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ASoC: omap: rx51: Add stereo output support to audio jack
Audio jack in Nokia RX-51/N900 is driven by TPA6130 headphone amplifier. This patch adds support for it and stereo output can be active when "Jack Function" == "TV-OUT" || "Headphone". As the TPA6130 can output very high volume levels the output is limited with snd_soc_limit_volume. Limiting value is found from Maemo kernel sources. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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64ed983650
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48529b3b7c
2 changed files with 40 additions and 4 deletions
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@ -24,6 +24,7 @@ config SND_OMAP_SOC_RX51
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select OMAP_MCBSP
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select SND_OMAP_SOC_MCBSP
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select SND_SOC_TLV320AIC3X
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select SND_SOC_TPA6130A2
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help
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Say Y if you want to add support for SoC audio on Nokia RX-51
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hardware. This is also known as Nokia N900 product.
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@ -31,6 +31,7 @@
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <plat/mcbsp.h>
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#include "../codecs/tpa6130a2.h"
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#include <asm/mach-types.h>
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@ -47,7 +48,8 @@
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enum {
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RX51_JACK_DISABLED,
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RX51_JACK_TVOUT, /* tv-out */
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RX51_JACK_TVOUT, /* tv-out with stereo output */
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RX51_JACK_HP, /* headphone: stereo output, no mic */
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};
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static int rx51_spk_func;
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@ -57,6 +59,15 @@ static int rx51_jack_func;
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static void rx51_ext_control(struct snd_soc_codec *codec)
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{
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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int hp = 0, tvout = 0;
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switch (rx51_jack_func) {
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case RX51_JACK_TVOUT:
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tvout = 1;
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case RX51_JACK_HP:
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hp = 1;
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break;
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}
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if (rx51_spk_func)
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snd_soc_dapm_enable_pin(dapm, "Ext Spk");
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@ -66,9 +77,12 @@ static void rx51_ext_control(struct snd_soc_codec *codec)
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snd_soc_dapm_enable_pin(dapm, "DMic");
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else
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snd_soc_dapm_disable_pin(dapm, "DMic");
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if (hp)
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snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
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else
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snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
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gpio_set_value(RX51_TVOUT_SEL_GPIO,
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rx51_jack_func == RX51_JACK_TVOUT);
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gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
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snd_soc_dapm_sync(dapm);
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}
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@ -153,6 +167,19 @@ static int rx51_spk_event(struct snd_soc_dapm_widget *w,
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return 0;
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}
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static int rx51_hp_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *k, int event)
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{
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struct snd_soc_codec *codec = w->dapm->codec;
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if (SND_SOC_DAPM_EVENT_ON(event))
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tpa6130a2_stereo_enable(codec, 1);
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else
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tpa6130a2_stereo_enable(codec, 0);
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return 0;
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}
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static int rx51_get_input(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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@ -212,11 +239,14 @@ static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
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static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
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SND_SOC_DAPM_MIC("DMic", NULL),
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SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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{"Ext Spk", NULL, "HPLOUT"},
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{"Ext Spk", NULL, "HPROUT"},
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{"Headphone Jack", NULL, "LLOUT"},
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{"Headphone Jack", NULL, "RLOUT"},
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{"DMic Rate 64", NULL, "Mic Bias 2V"},
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{"Mic Bias 2V", NULL, "DMic"},
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@ -224,7 +254,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
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static const char *spk_function[] = {"Off", "On"};
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static const char *input_function[] = {"ADC", "Digital Mic"};
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static const char *jack_function[] = {"Off", "TV-OUT"};
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static const char *jack_function[] = {"Off", "TV-OUT", "Headphone"};
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static const struct soc_enum rx51_enum[] = {
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
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@ -265,6 +295,11 @@ static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
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/* Set up RX-51 specific audio path audio_map */
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snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
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err = tpa6130a2_add_controls(codec);
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if (err < 0)
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return err;
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snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
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snd_soc_dapm_sync(dapm);
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/* AV jack detection */
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