
rx51_get_input, rx51_set_input),
SOC_ENUM_EXT("Jack Function", rx51_enum[2],
rx51_get_jack, rx51_set_jack),
};
static int rx51_aic34_init(struct snd_soc_codec *codec)
@ -259,6 +295,11 @@ static int __init rx51_soc_init(void)
if (!machine_is_nokia_rx51())
return -ENODEV;
err = gpio_request(RX51_TVOUT_SEL_GPIO, "tvout_sel");
if (err)
goto err_gpio_tvout_sel;
gpio_direction_output(RX51_TVOUT_SEL_GPIO, 0);
rx51_snd_device = platform_device_alloc("soc-audio", -1);
if (!rx51_snd_device) {
err = -ENOMEM;
@ -277,6 +318,8 @@ static int __init rx51_soc_init(void)
err2:
platform_device_put(rx51_snd_device);
err1:
gpio_free(RX51_TVOUT_SEL_GPIO);
err_gpio_tvout_sel:
return err;
}
@ -284,6 +327,7 @@ err1:
static void __exit rx51_soc_exit(void)
{
platform_device_unregister(rx51_snd_device);
gpio_free(RX51_TVOUT_SEL_GPIO);
}
module_init(rx51_soc_init);