DECLVBGL(int) VbglR0CrCtlCreate(VBGLCRCTLHANDLE *phCtl)
{
int rc;
if (phCtl)
{
struct VBGLHGCMHANDLEDATA *pHandleData = vbglHGCMHandleAlloc();
if (pHandleData)
{
rc = vbglDriverOpen(&pHandleData->driver);
if (RT_SUCCESS(rc))
{
*phCtl = pHandleData;
return VINF_SUCCESS;
}
vbglHGCMHandleFree(pHandleData);
}
else
rc = VERR_NO_MEMORY;
*phCtl = NULL;
}
else
rc = VERR_INVALID_PARAMETER;
return rc;
}
DECLVBGL(int) VbglHGCMConnect (VBGLHGCMHANDLE *pHandle, VBoxGuestHGCMConnectInfo *pData)
{
int rc;
struct VBGLHGCMHANDLEDATA *pHandleData;
if (!pHandle || !pData)
return VERR_INVALID_PARAMETER;
pHandleData = vbglHGCMHandleAlloc();
if (!pHandleData)
rc = VERR_NO_MEMORY;
else
{
rc = vbglDriverOpen (&pHandleData->driver);
if (RT_SUCCESS(rc))
{
rc = vbglDriverIOCtl (&pHandleData->driver, VBOXGUEST_IOCTL_HGCM_CONNECT, pData, sizeof (*pData));
if (RT_SUCCESS(rc))
rc = pData->result;
if (RT_SUCCESS(rc))
{
*pHandle = pHandleData;
return rc;
}
vbglDriverClose (&pHandleData->driver);
}
vbglHGCMHandleFree (pHandleData);
}
return rc;
}
DECLVBGL(int) vboxCrCtlCreate(HVBOXCRCTL *phCtl)
{
int rc;
struct VBGLHGCMHANDLEDATA *pHandleData;
if (!phCtl)
return VERR_INVALID_PARAMETER;
pHandleData = vbglHGCMHandleAlloc ();
rc = VINF_SUCCESS;
if (!pHandleData)
{
rc = VERR_NO_MEMORY;
}
else
{
rc = vbglDriverOpen (&pHandleData->driver);
if (RT_SUCCESS(rc))
{
*phCtl = pHandleData;
return VINF_SUCCESS;
}
vbglHGCMHandleFree (pHandleData);
}
*phCtl = NULL;
return rc;
}
/**
* The guest library uses lazy initialization for VMMDev port and memory,
* because these values are provided by the VBoxGuest driver and it might
* be loaded later than other drivers.
*
* The VbglEnter checks the current library status, tries to retrieve these
* values and fails if they are unavailable.
*
*/
static void vbglQueryDriverInfo (void)
{
int rc = VINF_SUCCESS;
rc = RTSemMutexRequest(g_vbgldata.mutexDriverInit, RT_INDEFINITE_WAIT);
if (RT_FAILURE(rc))
return;
if (g_vbgldata.status == VbglStatusReady)
{
RTSemMutexRelease(g_vbgldata.mutexDriverInit);
return;
}
rc = vbglDriverOpen(&g_vbgldata.driver);
if (RT_SUCCESS(rc))
{
/*
* Try query the port info.
*/
VBoxGuestPortInfo port;
rc = vbglDriverIOCtl (&g_vbgldata.driver,
VBOXGUEST_IOCTL_GETVMMDEVPORT, &port,
sizeof (port));
if (RT_SUCCESS (rc))
{
dprintf (("port = 0x%04X, mem = %p\n", port.portAddress, port.pVMMDevMemory));
g_vbgldata.portVMMDev = (RTIOPORT)port.portAddress;
g_vbgldata.pVMMDevMemory = port.pVMMDevMemory;
g_vbgldata.status = VbglStatusReady;
vbglR0QueryHostVersion();
}
}
RTSemMutexRelease(g_vbgldata.mutexDriverInit);
dprintf (("vbglQueryDriverInfo rc = %d\n", rc));
}
