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      1 /*	$NetBSD: ite_rb.c,v 1.12 2025/05/27 18:02:58 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah $Hdr: ite_rb.c 1.6 92/01/20$
     37  *
     38  *	@(#)ite_rb.c	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #ifdef ITECONSOLE
     42 
     43 #include <sys/param.h>
     44 
     45 #include <hp300/stand/common/itereg.h>
     46 #include <hp300/stand/common/grf_rbreg.h>
     47 
     48 #include <hp300/stand/common/samachdep.h>
     49 #include <hp300/stand/common/itevar.h>
     50 
     51 static void rbox_windowmove(struct ite_data *, int, int, int, int,
     52     int, int, int);
     53 
     54 void
     55 rbox_init(struct ite_data *ip)
     56 {
     57 	struct rboxfb *regbase = (void *)ip->regbase;
     58 	int i;
     59 
     60 	ip->bmv = rbox_windowmove;
     61 
     62 	rb_waitbusy(regbase);
     63 	DELAY(3000);
     64 
     65 	regbase->interrupt = 0x04;
     66 	regbase->display_enable = 0x01;
     67 	regbase->video_enable = 0x01;
     68 	regbase->drive = 0x01;
     69 	regbase->vdrive = 0x0;
     70 
     71 	ite_fontinfo(ip);
     72 
     73 	regbase->opwen = 0xFF;
     74 
     75 	/*
     76 	 * Clear the framebuffer.
     77 	 */
     78 	rbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
     79 	rb_waitbusy(regbase);
     80 
     81 	for(i = 0; i < 16; i++) {
     82 		*((char *)ip->regbase + 0x63c3 + i * 4) = 0x0;
     83 		*((char *)ip->regbase + 0x6403 + i * 4) = 0x0;
     84 		*((char *)ip->regbase + 0x6803 + i * 4) = 0x0;
     85 		*((char *)ip->regbase + 0x6c03 + i * 4) = 0x0;
     86 		*((char *)ip->regbase + 0x73c3 + i * 4) = 0x0;
     87 		*((char *)ip->regbase + 0x7403 + i * 4) = 0x0;
     88 		*((char *)ip->regbase + 0x7803 + i * 4) = 0x0;
     89 		*((char *)ip->regbase + 0x7c03 + i * 4) = 0x0;
     90 	}
     91 
     92 	regbase->rep_rule = 0x33;
     93 
     94 	/*
     95 	 * I cannot figure out how to make the blink planes stop. So, we
     96 	 * must set both colormaps so that when the planes blink, and
     97 	 * the secondary colormap is active, we still get text.
     98 	 */
     99 	CM1RED[0x00].value = 0x00;
    100 	CM1GRN[0x00].value = 0x00;
    101 	CM1BLU[0x00].value = 0x00;
    102 	CM1RED[0x01].value = 0xFF;
    103 	CM1GRN[0x01].value = 0xFF;
    104 	CM1BLU[0x01].value = 0xFF;
    105 
    106 	CM2RED[0x00].value = 0x00;
    107 	CM2GRN[0x00].value = 0x00;
    108 	CM2BLU[0x00].value = 0x00;
    109 	CM2RED[0x01].value = 0xFF;
    110 	CM2GRN[0x01].value = 0xFF;
    111 	CM2BLU[0x01].value = 0xFF;
    112 
    113 	regbase->blink = 0x00;
    114 	regbase->write_enable = 0x01;
    115 	regbase->opwen = 0x00;
    116 
    117 	ite_fontinit8bpp(ip);
    118 
    119 	/*
    120 	 * Stash the inverted cursor.
    121 	 */
    122 	rbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
    123 			    ip->cblanky, ip->cblankx, ip->ftheight,
    124 			    ip->ftwidth, RR_COPYINVERTED);
    125 }
    126 
    127 static void
    128 rbox_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx, int h,
    129     int w, int func)
    130 {
    131 	struct rboxfb *rp = (void *)ip->regbase;
    132 
    133 	if (h == 0 || w == 0)
    134 		return;
    135 
    136 	rb_waitbusy(rp);
    137 	rp->rep_rule = func << 4 | func;
    138 	rp->source_y = sy;
    139 	rp->source_x = sx;
    140 	rp->dest_y = dy;
    141 	rp->dest_x = dx;
    142 	rp->wheight = h;
    143 	rp->wwidth  = w;
    144 	rp->wmove = 1;
    145 }
    146 #endif
    147