ite_et.c revision 1.5
1 /* $NetBSD: ite_et.c,v 1.5 2002/01/26 13:40:57 aymeric Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Ezra Story 5 * Copyright (c) 1995 Kari Mettinen 6 * Copyright (c) 1994 Markus Wild 7 * Copyright (c) 1994 Lutz Vieweg 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by Lutz Vieweg. 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #include "opt_amigacons.h" 37 #include "grfet.h" 38 #if NGRFET > 0 39 40 #include <sys/param.h> 41 #include <sys/conf.h> 42 #include <sys/proc.h> 43 #include <sys/device.h> 44 #include <sys/ioctl.h> 45 #include <sys/tty.h> 46 #include <sys/systm.h> 47 #include <dev/cons.h> 48 #include <machine/cpu.h> 49 #include <amiga/amiga/device.h> 50 #include <amiga/dev/grfioctl.h> 51 #include <amiga/dev/grfvar.h> 52 #include <amiga/dev/grf_etreg.h> 53 #include <amiga/dev/itevar.h> 54 55 #ifdef TSENGCONSOLE 56 int et_console = 1; 57 #else 58 int et_console = 0; 59 #endif 60 61 void et_init(struct ite_softc *ip); 62 void et_cursor(struct ite_softc *ip, int flag); 63 void et_deinit(struct ite_softc *ip); 64 void et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode); 65 void et_clear(struct ite_softc *ip, int sy, int sx, int h, int w); 66 void et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir); 67 static void etbcopy(const void *src, void *dst, size_t len); 68 69 70 /* 71 * Called to determine ite status. Because the connection between the 72 * console & ite in this driver is rather intimate, we return CN_DEAD 73 * if the cl_console is not active. 74 */ 75 int 76 grfet_cnprobe(void) 77 { 78 static int done; 79 int rv; 80 81 if (et_console && (done == 0)) 82 rv = CN_INTERNAL; 83 else 84 rv = CN_DEAD; 85 86 done = 1; 87 return(rv); 88 } 89 90 91 void 92 grfet_iteinit(struct grf_softc *gp) 93 { 94 gp->g_iteinit = et_init; 95 gp->g_itedeinit = et_deinit; 96 gp->g_iteclear = et_clear; 97 gp->g_iteputc = et_putc; 98 gp->g_itescroll = et_scroll; 99 gp->g_itecursor = et_cursor; 100 } 101 102 103 void 104 et_init(struct ite_softc *ip) 105 { 106 struct grfettext_mode *md; 107 108 ip->priv = ip->grf->g_data; 109 md = (struct grfettext_mode *) ip->priv; 110 111 ip->cols = md->cols; 112 ip->rows = md->rows; 113 } 114 115 116 void 117 et_cursor(struct ite_softc *ip, int flag) 118 { 119 volatile u_char *ba = ip->grf->g_regkva; 120 121 switch (flag) { 122 case DRAW_CURSOR: 123 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 124 case MOVE_CURSOR: 125 flag = ip->curx + ip->cury * ip->cols; 126 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, flag & 0xff); 127 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (flag >> 8) & 0xff); 128 WCrt(ba, CRT_ID_EXT_START, (flag >> (16-2)) & 0x0c); 129 130 ip->cursorx = ip->curx; 131 ip->cursory = ip->cury; 132 break; 133 case ERASE_CURSOR: 134 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 135 case START_CURSOROPT: 136 case END_CURSOROPT: 137 default: 138 break; 139 } 140 } 141 142 143 void 144 et_deinit(struct ite_softc *ip) 145 { 146 ip->flags &= ~ITE_INITED; 147 } 148 149 150 void 151 et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode) 152 { 153 volatile unsigned char *ba = ip->grf->g_regkva; 154 unsigned char *fb = ip->grf->g_fbkva; 155 unsigned char attr; 156 unsigned char *cp; 157 158 attr =(unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 159 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 160 if (mode & ATTR_BOLD) attr |= 0x08; 161 if (mode & ATTR_BLINK) attr |= 0x80; 162 163 cp = fb + ((dy * ip->cols) + dx); 164 SetTextPlane(ba,0x00); 165 *cp = (unsigned char) c; 166 SetTextPlane(ba,0x01); 167 *cp = (unsigned char) attr; 168 } 169 170 171 void 172 et_clear(struct ite_softc *ip, int sy, int sx, int h, int w) 173 { 174 /* cl_clear and cl_scroll both rely on ite passing arguments 175 * which describe continuous regions. For a VT200 terminal, 176 * this is safe behavior. 177 */ 178 unsigned char *src, *dst; 179 volatile unsigned char *ba = ip->grf->g_regkva; 180 int len; 181 182 dst = ip->grf->g_fbkva + (sy * ip->cols) + sx; 183 src = dst + (ip->rows*ip->cols); 184 len = w*h; 185 186 SetTextPlane(ba, 0x00); 187 etbcopy(src, dst, len); 188 SetTextPlane(ba, 0x01); 189 etbcopy(src, dst, len); 190 } 191 192 193 void 194 et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir) 195 { 196 unsigned char *fb; 197 volatile unsigned char *ba = ip->grf->g_regkva; 198 199 fb = ip->grf->g_fbkva + sy * ip->cols; 200 SetTextPlane(ba, 0x00); 201 202 switch (dir) { 203 case SCROLL_UP: 204 etbcopy(fb, fb - (count * ip->cols), 205 (ip->bottom_margin + 1 - sy) * ip->cols); 206 break; 207 case SCROLL_DOWN: 208 etbcopy(fb, fb + (count * ip->cols), 209 (ip->bottom_margin + 1 - (sy + count)) * ip->cols); 210 break; 211 case SCROLL_RIGHT: 212 etbcopy(fb+sx, fb+sx+count, ip->cols - (sx + count)); 213 break; 214 case SCROLL_LEFT: 215 etbcopy(fb+sx, fb+sx-count, ip->cols - sx); 216 break; 217 } 218 219 SetTextPlane(ba, 0x01); 220 221 switch (dir) { 222 case SCROLL_UP: 223 etbcopy(fb, fb - (count * ip->cols), 224 (ip->bottom_margin + 1 - sy) * ip->cols); 225 break; 226 case SCROLL_DOWN: 227 etbcopy(fb, fb + (count * ip->cols), 228 (ip->bottom_margin + 1 - (sy + count)) * ip->cols); 229 break; 230 case SCROLL_RIGHT: 231 etbcopy(fb+sx, fb+sx+count, ip->cols - (sx + count)); 232 break; 233 case SCROLL_LEFT: 234 etbcopy(fb+sx, fb+sx-count, ip->cols - sx); 235 break; 236 } 237 } 238 239 240 static void etbcopy(const void *src, void *dst, size_t len) 241 { 242 int i; 243 244 if (src == dst) 245 return; 246 247 if (src > dst) 248 for (i=len; i>0; i--) { 249 *((char *)dst)++ = *((char *)src)++; 250 } 251 else { 252 ((char *)src) += len; 253 ((char *)dst) += len; 254 255 for (i=len; i>0; i--){ 256 *--((char *)dst) = *--((char *)src); 257 } 258 } 259 } 260 261 #endif /* NGRFET */ 262
Indexes created Sun Sep 21 20:09:37 GMT 2025