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/* 
 * MICRO-C IBM/PC Communications parameters 
 * 
 * Copyright 1990 Dave Dunfield 
 * All rights reserved. 
 */ 
 
/* 
 * Comm port driver control flags (Cflags) 
 */ 
#define	RFLOW		0x80	/* Flow control received */ 
#define TFLOW		0x40	/* Flow control transmitted */ 
#define	TXOFF		0x20	/* Transmit XOFF pending */ 
#define	TXON		0x10	/* Transmit XON  pending */ 
#define	TRANSPARENT	0x08	/* Transparent mode enable */ 
 
/* 
 * Common Baudrate divisors 
 */ 
#define	_110		1047	/*   110 baud */ 
#define	_300		384		/*   300 baud */ 
#define	_1200		96		/*  1200 baud */ 
#define	_2400		48		/*  2400 baud */ 
#define	_4800		24		/*  4800 baud */ 
#define	_9600		12		/*  9600 baud */ 
#define	_19200		6		/* 19.2K baud */ 
#define	_38400		3		/* 38.4K baud */ 
 
/* 
 * Mode bits: OR together one from each section 
 */ 
/* Section 1 - Break control */ 
#define	SEND_BREAK	0x40	/* Send break */ 
/* Section 2 - Parity */ 
#define	PAR_NO		0x00	/* No parity */ 
#define	PAR_ODD		0x08	/* Odd parity */ 
#define	PAR_EVEN	0x18	/* Even parity */ 
#define	PAR_MARK	0x28	/* Mark parity */ 
#define	PAR_SPACE	0x38	/* Space parity */ 
/* Section 3 - Stop bits */ 
#define	STOP_1		0x00	/* 1 stop bit */ 
#define	STOP_2		0x04	/* 2 stop bits (1.5 if 5 bits) */ 
/* Section 4 - Data bits */ 
#define	DATA_5		0x00	/* 5 bits */ 
#define	DATA_6		0x01	/* 6 bits */ 
#define DATA_7		0x02	/* 7 bits */ 
#define	DATA_8		0x03	/* 8 bits */ 
 
/* 
 * Bits in modem control register 
 */ 
#define	LOOPBACK	0x10	/* Set loopback mode */ 
#define	OUTPUT_1	0x04	/* General purpose output #1 */ 
#define	OUTPUT_2	0x08	/* General purpose output #2 */ 
#define	SET_RTS		0x02	/* Assert RTS output */ 
#define	SET_DTR		0x01	/* Assert DTR output */ 
 
/* 
 * Bits returned by Csignals() 
 */ 
#define	CD			0x80	/* Carrier detect */ 
#define	RI			0x40	/* Ring indicator */ 
#define	DSR			0x20	/* Data set ready */ 
#define	CTS			0x10	/* Clear to send  */ 
#define	END_RING	0x04	/* Ring has just ended */ 
#define	DELTA_CD	0x08	/* CD  has changed since last read */ 
#define	DELTA_DSR	0x02	/* DSR has changed since last read */ 
#define DELTA_CTS	0x01	/* CTS has changed since last read */ 
 
	extern char Cflags;		/* Driver control flags */