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authorLopez Cruz, Misael <x0052729@ti.com>2009-03-05 11:32:31 -0600
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-03-06 13:37:17 +0000
commitde0b988828a45f4fefc96ff2fbed3ba2184319b9 (patch)
tree74189b2fa8dedda64397b65e6d900eef526c8913 /sound/soc/omap/sdp3430.c
parenta454dad19e78388d9f140ad0dfa6a849c57d385d (diff)
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>
Diffstat (limited to 'sound/soc/omap/sdp3430.c')
-rw-r--r--sound/soc/omap/sdp3430.c43
1 files changed, 41 insertions, 2 deletions
diff --git a/sound/soc/omap/sdp3430.c b/sound/soc/omap/sdp3430.c
index 4eab4b491dee..715c648203a4 100644
--- a/sound/soc/omap/sdp3430.c
+++ b/sound/soc/omap/sdp3430.c
@@ -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);