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#include "stdafx.h"
#include "cphidgetgeneric.h"
#include "cusb.h"
#include "csocket.h"
#include "cthread.h"
// === Internal Functions === //
//clearVars - sets all device variables to unknown state
CPHIDGETCLEARVARS(Generic)
ZEROMEM(phid->lastPacket, MAX_IN_PACKET_SIZE);
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(Generic)
TESTPTR(phid);
//Make sure no old writes are still pending
phid->outputPacketLen = 0;
ZEROMEM(phid->lastPacket, MAX_IN_PACKET_SIZE);
phid->out = phid->phid.outputReportByteLength;
phid->in = phid->phid.inputReportByteLength;
#ifdef _WINDOWS
phid->out--;
phid->in--;
#endif
return EPHIDGET_OK;
}
//dataInput - parses device packets
CPHIDGETDATA(Generic)
if (length<0) return EPHIDGET_INVALIDARG;
TESTPTR(phid);
TESTPTR(buffer);
#ifdef _WINDOWS
length--;
#endif
FIRE(Packet, buffer, length);
memcpy(phid->lastPacket, buffer, length);
return EPHIDGET_OK;
}
//eventsAfterOpen - sends out an event for all valid data, used during attach initialization
CPHIDGETINITEVENTS(Generic)
TESTPTR(phid);
return EPHIDGET_OK;
}
//getPacket - used by write thread to get the next packet to send to device
CGETPACKET_BUF(Generic)
//sendpacket - sends a packet to the device asynchronously, blocking if the 1-packet queue is full
CSENDPACKET_BUF(Generic)
// === Exported Functions === //
//create and initialize a device structure
CCREATE(Generic, PHIDCLASS_GENERIC)
//event setup functions
CFHANDLE(Generic, Packet,const unsigned char *, int)
CGET(Generic,INPacketLength,int)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_GENERIC)
TESTATTACHED
MASGN(in)
}
CGET(Generic,OUTPacketLength,int)
TESTPTRS(phid,pVal)
TESTDEVICETYPE(PHIDCLASS_GENERIC)
TESTATTACHED
MASGN(out)
}
int CCONV
CPhidgetGeneric_setPacket(CPhidgetGenericHandle phid, unsigned char *packet, int length)
{
int ret = 0;
TESTPTR(phid)
TESTDEVICETYPE(PHIDCLASS_GENERIC)
TESTATTACHED
if(length!=phid->out)
return EPHIDGET_INVALIDARG;
CThread_mutex_lock(&phid->phid.writelock);
ret = CPhidgetGeneric_sendpacket(phid, packet);
CThread_mutex_unlock(&phid->phid.writelock);
if(ret) return ret;
return EPHIDGET_OK;
}
int CCONV
CPhidgetGeneric_getLastPacket(CPhidgetGenericHandle phid, const unsigned char **packet, int *length)
{
TESTPTRS(phid, packet)
TESTPTR(length)
TESTDEVICETYPE(PHIDCLASS_GENERIC)
TESTATTACHED
*packet = phid->lastPacket;
*length = phid->in;
return EPHIDGET_OK;
}
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