LRESULT CALLBACK DevDetectWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_DEVICECHANGE:
{
PDEV_BROADCAST_HDR pBroadcastHdr = (PDEV_BROADCAST_HDR)lParam;
PDEV_BROADCAST_DEVICEINTERFACE pDevIF = (PDEV_BROADCAST_DEVICEINTERFACE)pBroadcastHdr;
if(pBroadcastHdr)
{
DWORD nEventType = (DWORD)wParam;
if (pBroadcastHdr->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
{
_strlwr(pDevIF->dbcc_name);
XnUSBEventArgs args;
args.strDevicePath = pDevIF->dbcc_name;
switch (nEventType)
{
case DBT_DEVICEARRIVAL:
args.eventType = XN_USB_EVENT_DEVICE_CONNECT;
break;
case DBT_DEVICEREMOVECOMPLETE:
args.eventType = XN_USB_EVENT_DEVICE_DISCONNECT;
break;
default:
return 0;
}
for (XnUSBEventCallbackList::Iterator it = g_connectivityEvent.Begin(); it != g_connectivityEvent.End(); ++it)
{
XnUSBEventCallback* pCallback = *it;
if (strstr(args.strDevicePath, pCallback->strVidPid) != NULL)
{
pCallback->pFunc(&args, pCallback->pCookie);
}
}
}
}
}
break;
default:
return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}
void xnUSBDeviceDisconnected(struct udev_device *dev)
{
// find dev in the connected devices' list
XnUSBConnectedDevice *pConnected = NULL;
for (XnUSBConnectedDeviceList::Iterator it = g_connectedDevices.Begin(); it != g_connectedDevices.End(); ++it)
{
if (!xnOSStrCmp(((XnUSBConnectedDevice *)*it)->strNode, udev_device_get_devnode(dev)))
{
pConnected = *it;
break;
}
}
if(!pConnected)
{
// got disconnection of an unknown device. not good.
xnLogWarning(XN_MASK_USB, "Got device disconnection event - for an unknown device!");
return;
}
// notify the proper events of the disconnection
for (XnUSBEventCallbackList::Iterator it = g_connectivityEvent.Begin(); it != g_connectivityEvent.End(); ++it)
{
XnUSBEventCallback* pCallback = *it;
if(pCallback->nVendorID == pConnected->nVendorID && pCallback->nProductID == pConnected->nProductID)
{
XnUSBEventArgs args;
args.strDevicePath = pConnected->strDevicePath;
args.eventType = XN_USB_EVENT_DEVICE_DISCONNECT;
pCallback->pFunc(&args, pCallback->pCookie);
}
}
// remove the device from connectedDevices List
g_connectedDevices.Remove(pConnected);
XN_DELETE(pConnected);
}
void xnUSBDeviceConnected(struct udev_device *dev)
{
XnUSBConnectedDevice *pConnected;
pConnected = XN_NEW(XnUSBConnectedDevice);
pConnected->nVendorID = strtoul(udev_device_get_sysattr_value(dev,"idVendor"), NULL, 16);
pConnected->nProductID = strtoul(udev_device_get_sysattr_value(dev,"idProduct"), NULL, 16);
pConnected->nBusNum = strtoul(udev_device_get_sysattr_value(dev,"busnum"), NULL, 10);
pConnected->nDevNum = strtoul(udev_device_get_sysattr_value(dev,"devnum"), NULL, 10);
// copy the device node path aside, to be used upon removal
xnOSStrCopy(pConnected->strNode, udev_device_get_devnode(dev), XN_FILE_MAX_PATH);
// generate our unique URI
snprintf(pConnected->strDevicePath, XN_FILE_MAX_PATH,
"%04hx/%04hx@%hhu/%hhu",
pConnected->nVendorID,
pConnected->nProductID,
pConnected->nBusNum,
pConnected->nDevNum);
// add the device to the connectedDevices List
g_connectedDevices.AddLast(pConnected);
// notify the proper events of the connection
for (XnUSBEventCallbackList::Iterator it = g_connectivityEvent.Begin(); it != g_connectivityEvent.End(); ++it)
{
XnUSBEventCallback* pCallback = *it;
if(pCallback->nVendorID == pConnected->nVendorID && pCallback->nProductID == pConnected->nProductID)
{
XnUSBEventArgs args;
args.strDevicePath = pConnected->strDevicePath;
args.eventType = XN_USB_EVENT_DEVICE_CONNECT;
pCallback->pFunc(&args, pCallback->pCookie);
}
}
}