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      1 /*	$NetBSD: ite_tc.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 $Hdr: ite_tc.c 1.11 92/01/20$
     37  *
     38  *	@(#)ite_tc.c	8.1 (Berkeley) 6/10/93
     39  */
     40 
     41 #ifdef ITECONSOLE
     42 
     43 #include <sys/param.h>
     44 
     45 #include <hp300/dev/diofbreg.h>
     46 #include <hp300/stand/common/itereg.h>
     47 #include <hp300/stand/common/grf_tcreg.h>
     48 
     49 #include <hp300/stand/common/samachdep.h>
     50 #include <hp300/stand/common/itevar.h>
     51 
     52 static void topcat_windowmove(struct ite_data *, int, int, int, int,
     53     int, int, int);
     54 
     55 void
     56 topcat_init(struct ite_data *ip)
     57 {
     58 	struct tcboxfb *regbase = (void *)ip->regbase;
     59 
     60 	ip->bmv = topcat_windowmove;
     61 
     62 	/*
     63 	 * Catseye looks a lot like a topcat, but not completely.
     64 	 * So, we set some bits to make it work.
     65 	 */
     66 	if (regbase->fbid != GID_TOPCAT) {
     67 		while ((regbase->catseye_status & 1))
     68 			;
     69 		regbase->catseye_status = 0x0;
     70 		regbase->vb_select      = 0x0;
     71 		regbase->tcntrl         = 0x0;
     72 		regbase->acntrl         = 0x0;
     73 		regbase->pncntrl        = 0x0;
     74 		regbase->rug_cmdstat    = 0x90;
     75 	}
     76 
     77 	/*
     78 	 * Determine the number of planes by writing to the first frame
     79 	 * buffer display location, then reading it back.
     80 	 */
     81 	regbase->wen = ~0;
     82 	regbase->fben = ~0;
     83 	regbase->prr = RR_COPY;
     84 	*FBBASE = 0xFF;
     85 	ip->planemask = *FBBASE;
     86 
     87 	/*
     88 	 * Enable reading/writing of all the planes.
     89 	 */
     90 	regbase->fben = ip->planemask;
     91 	regbase->wen  = ip->planemask;
     92 	regbase->ren  = ip->planemask;
     93 	regbase->prr  = RR_COPY;
     94 
     95 	ite_fontinfo(ip);
     96 
     97 	/*
     98 	 * Clear the framebuffer on all planes.
     99 	 */
    100 	topcat_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
    101 	tc_waitbusy(regbase, ip->planemask);
    102 
    103 	ite_fontinit8bpp(ip);
    104 
    105 	/*
    106 	 * Stash the inverted cursor.
    107 	 */
    108 	topcat_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
    109 			  ip->cblanky, ip->cblankx, ip->ftheight,
    110 			  ip->ftwidth, RR_COPYINVERTED);
    111 }
    112 
    113 static void
    114 topcat_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx, int h,
    115     int w, int func)
    116 {
    117 	struct tcboxfb *rp = (void *)ip->regbase;
    118 
    119 	if (h == 0 || w == 0)
    120 		return;
    121 	tc_waitbusy(rp, ip->planemask);
    122 	rp->wmrr     = func;
    123 	rp->source_y = sy;
    124 	rp->source_x = sx;
    125 	rp->dest_y   = dy;
    126 	rp->dest_x   = dx;
    127 	rp->wheight  = h;
    128 	rp->wwidth   = w;
    129 	rp->wmove    = ip->planemask;
    130 }
    131 #endif
    132