xref: /onnv-gate/usr/src/psm/promif/ieee1275/common/prom_stdout.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright (c) 1991-1994, by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate  * All rights reserved.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate #include <sys/promif.h>
30*0Sstevel@tonic-gate #include <sys/promimpl.h>
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate /*
33*0Sstevel@tonic-gate  * Return ihandle of stdout
34*0Sstevel@tonic-gate  */
35*0Sstevel@tonic-gate ihandle_t
36*0Sstevel@tonic-gate prom_stdout_ihandle(void)
37*0Sstevel@tonic-gate {
38*0Sstevel@tonic-gate 	static ihandle_t istdout;
39*0Sstevel@tonic-gate 	static char *name = "stdout";
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate 	if (istdout)
42*0Sstevel@tonic-gate 		return (istdout);
43*0Sstevel@tonic-gate 
44*0Sstevel@tonic-gate 	if (prom_getproplen(prom_chosennode(), name) !=
45*0Sstevel@tonic-gate 	    sizeof (ihandle_t))  {
46*0Sstevel@tonic-gate 		return (istdout = (ihandle_t)-1);
47*0Sstevel@tonic-gate 	}
48*0Sstevel@tonic-gate 	(void) prom_getprop(prom_chosennode(), name,
49*0Sstevel@tonic-gate 	    (caddr_t)(&istdout));
50*0Sstevel@tonic-gate 	istdout = prom_decode_int(istdout);
51*0Sstevel@tonic-gate 	return (istdout);
52*0Sstevel@tonic-gate 
53*0Sstevel@tonic-gate }
54*0Sstevel@tonic-gate 
55*0Sstevel@tonic-gate /*
56*0Sstevel@tonic-gate  * Return phandle of stdout
57*0Sstevel@tonic-gate  */
58*0Sstevel@tonic-gate dnode_t
59*0Sstevel@tonic-gate prom_stdout_node(void)
60*0Sstevel@tonic-gate {
61*0Sstevel@tonic-gate 	static phandle_t pstdout;
62*0Sstevel@tonic-gate 	ihandle_t istdout;
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate 	if (pstdout)
65*0Sstevel@tonic-gate 		return (pstdout);
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate 	if ((istdout = prom_stdout_ihandle()) == (ihandle_t)-1)
68*0Sstevel@tonic-gate 		return (pstdout = (dnode_t)OBP_BADNODE);
69*0Sstevel@tonic-gate 
70*0Sstevel@tonic-gate 	return (pstdout = prom_getphandle(istdout));
71*0Sstevel@tonic-gate }
72