1 /* 2 * VideoPort driver 3 * 4 * Copyright (C) 2002, 2003, 2004 ReactOS Team 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 * 20 */ 21 22 #include "videoprt.h" 23 24 #define NDEBUG 25 #include <debug.h> 26 27 VOID NTAPI 28 IntInterfaceReference(PVOID Context) 29 { 30 /* Do nothing */ 31 } 32 33 VOID NTAPI 34 IntInterfaceDereference(PVOID Context) 35 { 36 /* Do nothing */ 37 } 38 39 VP_STATUS NTAPI 40 VideoPortQueryServices( 41 IN PVOID HwDeviceExtension, 42 IN VIDEO_PORT_SERVICES ServicesType, 43 IN OUT PINTERFACE Interface) 44 { 45 TRACE_(VIDEOPRT, "VideoPortQueryServices - ServicesType: 0x%x\n", ServicesType); 46 47 switch (ServicesType) 48 { 49 #if defined(_M_IX86) 50 case VideoPortServicesInt10: 51 if (Interface->Version >= VIDEO_PORT_INT10_INTERFACE_VERSION_1 || 52 Interface->Size >= sizeof(VIDEO_PORT_INT10_INTERFACE)) 53 { 54 VIDEO_PORT_INT10_INTERFACE *Int10Interface = 55 (VIDEO_PORT_INT10_INTERFACE *)Interface; 56 57 Interface->InterfaceReference = IntInterfaceReference; 58 Interface->InterfaceDereference = IntInterfaceDereference; 59 Int10Interface->Int10AllocateBuffer = IntInt10AllocateBuffer; 60 Int10Interface->Int10FreeBuffer = IntInt10FreeBuffer; 61 Int10Interface->Int10ReadMemory = IntInt10ReadMemory; 62 Int10Interface->Int10WriteMemory = IntInt10WriteMemory; 63 Int10Interface->Int10CallBios = IntInt10CallBios; 64 return NO_ERROR; 65 } 66 break; 67 #endif 68 case VideoPortServicesAGP: 69 if ((Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_2 && 70 Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE_2)) || 71 (Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1 && 72 Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE))) 73 { 74 if (NT_SUCCESS(IntAgpGetInterface(HwDeviceExtension, Interface))) 75 { 76 return NO_ERROR; 77 } 78 } 79 break; 80 81 case VideoPortServicesI2C: 82 UNIMPLEMENTED; 83 return ERROR_INVALID_FUNCTION; 84 85 case VideoPortServicesHeadless: 86 UNIMPLEMENTED; 87 return ERROR_INVALID_FUNCTION; 88 89 default: 90 break; 91 } 92 93 return ERROR_INVALID_FUNCTION; 94 } 95 96 BOOLEAN NTAPI 97 VideoPortGetAgpServices( 98 IN PVOID HwDeviceExtension, 99 OUT PVIDEO_PORT_AGP_SERVICES AgpServices) 100 { 101 VIDEO_PORT_AGP_INTERFACE Interface; 102 VP_STATUS Status; 103 104 TRACE_(VIDEOPRT, "VideoPortGetAgpServices\n"); 105 106 Interface.Size = sizeof(Interface); 107 Interface.Version = VIDEO_PORT_AGP_INTERFACE_VERSION_1; 108 109 Status = VideoPortQueryServices(HwDeviceExtension, VideoPortServicesAGP, 110 (PINTERFACE)&Interface); 111 if (Status != NO_ERROR) 112 { 113 WARN_(VIDEOPRT, "VideoPortQueryServices() failed!\n"); 114 return FALSE; 115 } 116 117 RtlCopyMemory(AgpServices, &Interface.AgpReservePhysical, sizeof(VIDEO_PORT_AGP_SERVICES)); 118 return TRUE; 119 } 120