1 /* 2 * PROJECT: ReactOS PCI Bus Driver 3 * LICENSE: BSD - See COPYING.ARM in the top level directory 4 * FILE: drivers/bus/pci/intrface/agpintrf.c 5 * PURPOSE: AGP Interface 6 * PROGRAMMERS: ReactOS Portable Systems Group 7 */ 8 9 /* INCLUDES *******************************************************************/ 10 11 #include <pci.h> 12 13 #include <ntagp.h> 14 15 #define NDEBUG 16 #include <debug.h> 17 18 /* GLOBALS ********************************************************************/ 19 20 PCI_INTERFACE AgpTargetInterface = 21 { 22 &GUID_AGP_TARGET_BUS_INTERFACE_STANDARD, 23 sizeof(AGP_BUS_INTERFACE_STANDARD), 24 AGP_BUS_INTERFACE_V1, 25 AGP_BUS_INTERFACE_V1, 26 PCI_INTERFACE_PDO, 27 0, 28 PciInterface_AgpTarget, 29 agpintrf_Constructor, 30 agpintrf_Initializer 31 }; 32 33 /* FUNCTIONS ******************************************************************/ 34 35 NTSTATUS 36 NTAPI 37 agpintrf_Initializer(IN PVOID Instance) 38 { 39 UNREFERENCED_PARAMETER(Instance); 40 /* PnP Interfaces don't get Initialized */ 41 ASSERTMSG("PCI agpintrf_Initializer, unexpected call.\n", FALSE); 42 return STATUS_UNSUCCESSFUL; 43 } 44 45 NTSTATUS 46 NTAPI 47 agpintrf_Constructor(IN PVOID DeviceExtension, 48 IN PVOID Instance, 49 IN PVOID InterfaceData, 50 IN USHORT Version, 51 IN USHORT Size, 52 IN PINTERFACE Interface) 53 { 54 PPCI_PDO_EXTENSION PdoExtension = (PPCI_PDO_EXTENSION)DeviceExtension; 55 56 UNREFERENCED_PARAMETER(Instance); 57 UNREFERENCED_PARAMETER(InterfaceData); 58 UNREFERENCED_PARAMETER(Version); 59 UNREFERENCED_PARAMETER(Size); 60 UNREFERENCED_PARAMETER(Interface); 61 62 /* Only AGP bridges are supported (which are PCI-to-PCI Bridge Devices) */ 63 if ((PdoExtension->BaseClass != PCI_CLASS_BRIDGE_DEV) || 64 (PdoExtension->SubClass != PCI_SUBCLASS_BR_PCI_TO_PCI)) 65 { 66 /* Fail any other PDO */ 67 return STATUS_NOT_SUPPORTED; 68 } 69 70 /* Not yet implemented */ 71 UNIMPLEMENTED_DBGBREAK(); 72 return STATUS_NOT_IMPLEMENTED; 73 } 74 75 /* EOF */ 76