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NetBSD/usr.bin/usbhidctl/usbhid.c

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/* $NetBSD: usbhid.c,v 1.6 1998/12/03 20:46:10 augustss 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <err.h>
#include <ctype.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <errno.h>
#include "hidsubr.h"
#define HIDTABLE "/usr/share/misc/usb_hid_usages"
#define USBDEV "/dev/uhid0"
int verbose = 0;
int all = 0;
int noname = 0;
char **names;
int nnames;
void prbits(int bits, char **strs, int n);
void usage(void);
void dumpitems(u_char *buf, int len);
void rev(struct hid_item **p);
u_long getdata(u_char *buf, int hpos, int hsize, int sign);
void prdata(u_char *buf, struct hid_item *h);
void dumpdata(int f, u_char *buf, int len, int loop);
int gotname(char *n);
int
gotname(char *n)
{
int i;
for (i = 0; i < nnames; i++)
if (strcmp(names[i], n) == 0)
return 1;
return 0;
}
void
prbits(int bits, char **strs, int n)
{
int i;
for(i = 0; i < n; i++, bits >>= 1)
if (strs[i*2])
printf("%s%s", i == 0 ? "" : ", ", strs[i*2 + (bits&1)]);
}
void
usage(void)
{
extern char *__progname;
fprintf(stderr, "Usage: %s -f device [-l] [-n] [-r] [-t tablefile] [-v] name ...\n", __progname);
fprintf(stderr, " %s -f device [-l] [-n] [-r] [-t tablefile] [-v] -a\n", __progname);
exit(1);
}
void
dumpitems(u_char *buf, int len)
{
struct hid_data *d;
struct hid_item h;
for (d = hid_start_parse(buf, len, ~0); hid_get_item(d, &h); ) {
switch (h.kind) {
case hid_collection:
printf("Collection page=%s usage=%s\n",
usage_page(HID_PAGE(h.usage)),
usage_in_page(h.usage));
break;
case hid_endcollection:
printf("End collection\n");
break;
case hid_input:
printf("Input size=%d count=%d page=%s usage=%s%s\n",
h.report_size, h.report_count,
usage_page(HID_PAGE(h.usage)),
usage_in_page(h.usage),
h.flags & HIO_CONST ? " Const" : "");
break;
case hid_output:
printf("Output size=%d count=%d page=%s usage=%s%s\n",
h.report_size, h.report_count,
usage_page(HID_PAGE(h.usage)),
usage_in_page(h.usage),
h.flags & HIO_CONST ? " Const" : "");
break;
case hid_feature:
printf("Feature size=%d count=%d page=%s usage=%s%s\n",
h.report_size, h.report_count,
usage_page(HID_PAGE(h.usage)),
usage_in_page(h.usage),
h.flags & HIO_CONST ? " Const" : "");
break;
}
}
hid_end_parse(d);
printf("Total input size %d bytes\n",
hid_report_size(buf, len, hid_input));
printf("Total output size %d bytes\n",
hid_report_size(buf, len, hid_output));
printf("Total feature size %d bytes\n",
hid_report_size(buf, len, hid_feature));
}
void
rev(struct hid_item **p)
{
struct hid_item *cur, *prev, *next;
prev = 0;
cur = *p;
while(cur != 0) {
next = cur->next;
cur->next = prev;
prev = cur;
cur = next;
}
*p = prev;
}
u_long
getdata(u_char *buf, int hpos, int hsize, int sign)
{
u_long data;
int i, size, s;
data = 0;
s = hpos/8;
for (i = hpos; i < hpos+hsize; i += 8)
data |= buf[i / 8] << ((i/8-s) * 8);
data >>= (hpos % 8);
data &= (1 << hsize) - 1;
size = 32 - hsize;
if (sign)
/* Need to sign extend */
data = ((long)data << size) >> size;
return data;
}
void
prdata(u_char *buf, struct hid_item *h)
{
u_long data;
int i, pos;
pos = h->pos;
for (i = 0; i < h->report_count; i++) {
data = getdata(buf, pos, h->report_size,
h->logical_minimum < 0);
if (h->logical_minimum < 0)
printf("%ld", (long)data);
else
printf("%lu", data);
pos += h->report_size;
}
}
void
dumpdata(int f, u_char *buf, int len, int loop)
{
struct hid_data *d;
struct hid_item h, *hids, *n;
int r, dlen;
u_char *dbuf;
static int one = 1;
u_int32_t colls[100];
int sp = 0;
char namebuf[10000], *namep;
hids = 0;
for (d = hid_start_parse(buf, len, 1<<hid_input);
hid_get_item(d, &h); ) {
if (h.kind == hid_collection)
colls[++sp] = h.usage;
else if (h.kind == hid_endcollection)
--sp;
if (h.kind != hid_input || (h.flags & HIO_CONST))
continue;
h.next = hids;
h.collection = colls[sp];
hids = malloc(sizeof *hids);
*hids = h;
}
hid_end_parse(d);
rev(&hids);
dlen = hid_report_size(buf, len, hid_input);
dbuf = malloc(dlen);
if (!loop)
if (ioctl(f, USB_SET_IMMED, &one) < 0) {
if (errno == EOPNOTSUPP)
warnx("device does not support immediate mode, only changes reported.");
else
err(1, "USB_SET_IMMED");
}
do {
r = read(f, dbuf, dlen);
if (r != dlen) {
err(1, "bad read %d != %d", r, dlen);
}
for (n = hids; n; n = n->next) {
namep = namebuf;
namep += sprintf(namep, "%s:%s.",
usage_page(HID_PAGE(n->collection)),
usage_in_page(n->collection));
namep += sprintf(namep, "%s:%s",
usage_page(HID_PAGE(n->usage)),
usage_in_page(n->usage));
if (all || gotname(namebuf)) {
if (!noname)
printf("%s=", namebuf);
prdata(dbuf, n);
if (verbose)
printf(" [%d - %d]",
n->logical_minimum,
n->logical_maximum);
printf("\n");
}
}
if (loop)
printf("\n");
} while (loop);
free(dbuf);
}
int
main(int argc, char **argv)
{
int f, r;
char devname[100], *dev = 0;
int ch;
extern char *optarg;
extern int optind;
struct usb_ctl_report_desc rep;
int repdump = 0;
int loop = 0;
char *table = HIDTABLE;
while ((ch = getopt(argc, argv, "af:lnrt:v")) != -1) {
switch(ch) {
case 'a':
all++;
break;
case 'f':
dev = optarg;
break;
case 'l':
loop ^= 1;
break;
case 'n':
noname++;
break;
case 'r':
repdump++;
break;
case 't':
table = optarg;
break;
case 'v':
verbose++;
break;
case '?':
default:
usage();
}
}
argc -= optind;
argv += optind;
if (dev == 0)
usage();
names = argv;
nnames = argc;
if (nnames == 0 && !all)
usage();
if (dev[0] != '/') {
if (isdigit(dev[0]))
sprintf(devname, "/dev/uhid%s", dev);
else
sprintf(devname, "/dev/%s", dev);
dev = devname;
}
init_hid(table);
f = open(dev, O_RDWR);
if (f < 0)
err(1, "%s", dev);
rep.size = 0;
r = ioctl(f, USB_GET_REPORT_DESC, &rep);
if (r)
errx(1, "USB_GET_REPORT_DESC");
if (repdump) {
printf("Report descriptor\n");
dumpitems(rep.data, rep.size);
}
dumpdata(f, rep.data, rep.size, loop);
exit(0);
}
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