kdserial.c

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/*
 * PROJECT:     ReactOS KDBG Kernel Debugger Terminal Driver
 * LICENSE:     GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
 * PURPOSE:     Serial driver
 * COPYRIGHT:   Copyright 2004 Art Yerkes <ayerkes@speakeasy.net>
 *              Copyright 2005 Gregor Anich <blight@blight.eu.org>
 */
 
/* INCLUDES ******************************************************************/
 
#include <ntoskrnl.h>
#include "kd.h"
 
/* FUNCTIONS *****************************************************************/
 
VOID
KdbpSendCommandSerial(
    _In_ PCSTR Command)
{
    while (*Command)
        KdPortPutByteEx(&SerialPortInfo, *Command++);
}
 
CHAR
KdbpTryGetCharSerial(
    _In_ ULONG Retry)
{
    CHAR Result = -1;
 
    if (Retry == 0)
        while (!KdPortGetByteEx(&SerialPortInfo, (PUCHAR)&Result));
    else
        while (!KdPortGetByteEx(&SerialPortInfo, (PUCHAR)&Result) && Retry-- > 0);
 
    return Result;
}
 
/* EOF */