ALSA: add headphone over current switches
Some CODECs monitor current drawn by headphone power amplifer.
If current consumed goes over pre-defined threshold, CODEC would
communicate to host processor. Then, CODEC driver would propagate
the event so user-space application can react accordingly.
Add support to propagate over current events for both
left headphone and right headphone through ALSA jack framework.
Change-Id: Ieef36f070a4478a5a80ec4c8b0cc81464abd75ad
Signed-off-by: Patrick Lai <plai@codeaurora.org>
diff --git a/include/sound/jack.h b/include/sound/jack.h
index c140fc7..5fedf19 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -42,7 +42,8 @@
SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
SND_JACK_VIDEOOUT = 0x0010,
SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
-
+ SND_JACK_OC_HPHL = 0x0020,
+ SND_JACK_OC_HPHR = 0x0040,
/* Kept separate from switches to facilitate implementation */
SND_JACK_BTN_0 = 0x4000,
SND_JACK_BTN_1 = 0x2000,