sanders: power: add back support for dt2wake

Change-Id: I429f8f86f3ff3e30ec1af104475e4cc1d0020fb7

Signed-off-by: ronaxdevil <pratabidya.007@gmail.com>

power/Android.mk

@@ -18,6 +18,10 @@ ifeq ($(TARGET_USES_INTERACTION_BOOST),true)
     LOCAL_CFLAGS += -DINTERACTION_BOOST
 endif
 
+ifneq ($(TARGET_TAP_TO_WAKE_NODE),)
+    LOCAL_CFLAGS += -DTAP_TO_WAKE_NODE=\"$(TARGET_TAP_TO_WAKE_NODE)\"
+endif
+
 LOCAL_MODULE := android.hardware.power@1.2-service
 LOCAL_INIT_RC := android.hardware.power@1.2-service.rc
 LOCAL_MODULE_TAGS := optional

power/Power.cpp

@@ -65,6 +65,7 @@ Return<void> Power::powerHint(PowerHint_1_0 hint, int32_t data) {
 }
 
 Return<void> Power::setFeature(Feature feature, bool activate)  {
+    set_feature(static_cast<feature_t>(feature), activate ? 1 : 0);
     return Void();
 }
 

power/power-common.c

@@ -133,3 +133,17 @@ void set_interactive(int on)
 
     ALOGI("Got set_interactive hint");
 }
+
+void set_feature(feature_t feature, int state)
+{
+    switch (feature) {
+#ifdef TAP_TO_WAKE_NODE
+        case POWER_FEATURE_DOUBLE_TAP_TO_WAKE:
+            sysfs_write(TAP_TO_WAKE_NODE, state ? "1" : "0");
+            break;
+#endif
+        default:
+            break;
+    }
+}
+

power/power-common.h

@@ -61,6 +61,7 @@ enum CPU_GOV_CHECK {
 void power_init(void);
 void power_hint(power_hint_t hint, void *data);
 void set_interactive(int on);
+void set_feature(feature_t feature, int state);
 
 #ifdef __cplusplus
 }