1 /* $NetBSD: ite_rh.c,v 1.8 1999/03/25 23:19:59 is 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 "opt_retina.h" 34 #include "grfrh.h" 35 #if NGRFRH > 0 36 37 #include <sys/param.h> 38 #include <sys/conf.h> 39 #include <sys/proc.h> 40 #include <sys/device.h> 41 #include <sys/ioctl.h> 42 #include <sys/tty.h> 43 #include <sys/systm.h> 44 #include <dev/cons.h> 45 #include <machine/cpu.h> 46 #include <amiga/amiga/device.h> 47 #include <amiga/dev/grfioctl.h> 48 #include <amiga/dev/grfvar.h> 49 #include <amiga/dev/grf_rhreg.h> 50 #include <amiga/dev/itevar.h> 51 52 #ifdef RETINA_SPEED_HACK 53 static void screen_up __P((struct ite_softc *, int, int, int)); 54 static void screen_down __P((struct ite_softc *, int, int, int)); 55 #endif 56 57 /* 58 * grfrh_cnprobe is called when the console is being initialized 59 * i.e. very early. grfconfig() has been called, so this implies 60 * that rt_init() was called. If we are functioning rh_inited 61 * will be true. 62 */ 63 int 64 grfrh_cnprobe() 65 { 66 static int done; 67 int rv; 68 69 if (done == 0) 70 rv = CN_INTERNAL; 71 else 72 rv = CN_NORMAL; 73 done = 1; 74 return(rv); 75 } 76 77 78 void 79 grfrh_iteinit(gp) 80 struct grf_softc *gp; 81 { 82 gp->g_iteinit = rh_init; 83 gp->g_itedeinit = rh_deinit; 84 gp->g_iteclear = rh_clear; 85 gp->g_iteputc = rh_putc; 86 gp->g_itescroll = rh_scroll; 87 gp->g_itecursor = rh_cursor; 88 } 89 90 91 void 92 rh_init(ip) 93 struct ite_softc *ip; 94 { 95 struct MonDef *md; 96 97 #if 0 /* Not in ite_rt.c - DC */ 98 if (ip->grf == 0) 99 ip->grf = &grf_softc[ip - ite_softc]; 100 #endif 101 102 ip->priv = ip->grf->g_data; 103 md = (struct MonDef *) ip->priv; 104 105 ip->cols = md->TX; 106 ip->rows = md->TY; 107 } 108 109 110 void 111 rh_cursor(ip, flag) 112 struct ite_softc *ip; 113 int flag; 114 { 115 #if 0 116 volatile u_char *ba = ip->grf->g_regkva; 117 #endif 118 119 if (flag == START_CURSOROPT || flag == END_CURSOROPT) 120 return; 121 122 if (flag == ERASE_CURSOR) { 123 #if 0 124 /* disable cursor */ 125 WCrt (ba, CRT_ID_CURSOR_START, 126 RCrt (ba, CRT_ID_CURSOR_START) | 0x20); 127 #endif 128 } else { 129 int pos = ip->curx + ip->cury * ip->cols; 130 #if 0 131 /* make sure to enable cursor */ 132 WCrt (ba, CRT_ID_CURSOR_START, 133 RCrt (ba, CRT_ID_CURSOR_START) & ~0x20); 134 #endif 135 136 /* and position it */ 137 RZ3SetCursorPos (ip->grf, pos); 138 139 ip->cursorx = ip->curx; 140 ip->cursory = ip->cury; 141 } 142 } 143 144 145 #ifdef RETINA_SPEED_HACK 146 static void 147 screen_up(ip, top, bottom, lines) 148 struct ite_softc *ip; 149 int top; 150 int bottom; 151 int lines; 152 { 153 154 /* do some bounds-checking here.. */ 155 if (top >= bottom) 156 return; 157 158 if (top + lines >= bottom) { 159 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 160 return; 161 } 162 163 RZ3AlphaCopy(ip->grf, 0, top+lines, 0, top, ip->cols, bottom-top-lines+1); 164 RZ3AlphaErase(ip->grf, 0, bottom - lines + 1, ip->cols, lines); 165 } 166 167 168 static void 169 screen_down (ip, top, bottom, lines) 170 struct ite_softc *ip; 171 int top; 172 int bottom; 173 int lines; 174 { 175 176 /* do some bounds-checking here.. */ 177 if (top >= bottom) 178 return; 179 180 if (top + lines >= bottom) { 181 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 182 return; 183 } 184 185 RZ3AlphaCopy(ip->grf, 0, top, 0, top+lines, ip->cols, bottom-top-lines+1); 186 RZ3AlphaErase(ip->grf, 0, top, ip->cols, lines); 187 } 188 #endif /* RETINA_SPEED_HACK */ 189 190 191 void 192 rh_deinit(ip) 193 struct ite_softc *ip; 194 { 195 ip->flags &= ~ITE_INITED; 196 } 197 198 199 void 200 rh_putc(ip, c, dy, dx, mode) 201 struct ite_softc *ip; 202 int c; 203 int dy; 204 int dx; 205 int mode; 206 { 207 volatile u_char * fb = ip->grf->g_fbkva; 208 register u_char attr; 209 210 attr = (mode & ATTR_INV) ? 0x21 : 0x10; 211 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 212 if (mode & ATTR_BOLD) attr |= 0x08; 213 if (mode & ATTR_BLINK) attr |= 0x80; 214 215 fb += 4 * (dy * ip->cols + dx); 216 *fb++ = c; *fb = attr; 217 } 218 219 220 void 221 rh_clear(ip, sy, sx, h, w) 222 struct ite_softc *ip; 223 int sy; 224 int sx; 225 int h; 226 int w; 227 { 228 RZ3AlphaErase (ip->grf, sx, sy, w, h); 229 } 230 231 232 /* 233 * RETINA_SPEED_HACK code seems to work on some boards and on others 234 * it causes text to smear horizontally 235 */ 236 void 237 rh_scroll(ip, sy, sx, count, dir) 238 struct ite_softc *ip; 239 int sy; 240 int sx; 241 int count; 242 int dir; 243 { 244 #ifndef RETINA_SPEED_HACK 245 u_long * fb = (u_long *) ip->grf->g_fbkva; 246 #endif 247 248 rh_cursor(ip, ERASE_CURSOR); 249 250 if (dir == SCROLL_UP) { 251 #ifdef RETINA_SPEED_HACK 252 screen_up(ip, sy - count, ip->bottom_margin, count); 253 #else 254 bcopy(fb + sy * ip->cols, fb + (sy - count) * ip->cols, 255 4 * (ip->bottom_margin - sy + 1) * ip->cols); 256 rh_clear(ip, ip->bottom_margin + 1 - count, 0, count, ip->cols); 257 #endif 258 } else if (dir == SCROLL_DOWN) { 259 #ifdef RETINA_SPEED_HACK 260 screen_down(ip, sy, ip->bottom_margin, count); 261 #else 262 bcopy(fb + sy * ip->cols, fb + (sy + count) * ip->cols, 263 4 * (ip->bottom_margin - sy - count + 1) * ip->cols); 264 rh_clear(ip, sy, 0, count, ip->cols); 265 #endif 266 } else if (dir == SCROLL_RIGHT) { 267 RZ3AlphaCopy(ip->grf, sx, sy, sx + count, sy, 268 ip->cols - (sx + count), 1); 269 RZ3AlphaErase(ip->grf, sx, sy, count, 1); 270 } else { 271 RZ3AlphaCopy(ip->grf, sx + count, sy, sx, sy, 272 ip->cols - (sx + count), 1); 273 RZ3AlphaErase(ip->grf, ip->cols - count, sy, count, 1); 274 } 275 #ifndef RETINA_SPEED_HACK 276 rh_cursor(ip, !ERASE_CURSOR); 277 #endif 278 } 279 #endif /* NGRFRH */ 280