/*
** === WtCom.H -- Header for WtCom.C
*/

/*
** === Comm parameters for serial interface.
**     These are the bits as applicable to the set up call of INT 14
**     or the Turbo C equivalent, bioscom().
*/

/* --- Port Number --- */
#define SER_COM1	0
#define SER_COM2	1
#define SER_COM3        2
#define SER_COM4        3

/* --- Baud Rates --- */
#define SER_BD110	(0 << 5)
#define SER_BD150	(1 << 5)
#define SER_BD300	(2 << 5)
#define SER_BD600	(3 << 5)
#define SER_BD1200	(4 << 5)
#define SER_BD2400	(5 << 5)
#define SER_BD4800	(6 << 5)
#define SER_BD9600	(7 << 5)
#define SER_BD19200 (8 << 5)

/* --- Parity --- */
#define SER_PANO	(0 << 3)
#define SER_PAOD	(1 << 3)
#define SER_PAEV	(3 << 3)

/* --- Stop Bits --- */
#define SER_ST1		(0 << 2)
#define SER_ST2		(1 << 2)

/* --- Data Bits (Word Length) --- */
#define SER_WD7		(2 << 0)
#define SER_WD8		(3 << 0)

/* --- Relevant Status bits --- */
#define SER_S_TIMEOUT	0x8000
#define SER_S_BREAK		0x1000
#define SER_S_FRAME		0x0800
#define SER_S_PARITY	0x0400
#define SER_S_OVERRUN	0x0200
#define SER_S_DATA 		0x0100


/*======================*/
/*===== Prototypes =====*/
/*======================*/
void com_flush(void);
void com_init(void);
void com_setparms(void);               /* Sets up port via bioscom() */
void com_setport(unsigned portparm);   /* Sets port number           */
void com_setbaud(unsigned baudparm);   /* Sets baud rate             */
void com_setpari(unsigned pariparm);   /* Sets parity                */
void com_setdata(unsigned dataparm);   /* Sets data bits             */
void com_sethdx(unsigned hdxparm);     /* Sets half-duplex (echo)    */
void com_setstop(unsigned stopparm);   /* Sets stop bits             */
int  com_update(void);					/* update display from input */
void com_xputs(char *s);				/* send translated string 	 */

/* EOF(WtCom.H) */