1 /* $NetBSD: usb_verbose.c,v 1.6 2011/12/23 00:51:48 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 1.6 2011/12/23 00:51:48 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 */ 47 struct usb_vendor { 48 usb_vendor_id_t vendor; 49 const char *vendorname; 50 }; 51 struct 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 59 void get_usb_vendor_real(char *, size_t, usb_vendor_id_t); 60 void get_usb_product_real(char *, size_t, usb_vendor_id_t, usb_product_id_t); 61 62 MODULE(MODULE_CLASS_MISC, usbverbose, NULL); 63 64 static int 65 usbverbose_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 89 void 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 } 100 101 void 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