1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#pragma ident "%Z%%M% %I% %E% SMI" 28 29#include <sys/promif.h> 30#include <sys/promimpl.h> 31 32/* 33 * This function is installed for both pre and post output during cpr to keep 34 * the early stages of the resuming kernel from accessing outside the nucleus 35 * mapping; we assert that the console is all powered up before it is installed 36 */ 37static void 38null_outfunc(void) 39{ 40} 41 42static promif_owrap_t nullwrapper = 43{ 44 null_outfunc, 45 null_outfunc 46}; 47 48static promif_owrap_t *wrapper = &nullwrapper; 49static promif_owrap_t pmwrapper; 50static promif_owrap_t *saved_wrapper; 51 52promif_owrap_t 53*promif_preout(void) 54{ 55 promif_owrap_t *ow = wrapper; 56 (ow->preout)(); 57 return (ow); 58} 59 60void 61promif_postout(promif_owrap_t *ow) 62{ 63 (ow->postout)(); 64} 65 66void 67prom_set_outfuncs(void (*pref)(void), void (*postf)(void)) 68{ 69 pmwrapper.preout = pref; 70 pmwrapper.postout = postf; 71 wrapper = &pmwrapper; 72} 73 74void 75prom_suspend_prepost(void) 76{ 77 saved_wrapper = wrapper; 78 wrapper = &nullwrapper; 79} 80 81void 82prom_resume_prepost(void) 83{ 84 wrapper = saved_wrapper; 85 saved_wrapper = NULL; 86} 87