Added the ability to read external batteries

Extended InputDevice and EventHub with capabilites to detect and read
external battery status and capacity. This allows devices such as
wireless gamepads to provide battery information to applications.

Bug: 161633432
Test: atest InputDeviceBatteryTest

Change-Id: I3c65166a1f0b055c5b85bad286afd5beb60bb303
Merged-In: I3c65166a1f0b055c5b85bad286afd5beb60bb303

1 files changed, 4 insertions, 0 deletions

diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index 23692e92d4..2bd7bd2004 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -213,6 +213,9 @@ public:
     inline void setVibrator(bool hasVibrator) { mHasVibrator = hasVibrator; }
     inline bool hasVibrator() const { return mHasVibrator; }
 
+    inline void setHasBattery(bool hasBattery) { mHasBattery = hasBattery; }
+    inline bool hasBattery() const { return mHasBattery; }
+
     inline void setButtonUnderPad(bool hasButton) { mHasButtonUnderPad = hasButton; }
     inline bool hasButtonUnderPad() const { return mHasButtonUnderPad; }
 
@@ -239,6 +242,7 @@ private:
     int32_t mKeyboardType;
     std::shared_ptr<KeyCharacterMap> mKeyCharacterMap;
     bool mHasVibrator;
+    bool mHasBattery;
     bool mHasButtonUnderPad;
     bool mHasSensor;