148 lines
2.2 KiB
C
148 lines
2.2 KiB
C
/*++
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Copyright (c) 1993 Microsoft Corporation
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Copyright (c) 1993 Logitech Inc.
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Module Name:
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debug.c
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Abstract:
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Debugging support routines.
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Environment:
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Kernel mode only.
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Notes:
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Revision History:
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--*/
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#include "stdarg.h"
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#include "stdio.h"
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#include "string.h"
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#include "ntddk.h"
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#include "debug.h"
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#if DBG
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//
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// Declare the global debug flag for this driver.
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//
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ULONG SerialMouseDebug = 0;
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//
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// Undocumented call (prototype).
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// Use it to avoid timing problems and conflicts with the serial device.
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// This call is valid only during initialization and before the display
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// driver takes ownership of the display.
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//
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VOID HalDisplayString(PSZ Buffer);
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static ULONG DebugOutput = DBG_SERIAL;
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VOID
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_SerMouSetDebugOutput(
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IN ULONG Destination
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)
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/*++
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Routine Description:
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Set the destination of the debugging string. The options are:
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DBG_COLOR: Main computer screen.
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DBG_SERIAL: Serial debugger port
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Note: The output to the DBG_COLOR screen can be used only during
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initilialization before we switch to graphical mode.
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Arguments:
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Destination - The debugging string destination.
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Return Value:
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None.
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--*/
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{
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DebugOutput = Destination;
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return;
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}
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int
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_SerMouGetDebugOutput(
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VOID
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)
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/*++
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Routine Description:
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Get the current debugger string output destination.
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Arguments:
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None.
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Return Value:
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Current debugging output destination.
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--*/
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{
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return DebugOutput;
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}
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VOID
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SerMouDebugPrint(
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ULONG DebugPrintLevel,
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PCSZ DebugMessage,
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...
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)
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/*++
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Routine Description:
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Debug print routine.
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Arguments:
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Debug print level between 0 and 3, with 3 being the most verbose.
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Return Value:
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None.
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--*/
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{
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va_list ap;
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va_start(ap, DebugMessage);
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if (DebugPrintLevel <= SerialMouseDebug) {
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CHAR buffer[128];
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(VOID) vsprintf(buffer, DebugMessage, ap);
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if (DebugOutput & DBG_SERIAL) {
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DbgPrint(buffer);
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}
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if (DebugOutput & DBG_COLOR) {
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HalDisplayString(buffer);
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}
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}
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va_end(ap);
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}
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#endif
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