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ASoC: Add headset jack detection for SDP3430 machine driver 

Add headset jack detection for SDP3430 boards using SoC jack
reporting interface. Headset detection on SDP3430 board is
achieved through TWL4030 GPIO_2 pin.

Signed-off-by: Misael Lopez Cruz <x0052729@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lopez Cruz, Misael 2009-03-05 11:32:31 -06:00 committed by Mark Brown
parent a454dad19e
commit de0b988828
1 changed files with 41 additions and 2 deletions
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43
sound/soc/omap/sdp3430.c
View File

@ -28,6 +28,7 @@
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
@ -122,7 +123,7 @@ static int sdp3430_twl4030_init(struct snd_soc_codec *codec)
/* SDP3430 connected pins */
snd_soc_dapm_enable_pin(codec, "Ext Mic");
snd_soc_dapm_enable_pin(codec, "Ext Spk");
snd_soc_dapm_enable_pin(codec, "Headset Jack");
snd_soc_dapm_disable_pin(codec, "Headset Jack");
/* TWL4030 not connected pins */
snd_soc_dapm_nc_pin(codec, "AUXL");
@ -144,6 +145,27 @@ static int sdp3430_twl4030_init(struct snd_soc_codec *codec)
return ret;
}
/* Headset jack */
static struct snd_soc_jack hs_jack;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin hs_jack_pins[] = {
{
.pin = "Headset Jack",
.mask = SND_JACK_HEADSET,
},
};
/* Headset jack detection gpios */
static struct snd_soc_jack_gpio hs_jack_gpios[] = {
{
.gpio = (OMAP_MAX_GPIO_LINES + 2),
.name = "hsdet-gpio",
.report = SND_JACK_HEADSET,
.debounce_time = 200,
},
};
/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link sdp3430_dai = {
.name = "TWL4030",
@ -194,7 +216,21 @@ static int __init sdp3430_soc_init(void)
if (ret)
goto err1;
return 0;
/* Headset jack detection */
ret = snd_soc_jack_new(&snd_soc_sdp3430, "SDP3430 headset jack",
SND_JACK_HEADSET, &hs_jack);
if (ret)
return ret;
ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
hs_jack_pins);
if (ret)
return ret;
ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
hs_jack_gpios);
return ret;
err1:
printk(KERN_ERR "Unable to add platform device\n");
@ -206,6 +242,9 @@ module_init(sdp3430_soc_init);
static void __exit sdp3430_soc_exit(void)
{
snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
hs_jack_gpios);
platform_device_unregister(sdp3430_snd_device);
}
module_exit(sdp3430_soc_exit);