3 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifdef USB_GLOBAL_INCLUDE_FILE
30 #include USB_GLOBAL_INCLUDE_FILE
32 #include <sys/stdint.h>
33 #include <sys/stddef.h>
34 #include <sys/param.h>
35 #include <sys/queue.h>
36 #include <sys/types.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
40 #include <sys/module.h>
42 #include <sys/mutex.h>
43 #include <sys/condvar.h>
44 #include <sys/sysctl.h>
46 #include <sys/unistd.h>
47 #include <sys/callout.h>
48 #include <sys/malloc.h>
50 #include <sys/limits.h>
51 #include <sys/endian.h>
53 #include <dev/usb/usb.h>
54 #include <dev/usb/usbdi.h>
55 #endif /* USB_GLOBAL_INCLUDE_FILE */
57 /*------------------------------------------------------------------------*
58 * usbd_lookup_id_by_info
60 * This functions takes an array of "struct usb_device_id" and tries
61 * to match the entries with the information in "struct usbd_lookup_info".
63 * NOTE: The "sizeof_id" parameter must be a multiple of the
64 * usb_device_id structure size. Else the behaviour of this function
68 * NULL: No match found.
69 * Else: Pointer to matching entry.
70 *------------------------------------------------------------------------*/
71 const struct usb_device_id *
72 usbd_lookup_id_by_info(const struct usb_device_id *id, usb_size_t sizeof_id,
73 const struct usbd_lookup_info *info)
75 const struct usb_device_id *id_end;
80 id_end = (const void *)(((const uint8_t *)id) + sizeof_id);
83 * Keep on matching array entries until we find a match or
84 * until we reach the end of the matching array:
86 for (; id != id_end; id++) {
87 if ((id->match_flag_vendor) &&
88 (id->idVendor != info->idVendor)) {
91 if ((id->match_flag_product) &&
92 (id->idProduct != info->idProduct)) {
95 if ((id->match_flag_dev_lo) &&
96 (id->bcdDevice_lo > info->bcdDevice)) {
99 if ((id->match_flag_dev_hi) &&
100 (id->bcdDevice_hi < info->bcdDevice)) {
103 if ((id->match_flag_dev_class) &&
104 (id->bDeviceClass != info->bDeviceClass)) {
107 if ((id->match_flag_dev_subclass) &&
108 (id->bDeviceSubClass != info->bDeviceSubClass)) {
111 if ((id->match_flag_dev_protocol) &&
112 (id->bDeviceProtocol != info->bDeviceProtocol)) {
115 if ((id->match_flag_int_class) &&
116 (id->bInterfaceClass != info->bInterfaceClass)) {
119 if ((id->match_flag_int_subclass) &&
120 (id->bInterfaceSubClass != info->bInterfaceSubClass)) {
123 if ((id->match_flag_int_protocol) &&
124 (id->bInterfaceProtocol != info->bInterfaceProtocol)) {
127 /* We found a match! */
135 /*------------------------------------------------------------------------*
136 * usbd_lookup_id_by_uaa - factored out code
141 *------------------------------------------------------------------------*/
143 usbd_lookup_id_by_uaa(const struct usb_device_id *id, usb_size_t sizeof_id,
144 struct usb_attach_arg *uaa)
146 id = usbd_lookup_id_by_info(id, sizeof_id, &uaa->info);
148 /* copy driver info */
149 uaa->driver_info = id->driver_info;