627 lines
14 KiB
C
627 lines
14 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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read.c
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Abstract:
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This module contains the code that is very specific to initialization
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and unload operations in the irenum driver
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Author:
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Brian Lieuallen, 7-13-2000
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Environment:
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Kernel mode
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Revision History :
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--*/
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#include "internal.h"
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#include <ntddmodm.h>
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#include "ircomm.h"
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VOID
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LockedMemoryCopy(
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PKSPIN_LOCK Lock,
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PVOID Destination,
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PVOID Source,
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ULONG Length
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)
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{
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KIRQL OldIrql;
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KeAcquireSpinLock(
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Lock,
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&OldIrql
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);
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RtlCopyMemory(
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Destination,
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Source,
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Length
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);
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KeReleaseSpinLock(
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Lock,
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OldIrql
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);
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return;
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}
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VOID
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LockedZeroMemory(
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PKSPIN_LOCK Lock,
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PVOID Destination,
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ULONG Length
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)
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{
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KIRQL OldIrql;
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KeAcquireSpinLock(
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Lock,
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&OldIrql
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);
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RtlZeroMemory(
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Destination,
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Length
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);
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KeReleaseSpinLock(
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Lock,
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OldIrql
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);
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return;
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}
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NTSTATUS
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IrCommDeviceControl(
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PDEVICE_OBJECT DeviceObject,
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PIRP Irp
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)
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{
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PFDO_DEVICE_EXTENSION DeviceExtension=(PFDO_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
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PIO_STACK_LOCATION IrpSp=IoGetCurrentIrpStackLocation(Irp);
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NTSTATUS Status=STATUS_SUCCESS;
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PUCHAR SystemBuffer = Irp->AssociatedIrp.SystemBuffer;
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ULONG InputLength = IrpSp->Parameters.DeviceIoControl.InputBufferLength;
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ULONG OutputLength = IrpSp->Parameters.DeviceIoControl.OutputBufferLength;
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ULONG SizeNeeded;
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Irp->IoStatus.Information=0;
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D_TRACE(DbgPrint("IRCOMM: IrCommDeviceControl\n");)
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if (DeviceExtension->Removing) {
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//
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// the device has been removed, no more irps
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//
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Irp->IoStatus.Status=STATUS_DEVICE_REMOVED;
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IoCompleteRequest(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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case IOCTL_SERIAL_SET_TIMEOUTS:
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if (InputLength >= sizeof(SERIAL_TIMEOUTS)) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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&DeviceExtension->TimeOuts,
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SystemBuffer,
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sizeof(SERIAL_TIMEOUTS)
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);
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_TIMEOUTS:
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if (OutputLength >= sizeof(SERIAL_TIMEOUTS) ) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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SystemBuffer,
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&DeviceExtension->TimeOuts,
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sizeof(SERIAL_TIMEOUTS)
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);
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Irp->IoStatus.Information=sizeof(SERIAL_TIMEOUTS);
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_SET_QUEUE_SIZE:
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if (InputLength >= sizeof( SERIAL_QUEUE_SIZE)) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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&DeviceExtension->QueueSizes,
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SystemBuffer,
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sizeof( SERIAL_QUEUE_SIZE)
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);
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_HANDFLOW:
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SizeNeeded=sizeof(SERIAL_HANDFLOW);
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if (OutputLength >= SizeNeeded) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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SystemBuffer,
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&DeviceExtension->HandFlow,
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SizeNeeded
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);
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Irp->IoStatus.Information=SizeNeeded;
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_SET_HANDFLOW:
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SizeNeeded=sizeof(SERIAL_HANDFLOW);
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if (InputLength >= SizeNeeded) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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&DeviceExtension->HandFlow,
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SystemBuffer,
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SizeNeeded
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);
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_BAUD_RATE:
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if (OutputLength >= sizeof(ULONG) ) {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_SET_BAUD_RATE:
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if (InputLength >= sizeof(ULONG) ) {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_LINE_CONTROL:
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if (OutputLength >= sizeof(SERIAL_LINE_CONTROL)) {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_SET_LINE_CONTROL:
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if (InputLength >= sizeof(SERIAL_LINE_CONTROL)) {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_CHARS:
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if (OutputLength >= sizeof(SERIAL_CHARS)) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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SystemBuffer,
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&DeviceExtension->SerialChars,
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sizeof(SERIAL_CHARS)
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);
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Irp->IoStatus.Information=sizeof(SERIAL_CHARS);
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_SET_CHARS:
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SizeNeeded=sizeof(SERIAL_CHARS);
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if (InputLength >= SizeNeeded) {
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LockedMemoryCopy(
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&DeviceExtension->SpinLock,
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&DeviceExtension->SerialChars,
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SystemBuffer,
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SizeNeeded
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);
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_WAIT_MASK:
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case IOCTL_SERIAL_SET_WAIT_MASK:
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case IOCTL_SERIAL_WAIT_ON_MASK:
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IoMarkIrpPending(Irp);
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Irp->IoStatus.Information=0;
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QueuePacket(&DeviceExtension->Mask.Queue,Irp,FALSE);
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return STATUS_PENDING;
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case IOCTL_SERIAL_GET_MODEMSTATUS:
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if (OutputLength >= sizeof(ULONG)) {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_PURGE:
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if (InputLength >= sizeof(ULONG)) {
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if (*(PULONG)SystemBuffer & SERIAL_PURGE_TXABORT) {
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//
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// we only want to flush the write irps in the queue, not any ioctl's
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//
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FlushQueuedPackets(&DeviceExtension->Write.Queue,IRP_MJ_WRITE);
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AbortSend(DeviceExtension->ConnectionHandle);
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}
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if (*(PULONG)SystemBuffer & SERIAL_PURGE_RXABORT) {
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FlushQueuedPackets(&DeviceExtension->Read.Queue,FLUSH_ALL_IRPS);
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ReadPurge(DeviceExtension,READ_PURGE_ABORT_IRP);
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}
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if (*(PULONG)SystemBuffer & SERIAL_PURGE_TXCLEAR) {
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}
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if (*(PULONG)SystemBuffer & SERIAL_PURGE_RXCLEAR) {
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ReadPurge(DeviceExtension,READ_PURGE_CLEAR_BUFFER);
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}
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_SET_DTR:
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case IOCTL_SERIAL_CLR_DTR:
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DeviceExtension->Read.DtrState= (IrpSp->Parameters.DeviceIoControl.IoControlCode == IOCTL_SERIAL_SET_DTR);
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case IOCTL_SERIAL_SET_RTS:
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case IOCTL_SERIAL_CLR_RTS: {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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case IOCTL_SERIAL_GET_DTRRTS:
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SizeNeeded=sizeof(ULONG);
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if (OutputLength >= SizeNeeded) {
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IoMarkIrpPending(Irp);
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QueuePacket(&DeviceExtension->Uart.Queue,Irp,FALSE);
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return STATUS_PENDING;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_COMMSTATUS:
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SizeNeeded=sizeof(SERIAL_STATUS);
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if (OutputLength >= SizeNeeded) {
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RtlZeroMemory(
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SystemBuffer,
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SizeNeeded
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);
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LockedMemoryCopy(
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&DeviceExtension->Read.ReadLock,
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&((PSERIAL_STATUS)SystemBuffer)->AmountInInQueue,
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&DeviceExtension->Read.BytesInBuffer,
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sizeof(DeviceExtension->Read.BytesInBuffer)
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);
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Irp->IoStatus.Information=SizeNeeded;
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break;
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}
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Status=STATUS_INVALID_PARAMETER;
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break;
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case IOCTL_SERIAL_GET_STATS: {
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PSERIALPERF_STATS Stats=(PSERIALPERF_STATS)SystemBuffer;
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SizeNeeded=sizeof(SERIAL_STATUS);
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||
|
|
if (OutputLength >= SizeNeeded) {
|
||
|
|
|
||
|
|
RtlZeroMemory(
|
||
|
|
Stats,
|
||
|
|
OutputLength
|
||
|
|
);
|
||
|
|
|
||
|
|
Stats->TransmittedCount = DeviceExtension->Write.BytesWritten;
|
||
|
|
Stats->ReceivedCount = DeviceExtension->Read.BytesRead;
|
||
|
|
|
||
|
|
Irp->IoStatus.Information=SizeNeeded;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
Status=STATUS_INVALID_PARAMETER;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
case IOCTL_SERIAL_CLEAR_STATS:
|
||
|
|
|
||
|
|
DeviceExtension->Write.BytesWritten=0;
|
||
|
|
DeviceExtension->Read.BytesRead=0;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
|
||
|
|
case IOCTL_SERIAL_GET_PROPERTIES: {
|
||
|
|
|
||
|
|
PSERIAL_COMMPROP SerialProps=(PSERIAL_COMMPROP)SystemBuffer;
|
||
|
|
|
||
|
|
SizeNeeded=FIELD_OFFSET(SERIAL_COMMPROP,ProvChar);
|
||
|
|
|
||
|
|
if (OutputLength >= SizeNeeded) {
|
||
|
|
|
||
|
|
RtlZeroMemory(
|
||
|
|
SerialProps,
|
||
|
|
OutputLength
|
||
|
|
);
|
||
|
|
|
||
|
|
SerialProps->PacketLength=(USHORT)SizeNeeded;
|
||
|
|
SerialProps->PacketVersion=1;
|
||
|
|
SerialProps->ServiceMask=SERIAL_SP_SERIALCOMM;
|
||
|
|
SerialProps->MaxBaud=115200;
|
||
|
|
|
||
|
|
SerialProps->ProvSubType=SERIAL_SP_RS232;
|
||
|
|
SerialProps->ProvCapabilities=SERIAL_PCF_DTRDSR | SERIAL_PCF_RTSCTS | SERIAL_PCF_CD | SERIAL_PCF_TOTALTIMEOUTS | SERIAL_PCF_INTTIMEOUTS;
|
||
|
|
SerialProps->SettableParams=SERIAL_SP_PARITY | SERIAL_SP_BAUD | SERIAL_SP_DATABITS | SERIAL_SP_STOPBITS | SERIAL_SP_HANDSHAKING | SERIAL_SP_CARRIER_DETECT;
|
||
|
|
SerialProps->SettableBaud=SERIAL_BAUD_9600 |
|
||
|
|
SERIAL_BAUD_14400 |
|
||
|
|
SERIAL_BAUD_19200 |
|
||
|
|
SERIAL_BAUD_38400 |
|
||
|
|
SERIAL_BAUD_56K |
|
||
|
|
SERIAL_BAUD_128K |
|
||
|
|
SERIAL_BAUD_115200 |
|
||
|
|
SERIAL_BAUD_57600 |
|
||
|
|
SERIAL_BAUD_USER;
|
||
|
|
|
||
|
|
SerialProps->SettableData=SERIAL_DATABITS_7 | SERIAL_DATABITS_8;
|
||
|
|
|
||
|
|
SerialProps->SettableStopParity = SERIAL_STOPBITS_10 | SERIAL_PARITY_NONE | SERIAL_PARITY_EVEN | SERIAL_PARITY_ODD;
|
||
|
|
|
||
|
|
Irp->IoStatus.Information=SizeNeeded;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
Status=STATUS_INVALID_PARAMETER;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
case IOCTL_SERIAL_CONFIG_SIZE:
|
||
|
|
|
||
|
|
SizeNeeded=sizeof(ULONG);
|
||
|
|
|
||
|
|
if (OutputLength >= SizeNeeded) {
|
||
|
|
|
||
|
|
*(PULONG)SystemBuffer=0;
|
||
|
|
|
||
|
|
Irp->IoStatus.Information=SizeNeeded;
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
Status=STATUS_INVALID_PARAMETER;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IOCTL_MODEM_CHECK_FOR_MODEM:
|
||
|
|
|
||
|
|
Status=STATUS_INVALID_DEVICE_REQUEST;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
DbgPrint("IRCOMM: unhandled ioctl %d \n",(IrpSp->Parameters.DeviceIoControl.IoControlCode >> 2) & 0x3f);
|
||
|
|
|
||
|
|
Status=STATUS_INVALID_DEVICE_REQUEST;
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
IoMarkIrpPending(Irp);
|
||
|
|
|
||
|
|
Irp->IoStatus.Status=Status;
|
||
|
|
|
||
|
|
#if DBG
|
||
|
|
if (Status == STATUS_INVALID_PARAMETER) {
|
||
|
|
|
||
|
|
D_ERROR(DbgPrint("IRCOMM: ioctl irp %d bad param, in size=%d, out size=%d\n",
|
||
|
|
IrpSp->Parameters.DeviceIoControl.IoControlCode,
|
||
|
|
InputLength,
|
||
|
|
OutputLength
|
||
|
|
);)
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
IoCompleteRequest(Irp,IO_NO_INCREMENT);
|
||
|
|
|
||
|
|
return STATUS_PENDING;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
VOID
|
||
|
|
UartComplete(
|
||
|
|
PVOID Context,
|
||
|
|
PIRP Irp
|
||
|
|
)
|
||
|
|
|
||
|
|
{
|
||
|
|
PFDO_DEVICE_EXTENSION DeviceExtension=(PFDO_DEVICE_EXTENSION)Context;
|
||
|
|
|
||
|
|
IoCompleteRequest(Irp,IO_NO_INCREMENT);
|
||
|
|
|
||
|
|
StartNextPacket(&DeviceExtension->Uart.Queue);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
UartStartRoutine(
|
||
|
|
PVOID Context,
|
||
|
|
PIRP Irp
|
||
|
|
|
||
|
|
)
|
||
|
|
|
||
|
|
{
|
||
|
|
|
||
|
|
PFDO_DEVICE_EXTENSION DeviceExtension=(PFDO_DEVICE_EXTENSION)Context;
|
||
|
|
PIO_STACK_LOCATION IrpSp=IoGetCurrentIrpStackLocation(Irp);
|
||
|
|
|
||
|
|
AccessUartState(
|
||
|
|
DeviceExtension->ConnectionHandle,
|
||
|
|
Irp,
|
||
|
|
UartComplete,
|
||
|
|
DeviceExtension
|
||
|
|
);
|
||
|
|
|
||
|
|
return;
|
||
|
|
|
||
|
|
}
|