skarg
108 lines
5.0 KiB
C
108 lines
5.0 KiB
C
/*
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+----------------------------------------------------+
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| Thunderbird Software |
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+----------------------------------------------------+
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| Filespec : Serial.c |
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| Date : October 24, 1991 |
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| Time : 15:03 |
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| Revision : 1.1 |
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| Update : August 29, 1994 |
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| Update : March 12, 1995 by Bob Stout |
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+----------------------------------------------------+
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| Programmer: Scott Andrews |
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| Address : 5358 Summit RD SW |
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| City/State: Pataskala, Ohio |
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| Zip : 43062 |
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+----------------------------------------------------+
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| Released to the Public Domain |
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+----------------------------------------------------+
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*/
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#ifndef SERIAL__H
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#define SERIAL__H
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#include "extkword.h"
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#include "pchwio.h"
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#define SerInBufSize 4096 /* Size of input buffer */
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#define SerOutBufSize 512 /* Size of output buffer */
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/* 8250 registers */
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#define REC 0 /* Uart receive reg. */
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#define XMIT 0 /* Uart transmit reg. */
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#define INT_EN 1 /* Uart int. enable reg. */
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#define INT_ID 2 /* Uart int. ident. reg. */
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#define LINE_CNTRL 3 /* Uart line control reg. */
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#define MODEM_CNTRL 4 /* Uart modem control reg. */
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#define LINE_STATUS 5 /* Uart line status reg. */
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#define MODEM_STATUS 6 /* Uart modem status reg. */
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#define BAUD_LSB 0 /* Uart baud divisor reg. */
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#define BAUD_MSB 1 /* Uart baud divisor reg. */
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#define NONE 0 /* Handshake param none */
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#define HDW 1 /* Handshake param hardware */
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#define XON 2 /* Handshake param software */
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/* Interrupt enable register */
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#define RX_INT 0x01 /* Receive interrupt mask */
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#define TBE_INT 0x02 /* Transmit buffer empty mask */
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#define ERR_INT 0x04 /* Error interrupt mask */
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#define RS_INT 0x08 /* Line interrupt mask */
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/* Interrupt id register */
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#define OUT2 0x08 /* Out 2 line */
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#define DTR 0x01 /* DTR high */
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#define RTS 0x02 /* RTS high */
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#define CTS 0x10
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#define DSR 0x20
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#define XMTRDY 0x20
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#define TXR 0 /* Transmit register (WRITE) */
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#if !defined TRUE /* Define boolean true/false */
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#define FALSE 0
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#define TRUE !FALSE
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#endif
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extern void (INTERRUPT FAR *oldvector_serial )( void);
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extern int ComBase; /* Comm port address */
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extern int IrqNum; /* Comm interrupt request */
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typedef struct /* Save existing comm params */
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{ int int_enable; /* old interrupt enable reg value*/
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int line; /* " line control " " */
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int modem; /* old modem control " " */
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int baud_lsb; /* old baud rate divisor LSD */
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int baud_msb; /* " " " " MSD */
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int int_cntrl; /* old PIC interrupt reg value */
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} OLD_COMM_PARAMS;
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extern OLD_COMM_PARAMS old_comm_params;
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typedef struct
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{ int line; /* Uart line status reg. */
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int modem; /* Uart mode status reg. */
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int intrupt; /* Uart interrupt reg. */
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int handshake; /* Handshake status */
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} COMM_STATUS; /* status, updated, handler */
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extern COMM_STATUS comm_status;
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int OpenComPort ( char Port ); /*setup comm for usage */
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void InitComPort ( char Baud[], char Databits, char Parity, char Stop );
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void CloseComPort ( void ); /* Restore comm port */
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void DropDtr ( void ); /* Lower DTR */
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void RaiseDtr ( void ); /* Raise DTR */
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int ComRecChar ( void ); /* Fetch character from rcv buf*/
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int ComSendChar ( char character ); /* Put char into xmit buffer */
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int ComSendString ( char *string );
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int ComSendData ( char *buffer, unsigned buffer_length );
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int ComStatus ( void ); /* Fetch comm status */
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void INTERRUPT FAR serial ( void ); /* interrupt handler */
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/* End of Serial.H */
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#endif /* SERIAL__H */
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