1126 lines
37 KiB
C
1126 lines
37 KiB
C
/*++
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Copyright (C) Microsoft Corporation, 1998 - 1999
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File Name:
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ioctl.c
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Contained in Module:
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parallel.sys
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Abstract:
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This file contains functions associated with ParClass IOCTL processing.
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- The three main entry points in this file are:
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- ParDeviceControl() - Dispatch function for non-internal IOCTLs
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- ParInternalDeviceControl() - Dispatch function for internal IOCTLs
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- ParDeviceIo() - Worker thread entry point for handling all
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IOCTLs not completed in a dispatch function
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- Helper/Utility function naming conventions:
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- ParpIoctlDispatch...() - private helper function called by dispatch function
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- ParpIoctlThread...() - private helper function called by worker thread
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Authors:
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Anthony V. Ercolano 1-Aug-1992
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Norbert P. Kusters 22-Oct-1993
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Douglas G. Fritz 24-Jul-1998
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Revision History :
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--*/
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#include "pch.h"
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#include "readwrit.h" // require declaration for ParReverseToForward()
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VOID
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ParpIoctlThreadLockPort(
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IN PDEVICE_EXTENSION Extension
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)
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{
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NTSTATUS status;
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PIRP irp = Extension->CurrentOpIrp;
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - attempting to acquire LockPortMutex\n") );
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// ExAcquireFastMutex (&Extension->LockPortMutex);
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - LockPortMutex acquired\n") );
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Extension->AllocatedByLockPort = TRUE;
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// - begin
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - attempting to Select Device\n") );
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// dvdr if( ParSelectDevice(Extension,FALSE) ) {
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if( ParSelectDevice(Extension,TRUE) ) {
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - Select Device - SUCCESS\n") );
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status = STATUS_SUCCESS;
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} else {
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - Select Device - FAIL\n") );
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status = STATUS_UNSUCCESSFUL;
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Extension->AllocatedByLockPort = FALSE;
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - Releasing LockPortMutex\n") );
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// ExReleaseFastMutex (&Extension->LockPortMutex);
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_LOCK_PORT - Released LockPortMutex\n") );
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}
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// - end
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irp->IoStatus.Status = status;
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}
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VOID
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ParpIoctlThreadUnlockPort(
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IN PDEVICE_EXTENSION Extension
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)
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{
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PIRP irp = Extension->CurrentOpIrp;
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_UNLOCK_PORT\n") );
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Extension->AllocatedByLockPort = FALSE;
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if( ParDeselectDevice(Extension, FALSE) ) {
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_UNLOCK_PORT - Device Deselected\n") );
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} else {
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_UNLOCK_PORT - Device Deselect FAILED\n") );
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}
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_UNLOCK_PORT - Releasing LockMutex\n") );
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// ExReleaseFastMutex (&Extension->LockPortMutex);
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ParDump2(PARIOCTL2, ("ParDeviceIo::IOCTL_INTERNAL_UNLOCK_PORT - Released LockMutex\n") );
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irp->IoStatus.Status = STATUS_SUCCESS;
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}
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NTSTATUS
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IoctlTest(PIRP Irp, PIO_STACK_LOCATION IrpSp, PDEVICE_EXTENSION Extension) {
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// if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(PAR_SET_INFORMATION)) {}
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// if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PAR_QUERY_INFORMATION)) {}
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// Status = STATUS_BUFFER_TOO_SMALL;
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ParDump2(PARIOCTL2, ("IoctlTest - Irp= %x , IrpSp= %x , Extension= %x\n", Irp, IrpSp, Extension) );
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ParDump2(PARIOCTL2, ("OutputBufferLength= %d, sizeof(PARALLEL_WMI_LOG_INFO)= %d\n",
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IrpSp->Parameters.DeviceIoControl.OutputBufferLength,
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sizeof(PARALLEL_WMI_LOG_INFO) ) );
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength >= sizeof(PPARALLEL_WMI_LOG_INFO)) {
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PPARALLEL_WMI_LOG_INFO buffer = (PPARALLEL_WMI_LOG_INFO)Irp->AssociatedIrp.SystemBuffer;
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*buffer = Extension->log;
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Irp->IoStatus.Information = sizeof(PARALLEL_WMI_LOG_INFO);
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Irp->IoStatus.Status = STATUS_SUCCESS;
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ParCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_SUCCESS;
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} else {
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Irp->IoStatus.Information = 0;
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Irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
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ParCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_BUFFER_TOO_SMALL;
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}
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}
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NTSTATUS
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ParDeviceControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN PIRP Irp
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)
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/*++
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Routine Description:
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This routine is the dispatch for device control requests.
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Arguments:
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DeviceObject - Supplies the device object.
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Irp - Supplies the I/O request packet.
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Return Value:
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STATUS_SUCCESS - Success.
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STATUS_PENDING - Request pending.
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STATUS_BUFFER_TOO_SMALL - Buffer too small.
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STATUS_INVALID_PARAMETER - Invalid io control request.
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STATUS_DELETE_PENDING - This device object is being deleted
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--*/
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{
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PIO_STACK_LOCATION IrpSp;
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PPAR_SET_INFORMATION SetInfo;
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NTSTATUS Status;
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PSERIAL_TIMEOUTS SerialTimeouts;
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PDEVICE_EXTENSION Extension;
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KIRQL OldIrql;
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// PPARCLASS_INFORMATION pParclassInfo;
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ParDump2(PARIOCTL2, ("Enter ParDeviceControl(...)\n") );
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Irp->IoStatus.Information = 0;
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IrpSp = IoGetCurrentIrpStackLocation(Irp);
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Extension = DeviceObject->DeviceExtension;
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//
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// bail out if a delete is pending for this device object
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//
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if(Extension->DeviceStateFlags & PAR_DEVICE_DELETE_PENDING) {
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Irp->IoStatus.Status = STATUS_DELETE_PENDING;
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ParCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_DELETE_PENDING;
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}
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//
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// bail out if a remove is pending for our ParPort device object
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//
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if(Extension->DeviceStateFlags & PAR_DEVICE_PORT_REMOVE_PENDING) {
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Irp->IoStatus.Status = STATUS_DELETE_PENDING;
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ParCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_DELETE_PENDING;
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}
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//
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// bail out if device has been removed
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//
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if(Extension->DeviceStateFlags & (PAR_DEVICE_REMOVED|PAR_DEVICE_SURPRISE_REMOVAL) ) {
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Irp->IoStatus.Status = STATUS_DEVICE_REMOVED;
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ParCompleteRequest(Irp, IO_NO_INCREMENT);
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return STATUS_DEVICE_REMOVED;
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}
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switch (IrpSp->Parameters.DeviceIoControl.IoControlCode) {
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#if 0
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case IOCTL_PAR_TEST:
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return IoctlTest(Irp, IrpSp, Extension);
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#endif
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case IOCTL_PAR_SET_INFORMATION:
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ParDump2(PARIOCTL2, ("IOCTL_PAR_SET_INFORMATION\n") );
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SetInfo = Irp->AssociatedIrp.SystemBuffer;
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if (IrpSp->Parameters.DeviceIoControl.InputBufferLength <
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sizeof(PAR_SET_INFORMATION)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else if (SetInfo->Init != PARALLEL_INIT) {
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Status = STATUS_INVALID_PARAMETER;
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} else {
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//
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// This is a parallel reset
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//
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Status = STATUS_PENDING;
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}
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break;
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case IOCTL_PAR_QUERY_INFORMATION :
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ParDump2(PARIOCTL2, ("IOCTL_PAR_QUERY_INFORMATION - %wZ\n",
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&Extension->SymbolicLinkName) );
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
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sizeof(PAR_QUERY_INFORMATION)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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Status = STATUS_PENDING;
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}
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break;
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case IOCTL_SERIAL_SET_TIMEOUTS:
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ParDump2(PARIOCTL2, ("IOCTL_SERIAL_SET_TIMEOUTS - %wZ\n",
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&Extension->SymbolicLinkName) );
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SerialTimeouts = Irp->AssociatedIrp.SystemBuffer;
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if (IrpSp->Parameters.DeviceIoControl.InputBufferLength <
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sizeof(SERIAL_TIMEOUTS)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else if (SerialTimeouts->WriteTotalTimeoutConstant < 2000) {
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Status = STATUS_INVALID_PARAMETER;
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} else {
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Status = STATUS_PENDING;
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}
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break;
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case IOCTL_SERIAL_GET_TIMEOUTS:
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ParDump2(PARIOCTL2, ("IOCTL_SERIAL_GET_TIMEOUTS - %wZ\n",
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&Extension->SymbolicLinkName) );
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SerialTimeouts = Irp->AssociatedIrp.SystemBuffer;
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
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sizeof(SERIAL_TIMEOUTS)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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//
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// We don't need to synchronize the read.
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//
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RtlZeroMemory(SerialTimeouts, sizeof(SERIAL_TIMEOUTS));
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SerialTimeouts->WriteTotalTimeoutConstant =
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1000 * Extension->TimerStart;
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Irp->IoStatus.Information = sizeof(SERIAL_TIMEOUTS);
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Status = STATUS_SUCCESS;
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}
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break;
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case IOCTL_PAR_QUERY_DEVICE_ID:
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case IOCTL_PAR_QUERY_RAW_DEVICE_ID:
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ParDump2(PARIOCTL2, ("IOCTL_PAR_QUERY_DEVICE_ID - %wZ\n",
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&Extension->SymbolicLinkName) );
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength == 0) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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Status = STATUS_PENDING;
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}
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break;
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case IOCTL_PAR_QUERY_DEVICE_ID_SIZE:
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ParDump2(PARIOCTL2, ("IOCTL_PAR_QUERY_DEVICE_ID_SIZE - %wZ\n",
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&Extension->SymbolicLinkName) );
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
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sizeof(PAR_DEVICE_ID_SIZE_INFORMATION)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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Status = STATUS_PENDING;
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}
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break;
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case IOCTL_PAR_IS_PORT_FREE:
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ParDump2(PARIOCTL2, ("IOCTL_PAR_IS_PORT_FREE - %wZ\n", &Extension->SymbolicLinkName));
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if( IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(BOOLEAN) ) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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if( Extension->bAllocated ) {
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// if we have the port then it is not free
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*((PBOOLEAN)Irp->AssociatedIrp.SystemBuffer) = FALSE;
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} else {
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// determine if the port is free by trying to allocate and free it
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// - our alloc/free will only succeed if no one else has the port
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BOOLEAN tryAllocSuccess = Extension->TryAllocatePort( Extension->PortContext );
|
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if( tryAllocSuccess ) {
|
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// we were able to allocate the port, free it and report that the port is free
|
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Extension->FreePort( Extension->PortContext );
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*((PBOOLEAN)Irp->AssociatedIrp.SystemBuffer) = TRUE;
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} else {
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// we were unable to allocate the port, someone else must be using the port
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*((PBOOLEAN)Irp->AssociatedIrp.SystemBuffer) = FALSE;
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}
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}
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||
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Irp->IoStatus.Information = sizeof(BOOLEAN);
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Status = STATUS_SUCCESS;
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||
|
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}
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break;
|
||
|
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case IOCTL_PAR_GET_READ_ADDRESS:
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ParDump2(PARIOCTL2, ("IOCTL_PAR_GET_READ_ADDRESS - %wZ\n",
|
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&Extension->SymbolicLinkName) );
|
||
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
|
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sizeof(Extension->ReverseInterfaceAddress))
|
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{
|
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Status = STATUS_BUFFER_TOO_SMALL;
|
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}
|
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else
|
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{
|
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*((PUCHAR) Irp->AssociatedIrp.SystemBuffer) = Extension->ReverseInterfaceAddress;
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Irp->IoStatus.Information = sizeof(Extension->ReverseInterfaceAddress);
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Status = STATUS_SUCCESS;
|
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}
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break;
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||
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case IOCTL_PAR_GET_WRITE_ADDRESS:
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ParDump2(PARIOCTL2, ("IOCTL_PAR_GET_WRITE_ADDRESS - %wZ\n",
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&Extension->SymbolicLinkName) );
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
|
||
sizeof(Extension->ForwardInterfaceAddress))
|
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{
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
}
|
||
else
|
||
{
|
||
*((PUCHAR) Irp->AssociatedIrp.SystemBuffer) = Extension->ForwardInterfaceAddress;
|
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Irp->IoStatus.Information = sizeof(Extension->ForwardInterfaceAddress);
|
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Status = STATUS_SUCCESS;
|
||
}
|
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break;
|
||
|
||
case IOCTL_PAR_SET_READ_ADDRESS:
|
||
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ParDump2(PARIOCTL2, (" IOCTL_PAR_SET_READ_ADDRESS - %wZ\n",
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&Extension->SymbolicLinkName) );
|
||
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if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(Extension->ReverseInterfaceAddress)) {
|
||
|
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Status = STATUS_INVALID_PARAMETER;
|
||
|
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} else {
|
||
|
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Status = STATUS_PENDING;
|
||
}
|
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break;
|
||
|
||
case IOCTL_PAR_SET_WRITE_ADDRESS:
|
||
|
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ParDump2(PARIOCTL2, (" IOCTL_PAR_SET_WRITE_ADDRESS - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(Extension->ForwardInterfaceAddress)) {
|
||
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
|
||
} else {
|
||
|
||
Status = STATUS_PENDING;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_IEEE1284_GET_MODE:
|
||
|
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ParDump2(PARIOCTL2, ("IOCTL_IEEE1284_GET_MODE - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
|
||
sizeof(PARCLASS_NEGOTIATION_MASK)) {
|
||
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
|
||
} else {
|
||
|
||
PPARCLASS_NEGOTIATION_MASK ppnmMask;
|
||
|
||
ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
ppnmMask->usReadMask =
|
||
arpReverse[Extension->IdxReverseProtocol].Protocol;
|
||
|
||
ppnmMask->usWriteMask =
|
||
afpForward[Extension->IdxForwardProtocol].Protocol;
|
||
|
||
Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
|
||
Status = STATUS_SUCCESS;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_GET_DEFAULT_MODES:
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL_IEEE1284_GET_MODE - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
|
||
sizeof(PARCLASS_NEGOTIATION_MASK)) {
|
||
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
|
||
} else {
|
||
|
||
PPARCLASS_NEGOTIATION_MASK ppnmMask;
|
||
|
||
ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
ppnmMask->usReadMask = NONE;
|
||
ppnmMask->usWriteMask = CENTRONICS;
|
||
|
||
Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
|
||
Status = STATUS_SUCCESS;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_ECP_HOST_RECOVERY:
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL_PAR_ECP_HOST_RECOVERY - %wZ\n", &Extension->SymbolicLinkName) );
|
||
{
|
||
BOOLEAN *isSupported;
|
||
|
||
if( IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(BOOLEAN) ) {
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
} else {
|
||
isSupported = (BOOLEAN *)Irp->AssociatedIrp.SystemBuffer;
|
||
Extension->bIsHostRecoverSupported = *isSupported;
|
||
Status = STATUS_SUCCESS;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_PING:
|
||
ParDump2(PARIOCTL2, ("IOCTL_PAR_PING - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
// No Parms to check!
|
||
Status = STATUS_PENDING;
|
||
break;
|
||
|
||
case IOCTL_PAR_GET_DEVICE_CAPS:
|
||
ParDump2(PARIOCTL2, ("IOCTL_PAR_GET_DEVICE_CAPS - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
|
||
sizeof(Extension->ProtocolModesSupported)) {
|
||
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
|
||
} else {
|
||
Status = STATUS_PENDING;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_IEEE1284_NEGOTIATE:
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL_IEEE1284_NEGOTIATE - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
|
||
if ( IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(PARCLASS_NEGOTIATION_MASK) ||
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PARCLASS_NEGOTIATION_MASK) ) {
|
||
ParDump2(PARERRORS, ( "ParDeviceControl: IOCTL_IEEE1284_NEGOTIATE STATUS_INVALID_PARAMETER.\n" ));
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
|
||
} else {
|
||
|
||
PPARCLASS_NEGOTIATION_MASK ppnmMask;
|
||
|
||
ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
if ((ppnmMask->usReadMask == arpReverse[Extension->IdxReverseProtocol].Protocol) &&
|
||
(ppnmMask->usWriteMask == afpForward[Extension->IdxForwardProtocol].Protocol))
|
||
{
|
||
Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
ParDump2(PARINFO, ( "ParDeviceControl: IOCTL_IEEE1284_NEGOTIATE Passed.\n" ));
|
||
Status = STATUS_SUCCESS;
|
||
}
|
||
else
|
||
Status = STATUS_PENDING;
|
||
}
|
||
break;
|
||
|
||
default :
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL default case\n") );
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
break;
|
||
}
|
||
|
||
if (Status == STATUS_PENDING) {
|
||
|
||
IoAcquireCancelSpinLock(&OldIrql);
|
||
|
||
if (Irp->Cancel) {
|
||
|
||
IoReleaseCancelSpinLock(OldIrql);
|
||
Status = STATUS_CANCELLED;
|
||
|
||
} else {
|
||
|
||
//
|
||
// This IRP takes more time, so it should be queued.
|
||
//
|
||
BOOLEAN needToSignalSemaphore = IsListEmpty( &Extension->WorkQueue );
|
||
IoMarkIrpPending(Irp);
|
||
IoSetCancelRoutine(Irp, ParCancelRequest);
|
||
InsertTailList(&Extension->WorkQueue, &Irp->Tail.Overlay.ListEntry);
|
||
IoReleaseCancelSpinLock(OldIrql);
|
||
if( needToSignalSemaphore ) {
|
||
KeReleaseSemaphore(&Extension->RequestSemaphore, 0, 1, FALSE);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (Status != STATUS_PENDING) {
|
||
|
||
Irp->IoStatus.Status = Status;
|
||
ParCompleteRequest(Irp, IO_NO_INCREMENT);
|
||
|
||
}
|
||
|
||
return Status;
|
||
}
|
||
|
||
NTSTATUS
|
||
ParInternalDeviceControl(
|
||
IN PDEVICE_OBJECT DeviceObject,
|
||
IN PIRP Irp
|
||
)
|
||
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
This routine is the dispatch for internal device control requests.
|
||
|
||
Arguments:
|
||
|
||
DeviceObject - Supplies the device object.
|
||
|
||
Irp - Supplies the I/O request packet.
|
||
|
||
Return Value:
|
||
|
||
STATUS_SUCCESS - Success.
|
||
STATUS_PENDING - Request pending.
|
||
STATUS_BUFFER_TOO_SMALL - Buffer too small.
|
||
STATUS_INVALID_PARAMETER - Invalid io control request.
|
||
STATUS_DELETE_PENDING - This device object is being deleted
|
||
|
||
--*/
|
||
|
||
{
|
||
PIO_STACK_LOCATION IrpSp;
|
||
// PPAR_SET_INFORMATION SetInfo;
|
||
NTSTATUS Status;
|
||
// PSERIAL_TIMEOUTS SerialTimeouts;
|
||
PDEVICE_EXTENSION Extension;
|
||
KIRQL OldIrql;
|
||
PPARCLASS_INFORMATION pParclassInfo;
|
||
|
||
ParDump2(PARIOCTL2, ("Enter ParInternalDeviceControl(...)\n") );
|
||
|
||
Irp->IoStatus.Information = 0;
|
||
|
||
IrpSp = IoGetCurrentIrpStackLocation(Irp);
|
||
Extension = DeviceObject->DeviceExtension;
|
||
|
||
//
|
||
// bail out if a delete is pending for this device object
|
||
//
|
||
if(Extension->DeviceStateFlags & PAR_DEVICE_DELETE_PENDING) {
|
||
Irp->IoStatus.Status = STATUS_DELETE_PENDING;
|
||
ParCompleteRequest(Irp, IO_NO_INCREMENT);
|
||
ParDump2(PARIOCTL2, ("ParInternalDeviceControl(...) - returning DELETE_PENDING\n") );
|
||
return STATUS_DELETE_PENDING;
|
||
}
|
||
|
||
//
|
||
// bail out if a remove is pending for our ParPort device object
|
||
//
|
||
if(Extension->DeviceStateFlags & PAR_DEVICE_PORT_REMOVE_PENDING) {
|
||
Irp->IoStatus.Status = STATUS_DELETE_PENDING;
|
||
ParCompleteRequest(Irp, IO_NO_INCREMENT);
|
||
ParDump2(PARIOCTL2, ("ParInternalDeviceControl(...) - returning DELETE_PENDING\n") );
|
||
return STATUS_DELETE_PENDING;
|
||
}
|
||
|
||
//
|
||
// bail out if device has been removed
|
||
//
|
||
if(Extension->DeviceStateFlags & (PAR_DEVICE_REMOVED|PAR_DEVICE_SURPRISE_REMOVAL) ) {
|
||
|
||
Irp->IoStatus.Status = STATUS_DEVICE_REMOVED;
|
||
ParCompleteRequest(Irp, IO_NO_INCREMENT);
|
||
return STATUS_DEVICE_REMOVED;
|
||
}
|
||
|
||
switch (IrpSp->Parameters.DeviceIoControl.IoControlCode) {
|
||
|
||
case IOCTL_INTERNAL_PARCLASS_CONNECT:
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL_PARCLASS_CONNECT - Dispatch\n") );
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL_PARCLASS_CONNECT - %wZ\n",
|
||
&Extension->SymbolicLinkName) );
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength <
|
||
sizeof(PARCLASS_INFORMATION)) {
|
||
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
|
||
} else {
|
||
|
||
pParclassInfo = Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
pParclassInfo->Controller = Extension->Controller;
|
||
pParclassInfo->EcrController = Extension->EcrController;
|
||
pParclassInfo->SpanOfController = Extension->SpanOfController;
|
||
pParclassInfo->ParclassContext = Extension;
|
||
pParclassInfo->HardwareCapabilities = Extension->HardwareCapabilities;
|
||
pParclassInfo->FifoDepth = Extension->FifoDepth;
|
||
pParclassInfo->FifoWidth = Extension->FifoWidth;
|
||
pParclassInfo->DetermineIeeeModes = ParExportedDetermineIeeeModes;
|
||
pParclassInfo->TerminateIeeeMode = ParExportedTerminateIeeeMode;
|
||
pParclassInfo->NegotiateIeeeMode = ParExportedNegotiateIeeeMode;
|
||
pParclassInfo->IeeeFwdToRevMode = ParExportedIeeeFwdToRevMode;
|
||
pParclassInfo->IeeeRevToFwdMode = ParExportedIeeeRevToFwdMode;
|
||
pParclassInfo->ParallelRead = ParExportedParallelRead;
|
||
pParclassInfo->ParallelWrite = ParExportedParallelWrite;
|
||
|
||
Irp->IoStatus.Information = sizeof(PARCLASS_INFORMATION);
|
||
|
||
Status = STATUS_SUCCESS;
|
||
}
|
||
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_PARCLASS_DISCONNECT:
|
||
|
||
Status = STATUS_SUCCESS;
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_DISCONNECT_IDLE:
|
||
case IOCTL_INTERNAL_LOCK_PORT:
|
||
case IOCTL_INTERNAL_UNLOCK_PORT:
|
||
case IOCTL_INTERNAL_PARDOT3_CONNECT:
|
||
case IOCTL_INTERNAL_PARDOT3_RESET:
|
||
|
||
Status = STATUS_PENDING;
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_PARDOT3_DISCONNECT:
|
||
|
||
// immediately tell worker thread to stop signalling
|
||
Extension->P12843DL.bEventActive = FALSE;
|
||
Status = STATUS_PENDING;
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_PARDOT3_SIGNAL:
|
||
|
||
if( IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(PKEVENT) ) {
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
} else {
|
||
Status = STATUS_PENDING;
|
||
}
|
||
break;
|
||
|
||
default :
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL... default case - Dispatch\n") );
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
break;
|
||
}
|
||
|
||
|
||
if (Status == STATUS_PENDING) {
|
||
|
||
//
|
||
// This IRP takes more time, queue it for the worker thread
|
||
//
|
||
|
||
IoAcquireCancelSpinLock(&OldIrql);
|
||
|
||
if (Irp->Cancel) {
|
||
|
||
IoReleaseCancelSpinLock(OldIrql);
|
||
Status = STATUS_CANCELLED;
|
||
|
||
} else {
|
||
|
||
BOOLEAN needToSignalSemaphore = IsListEmpty( &Extension->WorkQueue );
|
||
IoMarkIrpPending(Irp);
|
||
IoSetCancelRoutine(Irp, ParCancelRequest);
|
||
InsertTailList(&Extension->WorkQueue, &Irp->Tail.Overlay.ListEntry);
|
||
IoReleaseCancelSpinLock(OldIrql);
|
||
if( needToSignalSemaphore ) {
|
||
KeReleaseSemaphore(&Extension->RequestSemaphore, 0, 1, FALSE);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (Status != STATUS_PENDING) {
|
||
|
||
Irp->IoStatus.Status = Status;
|
||
ParCompleteRequest(Irp, IO_NO_INCREMENT);
|
||
}
|
||
|
||
return Status;
|
||
}
|
||
|
||
VOID
|
||
ParDeviceIo(
|
||
IN PDEVICE_EXTENSION Extension
|
||
)
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
This routine implements a DEVICE_IOCTL request with the extension's current irp.
|
||
|
||
Arguments:
|
||
|
||
Extension - Supplies the device extension.
|
||
|
||
Return Value:
|
||
|
||
None.
|
||
|
||
--*/
|
||
{
|
||
|
||
PIRP Irp;
|
||
PIO_STACK_LOCATION IrpSp;
|
||
ULONG IdLength;
|
||
NTSTATUS NtStatus;
|
||
UCHAR Status;
|
||
UCHAR Control;
|
||
ULONG ioControlCode;
|
||
|
||
// ParDump2(PARIOCTL2,("Enter ParDeviceIo(...)\n") );
|
||
|
||
Irp = Extension->CurrentOpIrp;
|
||
IrpSp = IoGetCurrentIrpStackLocation(Irp);
|
||
|
||
ioControlCode = IrpSp->Parameters.DeviceIoControl.IoControlCode;
|
||
|
||
switch( ioControlCode ) {
|
||
|
||
case IOCTL_PAR_SET_INFORMATION :
|
||
{
|
||
|
||
PPAR_SET_INFORMATION IrpBuffer = Extension->CurrentOpIrp->AssociatedIrp.SystemBuffer;
|
||
|
||
Status = ParInitializeDevice(Extension);
|
||
|
||
if (!PAR_OK(Status)) {
|
||
ParNotInitError(Extension, Status); // Set the IoStatus.Status of the CurrentOpIrp appropriately
|
||
} else {
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_QUERY_INFORMATION :
|
||
{
|
||
PPAR_QUERY_INFORMATION IrpBuffer = Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
|
||
Status = GetStatus(Extension->Controller);
|
||
Control = GetControl(Extension->Controller);
|
||
|
||
// Interpretating Status & Control
|
||
|
||
IrpBuffer->Status = 0x0;
|
||
|
||
if (PAR_POWERED_OFF(Status) || PAR_NO_CABLE(Status)) {
|
||
|
||
IrpBuffer->Status = (UCHAR)(IrpBuffer->Status | PARALLEL_POWER_OFF);
|
||
|
||
} else if (PAR_PAPER_EMPTY(Status)) {
|
||
|
||
IrpBuffer->Status = (UCHAR)(IrpBuffer->Status | PARALLEL_PAPER_EMPTY);
|
||
|
||
} else if (PAR_OFF_LINE(Status)) {
|
||
|
||
IrpBuffer->Status = (UCHAR)(IrpBuffer->Status | PARALLEL_OFF_LINE);
|
||
|
||
} else if (PAR_NOT_CONNECTED(Status)) {
|
||
|
||
IrpBuffer->Status = (UCHAR)(IrpBuffer->Status | PARALLEL_NOT_CONNECTED);
|
||
|
||
}
|
||
|
||
if (PAR_BUSY(Status)) {
|
||
IrpBuffer->Status = (UCHAR)(IrpBuffer->Status | PARALLEL_BUSY);
|
||
}
|
||
|
||
if (PAR_SELECTED(Status)) {
|
||
IrpBuffer->Status = (UCHAR)(IrpBuffer->Status | PARALLEL_SELECTED);
|
||
}
|
||
|
||
Irp->IoStatus.Information = sizeof( PAR_QUERY_INFORMATION );
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_QUERY_RAW_DEVICE_ID :
|
||
|
||
// We always read the Device Id in Nibble Mode.
|
||
NtStatus = SppQueryDeviceId(Extension,
|
||
Irp->AssociatedIrp.SystemBuffer,
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength,
|
||
&IdLength, TRUE);
|
||
|
||
Irp->IoStatus.Status = NtStatus;
|
||
|
||
if (NT_SUCCESS(NtStatus)) {
|
||
Irp->IoStatus.Information = IdLength;
|
||
} else {
|
||
Irp->IoStatus.Information = 0;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_QUERY_DEVICE_ID :
|
||
|
||
// We always read the Device Id in Nibble Mode.
|
||
NtStatus = SppQueryDeviceId(Extension,
|
||
Irp->AssociatedIrp.SystemBuffer,
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength,
|
||
&IdLength, FALSE);
|
||
|
||
Irp->IoStatus.Status = NtStatus;
|
||
|
||
if( NT_SUCCESS( NtStatus ) ) {
|
||
ParDump2(PARIOCTL1, ("IOCTL_PAR_QUERY_ID - SUCCESS - size = %d\n", IdLength));
|
||
// Include terminating NULL in the string to copy back to user buffer
|
||
Irp->IoStatus.Information = IdLength + sizeof(CHAR);
|
||
} else if( NtStatus == STATUS_BUFFER_TOO_SMALL) {
|
||
ParDump2(PARIOCTL1, ("IOCTL_PAR_QUERY_ID - FAIL - BUFFER_TOO_SMALL - supplied= %d, required=%d\n",
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength, IdLength) );
|
||
Irp->IoStatus.Information = 0;
|
||
} else {
|
||
ParDump2(PARIOCTL1, ("IOCTL_PAR_QUERY_ID - FAIL - QUERY ID FAILED\n") );
|
||
Irp->IoStatus.Information = 0;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_QUERY_DEVICE_ID_SIZE :
|
||
|
||
//
|
||
// Read the first two bytes of the Nibble Id, add room for the terminating NULL and
|
||
// return this to the caller.
|
||
//
|
||
NtStatus = SppQueryDeviceId(Extension, NULL, 0, &IdLength, FALSE);
|
||
|
||
if (NtStatus == STATUS_BUFFER_TOO_SMALL) {
|
||
|
||
ParDump2(PARIOCTL1, ("IOCTL_PAR_QUERY_DEVICE_ID_SIZE - size required = %d\n", IdLength));
|
||
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
|
||
Irp->IoStatus.Information =
|
||
sizeof(PAR_DEVICE_ID_SIZE_INFORMATION);
|
||
|
||
// include space for terminating NULL
|
||
((PPAR_DEVICE_ID_SIZE_INFORMATION)
|
||
Irp->AssociatedIrp.SystemBuffer)->DeviceIdSize = IdLength + sizeof(CHAR);
|
||
|
||
} else {
|
||
|
||
Irp->IoStatus.Status = NtStatus;
|
||
Irp->IoStatus.Information = 0;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_PING :
|
||
|
||
// We need to do a quick terminate and negotiate of the current modes
|
||
NtStatus = ParPing(Extension);
|
||
ParDump2(PARINFO, ("ParDeviceIo:IOCTL_PAR_PING\n"));
|
||
Irp->IoStatus.Status = NtStatus;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_DISCONNECT_IDLE :
|
||
|
||
if ((Extension->Connected) &&
|
||
(afpForward[Extension->IdxForwardProtocol].fnDisconnect)) {
|
||
|
||
ParDump2(PARINFO, ("ParDeviceIo:IOCTL_INTERNAL_DISCONNECT_IDLE: Calling afpForward.fnDisconnect\n"));
|
||
afpForward[Extension->IdxForwardProtocol].fnDisconnect (Extension);
|
||
}
|
||
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
|
||
case IOCTL_IEEE1284_NEGOTIATE:
|
||
{
|
||
PPARCLASS_NEGOTIATION_MASK ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
ParTerminate(Extension);
|
||
Irp->IoStatus.Status = IeeeNegotiateMode(Extension, ppnmMask->usReadMask, ppnmMask->usWriteMask);
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength >= sizeof(PARCLASS_NEGOTIATION_MASK)) {
|
||
ParDump2(PARINFO, ( "ParDeviceIo: IOCTL_IEEE1284_NEGOTIATE Passed.\n" ));
|
||
ppnmMask->usReadMask = arpReverse[Extension->IdxReverseProtocol].Protocol;
|
||
ppnmMask->usWriteMask = afpForward[Extension->IdxForwardProtocol].Protocol;
|
||
Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
} else {
|
||
ParDump2(PARERRORS, ( "ParDeviceIo: IOCTL_IEEE1284_NEGOTIATE failed.\n" ));
|
||
Irp->IoStatus.Information = 0;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_GET_DEVICE_CAPS :
|
||
|
||
Extension->BadProtocolModes = *((USHORT *) Irp->AssociatedIrp.SystemBuffer);
|
||
IeeeDetermineSupportedProtocols(Extension);
|
||
*((USHORT *) Irp->AssociatedIrp.SystemBuffer) = Extension->ProtocolModesSupported;
|
||
Irp->IoStatus.Information = sizeof(Extension->ProtocolModesSupported);
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
break;
|
||
|
||
case IOCTL_PAR_SET_READ_ADDRESS:
|
||
{
|
||
PUCHAR pAddress = (PUCHAR)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
if (Extension->ReverseInterfaceAddress != *pAddress) {
|
||
|
||
Extension->ReverseInterfaceAddress = *pAddress;
|
||
Extension->SetReverseAddress = TRUE;
|
||
}
|
||
|
||
Irp->IoStatus.Information = 0;
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_SET_WRITE_ADDRESS :
|
||
{
|
||
PUCHAR pAddress = (PUCHAR)Irp->AssociatedIrp.SystemBuffer;
|
||
NtStatus = STATUS_SUCCESS;
|
||
|
||
if (Extension->ForwardInterfaceAddress != *pAddress) {
|
||
|
||
Extension->ForwardInterfaceAddress = *pAddress;
|
||
|
||
if (Extension->Connected) {
|
||
if (afpForward[Extension->IdxForwardProtocol].fnSetInterfaceAddress) {
|
||
|
||
if (Extension->CurrentPhase != PHASE_FORWARD_IDLE &&
|
||
Extension->CurrentPhase != PHASE_FORWARD_XFER) {
|
||
NtStatus = ParReverseToForward(Extension);
|
||
}
|
||
|
||
if (NT_SUCCESS(NtStatus)) {
|
||
NtStatus = afpForward[Extension->IdxForwardProtocol].fnSetInterfaceAddress(
|
||
Extension,
|
||
Extension->ForwardInterfaceAddress
|
||
);
|
||
}
|
||
|
||
if (NT_SUCCESS(NtStatus)) {
|
||
Extension->SetForwardAddress = FALSE;
|
||
Extension->SetReverseAddress = FALSE;
|
||
Extension->ReverseInterfaceAddress = *pAddress;
|
||
} else {
|
||
Extension->SetForwardAddress = TRUE;
|
||
ParDump2(PARERRORS, ( "ParDeviceIo: IOCTL_PAR_SET_WRITE_ADDRESS Failed\n" ));
|
||
}
|
||
} else {
|
||
#if DBG
|
||
ParDump2(PARERRORS, ( "ParDeviceIo: Someone called IOCTL_PAR_SET_WRITE_ADDRESS.\n" ));
|
||
ParDump2(PARERRORS, ( "ParDeviceIo: You don't have a fnSetInterfaceAddress.\n" ));
|
||
ParDump2(PARERRORS, ( "ParDeviceIo: Either IEEE1284.c has wrong info or your caller is in error!\n" ));
|
||
NtStatus = STATUS_UNSUCCESSFUL;
|
||
#endif
|
||
}
|
||
} else {
|
||
Extension->SetForwardAddress = TRUE;
|
||
}
|
||
}
|
||
|
||
Irp->IoStatus.Information = 0;
|
||
Irp->IoStatus.Status = NtStatus;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_LOCK_PORT :
|
||
|
||
ParpIoctlThreadLockPort(Extension);
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_UNLOCK_PORT :
|
||
|
||
ParpIoctlThreadUnlockPort(Extension);
|
||
break;
|
||
|
||
case IOCTL_SERIAL_SET_TIMEOUTS:
|
||
{
|
||
PSERIAL_TIMEOUTS ptoNew = Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
//
|
||
// The only other thing let through is setting
|
||
// the timer start.
|
||
//
|
||
|
||
Extension->TimerStart = ptoNew->WriteTotalTimeoutConstant / 1000;
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_PARDOT3_CONNECT:
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL_PARDOT3_CONNECT - Dispatch\n") );
|
||
Irp->IoStatus.Status = ParDot3Connect(Extension);
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
case IOCTL_INTERNAL_PARDOT3_DISCONNECT:
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL_PARDOT3_DISCONNECT - Dispatch\n") );
|
||
Irp->IoStatus.Status = ParDot3Disconnect(Extension);
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
case IOCTL_INTERNAL_PARDOT3_SIGNAL:
|
||
{
|
||
PKEVENT Event;// = (PKEVENT)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
RtlCopyMemory(&Event, Irp->AssociatedIrp.SystemBuffer, sizeof(PKEVENT));
|
||
|
||
ASSERT_EVENT(Event);
|
||
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL_PARDOT3_SIGNAL - Dispatch. Event [%x]\n", Event) );
|
||
|
||
Extension->P12843DL.Event = Event;
|
||
Extension->P12843DL.bEventActive = TRUE;
|
||
}
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
case IOCTL_INTERNAL_PARDOT3_RESET:
|
||
ParDump2(PARIOCTL2, ("IOCTL_INTERNAL_PARDOT3_RESET - Dispatch\n") );
|
||
if (Extension->P12843DL.fnReset)
|
||
Irp->IoStatus.Status = ((PDOT3_RESET_ROUTINE) (Extension->P12843DL.fnReset))(Extension);
|
||
else
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
default:
|
||
|
||
//
|
||
// unrecognized IOCTL? - we should never get here because the
|
||
// dispatch routines should have filtered this out
|
||
//
|
||
|
||
// probably harmless, but we want to know if this happens
|
||
// so we can fix the problem elsewhere
|
||
ASSERTMSG("Unrecognized IOCTL in ParDeviceIo()\n",FALSE);
|
||
|
||
Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
|
||
}
|
||
|
||
return;
|
||
}
|