1/* $FreeBSD$ */ 2/*- 3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#ifdef USB_GLOBAL_INCLUDE_FILE 28#include USB_GLOBAL_INCLUDE_FILE 29#else 30#include <sys/stdint.h> 31#include <sys/stddef.h> 32#include <sys/param.h> 33#include <sys/queue.h> 34#include <sys/types.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/bus.h> 38#include <sys/module.h> 39#include <sys/lock.h> 40#include <sys/mutex.h> 41#include <sys/condvar.h> 42#include <sys/sysctl.h> 43#include <sys/sx.h> 44#include <sys/unistd.h> 45#include <sys/callout.h> 46#include <sys/malloc.h> 47#include <sys/priv.h> 48#include <sys/limits.h> 49#include <sys/endian.h> 50 51#include <dev/usb/usb.h> 52#include <dev/usb/usbdi.h> 53#endif /* USB_GLOBAL_INCLUDE_FILE */ 54 55/*------------------------------------------------------------------------* 56 * usbd_lookup_id_by_info 57 * 58 * This functions takes an array of "struct usb_device_id" and tries 59 * to match the entries with the information in "struct usbd_lookup_info". 60 * 61 * NOTE: The "sizeof_id" parameter must be a multiple of the 62 * usb_device_id structure size. Else the behaviour of this function 63 * is undefined. 64 * 65 * Return values: 66 * NULL: No match found. 67 * Else: Pointer to matching entry. 68 *------------------------------------------------------------------------*/ 69const struct usb_device_id * 70usbd_lookup_id_by_info(const struct usb_device_id *id, usb_size_t sizeof_id, 71 const struct usbd_lookup_info *info) 72{ 73 const struct usb_device_id *id_end; 74 75 if (id == NULL) { 76 goto done; 77 } 78 id_end = (const void *)(((const uint8_t *)id) + sizeof_id); 79 80 /* 81 * Keep on matching array entries until we find a match or 82 * until we reach the end of the matching array: 83 */ 84 for (; id != id_end; id++) { 85 86 if ((id->match_flag_vendor) && 87 (id->idVendor != info->idVendor)) { 88 continue; 89 } 90 if ((id->match_flag_product) && 91 (id->idProduct != info->idProduct)) { 92 continue; 93 } 94 if ((id->match_flag_dev_lo) && 95 (id->bcdDevice_lo > info->bcdDevice)) { 96 continue; 97 } 98 if ((id->match_flag_dev_hi) && 99 (id->bcdDevice_hi < info->bcdDevice)) { 100 continue; 101 } 102 if ((id->match_flag_dev_class) && 103 (id->bDeviceClass != info->bDeviceClass)) { 104 continue; 105 } 106 if ((id->match_flag_dev_subclass) && 107 (id->bDeviceSubClass != info->bDeviceSubClass)) { 108 continue; 109 } 110 if ((id->match_flag_dev_protocol) && 111 (id->bDeviceProtocol != info->bDeviceProtocol)) { 112 continue; 113 } 114 if ((id->match_flag_int_class) && 115 (id->bInterfaceClass != info->bInterfaceClass)) { 116 continue; 117 } 118 if ((id->match_flag_int_subclass) && 119 (id->bInterfaceSubClass != info->bInterfaceSubClass)) { 120 continue; 121 } 122 if ((id->match_flag_int_protocol) && 123 (id->bInterfaceProtocol != info->bInterfaceProtocol)) { 124 continue; 125 } 126 /* We found a match! */ 127 return (id); 128 } 129 130done: 131 return (NULL); 132} 133 134/*------------------------------------------------------------------------* 135 * usbd_lookup_id_by_uaa - factored out code 136 * 137 * Return values: 138 * 0: Success 139 * Else: Failure 140 *------------------------------------------------------------------------*/ 141int 142usbd_lookup_id_by_uaa(const struct usb_device_id *id, usb_size_t sizeof_id, 143 struct usb_attach_arg *uaa) 144{ 145 id = usbd_lookup_id_by_info(id, sizeof_id, &uaa->info); 146 if (id) { 147 /* copy driver info */ 148 uaa->driver_info = id->driver_info; 149 return (0); 150 } 151 return (ENXIO); 152} 153 154/*------------------------------------------------------------------------* 155 * Export the USB device ID format we use to userspace tools. 156 *------------------------------------------------------------------------*/ 157#if BYTE_ORDER == LITTLE_ENDIAN 158#define U16_XOR "0" 159#else 160#define U16_XOR "8" 161#endif 162 163#if defined(KLD_MODULE) && (USB_HAVE_ID_SECTION != 0) 164static const char __section("bus_autoconf_format") __used usb_id_format[] = { 165 166 /* Declare that three different sections use the same format */ 167 168 "usb_host_id{256,:}" 169 "usb_device_id{256,:}" 170 "usb_dual_id{256,:}" 171 172 /* List size of fields in the usb_device_id structure */ 173 174 "mf_vendor{" U16_XOR ",1}" 175 "mf_product{" U16_XOR ",1}" 176 "mf_dev_lo{" U16_XOR ",1}" 177 "mf_dev_hi{" U16_XOR ",1}" 178 179 "mf_dev_class{" U16_XOR ",1}" 180 "mf_dev_subclass{" U16_XOR ",1}" 181 "mf_dev_protocol{" U16_XOR ",1}" 182 "mf_int_class{" U16_XOR ",1}" 183 184 "mf_int_subclass{" U16_XOR ",1}" 185 "mf_int_protocol{" U16_XOR ",1}" 186 "unused{" U16_XOR ",6}" 187 188 "idVendor[0]{" U16_XOR ",8}" 189 "idVendor[1]{" U16_XOR ",8}" 190 "idProduct[0]{" U16_XOR ",8}" 191 "idProduct[1]{" U16_XOR ",8}" 192 "bcdDevice_lo[0]{" U16_XOR ",8}" 193 "bcdDevice_lo[1]{" U16_XOR ",8}" 194 "bcdDevice_hi[0]{" U16_XOR ",8}" 195 "bcdDevice_hi[1]{" U16_XOR ",8}" 196 197 "bDeviceClass{0,8}" 198 "bDeviceSubClass{0,8}" 199 "bDeviceProtocol{0,8}" 200 "bInterfaceClass{0,8}" 201 "bInterfaceSubClass{0,8}" 202 "bInterfaceProtocol{0,8}" 203 204#if USB_HAVE_COMPAT_LINUX 205 "mfl_vendor{" U16_XOR ",1}" 206 "mfl_product{" U16_XOR ",1}" 207 "mfl_dev_lo{" U16_XOR ",1}" 208 "mfl_dev_hi{" U16_XOR ",1}" 209 210 "mfl_dev_class{" U16_XOR ",1}" 211 "mfl_dev_subclass{" U16_XOR ",1}" 212 "mfl_dev_protocol{" U16_XOR ",1}" 213 "mfl_int_class{" U16_XOR ",1}" 214 215 "mfl_int_subclass{" U16_XOR ",1}" 216 "mfl_int_protocol{" U16_XOR ",1}" 217 "unused{" U16_XOR ",6}" 218#endif 219}; 220#endif 221