Add SensorManager support in inputflinger.

Add sensor device, sensor input mapper, sens event dispatcher support
into inputflinger.

Bug: 161634265
Test: atest inputflinger_tests

Change-Id: I2dcb2c35d9dccefc4cd8d939b79cf340931a9410

1 files changed, 103 insertions, 0 deletions

diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index 60638caaab..23692e92d4 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -17,8 +17,10 @@
 #ifndef _LIBINPUT_INPUT_DEVICE_H
 #define _LIBINPUT_INPUT_DEVICE_H
 
+#include <android/sensor.h>
 #include <input/Input.h>
 #include <input/KeyCharacterMap.h>
+#include <unordered_map>
 #include <vector>
 
 namespace android {
@@ -63,6 +65,97 @@ struct InputDeviceIdentifier {
     std::string getCanonicalName() const;
 };
 
+/* Types of input device sensors. Keep sync with core/java/android/hardware/Sensor.java */
+enum class InputDeviceSensorType : int32_t {
+    ACCELEROMETER = ASENSOR_TYPE_ACCELEROMETER,
+    MAGNETIC_FIELD = ASENSOR_TYPE_MAGNETIC_FIELD,
+    ORIENTATION = 3,
+    GYROSCOPE = ASENSOR_TYPE_GYROSCOPE,
+    LIGHT = ASENSOR_TYPE_LIGHT,
+    PRESSURE = ASENSOR_TYPE_PRESSURE,
+    TEMPERATURE = 7,
+    PROXIMITY = ASENSOR_TYPE_PROXIMITY,
+    GRAVITY = ASENSOR_TYPE_GRAVITY,
+    LINEAR_ACCELERATION = ASENSOR_TYPE_LINEAR_ACCELERATION,
+    ROTATION_VECTOR = ASENSOR_TYPE_ROTATION_VECTOR,
+    RELATIVE_HUMIDITY = ASENSOR_TYPE_RELATIVE_HUMIDITY,
+    AMBIENT_TEMPERATURE = ASENSOR_TYPE_AMBIENT_TEMPERATURE,
+    MAGNETIC_FIELD_UNCALIBRATED = ASENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED,
+    GAME_ROTATION_VECTOR = ASENSOR_TYPE_GAME_ROTATION_VECTOR,
+    GYROSCOPE_UNCALIBRATED = ASENSOR_TYPE_GYROSCOPE_UNCALIBRATED,
+    SIGNIFICANT_MOTION = ASENSOR_TYPE_SIGNIFICANT_MOTION,
+};
+
+enum class InputDeviceSensorAccuracy : int32_t {
+    ACCURACY_NONE = 0,
+    ACCURACY_LOW = 1,
+    ACCURACY_MEDIUM = 2,
+    ACCURACY_HIGH = 3,
+};
+
+enum class InputDeviceSensorReportingMode : int32_t {
+    CONTINUOUS = 0,
+    ON_CHANGE = 1,
+    ONE_SHOT = 2,
+    SPECIAL_TRIGGER = 3,
+};
+
+struct InputDeviceSensorInfo {
+    explicit InputDeviceSensorInfo(std::string name, std::string vendor, int32_t version,
+                                   InputDeviceSensorType type, InputDeviceSensorAccuracy accuracy,
+                                   float maxRange, float resolution, float power, int32_t minDelay,
+                                   int32_t fifoReservedEventCount, int32_t fifoMaxEventCount,
+                                   std::string stringType, int32_t maxDelay, int32_t flags,
+                                   int32_t id)
+          : name(name),
+            vendor(vendor),
+            version(version),
+            type(type),
+            accuracy(accuracy),
+            maxRange(maxRange),
+            resolution(resolution),
+            power(power),
+            minDelay(minDelay),
+            fifoReservedEventCount(fifoReservedEventCount),
+            fifoMaxEventCount(fifoMaxEventCount),
+            stringType(stringType),
+            maxDelay(maxDelay),
+            flags(flags),
+            id(id) {}
+    // Name string of the sensor.
+    std::string name;
+    // Vendor string of this sensor.
+    std::string vendor;
+    // Version of the sensor's module.
+    int32_t version;
+    // Generic type of this sensor.
+    InputDeviceSensorType type;
+    // The current accuracy of sensor event.
+    InputDeviceSensorAccuracy accuracy;
+    // Maximum range of the sensor in the sensor's unit.
+    float maxRange;
+    // Resolution of the sensor in the sensor's unit.
+    float resolution;
+    // The power in mA used by this sensor while in use.
+    float power;
+    // The minimum delay allowed between two events in microsecond or zero if this sensor only
+    // returns a value when the data it's measuring changes.
+    int32_t minDelay;
+    // Number of events reserved for this sensor in the batch mode FIFO.
+    int32_t fifoReservedEventCount;
+    // Maximum number of events of this sensor that could be batched.
+    int32_t fifoMaxEventCount;
+    // The type of this sensor as a string.
+    std::string stringType;
+    // The delay between two sensor events corresponding to the lowest frequency that this sensor
+    // supports.
+    int32_t maxDelay;
+    // Sensor flags
+    int32_t flags;
+    // Sensor id, same as the input device ID it belongs to.
+    int32_t id;
+};
+
 /*
  * Describes the characteristics and capabilities of an input device.
  */
@@ -104,6 +197,7 @@ public:
     void addMotionRange(int32_t axis, uint32_t source,
             float min, float max, float flat, float fuzz, float resolution);
     void addMotionRange(const MotionRange& range);
+    void addSensorInfo(const InputDeviceSensorInfo& info);
 
     inline void setKeyboardType(int32_t keyboardType) { mKeyboardType = keyboardType; }
     inline int32_t getKeyboardType() const { return mKeyboardType; }
@@ -122,10 +216,17 @@ public:
     inline void setButtonUnderPad(bool hasButton) { mHasButtonUnderPad = hasButton; }
     inline bool hasButtonUnderPad() const { return mHasButtonUnderPad; }
 
+    inline void setHasSensor(bool hasSensor) { mHasSensor = hasSensor; }
+    inline bool hasSensor() const { return mHasSensor; }
+
     inline const std::vector<MotionRange>& getMotionRanges() const {
         return mMotionRanges;
     }
 
+    const InputDeviceSensorInfo* getSensorInfo(InputDeviceSensorType type);
+
+    const std::vector<InputDeviceSensorType> getSensorTypes();
+
 private:
     int32_t mId;
     int32_t mGeneration;
@@ -139,8 +240,10 @@ private:
     std::shared_ptr<KeyCharacterMap> mKeyCharacterMap;
     bool mHasVibrator;
     bool mHasButtonUnderPad;
+    bool mHasSensor;
 
     std::vector<MotionRange> mMotionRanges;
+    std::unordered_map<InputDeviceSensorType, InputDeviceSensorInfo> mSensors;
 };
 
 /* Types of input device configuration files. */