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+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * 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_SENSORS_H
+#define ANDROID_SENSORS_H
+
+#include <stdint.h>
+#include <errno.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <linux/input.h>
+
+#include <hardware/hardware.h>
+#include <hardware/sensors.h>
+
+__BEGIN_DECLS
+
+/*****************************************************************************/
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+
+#define LOG_TAG "sensorscpp"
+
+#define ID_A (0)
+#define ID_M (1)
+#define ID_O (2)
+#define ID_L (3)
+#define ID_P (4)
+#define ID_GY (5)
+#define ID_PR (6)
+
+/*****************************************************************************/
+
+/*
+ * The SENSORS Module
+ */
+
+/* the CM3663 is a binary proximity sensor that triggers around 6 cm on
+ * this hardware */
+#define PROXIMITY_THRESHOLD_CM 6.0f
+
+/*****************************************************************************/
+
+#define EVENT_TYPE_ACCEL_X ABS_X //1
+#define EVENT_TYPE_ACCEL_Y ABS_Y //0
+#define EVENT_TYPE_ACCEL_Z ABS_Z //2
+
+#define EVENT_TYPE_YAW ABS_RX //3
+#define EVENT_TYPE_PITCH ABS_RY //4
+#define EVENT_TYPE_ROLL ABS_RZ //5
+#define EVENT_TYPE_ORIENT_STATUS ABS_WHEEL //8
+
+#define EVENT_TYPE_MAGV_X ABS_THROTTLE // 6
+#define EVENT_TYPE_MAGV_Y ABS_RUDDER // 7
+#define EVENT_TYPE_MAGV_Z ABS_GAS // 9
+#define EVENT_TYPE_MAGV_ACC ABS_WHEEL // 8
+
+#define EVENT_TYPE_TEMPERATURE ABS_THROTTLE
+#define EVENT_TYPE_STEP_COUNT ABS_GAS
+#define EVENT_TYPE_PROXIMITY ABS_DISTANCE
+#define EVENT_TYPE_LIGHT REL_MISC
+
+#define EVENT_TYPE_GYRO_X REL_RX
+#define EVENT_TYPE_GYRO_Y REL_RY
+#define EVENT_TYPE_GYRO_Z REL_RZ
+
+#define EVENT_TYPE_PRESSURE REL_X
+
+#define LSG (1000.0f)
+
+// conversion of acceleration data to SI units (m/s^2)
+#define RANGE_A (2*GRAVITY_EARTH)
+#define RESOLUTION_A (GRAVITY_EARTH / LSG)
+#define CONVERT_A (GRAVITY_EARTH / LSG)
+#define CONVERT_A_X (CONVERT_A)
+#define CONVERT_A_Y (CONVERT_A)
+#define CONVERT_A_Z (CONVERT_A)
+
+// conversion of magnetic data to uT units
+#define CONVERT_M (1.0f/16.0f)
+#define CONVERT_M_X (-CONVERT_M)
+#define CONVERT_M_Y (-CONVERT_M)
+#define CONVERT_M_Z (CONVERT_M)
+
+// conversion of gyro data to SI units (radian/sec)
+#define RANGE_GYRO (500.0f*(float)M_PI/180.0f)
+#define CONVERT_GYRO ((70.0f / 4000.0f) * ((float)M_PI / 180.0f))
+#define CONVERT_GYRO_X (CONVERT_GYRO)
+#define CONVERT_GYRO_Y (CONVERT_GYRO)
+#define CONVERT_GYRO_Z (CONVERT_GYRO)
+
+#define SENSOR_STATE_MASK (0x7FFF)
+
+/*****************************************************************************/
+
+__END_DECLS
+
+#endif // ANDROID_SENSORS_H