1070 lines
35 KiB
C
1070 lines
35 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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|
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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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VOID
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ParpIoctlThreadLockPort(
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IN PPDO_EXTENSION Pdx
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)
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{
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NTSTATUS status;
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PIRP irp = Pdx->CurrentOpIrp;
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DD((PCE)Pdx,DDT,"ParpIoctlThreadLockPort - enter\n");
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if( ParSelectDevice(Pdx,TRUE) ) {
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DD((PCE)Pdx,DDT,"ParpIoctlThreadLockPort - SUCCESS\n");
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Pdx->AllocatedByLockPort = TRUE;
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status = STATUS_SUCCESS;
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} else {
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DD((PCE)Pdx,DDW,"ParpIoctlThreadLockPort - FAIL\n");
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Pdx->AllocatedByLockPort = FALSE;
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status = STATUS_UNSUCCESSFUL;
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}
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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 PPDO_EXTENSION Pdx
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)
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{
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PIRP irp = Pdx->CurrentOpIrp;
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Pdx->AllocatedByLockPort = FALSE;
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DD((PCE)Pdx,DDT,"ParpIoctlThreadUnlockPort - enter\n");
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if( ParDeselectDevice(Pdx, FALSE) ) {
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DD((PCE)Pdx,DDT,"ParpIoctlThreadUnlockPort - SUCCESS\n");
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} else {
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DD((PCE)Pdx,DDW,"ParpIoctlThreadUnlockPort - FAIL - nothing we can do\n");
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}
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irp->IoStatus.Status = STATUS_SUCCESS;
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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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PPDO_EXTENSION Pdx = DeviceObject->DeviceExtension;
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PIO_STACK_LOCATION IrpSp = IoGetCurrentIrpStackLocation( Irp );
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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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KIRQL OldIrql;
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Irp->IoStatus.Information = 0;
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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(Pdx->DeviceStateFlags & PPT_DEVICE_DELETE_PENDING) {
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return P4CompleteRequest( Irp, STATUS_DELETE_PENDING, 0 );
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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(Pdx->DeviceStateFlags & PAR_DEVICE_PORT_REMOVE_PENDING) {
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return P4CompleteRequest( Irp, STATUS_DELETE_PENDING, 0 );
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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(Pdx->DeviceStateFlags & (PPT_DEVICE_REMOVED|PPT_DEVICE_SURPRISE_REMOVED) ) {
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return P4CompleteRequest( Irp, STATUS_DEVICE_REMOVED, 0 );
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}
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switch (IrpSp->Parameters.DeviceIoControl.IoControlCode) {
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case IOCTL_PAR_QUERY_LOCATION:
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DD((PCE)Pdx,DDT,"IOCTL_PAR_QUERY_LOCATION\n");
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{
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ULONG outBufLen = IrpSp->Parameters.DeviceIoControl.OutputBufferLength;
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ULONG locationLen = strlen(Pdx->Location);
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if( outBufLen < locationLen+1 ) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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PCHAR buffer = (PCHAR)Irp->AssociatedIrp.SystemBuffer;
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RtlCopyMemory( buffer, Pdx->Location, locationLen + 1 );
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Irp->IoStatus.Information = locationLen + 1;
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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_SET_INFORMATION:
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DD((PCE)Pdx,DDT,"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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DD((PCE)Pdx,DDT,"IOCTL_PAR_QUERY_INFORMATION\n");
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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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DD((PCE)Pdx,DDT,"IOCTL_SERIAL_SET_TIMEOUTS\n");
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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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DD((PCE)Pdx,DDT,"IOCTL_SERIAL_GET_TIMEOUTS\n");
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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 * Pdx->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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DD((PCE)Pdx,DDT,"IOCTL_PAR_QUERY_[RAW_]DEVICE_ID\n");
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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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DD((PCE)Pdx,DDT,"IOCTL_PAR_QUERY_DEVICE_ID_SIZE\n");
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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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DD((PCE)Pdx,DDT,"IOCTL_PAR_IS_PORT_FREE\n");
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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( Pdx->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 = Pdx->TryAllocatePort( Pdx->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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Pdx->FreePort( Pdx->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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Irp->IoStatus.Information = sizeof(BOOLEAN);
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Status = STATUS_SUCCESS;
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}
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break;
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case IOCTL_PAR_GET_READ_ADDRESS:
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DD((PCE)Pdx,DDT,"IOCTL_PAR_GET_READ_ADDRESS\n");
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(Pdx->ReverseInterfaceAddress)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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*((PUCHAR) Irp->AssociatedIrp.SystemBuffer) = Pdx->ReverseInterfaceAddress;
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Irp->IoStatus.Information = sizeof(Pdx->ReverseInterfaceAddress);
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Status = STATUS_SUCCESS;
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}
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break;
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case IOCTL_PAR_GET_WRITE_ADDRESS:
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DD((PCE)Pdx,DDT,"IOCTL_PAR_GET_WRITE_ADDRESS\n");
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(Pdx->ForwardInterfaceAddress)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
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*((PUCHAR) Irp->AssociatedIrp.SystemBuffer) = Pdx->ForwardInterfaceAddress;
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Irp->IoStatus.Information = sizeof(Pdx->ForwardInterfaceAddress);
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Status = STATUS_SUCCESS;
|
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}
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break;
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case IOCTL_PAR_SET_READ_ADDRESS:
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DD((PCE)Pdx,DDT," IOCTL_PAR_SET_READ_ADDRESS\n");
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if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(Pdx->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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}
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break;
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case IOCTL_PAR_SET_WRITE_ADDRESS:
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DD((PCE)Pdx,DDT," IOCTL_PAR_SET_WRITE_ADDRESS\n");
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if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(Pdx->ForwardInterfaceAddress)) {
|
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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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|
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case IOCTL_IEEE1284_GET_MODE:
|
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DD((PCE)Pdx,DDT,"IOCTL_IEEE1284_GET_MODE\n");
|
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|
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PARCLASS_NEGOTIATION_MASK)) {
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Status = STATUS_BUFFER_TOO_SMALL;
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} else {
|
||
|
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PPARCLASS_NEGOTIATION_MASK ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
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ppnmMask->usReadMask = arpReverse[Pdx->IdxReverseProtocol].Protocol;
|
||
ppnmMask->usWriteMask = afpForward[Pdx->IdxForwardProtocol].Protocol;
|
||
|
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Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
|
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Status = STATUS_SUCCESS;
|
||
}
|
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break;
|
||
|
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case IOCTL_PAR_GET_DEFAULT_MODES:
|
||
|
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DD((PCE)Pdx,DDT,"IOCTL_IEEE1284_GET_MODE\n");
|
||
|
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if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PARCLASS_NEGOTIATION_MASK)) {
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
} else {
|
||
|
||
PPARCLASS_NEGOTIATION_MASK ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
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ppnmMask->usReadMask = NONE;
|
||
ppnmMask->usWriteMask = CENTRONICS;
|
||
|
||
Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
|
||
Status = STATUS_SUCCESS;
|
||
}
|
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break;
|
||
|
||
case IOCTL_PAR_ECP_HOST_RECOVERY:
|
||
|
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DD((PCE)Pdx,DDT,"IOCTL_PAR_ECP_HOST_RECOVERY\n");
|
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{
|
||
BOOLEAN *isSupported;
|
||
|
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if( IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(BOOLEAN) ) {
|
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Status = STATUS_INVALID_PARAMETER;
|
||
} else {
|
||
isSupported = (BOOLEAN *)Irp->AssociatedIrp.SystemBuffer;
|
||
Pdx->bIsHostRecoverSupported = *isSupported;
|
||
Status = STATUS_SUCCESS;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_PING:
|
||
DD((PCE)Pdx,DDT,"IOCTL_PAR_PING\n");
|
||
// No Parms to check!
|
||
Status = STATUS_PENDING;
|
||
break;
|
||
|
||
case IOCTL_PAR_GET_DEVICE_CAPS:
|
||
DD((PCE)Pdx,DDT,"IOCTL_PAR_GET_DEVICE_CAPS\n");
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(Pdx->ProtocolModesSupported)) {
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
} else if (IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(Pdx->BadProtocolModes)) {
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
} else {
|
||
Status = STATUS_PENDING;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_IEEE1284_NEGOTIATE:
|
||
|
||
DD((PCE)Pdx,DDT,"IOCTL_IEEE1284_NEGOTIATE\n");
|
||
|
||
if ( IrpSp->Parameters.DeviceIoControl.InputBufferLength < sizeof(PARCLASS_NEGOTIATION_MASK) ||
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PARCLASS_NEGOTIATION_MASK) ) {
|
||
|
||
DD((PCE)Pdx,DDW,"ParDeviceControl: IOCTL_IEEE1284_NEGOTIATE STATUS_INVALID_PARAMETER\n");
|
||
Status = STATUS_INVALID_PARAMETER;
|
||
|
||
} else {
|
||
|
||
PPARCLASS_NEGOTIATION_MASK ppnmMask = (PPARCLASS_NEGOTIATION_MASK)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
if ((ppnmMask->usReadMask == arpReverse[Pdx->IdxReverseProtocol].Protocol) &&
|
||
(ppnmMask->usWriteMask == afpForward[Pdx->IdxForwardProtocol].Protocol)) {
|
||
Irp->IoStatus.Information = sizeof(PARCLASS_NEGOTIATION_MASK);
|
||
Status = STATUS_SUCCESS;
|
||
} else {
|
||
Status = STATUS_PENDING;
|
||
}
|
||
}
|
||
break;
|
||
|
||
default :
|
||
|
||
DD((PCE)Pdx,DDT,"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( &Pdx->WorkQueue ) &&
|
||
!KeReadStateSemaphore( &Pdx->RequestSemaphore )) ? TRUE : FALSE;
|
||
|
||
IoMarkIrpPending(Irp);
|
||
|
||
#pragma warning( push )
|
||
#pragma warning( disable : 4054 4055 )
|
||
IoSetCancelRoutine(Irp, ParCancelRequest);
|
||
#pragma warning( pop )
|
||
|
||
InsertTailList(&Pdx->WorkQueue, &Irp->Tail.Overlay.ListEntry);
|
||
IoReleaseCancelSpinLock(OldIrql);
|
||
if( needToSignalSemaphore ) {
|
||
KeReleaseSemaphore(&Pdx->RequestSemaphore, 0, 1, FALSE);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (Status != STATUS_PENDING) {
|
||
P4CompleteRequest( Irp, Status, Irp->IoStatus.Information );
|
||
}
|
||
|
||
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;
|
||
PPDO_EXTENSION Pdx;
|
||
KIRQL OldIrql;
|
||
PPARCLASS_INFORMATION pParclassInfo;
|
||
|
||
Irp->IoStatus.Information = 0;
|
||
|
||
IrpSp = IoGetCurrentIrpStackLocation(Irp);
|
||
Pdx = DeviceObject->DeviceExtension;
|
||
|
||
//
|
||
// bail out if a delete is pending for this device object
|
||
//
|
||
if(Pdx->DeviceStateFlags & PPT_DEVICE_DELETE_PENDING) {
|
||
P4CompleteRequest( Irp, STATUS_DELETE_PENDING, Irp->IoStatus.Information );
|
||
return STATUS_DELETE_PENDING;
|
||
}
|
||
|
||
//
|
||
// bail out if a remove is pending for our ParPort device object
|
||
//
|
||
if(Pdx->DeviceStateFlags & PAR_DEVICE_PORT_REMOVE_PENDING) {
|
||
P4CompleteRequest( Irp, STATUS_DELETE_PENDING, Irp->IoStatus.Information );
|
||
return STATUS_DELETE_PENDING;
|
||
}
|
||
|
||
//
|
||
// bail out if device has been removed
|
||
//
|
||
if(Pdx->DeviceStateFlags & (PPT_DEVICE_REMOVED|PPT_DEVICE_SURPRISE_REMOVED) ) {
|
||
P4CompleteRequest( Irp, STATUS_DEVICE_REMOVED, Irp->IoStatus.Information );
|
||
return STATUS_DEVICE_REMOVED;
|
||
}
|
||
|
||
switch (IrpSp->Parameters.DeviceIoControl.IoControlCode) {
|
||
|
||
case IOCTL_INTERNAL_PARCLASS_CONNECT:
|
||
|
||
DD((PCE)Pdx,DDT,"IOCTL_INTERNAL_PARCLASS_CONNECT\n");
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PARCLASS_INFORMATION)) {
|
||
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
|
||
} else {
|
||
PFDO_EXTENSION fdx = Pdx->Fdo->DeviceExtension;
|
||
PPARALLEL_PORT_INFORMATION portInfo = &fdx->PortInfo;
|
||
PPARALLEL_PNP_INFORMATION pnpInfo = &fdx->PnpInfo;
|
||
|
||
pParclassInfo = Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
pParclassInfo->ParclassContext = Pdx;
|
||
pParclassInfo->Controller = portInfo->Controller;
|
||
pParclassInfo->SpanOfController = portInfo->SpanOfController;
|
||
pParclassInfo->EcrController = pnpInfo->EcpController;
|
||
pParclassInfo->HardwareCapabilities = pnpInfo->HardwareCapabilities;
|
||
pParclassInfo->FifoDepth = pnpInfo->FifoDepth;
|
||
pParclassInfo->FifoWidth = pnpInfo->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_GET_PARPORT_FDO:
|
||
|
||
DD((PCE)Pdx,DDT,"IOCTL_INTERNAL_GET_PARPORT_FDO\n");
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength < sizeof(PDEVICE_OBJECT)) {
|
||
|
||
Status = STATUS_BUFFER_TOO_SMALL;
|
||
|
||
} else {
|
||
|
||
PDEVICE_OBJECT *pFdo = Irp->AssociatedIrp.SystemBuffer;
|
||
*pFdo = Pdx->Fdo;
|
||
Irp->IoStatus.Information = sizeof(PDEVICE_OBJECT);
|
||
|
||
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_LOCK_PORT_NO_SELECT:
|
||
case IOCTL_INTERNAL_UNLOCK_PORT_NO_DESELECT:
|
||
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
|
||
Pdx->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 :
|
||
|
||
DD((PCE)Pdx,DDW,"IOCTL_INTERNAL... default case - invalid parameter\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( &Pdx->WorkQueue ) &&
|
||
!KeReadStateSemaphore( &Pdx->RequestSemaphore )) ? TRUE : FALSE;
|
||
|
||
IoMarkIrpPending(Irp);
|
||
#pragma warning( push )
|
||
#pragma warning( disable : 4054 4055 )
|
||
IoSetCancelRoutine(Irp, ParCancelRequest);
|
||
#pragma warning( pop )
|
||
InsertTailList(&Pdx->WorkQueue, &Irp->Tail.Overlay.ListEntry);
|
||
IoReleaseCancelSpinLock(OldIrql);
|
||
if( needToSignalSemaphore ) {
|
||
KeReleaseSemaphore(&Pdx->RequestSemaphore, 0, 1, FALSE);
|
||
}
|
||
}
|
||
}
|
||
|
||
if (Status != STATUS_PENDING) {
|
||
P4CompleteRequest( Irp, Status, Irp->IoStatus.Information );
|
||
}
|
||
|
||
return Status;
|
||
}
|
||
|
||
VOID
|
||
ParDeviceIo(
|
||
IN PPDO_EXTENSION Pdx
|
||
)
|
||
/*++
|
||
|
||
Routine Description:
|
||
|
||
This routine implements a DEVICE_IOCTL request with the extension's current irp.
|
||
|
||
Arguments:
|
||
|
||
Pdx - Supplies the device extension.
|
||
|
||
Return Value:
|
||
|
||
None.
|
||
|
||
--*/
|
||
{
|
||
|
||
PIRP Irp;
|
||
PIO_STACK_LOCATION IrpSp;
|
||
ULONG IdLength;
|
||
NTSTATUS NtStatus;
|
||
UCHAR Status;
|
||
UCHAR Control;
|
||
ULONG ioControlCode;
|
||
|
||
Irp = Pdx->CurrentOpIrp;
|
||
IrpSp = IoGetCurrentIrpStackLocation(Irp);
|
||
|
||
ioControlCode = IrpSp->Parameters.DeviceIoControl.IoControlCode;
|
||
|
||
switch( ioControlCode ) {
|
||
|
||
case IOCTL_PAR_SET_INFORMATION :
|
||
{
|
||
|
||
Status = ParInitializeDevice(Pdx);
|
||
|
||
if (!PAR_OK(Status)) {
|
||
ParNotInitError(Pdx, 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(Pdx->Controller);
|
||
Control = GetControl(Pdx->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(Pdx,
|
||
Irp->AssociatedIrp.SystemBuffer,
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength,
|
||
&IdLength, TRUE);
|
||
|
||
Irp->IoStatus.Status = NtStatus;
|
||
|
||
if (NT_SUCCESS(NtStatus)) {
|
||
Irp->IoStatus.Information = IdLength + sizeof(CHAR);
|
||
} else {
|
||
Irp->IoStatus.Information = 0;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_QUERY_DEVICE_ID :
|
||
|
||
// We always read the Device Id in Nibble Mode.
|
||
NtStatus = SppQueryDeviceId(Pdx,
|
||
Irp->AssociatedIrp.SystemBuffer,
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength,
|
||
&IdLength, FALSE);
|
||
|
||
Irp->IoStatus.Status = NtStatus;
|
||
|
||
if( NT_SUCCESS( NtStatus ) ) {
|
||
DD((PCE)Pdx,DDT,"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) {
|
||
DD((PCE)Pdx,DDT,"IOCTL_PAR_QUERY_ID - FAIL - BUFFER_TOO_SMALL - supplied= %d, required=%d\n",
|
||
IrpSp->Parameters.DeviceIoControl.OutputBufferLength, IdLength);
|
||
Irp->IoStatus.Information = 0;
|
||
} else {
|
||
DD((PCE)Pdx,DDT,"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(Pdx, NULL, 0, &IdLength, FALSE);
|
||
|
||
if (NtStatus == STATUS_BUFFER_TOO_SMALL) {
|
||
|
||
DD((PCE)Pdx,DDT,"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(Pdx);
|
||
DD((PCE)Pdx,DDT,"ParDeviceIo:IOCTL_PAR_PING\n");
|
||
Irp->IoStatus.Status = NtStatus;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_DISCONNECT_IDLE :
|
||
|
||
if ((Pdx->Connected) &&
|
||
(afpForward[Pdx->IdxForwardProtocol].fnDisconnect)) {
|
||
|
||
DD((PCE)Pdx,DDT,"ParDeviceIo:IOCTL_INTERNAL_DISCONNECT_IDLE: Calling afpForward.fnDisconnect\n");
|
||
afpForward[Pdx->IdxForwardProtocol].fnDisconnect (Pdx);
|
||
}
|
||
|
||
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(Pdx);
|
||
Irp->IoStatus.Status = IeeeNegotiateMode(Pdx, ppnmMask->usReadMask, ppnmMask->usWriteMask);
|
||
|
||
if (IrpSp->Parameters.DeviceIoControl.OutputBufferLength >= sizeof(PARCLASS_NEGOTIATION_MASK)) {
|
||
DD((PCE)Pdx,DDT, "ParDeviceIo: IOCTL_IEEE1284_NEGOTIATE Passed.\n");
|
||
ppnmMask->usReadMask = arpReverse[Pdx->IdxReverseProtocol].Protocol;
|
||
ppnmMask->usWriteMask = afpForward[Pdx->IdxForwardProtocol].Protocol;
|
||
Irp->IoStatus.Information = sizeof (PARCLASS_NEGOTIATION_MASK);
|
||
} else {
|
||
DD((PCE)Pdx,DDT, "ParDeviceIo: IOCTL_IEEE1284_NEGOTIATE failed.\n");
|
||
Irp->IoStatus.Information = 0;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case IOCTL_PAR_GET_DEVICE_CAPS :
|
||
|
||
Pdx->BadProtocolModes = *((USHORT *) Irp->AssociatedIrp.SystemBuffer);
|
||
IeeeDetermineSupportedProtocols(Pdx);
|
||
*((USHORT *) Irp->AssociatedIrp.SystemBuffer) = Pdx->ProtocolModesSupported;
|
||
Irp->IoStatus.Information = sizeof(Pdx->ProtocolModesSupported);
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
break;
|
||
|
||
case IOCTL_PAR_SET_READ_ADDRESS:
|
||
{
|
||
PUCHAR pAddress = (PUCHAR)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
if (Pdx->ReverseInterfaceAddress != *pAddress) {
|
||
|
||
Pdx->ReverseInterfaceAddress = *pAddress;
|
||
Pdx->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 (Pdx->ForwardInterfaceAddress != *pAddress) {
|
||
|
||
Pdx->ForwardInterfaceAddress = *pAddress;
|
||
|
||
if (Pdx->Connected) {
|
||
if (afpForward[Pdx->IdxForwardProtocol].fnSetInterfaceAddress) {
|
||
|
||
if (Pdx->CurrentPhase != PHASE_FORWARD_IDLE &&
|
||
Pdx->CurrentPhase != PHASE_FORWARD_XFER) {
|
||
NtStatus = ParReverseToForward(Pdx);
|
||
}
|
||
|
||
if (NT_SUCCESS(NtStatus)) {
|
||
NtStatus = afpForward[Pdx->IdxForwardProtocol].fnSetInterfaceAddress(
|
||
Pdx,
|
||
Pdx->ForwardInterfaceAddress
|
||
);
|
||
}
|
||
|
||
if (NT_SUCCESS(NtStatus)) {
|
||
Pdx->SetForwardAddress = FALSE;
|
||
Pdx->SetReverseAddress = FALSE;
|
||
Pdx->ReverseInterfaceAddress = *pAddress;
|
||
} else {
|
||
Pdx->SetForwardAddress = TRUE;
|
||
DD((PCE)Pdx,DDE,"ParDeviceIo: IOCTL_PAR_SET_WRITE_ADDRESS Failed\n");
|
||
}
|
||
} else {
|
||
DD((PCE)Pdx,DDE, "ParDeviceIo: Someone called IOCTL_PAR_SET_WRITE_ADDRESS.\n");
|
||
DD((PCE)Pdx,DDE, "ParDeviceIo: You don't have a fnSetInterfaceAddress.\n");
|
||
DD((PCE)Pdx,DDE, "ParDeviceIo: Either IEEE1284.c has wrong info or your caller is in error!\n");
|
||
NtStatus = STATUS_UNSUCCESSFUL;
|
||
}
|
||
} else {
|
||
Pdx->SetForwardAddress = TRUE;
|
||
}
|
||
}
|
||
|
||
Irp->IoStatus.Information = 0;
|
||
Irp->IoStatus.Status = NtStatus;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_LOCK_PORT :
|
||
|
||
ParpIoctlThreadLockPort(Pdx);
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_UNLOCK_PORT :
|
||
|
||
ParpIoctlThreadUnlockPort(Pdx);
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_LOCK_PORT_NO_SELECT:
|
||
|
||
DD((PCE)Pdx,DDT, "ParDeviceIo - IOCTL_INTERNAL_LOCK_PORT_NO_SELECT\n");
|
||
Pdx->AllocatedByLockPort = TRUE;
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_UNLOCK_PORT_NO_DESELECT:
|
||
|
||
DD((PCE)Pdx,DDT, "ParDeviceIo - IOCTL_INTERNAL_UNLOCK_PORT_NO_DESELECT\n");
|
||
Pdx->AllocatedByLockPort = FALSE;
|
||
PptAssert(!Pdx->Connected && !Pdx->AllocatedByLockPort);
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
|
||
case IOCTL_SERIAL_SET_TIMEOUTS:
|
||
{
|
||
PSERIAL_TIMEOUTS ptoNew = Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
//
|
||
// The only other thing let through is setting
|
||
// the timer start.
|
||
//
|
||
|
||
Pdx->TimerStart = ptoNew->WriteTotalTimeoutConstant / 1000;
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
}
|
||
break;
|
||
|
||
case IOCTL_INTERNAL_PARDOT3_CONNECT:
|
||
DD((PCE)Pdx,DDT,"IOCTL_INTERNAL_PARDOT3_CONNECT - Dispatch\n");
|
||
Irp->IoStatus.Status = ParDot3Connect(Pdx);
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
case IOCTL_INTERNAL_PARDOT3_DISCONNECT:
|
||
DD((PCE)Pdx,DDT,"IOCTL_INTERNAL_PARDOT3_DISCONNECT - Dispatch\n");
|
||
Irp->IoStatus.Status = ParDot3Disconnect(Pdx);
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
case IOCTL_INTERNAL_PARDOT3_SIGNAL:
|
||
if( Pdx->IdxReverseProtocol != NIBBLE_MODE ) {
|
||
PKEVENT Event;// = (PKEVENT)Irp->AssociatedIrp.SystemBuffer;
|
||
|
||
RtlCopyMemory(&Event, Irp->AssociatedIrp.SystemBuffer, sizeof(PKEVENT));
|
||
|
||
ASSERT_EVENT(Event);
|
||
|
||
DD((PCE)Pdx,DDT,"IOCTL_INTERNAL_PARDOT3_SIGNAL - Dispatch. Event [%x]\n", Event);
|
||
|
||
Pdx->P12843DL.Event = Event;
|
||
Pdx->P12843DL.bEventActive = TRUE;
|
||
Irp->IoStatus.Status = STATUS_SUCCESS;
|
||
} else {
|
||
// don't use signalling in NIBBLE mode - rely on dot4 polling
|
||
Irp->IoStatus.Status = STATUS_UNSUCCESSFUL;
|
||
}
|
||
Irp->IoStatus.Information = 0;
|
||
break;
|
||
case IOCTL_INTERNAL_PARDOT3_RESET:
|
||
DD((PCE)Pdx,DDT,"IOCTL_INTERNAL_PARDOT3_RESET - Dispatch\n");
|
||
if (Pdx->P12843DL.fnReset)
|
||
Irp->IoStatus.Status = ((PDOT3_RESET_ROUTINE) (Pdx->P12843DL.fnReset))(Pdx);
|
||
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;
|
||
}
|