1/*	$NetBSD: usb_verbose.c,v 1.5 2011/12/22 20:07:02 jakllsch Exp $ */
2/*	$FreeBSD: src/sys/dev/usb/usb_subr.c,v 1.18 1999/11/17 22:33:47 n_hibma Exp $	*/
3
4/*
5 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Lennart Augustsson (lennart@augustsson.net) at
10 * Carlstedt Research & Technology.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: usb_verbose.c,v 1.5 2011/12/22 20:07:02 jakllsch Exp $");
36
37#include <sys/param.h>
38#include <sys/module.h>
39
40#include <dev/usb/usb.h>
41#include <dev/usb/usbdevs.h>
42#include <dev/usb/usb_verbose.h>
43
44/*
45 * Descriptions of known vendors and devices ("products").
46 */
47struct usb_vendor {
48	usb_vendor_id_t		vendor;
49	const char		*vendorname;
50};
51struct usb_product {
52	usb_vendor_id_t		vendor;
53	usb_product_id_t	product;
54	const char		*productname;
55};
56
57#include <dev/usb/usbdevs_data.h>
58
59void get_usb_vendor_real(char *, size_t, usb_vendor_id_t);
60void get_usb_product_real(char *, size_t, usb_vendor_id_t, usb_product_id_t);
61
62MODULE(MODULE_CLASS_MISC, usbverbose, NULL);
63
64static int
65usbverbose_modcmd(modcmd_t cmd, void *arg)
66{
67	static void (*saved_usb_vendor)(char *, size_t, usb_vendor_id_t);
68	static void (*saved_usb_product)(char *, size_t, usb_vendor_id_t,
69		usb_product_id_t);
70
71	switch (cmd) {
72	case MODULE_CMD_INIT:
73		saved_usb_vendor = get_usb_vendor;
74		saved_usb_product = get_usb_product;
75		get_usb_vendor = get_usb_vendor_real;
76		get_usb_product = get_usb_product_real;
77		usb_verbose_loaded = 1;
78		return 0;
79	case MODULE_CMD_FINI:
80		get_usb_vendor = saved_usb_vendor;
81		get_usb_product = saved_usb_product;
82		usb_verbose_loaded = 0;
83		return 0;
84	default:
85		return ENOTTY;
86	}
87}
88
89void get_usb_vendor_real(char *v, size_t vl, usb_vendor_id_t v_id)
90{
91	int n;
92
93	/* There is no need for strlcpy below. */
94	for (n = 0; n < usb_nvendors; n++)
95		if (usb_vendors[n].vendor == v_id) {
96			strlcpy(v, usb_vendors[n].vendorname, vl);
97			break;
98		}
99}
100
101void get_usb_product_real(char *p, size_t pl, usb_vendor_id_t v_id,
102    usb_product_id_t p_id)
103{
104	int n;
105
106	/* There is no need for strlcpy below. */
107	for (n = 0; n < usb_nproducts; n++)
108		if (usb_products[n].vendor == v_id &&
109		    usb_products[n].product == p_id) {
110			strlcpy(p, usb_products[n].productname, pl);
111			break;
112		}
113}
114