xref: /illumos-gate/usr/src/psm/promif/ieee1275/common/prom_handler.c (revision 8b80e8cb6855118d46f605e91b5ed4ce83417395)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1994 by Sun Microsystems, Inc.
24  * All Rights Reserved.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31 
32 void *
33 prom_set_callback(void *handler)
34 {
35 	cell_t ci[5];
36 
37 	ci[0] = p1275_ptr2cell("set-callback");	/* Service name */
38 	ci[1] = (cell_t)1;			/* #argument cells */
39 	ci[2] = (cell_t)1;			/* #return cells */
40 	ci[3] = p1275_ptr2cell(handler);	/* Arg1: New handler */
41 	ci[4] = (cell_t)-1;			/* Res1: Prime result */
42 
43 	promif_preprom();
44 	(void) p1275_cif_handler(&ci);
45 	promif_postprom();
46 
47 	return (p1275_cell2ptr(ci[4]));		/* Res1: Old handler */
48 }
49 
50 void
51 prom_set_symbol_lookup(void *sym2val, void *val2sym)
52 {
53 	cell_t ci[5];
54 
55 	ci[0] = p1275_ptr2cell("set-symbol-lookup");	/* Service name */
56 	ci[1] = (cell_t)2;			/* #argument cells */
57 	ci[2] = (cell_t)0;			/* #return cells */
58 	ci[3] = p1275_ptr2cell(sym2val);	/* Arg1: s2v handler */
59 	ci[4] = p1275_ptr2cell(val2sym);	/* Arg1: v2s handler */
60 
61 	promif_preprom();
62 	(void) p1275_cif_handler(&ci);
63 	promif_postprom();
64 }
65