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grfconfig.c revision 1.8 
      1 /*	$NetBSD: grfconfig.c,v 1.8 1997/10/17 05:58:29 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ezra Story and Bernd Ernesti.
      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 the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 __COPYRIGHT("@(#) Copyright (c) 1997 The NetBSD Foundation, Inc.\n\
     42 	All rights reserved.\n");
     43 #endif /* not lint */
     44 
     45 #ifndef lint
     46 __RCSID("$NetBSD: grfconfig.c,v 1.8 1997/10/17 05:58:29 lukem Exp $");
     47 #endif /* not lint */
     48 
     49 #include <sys/file.h>
     50 #include <sys/ioctl.h>
     51 #include <ctype.h>
     52 #include <limits.h>
     53 #include <stdio.h>
     54 #include <stdlib.h>
     55 #include <string.h>
     56 #include <unistd.h>
     57 
     58 #include <amiga/dev/grfioctl.h>
     59 
     60 int main __P((int, char **));
     61 static void print_rawdata __P((struct grfvideo_mode *, int));
     62 
     63 static struct grf_flag {
     64 	u_short	grf_flag_number;
     65 	char	*grf_flag_name;
     66 } grf_flags[] = {
     67 	{GRF_FLAGS_DBLSCAN,		"doublescan"},
     68 	{GRF_FLAGS_LACE,		"interlace"},
     69 	{GRF_FLAGS_PHSYNC,		"+hsync"},
     70 	{GRF_FLAGS_NHSYNC,		"-hsync"},
     71 	{GRF_FLAGS_PVSYNC,		"+vsync"},
     72 	{GRF_FLAGS_NVSYNC,		"-vsync"},
     73 	{GRF_FLAGS_SYNC_ON_GREEN,	"sync-on-green"},
     74 	{0,				0}
     75 };
     76 
     77 /*
     78  * Dynamic mode loader for NetBSD/Amiga grf devices.
     79  */
     80 int
     81 main(ac, av)
     82 	int     ac;
     83 	char  **av;
     84 {
     85 	struct	grfvideo_mode gv[1];
     86 	struct	grf_flag *grf_flagp;
     87 	FILE	*fp;
     88 	int	c, y, grffd;
     89 	int	i, lineno = 0;
     90 	int	uplim, lowlim;
     91 	char	rawdata = 0, testmode = 0;
     92 	char	*grfdevice = 0;
     93 	char	*modefile = 0;
     94 	char	buf[_POSIX2_LINE_MAX], obuf[_POSIX2_LINE_MAX];
     95 	char	*cps[31];
     96 	char	*p;
     97 	char	*errortext;
     98 
     99 
    100 	while ((c = getopt(ac, av, "rt")) != -1) {
    101 		switch (c) {
    102 		case 'r':	/* raw output */
    103 			rawdata = 1;
    104 			break;
    105 		case 't':	/* test the modefile without setting it */
    106 			testmode = 1;
    107 			break;
    108 		default:
    109 			printf("grfconfig [-r] device [file]\n");
    110 			return (1);
    111 		}
    112 	}
    113 	ac -= optind;
    114 	av += optind;
    115 
    116 
    117 	if (ac >= 1)
    118 		grfdevice = av[0];
    119 	else {
    120 		printf("grfconfig: No grf device specified.\n");
    121 		return (1);
    122 	}
    123 
    124 	if (ac >= 2)
    125 		modefile = av[1];
    126 
    127 	if ((grffd = open(grfdevice, O_RDWR)) < 0) {
    128 		printf("grfconfig: can't open grf device.\n");
    129 		return (1);
    130 	}
    131 	/* If a mode file is specificied, load it in, don't display any info. */
    132 
    133 	if (modefile) {
    134 		if (!(fp = fopen(modefile, "r"))) {
    135 			printf("grfconfig: Cannot open mode definition "
    136 			    "file.\n");
    137 			return (1);
    138 		}
    139 		while (fgets(buf, sizeof(buf), fp)) {
    140 			/*
    141 			 * check for end-of-section, comments, strip off trailing
    142 			 * spaces and newline character.
    143 			 */
    144 			for (p = buf; isspace(*p); ++p)
    145 				continue;
    146 			if (*p == '\0' || *p == '#')
    147 				continue;
    148 			for (p = strchr(buf, '\0'); isspace(*--p);)
    149 				continue;
    150 			*++p = '\0';
    151 
    152 			sprintf(obuf, "%s", buf);
    153 			lineno = lineno + 1;
    154 
    155 			for (i = 0, *cps = strtok(buf, " \b\t\r\n");
    156 			    cps[i] != NULL && i < 30; i++)
    157 				cps[i + 1] = strtok(NULL, " \b\t\r\n");
    158 			cps[i] = NULL;
    159 
    160 			if (cps[13] == NULL) {
    161 				printf("grfconfig: too few values in mode "
    162 				    "definition file:\n %s\n", obuf);
    163 				return (1);
    164 			}
    165 
    166 			gv->pixel_clock	= atoi(cps[1]);
    167 			gv->disp_width	= atoi(cps[2]);
    168 			gv->disp_height	= atoi(cps[3]);
    169 			gv->depth	= atoi(cps[4]);
    170 			gv->hblank_start	= atoi(cps[5]);
    171 			gv->hsync_start	= atoi(cps[6]);
    172 			gv->hsync_stop	= atoi(cps[7]);
    173 			gv->htotal	= atoi(cps[8]);
    174 			gv->vblank_start	= atoi(cps[9]);
    175 			gv->vsync_start	= atoi(cps[10]);
    176 			gv->vsync_stop	= atoi(cps[11]);
    177 			gv->vtotal	= atoi(cps[12]);
    178 
    179 			if ((y = atoi(cps[0])))
    180 				gv->mode_num = y;
    181 			else
    182 				if (strncasecmp("c", cps[0], 1) == 0) {
    183 					gv->mode_num = 255;
    184 					gv->depth = 4;
    185 				} else {
    186 					printf("grfconfig: Illegal mode "
    187 					    "number: %s\n", cps[0]);
    188 					return (1);
    189 				}
    190 
    191 			if ((gv->pixel_clock == 0) ||
    192 			    (gv->disp_width == 0) ||
    193 			    (gv->disp_height == 0) ||
    194 			    (gv->depth == 0) ||
    195 			    (gv->hblank_start == 0) ||
    196 			    (gv->hsync_start == 0) ||
    197 			    (gv->hsync_stop == 0) ||
    198 			    (gv->htotal == 0) ||
    199 			    (gv->vblank_start == 0) ||
    200 			    (gv->vsync_start == 0) ||
    201 			    (gv->vsync_stop == 0) ||
    202 			    (gv->vtotal == 0)) {
    203 				printf("grfconfig: Illegal value in "
    204 				    "mode #%d:\n %s\n", gv->mode_num, obuf);
    205 				return (1);
    206 			}
    207 
    208 			if (strstr(obuf, "default") != NULL) {
    209 				gv->disp_flags = GRF_FLAGS_DEFAULT;
    210 			} else {
    211 				gv->disp_flags = GRF_FLAGS_DEFAULT;
    212 				for (grf_flagp = grf_flags;
    213 				  grf_flagp->grf_flag_number; grf_flagp++) {
    214 				    if (strstr(obuf, grf_flagp->grf_flag_name) != NULL) {
    215 					gv->disp_flags |= grf_flagp->grf_flag_number;
    216 				    }
    217 				}
    218 				if (gv->disp_flags == GRF_FLAGS_DEFAULT) {
    219 					printf("grfconfig: Your are using an "
    220 					    "mode file with an obsolete "
    221 					    "format.\n See the manpage of "
    222 					    "grfconfig for more information "
    223 					    "about the new mode definition "
    224 					    "file.\n");
    225 					return (1);
    226 				}
    227 			}
    228 
    229 			/*
    230 			 * Check for impossible gv->disp_flags:
    231 			 * doublescan and interlace,
    232 			 * +hsync and -hsync
    233 			 * +vsync and -vsync.
    234 			 */
    235 			errortext = NULL;
    236 			if ((gv->disp_flags & GRF_FLAGS_DBLSCAN) &&
    237 			    (gv->disp_flags & GRF_FLAGS_LACE))
    238 				errortext = "Interlace and Doublescan";
    239 			if ((gv->disp_flags & GRF_FLAGS_PHSYNC) &&
    240 			    (gv->disp_flags & GRF_FLAGS_NHSYNC))
    241 				errortext = "+hsync and -hsync";
    242 			if ((gv->disp_flags & GRF_FLAGS_PVSYNC) &&
    243 			    (gv->disp_flags & GRF_FLAGS_NVSYNC))
    244 				errortext = "+vsync and -vsync";
    245 
    246 			if (errortext != NULL) {
    247 				printf("grfconfig: Illegal flags in "
    248 				    "mode #%d: %s are both defined!\n",
    249 				    gv->mode_num, errortext);
    250 				return (1);
    251 			}
    252 
    253 			/* Check for old horizontal cycle values */
    254 			if ((gv->htotal < (gv->disp_width / 4))) {
    255 				gv->hblank_start *= 8;
    256 				gv->hsync_start *= 8;
    257 				gv->hsync_stop *= 8;
    258 				gv->htotal *= 8;
    259 				printf("grfconfig: Old and no longer "
    260 				    "supported horizontal videoclock cycle "
    261 				    "values.\n Wrong mode line:\n  %s\n "
    262 				    "This could be a possible good mode "
    263 				    "line:\n  ", obuf);
    264 				printf("%d ", gv->mode_num);
    265 				print_rawdata(gv, 0);
    266 				printf(" See the manpage of grfconfig for "
    267 				    "more information about the new mode "
    268 				    "definition file.\n");
    269 				return (1);
    270 			}
    271 
    272 			/* Check for old interlace or doublescan modes */
    273 			uplim = gv->disp_height + (gv->disp_height / 4);
    274 			lowlim = gv->disp_height - (gv->disp_height / 4);
    275 			if (((gv->vtotal * 2) > lowlim) &&
    276 			    ((gv->vtotal * 2) < uplim)) {
    277 				gv->vblank_start *= 2;
    278 				gv->vsync_start *= 2;
    279 				gv->vsync_stop *= 2;
    280 				gv->vtotal *= 2;
    281 				gv->disp_flags &= ~GRF_FLAGS_DBLSCAN;
    282 				gv->disp_flags |= GRF_FLAGS_LACE;
    283 				printf("grfconfig: Old and no longer "
    284 				    "supported vertical values for "
    285 				    "interlace modes.\n Wrong mode "
    286 				    "line:\n  %s\n This could be a "
    287 				    "possible good mode line:\n  ", obuf);
    288 				printf("%d ", gv->mode_num);
    289 				print_rawdata(gv, 0);
    290 				printf(" See the manpage of grfconfig for "
    291 				    "more information about the new mode "
    292 				    "definition file.\n");
    293 				return (1);
    294 			} else if (((gv->vtotal / 2) > lowlim) &&
    295 			    ((gv->vtotal / 2) < uplim)) {
    296 				gv->vblank_start /= 2;
    297 				gv->vsync_start /= 2;
    298 				gv->vsync_stop /= 2;
    299 				gv->vtotal /= 2;
    300 				gv->disp_flags &= ~GRF_FLAGS_LACE;
    301 				gv->disp_flags |= GRF_FLAGS_DBLSCAN;
    302 				printf("grfconfig: Old and no longer "
    303 				    "supported vertical values for "
    304 				    "doublescan modes.\n Wrong mode "
    305 				    "line:\n  %s\n This could be a "
    306 				    "possible good mode line:\n  ", obuf);
    307 				printf("%d ", gv->mode_num);
    308 				print_rawdata(gv, 0);
    309 				printf(" See the manpage of grfconfig for "
    310 				    "more information about the new mode "
    311 				    "definition file.\n");
    312 				return (1);
    313 			}
    314 
    315 			if (testmode == 1) {
    316 				if (lineno == 1)
    317 					printf("num clk wid hi dep hbs "
    318 					    "hss hse ht vbs vss vse vt "
    319 					    "flags\n");
    320 				printf("%d ", gv->mode_num);
    321 				print_rawdata(gv, 1);
    322 			} else {
    323 				gv->mode_descr[0] = 0;
    324 				if (ioctl(grffd, GRFIOCSETMON, (char *) gv) < 0)
    325 					printf("grfconfig: bad monitor "
    326 					    "definition for mode #%d.\n",
    327 					    gv->mode_num);
    328 			}
    329 		}
    330 		fclose(fp);
    331 	} else {
    332 		ioctl(grffd, GRFGETNUMVM, &y);
    333 		y += 2;
    334 		for (c = 1; c < y; c++) {
    335 			c = gv->mode_num = (c != (y - 1)) ? c : 255;
    336 			if (ioctl(grffd, GRFGETVMODE, gv) < 0)
    337 				continue;
    338 			if (rawdata) {
    339 				if (c == 255)
    340 					printf("c ");
    341 				else
    342 					printf("%d ", c);
    343 				print_rawdata(gv, 0);
    344 				continue;
    345 			}
    346 			if (c == 255)
    347 				printf("Console: ");
    348 			else
    349 				printf("%2d: ", gv->mode_num);
    350 
    351 			printf("%dx%d",
    352 			    gv->disp_width,
    353 			    gv->disp_height);
    354 
    355 			if (c != 255)
    356 				printf("x%d", gv->depth);
    357 			else
    358 				printf(" (%dx%d)",
    359 				    gv->disp_width / 8,
    360 				    gv->disp_height / gv->depth);
    361 
    362 			printf("\t%ld.%ldkHz @ %ldHz",
    363 			    gv->pixel_clock / (gv->htotal * 1000),
    364 			    (gv->pixel_clock / (gv->htotal * 100))
    365     	    	    	    	% 10,
    366 			    gv->pixel_clock / (gv->htotal * gv->vtotal));
    367 			printf(" flags:");
    368 
    369 			if (gv->disp_flags == GRF_FLAGS_DEFAULT) {
    370 				printf(" default");
    371 			} else {
    372 				for (grf_flagp = grf_flags;
    373 				  grf_flagp->grf_flag_number; grf_flagp++) {
    374 				    if (gv->disp_flags & grf_flagp->grf_flag_number) {
    375 					printf(" %s", grf_flagp->grf_flag_name);
    376 				    }
    377 				}
    378 			}
    379 			printf("\n");
    380 		}
    381 	}
    382 
    383 	close(grffd);
    384 	return (0);
    385 }
    386 
    387 static void
    388 print_rawdata(gv, rawflags)
    389 	struct grfvideo_mode *gv;
    390 	int rawflags;
    391 {
    392 	struct	grf_flag *grf_flagp;
    393 
    394 	printf("%ld %d %d %d %d %d %d %d %d %d %d %d",
    395 		gv->pixel_clock,
    396 		gv->disp_width,
    397 		gv->disp_height,
    398 		gv->depth,
    399 		gv->hblank_start,
    400 		gv->hsync_start,
    401 		gv->hsync_stop,
    402 		gv->htotal,
    403 		gv->vblank_start,
    404 		gv->vsync_start,
    405 		gv->vsync_stop,
    406 		gv->vtotal);
    407 		if (rawflags) {
    408 			printf(" 0x%.2x", gv->disp_flags);
    409 		} else {
    410 			if (gv->disp_flags == GRF_FLAGS_DEFAULT) {
    411 				printf(" default");
    412 			} else {
    413 				for (grf_flagp = grf_flags;
    414 				  grf_flagp->grf_flag_number; grf_flagp++) {
    415 				    if (gv->disp_flags & grf_flagp->grf_flag_number) {
    416 					printf(" %s", grf_flagp->grf_flag_name);
    417 				    }
    418 				}
    419 			}
    420 		}
    421 		printf("\n");
    422 }
    423