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571 lines
18 KiB
C
571 lines
18 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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#include <initguid.h>
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#include <wdmguid.h>
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/* PRIVATE FUNCTIONS **********************************************************/
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NTSTATUS
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IopInitiatePnpIrp(
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PDEVICE_OBJECT DeviceObject,
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PIO_STATUS_BLOCK IoStatusBlock,
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ULONG MinorFunction,
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PIO_STACK_LOCATION Stack OPTIONAL)
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{
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PDEVICE_OBJECT TopDeviceObject;
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PIO_STACK_LOCATION IrpSp;
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NTSTATUS Status;
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KEVENT Event;
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PIRP Irp;
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/* Always call the top of the device stack */
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TopDeviceObject = IoGetAttachedDeviceReference(DeviceObject);
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KeInitializeEvent(
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&Event,
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NotificationEvent,
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FALSE);
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Irp = IoBuildSynchronousFsdRequest(
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IRP_MJ_PNP,
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TopDeviceObject,
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NULL,
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0,
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NULL,
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&Event,
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IoStatusBlock);
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/* PNP IRPs are always initialized with a status code of
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STATUS_NOT_IMPLEMENTED */
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Irp->IoStatus.Status = STATUS_NOT_IMPLEMENTED;
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Irp->IoStatus.Information = 0;
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IrpSp = IoGetNextIrpStackLocation(Irp);
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IrpSp->MinorFunction = MinorFunction;
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if (Stack)
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{
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RtlMoveMemory(
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&IrpSp->Parameters,
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&Stack->Parameters,
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sizeof(Stack->Parameters));
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}
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Status = IoCallDriver(TopDeviceObject, Irp);
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if (Status == STATUS_PENDING)
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{
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KeWaitForSingleObject(
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&Event,
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Executive,
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KernelMode,
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FALSE,
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NULL);
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Status = IoStatusBlock->Status;
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}
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ObDereferenceObject(TopDeviceObject);
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return Status;
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}
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BOOLEAN NTAPI
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IntAgpCommitPhysical(
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IN PVOID HwDeviceExtension,
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IN PVOID PhysicalContext,
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IN ULONG Pages,
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IN ULONG Offset)
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{
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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PAGP_BUS_INTERFACE_STANDARD AgpBusInterface;
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PHYSICAL_ADDRESS MappingAddr = {{0, 0}};
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PVIDEO_PORT_AGP_MAPPING AgpMapping;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpCommitPhysical - PhysicalContext: 0x%x Pages: %d, Offset: 0x%x\n",
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PhysicalContext, Pages, Offset);
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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AgpBusInterface = &DeviceExtension->AgpInterface;
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AgpMapping = (PVIDEO_PORT_AGP_MAPPING)PhysicalContext;
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Status = AgpBusInterface->CommitMemory(AgpBusInterface->AgpContext,
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AgpMapping->MapHandle, Pages, Offset,
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NULL, &MappingAddr);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: AgpBusInterface->CommitMemory failed (Status = 0x%x)\n",
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Status);
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}
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return NT_SUCCESS(Status);
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}
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VOID NTAPI
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IntAgpFreePhysical(
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IN PVOID HwDeviceExtension,
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IN PVOID PhysicalContext,
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IN ULONG Pages,
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IN ULONG Offset)
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{
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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PAGP_BUS_INTERFACE_STANDARD AgpBusInterface;
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PVIDEO_PORT_AGP_MAPPING AgpMapping;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpFreePhysical - PhysicalContext: 0x%x Pages: %d, Offset: 0x%x\n",
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PhysicalContext, Pages, Offset);
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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AgpBusInterface = &DeviceExtension->AgpInterface;
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AgpMapping = (PVIDEO_PORT_AGP_MAPPING)PhysicalContext;
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Status = AgpBusInterface->FreeMemory(AgpBusInterface->AgpContext,
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AgpMapping->MapHandle, Pages, Offset);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: AgpBusInterface->FreeMemory failed (Status = 0x%x)\n",
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Status);
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}
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}
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VOID NTAPI
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IntAgpReleasePhysical(
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IN PVOID HwDeviceExtension,
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IN PVOID PhysicalContext)
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{
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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PAGP_BUS_INTERFACE_STANDARD AgpBusInterface;
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PVIDEO_PORT_AGP_MAPPING AgpMapping;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpReleasePhysical - PhysicalContext: 0x%x\n", PhysicalContext);
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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AgpBusInterface = &DeviceExtension->AgpInterface;
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AgpMapping = (PVIDEO_PORT_AGP_MAPPING)PhysicalContext;
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/* Release memory */
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Status = AgpBusInterface->ReleaseMemory(AgpBusInterface->AgpContext,
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AgpMapping->MapHandle);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: AgpBusInterface->ReleaseMemory failed (Status = 0x%x)\n",
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Status);
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}
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/* Free resources */
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ExFreePool(AgpMapping);
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}
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PHYSICAL_ADDRESS NTAPI
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IntAgpReservePhysical(
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IN PVOID HwDeviceExtension,
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IN ULONG Pages,
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IN VIDEO_PORT_CACHE_TYPE Caching,
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OUT PVOID *PhysicalContext)
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{
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PHYSICAL_ADDRESS ZeroAddress = {{0, 0}};
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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PAGP_BUS_INTERFACE_STANDARD AgpBusInterface;
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MEMORY_CACHING_TYPE MemCachingType;
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PVIDEO_PORT_AGP_MAPPING AgpMapping;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpReservePhysical - Pages: %d, Caching: 0x%x\n", Pages, Caching);
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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AgpBusInterface = &DeviceExtension->AgpInterface;
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/* Translate memory caching type */
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if (Caching == VpNonCached)
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MemCachingType = MmNonCached;
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else if (Caching == VpCached)
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MemCachingType = MmCached;
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else if (Caching == VpWriteCombined)
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MemCachingType = MmWriteCombined;
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else
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{
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WARN_(VIDEOPRT, "Invalid caching type %d!\n", Caching);
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return ZeroAddress;
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}
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/* Allocate an AGP mapping structure */
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AgpMapping = ExAllocatePoolWithTag(PagedPool,
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sizeof(VIDEO_PORT_AGP_MAPPING),
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TAG_VIDEO_PORT);
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if (AgpMapping == NULL)
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{
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WARN_(VIDEOPRT, "Out of memory! Couldn't allocate AGP mapping structure!\n");
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return ZeroAddress;
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}
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RtlZeroMemory(AgpMapping, sizeof(VIDEO_PORT_AGP_MAPPING));
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/* Reserve memory for the AGP bus */
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Status = AgpBusInterface->ReserveMemory(AgpBusInterface->AgpContext,
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Pages,
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MemCachingType,
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&AgpMapping->MapHandle,
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&AgpMapping->PhysicalAddress);
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if (!NT_SUCCESS(Status) || AgpMapping->MapHandle == NULL)
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{
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ExFreePool(AgpMapping);
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WARN_(VIDEOPRT, "Warning: AgpBusInterface->ReserveMemory failed (Status = 0x%x)\n",
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Status);
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return ZeroAddress;
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}
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/* Fill the rest of the AGP mapping */
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AgpMapping->NumberOfPages = Pages;
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*PhysicalContext = (PVOID)AgpMapping;
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return AgpMapping->PhysicalAddress;
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}
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PVOID NTAPI
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IntAgpCommitVirtual(
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IN PVOID HwDeviceExtension,
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IN PVOID VirtualContext,
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IN ULONG Pages,
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IN ULONG Offset)
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{
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PVIDEO_PORT_AGP_VIRTUAL_MAPPING VirtualMapping;
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PVOID BaseAddress = NULL;
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PHYSICAL_ADDRESS PhysicalAddress;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpCommitVirtual - VirtualContext: 0x%x Pages: %d, Offset: 0x%x\n",
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VirtualContext, Pages, Offset);
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VirtualMapping = (PVIDEO_PORT_AGP_VIRTUAL_MAPPING)VirtualContext;
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/* I think the NT API provides no way of reserving a part of the address space
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* and setting it up to map into a specified range of physical memory later.
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* This means that we will have to release some of the reserved virtual memory
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* and map the physical memory into it using MapViewOfSection.
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*
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* - blight (2004-12-21)
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*/
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if (VirtualMapping->ProcessHandle == NULL)
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{
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/* FIXME: not implemented */
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}
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else /* ProcessHandle != NULL */
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{
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/* Release some virtual memory */
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SIZE_T Size = Pages * PAGE_SIZE;
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ULONG OffsetInBytes = Offset * PAGE_SIZE;
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BaseAddress = (PVOID)((ULONG_PTR)VirtualMapping->MappedAddress +
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OffsetInBytes);
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PhysicalAddress = VirtualMapping->AgpMapping->PhysicalAddress;
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PhysicalAddress.QuadPart += OffsetInBytes;
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Status = ZwFreeVirtualMemory(VirtualMapping->ProcessHandle,
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&BaseAddress,
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&Size, MEM_RELEASE);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: ZwFreeVirtualMemory() failed: Status = 0x%x\n", Status);
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return NULL;
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}
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ASSERT(Size == Pages * PAGE_SIZE);
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ASSERT(BaseAddress == (PVOID)((ULONG_PTR)VirtualMapping->MappedAddress +
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OffsetInBytes));
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/* Map the physical memory into the released virtual memory area */
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Status = IntVideoPortMapPhysicalMemory(VirtualMapping->ProcessHandle,
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PhysicalAddress,
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Size,
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PAGE_READWRITE,
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&BaseAddress);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: IntVideoPortMapPhysicalMemory() failed: Status = 0x%x\n", Status);
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/* Reserve the released virtual memory area again */
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Status = ZwAllocateVirtualMemory(VirtualMapping->ProcessHandle,
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&BaseAddress, 0, &Size, MEM_RESERVE,
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PAGE_NOACCESS);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: ZwAllocateVirtualMemory() failed: Status = 0x%x\n", Status);
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/* FIXME: What to do now?? */
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ASSERT(0);
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return NULL;
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}
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ASSERT(Size == Pages * PAGE_SIZE);
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ASSERT(BaseAddress == (PVOID)((ULONG_PTR)VirtualMapping->MappedAddress +
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OffsetInBytes));
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return NULL;
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}
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ASSERT(BaseAddress == (PVOID)((ULONG_PTR)VirtualMapping->MappedAddress +
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OffsetInBytes));
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}
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return BaseAddress;
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}
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VOID NTAPI
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IntAgpFreeVirtual(
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IN PVOID HwDeviceExtension,
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IN PVOID VirtualContext,
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IN ULONG Pages,
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IN ULONG Offset)
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{
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PVIDEO_PORT_AGP_VIRTUAL_MAPPING VirtualMapping;
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PVOID BaseAddress = NULL;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpFreeVirtual - VirtualContext: 0x%x Pages: %d, Offset: 0x%x\n",
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VirtualContext, Pages, Offset);
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VirtualMapping = (PVIDEO_PORT_AGP_VIRTUAL_MAPPING)VirtualContext;
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if (VirtualMapping->ProcessHandle == NULL)
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{
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/* FIXME: not implemented */
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}
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else /* ProcessHandle != NULL */
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{
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/* Unmap the section view */
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SIZE_T Size = Pages * PAGE_SIZE;
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ULONG OffsetInBytes = Offset * PAGE_SIZE;
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BaseAddress = (PVOID)((ULONG_PTR)VirtualMapping->MappedAddress +
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OffsetInBytes);
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Status = ZwUnmapViewOfSection(VirtualMapping->ProcessHandle, BaseAddress);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: ZwUnmapViewOfSection() failed: Status = 0x%x\n", Status);
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/* FIXME: What to do now?? */
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ASSERT(0);
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return;
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}
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/* And reserve the virtual memory area again */
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Status = ZwAllocateVirtualMemory(VirtualMapping->ProcessHandle,
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&BaseAddress, 0, &Size, MEM_RESERVE,
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PAGE_NOACCESS);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: ZwAllocateVirtualMemory() failed: Status = 0x%x\n", Status);
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/* FIXME: What to do now?? */
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ASSERT(0);
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return;
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}
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ASSERT(Size == Pages * PAGE_SIZE);
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ASSERT(BaseAddress == (PVOID)((ULONG_PTR)VirtualMapping->MappedAddress +
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OffsetInBytes));
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}
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}
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VOID NTAPI
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IntAgpReleaseVirtual(
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IN PVOID HwDeviceExtension,
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IN PVOID VirtualContext)
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{
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PVIDEO_PORT_AGP_VIRTUAL_MAPPING VirtualMapping;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpReleaseVirtual - VirtualContext: 0x%x\n", VirtualContext);
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VirtualMapping = (PVIDEO_PORT_AGP_VIRTUAL_MAPPING)VirtualContext;
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/* Release the virtual memory */
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if (VirtualMapping->ProcessHandle == NULL)
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{
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/* FIXME: not implemented */
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}
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else /* ProcessHandle != NULL */
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{
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/* Release the allocated virtual memory */
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SIZE_T Size = VirtualMapping->AgpMapping->NumberOfPages * PAGE_SIZE;
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Status = ZwFreeVirtualMemory(VirtualMapping->ProcessHandle,
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&VirtualMapping->MappedAddress,
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&Size, MEM_RELEASE);
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if (!NT_SUCCESS(Status))
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{
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WARN_(VIDEOPRT, "Warning: ZwFreeVirtualMemory() failed: Status = 0x%x\n", Status);
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}
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}
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/* Free resources */
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ExFreePool(VirtualMapping);
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}
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PVOID NTAPI
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IntAgpReserveVirtual(
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IN PVOID HwDeviceExtension,
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IN HANDLE ProcessHandle,
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IN PVOID PhysicalContext,
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OUT PVOID *VirtualContext)
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{
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PVIDEO_PORT_AGP_MAPPING AgpMapping;
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PVIDEO_PORT_AGP_VIRTUAL_MAPPING VirtualMapping;
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PVOID MappedAddress;
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NTSTATUS Status;
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TRACE_(VIDEOPRT, "AgpReserveVirtual - ProcessHandle: 0x%x PhysicalContext: 0x%x\n",
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ProcessHandle, PhysicalContext);
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AgpMapping = (PVIDEO_PORT_AGP_MAPPING)PhysicalContext;
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/* Allocate an AGP virtual mapping structure */
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VirtualMapping = ExAllocatePoolWithTag(PagedPool,
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sizeof(VIDEO_PORT_AGP_VIRTUAL_MAPPING),
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TAG_VIDEO_PORT);
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if (VirtualMapping == NULL)
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{
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WARN_(VIDEOPRT, "Out of memory! Couldn't allocate AGP virtual mapping structure!\n");
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return NULL;
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}
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RtlZeroMemory(VirtualMapping, sizeof(VIDEO_PORT_AGP_VIRTUAL_MAPPING));
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/* Reserve a virtual memory area for the physical pages. */
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if (ProcessHandle == NULL)
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{
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/* FIXME: What to do in this case? */
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ExFreePool(VirtualMapping);
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return NULL;
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}
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else /* ProcessHandle != NULL */
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{
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/* Reserve memory for usermode */
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SIZE_T Size = AgpMapping->NumberOfPages * PAGE_SIZE;
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MappedAddress = NULL;
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Status = ZwAllocateVirtualMemory(ProcessHandle, &MappedAddress, 0, &Size,
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MEM_RESERVE, PAGE_NOACCESS);
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if (!NT_SUCCESS(Status))
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{
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ExFreePool(VirtualMapping);
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WARN_(VIDEOPRT, "ZwAllocateVirtualMemory() failed: Status = 0x%x\n", Status);
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return NULL;
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}
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}
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/* Fill the AGP virtual mapping */
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VirtualMapping->AgpMapping = AgpMapping;
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VirtualMapping->ProcessHandle = ProcessHandle;
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VirtualMapping->MappedAddress = MappedAddress;
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*VirtualContext = (PVOID)VirtualMapping;
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return MappedAddress;
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}
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BOOLEAN NTAPI
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IntAgpSetRate(
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IN PVOID HwDeviceExtension,
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IN ULONG Rate)
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{
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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PAGP_BUS_INTERFACE_STANDARD AgpBusInterface;
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TRACE_(VIDEOPRT, "AgpSetRate - Rate: %d\n", Rate);
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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AgpBusInterface = &DeviceExtension->AgpInterface;
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return NT_SUCCESS(AgpBusInterface->SetRate(AgpBusInterface->AgpContext, Rate));
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}
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NTSTATUS NTAPI
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IntAgpGetInterface(
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IN PVOID HwDeviceExtension,
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IN OUT PINTERFACE Interface)
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{
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IO_STATUS_BLOCK IoStatusBlock;
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IO_STACK_LOCATION IoStack;
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NTSTATUS Status;
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PVIDEO_PORT_AGP_INTERFACE_2 AgpInterface;
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PVIDEO_PORT_DEVICE_EXTENSION DeviceExtension;
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PAGP_BUS_INTERFACE_STANDARD AgpBusInterface;
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DeviceExtension = VIDEO_PORT_GET_DEVICE_EXTENSION(HwDeviceExtension);
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AgpBusInterface = &DeviceExtension->AgpInterface;
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AgpInterface = (PVIDEO_PORT_AGP_INTERFACE_2)Interface;
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ASSERT(Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_2 ||
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Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1);
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if (Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_2)
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{
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ASSERT(Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE_2));
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}
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else if (Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1)
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{
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ASSERT(Interface->Size >= sizeof(VIDEO_PORT_AGP_INTERFACE));
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}
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if (DeviceExtension->NextDeviceObject == NULL)
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{
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WARN_(VIDEOPRT, "DeviceExtension->NextDeviceObject is NULL!\n");
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return STATUS_UNSUCCESSFUL;
|
|
}
|
|
|
|
/* Query the interface from the AGP bus driver */
|
|
if (DeviceExtension->AgpInterface.Size == 0)
|
|
{
|
|
AgpBusInterface->Size = sizeof(AGP_BUS_INTERFACE_STANDARD);
|
|
if (Interface->Version == VIDEO_PORT_AGP_INTERFACE_VERSION_1)
|
|
AgpBusInterface->Version = AGP_BUS_INTERFACE_V1;
|
|
else /* if (InterfaceVersion == VIDEO_PORT_AGP_INTERFACE_VERSION_2) */
|
|
AgpBusInterface->Version = AGP_BUS_INTERFACE_V2;
|
|
IoStack.Parameters.QueryInterface.Size = AgpBusInterface->Size;
|
|
IoStack.Parameters.QueryInterface.Version = AgpBusInterface->Version;
|
|
IoStack.Parameters.QueryInterface.Interface = (PINTERFACE)AgpBusInterface;
|
|
IoStack.Parameters.QueryInterface.InterfaceType =
|
|
&GUID_AGP_TARGET_BUS_INTERFACE_STANDARD;
|
|
Status = IopInitiatePnpIrp(DeviceExtension->NextDeviceObject,
|
|
&IoStatusBlock, IRP_MN_QUERY_INTERFACE, &IoStack);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
WARN_(VIDEOPRT, "IopInitiatePnpIrp() failed! (Status 0x%x)\n", Status);
|
|
return Status;
|
|
}
|
|
INFO_(VIDEOPRT, "Got AGP driver interface!\n");
|
|
}
|
|
|
|
/* FIXME: Not sure if we should wrap the reference/dereference functions */
|
|
AgpInterface->Context = AgpBusInterface->AgpContext;
|
|
AgpInterface->InterfaceReference = AgpBusInterface->InterfaceReference;
|
|
AgpInterface->InterfaceDereference = AgpBusInterface->InterfaceDereference;
|
|
AgpInterface->AgpReservePhysical = IntAgpReservePhysical;
|
|
AgpInterface->AgpReleasePhysical = IntAgpReleasePhysical;
|
|
AgpInterface->AgpCommitPhysical = IntAgpCommitPhysical;
|
|
AgpInterface->AgpFreePhysical = IntAgpFreePhysical;
|
|
AgpInterface->AgpReserveVirtual = IntAgpReserveVirtual;
|
|
AgpInterface->AgpReleaseVirtual = IntAgpReleaseVirtual;
|
|
AgpInterface->AgpCommitVirtual = IntAgpCommitVirtual;
|
|
AgpInterface->AgpFreeVirtual = IntAgpFreeVirtual;
|
|
AgpInterface->AgpAllocationLimit = 0x1000000; /* FIXME: using 16 MB for now */
|
|
|
|
if (AgpInterface->Version >= VIDEO_PORT_AGP_INTERFACE_VERSION_2)
|
|
{
|
|
AgpInterface->AgpSetRate = IntAgpSetRate;
|
|
}
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|