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 case VideoPortServicesInt10: 50 if (Interface->Version >= VIDEO_PORT_INT10_INTERFACE_VERSION_1 || 51 Interface->Size >= sizeof(VIDEO_PORT_INT10_INTERFACE)) 52 { 53 VIDEO_PORT_INT10_INTERFACE *Int10Interface = 54 (VIDEO_PORT_INT10_INTERFACE *)Interface; 55 56 Interface->InterfaceReference = IntInterfaceReference; 57 Interface->InterfaceDereference = IntInterfaceDereference; 58 Int10Interface->Int10AllocateBuffer = IntInt10AllocateBuffer; 59 Int10Interface->Int10FreeBuffer = IntInt10FreeBuffer; 60 Int10Interface->Int10ReadMemory = IntInt10ReadMemory; 61 Int10Interface->Int10WriteMemory = IntInt10WriteMemory; 62 Int10Interface->Int10CallBios = IntInt10CallBios; 63 return NO_ERROR; 64 } 65 break; 66 67 case VideoPortServicesAGP: 68 if ((Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_2 && 69 Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE_2)) || 70 (Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1 && 71 Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE))) 72 { 73 if (NT_SUCCESS(IntAgpGetInterface(HwDeviceExtension, Interface))) 74 { 75 return NO_ERROR; 76 } 77 } 78 break; 79 80 case VideoPortServicesI2C: 81 UNIMPLEMENTED; 82 return ERROR_INVALID_FUNCTION; 83 84 case VideoPortServicesHeadless: 85 UNIMPLEMENTED; 86 return ERROR_INVALID_FUNCTION; 87 88 default: 89 break; 90 } 91 92 return ERROR_INVALID_FUNCTION; 93 } 94 95 BOOLEAN NTAPI 96 VideoPortGetAgpServices( 97 IN PVOID HwDeviceExtension, 98 OUT PVIDEO_PORT_AGP_SERVICES AgpServices) 99 { 100 VIDEO_PORT_AGP_INTERFACE Interface; 101 VP_STATUS Status; 102 103 TRACE_(VIDEOPRT, "VideoPortGetAgpServices\n"); 104 105 Interface.Size = sizeof(Interface); 106 Interface.Version = VIDEO_PORT_AGP_INTERFACE_VERSION_1; 107 108 Status = VideoPortQueryServices(HwDeviceExtension, VideoPortServicesAGP, 109 (PINTERFACE)&Interface); 110 if (Status != NO_ERROR) 111 { 112 WARN_(VIDEOPRT, "VideoPortQueryServices() failed!\n"); 113 return FALSE; 114 } 115 116 RtlCopyMemory(AgpServices, &Interface.AgpReservePhysical, sizeof(VIDEO_PORT_AGP_SERVICES)); 117 return TRUE; 118 } 119