173 lines
3.6 KiB
C
173 lines
3.6 KiB
C
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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ixkdcom.h
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Abstract:
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This module contains the header file for a very simple com port package.
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Author:
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Bryan M. Willman (bryanwi) 24-Sep-1990
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Revision History:
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John Vert (jvert) 19-Jul-1991
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Moved into HAL
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--*/
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#define COM1_PORT 0x03f8
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#define COM2_PORT 0x02f8
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#define COM3_PORT 0x03e8
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#define COM4_PORT 0x02e8
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#define COM_DAT 0x00
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#define COM_IEN 0x01 // interrupt enable register
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#define COM_LCR 0x03 // line control registers
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#define COM_MCR 0x04 // modem control reg
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#define COM_LSR 0x05 // line status register
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#define COM_MSR 0x06 // modem status register
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#define COM_DLL 0x00 // divisor latch least sig
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#define COM_DLM 0x01 // divisor latch most sig
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#define COM_BI 0x10
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#define COM_FE 0x08
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#define COM_PE 0x04
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#define COM_OE 0x02
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#define LC_DLAB 0x80 // divisor latch access bit
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#define CLOCK_RATE 0x1C200 // USART clock rate
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#define MC_DTRRTS 0x03 // Control bits to assert DTR and RTS
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#define MS_DSRCTSCD 0xB0 // Status bits for DSR, CTS and CD
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#define MS_CD 0x80
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#define BD_150 150
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#define BD_300 300
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#define BD_600 600
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#define BD_1200 1200
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#define BD_2400 2400
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#define BD_4800 4800
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#define BD_9600 9600
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#define BD_14400 14400
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#define BD_19200 19200
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#define BD_56000 56000
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#define BD_57600 57600
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#define BD_115200 115200
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#define COM_OUTRDY 0x20
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#define COM_DATRDY 0x01
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#define MSG_DEBUG_9600 "Switching debugger to 9600 baud\n"
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//
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// This bit controls the loopback testing mode of the device. Basically
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// the outputs are connected to the inputs (and vice versa).
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//
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#define SERIAL_MCR_LOOP 0x10
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//
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// This bit is used for general purpose output.
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//
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#define SERIAL_MCR_OUT1 0x04
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//
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// This bit contains the (complemented) state of the clear to send
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// (CTS) line.
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//
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#define SERIAL_MSR_CTS 0x10
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//
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// This bit contains the (complemented) state of the data set ready
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// (DSR) line.
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//
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#define SERIAL_MSR_DSR 0x20
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//
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// This bit contains the (complemented) state of the ring indicator
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// (RI) line.
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//
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#define SERIAL_MSR_RI 0x40
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//
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// This bit contains the (complemented) state of the data carrier detect
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// (DCD) line.
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//
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#define SERIAL_MSR_DCD 0x80
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#define SERIAL_LSR_NOT_PRESENT 0xff
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typedef struct _CPPORT {
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PUCHAR Address;
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ULONG Baud;
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USHORT Flags;
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TIME_FIELDS CarrierLostTime;
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// ULONG LockVar;
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// KSPIN_LOCK Lock;
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} CPPORT, *PCPPORT;
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#define PORT_DEFAULTRATE 0x0001 // baud rate not specified, using default
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#define PORT_MODEMCONTROL 0x0002 // using modem controls
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#define PORT_SAVED 0x0004 // port is in saved state
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#define PORT_NOCDLTIME 0x0010 // 'Carrier detect lost' time not set
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#define PORT_DISBAUD 0x0020 // Display baud rate abbrv
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#define PORT_SENDINGSTRING 0x0040 // Sending modem string (don't recurse)
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#define PORT_MDM_CD 0x0080 // CD while in modem control mode
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VOID
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CpInitialize (
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PCPPORT Port,
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PUCHAR Address,
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ULONG Rate
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);
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VOID
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CpSetBaud (
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PCPPORT Port,
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ULONG Rate
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);
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USHORT
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CpQueryBaud (
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PCPPORT Port
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);
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VOID
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CpPutByte (
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PCPPORT Port,
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UCHAR Byte
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);
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USHORT
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CpGetByte (
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PCPPORT Port,
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PUCHAR Byte,
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BOOLEAN WaitForData
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);
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VOID
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CpLockPort (
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PCPPORT Port
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);
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VOID
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CpUnlockPort (
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PCPPORT Port
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);
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VOID
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CpStallExecution (
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VOID
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);
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BOOLEAN
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CpDoesPortExist(
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IN PUCHAR Address
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);
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