ite_rh.c revision 1.7
1 /* $NetBSD: ite_rh.c,v 1.7 1996/04/23 22:53:05 veego Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Markus Wild 5 * Copyright (c) 1994 Lutz Vieweg 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Lutz Vieweg. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #include "grfrh.h" 34 #if NGRFRH > 0 35 36 #include <sys/param.h> 37 #include <sys/conf.h> 38 #include <sys/proc.h> 39 #include <sys/device.h> 40 #include <sys/ioctl.h> 41 #include <sys/tty.h> 42 #include <sys/systm.h> 43 #include <dev/cons.h> 44 #include <machine/cpu.h> 45 #include <amiga/amiga/device.h> 46 #include <amiga/dev/grfioctl.h> 47 #include <amiga/dev/grfvar.h> 48 #include <amiga/dev/grf_rhreg.h> 49 #include <amiga/dev/itevar.h> 50 51 #ifdef RETINA_SPEED_HACK 52 static void screen_up __P((struct ite_softc *, int, int, int)); 53 static void screen_down __P((struct ite_softc *, int, int, int)); 54 #endif 55 56 /* 57 * grfrh_cnprobe is called when the console is being initialized 58 * i.e. very early. grfconfig() has been called, so this implies 59 * that rt_init() was called. If we are functioning rh_inited 60 * will be true. 61 */ 62 int 63 grfrh_cnprobe() 64 { 65 static int done; 66 int rv; 67 68 if (done == 0) 69 rv = CN_INTERNAL; 70 else 71 rv = CN_NORMAL; 72 done = 1; 73 return(rv); 74 } 75 76 77 void 78 grfrh_iteinit(gp) 79 struct grf_softc *gp; 80 { 81 gp->g_iteinit = rh_init; 82 gp->g_itedeinit = rh_deinit; 83 gp->g_iteclear = rh_clear; 84 gp->g_iteputc = rh_putc; 85 gp->g_itescroll = rh_scroll; 86 gp->g_itecursor = rh_cursor; 87 } 88 89 90 void 91 rh_init(ip) 92 struct ite_softc *ip; 93 { 94 struct MonDef *md; 95 96 #if 0 /* Not in ite_rt.c - DC */ 97 if (ip->grf == 0) 98 ip->grf = &grf_softc[ip - ite_softc]; 99 #endif 100 101 ip->priv = ip->grf->g_data; 102 md = (struct MonDef *) ip->priv; 103 104 ip->cols = md->TX; 105 ip->rows = md->TY; 106 } 107 108 109 void 110 rh_cursor(ip, flag) 111 struct ite_softc *ip; 112 int flag; 113 { 114 #if 0 115 volatile u_char *ba = ip->grf->g_regkva; 116 #endif 117 118 if (flag == START_CURSOROPT || flag == END_CURSOROPT) 119 return; 120 121 if (flag == ERASE_CURSOR) { 122 #if 0 123 /* disable cursor */ 124 WCrt (ba, CRT_ID_CURSOR_START, 125 RCrt (ba, CRT_ID_CURSOR_START) | 0x20); 126 #endif 127 } else { 128 int pos = ip->curx + ip->cury * ip->cols; 129 #if 0 130 /* make sure to enable cursor */ 131 WCrt (ba, CRT_ID_CURSOR_START, 132 RCrt (ba, CRT_ID_CURSOR_START) & ~0x20); 133 #endif 134 135 /* and position it */ 136 RZ3SetCursorPos (ip->grf, pos); 137 138 ip->cursorx = ip->curx; 139 ip->cursory = ip->cury; 140 } 141 } 142 143 144 #ifdef RETINA_SPEED_HACK 145 static void 146 screen_up(ip, top, bottom, lines) 147 struct ite_softc *ip; 148 int top; 149 int bottom; 150 int lines; 151 { 152 153 /* do some bounds-checking here.. */ 154 if (top >= bottom) 155 return; 156 157 if (top + lines >= bottom) { 158 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 159 return; 160 } 161 162 RZ3AlphaCopy(ip->grf, 0, top+lines, 0, top, ip->cols, bottom-top-lines+1); 163 RZ3AlphaErase(ip->grf, 0, bottom - lines + 1, ip->cols, lines); 164 } 165 166 167 static void 168 screen_down (ip, top, bottom, lines) 169 struct ite_softc *ip; 170 int top; 171 int bottom; 172 int lines; 173 { 174 175 /* do some bounds-checking here.. */ 176 if (top >= bottom) 177 return; 178 179 if (top + lines >= bottom) { 180 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 181 return; 182 } 183 184 RZ3AlphaCopy(ip->grf, 0, top, 0, top+lines, ip->cols, bottom-top-lines+1); 185 RZ3AlphaErase(ip->grf, 0, top, ip->cols, lines); 186 } 187 #endif /* RETINA_SPEED_HACK */ 188 189 190 void 191 rh_deinit(ip) 192 struct ite_softc *ip; 193 { 194 ip->flags &= ~ITE_INITED; 195 } 196 197 198 void 199 rh_putc(ip, c, dy, dx, mode) 200 struct ite_softc *ip; 201 int c; 202 int dy; 203 int dx; 204 int mode; 205 { 206 volatile u_char * fb = ip->grf->g_fbkva; 207 register u_char attr; 208 209 attr = (mode & ATTR_INV) ? 0x21 : 0x10; 210 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 211 if (mode & ATTR_BOLD) attr |= 0x08; 212 if (mode & ATTR_BLINK) attr |= 0x80; 213 214 fb += 4 * (dy * ip->cols + dx); 215 *fb++ = c; *fb = attr; 216 } 217 218 219 void 220 rh_clear(ip, sy, sx, h, w) 221 struct ite_softc *ip; 222 int sy; 223 int sx; 224 int h; 225 int w; 226 { 227 RZ3AlphaErase (ip->grf, sx, sy, w, h); 228 } 229 230 231 /* 232 * RETINA_SPEED_HACK code seems to work on some boards and on others 233 * it causes text to smear horizontally 234 */ 235 void 236 rh_scroll(ip, sy, sx, count, dir) 237 struct ite_softc *ip; 238 int sy; 239 int sx; 240 int count; 241 int dir; 242 { 243 #ifndef RETINA_SPEED_HACK 244 u_long * fb = (u_long *) ip->grf->g_fbkva; 245 #endif 246 247 rh_cursor(ip, ERASE_CURSOR); 248 249 if (dir == SCROLL_UP) { 250 #ifdef RETINA_SPEED_HACK 251 screen_up(ip, sy - count, ip->bottom_margin, count); 252 #else 253 bcopy(fb + sy * ip->cols, fb + (sy - count) * ip->cols, 254 4 * (ip->bottom_margin - sy + 1) * ip->cols); 255 rh_clear(ip, ip->bottom_margin + 1 - count, 0, count, ip->cols); 256 #endif 257 } else if (dir == SCROLL_DOWN) { 258 #ifdef RETINA_SPEED_HACK 259 screen_down(ip, sy, ip->bottom_margin, count); 260 #else 261 bcopy(fb + sy * ip->cols, fb + (sy + count) * ip->cols, 262 4 * (ip->bottom_margin - sy - count + 1) * ip->cols); 263 rh_clear(ip, sy, 0, count, ip->cols); 264 #endif 265 } else if (dir == SCROLL_RIGHT) { 266 RZ3AlphaCopy(ip->grf, sx, sy, sx + count, sy, 267 ip->cols - (sx + count), 1); 268 RZ3AlphaErase(ip->grf, sx, sy, count, 1); 269 } else { 270 RZ3AlphaCopy(ip->grf, sx + count, sy, sx, sy, 271 ip->cols - (sx + count), 1); 272 RZ3AlphaErase(ip->grf, ip->cols - count, sy, count, 1); 273 } 274 #ifndef RETINA_SPEED_HACK 275 rh_cursor(ip, !ERASE_CURSOR); 276 #endif 277 } 278 #endif /* NGRFRH */ 279
Indexes created Wed Oct 01 19:09:53 GMT 2025