/* * 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 // 64 LSB = 1G for KR3DM #define LSB (64.0f) #define NUMOFACCDATA (8.0f) // conversion of acceleration data to SI units (m/s^2) #define RANGE_A (2*GRAVITY_EARTH) #define CONVERT_A (GRAVITY_EARTH / LSB / 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