diff options
Diffstat (limited to 'AK8975_FS/libsensors/sensors.h')
-rw-r--r-- | AK8975_FS/libsensors/sensors.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/AK8975_FS/libsensors/sensors.h b/AK8975_FS/libsensors/sensors.h new file mode 100644 index 0000000..6060e6a --- /dev/null +++ b/AK8975_FS/libsensors/sensors.h @@ -0,0 +1,85 @@ +/* + * 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) + +/*****************************************************************************/ + +/* + * The SENSORS Module + */ + +/*****************************************************************************/ + +/* For ADXL346 */ +#define EVENT_TYPE_ACCEL_X ABS_X +#define EVENT_TYPE_ACCEL_Y ABS_Y +#define EVENT_TYPE_ACCEL_Z ABS_Z +#define EVENT_TYPE_ACCEL_STATUS ABS_THROTTLE + +/* For AK8975 */ +#define EVENT_TYPE_MAGV_X ABS_RX +#define EVENT_TYPE_MAGV_Y ABS_RY +#define EVENT_TYPE_MAGV_Z ABS_RZ +#define EVENT_TYPE_MAGV_STATUS ABS_RUDDER + +/* Fro AKM Algorithm */ +#define EVENT_TYPE_YAW ABS_HAT0X +#define EVENT_TYPE_PITCH ABS_HAT0Y +#define EVENT_TYPE_ROLL ABS_HAT1X +#define EVENT_TYPE_ORIENT_STATUS ABS_HAT1Y + + +/* conversion of acceleration data to SI units (m/s^2) */ +/* 720 LSB = 1G */ +#define LSG (256.0f) +#define AKSC_LSG (720.0f) +#define CONVERT_A (GRAVITY_EARTH / LSG) + +/* conversion of magnetic data to uT units */ +#define CONVERT_M (0.06f) + +/* conversion of orientation data to degree units */ +#define CONVERT_O (0.015625f) + +#define SENSOR_STATE_MASK (0x7FFF) + +/*****************************************************************************/ + +__END_DECLS + +#endif // ANDROID_SENSORS_H |