[PATCH] ASoC: Add jack_status_check callback function

[PATCH] ASoC: Add jack_status_check callback function

[Joonyoung Shim]

The jack_status_check callback function is the interface to check the
status of the jack. Some target provides the method to distinguish what
is the jack inserted - headphone jack, microphone jack, tvout jack, etc,
so we can implement it using the jack_status_check function.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
---
 include/sound/soc.h  |    2 ++
 sound/soc/soc-jack.c |    3 +++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9323dcb..f66773b 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -333,6 +333,8 @@ struct snd_soc_jack_gpio {
 	int debounce_time;
 	struct snd_soc_jack *jack;
 	struct work_struct work;
+
+	int (*jack_status_check)(void);
 };
 #endif
 
diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 1212414..3c07a94 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -163,6 +163,9 @@ static void snd_soc_jack_gpio_detect(struct snd_soc_jack_gpio *gpio)
 	else
 		report = 0;
 
+	if (gpio->jack_status_check)
+		report = gpio->jack_status_check();
+
 	snd_soc_jack_report(jack, report, gpio->report);
 }
 
-- 
1.6.0.4

Re: [PATCH] ASoC: Add jack_status_check callback function

[Mark Brown]

On Thu, Nov 12, 2009 at 05:14:04PM +0900, Joonyoung Shim wrote:
> The jack_status_check callback function is the interface to check the
> status of the jack. Some target provides the method to distinguish what
> is the jack inserted - headphone jack, microphone jack, tvout jack, etc,
> so we can implement it using the jack_status_check function.

Applied, thanks.  

Obviously with some jack detection methods you'd just be using multiple
GPIOs but that's not going to work for everything.  If someone needs
platform data of some kind passing into the jack that could be added
later.