1 /* $NetBSD: ite_dv.c,v 1.11 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 $Hdr: ite_dv.c 1.2 92/01/20$ 37 * 38 * @(#)ite_dv.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_dvreg.h> 47 48 #include <hp300/stand/common/samachdep.h> 49 #include <hp300/stand/common/itevar.h> 50 51 static void dv_reset(struct dvboxfb *); 52 static void dvbox_windowmove(struct ite_data *, int, int, int, int, 53 int, int, int); 54 55 void 56 dvbox_init(struct ite_data *ip) 57 { 58 struct dvboxfb *regbase; 59 int i; 60 61 ip->bmv = dvbox_windowmove; 62 regbase = (void *)ip->regbase; 63 dv_reset(regbase); 64 DELAY(4000); 65 66 /* 67 * Turn on frame buffer, turn on overlay planes, set replacement 68 * rule, enable top overlay plane writes for ite, disable all frame 69 * buffer planes, set byte per pixel, and display frame buffer 0. 70 * Lastly, turn on the box. 71 */ 72 regbase->interrupt = 0x04; 73 regbase->drive = 0x10; 74 regbase->rep_rule = RR_COPY << 4 | RR_COPY; 75 regbase->opwen = 0x01; 76 regbase->fbwen = 0x0; 77 regbase->fold = 0x01; 78 regbase->vdrive = 0x0; 79 regbase->dispen = 0x01; 80 81 /* 82 * Video enable top overlay plane. 83 */ 84 regbase->opvenp = 0x01; 85 regbase->opvens = 0x01; 86 87 /* 88 * Make sure that overlay planes override frame buffer planes. 89 */ 90 regbase->ovly0p = 0x0; 91 regbase->ovly0s = 0x0; 92 regbase->ovly1p = 0x0; 93 regbase->ovly1s = 0x0; 94 regbase->fv_trig = 0x1; 95 DELAY(400); 96 97 /* 98 * Setup the overlay colormaps. Need to set the 0,1 (black/white) 99 * color for both banks. 100 */ 101 102 for (i = 0; i <= 1; i++) { 103 regbase->cmapbank = i; 104 regbase->rgb[0].red = 0x00; 105 regbase->rgb[0].green = 0x00; 106 regbase->rgb[0].blue = 0x00; 107 regbase->rgb[1].red = 0xFF; 108 regbase->rgb[1].green = 0xFF; 109 regbase->rgb[1].blue = 0xFF; 110 } 111 112 regbase->cmapbank = 0; 113 114 db_waitbusy(regbase); 115 116 ite_fontinfo(ip); 117 ite_fontinit8bpp(ip); 118 119 /* 120 * Clear the (visible) framebuffer. 121 */ 122 dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR); 123 db_waitbusy(regbase); 124 125 /* 126 * Stash the inverted cursor. 127 */ 128 dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '), 129 ip->cblanky, ip->cblankx, ip->ftheight, 130 ip->ftwidth, RR_COPYINVERTED); 131 db_waitbusy(regbase); 132 } 133 134 static void 135 dvbox_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx, int h, 136 int w, int func) 137 { 138 struct dvboxfb *dp = (void *)ip->regbase; 139 140 if (h == 0 || w == 0) 141 return; 142 143 db_waitbusy(dp); 144 dp->rep_rule = func << 4 | func; 145 dp->source_y = sy; 146 dp->source_x = sx; 147 dp->dest_y = dy; 148 dp->dest_x = dx; 149 dp->wheight = h; 150 dp->wwidth = w; 151 dp->wmove = 1; 152 } 153 154 static void 155 dv_reset(struct dvboxfb *dbp) 156 { 157 158 dbp->reset = 0x80; 159 DELAY(400); 160 161 dbp->interrupt = 0x04; 162 dbp->en_scan = 0x01; 163 dbp->fbwen = ~0; 164 dbp->opwen = ~0; 165 dbp->fold = 0x01; 166 dbp->drive = 0x01; 167 dbp->rep_rule = 0x33; 168 dbp->alt_rr = 0x33; 169 dbp->zrr = 0x33; 170 171 dbp->fbvenp = 0xFF; 172 dbp->dispen = 0x01; 173 dbp->fbvens = 0x0; 174 dbp->fv_trig = 0x01; 175 DELAY(400); 176 dbp->vdrive = 0x0; 177 dbp->zconfig = 0x0; 178 179 while (dbp->wbusy & 0x01) 180 DELAY(400); 181 182 /* 183 * Start of missing ROM code. 184 */ 185 dbp->cmapbank = 0; 186 187 dbp->red0 = 0; 188 dbp->red1 = 0; 189 dbp->green0 = 0; 190 dbp->green1 = 0; 191 dbp->blue0 = 0; 192 dbp->blue1 = 0; 193 194 dbp->panxh = 0; 195 dbp->panxl = 0; 196 dbp->panyh = 0; 197 dbp->panyl = 0; 198 dbp->zoom = 0; 199 dbp->cdwidth = 0x50; 200 dbp->chstart = 0x52; 201 dbp->cvwidth = 0x22; 202 dbp->pz_trig = 1; 203 /* 204 * End of missing ROM code. 205 */ 206 } 207 #endif 208
Indexes created Mon Sep 22 10:09:38 GMT 2025