8010f4ad21
This codepath used uint64_t's in place of pointers in structs and arrays to allow 32-bit code to use 64-bit version of ioctls. Now that we support 32-bit compat natively this is no longer needed. Reviewed by: hselasky, jrtc27 (prior version)
179 lines
4.0 KiB
C
179 lines
4.0 KiB
C
/* $NetBSD: descr.c,v 1.9 2000/09/24 02:13:24 augustss Exp $ */
|
|
|
|
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-NetBSD
|
|
*
|
|
* Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org>
|
|
* All rights reserved.
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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 <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/time.h>
|
|
#include <sys/ioctl.h>
|
|
#include <dev/usb/usb_ioctl.h>
|
|
|
|
#include "usbhid.h"
|
|
#include "usbvar.h"
|
|
|
|
int
|
|
hid_set_immed(int fd, int enable)
|
|
{
|
|
int ret;
|
|
ret = ioctl(fd, USB_SET_IMMED, &enable);
|
|
#ifdef HID_COMPAT7
|
|
if (ret < 0)
|
|
ret = hid_set_immed_compat7(fd, enable);
|
|
#endif
|
|
return (ret);
|
|
}
|
|
|
|
int
|
|
hid_get_report_id(int fd)
|
|
{
|
|
report_desc_t rep;
|
|
hid_data_t d;
|
|
hid_item_t h;
|
|
int kindset;
|
|
int temp = -1;
|
|
int ret;
|
|
|
|
if ((rep = hid_get_report_desc(fd)) == NULL)
|
|
goto use_ioctl;
|
|
kindset = 1 << hid_input | 1 << hid_output | 1 << hid_feature;
|
|
for (d = hid_start_parse(rep, kindset, -1); hid_get_item(d, &h); ) {
|
|
/* Return the first report ID we met. */
|
|
if (h.report_ID != 0) {
|
|
temp = h.report_ID;
|
|
break;
|
|
}
|
|
}
|
|
hid_end_parse(d);
|
|
hid_dispose_report_desc(rep);
|
|
|
|
if (temp > 0)
|
|
return (temp);
|
|
|
|
use_ioctl:
|
|
ret = ioctl(fd, USB_GET_REPORT_ID, &temp);
|
|
#ifdef HID_COMPAT7
|
|
if (ret < 0)
|
|
ret = hid_get_report_id_compat7(fd);
|
|
else
|
|
#endif
|
|
ret = temp;
|
|
|
|
return (ret);
|
|
}
|
|
|
|
report_desc_t
|
|
hid_get_report_desc(int fd)
|
|
{
|
|
struct usb_gen_descriptor ugd;
|
|
report_desc_t rep;
|
|
void *data;
|
|
|
|
memset(&ugd, 0, sizeof(ugd));
|
|
|
|
/* get actual length first */
|
|
ugd.ugd_data = NULL;
|
|
ugd.ugd_maxlen = 65535;
|
|
if (ioctl(fd, USB_GET_REPORT_DESC, &ugd) < 0) {
|
|
#ifdef HID_COMPAT7
|
|
/* could not read descriptor */
|
|
/* try FreeBSD 7 compat code */
|
|
return (hid_get_report_desc_compat7(fd));
|
|
#else
|
|
return (NULL);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* NOTE: The kernel will return a failure if
|
|
* "ugd_actlen" is zero.
|
|
*/
|
|
data = malloc(ugd.ugd_actlen);
|
|
if (data == NULL)
|
|
return (NULL);
|
|
|
|
/* fetch actual descriptor */
|
|
ugd.ugd_data = data;
|
|
ugd.ugd_maxlen = ugd.ugd_actlen;
|
|
if (ioctl(fd, USB_GET_REPORT_DESC, &ugd) < 0) {
|
|
/* could not read descriptor */
|
|
free(data);
|
|
return (NULL);
|
|
}
|
|
|
|
/* sanity check */
|
|
if (ugd.ugd_actlen < 1) {
|
|
/* invalid report descriptor */
|
|
free(data);
|
|
return (NULL);
|
|
}
|
|
|
|
/* check END_COLLECTION */
|
|
if (((unsigned char *)data)[ugd.ugd_actlen -1] != 0xC0) {
|
|
/* invalid end byte */
|
|
free(data);
|
|
return (NULL);
|
|
}
|
|
|
|
rep = hid_use_report_desc(data, ugd.ugd_actlen);
|
|
|
|
free(data);
|
|
|
|
return (rep);
|
|
}
|
|
|
|
report_desc_t
|
|
hid_use_report_desc(unsigned char *data, unsigned int size)
|
|
{
|
|
report_desc_t r;
|
|
|
|
r = malloc(sizeof(*r) + size);
|
|
if (r == NULL) {
|
|
errno = ENOMEM;
|
|
return (NULL);
|
|
}
|
|
r->size = size;
|
|
memcpy(r->data, data, size);
|
|
return (r);
|
|
}
|
|
|
|
void
|
|
hid_dispose_report_desc(report_desc_t r)
|
|
{
|
|
|
|
free(r);
|
|
}
|