reactos/ntoskrnl/kd/i386/kdbg.c
Hervé Poussineau 453edbb5da [NTOS:KD] Implement empty versions of KdDebuggerInitialize0/KdSendPacket/KdReceivePacket
Move KdDebuggerInitialize1 to common code.
Add #defines to local names to prevent clashes with kdcom.dll
2020-11-16 08:55:02 +01:00

147 lines
3.9 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/kd/i386/kdbg.c
* PURPOSE: Serial i/o functions for the kernel debugger.
* PROGRAMMER: Alex Ionescu
* Hervé Poussineau
*/
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
#if defined(SARCH_PC98)
#define DEFAULT_BAUD_RATE 9600
#else
#define DEFAULT_BAUD_RATE 19200
#endif
#if defined(_M_IX86) || defined(_M_AMD64)
#if defined(SARCH_PC98)
const ULONG BaseArray[] = {0, 0x30, 0x238};
#else
const ULONG BaseArray[] = {0, 0x3F8, 0x2F8, 0x3E8, 0x2E8};
#endif
#elif defined(_M_PPC)
const ULONG BaseArray[] = {0, 0x800003F8};
#elif defined(_M_MIPS)
const ULONG BaseArray[] = {0, 0x80006000, 0x80007000};
#elif defined(_M_ARM)
const ULONG BaseArray[] = {0, 0xF1012000};
#else
#error Unknown architecture
#endif
#define MAX_COM_PORTS (sizeof(BaseArray) / sizeof(BaseArray[0]) - 1)
/* STATIC VARIABLES ***********************************************************/
// static CPPORT DefaultPort = {0, 0, 0};
/* The COM port must only be initialized once! */
// static BOOLEAN PortInitialized = FALSE;
/* REACTOS FUNCTIONS **********************************************************/
BOOLEAN
NTAPI
KdPortInitializeEx(
IN PCPPORT PortInformation,
IN ULONG ComPortNumber)
{
NTSTATUS Status;
#if 0 // Deactivated because never used in fact (was in KdPortInitialize but we use KdPortInitializeEx)
/*
* Find the port if needed
*/
if (!PortInitialized)
{
DefaultPort.BaudRate = PortInformation->BaudRate;
if (ComPortNumber == 0)
{
/*
* Start enumerating COM ports from the last one to the first one,
* and break when we find a valid port.
* If we reach the first element of the list, the invalid COM port,
* then it means that no valid port was found.
*/
for (ComPortNumber = MAX_COM_PORTS; ComPortNumber > 0; ComPortNumber--)
{
if (CpDoesPortExist(UlongToPtr(BaseArray[ComPortNumber])))
{
PortInformation->Address = DefaultPort.Address = BaseArray[ComPortNumber];
break;
}
}
if (ComPortNumber == 0)
{
HalDisplayString("\r\nKernel Debugger: No COM port found!\r\n\r\n");
return FALSE;
}
}
PortInitialized = TRUE;
}
#endif
/*
* Initialize the port
*/
Status = CpInitialize(PortInformation,
(ComPortNumber == 0 ? PortInformation->Address
: UlongToPtr(BaseArray[ComPortNumber])),
(PortInformation->BaudRate == 0 ? DEFAULT_BAUD_RATE
: PortInformation->BaudRate));
if (!NT_SUCCESS(Status))
{
HalDisplayString("\r\nKernel Debugger: Serial port not found!\r\n\r\n");
return FALSE;
}
else
{
#ifndef NDEBUG
CHAR buffer[80];
/* Print message to blue screen */
sprintf(buffer,
"\r\nKernel Debugger: Serial port found: COM%ld (Port 0x%p) BaudRate %ld\r\n\r\n",
ComPortNumber,
PortInformation->Address,
PortInformation->BaudRate);
HalDisplayString(buffer);
#endif /* NDEBUG */
#if 0
/* Set global info */
KdComPortInUse = DefaultPort.Address;
#endif
return TRUE;
}
}
BOOLEAN
NTAPI
KdPortGetByteEx(
IN PCPPORT PortInformation,
OUT PUCHAR ByteReceived)
{
return (CpGetByte(PortInformation, ByteReceived, FALSE, FALSE) == CP_GET_SUCCESS);
}
VOID
NTAPI
KdPortPutByteEx(
IN PCPPORT PortInformation,
IN UCHAR ByteToSend)
{
CpPutByte(PortInformation, ByteToSend);
}
/* EOF */