NetBSD/sys/arch/arm32/vidc/makemodes.c

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/* $NetBSD: makemodes.c,v 1.9 1997/10/14 11:59:49 mark Exp $ */
/*
* Copyright (c) 1995 Mark Brinicombe.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the RiscBSD team.
* 4. The name of the group nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* RiscBSD kernel project
*
* makemodes.c
*
* VIDC20 mode configuration program.
*
* Builds a list of configured modes using mode specifiers to select
* the VIDC timings from a monitor definition file
*
* Not yet perfect, this is just experimental.
*
* Created : 17/05/95
* Last updated : 17/05/95
*/
#include <stdio.h>
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#include <stdlib.h>
/*#define VERBOSE*/
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#ifndef __P
#define __P(protos) ()
#endif
#define MAX_MD 100 /* Support up to 100 modes from a file */
struct md {
int md_xres;
int md_yres;
int md_pixelrate;
int md_htimings[6];
int md_vtimings[6];
int md_syncpol;
int md_framerate;
} mds[MAX_MD];
int md; /* Number of modes defined in the mds array */
#define MOD(x) (((x) > 0) ? (x) : -(x))
void makemode __P((FILE *, int, int, int, int));
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int main __P((int argc, char *argv[]));
int
main(argc, argv)
int argc;
char *argv[];
{
char line[100]; /* Line read from mdf */
char token[40]; /* token read from mdf line */
char value[60]; /* value of token read form mdf line */
int startmode; /* Are we between startmode and endmode tokens */
char monitor[40]; /* monitor name */
int dpms; /* DPMS state for monitor */
FILE *mdf_fd; /* mdf file descriptor */
FILE *out_fd; /* output file descriptor */
int loop; /* loop counter */
int x, y, c, f; /* mode specifier variables */
int params;
char *ptr;
/* Check the args */
if (argc < 3) {
fprintf(stderr, "Syntax: makemodes <mdf> <outfile> <modes>\n");
exit(10);
}
/* Open the monitor definition file */
mdf_fd = fopen(argv[1], "r");
if (!mdf_fd) {
fprintf(stderr, "Cannot open monitor definition file\n");
exit(10);
}
/* Open the output file */
out_fd = fopen(argv[2], "w");
if (!out_fd) {
fprintf(stderr, "Cannot open output file\n");
exit(10);
}
/* Initialise some variables */
startmode = 0;
md = 0;
dpms = 0;
monitor[0] = 0;
/* Loop for each line in the monitor definition file */
do {
/* get a line */
if (fgets(line, 99, mdf_fd) == NULL)
break;
ptr = line;
/* Skip any spaces or tabs */
while (*ptr == ' ' || *ptr == '\t')
++ptr;
/* Ignore comment or blank lines */
if (*ptr == '#' || strlen(ptr) < 2)
continue;
/* Do we have a startmode or endmode token ? */
if (sscanf(ptr, "%s", token) == 1) {
if (strcmp(token, "startmode") == 0) {
if (md < MAX_MD)
startmode = 1;
}
if (strcmp(token, "endmode") == 0) {
startmode = 0;
++md;
}
}
/* Do we have a token:value line ? */
if (sscanf(ptr, "%[^:]:%[^\n]\n", token, value) == 2) {
if (strcmp(token, "monitor_title") == 0)
strcpy(monitor, value);
if (strcmp(token, "file_format") == 0) {
if (atoi(value) != 1) {
fprintf(stderr, "Unrecognised file format\n");
exit(10);
}
}
if (strcmp(token, "DPMS_state") == 0)
dpms = atoi(value);
if (strcmp(token, "x_res") == 0 && startmode)
mds[md].md_xres = atoi(value);
if (strcmp(token, "y_res") == 0 && startmode)
mds[md].md_yres = atoi(value);
if (strcmp(token, "pixel_rate") == 0 && startmode)
mds[md].md_pixelrate = atoi(value);
if (strcmp(token, "h_timings") == 0 && startmode)
sscanf(value, "%d,%d,%d,%d,%d,%d",
&mds[md].md_htimings[0],
&mds[md].md_htimings[1],
&mds[md].md_htimings[2],
&mds[md].md_htimings[3],
&mds[md].md_htimings[4],
&mds[md].md_htimings[5]);
if (strcmp(token, "v_timings") == 0 && startmode)
sscanf(value, "%d,%d,%d,%d,%d,%d",
&mds[md].md_vtimings[0],
&mds[md].md_vtimings[1],
&mds[md].md_vtimings[2],
&mds[md].md_vtimings[3],
&mds[md].md_vtimings[4],
&mds[md].md_vtimings[5]);
if (strcmp(token, "sync_pol") == 0 && startmode)
mds[md].md_syncpol = atoi(value);
}
}
while (!feof(mdf_fd));
/* We have finished with the monitor definition file */
fclose(mdf_fd);
#ifdef VERBOSE
/* This was for debugging */
for (loop = 0; loop < md; ++loop) {
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printf("%d x %d: %d %d [%d,%d,%d,%d,%d,%d] [%d,%d,%d,%d,%d,%d]\n",
mds[loop].md_xres,
mds[loop].md_yres,
mds[loop].md_pixelrate,
mds[loop].md_syncpol,
mds[loop].md_htimings[0],
mds[loop].md_htimings[1],
mds[loop].md_htimings[2],
mds[loop].md_htimings[3],
mds[loop].md_htimings[4],
mds[loop].md_htimings[5],
mds[loop].md_vtimings[0],
mds[loop].md_vtimings[1],
mds[loop].md_vtimings[2],
mds[loop].md_vtimings[3],
mds[loop].md_vtimings[4],
mds[loop].md_vtimings[5]);
}
#endif
/* Start building the output file */
fprintf(out_fd, "/*\n");
fprintf(out_fd, " * MACHINE GENERATED: DO NOT EDIT\n");
fprintf(out_fd, " *\n");
fprintf(out_fd, " * %s, from %s\n", argv[2], argv[1]);
fprintf(out_fd, " */\n\n");
fprintf(out_fd, "#include <sys/types.h>\n");
fprintf(out_fd, "#include <machine/vidc.h>\n\n");
fprintf(out_fd, "char *monitor=\"%s\";\n", monitor);
fprintf(out_fd, "int dpms=%d;\n", dpms);
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fprintf(out_fd, "\n");
fprintf(out_fd, "struct vidc_mode vidcmodes[] = {\n");
loop = 3;
/* Loop over the rest of the args processing then as mode specifiers */
/* NOTE: A mode specifier cannot have a space in it at the moment */
while (argv[loop]) {
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printf("%s ==> ", argv[loop]);
f = -1;
c = 256;
params = sscanf(argv[loop], "X%dY%dC%dF%d", &x, &y, &c, &f);
if (params < 2)
params = sscanf(argv[loop], "%d,%d,%d,%d", &x, &y, &c, &f);
if (params == 2 || params == 4)
makemode(out_fd, x, y, c, f);
else if (params == 3)
makemode(out_fd, x, y, 256, c);
else
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printf("Invalid mode specifier\n");
printf("\n");
++loop;
}
/* Finish off the output file */
fprintf(out_fd, " { 0 }\n");
fprintf(out_fd, "};\n");
fclose(out_fd);
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exit(0);
}
/* Locate an appropriate mode for the specifier and write it to the file */
void makemode(out_fd, x, y, c, f)
FILE *out_fd;
int x, y, c, f;
{
int loop; /* loop counter */
float framerate; /* frame rate */
int fr; /* integer frame rate */
int found = -1; /* array index of found mode */
int closest = 200; /* closest frame rate found */
/* int max = -1;*/ /* maximum frame rate found */
int pos = -1; /* array index of max frame rate */
/* Print some info */
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printf("%d x %d x %d x %d : ", x, y, c, f);
/* Scan the modes */
for (loop = 0; loop < md; ++loop) {
/* X and Y have to match */
if (mds[loop].md_xres == x && mds[loop].md_yres == y) {
/* Now calculate the frame rate */
framerate = (float)mds[loop].md_pixelrate /
(float)(mds[loop].md_htimings[0] +
mds[loop].md_htimings[1] +
mds[loop].md_htimings[2] +
mds[loop].md_htimings[3] +
mds[loop].md_htimings[4] +
mds[loop].md_htimings[5]) /
(float)(mds[loop].md_vtimings[0] +
mds[loop].md_vtimings[1] +
mds[loop].md_vtimings[2] +
mds[loop].md_vtimings[3] +
mds[loop].md_vtimings[4] +
mds[loop].md_vtimings[5]);
framerate = framerate * 1000;
fr = (framerate + 0.5);
mds[loop].md_framerate = fr;
/* Print it as info */
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printf("%d ", fr);
/* Is this a new maximum ? */
/* if (max < fr) {
max = fr;
pos = loop;
}*/
/* Is this the closest ? */
if (closest > MOD(fr - f)) {
closest = MOD(fr - f);
pos = loop;
}
/* Does it match the specified frame rate ? */
if (fr == f)
found = loop;
}
}
/* No exact match so use the max */
if (found == -1)
found = pos;
/* Do we have an entry for this X & Y resolution */
if (found != -1) {
printf("- %d", mds[found].md_framerate);
fprintf(out_fd, " { %d,/**/%d, %d, %d, %d, %d, %d,/**/%d, %d, %d, %d, %d, %d,/**/%d,/**/%d, %d },\n",
mds[found].md_pixelrate,
mds[found].md_htimings[0],
mds[found].md_htimings[1],
mds[found].md_htimings[2],
mds[found].md_htimings[3],
mds[found].md_htimings[4],
mds[found].md_htimings[5],
mds[found].md_vtimings[0],
mds[found].md_vtimings[1],
mds[found].md_vtimings[2],
mds[found].md_vtimings[3],
mds[found].md_vtimings[4],
mds[found].md_vtimings[5],
ffs(c),
mds[found].md_syncpol,
mds[found].md_framerate);
}
else {
fprintf(stderr, "Cannot find mode\n");
}
}
/* End of makemodes.c */