?? cport.h
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/*
// CPORT.H
//
// Header file for Cport Communications Library
//
// Copyright (c) 1993 Bri Productions
//
*/
#ifndef _CPORT_H_
#define _CPORT_H_
#include "stddef.h"
#if defined __TURBOC__
# if __STDC__
# define _Cdecl
# else
# define _Cdecl cdecl
# endif
#elif defined __ZTC__
# define _Cdecl
#elif defined M_I86 && !defined __ZTC__
# if !defined NO_EXT_KEYS
# define _Cdecl cdecl
# else
# define _Cdecl
# endif
#else
#define _Cdecl
#endif
/*
//-------------------------------------
//
// com port id's
//
//-------------------------------------
*/
#define PORT0 0x03F8 /* hard port addresses */
#define PORT1 0x02F8
#define PORT2 0x03E8
#define PORT3 0x02E8
#define BIOS0 (*(int far *)0x400000l) /* bios port addresses */
#define BIOS1 (*(int far *)0x400002l)
#define BIOS2 (*(int far *)0x400004l)
#define BIOS3 (*(int far *)0x400006l)
#define IRQ2 0x2000 /* irq's */
#define IRQ3 0x3000
#define IRQ4 0x4000
#define IRQ5 0x5000
#define IRQ6 0x6000
#define IRQ7 0x7000
#define COM1 (PORT0 | IRQ4) /* hard 'com' ports */
#define COM2 (PORT1 | IRQ3)
#define COM3 (PORT2 | IRQ4)
#define COM4 (PORT3 | IRQ3)
/* bios 'com' ports */
#define BCOM1 ((BIOS0 | 0x1000) + ((BIOS0 << 4) & 0xf000))
#define BCOM2 ((BIOS1 | 0x1000) + ((BIOS1 << 4) & 0xf000))
#define BCOM3 ((BIOS2 | 0x1000) + ((BIOS2 << 4) & 0xf000))
#define BCOM4 ((BIOS3 | 0x1000) + ((BIOS3 << 4) & 0xf000))
/*
//-------------------------------------
//
// baud rate divisors
//
//-------------------------------------
*/
#define B115200 1
#define B57600 2
#define B38400 3
#define B19200 6
#define B9600 12
#define B7200 16
#define B4800 24
#define B3600 32
#define B2400 48
#define B2000 58
#define B1800 64
#define B1200 96
#define B600 192
#define B300 384
#define B150 768
#define B110 1047
#define B75 1536
#define B50 2304
/*
//-------------------------------------
//
// word lengths
//
//-------------------------------------
*/
#define W8 3
#define W7 2
#define W6 1
#define W5 0
#define WMASK 3
/*
//-------------------------------------
//
// stop bits
//
//-------------------------------------
*/
#define S1 0
#define S2 4
#define SMASK 4
/*
//-------------------------------------
//
// parity
//
//-------------------------------------
*/
#define NONE 0x00
#define ODD 0x08
#define EVEN 0x18
#define MARK 0x28
#define SPACE 0x38
#define PMASK 0x38
/*
//-------------------------------------
//
// handshaking
//
//-------------------------------------
*/
#define DTR 0x001
#define RTS 0x002
#define S_RX 0x004
#define S_TX 0x008
#define CTS 0x010
#define DSR 0x020
#define DCD 0x080
#define SOFT ((S_RX) | (S_TX))
#define HARD ((RTS)| (CTS))
#define HARD1 ((DTR)| (DSR))
#define HARD2 ((RTS)| (CTS))
/*
//-------------------------------------
//
// error codes
//
//-------------------------------------
*/
#define OVERUN 0x002 /* overrun error */
#define PARITY 0x004 /* parity error */
#define FRAMING 0x008 /* framing error */
#define BREAK 0x010 /* break detect */
#define RX_FIFO 0x080 /* error in recieve fifo */
#define TXFULL 0x100 /* transmit queue overflow */
#define RXFULL 0x200 /* receive queue overflow */
/*
//-------------------------------------
//
// status codes
//
//-------------------------------------
*/
#define DCTS 0x001 /* delta clear to send */
#define DDSR 0x002 /* delta data set ready */
#define TERI 0x004 /* trailing edge ring indicator */
#define DDCD 0x008 /* delta data carrier detect */
#define CTS 0x010 /* clear to send */
#define DSR 0x020 /* data set ready */
#define RI 0x040 /* ring indicator */
#define DCD 0x080 /* data carrier detect */
#define S_TX_OFF 0x0100 /* software transmit off */
#define U_TX_OFF 0x0200 /* user transmit off */
#define S_RX_OFF 0x0400 /* software receive off */
#define X_REQST 0x0800 /* send XON/XOFF request */
#define X_SENT 0x1000 /* X character send (TX_DIRECT) */
#define U_TX_DIR 0x2000 /* In direct transmit mode */
/*
//-------------------------------------
//
// Uart types ComUart
//
//-------------------------------------
*/
#define INS8250 1 /* INS8250/INS8250-B */
#define NS16450 2 /* INS8250A/NS16450/NS16C450/NS16C450A */
#define NS16550 3 /* NS16550 */
#define I82510 4 /* 82510 (Intel) */
/*
//-------------------------------------
//
// ComTurbo options
//
//-------------------------------------
*/
#define TIMER 0x01 /* timer bit (irq0) */
#define KEYBOARD 0x02 /* keyboard bit (irq1) */
#define CASCADE 0x04 /* cascade/reserved bit (irq2) */
/*
//-------------------------------------
//
// NS16550 rx FIFO trigger levels
//
//-------------------------------------
*/
#define T550_1 0x00
#define T550_4 0x40
#define T550_8 0x80
#define T550_14 0xC0
/*
//-------------------------------------
//
//
//
//-------------------------------------
*/
/*
//-------------------------------------
//
// typedefs and structures
//
//-------------------------------------
*/
#ifndef _BYTE_
#define _BYTE_
typedef unsigned char byte;
#endif
/* Make sure this structure is byte packed
*/
#ifdef M_I86
#pragma pack(1)
#endif
/** Do not change this structure **/
struct C_param{
unsigned id; /* com port id */
int baud; /* baud rate */
byte mode; /* word length, stop bits, parity */
unsigned rxQ; /* receive queue size */
unsigned txQ; /* transmit queue size */
byte htype; /* handshaking type */
unsigned thresh; /* handshaking threshold (rx queue) */
};
typedef struct C_param CPARAM;
typedef void* COM;
#ifdef M_I86
#pragma pack()
#endif
/*
//-------------------------------------
//
// Misc
//
//-------------------------------------
*/
enum { OFF , ON };
#define TX_DIRECT 0x20
/*
//-------------------------------------
//
// comopen_errno
//
//-------------------------------------
*/
#define NO_ERR 0 /* no error */
#define OPENED 1 /* port already opened */
#define BAD_ID 2 /* bad id parameter */
#define NO_UART 3 /* no uart chip found */
#define RX_ALC 4 /* receive queue allocation error */
#define TX_ALC 5 /* transmit queue allocation error */
#define MAX_PORT 6 /* max number of com ports opened */
#define IRQ_CTN 7 /* interrupt contention */
#define GEN_ALC 8 /* general allocation error */
/*
//-------------------------------------
//
// function macros
//
//-------------------------------------
*/
#define ComOut1(c,a) ComMcr(c,a, 0x04)
#define ComRts(c,a) ComMcr(c,a, 0x02)
#define ComDtr(c,a) ComMcr(c,a, 0x01)
/*
//-------------------------------------
//
// function prototypes
//
//-------------------------------------
*/
#ifdef __cplusplus
extern "C" {
#endif
/* control functions */
COM _Cdecl ComOpen (unsigned id, int baud, byte mode, unsigned rxQ, unsigned txQ);
COM _Cdecl ComOpenS (const CPARAM* param);
COM _Cdecl ComClose (COM com);
void _Cdecl ComHandshake (COM com, byte htype, unsigned thresh);
void _Cdecl ComParam (COM com, CPARAM* param);
void _Cdecl ComBaud (COM com, int baud);
void _Cdecl ComMode (COM com, byte mode);
int _Cdecl ComTx (COM com, int cmnd);
void _Cdecl ComTurbo (int options);
void _Cdecl ComCloseAll (void);
void _Cdecl ComNS550 (COM com, int trigger);
unsigned _Cdecl ComRxQ (COM com, unsigned size);
unsigned _Cdecl ComTxQ (COM com, unsigned size);
/* input functions */
char _Cdecl ComGetc (COM com);
unsigned _Cdecl ComLenRx (COM com);
char *_Cdecl ComGets (COM com, char *str, int maxc, char termc);
unsigned _Cdecl ComIn (COM com, void *abyte, unsigned nbyte);
void _Cdecl ComFlushRx (COM com);
char _Cdecl ComPeek (COM com);
unsigned _Cdecl ComRxScan (COM com, char c);
/* output functions */
int _Cdecl ComPutc (COM com, char c);
unsigned _Cdecl ComLenTx (COM com);
int _Cdecl ComPuts (COM com, const char *str);
unsigned _Cdecl ComOut (COM com, const void *abyte, unsigned nbyte);
void _Cdecl ComFlushTx (COM com);
void _Cdecl ComTxWait (COM com);
/* status functions */
void _Cdecl ComMcr (COM com, byte on_off, byte bits);
unsigned _Cdecl ComError (COM com);
unsigned _Cdecl ComStatus (COM com);
int _Cdecl ComUart (COM com);
/* misc fuctions */
void _Cdecl ComSetBreak (COM com);
void _Cdecl ComClrBreak (COM com);
void _Cdecl ComPutScrtch (COM com, byte abyte);
byte _Cdecl ComGetScrtch (COM com);
/* data integrity functions */
byte _Cdecl ComChecksum (const void *abyte, unsigned nbyte);
unsigned _Cdecl ComCrc16 (const void *abyte, unsigned nbyte);
unsigned long _Cdecl ComCrc32 (const void *abyte, unsigned nbyte);
/* debug */
COM _Cdecl ComHandle (COM com);
#ifdef __cplusplus
} /* extern "C" */
#endif
/*
//-------------------------------------
//
// comopen_errno
//
//-------------------------------------
*/
#ifdef __cplusplus
extern "C" int comopen_errno;
#else
extern int comopen_errno;
#endif
/*
//-------------------------------------
//
// Other header files
//
//-------------------------------------
*/
/* Implicit and explicit C++ inclusion
*/
#ifdef __cplusplus
#include "cport.hpp"
#endif
/* Xmodem inclusion
*/
#ifdef Uses_Xmodem
#include "xmodem.h"
#endif
/* Zmodem inclusion
*/
#ifdef Uses_Zmodem
#include "zmodem.h" /* Not yet implemented */
#endif
#endif /* CPORT.H */
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