ULONG
NTAPI
VmxReadUlong(IN PHW_DEVICE_EXTENSION DeviceExtension,
IN ULONG Index)
{
/* Program the index first, then read the value */
VideoPortWritePortUlong(DeviceExtension->IndexPort, Index);
return VideoPortReadPortUlong(DeviceExtension->ValuePort);
}
/* Checks if we have a device supported by our driver and initialize
* our driver/card specific information.
* In particular we obtain VM monitors configuration and configure related structures.
*/
static VP_STATUS
VBoxDrvFindAdapter(IN PVOID HwDeviceExtension, IN PVOID HwContext, IN PWSTR ArgumentString,
IN OUT PVIDEO_PORT_CONFIG_INFO ConfigInfo, OUT PUCHAR Again)
{
RT_NOREF(HwContext, ArgumentString, Again);
PVBOXMP_DEVEXT pExt = (PVBOXMP_DEVEXT) HwDeviceExtension;
VP_STATUS rc;
USHORT DispiId;
ULONG cbVRAM = VBE_DISPI_TOTAL_VIDEO_MEMORY_BYTES;
PHYSICAL_ADDRESS phVRAM = {0};
ULONG ulApertureSize = 0;
PAGED_CODE();
LOGF_ENTER();
/* Init video port api */
VBoxSetupVideoPortAPI(pExt, ConfigInfo);
VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID2);
DispiId = VideoPortReadPortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA);
if (DispiId != VBE_DISPI_ID2)
{
WARN(("VBE card not found, returning ERROR_DEV_NOT_EXIST"));
return ERROR_DEV_NOT_EXIST;
}
LOG(("found the VBE card"));
/*
* Query the adapter's memory size. It's a bit of a hack, we just read
* an ULONG from the data port without setting an index before.
*/
cbVRAM = VideoPortReadPortUlong((PULONG)VBE_DISPI_IOPORT_DATA);
/* Write hw information to registry, so that it's visible in windows property dialog */
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.ChipType",
g_wszVBoxChipType, sizeof(g_wszVBoxChipType));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.DacType",
g_wszVBoxDACType, sizeof(g_wszVBoxDACType));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.MemorySize",
&cbVRAM, sizeof(ULONG));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.AdapterString",
g_wszVBoxAdapterString, sizeof(g_wszVBoxAdapterString));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.BiosString",
g_wszVBoxBiosString, sizeof(g_wszVBoxBiosString));
VBOXMP_WARN_VPS(rc);
/* Call VideoPortGetAccessRanges to ensure interrupt info in ConfigInfo gets set up
* and to get LFB aperture data.
*/
{
VIDEO_ACCESS_RANGE tmpRanges[4];
ULONG slot = 0;
VideoPortZeroMemory(tmpRanges, sizeof(tmpRanges));
if (VBoxQueryWinVersion(NULL) == WINVERSION_NT4)
{
/* NT crashes if either of 'vendorId, 'deviceId' or 'slot' parameters is NULL,
* and needs PCI ids for a successful VideoPortGetAccessRanges call.
*/
ULONG vendorId = 0x80EE;
ULONG deviceId = 0xBEEF;
rc = VideoPortGetAccessRanges(pExt, 0, NULL, RT_ELEMENTS(tmpRanges), tmpRanges,
&vendorId, &deviceId, &slot);
}
else
{
rc = VideoPortGetAccessRanges(pExt, 0, NULL, RT_ELEMENTS(tmpRanges), tmpRanges, NULL, NULL, &slot);
}
VBOXMP_WARN_VPS(rc);
if (rc != NO_ERROR) {
return rc;
}
/* The first non-IO range is the framebuffer. We require that information. */
for (int iRange = 0; iRange < RT_ELEMENTS(tmpRanges); ++iRange)
{
if (!tmpRanges[iRange].RangeInIoSpace)
{
phVRAM = tmpRanges[iRange].RangeStart;
ulApertureSize = tmpRanges[iRange].RangeLength;
break;
}
}
}
/* Initialize VBoxGuest library, which is used for requests which go through VMMDev. */
rc = VbglR0InitClient();
VBOXMP_WARN_VPS(rc);
/* Preinitialize the primary extension. */
pExt->pNext = NULL;
pExt->pPrimary = pExt;
pExt->iDevice = 0;
pExt->ulFrameBufferOffset = 0;
pExt->ulFrameBufferSize = 0;
pExt->u.primary.ulVbvaEnabled = 0;
VideoPortZeroMemory(&pExt->areaDisplay, sizeof(HGSMIAREA));
/* Guest supports only HGSMI, the old VBVA via VMMDev is not supported. Old
* code will be ifdef'ed and later removed.
* The host will however support both old and new interface to keep compatibility
* with old guest additions.
*/
VBoxSetupDisplaysHGSMI(&pExt->u.primary.commonInfo, phVRAM, ulApertureSize, cbVRAM, 0);
/* Check if the chip restricts horizontal resolution or not.
* Must be done after VBoxSetupDisplaysHGSMI, because it initializes the common structure.
*/
VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID_ANYX);
DispiId = VideoPortReadPortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA);
if (DispiId == VBE_DISPI_ID_ANYX)
VBoxCommonFromDeviceExt(pExt)->fAnyX = TRUE;
else
VBoxCommonFromDeviceExt(pExt)->fAnyX = FALSE;
if (pExt->u.primary.commonInfo.bHGSMI)
{
LOGREL(("using HGSMI"));
VBoxCreateDisplays(pExt, ConfigInfo);
}
/** @todo pretend success to make the driver work. */
rc = NO_ERROR;
LOGF_LEAVE();
VBOXMP_WARN_VPS(rc);
return rc;
}
/* Checks if we have a device supported by our driver and initialize
* our driver/card specific information.
* In particular we obtain VM monitors configuration and configure related structures.
*/
static VP_STATUS
VBoxDrvFindAdapter(IN PVOID HwDeviceExtension, IN PVOID HwContext, IN PWSTR ArgumentString,
IN OUT PVIDEO_PORT_CONFIG_INFO ConfigInfo, OUT PUCHAR Again)
{
PVBOXMP_DEVEXT pExt = (PVBOXMP_DEVEXT) HwDeviceExtension;
VP_STATUS rc;
USHORT DispiId;
ULONG AdapterMemorySize = VBE_DISPI_TOTAL_VIDEO_MEMORY_BYTES;
PAGED_CODE();
LOGF_ENTER();
/* Init video port api */
VBoxSetupVideoPortAPI(pExt, ConfigInfo);
VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_INDEX, VBE_DISPI_INDEX_ID);
VideoPortWritePortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA, VBE_DISPI_ID2);
DispiId = VideoPortReadPortUshort((PUSHORT)VBE_DISPI_IOPORT_DATA);
if (DispiId != VBE_DISPI_ID2)
{
WARN(("VBE card not found, returning ERROR_DEV_NOT_EXIST"));
return ERROR_DEV_NOT_EXIST;
}
LOG(("found the VBE card"));
/*
* Query the adapter's memory size. It's a bit of a hack, we just read
* an ULONG from the data port without setting an index before.
*/
AdapterMemorySize = VideoPortReadPortUlong((PULONG)VBE_DISPI_IOPORT_DATA);
/* Write hw information to registry, so that it's visible in windows property dialog */
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.ChipType",
VBoxChipType, sizeof(VBoxChipType));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.DacType",
VBoxDACType, sizeof(VBoxDACType));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.MemorySize",
&AdapterMemorySize, sizeof(ULONG));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.AdapterString",
VBoxAdapterString, sizeof(VBoxAdapterString));
VBOXMP_WARN_VPS(rc);
rc = VideoPortSetRegistryParameters(pExt, L"HardwareInformation.BiosString",
VBoxBiosString, sizeof(VBoxBiosString));
VBOXMP_WARN_VPS(rc);
/* Call VideoPortGetAccessRanges to ensure interrupt info in ConfigInfo gets set up */
{
VIDEO_ACCESS_RANGE tmpRanges[4];
ULONG slot = 0;
VideoPortZeroMemory(tmpRanges, sizeof(tmpRanges));
if (VBoxQueryWinVersion() == WINNT4)
{
/* NT crashes if either of 'vendorId, 'deviceId' or 'slot' parameters is NULL,
* and needs PCI ids for a successful VideoPortGetAccessRanges call.
*/
ULONG vendorId = 0x80EE;
ULONG deviceId = 0xBEEF;
rc = VideoPortGetAccessRanges(pExt, 0, NULL, RT_ELEMENTS(tmpRanges), tmpRanges,
&vendorId, &deviceId, &slot);
}
else
{
rc = VideoPortGetAccessRanges(pExt, 0, NULL, RT_ELEMENTS(tmpRanges), tmpRanges, NULL, NULL, &slot);
}
VBOXMP_WARN_VPS(rc);
}
/* Initialize VBoxGuest library, which is used for requests which go through VMMDev. */
rc = VbglInit();
VBOXMP_WARN_VPS(rc);
/* Preinitialize the primary extension. */
pExt->pNext = NULL;
pExt->pPrimary = pExt;
pExt->iDevice = 0;
pExt->ulFrameBufferOffset = 0;
pExt->ulFrameBufferSize = 0;
pExt->u.primary.ulVbvaEnabled = 0;
VideoPortZeroMemory(&pExt->areaDisplay, sizeof(HGSMIAREA));
/* Guest supports only HGSMI, the old VBVA via VMMDev is not supported. Old
* code will be ifdef'ed and later removed.
* The host will however support both old and new interface to keep compatibility
* with old guest additions.
*/
VBoxSetupDisplaysHGSMI(&pExt->u.primary.commonInfo, AdapterMemorySize, 0);
if (pExt->u.primary.commonInfo.bHGSMI)
{
LOGREL(("using HGSMI"));
VBoxCreateDisplays(pExt, ConfigInfo);
}
/** @todo pretend success to make the driver work. */
rc = NO_ERROR;
LOGF_LEAVE();
VBOXMP_WARN_VPS(rc);
return rc;
}