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+/*
+ * Copyright (C) 2015 Intel Corp
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TILT_SENSOR_H
+#define ANDROID_TILT_SENSOR_H
+
+#include <stdint.h>
+#include <errno.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include "sensors.h"
+#include "SensorBase.h"
+#include "InputEventReader.h"
+
+#include "clockwork_sensor.h"
+
+
+#define INPUT_SYSFS_BASE "/sys/class/i2c-adapter/i2c-4/4-001e"
+#define POLL_PERIOD_MS "poll_period_ms"
+#define RANGE "range"
+#define ENABLE_DEVICE "enable_device"
+#define ENABLE_INTERRUPT_OUTPUT "enable_interrupt_output"
+#define ENABLE_STATE_PROG "enable_state_prog"
+#ifdef TILT_DEBUG
+#define REG_VALUE "reg_value"
+#define REG_ADDR "reg_addr"
+#endif
+
+
+struct input_event;
+
+class TiltSensor : public SensorBase {
+public:
+ TiltSensor();
+ virtual ~TiltSensor();
+
+ virtual int readEvents(sensors_event_t* data, int count);
+ virtual int setDelay(int32_t handle, int64_t ns);
+ virtual int enable(int32_t handle, int enabled);
+#ifdef HAL_VERSION_GT_1_0
+ virtual int batch(int handle, int flags, int64_t period_ns, int64_t timeout);
+#endif
+
+private:
+ int mEnabled;
+ InputEventCircularReader mInputReader;
+ sensors_event_t mPendingEvent;
+};
+#endif // ANDROID_TILT_SENSOR_H