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#include "stdafx.h"
#include "cphidgetaccelerometer.h"
#include "cusb.h"
#include "math.h"
#include "csocket.h"
#include "cthread.h"
// === Internal Functions === //
//clearVars - sets all device variables to unknown state
CPHIDGETCLEARVARS(Accelerometer)
int i = 0;
phid->accelerationMax = PUNI_DBL;
phid->accelerationMin = PUNI_DBL;
for (i = 0; i<ACCEL_MAXAXES; i++)
{
phid->axis[i] = PUNI_DBL;
phid->axisLastTrigger[i] = PUNK_DBL;
phid->axisChangeTrigger[i] = PUNI_DBL;
}
return EPHIDGET_OK;
}
//initAfterOpen - sets up the initial state of an object, reading in packets from the device if needed
// used during attach initialization - on every attach
CPHIDGETINIT(Accelerometer)
int i = 0;
TESTPTR(phid);
//Setup max/min values
switch(phid->phid.deviceIDSpec)
{
case PHIDID_ACCELEROMETER_2AXIS:
if (phid->phid.deviceVersion < 200)
{
phid->accelerationMax = 2.1;
phid->accelerationMin = -2.1;
}
else if ((phid->phid.deviceVersion >= 200) && (phid->phid.deviceVersion < 300))
{
phid->accelerationMax = 10.1;
phid->accelerationMin = -10.1;
}
else if ((phid->phid.deviceVersion >= 300) && (phid->phid.deviceVersion < 400))
{
phid->accelerationMax = 5.1;
phid->accelerationMin = -5.1;
}
else
return EPHIDGET_BADVERSION;
break;
case PHIDID_ACCELEROMETER_3AXIS:
if ((phid->phid.deviceVersion >= 400) && (phid->phid.deviceVersion < 500))
{
phid->accelerationMax = 3.1;
phid->accelerationMin = -3.1;
}
else
return EPHIDGET_BADVERSION;
break;
default:
return EPHIDGET_UNEXPECTED;
}
//initialize triggers, set data arrays to unknown
for (i = 0; i<phid->phid.attr.accelerometer.numAxis; i++)
{
phid->axis[i] = PUNK_DBL;
phid->axisLastTrigger[i] = PUNK_DBL;
phid->axisChangeTrigger[i] = 0.001;
}
//issue one read
CPhidget_read((CPhidgetHandle)phid);
return EPHIDGET_OK;
}
//dataInput - parses device packets
CPHIDGETDATA(Accelerometer)
int i = 0;
double axis[ACCEL_MAXAXES];
if (length<0) return EPHIDGET_INVALIDARG;
TESTPTR(phid);
TESTPTR(buffer);
ZEROMEM(axis, sizeof(axis));
//Parse device packets - store data locally
switch(phidG->deviceIDSpec)
{
case PHIDID_ACCELEROMETER_2AXIS:
if (phidG->deviceVersion < 200)
{
int data = 0;
data = (signed short)((unsigned short)buffer[0]+((unsigned short)buffer[1]<<8));
axis[0] = round_double((((double)data-16384) / 2000), 4);
data = (signed short)((unsigned short)buffer[2]+((unsigned short)buffer[3]<<8));
axis[1] = round_double((((double)data-16384) / 2000), 4);
}
else if ((phidG->deviceVersion >= 200) && (phidG->deviceVersion < 300))
{
int data = 0;
data = (signed short)((unsigned short)buffer[0]+((unsigned short)buffer[1]<<8));
axis[0] = round_double((((double)data-16384) / 650), 4);
data = (signed short)((unsigned short)buffer[2]+((unsigned short)buffer[3]<<8));
axis[1] = round_double((((double)data-16384) / 650), 4);
}
else if ((phidG->deviceVersion >= 300) && (phidG->deviceVersion < 400))
{
int data = 0;
data = ((unsigned short)buffer[0]+((unsigned short)buffer[1]<<8));
axis[0] = round_double((((double)(data-32768)) / 4000), 5);
data = ((unsigned short)buffer[2]+((unsigned short)buffer[3]<<8));
axis[1] = round_double((((double)(data-32768)) / 4000), 5);
}
else
return EPHIDGET_UNEXPECTED;
break;
case PHIDID_ACCELEROMETER_3AXIS:
if ((phidG->deviceVersion >= 400) && (phidG->deviceVersion < 500))
{
int data = 0;
data = ((unsigned short)buffer[0]+((unsigned short)buffer[1]<<8));
axis[0] = round_double((((double)(data-32768)) / 6553.6), 5);
data = ((unsigned short)buffer[2]+((unsigned short)buffer[3]<<8));
axis[1] = round_double((((double)(data-32768)) / 6553.6), 5);
data = ((unsigned short)buffer[4]+((unsigned short)buffer[5]<<8));
axis[2] = round_double((((double)(data-32768)) / 6553.6), 5);
}
else
return EPHIDGET_UNEXPECTED;
break;
default:
return EPHIDGET_UNEXPECTED;
}
//Make sure values are within defined range, and store to structure
for (i = 0; i<phid->phid.attr.accelerometer.numAxis; i++)
{
if(axis[i] > phid->accelerationMax) axis[i] = phid->accelerationMax;
if(axis[i] < phid->accelerationMin) axis[i] = phid->accelerationMin;
phid->axis[i] = axis[i];
}
//send out any events that exceed or match the trigger
for (i = 0; i<phid->phid.attr.accelerometer.numAxis; i++)
{
if (fabs(phid->axis[i] - phid->axisLastTrigger[i]) >= phid->axisChangeTrigger[i]
|| phid->axisLastTrigger[i] == PUNK_DBL)
{
FIRE(AccelerationChange, i, phid->axis[i]);
phid->axisLastTrigger[i] = phid->axis[i];
}
}
return EPHIDGET_OK;
}
//eventsAfterOpen - sends out an event for all valid data, used during attach initialization
CPHIDGETINITEVENTS(Accelerometer)
for (i = 0; i<phid->phid.attr.accelerometer.numAxis; i++)
{
if(phid->axis[i] != PUNK_DBL)
{
FIRE(AccelerationChange, i, phid->axis[i]);
phid->axisLastTrigger[i] = phid->axis[i];
}
}
return EPHIDGET_OK;
}
//getPacket - not used for accelerometer
CGETPACKET(Accelerometer)
return EPHIDGET_UNEXPECTED;
}
// === Exported Functions === //
//create and initialize a device structure
CCREATE(Accelerometer, PHIDCLASS_ACCELEROMETER)
//event setup functions
CFHANDLE(Accelerometer, AccelerationChange, int, double)
CGET(Accelerometer,AxisCount,int)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_ACCELEROMETER)
TESTATTACHED
MASGN(phid.attr.accelerometer.numAxis)
}
CGETINDEX(Accelerometer,Acceleration,double)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_ACCELEROMETER)
TESTATTACHED
TESTINDEX(phid.attr.accelerometer.numAxis)
TESTMASGN(axis[Index], PUNK_DBL)
MASGN(axis[Index])
}
CGETINDEX(Accelerometer,AccelerationMax,double)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_ACCELEROMETER)
TESTATTACHED
TESTINDEX(phid.attr.accelerometer.numAxis)
TESTMASGN(accelerationMax, PUNK_DBL)
MASGN(accelerationMax)
}
CGETINDEX(Accelerometer,AccelerationMin,double)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_ACCELEROMETER)
TESTATTACHED
TESTINDEX(phid.attr.accelerometer.numAxis)
TESTMASGN(accelerationMin, PUNK_DBL)
MASGN(accelerationMin)
}
CGETINDEX(Accelerometer,AccelerationChangeTrigger,double)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_ACCELEROMETER)
TESTATTACHED
TESTINDEX(phid.attr.accelerometer.numAxis)
TESTMASGN(axisChangeTrigger[Index], PUNK_DBL)
MASGN(axisChangeTrigger[Index])
}
CSETINDEX(Accelerometer,AccelerationChangeTrigger,double)
TESTPTR(phid)
TESTDEVICETYPE(PHIDCLASS_ACCELEROMETER)
TESTATTACHED
TESTINDEX(phid.attr.accelerometer.numAxis)
TESTRANGE(0, phid->accelerationMax - phid->accelerationMin)
if(CPhidget_statusFlagIsSet(phid->phid.status, PHIDGET_REMOTE_FLAG))
ADDNETWORKKEYINDEXED(Trigger, "%lE", axisChangeTrigger);
else
phid->axisChangeTrigger[Index] = newVal;
return EPHIDGET_OK;
}
// === Deprecated Functions === //
CGET(Accelerometer,NumAxis,int)
return CPhidgetAccelerometer_getAxisCount(phid, pVal);
}
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