xref: /src/sys/arch/hp300/stand/common/ite_rb.c

/*	$NetBSD: ite_rb.c,v 1.12 2025/05/27 18:02:58 tsutsui Exp $	*/

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990, 1993
 *	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 and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * from: Utah $Hdr: ite_rb.c 1.6 92/01/20$
 *
 *	@(#)ite_rb.c	8.1 (Berkeley) 6/10/93
 */

#ifdef ITECONSOLE

#include <sys/param.h>

#include <hp300/stand/common/itereg.h>
#include <hp300/stand/common/grf_rbreg.h>

#include <hp300/stand/common/samachdep.h>
#include <hp300/stand/common/itevar.h>

static void rbox_windowmove(struct ite_data *, int, int, int, int,
    int, int, int);

void
rbox_init(struct ite_data *ip)
{
	struct rboxfb *regbase = (void *)ip->regbase;
	int i;

	ip->bmv = rbox_windowmove;

	rb_waitbusy(regbase);
	DELAY(3000);

	regbase->interrupt = 0x04;
	regbase->display_enable = 0x01;
	regbase->video_enable = 0x01;
	regbase->drive = 0x01;
	regbase->vdrive = 0x0;

	ite_fontinfo(ip);

	regbase->opwen = 0xFF;

	/*
	 * Clear the framebuffer.
	 */
	rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
	rb_waitbusy(regbase);

	for(i = 0; i < 16; i++) {
		*((char *)ip->regbase + 0x63c3 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x6403 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x6803 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x6c03 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x73c3 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x7403 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x7803 + i * 4) = 0x0;
		*((char *)ip->regbase + 0x7c03 + i * 4) = 0x0;
	}

	regbase->rep_rule = 0x33;

	/*
	 * I cannot figure out how to make the blink planes stop. So, we
	 * must set both colormaps so that when the planes blink, and
	 * the secondary colormap is active, we still get text.
	 */
	CM1RED[0x00].value = 0x00;
	CM1GRN[0x00].value = 0x00;
	CM1BLU[0x00].value = 0x00;
	CM1RED[0x01].value = 0xFF;
	CM1GRN[0x01].value = 0xFF;
	CM1BLU[0x01].value = 0xFF;

	CM2RED[0x00].value = 0x00;
	CM2GRN[0x00].value = 0x00;
	CM2BLU[0x00].value = 0x00;
	CM2RED[0x01].value = 0xFF;
	CM2GRN[0x01].value = 0xFF;
	CM2BLU[0x01].value = 0xFF;

	regbase->blink = 0x00;
	regbase->write_enable = 0x01;
	regbase->opwen = 0x00;

	ite_fontinit8bpp(ip);

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

static void
rbox_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx, int h,
    int w, int func)
{
	struct rboxfb *rp = (void *)ip->regbase;

	if (h == 0 || w == 0)
		return;

	rb_waitbusy(rp);
	rp->rep_rule = func << 4 | 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 = 1;
}
#endif