X-Git-Url: http://git.osdn.net/view?p=android-x86%2Fhardware-intel-libsensors.git;a=blobdiff_plain;f=bdw_rvp%2FSensorConfig.h;fp=bdw_rvp%2FSensorConfig.h;h=67fcdad68d1aa5bec8950fae32853656507efe0c;hp=0000000000000000000000000000000000000000;hb=a7019b7ae4362a1771fa773791943cb4e746bbd8;hpb=c7308c1f363ed0bbe49dfa85bcf6d7ee708f14a5 diff --git a/bdw_rvp/SensorConfig.h b/bdw_rvp/SensorConfig.h new file mode 100644 index 0000000..67fcdad --- /dev/null +++ b/bdw_rvp/SensorConfig.h @@ -0,0 +1,189 @@ +/* + * 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 SENSOR_CONFIG_H +#define SENSOR_CONFIG_H + +#include +#include +#include + +/* Maps senor id's to the sensor list */ +enum { + accel = 0, + gyro, + compass, + light, + rotvec, + syncompass, + orientation, + pressure, + numSensorDrivers, + numFds, +}; + + + +/*****************************************************************************/ + +/* Board specific sensor configs. */ +#define GRAVITY 9.80665f +#define EVENT_TYPE_ACCEL_X REL_X +#define EVENT_TYPE_ACCEL_Y REL_Y +#define EVENT_TYPE_ACCEL_Z REL_Z + +#define EVENT_TYPE_COMP_X REL_X +#define EVENT_TYPE_COMP_Y REL_Y +#define EVENT_TYPE_COMP_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 + +#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_X +#define EVENT_TYPE_GYRO_Y REL_Y +#define EVENT_TYPE_GYRO_Z REL_Z + +#define EVENT_TYPE_PRESSURE REL_X +#define EVENT_TYPE_TEMPERATURE REL_Y + +// 720 LSG = 1G +#define LSG (1024.0f) +#define NUMOFACCDATA (8.0f) + +// 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(x) ((float(x)/1000) * (GRAVITY * -1.0)) +#define CONVERT_A_Y(x) ((float(x)/1000) * (GRAVITY * 1.0)) +#define CONVERT_A_Z(x) ((float(x)/1000) * (GRAVITY * 1.0)) +// conversion of magnetic data to uT units +#define RANGE_M (2048.0f) +#define RESOLUTION_M (0.01) +#define CONVERT_M (1.0f/6.6f) +#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 ((2000.0f / 32767.0f) * ((float)M_PI / 180.0f)) +#define CONVERT_GYRO_X (-CONVERT_GYRO) +#define CONVERT_GYRO_Y (-CONVERT_GYRO) +#define CONVERT_GYRO_Z (CONVERT_GYRO) + +// conversion of pressure and temperature data +#define CONVERT_PRESSURE (1.0f/100.0f) +#define CONVERT_TEMPERATURE (1.0f/100.0f) + +#define RESOLUTION_GYRO (RANGE_GYRO/(2000*NUMOFACCDATA)) +#define SENSOR_STATE_MASK (0x7FFF) + +// Proximity Threshold +#define PROXIMITY_THRESHOLD_GP2A 5.0f + +//Used in timespec_to_ns calculations +#define NSEC_PER_SEC 1000000000L + +#define BIT(x) (1 << (x)) + +inline unsigned int set_bit_range(int start, int end) +{ + int i; + unsigned int value = 0; + + for (i = start; i < end; ++i) + value |= BIT(i); + return value; +} + +inline float convert_from_vtf_format(int size, int exponent, unsigned int value) +{ + int divider=1; + int i; + float sample; + int mul = 1.0; + + value = value & set_bit_range(0, size*8); + if (value & BIT(size*8-1)) { + value = ((1LL << (size*8)) - value); + mul = -1.0; + } + sample = value * 1.0; + if (exponent < 0) { + exponent = abs(exponent); + for (i = 0; i < exponent; ++i) { + divider = divider*10; + } + return mul * sample/divider; + } else { + return mul * sample * pow(10.0, exponent); + } +} + +// Platform sensor orientatation +#define DEF_ORIENT_ACCEL_X -1 +#define DEF_ORIENT_ACCEL_Y -1 +#define DEF_ORIENT_ACCEL_Z -1 + +#define DEF_ORIENT_GYRO_X 1 +#define DEF_ORIENT_GYRO_Y 1 +#define DEF_ORIENT_GYRO_Z 1 + +// G to m/s2 +#define CONVERT_FROM_VTF16(s,d,x) (convert_from_vtf_format(s,d,x)) +#define CONVERT_A_G_VTF16E14_X(s,d,x) (DEF_ORIENT_ACCEL_X *\ + convert_from_vtf_format(s,d,x)*GRAVITY) +#define CONVERT_A_G_VTF16E14_Y(s,d,x) (DEF_ORIENT_ACCEL_Y *\ + convert_from_vtf_format(s,d,x)*GRAVITY) +#define CONVERT_A_G_VTF16E14_Z(s,d,x) (DEF_ORIENT_ACCEL_Z *\ + convert_from_vtf_format(s,d,x)*GRAVITY) + +// Degree/sec to radian/sec +#define CONVERT_G_D_VTF16E14_X(s,d,x) (DEF_ORIENT_GYRO_X *\ + convert_from_vtf_format(s,d,x) * ((float)M_PI/180.0f)) +#define CONVERT_G_D_VTF16E14_Y(s,d,x) (DEF_ORIENT_GYRO_Y *\ + convert_from_vtf_format(s,d,x) * ((float)M_PI/180.0f)) +#define CONVERT_G_D_VTF16E14_Z(s,d,x) (DEF_ORIENT_GYRO_Z *\ + convert_from_vtf_format(s,d,x) * ((float)M_PI/180.0f)) + +// Milli gauss to micro tesla +#define CONVERT_M_MG_VTF16E14_X(s,d,x) (convert_from_vtf_format(s,d,x)/10) +#define CONVERT_M_MG_VTF16E14_Y(s,d,x) (convert_from_vtf_format(s,d,x)/10) +#define CONVERT_M_MG_VTF16E14_Z(s,d,x) (convert_from_vtf_format(s,d,x)/10) + +/*****************************************************************************/ + +/* from bar to mbar(= hPA) */ +#define CONVERT_PR_HPA_VTF16E14(s,d,x) ((1000.0f)*convert_from_vtf_format(s,d,x)) + +#endif // SENSOR_CONFIG_H