reactos/drivers/bus/pcix/intrface/agpintrf.c

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/*
* PROJECT: ReactOS PCI Bus Driver
* LICENSE: BSD - See COPYING.ARM in the top level directory
* FILE: drivers/bus/pci/intrface/agpintrf.c
* PURPOSE: AGP Interface
* PROGRAMMERS: ReactOS Portable Systems Group
*/
/* INCLUDES *******************************************************************/
#include <pci.h>
#include <ntagp.h>
#define NDEBUG
#include <debug.h>
/* GLOBALS ********************************************************************/
PCI_INTERFACE AgpTargetInterface =
{
&GUID_AGP_TARGET_BUS_INTERFACE_STANDARD,
sizeof(AGP_BUS_INTERFACE_STANDARD),
AGP_BUS_INTERFACE_V1,
AGP_BUS_INTERFACE_V1,
PCI_INTERFACE_PDO,
0,
PciInterface_AgpTarget,
agpintrf_Constructor,
agpintrf_Initializer
};
/* FUNCTIONS ******************************************************************/
NTSTATUS
NTAPI
agpintrf_Initializer(IN PVOID Instance)
{
UNREFERENCED_PARAMETER(Instance);
/* PnP Interfaces don't get Initialized */
ASSERTMSG("PCI agpintrf_Initializer, unexpected call.", FALSE);
return STATUS_UNSUCCESSFUL;
}
NTSTATUS
NTAPI
agpintrf_Constructor(IN PVOID DeviceExtension,
IN PVOID Instance,
IN PVOID InterfaceData,
IN USHORT Version,
IN USHORT Size,
IN PINTERFACE Interface)
{
PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)DeviceExtension;
UNREFERENCED_PARAMETER(Instance);
UNREFERENCED_PARAMETER(InterfaceData);
UNREFERENCED_PARAMETER(Version);
UNREFERENCED_PARAMETER(Size);
UNREFERENCED_PARAMETER(Interface);
/* Only AGP bridges are supported (which are PCI-to-PCI Bridge Devices) */
if ((PdoExtension->BaseClass != PCI_CLASS_BRIDGE_DEV) ||
(PdoExtension->SubClass != PCI_SUBCLASS_BR_PCI_TO_PCI))
{
/* Fail any other PDO */
return STATUS_NOT_SUPPORTED;
}
/* Not yet implemented */
UNIMPLEMENTED_DBGBREAK();
return STATUS_NOT_IMPLEMENTED;
}
/* EOF */