mirror of
https://github.com/reactos/reactos.git
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248 lines
6.1 KiB
C
248 lines
6.1 KiB
C
/*
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* PROJECT: ReactOS Serial mouse driver
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: drivers/input/sermouse/detect.c
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* PURPOSE: Detect serial mouse type
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* PROGRAMMERS: Copyright Jason Filby (jasonfilby@yahoo.com)
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Copyright Filip Navara (xnavara@volny.cz)
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Copyright 2005-2006 Hervé Poussineau (hpoussin@reactos.org)
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*/
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#include "sermouse.h"
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#include <ntifs.h>
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#include <debug.h>
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/* Most of this file is ripped from reactos/drivers/bus/serenum/detect.c */
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static NTSTATUS
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DeviceIoControl(
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IN PDEVICE_OBJECT DeviceObject,
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IN ULONG CtlCode,
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IN PVOID InputBuffer OPTIONAL,
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IN SIZE_T InputBufferSize,
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IN OUT PVOID OutputBuffer OPTIONAL,
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IN OUT PSIZE_T OutputBufferSize)
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{
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KEVENT Event;
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PIRP Irp;
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IO_STATUS_BLOCK IoStatus;
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NTSTATUS Status;
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KeInitializeEvent (&Event, NotificationEvent, FALSE);
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Irp = IoBuildDeviceIoControlRequest(CtlCode,
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DeviceObject,
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InputBuffer,
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(ULONG)InputBufferSize,
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OutputBuffer,
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(OutputBufferSize) ? (ULONG)*OutputBufferSize : 0,
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FALSE,
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&Event,
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&IoStatus);
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if (Irp == NULL)
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{
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WARN_(SERMOUSE, "IoBuildDeviceIoControlRequest() failed\n");
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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Status = IoCallDriver(DeviceObject, Irp);
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if (Status == STATUS_PENDING)
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{
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INFO_(SERMOUSE, "Operation pending\n");
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KeWaitForSingleObject(&Event, Suspended, KernelMode, FALSE, NULL);
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Status = IoStatus.Status;
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}
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if (OutputBufferSize)
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{
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*OutputBufferSize = (SIZE_T)IoStatus.Information;
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}
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return Status;
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}
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static NTSTATUS
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ReadBytes(
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IN PDEVICE_OBJECT LowerDevice,
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OUT PUCHAR Buffer,
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IN ULONG BufferSize,
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OUT PULONG_PTR FilledBytes)
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{
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PIRP Irp;
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IO_STATUS_BLOCK ioStatus;
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KEVENT event;
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LARGE_INTEGER zero;
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NTSTATUS Status;
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KeInitializeEvent(&event, NotificationEvent, FALSE);
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zero.QuadPart = 0;
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Irp = IoBuildSynchronousFsdRequest(
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IRP_MJ_READ,
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LowerDevice,
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Buffer, BufferSize,
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&zero,
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&event,
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&ioStatus);
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if (!Irp)
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return FALSE;
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Status = IoCallDriver(LowerDevice, Irp);
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if (Status == STATUS_PENDING)
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{
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KeWaitForSingleObject(&event, Suspended, KernelMode, FALSE, NULL);
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Status = ioStatus.Status;
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}
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INFO_(SERMOUSE, "Bytes received: %lu/%lu\n",
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ioStatus.Information, BufferSize);
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*FilledBytes = ioStatus.Information;
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return Status;
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}
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static NTSTATUS
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Wait(
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IN ULONG milliseconds)
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{
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KTIMER Timer;
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LARGE_INTEGER DueTime;
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DueTime.QuadPart = milliseconds * -10;
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KeInitializeTimer(&Timer);
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KeSetTimer(&Timer, DueTime, NULL);
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return KeWaitForSingleObject(&Timer, Executive, KernelMode, FALSE, NULL);
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}
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SERMOUSE_MOUSE_TYPE
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SermouseDetectLegacyDevice(
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IN PDEVICE_OBJECT LowerDevice)
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{
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HANDLE Handle;
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ULONG Fcr, Mcr;
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ULONG BaudRate;
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ULONG Command;
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SERIAL_TIMEOUTS Timeouts;
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SERIAL_LINE_CONTROL LCR;
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ULONG_PTR i, Count = 0;
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UCHAR Buffer[16];
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SERMOUSE_MOUSE_TYPE MouseType = mtNone;
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NTSTATUS Status;
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TRACE_(SERMOUSE, "SermouseDetectLegacyDevice(LowerDevice %p)\n", LowerDevice);
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RtlZeroMemory(Buffer, sizeof(Buffer));
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/* Open port */
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Status = ObOpenObjectByPointer(
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LowerDevice,
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OBJ_KERNEL_HANDLE,
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NULL,
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0,
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NULL,
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KernelMode,
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&Handle);
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if (!NT_SUCCESS(Status)) return mtNone;
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/* Reset UART */
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TRACE_(SERMOUSE, "Reset UART\n");
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Mcr = 0; /* MCR: DTR/RTS/OUT2 off */
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_MODEM_CONTROL,
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&Mcr, sizeof(Mcr), NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Set communications parameters */
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TRACE_(SERMOUSE, "Set communications parameters\n");
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/* DLAB off */
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Fcr = 0;
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_FIFO_CONTROL,
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&Fcr, sizeof(Fcr), NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Set serial port speed */
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BaudRate = 1200;
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_BAUD_RATE,
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&BaudRate, sizeof(BaudRate), NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Set LCR */
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LCR.WordLength = 7;
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LCR.Parity = NO_PARITY;
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LCR.StopBits = STOP_BITS_2;
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_LINE_CONTROL,
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&LCR, sizeof(LCR), NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Flush receive buffer */
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TRACE_(SERMOUSE, "Flush receive buffer\n");
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Command = SERIAL_PURGE_RXCLEAR;
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_MODEM_CONTROL,
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&Command, sizeof(Command), NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Wait 100 ms */
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Wait(100);
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/* Enable DTR/RTS */
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TRACE_(SERMOUSE, "Enable DTR/RTS\n");
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_DTR,
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NULL, 0, NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_RTS,
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NULL, 0, NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Set timeout to 500 microseconds */
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TRACE_(SERMOUSE, "Set timeout to 500 microseconds\n");
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Timeouts.ReadIntervalTimeout = 100;
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Timeouts.ReadTotalTimeoutMultiplier = 0;
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Timeouts.ReadTotalTimeoutConstant = 500;
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Timeouts.WriteTotalTimeoutMultiplier = Timeouts.WriteTotalTimeoutConstant = 0;
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Status = DeviceIoControl(LowerDevice, IOCTL_SERIAL_SET_TIMEOUTS,
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&Timeouts, sizeof(Timeouts), NULL, NULL);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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/* Fill the read buffer */
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TRACE_(SERMOUSE, "Fill the read buffer\n");
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Status = ReadBytes(LowerDevice, Buffer, sizeof(Buffer)/sizeof(Buffer[0]), &Count);
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if (!NT_SUCCESS(Status)) goto ByeBye;
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for (i = 0; i < Count; i++)
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{
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if (Buffer[i] == 'B')
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{
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/* Sign for Microsoft Ballpoint */
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ERR_(SERMOUSE, "Microsoft Ballpoint device detected. THIS DEVICE IS NOT YET SUPPORTED");
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MouseType = mtNone;
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goto ByeBye;
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}
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else if (Buffer[i] == 'M')
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{
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/* Sign for Microsoft Mouse protocol followed by button specifier */
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if (i == sizeof(Buffer) - 1)
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{
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/* Overflow Error */
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goto ByeBye;
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}
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switch (Buffer[i + 1])
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{
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case '3':
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INFO_(SERMOUSE, "Microsoft Mouse with 3-buttons detected\n");
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MouseType = mtLogitech;
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break;
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case 'Z':
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INFO_(SERMOUSE, "Microsoft Wheel Mouse detected\n");
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MouseType = mtWheelZ;
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break;
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default:
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INFO_(SERMOUSE, "Microsoft Mouse with 2-buttons detected\n");
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MouseType = mtMicrosoft;
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break;
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}
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goto ByeBye;
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}
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}
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ByeBye:
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/* Close port */
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if (Handle)
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ZwClose(Handle);
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return MouseType;
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}
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