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git://projects.qi-hardware.com/ben-blinkenlights.git
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90 lines
1.5 KiB
C
90 lines
1.5 KiB
C
/*
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* ubbctl.c - Set and query UBB signals
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*
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* Written 2013 by Werner Almesberger
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* Copyright 2013 Werner Almesberger
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <stddef.h>
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#include <stdint.h>
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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 <ubb/ubb.h>
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static struct pin {
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const char *name;
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uint32_t mask;
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} pins[] = {
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{ "nPWR", UBB_nPWR },
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{ "DAT2", UBB_DAT2 },
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{ "DAT3", UBB_DAT3 },
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{ "CMD", UBB_CMD },
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{ "CLK", UBB_CLK },
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{ "DAT0", UBB_DAT0 },
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{ "DAT1", UBB_DAT1 },
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{ NULL }
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};
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static void show_pins(void)
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{
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const struct pin *p;
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int pin, set;
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for (p = pins; p->name; p++) {
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printf("%s%s=", p == pins ? "" : " ", p->name);
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pin = PIN(p->mask);
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if (PDFUN & p->mask) {
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printf("FN");
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} else if (PDDIR & p->mask) {
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set = !!(PDDAT & p->mask);
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if (pin != set)
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printf("%d!", set);
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} else {
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putchar(PDPULL & p->mask ? 'Z' : 'R');
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}
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printf("%d", pin);
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}
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printf("\n");
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}
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static void usage(const char *name)
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{
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fprintf(stderr,
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"usage: %s\n"
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, name);
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exit(1);
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}
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int main(int argc, char **argv)
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{
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int c;
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while ((c = getopt(argc, argv, "")) != EOF)
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switch (c) {
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default:
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usage(*argv);
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}
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switch (argc-optind) {
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case 0:
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break;
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default:
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usage(*argv);
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}
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ubb_open(UBB_ALL);
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show_pins();
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return 0;
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}
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