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185 lines
4.6 KiB
C
185 lines
4.6 KiB
C
/* $NetBSD: usbd.c,v 1.2 1998/07/23 18:39:53 augustss Exp $ */
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/* FreeBSD $Id$ */
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/*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Author: Lennart Augustsson
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/time.h>
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#if defined(__FreeBSD__)
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#endif
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#include <dev/usb/usb.h>
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#define USBDEV "/dev/usb"
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#define MAXUSBDEV 4
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extern char *__progname;
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void usage(void);
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void
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usage(void)
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{
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fprintf(stderr, "Usage: %s [-d] [-e] [-f dev] [-t timeout] [-v]\n",
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__progname);
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exit(1);
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}
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#define NDEVS 20 /* maximum number of usb controllers */
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/*
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* Sometimes a device does not respond in time for interrupt
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* driven explore to find it. Therefore we run an exploration
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* at regular intervals to catch those.
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*/
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#define TIMEOUT 30
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int
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main(int argc, char **argv)
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{
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int r, i;
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char *devs[NDEVS];
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int ndevs = 0;
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int fds[NDEVS];
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fd_set fdset;
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int ch, verbose = 0;
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int debug = 0;
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int explore = 0;
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int itimo = TIMEOUT;
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int maxfd;
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char buf[50];
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struct timeval timo;
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extern char *optarg;
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extern int optind;
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while ((ch = getopt(argc, argv, "def:t:v")) != -1) {
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switch(ch) {
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case 'd':
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debug++;
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break;
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case 'e':
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explore++;
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break;
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case 'f':
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if (ndevs < NDEVS)
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devs[ndevs++] = optarg;
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break;
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case 't':
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itimo = atoi(optarg);
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break;
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case 'v':
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verbose++;
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break;
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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maxfd = 0;
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if (ndevs == 0) {
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for (i = 0; i < MAXUSBDEV; i++) {
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sprintf(buf, "%s%d", USBDEV, i);
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fds[ndevs] = open(buf, O_RDWR);
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if (fds[ndevs] >= 0) {
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devs[ndevs] = strdup(buf);
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if (verbose)
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printf("%s: opening %s\n",
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__progname, devs[ndevs]);
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if (fds[ndevs] > maxfd)
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maxfd = fds[ndevs];
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ndevs++;
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}
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}
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} else {
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for (i = 0; i < ndevs; i++) {
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fds[i] = open(devs[i], O_RDWR);
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if (fds[i] < 0)
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err(1, "%s", devs[i]);
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else if (fds[i] > maxfd)
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maxfd = fds[i];
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}
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}
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if (ndevs == 0) {
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if (verbose)
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printf("%s: no USB controllers found\n", __progname);
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exit(0);
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}
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if (explore) {
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for (i = 0; i < ndevs; i++) {
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r = ioctl(fds[i], USB_DISCOVER);
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if (r < 0)
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err(1, "USB_DISCOVER");
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}
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exit(0);
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}
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if (!debug)
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daemon(0, 0);
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FD_ZERO(&fdset);
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for (;;) {
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for (i = 0; i < ndevs; i++)
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FD_SET(fds[i], &fdset);
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timo.tv_usec = 0;
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timo.tv_sec = itimo;
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r = select(maxfd+1, &fdset, &fdset, 0, itimo ? &timo : 0);
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if (r < 0)
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warn("select failed\n");
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for (i = 0; i < ndevs; i++)
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if (r == 0 || FD_ISSET(fds[i], &fdset)) {
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if (verbose)
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printf("%s: doing %sdiscovery on %s\n",
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__progname, r ? "" : "timeout ",
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devs[i]);
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if (ioctl(fds[i], USB_DISCOVER) < 0)
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err(1, "USB_DISCOVER");
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}
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}
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}
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