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https://github.com/reactos/reactos.git
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Pass pointer to CSRSS process on first create request.
svn path=/trunk/; revision=3079
This commit is contained in:
Eric Kohl
parent
69c0982e64
commit
01b92c6de5
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@ -1,4 +1,4 @@
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/* $Id: vidport.c,v 1.22 2002/02/12 12:00:28 jfilby Exp $
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/* $Id: vidport.c,v 1.23 2002/06/14 14:22:22 ekohl Exp $
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*
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* VideoPort driver
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* Written by Rex Jolliff
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@ -11,7 +11,10 @@
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#include "vidport.h"
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#define UNIMPLEMENTED do {DbgPrint("%s:%d: Function not implemented", __FILE__, __LINE__); for(;;);} while (0)
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#define NDEBUG
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#include <debug.h>
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//#define UNIMPLEMENTED do {DbgPrint("%s:%d: Function not implemented", __FILE__, __LINE__); for(;;);} while (0)
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#define VERSION "0.0.0"
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@ -19,8 +22,9 @@ static VOID STDCALL VidStartIo(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp);
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static NTSTATUS STDCALL VidDispatchOpenClose(IN PDEVICE_OBJECT pDO, IN PIRP Irp);
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static NTSTATUS STDCALL VidDispatchDeviceControl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp);
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static HANDLE CsrssHandle;
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static struct _EPROCESS* Csrss;
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static BOOLEAN CsrssInitialized = FALSE;
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static HANDLE CsrssHandle = 0;
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static struct _EPROCESS* Csrss = NULL;
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PBYTE ReturnCsrssAddress(void)
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{
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@ -46,11 +50,11 @@ PBYTE ReturnCsrssAddress(void)
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// RETURNS:
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// NTSTATUS
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STDCALL NTSTATUS
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DriverEntry(IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath)
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STDCALL NTSTATUS
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DriverEntry(IN PDRIVER_OBJECT DriverObject,
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IN PUNICODE_STRING RegistryPath)
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{
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return STATUS_SUCCESS;
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return(STATUS_SUCCESS);
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}
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VOID
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@ -170,8 +174,7 @@ VideoPortGetRegistryParameters(IN PVOID HwDeviceExtension,
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UNIMPLEMENTED;
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}
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ULONG
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STDCALL
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ULONG STDCALL
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VideoPortInitialize(IN PVOID Context1,
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IN PVOID Context2,
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IN PVIDEO_HW_INITIALIZATION_DATA HwInitializationData,
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@ -201,15 +204,15 @@ VideoPortInitialize(IN PVOID Context1,
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RtlInitUnicodeString(&DeviceName, DeviceBuffer);
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/* Create the device */
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Status = IoCreateDevice(MPDriverObject,
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Status = IoCreateDevice(MPDriverObject,
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HwInitializationData->HwDeviceExtensionSize +
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sizeof(VIDEOPORT_EXTENSION_DATA),
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&DeviceName,
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FILE_DEVICE_VIDEO,
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0,
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TRUE,
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&DeviceName,
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FILE_DEVICE_VIDEO,
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0,
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TRUE,
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&MPDeviceObject);
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if (!NT_SUCCESS(Status))
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if (!NT_SUCCESS(Status))
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{
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DbgPrint("IoCreateDevice call failed\n",0);
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return Status;
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@ -259,6 +262,7 @@ VideoPortInitialize(IN PVOID Context1,
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!(ConfigInfo.BusInterruptLevel == 0 &&
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ConfigInfo.BusInterruptVector == 0))
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{
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#if 0
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ExtensionData->IRQL = ConfigInfo.BusInterruptLevel;
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ExtensionData->InterruptLevel =
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HalGetInterruptVector(ConfigInfo.AdapterInterfaceType,
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@ -287,39 +291,12 @@ VideoPortInitialize(IN PVOID Context1,
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return Status;
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}
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#endif
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}
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DeviceNumber++;
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}
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while (Again);
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/* Find a process handle for csrss */
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Cid.UniqueProcess = (HANDLE)3;
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Cid.UniqueThread = 0;
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Status = ZwOpenProcess(&CsrssHandle,
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PROCESS_ALL_ACCESS,
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NULL,
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&Cid);
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if (!NT_SUCCESS(Status))
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{
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DbgPrint("VIDPORT: Failed to open csrss\n");
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Csrss = NULL;
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}
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else
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{
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Status = ObReferenceObjectByHandle(CsrssHandle,
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PROCESS_ALL_ACCESS,
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NULL,
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KernelMode,
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(PVOID*)&Csrss,
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NULL);
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if (!NT_SUCCESS(Status))
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{
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DbgPrint("VIDPORT: Failed to reference csrss handle\n");
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Csrss = NULL;
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}
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}
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/* FIXME: initialize timer routine for MP Driver */
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if (HwInitializationData->HwTimer != NULL)
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{
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@ -340,7 +317,7 @@ VideoPortInitialize(IN PVOID Context1,
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return Status;
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}
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}
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return STATUS_SUCCESS;
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}
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@ -350,9 +327,9 @@ VideoPortInt10(IN PVOID HwDeviceExtension,
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{
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KV86M_REGISTERS Regs;
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NTSTATUS Status;
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KeAttachProcess(Csrss);
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memset(&Regs, 0, sizeof(Regs));
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Regs.Eax = BiosArguments->Eax;
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Regs.Ebx = BiosArguments->Ebx;
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@ -690,28 +667,25 @@ VideoPortWriteRegisterBufferUchar(IN PUCHAR Register,
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WRITE_REGISTER_BUFFER_UCHAR(Register, Buffer, Count);
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}
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VOID
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STDCALL
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VideoPortWriteRegisterBufferUshort(IN PUSHORT Register,
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IN PUSHORT Buffer,
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VOID STDCALL
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VideoPortWriteRegisterBufferUshort(IN PUSHORT Register,
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IN PUSHORT Buffer,
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IN ULONG Count)
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{
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WRITE_REGISTER_BUFFER_USHORT(Register, Buffer, Count);
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}
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VOID
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STDCALL
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VideoPortWriteRegisterBufferUlong(IN PULONG Register,
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IN PULONG Buffer,
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VOID STDCALL
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VideoPortWriteRegisterBufferUlong(IN PULONG Register,
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IN PULONG Buffer,
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IN ULONG Count)
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{
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WRITE_REGISTER_BUFFER_ULONG(Register, Buffer, Count);
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}
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VOID
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STDCALL
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VideoPortZeroDeviceMemory(OUT PVOID Destination,
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IN ULONG Length)
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VOID STDCALL
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VideoPortZeroDeviceMemory(OUT PVOID Destination,
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IN ULONG Length)
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{
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UNIMPLEMENTED;
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}
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@ -734,11 +708,25 @@ VideoPortZeroDeviceMemory(OUT PVOID Destination,
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// NTSTATUS
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//
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static NTSTATUS
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STDCALL
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VidDispatchOpenClose(IN PDEVICE_OBJECT pDO,
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IN PIRP Irp)
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static NTSTATUS STDCALL
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VidDispatchOpenClose(IN PDEVICE_OBJECT pDO,
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IN PIRP Irp)
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{
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PIO_STACK_LOCATION IrpStack;
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DPRINT("VidDispatchOpenClose() called\n");
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IrpStack = IoGetCurrentIrpStackLocation(Irp);
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if (IrpStack->MajorFunction == IRP_MJ_CREATE &&
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CsrssInitialized == FALSE)
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{
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DPRINT("Referencing CSRSS\n");
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Csrss = PsGetCurrentProcess();
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CsrssInitialized = TRUE;
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DPRINT("Csrss %p\n", Csrss);
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}
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Irp->IoStatus.Status = STATUS_SUCCESS;
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Irp->IoStatus.Information = FILE_OPENED;
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IoCompleteRequest(Irp, IO_NO_INCREMENT);
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@ -761,10 +749,9 @@ VidDispatchOpenClose(IN PDEVICE_OBJECT pDO,
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// NTSTATUS
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//
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static VOID
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STDCALL
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VidStartIo(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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static VOID STDCALL
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VidStartIo(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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UNIMPLEMENTED;
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}
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@ -784,30 +771,32 @@ VidStartIo(IN PDEVICE_OBJECT DeviceObject,
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// NTSTATUS
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//
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static NTSTATUS
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STDCALL
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VidDispatchDeviceControl(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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static NTSTATUS STDCALL
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VidDispatchDeviceControl(IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp)
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{
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PIO_STACK_LOCATION IrpStack;
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PVIDEO_REQUEST_PACKET vrp;
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IrpStack = IoGetCurrentIrpStackLocation(Irp);
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// Translate the IRP to a VRP
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vrp = ExAllocatePool(PagedPool, sizeof(VIDEO_REQUEST_PACKET));
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vrp->StatusBlock = ExAllocatePool(PagedPool, sizeof(STATUS_BLOCK));
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vrp->IoControlCode = Irp->Stack[0].Parameters.DeviceIoControl.IoControlCode;
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vrp->IoControlCode = IrpStack->Parameters.DeviceIoControl.IoControlCode;
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// We're assuming METHOD_BUFFERED
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vrp->InputBuffer = Irp->AssociatedIrp.SystemBuffer;
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vrp->InputBufferLength = Irp->Stack[0].Parameters.DeviceIoControl.InputBufferLength;
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vrp->InputBufferLength = IrpStack->Parameters.DeviceIoControl.InputBufferLength;
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vrp->OutputBuffer = Irp->UserBuffer;
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vrp->OutputBufferLength = Irp->Stack[0].Parameters.DeviceIoControl.OutputBufferLength;
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vrp->OutputBufferLength = IrpStack->Parameters.DeviceIoControl.OutputBufferLength;
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// Call the Miniport Driver with the VRP
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DeviceObject->DriverObject->DriverStartIo(DeviceObject->DeviceExtension, (PIRP)vrp);
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// Translate the VRP back into the IRP for OutputBuffer
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Irp->UserBuffer = vrp->OutputBuffer;
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Irp->Stack[0].Parameters.DeviceIoControl.OutputBufferLength = vrp->OutputBufferLength;
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IrpStack->Parameters.DeviceIoControl.OutputBufferLength = vrp->OutputBufferLength;
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// Free the VRP
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ExFreePool(vrp->StatusBlock);
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@ -1,4 +1,4 @@
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/* $Id: init.c,v 1.12 2001/06/25 23:48:20 ekohl Exp $
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/* $Id: init.c,v 1.13 2002/06/14 14:23:14 ekohl Exp $
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*
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* reactos/subsys/csrss/init.c
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*
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@ -75,6 +75,34 @@ CsrParseCommandLine (
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}
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static VOID
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CsrInitVideo(VOID)
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{
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OBJECT_ATTRIBUTES ObjectAttributes;
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UNICODE_STRING DeviceName;
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IO_STATUS_BLOCK Iosb;
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HANDLE VideoHandle;
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NTSTATUS Status;
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RtlInitUnicodeString(&DeviceName, L"\\??\\DISPLAY1");
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InitializeObjectAttributes(&ObjectAttributes,
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&DeviceName,
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0,
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NULL,
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NULL);
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Status = NtOpenFile(&VideoHandle,
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FILE_ALL_ACCESS,
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&ObjectAttributes,
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&Iosb,
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0,
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0);
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if (NT_SUCCESS(Status))
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{
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NtClose(VideoHandle);
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}
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}
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/**********************************************************************
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* NAME
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* CsrServerInitialization
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@ -108,7 +136,9 @@ CsrServerInitialization (
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PrintString("CSR: Unable to parse the command line (Status: %x)\n", Status);
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return(FALSE);
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}
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CsrInitVideo();
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/* NEW NAMED PORT: \ApiPort */
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RtlInitUnicodeString(&PortName, L"\\Windows\\ApiPort");
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InitializeObjectAttributes(&ObAttributes,
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