commit e0a09037f41da6fa2da8dbbbf03117765b4ae714
author Steve Kondik <steve@cyngn.com> Mon Oct 19 14:43:39 2015 -0700
committer Michael Bestas <mkbestas@lineageos.org> Wed Oct 23 01:12:56 2019 +0300
tree 06f24e161f17810fc1da52a2c13683e4f2cc3794
parent d1cd53fa2c28f13d929979b2930dedf69b6a9aff

power: Add support for tap-to-wake feature control

Change-Id: I545902b29f4828c127bc32def6e30b67ce4a3aa7

Android.mk

diff --git a/Android.mk b/Android.mk
index 8086fab..a633927 100644
--- a/Android.mk
+++ b/Android.mk
@@ -72,6 +72,10 @@
 LOCAL_SRC_FILES += power-msmnile.c
 endif
 
+ifneq ($(TARGET_TAP_TO_WAKE_NODE),)
+    LOCAL_CFLAGS += -DTAP_TO_WAKE_NODE=\"$(TARGET_TAP_TO_WAKE_NODE)\"
+endif
+
 ifeq ($(TARGET_USES_INTERACTION_BOOST),true)
     LOCAL_CFLAGS += -DINTERACTION_BOOST
 endif

Power.cpp

diff --git a/Power.cpp b/Power.cpp
index 11e0c21..ebdc60a 100644
--- a/Power.cpp
+++ b/Power.cpp
@@ -29,6 +29,7 @@
 
 #define LOG_TAG "QTI PowerHAL"
 
+#include <android-base/file.h>
 #include <log/log.h>
 #include "Power.h"
 #include "power-common.h"
@@ -64,6 +65,15 @@
 }
 
 Return<void> Power::setFeature(Feature feature, bool activate)  {
+    switch (feature) {
+#ifdef TAP_TO_WAKE_NODE
+        case Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE:
+            ::android::base::WriteStringToFile(activate ? "1" : "0", TAP_TO_WAKE_NODE);
+            break;
+#endif
+        default:
+            break;
+    }
     return Void();
 }