1 /* 2 * Copyright (c) 1988 University of Utah. 3 * Copyright (c) 1990, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * the Systems Programming Group of the University of Utah Computer 8 * Science Department. 9 * 10 * %sccs.include.redist.c% 11 * 12 * from: Utah $Hdr: ite_dv.c 1.2 92/01/20$ 13 * 14 * @(#)ite_dv.c 8.1 (Berkeley) 06/10/93 15 */ 16 17 #include <hp300/stand/samachdep.h> 18 19 #ifdef ITECONSOLE 20 21 #include <sys/param.h> 22 #include <hp/dev/itevar.h> 23 #include <hp/dev/itereg.h> 24 #include <hp300/dev/grf_dvreg.h> 25 26 #define REGBASE ((struct dvboxfb *)(ip->regbase)) 27 #define WINDOWMOVER dvbox_windowmove 28 29 dvbox_init(ip) 30 struct ite_softc *ip; 31 { 32 int i; 33 34 dv_reset(ip->regbase); 35 DELAY(4000); 36 37 /* 38 * Turn on frame buffer, turn on overlay planes, set replacement 39 * rule, enable top overlay plane writes for ite, disable all frame 40 * buffer planes, set byte per pixel, and display frame buffer 0. 41 * Lastly, turn on the box. 42 */ 43 REGBASE->interrupt = 0x04; 44 REGBASE->drive = 0x10; 45 REGBASE->rep_rule = RR_COPY << 4 | RR_COPY; 46 REGBASE->opwen = 0x01; 47 REGBASE->fbwen = 0x0; 48 REGBASE->fold = 0x01; 49 REGBASE->vdrive = 0x0; 50 REGBASE->dispen = 0x01; 51 52 /* 53 * Video enable top overlay plane. 54 */ 55 REGBASE->opvenp = 0x01; 56 REGBASE->opvens = 0x01; 57 58 /* 59 * Make sure that overlay planes override frame buffer planes. 60 */ 61 REGBASE->ovly0p = 0x0; 62 REGBASE->ovly0s = 0x0; 63 REGBASE->ovly1p = 0x0; 64 REGBASE->ovly1s = 0x0; 65 REGBASE->fv_trig = 0x1; 66 DELAY(400); 67 68 /* 69 * Setup the overlay colormaps. Need to set the 0,1 (black/white) 70 * color for both banks. 71 */ 72 73 for (i = 0; i <= 1; i++) { 74 REGBASE->cmapbank = i; 75 REGBASE->rgb[0].red = 0x00; 76 REGBASE->rgb[0].green = 0x00; 77 REGBASE->rgb[0].blue = 0x00; 78 REGBASE->rgb[1].red = 0xFF; 79 REGBASE->rgb[1].green = 0xFF; 80 REGBASE->rgb[1].blue = 0xFF; 81 } 82 REGBASE->cmapbank = 0; 83 84 db_waitbusy(ip->regbase); 85 86 ite_fontinfo(ip); 87 ite_fontinit(ip); 88 89 /* 90 * Clear the (visible) framebuffer. 91 */ 92 dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR); 93 db_waitbusy(ip->regbase); 94 95 /* 96 * Stash the inverted cursor. 97 */ 98 dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '), 99 ip->cblanky, ip->cblankx, ip->ftheight, 100 ip->ftwidth, RR_COPYINVERTED); 101 db_waitbusy(ip->regbase); 102 } 103 104 dvbox_putc(ip, c, dy, dx, mode) 105 register struct ite_softc *ip; 106 register int dy, dx; 107 int c, mode; 108 { 109 dvbox_windowmove(ip, charY(ip, c), charX(ip, c), 110 dy * ip->ftheight, dx * ip->ftwidth, 111 ip->ftheight, ip->ftwidth, RR_COPY); 112 } 113 114 dvbox_cursor(ip, flag) 115 register struct ite_softc *ip; 116 register int flag; 117 { 118 if (flag == DRAW_CURSOR) 119 draw_cursor(ip) 120 else if (flag == MOVE_CURSOR) { 121 erase_cursor(ip) 122 draw_cursor(ip) 123 } 124 else 125 erase_cursor(ip) 126 } 127 128 dvbox_clear(ip, sy, sx, h, w) 129 struct ite_softc *ip; 130 register int sy, sx, h, w; 131 { 132 dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth, 133 sy * ip->ftheight, sx * ip->ftwidth, 134 h * ip->ftheight, w * ip->ftwidth, 135 RR_CLEAR); 136 } 137 138 dvbox_scroll(ip, sy, sx, count, dir) 139 register struct ite_softc *ip; 140 register int sy, count; 141 int dir, sx; 142 { 143 register int dy = sy - count; 144 register int height = ip->rows - sy; 145 146 dvbox_cursor(ip, ERASE_CURSOR); 147 148 dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth, 149 dy * ip->ftheight, sx * ip->ftwidth, 150 height * ip->ftheight, 151 ip->cols * ip->ftwidth, RR_COPY); 152 } 153 154 dvbox_windowmove(ip, sy, sx, dy, dx, h, w, func) 155 struct ite_softc *ip; 156 int sy, sx, dy, dx, h, w, func; 157 { 158 register struct dvboxfb *dp = REGBASE; 159 if (h == 0 || w == 0) 160 return; 161 162 db_waitbusy(ip->regbase); 163 dp->rep_rule = func << 4 | func; 164 dp->source_y = sy; 165 dp->source_x = sx; 166 dp->dest_y = dy; 167 dp->dest_x = dx; 168 dp->wheight = h; 169 dp->wwidth = w; 170 dp->wmove = 1; 171 } 172 173 dv_reset(dbp) 174 register struct dvboxfb *dbp; 175 { 176 dbp->reset = 0x80; 177 DELAY(400); 178 179 dbp->interrupt = 0x04; 180 dbp->en_scan = 0x01; 181 dbp->fbwen = ~0; 182 dbp->opwen = ~0; 183 dbp->fold = 0x01; 184 dbp->drive = 0x01; 185 dbp->rep_rule = 0x33; 186 dbp->alt_rr = 0x33; 187 dbp->zrr = 0x33; 188 189 dbp->fbvenp = 0xFF; 190 dbp->dispen = 0x01; 191 dbp->fbvens = 0x0; 192 dbp->fv_trig = 0x01; 193 DELAY(400); 194 dbp->vdrive = 0x0; 195 dbp->zconfig = 0x0; 196 197 while (dbp->wbusy & 0x01) 198 DELAY(400); 199 200 /* 201 * Start of missing ROM code. 202 */ 203 dbp->cmapbank = 0; 204 205 dbp->red0 = 0; 206 dbp->red1 = 0; 207 dbp->green0 = 0; 208 dbp->green1 = 0; 209 dbp->blue0 = 0; 210 dbp->blue1 = 0; 211 212 dbp->panxh = 0; 213 dbp->panxl = 0; 214 dbp->panyh = 0; 215 dbp->panyl = 0; 216 dbp->zoom = 0; 217 dbp->cdwidth = 0x50; 218 dbp->chstart = 0x52; 219 dbp->cvwidth = 0x22; 220 dbp->pz_trig = 1; 221 /* 222 * End of missing ROM code. 223 */ 224 } 225 226 #endif 227