ite_rh.c revision 1.9
1 /* $NetBSD: ite_rh.c,v 1.9 2002/01/26 13:40:57 aymeric 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(struct ite_softc *, int, int, int); 54 static void screen_down(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(void) 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(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(struct ite_softc *ip) 92 { 93 struct MonDef *md; 94 95 #if 0 /* Not in ite_rt.c - DC */ 96 if (ip->grf == 0) 97 ip->grf = &grf_softc[ip - ite_softc]; 98 #endif 99 100 ip->priv = ip->grf->g_data; 101 md = (struct MonDef *) ip->priv; 102 103 ip->cols = md->TX; 104 ip->rows = md->TY; 105 } 106 107 108 void 109 rh_cursor(struct ite_softc *ip, int flag) 110 { 111 #if 0 112 volatile u_char *ba = ip->grf->g_regkva; 113 #endif 114 115 if (flag == START_CURSOROPT || flag == END_CURSOROPT) 116 return; 117 118 if (flag == ERASE_CURSOR) { 119 #if 0 120 /* disable cursor */ 121 WCrt (ba, CRT_ID_CURSOR_START, 122 RCrt (ba, CRT_ID_CURSOR_START) | 0x20); 123 #endif 124 } else { 125 int pos = ip->curx + ip->cury * ip->cols; 126 #if 0 127 /* make sure to enable cursor */ 128 WCrt (ba, CRT_ID_CURSOR_START, 129 RCrt (ba, CRT_ID_CURSOR_START) & ~0x20); 130 #endif 131 132 /* and position it */ 133 RZ3SetCursorPos (ip->grf, pos); 134 135 ip->cursorx = ip->curx; 136 ip->cursory = ip->cury; 137 } 138 } 139 140 141 #ifdef RETINA_SPEED_HACK 142 static void 143 screen_up(struct ite_softc *ip, int top, int bottom, int lines) 144 { 145 146 /* do some bounds-checking here.. */ 147 if (top >= bottom) 148 return; 149 150 if (top + lines >= bottom) { 151 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 152 return; 153 } 154 155 RZ3AlphaCopy(ip->grf, 0, top+lines, 0, top, ip->cols, bottom-top-lines+1); 156 RZ3AlphaErase(ip->grf, 0, bottom - lines + 1, ip->cols, lines); 157 } 158 159 160 static void 161 screen_down (struct ite_softc *ip, int top, int bottom, int lines) 162 { 163 164 /* do some bounds-checking here.. */ 165 if (top >= bottom) 166 return; 167 168 if (top + lines >= bottom) { 169 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 170 return; 171 } 172 173 RZ3AlphaCopy(ip->grf, 0, top, 0, top+lines, ip->cols, bottom-top-lines+1); 174 RZ3AlphaErase(ip->grf, 0, top, ip->cols, lines); 175 } 176 #endif /* RETINA_SPEED_HACK */ 177 178 179 void 180 rh_deinit(struct ite_softc *ip) 181 { 182 ip->flags &= ~ITE_INITED; 183 } 184 185 186 void 187 rh_putc(struct ite_softc *ip, int c, int dy, int dx, int mode) 188 { 189 volatile u_char * fb = ip->grf->g_fbkva; 190 register u_char attr; 191 192 attr = (mode & ATTR_INV) ? 0x21 : 0x10; 193 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 194 if (mode & ATTR_BOLD) attr |= 0x08; 195 if (mode & ATTR_BLINK) attr |= 0x80; 196 197 fb += 4 * (dy * ip->cols + dx); 198 *fb++ = c; *fb = attr; 199 } 200 201 202 void 203 rh_clear(struct ite_softc *ip, int sy, int sx, int h, int w) 204 { 205 RZ3AlphaErase (ip->grf, sx, sy, w, h); 206 } 207 208 209 /* 210 * RETINA_SPEED_HACK code seems to work on some boards and on others 211 * it causes text to smear horizontally 212 */ 213 void 214 rh_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir) 215 { 216 #ifndef RETINA_SPEED_HACK 217 u_long * fb = (u_long *) ip->grf->g_fbkva; 218 #endif 219 220 rh_cursor(ip, ERASE_CURSOR); 221 222 if (dir == SCROLL_UP) { 223 #ifdef RETINA_SPEED_HACK 224 screen_up(ip, sy - count, ip->bottom_margin, count); 225 #else 226 bcopy(fb + sy * ip->cols, fb + (sy - count) * ip->cols, 227 4 * (ip->bottom_margin - sy + 1) * ip->cols); 228 rh_clear(ip, ip->bottom_margin + 1 - count, 0, count, ip->cols); 229 #endif 230 } else if (dir == SCROLL_DOWN) { 231 #ifdef RETINA_SPEED_HACK 232 screen_down(ip, sy, ip->bottom_margin, count); 233 #else 234 bcopy(fb + sy * ip->cols, fb + (sy + count) * ip->cols, 235 4 * (ip->bottom_margin - sy - count + 1) * ip->cols); 236 rh_clear(ip, sy, 0, count, ip->cols); 237 #endif 238 } else if (dir == SCROLL_RIGHT) { 239 RZ3AlphaCopy(ip->grf, sx, sy, sx + count, sy, 240 ip->cols - (sx + count), 1); 241 RZ3AlphaErase(ip->grf, sx, sy, count, 1); 242 } else { 243 RZ3AlphaCopy(ip->grf, sx + count, sy, sx, sy, 244 ip->cols - (sx + count), 1); 245 RZ3AlphaErase(ip->grf, ip->cols - count, sy, count, 1); 246 } 247 #ifndef RETINA_SPEED_HACK 248 rh_cursor(ip, !ERASE_CURSOR); 249 #endif 250 } 251 #endif /* NGRFRH */ 252
Indexes created Wed Oct 01 19:09:53 GMT 2025