mirror of
https://github.com/mpv-player/mpv
synced 2025-01-01 04:36:24 +01:00
Windows XP support
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12058 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
faust3
parent
543c00752d
commit
e89e30c90c
7
libdha/dhahelperwin/MAKEFILE
Normal file
7
libdha/dhahelperwin/MAKEFILE
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@ -0,0 +1,7 @@
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#
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# DO NOT EDIT THIS FILE!!! Edit .\sources. if you want to add a new source
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# file to this component. This file merely indirects to the real make file
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# that is shared by all the driver components of the Windows NT DDK
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#
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!INCLUDE $(NTMAKEENV)\makefile.def
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6
libdha/dhahelperwin/SOURCES
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6
libdha/dhahelperwin/SOURCES
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@ -0,0 +1,6 @@
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TARGETNAME=dhahelper
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TARGETPATH=.
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TARGETTYPE=DRIVER
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NTDEBUG=ntsd
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SOURCES= dhahelper.c
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359
libdha/dhahelperwin/dhahelper.c
Normal file
359
libdha/dhahelperwin/dhahelper.c
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/******************************************************************************
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* dhahelper.c: direct hardware access under Windows NT/2000/XP
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* Copyright (c) 2004 Sascha Sommer <saschasommer@freenet.de>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 2 of the License, or
|
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
|
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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||||
*
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* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
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||||
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*
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*****************************************************************************/
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#include <ntddk.h>
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#include "dhahelper.h"
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#define OutputDebugString DbgPrint
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#define IOPM_SIZE 0x2000
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typedef char IOPM[IOPM_SIZE];
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static IOPM *pIOPM = NULL;
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typedef struct {
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PMDL Mdl;
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PVOID SystemVirtualAddress;
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PVOID UserVirtualAddress;
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ULONG PhysMemSizeInBytes;
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}alloc_priv;
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static alloc_priv* alloclist;
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static unsigned int alloccount=0;
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static NTSTATUS dhahelperdispatch(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp);
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static void dhahelperunload(IN PDRIVER_OBJECT DriverObject);
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static NTSTATUS UnmapPhysicalMemory(PVOID UserVirtualAddress);
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static NTSTATUS MapPhysicalMemoryToLinearSpace(PVOID pPhysAddress,ULONG PhysMemSizeInBytes,PVOID *PhysMemLin);
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void Ke386SetIoAccessMap(int, IOPM *);
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void Ke386QueryIoAccessMap(int, IOPM *);
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void Ke386IoSetAccessProcess(PEPROCESS, int);
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//entry point
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NTSTATUS DriverEntry (IN PDRIVER_OBJECT DriverObject,IN PUNICODE_STRING RegistryPath){
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UNICODE_STRING DeviceNameUnicodeString;
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UNICODE_STRING DeviceLinkUnicodeString;
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NTSTATUS ntStatus;
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PDEVICE_OBJECT DeviceObject = NULL;
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OutputDebugString ("dhahelper: entering DriverEntry");
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RtlInitUnicodeString (&DeviceNameUnicodeString, L"\\Device\\DHAHELPER");
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// Create an EXCLUSIVE device object (only 1 thread at a time
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// can make requests to this device).
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ntStatus = IoCreateDevice(DriverObject,0,&DeviceNameUnicodeString,FILE_DEVICE_DHAHELPER,0,TRUE,&DeviceObject);
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if (NT_SUCCESS(ntStatus)){
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// Create dispatch points for device control, create, close.
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DriverObject->MajorFunction[IRP_MJ_CREATE] =
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DriverObject->MajorFunction[IRP_MJ_CLOSE] =
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DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = dhahelperdispatch;
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DriverObject->DriverUnload = dhahelperunload;
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// Create a symbolic link, e.g. a name that a Win32 app can specify
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// to open the device.
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RtlInitUnicodeString (&DeviceLinkUnicodeString, L"\\DosDevices\\DHAHELPER");
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ntStatus = IoCreateSymbolicLink(&DeviceLinkUnicodeString,&DeviceNameUnicodeString);
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if (!NT_SUCCESS(ntStatus)){
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// Symbolic link creation failed- note this & then delete the
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// device object (it's useless if a Win32 app can't get at it).
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OutputDebugString ("dhahelper: IoCreateSymbolicLink failed");
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IoDeleteDevice (DeviceObject);
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}
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}
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else{
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OutputDebugString ("dhahelper: IoCreateDevice failed");
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}
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OutputDebugString ("dhahelper: leaving DriverEntry");
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return ntStatus;
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}
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// Process the IRPs sent to this device
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static NTSTATUS dhahelperdispatch(IN PDEVICE_OBJECT DeviceObject,IN PIRP Irp){
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PIO_STACK_LOCATION IrpStack;
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ULONG dwInputBufferLength;
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ULONG dwOutputBufferLength;
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ULONG dwIoControlCode;
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PVOID pvIOBuffer;
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NTSTATUS ntStatus;
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dhahelper_t dhahelper_priv;
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OutputDebugString ("dhahelper: entering dhahelperdispatch");
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// Init to default settings
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = 0;
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IrpStack = IoGetCurrentIrpStackLocation(Irp);
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// Get the pointer to the input/output buffer and it's length
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pvIOBuffer = Irp->AssociatedIrp.SystemBuffer;
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dwInputBufferLength = IrpStack->Parameters.DeviceIoControl.InputBufferLength;
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dwOutputBufferLength = IrpStack->Parameters.DeviceIoControl.OutputBufferLength;
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switch (IrpStack->MajorFunction){
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case IRP_MJ_CREATE:
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OutputDebugString("dhahelper: IRP_MJ_CREATE");
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break;
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case IRP_MJ_CLOSE:
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OutputDebugString("dhahelper: IRP_MJ_CLOSE");
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break;
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case IRP_MJ_DEVICE_CONTROL:
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OutputDebugString("dhahelper: IRP_MJ_DEVICE_CONTROL");
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dwIoControlCode = IrpStack->Parameters.DeviceIoControl.IoControlCode;
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switch (dwIoControlCode){
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case IOCTL_DHAHELPER_ENABLEDIRECTIO:
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OutputDebugString("dhahelper: IOCTL_DHAHELPER_ENABLEDIRECTIO");
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pIOPM = MmAllocateNonCachedMemory(sizeof(IOPM));
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if (pIOPM){
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RtlZeroMemory(pIOPM, sizeof(IOPM));
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Ke386IoSetAccessProcess(PsGetCurrentProcess(), 1);
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Ke386SetIoAccessMap(1, pIOPM);
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}
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else Irp->IoStatus.Status = STATUS_INSUFFICIENT_RESOURCES;
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break;
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case IOCTL_DHAHELPER_DISABLEDIRECTIO:
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OutputDebugString("dhahelper: IOCTL_DHAHELPER_DISABLEDIRECTIO");
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if (pIOPM){
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Ke386IoSetAccessProcess(PsGetCurrentProcess(), 0);
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Ke386SetIoAccessMap(1, pIOPM);
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MmFreeNonCachedMemory(pIOPM, sizeof(IOPM));
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pIOPM = NULL;
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}
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break;
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case IOCTL_DHAHELPER_MAPPHYSTOLIN:
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OutputDebugString("dhahelper: IOCTL_DHAHELPER_MAPPHYSTOLIN");
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if (dwInputBufferLength){
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memcpy (&dhahelper_priv, pvIOBuffer, dwInputBufferLength);
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ntStatus = MapPhysicalMemoryToLinearSpace(dhahelper_priv.base,dhahelper_priv.size,&dhahelper_priv.ptr);
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if (NT_SUCCESS(ntStatus)){
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memcpy (pvIOBuffer, &dhahelper_priv, dwInputBufferLength);
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Irp->IoStatus.Information = dwInputBufferLength;
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}
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Irp->IoStatus.Status = ntStatus;
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}
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else Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_DHAHELPER_UNMAPPHYSADDR:
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OutputDebugString("dhahelper: IOCTL_DHAHELPER_UNMAPPHYSADDR");
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if (dwInputBufferLength){
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memcpy (&dhahelper_priv, pvIOBuffer, dwInputBufferLength);
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ntStatus = UnmapPhysicalMemory(dhahelper_priv.ptr);
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Irp->IoStatus.Status = ntStatus;
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}
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else
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Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
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break;
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default:
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OutputDebugString("dhahelper: unknown IRP_MJ_DEVICE_CONTROL");
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Irp->IoStatus.Status = STATUS_INVALID_PARAMETER;
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break;
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}
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break;
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}
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// DON'T get cute and try to use the status field of the irp in the
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// return status. That IRP IS GONE as soon as you call IoCompleteRequest.
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ntStatus = Irp->IoStatus.Status;
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IoCompleteRequest (Irp, IO_NO_INCREMENT);
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// We never have pending operation so always return the status code.
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OutputDebugString("dhahelper: leaving dhahelperdispatch");
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return ntStatus;
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}
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// Delete the associated device and return
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static void dhahelperunload(IN PDRIVER_OBJECT DriverObject){
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UNICODE_STRING DeviceLinkUnicodeString;
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NTSTATUS ntStatus=STATUS_SUCCESS;
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OutputDebugString ("dhahelper: entering dhahelperunload");
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OutputDebugString ("dhahelper: unmapping remaining memory");
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while(alloccount && (ntStatus==STATUS_SUCCESS))ntStatus = UnmapPhysicalMemory(alloclist[alloccount-1].UserVirtualAddress);
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RtlInitUnicodeString (&DeviceLinkUnicodeString, L"\\DosDevices\\DHAHELPER");
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ntStatus = IoDeleteSymbolicLink (&DeviceLinkUnicodeString);
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if (NT_SUCCESS(ntStatus)){
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IoDeleteDevice (DriverObject->DeviceObject);
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}
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else {
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OutputDebugString ("dhahelper: IoDeleteSymbolicLink failed");
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}
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OutputDebugString ("dhahelper: leaving dhahelperunload");
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}
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/************************* memory mapping functions ******************************/
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//unlike the functions of other io helpers these functions allow to map adapter memory on windows xp
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//even if it has alread been mapped by the original driver
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//the technique used is described in
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//http://support.microsoft.com/default.aspx?scid=kb;en-us;q189327
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//furthermore it keeps a list of mapped areas to free them when the driver gets unloaded
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//I'm not sure what the limitations of ZwMapViewOfSection are but mapping 128MB videoram (that is probably already mapped by the gfxcard driver)
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//won't work so it is generally a good idea to map only the memory you really need
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static NTSTATUS MapPhysicalMemoryToLinearSpace(PVOID pPhysAddress,ULONG PhysMemSizeInBytes,PVOID *PhysMemLin){
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alloc_priv* alloclisttmp;
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PMDL Mdl=NULL;
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PVOID SystemVirtualAddress=NULL;
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PVOID UserVirtualAddress=NULL;
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PHYSICAL_ADDRESS pStartPhysAddress;
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OutputDebugString ("dhahelper: entering MapPhysicalMemoryToLinearSpace");
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pStartPhysAddress.QuadPart = (ULONGLONG)pPhysAddress;
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__try {
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SystemVirtualAddress=MmMapIoSpace(pStartPhysAddress,PhysMemSizeInBytes, /*MmWriteCombined*/MmNonCached);
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if(!SystemVirtualAddress){
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OutputDebugString("dhahelper: MmMapIoSpace failed");
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return STATUS_INVALID_PARAMETER;
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}
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OutputDebugString("dhahelper: SystemVirtualAddress 0x%x",SystemVirtualAddress);
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Mdl=IoAllocateMdl(SystemVirtualAddress, PhysMemSizeInBytes, FALSE, FALSE,NULL);
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if(!Mdl){
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OutputDebugString("dhahelper: IoAllocateMdl failed");
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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OutputDebugString("dhahelper: Mdl 0x%x",Mdl);
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MmBuildMdlForNonPagedPool(Mdl);
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UserVirtualAddress = (PVOID)(((ULONG)PAGE_ALIGN(MmMapLockedPages(Mdl,UserMode))) + MmGetMdlByteOffset(Mdl));
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if(!UserVirtualAddress){
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OutputDebugString("dhahelper: MmMapLockedPages failed");
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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OutputDebugString("dhahelper: UserVirtualAddress 0x%x",UserVirtualAddress);
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||||
}__except(EXCEPTION_EXECUTE_HANDLER){
|
||||
NTSTATUS ntStatus;
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ntStatus = GetExceptionCode();
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OutputDebugString("dhahelper: MapPhysicalMemoryToLinearSpace failed due to exception 0x%0x\n", ntStatus);
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return ntStatus;
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||||
}
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OutputDebugString("dhahelper: adding data to internal allocation list");
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alloclisttmp=MmAllocateNonCachedMemory((alloccount+1)*sizeof(alloc_priv));
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||||
|
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if(!alloclisttmp){
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OutputDebugString("dhahelper: not enough memory to create temporary allocation list");
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MmUnmapLockedPages(UserVirtualAddress, Mdl);
|
||||
IoFreeMdl(Mdl);
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
if(alloccount){
|
||||
memcpy(alloclisttmp,alloclist,alloccount * sizeof(alloc_priv));
|
||||
MmFreeNonCachedMemory(alloclist,alloccount*sizeof(alloc_priv));
|
||||
}
|
||||
alloclist=alloclisttmp;
|
||||
alloclist[alloccount].Mdl=Mdl;
|
||||
alloclist[alloccount].SystemVirtualAddress=SystemVirtualAddress;
|
||||
alloclist[alloccount].UserVirtualAddress=UserVirtualAddress;
|
||||
alloclist[alloccount].PhysMemSizeInBytes=PhysMemSizeInBytes;
|
||||
++alloccount;
|
||||
|
||||
*PhysMemLin=UserVirtualAddress;
|
||||
|
||||
OutputDebugString("dhahelper: leaving MapPhysicalMemoryToLinearSpace");
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
static NTSTATUS UnmapPhysicalMemory(PVOID UserVirtualAddress){
|
||||
unsigned int i;
|
||||
unsigned int x=0;
|
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unsigned int alloccounttmp=alloccount;
|
||||
OutputDebugString("dhahelper: entering UnmapPhysicalMemory to unmapp 0x%x",UserVirtualAddress);
|
||||
if(!alloccount){
|
||||
OutputDebugString("dhahelper: UnmapPhysicalMemory: nothing todo -> leaving...");
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
for(i=0;i<alloccount;i++){
|
||||
if(alloclist[i].UserVirtualAddress!=UserVirtualAddress){
|
||||
if(x!=i){
|
||||
alloclist[x].Mdl=alloclist[i].Mdl;
|
||||
alloclist[x].SystemVirtualAddress=alloclist[i].SystemVirtualAddress;
|
||||
alloclist[x].UserVirtualAddress=alloclist[i].UserVirtualAddress;
|
||||
alloclist[x].PhysMemSizeInBytes=alloclist[i].PhysMemSizeInBytes;
|
||||
|
||||
}
|
||||
x++;
|
||||
}
|
||||
else if(alloclist[i].UserVirtualAddress==UserVirtualAddress){
|
||||
if(x==i){
|
||||
__try {
|
||||
MmUnmapLockedPages(alloclist[x].UserVirtualAddress, alloclist[x].Mdl);
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||||
IoFreeMdl(alloclist[x].Mdl);
|
||||
MmUnmapIoSpace(alloclist[x].SystemVirtualAddress,alloclist[x].PhysMemSizeInBytes);
|
||||
}__except(EXCEPTION_EXECUTE_HANDLER){
|
||||
NTSTATUS ntStatus;
|
||||
ntStatus = GetExceptionCode();
|
||||
OutputDebugString("dhahelper: UnmapPhysicalMemory failed due to exception 0x%0x (Mdl 0x%x)\n", ntStatus,alloclist[x].Mdl);
|
||||
return ntStatus;
|
||||
}
|
||||
}
|
||||
alloccounttmp--;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if(alloccounttmp){
|
||||
alloc_priv* alloclisttmp;
|
||||
alloclisttmp=MmAllocateNonCachedMemory(alloccounttmp*sizeof(alloc_priv));
|
||||
if(!alloclisttmp){
|
||||
OutputDebugString("dhahelper: not enough memory to create temporary allocation list");
|
||||
return STATUS_INSUFFICIENT_RESOURCES;
|
||||
}
|
||||
memcpy(alloclisttmp,alloclist,alloccounttmp * sizeof(alloc_priv));
|
||||
MmFreeNonCachedMemory(alloclist,alloccount*sizeof(alloc_priv));
|
||||
alloclist=alloclisttmp;
|
||||
}
|
||||
alloccount=alloccounttmp;
|
||||
|
||||
OutputDebugString("dhahelper: leaving UnmapPhysicalMemory");
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
50
libdha/dhahelperwin/dhahelper.h
Normal file
50
libdha/dhahelperwin/dhahelper.h
Normal file
@ -0,0 +1,50 @@
|
||||
#ifndef _DHAHELPER_H
|
||||
#define _DHAHELPER_H 1
|
||||
|
||||
// Define the various device type values. Note that values used by Microsoft
|
||||
// Corporation are in the range 0-32767, and 32768-65535 are reserved for use
|
||||
// by customers.
|
||||
|
||||
#define FILE_DEVICE_DHAHELPER 0x00008011
|
||||
|
||||
// Macro definition for defining IOCTL and FSCTL function control codes.
|
||||
// Note that function codes 0-2047 are reserved for Microsoft Corporation,
|
||||
// and 2048-4095 are reserved for customers.
|
||||
|
||||
#define DHAHELPER_IOCTL_INDEX 0x810
|
||||
|
||||
#define IOCTL_DHAHELPER_MAPPHYSTOLIN CTL_CODE(FILE_DEVICE_DHAHELPER, \
|
||||
DHAHELPER_IOCTL_INDEX, \
|
||||
METHOD_BUFFERED, \
|
||||
FILE_ANY_ACCESS)
|
||||
|
||||
#define IOCTL_DHAHELPER_UNMAPPHYSADDR CTL_CODE(FILE_DEVICE_DHAHELPER, \
|
||||
DHAHELPER_IOCTL_INDEX + 1, \
|
||||
METHOD_BUFFERED, \
|
||||
FILE_ANY_ACCESS)
|
||||
|
||||
#define IOCTL_DHAHELPER_ENABLEDIRECTIO CTL_CODE(FILE_DEVICE_DHAHELPER, \
|
||||
DHAHELPER_IOCTL_INDEX + 2, \
|
||||
METHOD_BUFFERED, \
|
||||
FILE_ANY_ACCESS)
|
||||
|
||||
#define IOCTL_DHAHELPER_DISABLEDIRECTIO CTL_CODE(FILE_DEVICE_DHAHELPER, \
|
||||
DHAHELPER_IOCTL_INDEX + 3, \
|
||||
METHOD_BUFFERED, \
|
||||
FILE_ANY_ACCESS)
|
||||
|
||||
|
||||
#if !defined(__MINGW32__) && !defined(__CYGWIN__)
|
||||
#pragma pack(1)
|
||||
typedef struct dhahelper_t {
|
||||
#else
|
||||
struct __attribute__((__packed__)) dhahelper_t {
|
||||
#endif
|
||||
unsigned int size;
|
||||
void* base;
|
||||
void* ptr;
|
||||
};
|
||||
|
||||
typedef struct dhahelper_t dhahelper_t;
|
||||
|
||||
#endif
|
||||
53
libdha/dhahelperwin/dhasetup.c
Normal file
53
libdha/dhahelperwin/dhasetup.c
Normal file
@ -0,0 +1,53 @@
|
||||
/*dhahelper setup program (c) 2004 Sascha Sommer*/
|
||||
/*compile with gcc -o dhasetup.exe dhasetup.c */
|
||||
/*LICENSE: GPL */
|
||||
|
||||
#include <windows.h>
|
||||
#include <stdio.h>
|
||||
|
||||
int main(int argc,char* argv[]){
|
||||
SC_HANDLE hSCManager;
|
||||
SC_HANDLE hService;
|
||||
printf("dhasetup (c) 2004 Sascha Sommer\n");
|
||||
if(argc==1){
|
||||
printf("usage:\n");
|
||||
printf("dhasetup install - copys dhahelper.sys from the current dir to windows/system32/drivers and configures it to start at system start\n");
|
||||
printf("dhasetup remove - removes the dhahelper util\n");
|
||||
return 0;
|
||||
}
|
||||
hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS);
|
||||
|
||||
if(!strcmp(argv[1],"install")){
|
||||
printf("installing dhahelper\n");
|
||||
CopyFile("dhahelper.sys","c:\\windows\\System32\\drivers\\dhahelper.sys",FALSE);
|
||||
// Install the driver
|
||||
hService = CreateService(hSCManager,
|
||||
"DHAHELPER",
|
||||
"DHAHELPER",
|
||||
SERVICE_ALL_ACCESS,
|
||||
SERVICE_KERNEL_DRIVER,
|
||||
SERVICE_SYSTEM_START,
|
||||
SERVICE_ERROR_NORMAL,
|
||||
"c:\\windows\\System32\\drivers\\dhahelper.sys",
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL);
|
||||
}
|
||||
else if(!strcmp(argv[1],"remove")){
|
||||
SERVICE_STATUS ServiceStatus;
|
||||
printf("removing dhahelper\n");
|
||||
hService = OpenService(hSCManager, "DHAHELPER", SERVICE_ALL_ACCESS);
|
||||
ControlService(hService, SERVICE_CONTROL_STOP, &ServiceStatus);
|
||||
DeleteService(hService);
|
||||
DeleteFile("c:\\windows\\System32\\drivers\\dhahelper.sys");
|
||||
}
|
||||
else {
|
||||
printf("unknown parameter: %s\n",argv[1]);
|
||||
}
|
||||
CloseServiceHandle(hService);
|
||||
CloseServiceHandle(hSCManager);
|
||||
printf("please reboot to let the changes take effect\n");
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user