| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/asmc/@/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/amd64/compile/hs32/modules/usr/src/sys/modules/asmc/@/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