/***********************************************************************
 * pport.h
 *
 * Declarations and prototypes for pport.cpp.  See pport.cpp for
 * supporting documentation.
 ***********************************************************************/

#ifndef __PPORT_H
#define __PPORT_H


/* Assume we're accessing parallel port 1 at the standard I/O address
 * of 0x378.
 */
#define PORT_BASE 0x378
#define STATUS_OFFSET 1
#define CONTROL_OFFSET 2

/* Various masks necessary for dealing with inversions on the parallel
 * port and the XS40 board.
 */
#define DATA_MASK 0x03
#define STATUS_MASK 0x00
#define CONTROL_MASK 0x09


/* Prototypes. */

void writeDataReg(unsigned char d);
unsigned char readStatusReg(void);
void writeControlReg(unsigned char c);

#endif