OpenBSD-4.6/usr.sbin/usbdevs/usbdevs.c
/* $OpenBSD: usbdevs.c,v 1.17 2008/09/04 11:46:18 jsg Exp $ */
/* $NetBSD: usbdevs.c,v 1.19 2002/02/21 00:34:31 christos Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (augustss@netbsd.org).
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <err.h>
#include <errno.h>
#include <dev/usb/usb.h>
#define USBDEV "/dev/usb"
int verbose = 0;
int showdevs = 0;
void usage(void);
void usbdev(int f, int a, int rec);
int getdevicedesc(int, int, usb_device_descriptor_t *);
void getstring(int, int, int, char *, int);
void usbdump(int f);
void dumpone(char *name, int f, int addr);
int main(int, char **);
extern char *__progname;
void
usage(void)
{
fprintf(stderr, "usage: %s [-dv] [-a addr] [-f dev]\n", __progname);
exit(1);
}
char done[USB_MAX_DEVICES];
int indent;
void
usbdev(int f, int a, int rec)
{
struct usb_device_info di;
usb_device_descriptor_t dd;
char serialnum[USB_MAX_STRING_LEN];
struct usb_ctl_request req;
usb_string_descriptor_t us;
int e, p, i;
int langid = 0;
di.udi_addr = a;
e = ioctl(f, USB_DEVICEINFO, &di);
if (e) {
if (errno != ENXIO)
printf("addr %d: I/O error\n", a);
return;
}
req.ucr_addr = a;
req.ucr_request.bmRequestType = UT_READ_DEVICE;
req.ucr_request.bRequest = UR_GET_DESCRIPTOR;
req.ucr_data = &us;
USETW2(req.ucr_request.wValue, UDESC_STRING, 0);
USETW(req.ucr_request.wIndex, 0);
USETW(req.ucr_request.wLength, 4);
req.ucr_flags = 0;
if (ioctl(f, USB_REQUEST, &req) >= 0)
langid = UGETW(us.bString[0]);
bzero(serialnum, sizeof serialnum);
if (getdevicedesc(f, a, &dd))
getstring(f, a, dd.iSerialNumber, serialnum, langid);
printf("addr %d: ", a);
done[a] = 1;
if (verbose) {
switch (di.udi_speed) {
case USB_SPEED_LOW:
printf("low speed, ");
break;
case USB_SPEED_FULL:
printf("full speed, ");
break;
case USB_SPEED_HIGH:
printf("high speed, ");
break;
default:
break;
}
if (di.udi_power)
printf("power %d mA, ", di.udi_power);
else
printf("self powered, ");
if (di.udi_config)
printf("config %d, ", di.udi_config);
else
printf("unconfigured, ");
}
if (verbose) {
printf("%s(0x%04x), %s(0x%04x), rev %s",
di.udi_product, di.udi_productNo,
di.udi_vendor, di.udi_vendorNo, di.udi_release);
if (strlen(serialnum))
printf(", iSerialNumber %s", serialnum);
} else
printf("%s, %s", di.udi_product, di.udi_vendor);
printf("\n");
if (showdevs) {
for (i = 0; i < USB_MAX_DEVNAMES; i++)
if (di.udi_devnames[i][0])
printf("%*s %s\n", indent, "",
di.udi_devnames[i]);
}
if (!rec)
return;
for (p = 0; p < di.udi_nports; p++) {
int s = di.udi_ports[p];
if (s >= USB_MAX_DEVICES) {
if (verbose) {
printf("%*sport %d %s\n", indent+1, "", p+1,
s == USB_PORT_ENABLED ? "enabled" :
s == USB_PORT_SUSPENDED ? "suspended" :
s == USB_PORT_POWERED ? "powered" :
s == USB_PORT_DISABLED ? "disabled" :
"???");
}
continue;
}
indent++;
printf("%*s", indent, "");
if (verbose)
printf("port %d ", p+1);
if (s == 0)
printf("addr 0 should never happen!\n");
else
usbdev(f, s, 1);
indent--;
}
}
int
getdevicedesc(int f, int addr, usb_device_descriptor_t *d)
{
struct usb_ctl_request req;
int r;
req.ucr_addr = addr;
req.ucr_request.bmRequestType = UT_READ_DEVICE;
req.ucr_request.bRequest = UR_GET_DESCRIPTOR;
USETW2(req.ucr_request.wValue, UDESC_DEVICE, 0);
USETW(req.ucr_request.wIndex, 0);
USETW(req.ucr_request.wLength, USB_DEVICE_DESCRIPTOR_SIZE);
req.ucr_data = d;
req.ucr_flags = 0;
if ((r = ioctl(f, USB_REQUEST, &req)) == -1)
perror("getdevicedesc: ioctl");
return (r != -1);
}
void
getstring(int f, int addr, int si, char *s, int langid)
{
struct usb_ctl_request req;
usb_string_descriptor_t us;
int r, i, n;
u_int16_t c;
if (si == 0) {
*s = 0;
return;
}
req.ucr_addr = addr;
req.ucr_request.bmRequestType = UT_READ_DEVICE;
req.ucr_request.bRequest = UR_GET_DESCRIPTOR;
req.ucr_data = &us;
USETW2(req.ucr_request.wValue, UDESC_STRING, si);
USETW(req.ucr_request.wIndex, langid);
USETW(req.ucr_request.wLength, sizeof(usb_string_descriptor_t));
req.ucr_flags = USBD_SHORT_XFER_OK;
if (ioctl(f, USB_REQUEST, &req) == -1){
perror("getstring: ioctl");
*s = 0;
return;
}
n = us.bLength / 2 - 1;
for (i = 0; i < n; i++) {
c = UGETW(us.bString[i]);
if ((c & 0xff00) == 0)
*s++ = c;
else if ((c & 0x00ff) == 0)
*s++ = c >> 8;
else {
snprintf(s, 6, "\\u%04x", c);
s += 6;
}
}
*s++ = 0;
}
void
usbdump(int f)
{
int a;
for (a = 1; a < USB_MAX_DEVICES; a++) {
if (!done[a])
usbdev(f, a, 1);
}
}
void
dumpone(char *name, int f, int addr)
{
if (verbose)
printf("Controller %s:\n", name);
indent = 0;
memset(done, 0, sizeof done);
if (addr)
usbdev(f, addr, 0);
else
usbdump(f);
}
int
main(int argc, char **argv)
{
int ch, i, f;
char buf[50];
char *dev = 0;
int addr = 0;
int ncont;
while ((ch = getopt(argc, argv, "a:df:v?")) != -1) {
switch (ch) {
case 'a':
addr = atoi(optarg);
break;
case 'd':
showdevs++;
break;
case 'f':
dev = optarg;
break;
case 'v':
verbose = 1;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (dev == 0) {
for (ncont = 0, i = 0; i < 10; i++) {
snprintf(buf, sizeof buf, "%s%d", USBDEV, i);
f = open(buf, O_RDWR);
if (f >= 0) {
dumpone(buf, f, addr);
close(f);
} else {
if (errno == ENOENT || errno == ENXIO)
continue;
warn("%s", buf);
}
ncont++;
}
if (verbose && ncont == 0)
printf("%s: no USB controllers found\n",
__progname);
} else {
f = open(dev, O_RDWR);
if (f >= 0)
dumpone(dev, f, addr);
else
err(1, "%s", dev);
}
exit(0);
}