Current Path : /sys/dev/usb/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/usb/usb_lookup.c |
/* $FreeBSD: release/9.1.0/sys/dev/usb/usb_lookup.c 223538 2011-06-25 15:51:44Z hselasky $ */ /*- * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <sys/stdint.h> #include <sys/stddef.h> #include <sys/param.h> #include <sys/queue.h> #include <sys/types.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/bus.h> #include <sys/module.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/condvar.h> #include <sys/sysctl.h> #include <sys/sx.h> #include <sys/unistd.h> #include <sys/callout.h> #include <sys/malloc.h> #include <sys/priv.h> #include <sys/limits.h> #include <sys/endian.h> #include <dev/usb/usb.h> #include <dev/usb/usbdi.h> /*------------------------------------------------------------------------* * usbd_lookup_id_by_info * * This functions takes an array of "struct usb_device_id" and tries * to match the entries with the information in "struct usbd_lookup_info". * * NOTE: The "sizeof_id" parameter must be a multiple of the * usb_device_id structure size. Else the behaviour of this function * is undefined. * * Return values: * NULL: No match found. * Else: Pointer to matching entry. *------------------------------------------------------------------------*/ const struct usb_device_id * usbd_lookup_id_by_info(const struct usb_device_id *id, usb_size_t sizeof_id, const struct usbd_lookup_info *info) { const struct usb_device_id *id_end; if (id == NULL) { goto done; } id_end = (const void *)(((const uint8_t *)id) + sizeof_id); /* * Keep on matching array entries until we find a match or * until we reach the end of the matching array: */ for (; id != id_end; id++) { if ((id->match_flag_vendor) && (id->idVendor != info->idVendor)) { continue; } if ((id->match_flag_product) && (id->idProduct != info->idProduct)) { continue; } if ((id->match_flag_dev_lo) && (id->bcdDevice_lo > info->bcdDevice)) { continue; } if ((id->match_flag_dev_hi) && (id->bcdDevice_hi < info->bcdDevice)) { continue; } if ((id->match_flag_dev_class) && (id->bDeviceClass != info->bDeviceClass)) { continue; } if ((id->match_flag_dev_subclass) && (id->bDeviceSubClass != info->bDeviceSubClass)) { continue; } if ((id->match_flag_dev_protocol) && (id->bDeviceProtocol != info->bDeviceProtocol)) { continue; } if ((id->match_flag_int_class) && (id->bInterfaceClass != info->bInterfaceClass)) { continue; } if ((id->match_flag_int_subclass) && (id->bInterfaceSubClass != info->bInterfaceSubClass)) { continue; } if ((id->match_flag_int_protocol) && (id->bInterfaceProtocol != info->bInterfaceProtocol)) { continue; } /* We found a match! */ return (id); } done: return (NULL); } /*------------------------------------------------------------------------* * usbd_lookup_id_by_uaa - factored out code * * Return values: * 0: Success * Else: Failure *------------------------------------------------------------------------*/ int usbd_lookup_id_by_uaa(const struct usb_device_id *id, usb_size_t sizeof_id, struct usb_attach_arg *uaa) { id = usbd_lookup_id_by_info(id, sizeof_id, &uaa->info); if (id) { /* copy driver info */ uaa->driver_info = id->driver_info; return (0); } return (ENXIO); } /*------------------------------------------------------------------------* * Export the USB device ID format we use to userspace tools. *------------------------------------------------------------------------*/ #if BYTE_ORDER == BIG_ENDIAN #define U16_XOR "8" #define U32_XOR "12" #define U64_XOR "56" #define U8_BITFIELD_XOR "7" #define U16_BITFIELD_XOR "15" #define U32_BITFIELD_XOR "31" #define U64_BITFIELD_XOR "63" #else #define U16_XOR "0" #define U32_XOR "0" #define U64_XOR "0" #define U8_BITFIELD_XOR "0" #define U16_BITFIELD_XOR "0" #define U32_BITFIELD_XOR "0" #define U64_BITFIELD_XOR "0" #endif #if USB_HAVE_COMPAT_LINUX #define MFL_SIZE "1" #else #define MFL_SIZE "0" #endif #ifdef KLD_MODULE static const char __section("bus_autoconf_format") __used usb_id_format[] = { /* Declare that three different sections use the same format */ "usb_host_id{256,:}" "usb_device_id{256,:}" "usb_dual_id{256,:}" /* List size of fields in the usb_device_id structure */ #if ULONG_MAX >= 0xFFFFFFFFUL "unused{0,8}" "unused{0,8}" "unused{0,8}" "unused{0,8}" #if ULONG_MAX >= 0xFFFFFFFFFFFFFFFFULL "unused{0,8}" "unused{0,8}" "unused{0,8}" "unused{0,8}" #endif #else #error "Please update code." #endif "idVendor[0]{" U16_XOR ",8}" "idVendor[1]{" U16_XOR ",8}" "idProduct[0]{" U16_XOR ",8}" "idProduct[1]{" U16_XOR ",8}" "bcdDevice_lo[0]{" U16_XOR ",8}" "bcdDevice_lo[1]{" U16_XOR ",8}" "bcdDevice_hi[0]{" U16_XOR ",8}" "bcdDevice_hi[1]{" U16_XOR ",8}" "bDeviceClass{0,8}" "bDeviceSubClass{0,8}" "bDeviceProtocol{0,8}" "bInterfaceClass{0,8}" "bInterfaceSubClass{0,8}" "bInterfaceProtocol{0,8}" "mf_vendor{" U8_BITFIELD_XOR ",1}" "mf_product{" U8_BITFIELD_XOR ",1}" "mf_dev_lo{" U8_BITFIELD_XOR ",1}" "mf_dev_hi{" U8_BITFIELD_XOR ",1}" "mf_dev_class{" U8_BITFIELD_XOR ",1}" "mf_dev_subclass{" U8_BITFIELD_XOR ",1}" "mf_dev_protocol{" U8_BITFIELD_XOR ",1}" "mf_int_class{" U8_BITFIELD_XOR ",1}" "mf_int_subclass{" U8_BITFIELD_XOR ",1}" "mf_int_protocol{" U8_BITFIELD_XOR ",1}" "unused{" U8_BITFIELD_XOR ",6}" "mfl_vendor{" U16_XOR "," MFL_SIZE "}" "mfl_product{" U16_XOR "," MFL_SIZE "}" "mfl_dev_lo{" U16_XOR "," MFL_SIZE "}" "mfl_dev_hi{" U16_XOR "," MFL_SIZE "}" "mfl_dev_class{" U16_XOR "," MFL_SIZE "}" "mfl_dev_subclass{" U16_XOR "," MFL_SIZE "}" "mfl_dev_protocol{" U16_XOR "," MFL_SIZE "}" "mfl_int_class{" U16_XOR "," MFL_SIZE "}" "mfl_int_subclass{" U16_XOR "," MFL_SIZE "}" "mfl_int_protocol{" U16_XOR "," MFL_SIZE "}" "unused{" U16_XOR "," MFL_SIZE "}" "unused{" U16_XOR "," MFL_SIZE "}" "unused{" U16_XOR "," MFL_SIZE "}" "unused{" U16_XOR "," MFL_SIZE "}" "unused{" U16_XOR "," MFL_SIZE "}" "unused{" U16_XOR "," MFL_SIZE "}" }; #endif