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/*++
Copyright (c) 1990 Microsoft Corporation
Module Name:
ixkdcom.h
Abstract:
This module contains the header file for a very simple com port package.
Author:
Bryan M. Willman (bryanwi) 24-Sep-1990
Revision History:
John Vert (jvert) 19-Jul-1991
Moved into HAL
--*/
#define COM1_PORT 0x03f8
#define COM2_PORT 0x02f8
#define COM_DAT 0x00
#define COM_IEN 0x01 // interrupt enable register
#define COM_LCR 0x03 // line control registers
#define COM_MCR 0x04 // modem control reg
#define COM_LSR 0x05 // line status register
#define COM_MSR 0x06 // modem status register
#define COM_DLL 0x00 // divisor latch least sig
#define COM_DLM 0x01 // divisor latch most sig
#define COM_BI 0x10
#define COM_FE 0x08
#define COM_PE 0x04
#define COM_OE 0x02
#define LC_DLAB 0x80 // divisor latch access bit
#define CLOCK_RATE 0x1C200 // USART clock rate
#define MC_DTRRTS 0x03 // Control bits to assert DTR and RTS
#define MS_DSRCTSCD 0xB0 // Status bits for DSR, CTS and CD
#define MS_CD 0x80
#define BD_150 150
#define BD_300 300
#define BD_600 600
#define BD_1200 1200
#define BD_2400 2400
#define BD_4800 4800
#define BD_9600 9600
#define BD_14400 14400
#define BD_19200 19200
#define BD_56000 56000
#define COM_OUTRDY 0x20
#define COM_DATRDY 0x01
//
// This bit controls the loopback testing mode of the device. Basically
// the outputs are connected to the inputs (and vice versa).
//
#define SERIAL_MCR_LOOP 0x10
//
// This bit is used for general purpose output.
//
#define SERIAL_MCR_OUT1 0x04
//
// This bit contains the (complemented) state of the clear to send
// (CTS) line.
//
#define SERIAL_MSR_CTS 0x10
//
// This bit contains the (complemented) state of the data set ready
// (DSR) line.
//
#define SERIAL_MSR_DSR 0x20
//
// This bit contains the (complemented) state of the ring indicator
// (RI) line.
//
#define SERIAL_MSR_RI 0x40
//
// This bit contains the (complemented) state of the data carrier detect
// (DCD) line.
//
#define SERIAL_MSR_DCD 0x80
typedef struct _CPPORT {
PUCHAR Address;
ULONG Baud;
USHORT Flags;
TIME_FIELDS CarrierLostTime;
// ULONG LockVar;
// KSPIN_LOCK Lock;
} CPPORT, *PCPPORT;
#define PORT_DEFAULTRATE 0x0001 // baud rate not specified, using default
#define PORT_MODEMCONTROL 0x0002 // using modem controls
#define PORT_SAVED 0x0004 // port is in saved state
#define PORT_NOCDLTIME 0x0010 // 'Carrier detect lost' time not set
#define PORT_DISBAUD 0x0020 // Display baud rate abbrv
#define PORT_SENDINGSTRING 0x0040 // Sending modem string (don't recurse)
#define PORT_MDM_CD 0x0080 // CD while in modem control mode
VOID
CpInitialize (
PCPPORT Port,
PUCHAR Address,
ULONG Rate
);
VOID
CpSetBaud (
PCPPORT Port,
ULONG Rate
);
USHORT
CpQueryBaud (
PCPPORT Port
);
VOID
CpPutByte (
PCPPORT Port,
UCHAR Byte
);
USHORT
CpGetByte (
PCPPORT Port,
PUCHAR Byte,
BOOLEAN WaitForData
);
VOID
CpLockPort (
PCPPORT Port
);
VOID
CpUnlockPort (
PCPPORT Port
);
VOID
CpStallExecution (
VOID
);
BOOLEAN
CpDoesPortExist(
IN PUCHAR Address
);
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