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119 lines
3.5 KiB
C
119 lines
3.5 KiB
C
/*
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* VideoPort driver
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*
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* Copyright (C) 2002, 2003, 2004 ReactOS Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "videoprt.h"
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#define NDEBUG
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#include <debug.h>
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VOID NTAPI
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IntInterfaceReference(PVOID Context)
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{
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/* Do nothing */
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}
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VOID NTAPI
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IntInterfaceDereference(PVOID Context)
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{
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/* Do nothing */
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}
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VP_STATUS NTAPI
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VideoPortQueryServices(
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IN PVOID HwDeviceExtension,
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IN VIDEO_PORT_SERVICES ServicesType,
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IN OUT PINTERFACE Interface)
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{
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TRACE_(VIDEOPRT, "VideoPortQueryServices - ServicesType: 0x%x\n", ServicesType);
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switch (ServicesType)
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{
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case VideoPortServicesInt10:
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if (Interface->Version >= VIDEO_PORT_INT10_INTERFACE_VERSION_1 ||
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Interface->Size >= sizeof(VIDEO_PORT_INT10_INTERFACE))
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{
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VIDEO_PORT_INT10_INTERFACE *Int10Interface =
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(VIDEO_PORT_INT10_INTERFACE *)Interface;
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Interface->InterfaceReference = IntInterfaceReference;
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Interface->InterfaceDereference = IntInterfaceDereference;
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Int10Interface->Int10AllocateBuffer = IntInt10AllocateBuffer;
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Int10Interface->Int10FreeBuffer = IntInt10FreeBuffer;
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Int10Interface->Int10ReadMemory = IntInt10ReadMemory;
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Int10Interface->Int10WriteMemory = IntInt10WriteMemory;
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Int10Interface->Int10CallBios = IntInt10CallBios;
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return NO_ERROR;
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}
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break;
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case VideoPortServicesAGP:
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if ((Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_2 &&
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Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE_2)) ||
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(Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1 &&
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Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE)))
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{
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if (NT_SUCCESS(IntAgpGetInterface(HwDeviceExtension, Interface)))
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{
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return NO_ERROR;
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}
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}
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break;
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case VideoPortServicesI2C:
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UNIMPLEMENTED;
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return ERROR_INVALID_FUNCTION;
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case VideoPortServicesHeadless:
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UNIMPLEMENTED;
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return ERROR_INVALID_FUNCTION;
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default:
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break;
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}
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return ERROR_INVALID_FUNCTION;
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}
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BOOLEAN NTAPI
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VideoPortGetAgpServices(
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IN PVOID HwDeviceExtension,
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OUT PVIDEO_PORT_AGP_SERVICES AgpServices)
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{
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VIDEO_PORT_AGP_INTERFACE Interface;
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VP_STATUS Status;
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TRACE_(VIDEOPRT, "VideoPortGetAgpServices\n");
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Interface.Size = sizeof(Interface);
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Interface.Version = VIDEO_PORT_AGP_INTERFACE_VERSION_1;
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Status = VideoPortQueryServices(HwDeviceExtension, VideoPortServicesAGP,
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(PINTERFACE)&Interface);
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if (Status != NO_ERROR)
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{
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WARN_(VIDEOPRT, "VideoPortQueryServices() failed!\n");
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return FALSE;
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}
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RtlCopyMemory(AgpServices, &Interface.AgpReservePhysical, sizeof(VIDEO_PORT_AGP_SERVICES));
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return TRUE;
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}
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