/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * Redistribution is only permitted until one year after the first shipment
 * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
 * binary forms are permitted provided that: (1) source distributions retain
 * this entire copyright notice and comment, and (2) distributions including
 * binaries display the following acknowledgement:  This product includes
 * software developed by the University of California, Berkeley and its
 * contributors'' in the documentation or other materials provided with the
 * distribution and in all advertising materials mentioning features or use
 * of this software.  Neither the name of the University nor the names of
 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * from: Utah $Hdr: ite_tc.c 1.9 89/02/20$
 *
 *	@(#)ite_tc.c	7.1 (Berkeley) 5/8/90
 */

#include "samachdep.h"

#ifdef ITECONSOLE

#include "param.h"
#include "../hpdev/itevar.h"
#include "../hpdev/itereg.h"
#include "../hpdev/grfvar.h"
#include "../hpdev/grf_tcreg.h"

#define REGBASE	    	((struct tcboxfb *)(ip->regbase))
#define WINDOWMOVER 	topcat_windowmove

topcat_init(ip)
	register struct ite_softc *ip;
{

	/*
	 * Determine the number of planes by writing to the first frame
	 * buffer display location, then reading it back. 
	 */
	REGBASE->wen = ~0;
	REGBASE->fben = ~0;
	REGBASE->prr = RR_COPY;
	*FBBASE = 0xFF;
	ip->planemask = *FBBASE;

	/*
	 * Enable reading/writing of all the planes.
	 */
	REGBASE->fben = ip->planemask;
	REGBASE->wen  = ip->planemask;
	REGBASE->ren  = ip->planemask;
	REGBASE->prr  = RR_COPY;

	ite_devinfo(ip);

	/*
	 * Clear the framebuffer on all planes.
	 */
	topcat_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
	tc_waitbusy(REGADDR, ip->planemask);

	ite_fontinit(ip);

	/*
	 * Stash the inverted cursor.
	 */
	topcat_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
			  ip->cblanky, ip->cblankx, ip->ftheight,
			  ip->ftwidth, RR_COPYINVERTED);
}

topcat_putc(ip, c, dy, dx, mode)
	register struct ite_softc *ip;
        register int dy, dx;
	int c, mode;
{
	topcat_windowmove(ip, charY(ip, c), charX(ip, c),
			  dy * ip->ftheight, dx * ip->ftwidth,
			  ip->ftheight, ip->ftwidth, RR_COPY);
}

topcat_cursor(ip, flag)
	register struct ite_softc *ip;
        register int flag;
{
	if (flag == DRAW_CURSOR)
		draw_cursor(ip)
	else if (flag == MOVE_CURSOR) {
		erase_cursor(ip)
		draw_cursor(ip)
	}
	else
		erase_cursor(ip)
}

topcat_clear(ip, sy, sx, h, w)
	struct ite_softc *ip;
	register int sy, sx, h, w;
{
	topcat_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
			  sy * ip->ftheight, sx * ip->ftwidth, 
			  h  * ip->ftheight, w  * ip->ftwidth,
			  RR_CLEAR);
}

topcat_scroll(ip, sy, sx, count, dir)
        register struct ite_softc *ip;
        register int sy, count;
        int dir, sx;
{
	register int dy = sy - count;
	register int height = ip->rows - sy;

	topcat_cursor(ip, ERASE_CURSOR);

	topcat_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
			  dy * ip->ftheight, sx * ip->ftwidth,
			  height * ip->ftheight,
			  ip->cols  * ip->ftwidth, RR_COPY);
}

topcat_windowmove(ip, sy, sx, dy, dx, h, w, func)
	struct ite_softc *ip;
	int sy, sx, dy, dx, h, w, func;
{
  	register struct tcboxfb *rp = REGBASE;
	
	if (h == 0 || w == 0)
		return;
	tc_waitbusy(REGADDR, ip->planemask);
	rp->wmrr     = func;
	rp->source_y = sy;
	rp->source_x = sx;
	rp->dest_y   = dy;
	rp->dest_x   = dx;
	rp->wheight  = h;
	rp->wwidth   = w;
	rp->wmove    = ip->planemask;
}
#endif