ASoC: RX-51: Add Jack Function kcontrol
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>
diff --git a/sound/soc/omap/rx51.c b/sound/soc/omap/rx51.c
index 47d831e..1a2de34 100644
--- a/sound/soc/omap/rx51.c
+++ b/sound/soc/omap/rx51.c
@@ -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 @@
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 @@
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 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 @@
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 @@
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 @@
err2:
platform_device_put(rx51_snd_device);
err1:
+ gpio_free(RX51_TVOUT_SEL_GPIO);
+err_gpio_tvout_sel:
return err;
}
@@ -284,6 +327,7 @@
static void __exit rx51_soc_exit(void)
{
platform_device_unregister(rx51_snd_device);
+ gpio_free(RX51_TVOUT_SEL_GPIO);
}
module_init(rx51_soc_init);