From f934f86c8f53dfab3a42daebf1e0f3a418da5509 Mon Sep 17 00:00:00 2001
From: Cosmin Tanislav <demonsingur@gmail.com>
Date: Wed, 21 Sep 2022 10:09:08 +0530
Subject: [PATCH] eqs: sensors: Implement double tap sensor

Change-Id: I6c217c994d6e4d5ae062a31a44fffc9f097a7f6f
---
 .../eqs/Frameworks/res/values/config.xml           |  3 +++
 rootdir/etc/init/hw/init.mmi.overlay.rc            |  5 +++++
 sensors/Sensor.h                                   | 14 ++++++++++++++
 sensors/SensorsSubHal.cpp                          |  4 +++-
 4 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/resource-overlay/eqs/Frameworks/res/values/config.xml b/resource-overlay/eqs/Frameworks/res/values/config.xml
index 457fbad..c8fe1b4 100644
--- a/resource-overlay/eqs/Frameworks/res/values/config.xml
+++ b/resource-overlay/eqs/Frameworks/res/values/config.xml
@@ -275,4 +275,7 @@
 
     <!-- How long it takes for the HW to start illuminating after the illumination is requested. -->
     <integer name="config_udfps_illumination_transition_ms">0</integer>
+
+    <!-- Type of the double tap sensor. Empty if double tap is not supported. -->
+    <string name="config_dozeDoubleTapSensorType" translatable="false">org.lineageos.sensor.double_tap</string>
 </resources>
diff --git a/rootdir/etc/init/hw/init.mmi.overlay.rc b/rootdir/etc/init/hw/init.mmi.overlay.rc
index 18c648f..c49dadc 100644
--- a/rootdir/etc/init/hw/init.mmi.overlay.rc
+++ b/rootdir/etc/init/hw/init.mmi.overlay.rc
@@ -42,6 +42,11 @@ on early-boot
     chmod 0664 /sys/class/power_supply/battery/device/force_charging_enable
     chown vendor_tcmd system /sys/class/power_supply/battery/device/force_charging_enable
 
+on post-fs
+    # Sensors
+    chown system system /sys/devices/platform/soc/990000.i2c/i2c-0/0-005d/touchscreen/primary/double_tap_enabled
+    chown system system /sys/devices/platform/soc/990000.i2c/i2c-0/0-005d/touchscreen/primary/double_tap_pressed
+
 on post-fs-data
     # Param updater data for various modules
     mkdir /data/vendor/param 0775 system system
diff --git a/sensors/Sensor.h b/sensors/Sensor.h
index f6fe7a5..dce8e31 100644
--- a/sensors/Sensor.h
+++ b/sensors/Sensor.h
@@ -120,6 +120,20 @@ class SysfsPollingOneShotSensor : public OneShotSensor {
     int mPollFd;
 };
 
+const std::string kTsPath = "/sys/class/touchscreen/primary/";
+
+const std::string kTsDoubleTapPressedPath = kTsPath + "double_tap_pressed";
+const std::string kTsDoubleTapEnabledPath = kTsPath + "double_tap_enabled";
+
+class DoubleTapSensor : public SysfsPollingOneShotSensor {
+  public:
+    DoubleTapSensor(int32_t sensorHandle, ISensorsEventCallback* callback)
+        : SysfsPollingOneShotSensor(
+              sensorHandle, callback, kTsDoubleTapPressedPath, kTsDoubleTapEnabledPath,
+              "Double Tap Sensor", "org.lineageos.sensor.double_tap",
+              static_cast<SensorType>(static_cast<int32_t>(SensorType::DEVICE_PRIVATE_BASE) + 1)) {}
+};
+
 }  // namespace implementation
 }  // namespace subhal
 }  // namespace V2_1
diff --git a/sensors/SensorsSubHal.cpp b/sensors/SensorsSubHal.cpp
index 6cbcb56..9281bfa 100644
--- a/sensors/SensorsSubHal.cpp
+++ b/sensors/SensorsSubHal.cpp
@@ -32,7 +32,9 @@ namespace implementation {
 using ::android::hardware::Void;
 using ::android::hardware::sensors::V2_0::implementation::ScopedWakelock;
 
-SensorsSubHal::SensorsSubHal() : mCallback(nullptr), mNextHandle(1) {}
+SensorsSubHal::SensorsSubHal() : mCallback(nullptr), mNextHandle(1) {
+    AddSensor<DoubleTapSensor>();
+}
 
 Return<void> SensorsSubHal::getSensorsList_2_1(ISensors::getSensorsList_2_1_cb _hidl_cb) {
     std::vector<SensorInfo> sensors;