+++ /dev/null
-/*
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS kernel
- * FILE: drivers/base/kdcom/kdbg.c
- * PURPOSE: Serial i/o functions for the kernel debugger.
- * PROGRAMMER: Alex Ionescu
- * Hervé Poussineau
- */
-
-/* INCLUDES *****************************************************************/
-
-#define NOEXTAPI
-#include <ntifs.h>
-#include <halfuncs.h>
-#include <stdio.h>
-#include "arc/arc.h"
-#include "windbgkd.h"
-#include <kddll.h>
-#include <ioaccess.h> /* port intrinsics */
-#include <cportlib/cportlib.h>
-
-#define NDEBUG
-#include <debug.h>
-
-
-typedef struct _KD_PORT_INFORMATION
-{
- ULONG ComPort;
- ULONG BaudRate;
- ULONG BaseAddress;
-} KD_PORT_INFORMATION, *PKD_PORT_INFORMATION;
-
-BOOLEAN
-NTAPI
-KdPortInitializeEx(
- IN PKD_PORT_INFORMATION PortInformation,
- IN ULONG Unknown1,
- IN ULONG Unknown2);
-
-BOOLEAN
-NTAPI
-KdPortGetByteEx(
- IN PKD_PORT_INFORMATION PortInformation,
- OUT PUCHAR ByteReceived);
-
-BOOLEAN
-NTAPI
-KdPortPollByteEx(
- IN PKD_PORT_INFORMATION PortInformation,
- OUT PUCHAR ByteReceived);
-
-VOID
-NTAPI
-KdPortPutByteEx(
- IN PKD_PORT_INFORMATION PortInformation,
- IN UCHAR ByteToSend);
-
-#define DEFAULT_BAUD_RATE 19200
-
-#if defined(_M_IX86) || defined(_M_AMD64)
-const ULONG BaseArray[] = {0, 0x3F8, 0x2F8, 0x3E8, 0x2E8};
-#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
-
-/* MACROS *******************************************************************/
-
-#define SER_RBR(x) ((PUCHAR)(x)+0)
-#define SER_THR(x) ((PUCHAR)(x)+0)
-#define SER_DLL(x) ((PUCHAR)(x)+0)
-#define SER_IER(x) ((PUCHAR)(x)+1)
-#define SR_IER_ERDA 0x01
-#define SR_IER_ETHRE 0x02
-#define SR_IER_ERLSI 0x04
-#define SR_IER_EMS 0x08
-#define SR_IER_ALL 0x0F
-#define SER_DLM(x) ((PUCHAR)(x)+1)
-#define SER_IIR(x) ((PUCHAR)(x)+2)
-#define SER_FCR(x) ((PUCHAR)(x)+2)
-#define SR_FCR_ENABLE_FIFO 0x01
-#define SR_FCR_CLEAR_RCVR 0x02
-#define SR_FCR_CLEAR_XMIT 0x04
-#define SER_LCR(x) ((PUCHAR)(x)+3)
-#define SR_LCR_CS5 0x00
-#define SR_LCR_CS6 0x01
-#define SR_LCR_CS7 0x02
-#define SR_LCR_CS8 0x03
-#define SR_LCR_ST1 0x00
-#define SR_LCR_ST2 0x04
-#define SR_LCR_PNO 0x00
-#define SR_LCR_POD 0x08
-#define SR_LCR_PEV 0x18
-#define SR_LCR_PMK 0x28
-#define SR_LCR_PSP 0x38
-#define SR_LCR_BRK 0x40
-#define SR_LCR_DLAB 0x80
-#define SER_MCR(x) ((PUCHAR)(x)+4)
-#define SR_MCR_DTR 0x01
-#define SR_MCR_RTS 0x02
-#define SR_MCR_OUT1 0x04
-#define SR_MCR_OUT2 0x08
-#define SR_MCR_LOOP 0x10
-#define SER_LSR(x) ((PUCHAR)(x)+5)
-#define SR_LSR_DR 0x01
-#define SR_LSR_TBE 0x20
-#define SER_MSR(x) ((PUCHAR)(x)+6)
-#define SR_MSR_CTS 0x10
-#define SR_MSR_DSR 0x20
-#define SER_SCR(x) ((PUCHAR)(x)+7)
-
-
-/* GLOBAL VARIABLES *********************************************************/
-
-/* STATIC VARIABLES *********************************************************/
-
-static KD_PORT_INFORMATION DefaultPort = { 0, 0, 0 };
-
-/* The com port must only be initialized once! */
-static BOOLEAN PortInitialized = FALSE;
-
-
-/* FUNCTIONS ****************************************************************/
-
-/* HAL.KdPortInitialize */
-BOOLEAN
-NTAPI
-KdPortInitialize(
- IN PKD_PORT_INFORMATION PortInformation,
- IN ULONG Unknown1,
- IN ULONG Unknown2)
-{
- SIZE_T i;
- CHAR buffer[80];
-
- if (!PortInitialized)
- {
- DefaultPort.BaudRate = PortInformation->BaudRate;
-
- if (PortInformation->ComPort == 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 (i = sizeof(BaseArray) / sizeof(BaseArray[0]) - 1; i > 0; i--)
- {
- if (CpDoesPortExist(UlongToPtr(BaseArray[i])))
- {
- PortInformation->BaseAddress = DefaultPort.BaseAddress = BaseArray[i];
- PortInformation->ComPort = DefaultPort.ComPort = i;
- break;
- }
- }
- if (i == 0)
- {
- sprintf(buffer,
- "\nKernel Debugger: No COM port found!\n\n");
- HalDisplayString(buffer);
- return FALSE;
- }
- }
-
- PortInitialized = TRUE;
- }
-
- /* initialize port */
- if (!KdPortInitializeEx(&DefaultPort, Unknown1, Unknown2))
- return FALSE;
-
- /* set global info */
- KdComPortInUse = (PUCHAR)DefaultPort.BaseAddress;
-
- return TRUE;
-}
-
-
-/* HAL.KdPortInitializeEx ; ReactOS-specific */
-BOOLEAN
-NTAPI
-KdPortInitializeEx(
- IN PKD_PORT_INFORMATION PortInformation,
- IN ULONG Unknown1,
- IN ULONG Unknown2)
-{
- ULONG ComPortBase;
- CHAR buffer[80];
- ULONG divisor;
- UCHAR lcr;
-
-#ifdef _ARM_
- UNIMPLEMENTED;
- return FALSE;
-#endif
-
- if (PortInformation->BaudRate == 0)
- PortInformation->BaudRate = DEFAULT_BAUD_RATE;
-
- if (PortInformation->ComPort != 0)
- {
- if (!CpDoesPortExist(UlongToPtr(BaseArray[PortInformation->ComPort])))
- {
- sprintf(buffer,
- "\nKernel Debugger: Serial port not found!\n\n");
- HalDisplayString(buffer);
- return FALSE;
- }
-
- ComPortBase = BaseArray[PortInformation->ComPort];
- PortInformation->BaseAddress = ComPortBase;
- }
- else
- {
- ComPortBase = PortInformation->BaseAddress;
- }
-
- if (ComPortBase == 0)
- return FALSE;
-
-#ifndef NDEBUG
- sprintf(buffer,
- "\nSerial port COM%ld found at 0x%lx\n",
- PortInformation->ComPort,
- ComPortBase);
- HalDisplayString(buffer);
-#endif /* NDEBUG */
-
- /* set baud rate and data format (8N1) */
-
- /* turn on DTR and RTS */
- WRITE_PORT_UCHAR(SER_MCR(ComPortBase), SR_MCR_DTR | SR_MCR_RTS);
-
- /* set DLAB */
- lcr = READ_PORT_UCHAR(SER_LCR(ComPortBase)) | SR_LCR_DLAB;
- WRITE_PORT_UCHAR(SER_LCR(ComPortBase), lcr);
-
- /* set baud rate */
- divisor = 115200 / PortInformation->BaudRate;
- WRITE_PORT_UCHAR(SER_DLL(ComPortBase), (UCHAR)(divisor & 0xff));
- WRITE_PORT_UCHAR(SER_DLM(ComPortBase), (UCHAR)((divisor >> 8) & 0xff));
-
- /* reset DLAB and set 8N1 format */
- WRITE_PORT_UCHAR(SER_LCR(ComPortBase),
- SR_LCR_CS8 | SR_LCR_ST1 | SR_LCR_PNO);
-
- /* read junk out of the RBR */
- lcr = READ_PORT_UCHAR(SER_RBR(ComPortBase));
-
-#ifndef NDEBUG
- /* print message to blue screen */
- sprintf(buffer,
- "\nKernel Debugger: COM%ld (Port 0x%lx) BaudRate %ld\n\n",
- PortInformation->ComPort,
- ComPortBase,
- PortInformation->BaudRate);
-
- HalDisplayString(buffer);
-#endif /* NDEBUG */
-
- return TRUE;
-}
-
-
-/* HAL.KdPortGetByte */
-BOOLEAN
-NTAPI
-KdPortGetByte(
- OUT PUCHAR ByteReceived)
-{
- if (!PortInitialized)
- return FALSE;
- return KdPortGetByteEx(&DefaultPort, ByteReceived);
-}
-
-
-/* HAL.KdPortGetByteEx ; ReactOS-specific */
-BOOLEAN
-NTAPI
-KdPortGetByteEx(
- IN PKD_PORT_INFORMATION PortInformation,
- OUT PUCHAR ByteReceived)
-{
- PUCHAR ComPortBase = (PUCHAR)PortInformation->BaseAddress;
-
- if ((READ_PORT_UCHAR(SER_LSR(ComPortBase)) & SR_LSR_DR))
- {
- *ByteReceived = READ_PORT_UCHAR(SER_RBR(ComPortBase));
- return TRUE;
- }
-
- return FALSE;
-}
-
-
-/* HAL.KdPortPollByte */
-BOOLEAN
-NTAPI
-KdPortPollByte(
- OUT PUCHAR ByteReceived)
-{
- if (!PortInitialized)
- return FALSE;
- return KdPortPollByteEx(&DefaultPort, ByteReceived);
-}
-
-
-/* HAL.KdPortPollByteEx ; ReactOS-specific */
-BOOLEAN
-NTAPI
-KdPortPollByteEx(
- IN PKD_PORT_INFORMATION PortInformation,
- OUT PUCHAR ByteReceived)
-{
- PUCHAR ComPortBase = (PUCHAR)PortInformation->BaseAddress;
-
- while ((READ_PORT_UCHAR(SER_LSR(ComPortBase)) & SR_LSR_DR) == 0)
- ;
-
- *ByteReceived = READ_PORT_UCHAR(SER_RBR(ComPortBase));
-
- return TRUE;
-}
-
-
-/* HAL.KdPortPutByte */
-VOID
-NTAPI
-KdPortPutByte(
- IN UCHAR ByteToSend)
-{
- if (!PortInitialized)
- return;
- KdPortPutByteEx(&DefaultPort, ByteToSend);
-}
-
-/* HAL.KdPortPutByteEx ; ReactOS-specific */
-VOID
-NTAPI
-KdPortPutByteEx(
- IN PKD_PORT_INFORMATION PortInformation,
- IN UCHAR ByteToSend)
-{
- PUCHAR ComPortBase = (PUCHAR)PortInformation->BaseAddress;
-
- while ((READ_PORT_UCHAR(SER_LSR(ComPortBase)) & SR_LSR_TBE) == 0)
- ;
-
- WRITE_PORT_UCHAR(SER_THR(ComPortBase), ByteToSend);
-}
-
-
-/* HAL.KdPortRestore */
-VOID
-NTAPI
-KdPortRestore(VOID)
-{
- UNIMPLEMENTED;
-}
-
-
-/* HAL.KdPortSave */
-VOID
-NTAPI
-KdPortSave(VOID)
-{
- UNIMPLEMENTED;
-}
-
-
-/* HAL.KdPortDisableInterrupts */
-BOOLEAN
-NTAPI
-KdPortDisableInterrupts(VOID)
-{
- UCHAR ch;
-
- if (!PortInitialized)
- return FALSE;
-
- ch = READ_PORT_UCHAR(SER_MCR(DefaultPort.BaseAddress));
- ch &= (~(SR_MCR_OUT1 | SR_MCR_OUT2));
- WRITE_PORT_UCHAR(SER_MCR(DefaultPort.BaseAddress), ch);
-
- ch = READ_PORT_UCHAR(SER_IER(DefaultPort.BaseAddress));
- ch &= (~SR_IER_ALL);
- WRITE_PORT_UCHAR(SER_IER(DefaultPort.BaseAddress), ch);
-
- return TRUE;
-}
-
-
-/* HAL.KdPortEnableInterrupts */
-BOOLEAN
-NTAPI
-KdPortEnableInterrupts(VOID)
-{
- UCHAR ch;
-
- if (PortInitialized == FALSE)
- return FALSE;
-
- ch = READ_PORT_UCHAR(SER_IER(DefaultPort.BaseAddress));
- ch &= (~SR_IER_ALL);
- ch |= SR_IER_ERDA;
- WRITE_PORT_UCHAR(SER_IER(DefaultPort.BaseAddress), ch);
-
- ch = READ_PORT_UCHAR(SER_MCR(DefaultPort.BaseAddress));
- ch &= (~SR_MCR_LOOP);
- ch |= (SR_MCR_OUT1 | SR_MCR_OUT2);
- WRITE_PORT_UCHAR(SER_MCR(DefaultPort.BaseAddress), ch);
-
- return TRUE;
-}
-
-/*
- * @unimplemented
- */
-NTSTATUS
-NTAPI
-KdDebuggerInitialize0(
- IN PLOADER_PARAMETER_BLOCK LoaderBlock OPTIONAL)
-{
- return STATUS_NOT_IMPLEMENTED;
-}
-
-/*
- * @unimplemented
- */
-NTSTATUS
-NTAPI
-KdDebuggerInitialize1(
- IN PLOADER_PARAMETER_BLOCK LoaderBlock OPTIONAL)
-{
- return STATUS_NOT_IMPLEMENTED;
-}
-
-/*
- * @implemented
- */
-NTSTATUS
-NTAPI
-KdSave(
- IN BOOLEAN SleepTransition)
-{
- /* Nothing to do on COM ports */
- return STATUS_SUCCESS;
-}
-
-/*
- * @implemented
- */
-NTSTATUS
-NTAPI
-KdRestore(
- IN BOOLEAN SleepTransition)
-{
- /* Nothing to do on COM ports */
- return STATUS_SUCCESS;
-}
-
-/*
- * @unimplemented
- */
-VOID
-NTAPI
-KdSendPacket(
- IN ULONG PacketType,
- IN PSTRING MessageHeader,
- IN PSTRING MessageData,
- IN OUT PKD_CONTEXT Context)
-{
- UNIMPLEMENTED;
- return;
-}
-
-/*
- * @unimplemented
- */
-KDSTATUS
-NTAPI
-KdReceivePacket(
- IN ULONG PacketType,
- OUT PSTRING MessageHeader,
- OUT PSTRING MessageData,
- OUT PULONG DataLength,
- IN OUT PKD_CONTEXT Context)
-{
- UNIMPLEMENTED;
- return 0;
-}
-
-/* EOF */
projects / reactos.git / blobdiff