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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 ID_A (0)
#define ID_M (1)
#define ID_O (2)
#define ID_L (3)
#define ID_P (4)
#define ID_GY (5)
/*****************************************************************************/
/*
* The SENSORS Module
*/
/* the GP2A is a binary proximity sensor that triggers around 5 cm on
* this hardware */
#define PROXIMITY_THRESHOLD_GP2A 5.0f
/*****************************************************************************/
#define AKM_DEVICE_NAME "/dev/akm8973_aot"
#define EVENT_TYPE_ACCEL_X REL_Y
#define EVENT_TYPE_ACCEL_Y REL_X
#define EVENT_TYPE_ACCEL_Z REL_Z
#define EVENT_TYPE_YAW REL_RX
#define EVENT_TYPE_PITCH REL_RY
#define EVENT_TYPE_ROLL REL_RZ
#define EVENT_TYPE_ORIENT_STATUS REL_WHEEL
/* For AK8973iB */
#define EVENT_TYPE_MAGV_X REL_DIAL
#define EVENT_TYPE_MAGV_Y REL_HWHEEL
#define EVENT_TYPE_MAGV_Z REL_MISC
#define EVENT_TYPE_PROXIMITY ABS_DISTANCE
#define EVENT_TYPE_LIGHT ABS_MISC
#define EVENT_TYPE_GYRO_X REL_RY
#define EVENT_TYPE_GYRO_Y REL_RX
#define EVENT_TYPE_GYRO_Z REL_RZ
// 720 LSG = 1G
#define LSG (720.0f)
#define NUMOFACCDATA 8
// conversion of acceleration data to SI units (m/s^2)
#define RANGE_A (2*GRAVITY_EARTH)
#define RESOLUTION_A (RANGE_A/(256*NUMOFACCDATA))
#define CONVERT_A (GRAVITY_EARTH / LSG / NUMOFACCDATA)
#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 orientation data to degree units */
#define CONVERT_O (1.0f/64.0f)
#define CONVERT_O_A (CONVERT_O)
#define CONVERT_O_P (CONVERT_O)
#define CONVERT_O_R (-CONVERT_O)
// conversion of gyro data to SI units (radian/sec)
#define RANGE_GYRO (2000.0f*(float)M_PI/180.0f)
#define CONVERT_GYRO ((70.0f / 1000.0f) * ((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