/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/promif.h>
#include <sys/promimpl.h>
/*
* This function is installed for both pre and post output during cpr to keep
* the early stages of the resuming kernel from accessing outside the nucleus
* mapping; we assert that the console is all powered up before it is installed
*/
static void
null_outfunc(void)
{
}
static promif_owrap_t nullwrapper =
{
null_outfunc,
null_outfunc
};
static promif_owrap_t *wrapper = &nullwrapper;
static promif_owrap_t pmwrapper;
static promif_owrap_t *saved_wrapper;
promif_owrap_t
*promif_preout(void)
{
promif_owrap_t *ow = wrapper;
(ow->preout)();
return (ow);
}
void
promif_postout(promif_owrap_t *ow)
{
(ow->postout)();
}
void
prom_set_outfuncs(void (*pref)(void), void (*postf)(void))
{
pmwrapper.preout = pref;
pmwrapper.postout = postf;
wrapper = &pmwrapper;
}
void
prom_suspend_prepost(void)
{
saved_wrapper = wrapper;
wrapper = &nullwrapper;
}
void
prom_resume_prepost(void)
{
wrapper = saved_wrapper;
saved_wrapper = NULL;
}