ite_rh.c revision 1.6
1 /* $NetBSD: ite_rh.c,v 1.6 1996/04/21 21:12:00 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 static void screen_up __P((struct ite_softc *, int, int, int)); 52 static void screen_down __P((struct ite_softc *, int, int, int)); 53 54 /* 55 * grfrh_cnprobe is called when the console is being initialized 56 * i.e. very early. grfconfig() has been called, so this implies 57 * that rt_init() was called. If we are functioning rh_inited 58 * will be true. 59 */ 60 int 61 grfrh_cnprobe() 62 { 63 static int done; 64 int rv; 65 66 if (done == 0) 67 rv = CN_INTERNAL; 68 else 69 rv = CN_NORMAL; 70 done = 1; 71 return(rv); 72 } 73 74 void 75 grfrh_iteinit(gp) 76 struct grf_softc *gp; 77 { 78 gp->g_iteinit = rh_init; 79 gp->g_itedeinit = rh_deinit; 80 gp->g_iteclear = rh_clear; 81 gp->g_iteputc = rh_putc; 82 gp->g_itescroll = rh_scroll; 83 gp->g_itecursor = rh_cursor; 84 } 85 86 void 87 rh_init(ip) 88 struct ite_softc *ip; 89 { 90 struct MonDef *md; 91 92 #if 0 /* Not in ite_rt.c - DC */ 93 if (ip->grf == 0) 94 ip->grf = &grf_softc[ip - ite_softc]; 95 #endif 96 97 ip->priv = ip->grf->g_data; 98 md = (struct MonDef *) ip->priv; 99 100 ip->cols = md->TX; 101 ip->rows = md->TY; 102 } 103 104 105 void 106 rh_cursor(ip, flag) 107 struct ite_softc *ip; 108 int flag; 109 { 110 #if 0 111 volatile u_char *ba = ip->grf->g_regkva; 112 #endif 113 114 if (flag == START_CURSOROPT || flag == END_CURSOROPT) 115 return; 116 117 if (flag == ERASE_CURSOR) { 118 #if 0 119 /* disable cursor */ 120 WCrt (ba, CRT_ID_CURSOR_START, 121 RCrt (ba, CRT_ID_CURSOR_START) | 0x20); 122 #endif 123 } else { 124 int pos = ip->curx + ip->cury * ip->cols; 125 #if 0 126 /* make sure to enable cursor */ 127 WCrt (ba, CRT_ID_CURSOR_START, 128 RCrt (ba, CRT_ID_CURSOR_START) & ~0x20); 129 #endif 130 131 /* and position it */ 132 RZ3SetCursorPos (ip->grf, pos); 133 134 ip->cursorx = ip->curx; 135 ip->cursory = ip->cury; 136 } 137 } 138 139 140 141 static void 142 screen_up(ip, top, bottom, lines) 143 struct ite_softc *ip; 144 int top; 145 int bottom; 146 int lines; 147 { 148 149 /* do some bounds-checking here.. */ 150 if (top >= bottom) 151 return; 152 153 if (top + lines >= bottom) { 154 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 155 return; 156 } 157 158 RZ3AlphaCopy(ip->grf, 0, top+lines, 0, top, ip->cols, bottom-top-lines+1); 159 RZ3AlphaErase(ip->grf, 0, bottom - lines + 1, ip->cols, lines); 160 } 161 162 static void 163 screen_down (ip, top, bottom, lines) 164 struct ite_softc *ip; 165 int top; 166 int bottom; 167 int lines; 168 { 169 170 /* do some bounds-checking here.. */ 171 if (top >= bottom) 172 return; 173 174 if (top + lines >= bottom) { 175 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 176 return; 177 } 178 179 RZ3AlphaCopy(ip->grf, 0, top, 0, top+lines, ip->cols, bottom-top-lines+1); 180 RZ3AlphaErase(ip->grf, 0, top, ip->cols, lines); 181 } 182 183 void 184 rh_deinit(ip) 185 struct ite_softc *ip; 186 { 187 ip->flags &= ~ITE_INITED; 188 } 189 190 191 void 192 rh_putc(ip, c, dy, dx, mode) 193 struct ite_softc *ip; 194 int c; 195 int dy; 196 int dx; 197 int mode; 198 { 199 volatile u_char * fb = ip->grf->g_fbkva; 200 register u_char attr; 201 202 attr = (mode & ATTR_INV) ? 0x21 : 0x10; 203 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 204 if (mode & ATTR_BOLD) attr |= 0x08; 205 if (mode & ATTR_BLINK) attr |= 0x80; 206 207 fb += 4 * (dy * ip->cols + dx); 208 *fb++ = c; *fb = attr; 209 } 210 211 void 212 rh_clear(ip, sy, sx, h, w) 213 struct ite_softc *ip; 214 int sy; 215 int sx; 216 int h; 217 int w; 218 { 219 RZ3AlphaErase (ip->grf, sx, sy, w, h); 220 } 221 222 /* 223 * RETINA_SPEED_HACK code seems to work on some boards and on others 224 * it causes text to smear horizontally 225 */ 226 void 227 rh_scroll(ip, sy, sx, count, dir) 228 struct ite_softc *ip; 229 int sy; 230 int sx; 231 int count; 232 int dir; 233 { 234 #ifndef RETINA_SPEED_HACK 235 u_long * fb = (u_long *) ip->grf->g_fbkva; 236 #endif 237 238 rh_cursor(ip, ERASE_CURSOR); 239 240 if (dir == SCROLL_UP) { 241 #ifdef RETINA_SPEED_HACK 242 screen_up(ip, sy - count, ip->bottom_margin, count); 243 #else 244 bcopy(fb + sy * ip->cols, fb + (sy - count) * ip->cols, 245 4 * (ip->bottom_margin - sy + 1) * ip->cols); 246 rh_clear(ip, ip->bottom_margin + 1 - count, 0, count, ip->cols); 247 #endif 248 } else if (dir == SCROLL_DOWN) { 249 #ifdef RETINA_SPEED_HACK 250 screen_down(ip, sy, ip->bottom_margin, count); 251 #else 252 bcopy(fb + sy * ip->cols, fb + (sy + count) * ip->cols, 253 4 * (ip->bottom_margin - sy - count + 1) * ip->cols); 254 rh_clear(ip, sy, 0, count, ip->cols); 255 #endif 256 } else if (dir == SCROLL_RIGHT) { 257 RZ3AlphaCopy(ip->grf, sx, sy, sx + count, sy, 258 ip->cols - (sx + count), 1); 259 RZ3AlphaErase(ip->grf, sx, sy, count, 1); 260 } else { 261 RZ3AlphaCopy(ip->grf, sx + count, sy, sx, sy, 262 ip->cols - (sx + count), 1); 263 RZ3AlphaErase(ip->grf, ip->cols - count, sy, count, 1); 264 } 265 #ifndef RETINA_SPEED_HACK 266 retina_cursor(ip, !ERASE_CURSOR); 267 #endif 268 } 269 #endif /* NGRFRH */ 270
Indexes created Wed Oct 01 19:09:53 GMT 2025