#define	FALSE				0
/* RS232 set up parameters	*/
#define COM1 				0
#define COM2 				1

#define DATABITS7 		0x02
#define DATABITS8 		0x03

#define STOPBIT1  		0x00
#define STOPBIT2  		0x04

#define NOPARITY  		0x00
#define ODDPARITY   	0x08
#define EVENPARITY  	0x18

#define BAUD110 		0x00
#define BAUD150 		0x20
#define BAUD300 		0x40
#define BAUD600 		0x60
#define BAUD1200 		0x80
#define BAUD2400 		0xA0
#define BAUD4800 		0xC0
#define BAUD9600 		0xE0

#define ESC     		0x1B    	/* ASCII Escape character 		*/
#define RSBUFSIZE		10000			/* RS232 buffer size     		*/

#define COM1BASE  		0x3F8   	/* Base port address for COM1	*/

#define TXDATA 			COM1BASE   /* Transmit register 				*/
#define RXR      		COM1BASE   		/* Receive register  	*/
#define IER      		(COM1BASE+1)   	/* Interrupt Enable 	*/
#define IIR     		(COM1BASE+2)    	/* Interrupt ID    	*/
#define LCR       		(COM1BASE+3)   	/* Line control   		*/
#define MCR       		(COM1BASE+4)  	/* Line control   		*/
#define LSR      		(COM1BASE+5) 		/* Line Status     	*/

#define RX_ID     		0x04
#define RX_MASK   		0x07
#define MC_INT	  		0x08

/*	Addresses of the 8259 Programmable Interrupt Controller (PIC).*/

#define IMR       		0x21   /* Interrupt Mask Register port	*/
#define ICR       		0x20   /* Interrupt Control Port      	*/

/*	An end of interrupt needs to be sent to the Control Port of	*/
/*	the 8259 when a hardware interrupt ends. 							*/
#define EOI       		0x20   /* End Of Interrupt 					*/

#define IRQ4      		0xEF  /* COM1 */