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ubb-patgen/ubb-patgen.c: accept file (- for standard input) as pattern source
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@ -14,6 +14,7 @@
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <string.h>
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#include <math.h>
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#include <time.h>
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@ -194,6 +195,45 @@ static void *parse_pattern(const char *s, int *nibbles)
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}
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static const char *load_pattern(const char *s)
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{
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static char buf[20000]; /* more than enough :) */
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FILE *file;
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char *p = buf;
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int comment = 0;
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int c;
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if (!strcmp(s, "-")) {
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file = stdin;
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} else {
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file = fopen(s, "r");
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if (!file)
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return s;
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}
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while ((c = fgetc(file)) != EOF) {
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if (comment) {
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comment = c != '\n';
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continue;
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}
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if (c == '#') {
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comment = 1;
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continue;
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}
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if (isspace(c))
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continue;
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if (buf+sizeof(buf)-1 == p) {
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fprintf(stderr, "%s: file is too big\n", s);
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exit(1);
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}
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*p++ = c;
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}
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if (file != stdin)
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fclose(file);
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*p = 0;
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return buf;
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}
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/* ----- DMA control ------------------------------------------------------- */
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@ -449,7 +489,7 @@ static void usage(const char *name)
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"usage: %s\n"
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" %s [-q] -f freq_hz\n"
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" %s [-q] [-f freq_hz] -c [active_s]\n"
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" %s [-q] [-f freq_hz] [-C] pattern\n\n"
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" %s [-q] [-f freq_hz] [-C] file|pattern\n\n"
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" -c output bus clock on CLK without sending a pattern\n"
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" -C temporarily output bus clock on CLK (for debugging)\n"
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" -f freq_hz set bus clock to the specified frequency (default: 1 MHz)\n"
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@ -457,6 +497,7 @@ static void usage(const char *name)
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" differences.\n\n"
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" active_s keep running that many seconds after setting the clock\n"
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" (default: exit immediately but leave the clock on)\n"
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" file file containing the pattern\n"
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" pattern send the specified pattern on DAT0 through DAT3\n\n"
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"Frequency: the frequency in Hz, optionally followed by \"M\" or \"k\",\n"
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" optionally followed by \"Hz\", optionally followed by \"+\" or \"-\".\n"
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@ -538,6 +579,9 @@ int main(int argc, char **argv)
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usage(*argv);
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}
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if (pattern)
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pattern = load_pattern(pattern);
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ubb_open(UBB_ALL);
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PDFUNS = UBB_CMD;
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