1 /* $NetBSD: ite_et.c,v 1.6 2002/01/28 09:57:00 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 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: ite_et.c,v 1.6 2002/01/28 09:57:00 aymeric Exp $"); 40 41 #include "grfet.h" 42 #if NGRFET > 0 43 44 #include <sys/param.h> 45 #include <sys/conf.h> 46 #include <sys/proc.h> 47 #include <sys/device.h> 48 #include <sys/ioctl.h> 49 #include <sys/tty.h> 50 #include <sys/systm.h> 51 #include <dev/cons.h> 52 #include <machine/cpu.h> 53 #include <amiga/amiga/device.h> 54 #include <amiga/dev/grfioctl.h> 55 #include <amiga/dev/grfvar.h> 56 #include <amiga/dev/grf_etreg.h> 57 #include <amiga/dev/itevar.h> 58 59 #ifdef TSENGCONSOLE 60 int et_console = 1; 61 #else 62 int et_console = 0; 63 #endif 64 65 void et_init(struct ite_softc *ip); 66 void et_cursor(struct ite_softc *ip, int flag); 67 void et_deinit(struct ite_softc *ip); 68 void et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode); 69 void et_clear(struct ite_softc *ip, int sy, int sx, int h, int w); 70 void et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir); 71 static void etbcopy(const void *src, void *dst, size_t len); 72 73 74 /* 75 * Called to determine ite status. Because the connection between the 76 * console & ite in this driver is rather intimate, we return CN_DEAD 77 * if the cl_console is not active. 78 */ 79 int 80 grfet_cnprobe(void) 81 { 82 static int done; 83 int rv; 84 85 if (et_console && (done == 0)) 86 rv = CN_INTERNAL; 87 else 88 rv = CN_DEAD; 89 90 done = 1; 91 return(rv); 92 } 93 94 95 void 96 grfet_iteinit(struct grf_softc *gp) 97 { 98 gp->g_iteinit = et_init; 99 gp->g_itedeinit = et_deinit; 100 gp->g_iteclear = et_clear; 101 gp->g_iteputc = et_putc; 102 gp->g_itescroll = et_scroll; 103 gp->g_itecursor = et_cursor; 104 } 105 106 107 void 108 et_init(struct ite_softc *ip) 109 { 110 struct grfettext_mode *md; 111 112 ip->priv = ip->grf->g_data; 113 md = (struct grfettext_mode *) ip->priv; 114 115 ip->cols = md->cols; 116 ip->rows = md->rows; 117 } 118 119 120 void 121 et_cursor(struct ite_softc *ip, int flag) 122 { 123 volatile u_char *ba = ip->grf->g_regkva; 124 125 switch (flag) { 126 case DRAW_CURSOR: 127 /*WCrt(ba, CRT_ID_CURSOR_START, & ~0x20); */ 128 case MOVE_CURSOR: 129 flag = ip->curx + ip->cury * ip->cols; 130 WCrt(ba, CRT_ID_CURSOR_LOC_LOW, flag & 0xff); 131 WCrt(ba, CRT_ID_CURSOR_LOC_HIGH, (flag >> 8) & 0xff); 132 WCrt(ba, CRT_ID_EXT_START, (flag >> (16-2)) & 0x0c); 133 134 ip->cursorx = ip->curx; 135 ip->cursory = ip->cury; 136 break; 137 case ERASE_CURSOR: 138 /*WCrt(ba, CRT_ID_CURSOR_START, | 0x20); */ 139 case START_CURSOROPT: 140 case END_CURSOROPT: 141 default: 142 break; 143 } 144 } 145 146 147 void 148 et_deinit(struct ite_softc *ip) 149 { 150 ip->flags &= ~ITE_INITED; 151 } 152 153 154 void 155 et_putc(struct ite_softc *ip, int c, int dy, int dx, int mode) 156 { 157 volatile unsigned char *ba = ip->grf->g_regkva; 158 unsigned char *fb = ip->grf->g_fbkva; 159 unsigned char attr; 160 unsigned char *cp; 161 162 attr =(unsigned char) ((mode & ATTR_INV) ? (0x70) : (0x07)); 163 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 164 if (mode & ATTR_BOLD) attr |= 0x08; 165 if (mode & ATTR_BLINK) attr |= 0x80; 166 167 cp = fb + ((dy * ip->cols) + dx); 168 SetTextPlane(ba,0x00); 169 *cp = (unsigned char) c; 170 SetTextPlane(ba,0x01); 171 *cp = (unsigned char) attr; 172 } 173 174 175 void 176 et_clear(struct ite_softc *ip, int sy, int sx, int h, int w) 177 { 178 /* cl_clear and cl_scroll both rely on ite passing arguments 179 * which describe continuous regions. For a VT200 terminal, 180 * this is safe behavior. 181 */ 182 unsigned char *src, *dst; 183 volatile unsigned char *ba = ip->grf->g_regkva; 184 int len; 185 186 dst = ip->grf->g_fbkva + (sy * ip->cols) + sx; 187 src = dst + (ip->rows*ip->cols); 188 len = w*h; 189 190 SetTextPlane(ba, 0x00); 191 etbcopy(src, dst, len); 192 SetTextPlane(ba, 0x01); 193 etbcopy(src, dst, len); 194 } 195 196 197 void 198 et_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir) 199 { 200 unsigned char *fb; 201 volatile unsigned char *ba = ip->grf->g_regkva; 202 203 fb = ip->grf->g_fbkva + sy * ip->cols; 204 SetTextPlane(ba, 0x00); 205 206 switch (dir) { 207 case SCROLL_UP: 208 etbcopy(fb, fb - (count * ip->cols), 209 (ip->bottom_margin + 1 - sy) * ip->cols); 210 break; 211 case SCROLL_DOWN: 212 etbcopy(fb, fb + (count * ip->cols), 213 (ip->bottom_margin + 1 - (sy + count)) * ip->cols); 214 break; 215 case SCROLL_RIGHT: 216 etbcopy(fb+sx, fb+sx+count, ip->cols - (sx + count)); 217 break; 218 case SCROLL_LEFT: 219 etbcopy(fb+sx, fb+sx-count, ip->cols - sx); 220 break; 221 } 222 223 SetTextPlane(ba, 0x01); 224 225 switch (dir) { 226 case SCROLL_UP: 227 etbcopy(fb, fb - (count * ip->cols), 228 (ip->bottom_margin + 1 - sy) * ip->cols); 229 break; 230 case SCROLL_DOWN: 231 etbcopy(fb, fb + (count * ip->cols), 232 (ip->bottom_margin + 1 - (sy + count)) * ip->cols); 233 break; 234 case SCROLL_RIGHT: 235 etbcopy(fb+sx, fb+sx+count, ip->cols - (sx + count)); 236 break; 237 case SCROLL_LEFT: 238 etbcopy(fb+sx, fb+sx-count, ip->cols - sx); 239 break; 240 } 241 } 242 243 244 static void etbcopy(const void *src, void *dst, size_t len) 245 { 246 int i; 247 248 if (src == dst) 249 return; 250 251 if (src > dst) 252 for (i=len; i>0; i--) { 253 *((char *)dst)++ = *((char *)src)++; 254 } 255 else { 256 ((char *)src) += len; 257 ((char *)dst) += len; 258 259 for (i=len; i>0; i--){ 260 *--((char *)dst) = *--((char *)src); 261 } 262 } 263 } 264 265 #endif /* NGRFET */ 266