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#include "XnClientUSBConnectionFactory.h"
#include "XnClientUSBControlEndpoint.h"
#include "XnClientUSBOutDataEndpoint.h"
#include "XnClientUSBInDataEndpoint.h"
#include "XnLinkProtoUtils.h"
#include <XnUSB.h>
#include <XnLog.h>
#define XN_MASK_USB "xnUSB"
namespace xn
{
const XnUInt16 ClientUSBConnectionFactory::NUM_INPUT_CONNECTIONS = 2;
ClientUSBConnectionFactory::ClientUSBConnectionFactory(XnUInt16 nInputConnections,
XnUInt16 nOutputConnections,
XnUInt32 nPreControlReceiveSleep) :
m_nInputConnections(nInputConnections),
m_nOutputConnections(nOutputConnections),
m_nPreControlReceiveSleep(nPreControlReceiveSleep),
m_nAltInterface(0),
m_controlEndpoint(nPreControlReceiveSleep),
m_hUSBDevice(NULL),
m_bInitialized(FALSE),
m_bUsbInitialized(FALSE),
m_dataOpen(FALSE)
{
}
ClientUSBConnectionFactory::~ClientUSBConnectionFactory()
{
Shutdown();
}
XnStatus ClientUSBConnectionFactory::Init(const XnChar* strConnString)
{
XnStatus nRetVal = xnUSBInit();
XN_IS_STATUS_OK_LOG_ERROR("Initialize USB", nRetVal);
m_bUsbInitialized = TRUE;
nRetVal = xnUSBOpenDeviceByPath(strConnString, &m_hUSBDevice);
XN_IS_STATUS_OK_LOG_ERROR("Open USB device", nRetVal);
//TODO: Check speed maybe?
nRetVal = m_controlEndpoint.Init(m_hUSBDevice);
XN_IS_STATUS_OK_LOG_ERROR("Init usb control endpoint", nRetVal);
m_bInitialized = TRUE;
return XN_STATUS_OK;
}
void ClientUSBConnectionFactory::Shutdown()
{
m_controlEndpoint.Shutdown();
//Close USB device
if (m_hUSBDevice != NULL)
{
xnUSBCloseDevice(m_hUSBDevice);
m_hUSBDevice = NULL;
}
if (m_bUsbInitialized)
{
xnUSBShutdown();
m_bUsbInitialized = FALSE;
}
m_bInitialized = FALSE;
}
XnUInt16 ClientUSBConnectionFactory::GetNumInputDataConnections() const
{
return m_nInputConnections;
}
XnUInt16 ClientUSBConnectionFactory::GetNumOutputDataConnections() const
{
return m_nOutputConnections;
}
XnBool ClientUSBConnectionFactory::IsInitialized() const
{
return m_bInitialized;
}
XnStatus ClientUSBConnectionFactory::GetControlConnection(ISyncIOConnection*& pConn)
{
if (!m_bInitialized)
{
return XN_STATUS_NOT_INIT;
}
pConn = &m_controlEndpoint;
return XN_STATUS_OK;
}
XnStatus ClientUSBConnectionFactory::CreateOutputDataConnection(XnUInt16 /*nID*/, IOutputConnection*& pConn)
{
//nID is ignored because we only support one output connection in the client
XnStatus nRetVal = XN_STATUS_OK;
if (!m_bInitialized)
{
return XN_STATUS_NOT_INIT;
}
ClientUSBOutDataEndpoint* pUSBOutDataEndpoint = XN_NEW(ClientUSBOutDataEndpoint, XN_USB_EP_ISOCHRONOUS);
XN_VALIDATE_ALLOC_PTR(pUSBOutDataEndpoint);
nRetVal = pUSBOutDataEndpoint->Init(m_hUSBDevice);
if (nRetVal != XN_STATUS_OK)
{
xnLogError(XN_MASK_USB, "Failed to initialize output data endpoint: %s",
xnGetStatusString(nRetVal));
XN_ASSERT(FALSE);
XN_DELETE(pUSBOutDataEndpoint);
return nRetVal;
}
pConn = pUSBOutDataEndpoint;
return XN_STATUS_OK;
}
XnStatus ClientUSBConnectionFactory::CreateInputDataConnection(XnUInt16 nID, IAsyncInputConnection*& pConn)
{
XnStatus nRetVal = XN_STATUS_OK;
if (!m_bInitialized)
{
return XN_STATUS_NOT_INIT;
}
ClientUSBInDataEndpoint* pUSBInDataEndpoint = XN_NEW(ClientUSBInDataEndpoint);
XN_VALIDATE_ALLOC_PTR(pUSBInDataEndpoint);
nRetVal = pUSBInDataEndpoint->Init(m_hUSBDevice, nID);
if (nRetVal != XN_STATUS_OK)
{
xnLogError(XN_MASK_USB, "Failed to initialize input data endpoint %u: %s",
nID, xnGetStatusString(nRetVal));
XN_ASSERT(FALSE);
XN_DELETE(pUSBInDataEndpoint);
return nRetVal;
}
pConn = pUSBInDataEndpoint;
m_dataOpen = TRUE;
return XN_STATUS_OK;
}
XnStatus ClientUSBConnectionFactory::EnumerateConnStrings(XnUInt16 nProductID,
XnConnectionString*& astrConnStrings,
XnUInt32& nCount)
{
XnStatus nRetVal = xnUSBInit();
if (nRetVal == XN_STATUS_USB_ALREADY_INIT)
nRetVal = XN_STATUS_OK;
XN_IS_STATUS_OK_LOG_ERROR("Init usb", nRetVal);
nRetVal = xnUSBEnumerateDevices(XN_VENDOR_ID, nProductID,
const_cast<const XnUSBConnectionString**>(&astrConnStrings), &nCount);
xnUSBShutdown(); //decrease the inner ref-counter
return nRetVal;
}
void ClientUSBConnectionFactory::FreeConnStringsList(XnConnectionString* astrConnStrings)
{
xnUSBFreeDevicesList(astrConnStrings);
}
XnStatus ClientUSBConnectionFactory::SetUsbAltInterface(XnUInt8 interfaceNum)
{
XnStatus nRetVal = XN_STATUS_OK;
if (m_dataOpen)
{
xnLogWarning(XN_MASK_LINK, "Can't set interface once streaming started");
XN_ASSERT(FALSE);
return XN_STATUS_BAD_PARAM;
}
nRetVal = xnUSBSetInterface(m_hUSBDevice, 0, interfaceNum);
XN_IS_STATUS_OK(nRetVal);
m_nAltInterface = interfaceNum;
return (XN_STATUS_OK);
}
XnStatus ClientUSBConnectionFactory::GetUsbAltInterface(XnUInt8* pInterfaceNum) const
{
*pInterfaceNum = m_nAltInterface;
return XN_STATUS_OK;
}
}
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