179 lines
5.5 KiB
C
Executable File
179 lines
5.5 KiB
C
Executable File
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SENSORS_H
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#define ANDROID_SENSORS_H
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#include <stdint.h>
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#include <errno.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <linux/input.h>
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#include <hardware/hardware.h>
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#include <hardware/sensors.h>
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#include "mma8452_kernel.h" // 声明驱动为 HAL 提供的功能接口. 应该用更加抽象的文件名.
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//#define ENABLE_DEBUG_LOG
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#include "akm8975/custom_log.h"
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/*
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sensor hal v1.1 add pressure and temperature support 2013-2-27
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sensor hal v1.2 add akm8963 support 2013-3-10
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sensor hal v1.3 modify akm device name from akmd8975 to akmd 2013-3-14
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sensor hal v1.4 add akm09911 support 2013-3-21
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sensor hal v1.5 add angle calculation and calibration of gsensor support 2013-9-1
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sensor hal v1.6 upagrde sensors device api version to SENSORS_DEVICE_API_VERSION_1_3
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*/
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#define SENSOR_VERSION_AND_TIME "sensor hal v1.6 upagrde sensors device api version to SENSORS_DEVICE_API_VERSION_1_3"
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#ifndef M_PI
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#define M_PI 3.14159265358979323846 // matches value in gcc v2 math.h
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#endif
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__BEGIN_DECLS
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/*****************************************************************************/
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int init_nusensors(hw_module_t const* module, hw_device_t** device);
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/*****************************************************************************/
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
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#define ID_A (0)
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#define ID_M (1)
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#define ID_O (2)
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#define ID_P (3)
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#define ID_L (4)
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#define ID_GY (5)
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#define ID_PR (6)
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#define ID_TMP (7)
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/*****************************************************************************/
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/*
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* The SENSORS Module
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*/
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/* the CM3602 is a binary proximity sensor that triggers around 9 cm on
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* this hardware */
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#define PROXIMITY_THRESHOLD_CM 9.0f
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/*****************************************************************************/
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#define MMA_DEVICE_NAME GSENSOR_DEV_PATH
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/** akm sensor(M 和 O sensor) 的控制设备文件路径. */
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#define AKM_DEVICE_NAME "/dev/compass"
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#define PS_DEVICE_NAME "/dev/psensor"
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#define LS_DEVICE_NAME "/dev/lightsensor"
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#define GY_DEVICE_NAME "/dev/gyrosensor"
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#define PR_DEVICE_NAME "/dev/pressure"
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#define TMP_DEVICE_NAME "/dev/temperature"
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#define EVENT_TYPE_ACCEL_X ABS_X
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#define EVENT_TYPE_ACCEL_Y ABS_Y
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#define EVENT_TYPE_ACCEL_Z ABS_Z
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#define EVENT_TYPE_ACCEL_STATUS ABS_WHEEL
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#define EVENT_TYPE_YAW ABS_RX
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#define EVENT_TYPE_PITCH ABS_RY
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#define EVENT_TYPE_ROLL ABS_RZ
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#define EVENT_TYPE_ORIENT_STATUS ABS_RUDDER
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#define EVENT_TYPE_MAGV_X ABS_HAT0X
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#define EVENT_TYPE_MAGV_Y ABS_HAT0Y
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#define EVENT_TYPE_MAGV_Z ABS_BRAKE
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#define EVENT_TYPE_MAGV_STATUS ABS_HAT1X
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#define EVENT_TYPE_TEMPERATURE ABS_THROTTLE
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#define EVENT_TYPE_STEP_COUNT ABS_GAS
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#define EVENT_TYPE_PROXIMITY ABS_DISTANCE
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#define EVENT_TYPE_LIGHT ABS_MISC
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#define EVENT_TYPE_GYRO_X REL_RX
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#define EVENT_TYPE_GYRO_Y REL_RY
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#define EVENT_TYPE_GYRO_Z REL_RZ
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#define EVENT_TYPE_PRESSURE ABS_PRESSURE
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/** 表征相同的 加速度物理量的时候, Android 上层使用的 数值 和 sensor 数据设备送出的 数值 的 比值. */
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#define ACCELERATION_RATIO_ANDROID_TO_HW (9.80665f / 16384) //16bit sensor数据，量程为+-2G时候的比例
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/*-------------------------------------------------------*/
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// 720 LSG = 1G
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#define LSG (720.0f)
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// conversion of acceleration data to SI units (m/s^2)
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#define CONVERT_A (GRAVITY_EARTH / LSG)
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#define CONVERT_A_X (CONVERT_A)
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#define CONVERT_A_Y (CONVERT_A)
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#define CONVERT_A_Z (CONVERT_A)
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// conversion of magnetic data (for AK8975) to uT units
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#define CONVERT_M (1.0f*0.06f)
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#define CONVERT_M_X (CONVERT_M)
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#define CONVERT_M_Y (CONVERT_M)
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#define CONVERT_M_Z (CONVERT_M)
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// conversion of orientation data to degree units
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#define CONVERT_O (1.0f/64.0f)
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#define CONVERT_O_A (CONVERT_O)
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#define CONVERT_O_P (CONVERT_O)
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#define CONVERT_O_R (CONVERT_O)
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// conversion of gyro data to SI units (radian/sec)
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// conversion of gyro data to dps fs 2000dps
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// = 2000*Pi /(32768 * 180)
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#define RANGE_GYRO (2000.0f*(float)M_PI/180.0f)
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#define CONVERT_GYRO (0.001065264)
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#define CONVERT_GYRO_X (CONVERT_GYRO)
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#define CONVERT_GYRO_Y (CONVERT_GYRO)
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#define CONVERT_GYRO_Z (CONVERT_GYRO)
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#define CONVERT_B (1.0f/100.0f)
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#define SENSOR_STATE_MASK (0x7FFF)
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/*****************************************************************************/
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// #define D_ENTER() D("Entered.")
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#define D_ENTER(...) D("Entered : " __VA_ARGS__)
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#define D_EXIT(result) D("about to Exit : " #result " = %d", result)
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/*****************************************************************************/
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__END_DECLS
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#endif // ANDROID_SENSORS_H
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