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/param.h> 31 #include <sys/queue.h> 32 #include <sys/types.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/bus.h> 36 #include <sys/module.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/condvar.h> 40 #include <sys/sysctl.h> 41 #include <sys/callout.h> 42 #include <sys/malloc.h> 43 #include <sys/priv.h> 44 #include <sys/limits.h> 45 #include <sys/endian.h> 46 47 #include <dev/usb/usb.h> 48 #include <dev/usb/usbdi.h> 49 #endif /* USB_GLOBAL_INCLUDE_FILE */ 50 51 /*------------------------------------------------------------------------* 52 * usbd_lookup_id_by_info 53 * 54 * This functions takes an array of "struct usb_device_id" and tries 55 * to match the entries with the information in "struct usbd_lookup_info". 56 * 57 * NOTE: The "sizeof_id" parameter must be a multiple of the 58 * usb_device_id structure size. Else the behaviour of this function 59 * is undefined. 60 * 61 * Return values: 62 * NULL: No match found. 63 * Else: Pointer to matching entry. 64 *------------------------------------------------------------------------*/ 65 const struct usb_device_id * 66 usbd_lookup_id_by_info(const struct usb_device_id *id, usb_size_t sizeof_id, 67 const struct usbd_lookup_info *info) 68 { 69 const struct usb_device_id *id_end; 70 71 if (id == NULL) { 72 goto done; 73 } 74 id_end = (const void *)(((const uint8_t *)id) + sizeof_id); 75 76 /* 77 * Keep on matching array entries until we find a match or 78 * until we reach the end of the matching array: 79 */ 80 for (; id != id_end; id++) { 81 82 if ((id->match_flag_vendor) && 83 (id->idVendor != info->idVendor)) { 84 continue; 85 } 86 if ((id->match_flag_product) && 87 (id->idProduct != info->idProduct)) { 88 continue; 89 } 90 if ((id->match_flag_dev_lo) && 91 (id->bcdDevice_lo > info->bcdDevice)) { 92 continue; 93 } 94 if ((id->match_flag_dev_hi) && 95 (id->bcdDevice_hi < info->bcdDevice)) { 96 continue; 97 } 98 if ((id->match_flag_dev_class) && 99 (id->bDeviceClass != info->bDeviceClass)) { 100 continue; 101 } 102 if ((id->match_flag_dev_subclass) && 103 (id->bDeviceSubClass != info->bDeviceSubClass)) { 104 continue; 105 } 106 if ((id->match_flag_dev_protocol) && 107 (id->bDeviceProtocol != info->bDeviceProtocol)) { 108 continue; 109 } 110 if ((id->match_flag_int_class) && 111 (id->bInterfaceClass != info->bInterfaceClass)) { 112 continue; 113 } 114 if ((id->match_flag_int_subclass) && 115 (id->bInterfaceSubClass != info->bInterfaceSubClass)) { 116 continue; 117 } 118 if ((id->match_flag_int_protocol) && 119 (id->bInterfaceProtocol != info->bInterfaceProtocol)) { 120 continue; 121 } 122 /* We found a match! */ 123 return (id); 124 } 125 126 done: 127 return (NULL); 128 } 129 130 /*------------------------------------------------------------------------* 131 * usbd_lookup_id_by_uaa - factored out code 132 * 133 * Return values: 134 * 0: Success 135 * Else: Failure 136 *------------------------------------------------------------------------*/ 137 int 138 usbd_lookup_id_by_uaa(const struct usb_device_id *id, usb_size_t sizeof_id, 139 struct usb_attach_arg *uaa) 140 { 141 id = usbd_lookup_id_by_info(id, sizeof_id, &uaa->info); 142 if (id) { 143 /* copy driver info */ 144 uaa->driver_info = id->driver_info; 145 return (0); 146 } 147 return (ENXIO); 148 } 149 150 /*------------------------------------------------------------------------* 151 * Export the USB device ID format we use to userspace tools. 152 *------------------------------------------------------------------------*/ 153 #if BYTE_ORDER == LITTLE_ENDIAN 154 #define U16_XOR "0" 155 #else 156 #define U16_XOR "8" 157 #endif 158 159 #if defined(KLD_MODULE) && (USB_HAVE_ID_SECTION != 0) 160 static const char __section("bus_autoconf_format") __used usb_id_format[] = { 161 162 /* Declare that three different sections use the same format */ 163 164 "usb_host_id{256,:}" 165 "usb_device_id{256,:}" 166 "usb_dual_id{256,:}" 167 168 /* List size of fields in the usb_device_id structure */ 169 170 "mf_vendor{" U16_XOR ",1}" 171 "mf_product{" U16_XOR ",1}" 172 "mf_dev_lo{" U16_XOR ",1}" 173 "mf_dev_hi{" U16_XOR ",1}" 174 175 "mf_dev_class{" U16_XOR ",1}" 176 "mf_dev_subclass{" U16_XOR ",1}" 177 "mf_dev_protocol{" U16_XOR ",1}" 178 "mf_int_class{" U16_XOR ",1}" 179 180 "mf_int_subclass{" U16_XOR ",1}" 181 "mf_int_protocol{" U16_XOR ",1}" 182 "unused{" U16_XOR ",6}" 183 184 "idVendor[0]{" U16_XOR ",8}" 185 "idVendor[1]{" U16_XOR ",8}" 186 "idProduct[0]{" U16_XOR ",8}" 187 "idProduct[1]{" U16_XOR ",8}" 188 "bcdDevice_lo[0]{" U16_XOR ",8}" 189 "bcdDevice_lo[1]{" U16_XOR ",8}" 190 "bcdDevice_hi[0]{" U16_XOR ",8}" 191 "bcdDevice_hi[1]{" U16_XOR ",8}" 192 193 "bDeviceClass{0,8}" 194 "bDeviceSubClass{0,8}" 195 "bDeviceProtocol{0,8}" 196 "bInterfaceClass{0,8}" 197 "bInterfaceSubClass{0,8}" 198 "bInterfaceProtocol{0,8}" 199 200 #if USB_HAVE_COMPAT_LINUX 201 "mfl_vendor{" U16_XOR ",1}" 202 "mfl_product{" U16_XOR ",1}" 203 "mfl_dev_lo{" U16_XOR ",1}" 204 "mfl_dev_hi{" U16_XOR ",1}" 205 206 "mfl_dev_class{" U16_XOR ",1}" 207 "mfl_dev_subclass{" U16_XOR ",1}" 208 "mfl_dev_protocol{" U16_XOR ",1}" 209 "mfl_int_class{" U16_XOR ",1}" 210 211 "mfl_int_subclass{" U16_XOR ",1}" 212 "mfl_int_protocol{" U16_XOR ",1}" 213 "unused{" U16_XOR ",6}" 214 #endif 215 }; 216 #endif 217