freebsd-nq/sys/sun4v/cddl/mdesc/mdesc_getpropval.c

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2006-10-05 06:14:28 +00:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
* $FreeBSD$
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#ifdef _KERNEL
#include <sys/systm.h>
#else
#include <strings.h>
#endif
#include <machine/cddl/mdesc.h>
#include <machine/cddl/mdesc_impl.h>
int
md_get_prop_val(md_t *ptr, mde_cookie_t node, char *namep, uint64_t *valp)
{
mde_str_cookie_t prop_name;
md_impl_t *mdp;
mde_cookie_t elem;
mdp = (md_impl_t *)ptr;
if (node == MDE_INVAL_ELEM_COOKIE) {
return (-1);
}
prop_name = md_find_name(ptr, namep);
if (prop_name == MDE_INVAL_STR_COOKIE) {
return (-1);
}
elem = md_find_node_prop(mdp, node, prop_name, MDET_PROP_VAL);
if (elem != MDE_INVAL_ELEM_COOKIE) {
md_element_t *mdep;
mdep = &(mdp->mdep[(int)elem]);
*valp = MDE_PROP_VALUE(mdep);
return (0);
}
return (-1); /* no such property name */
}