xref: /titanic_41/usr/src/cmd/picl/plugins/sun4v/pri/init.c (revision f4da9be01648d6afa604495d9b9956dddeb92a8c)
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/types.h>
30 #include <errno.h>
31 #include <malloc.h>
32 #include <mdesc.h>
33 #include <pri.h>
34 #include "priplugin.h"
35 
36 static void pri_free(void *bufp, size_t size);
37 uint64_t *md_bufp;
38 
39 md_t *
40 pri_devinit(void)
41 {
42 	md_t *mdp;
43 	uint64_t tok;
44 
45 	md_bufp = NULL;
46 	tok = 0;
47 
48 	if (pri_init() != -1) {
49 		if (pri_get(PRI_GET, &tok, &md_bufp, malloc, pri_free) ==
50 		    (ssize_t)-1) {
51 			pri_debug(LOG_NOTICE, "pri_devinit: can'r read from "
52 			    "the PRI: %d\n", errno);
53 		}
54 		if (md_bufp == NULL) {
55 			pri_debug(LOG_NOTICE, "pri_devinit: pri_get returned"
56 			    "NULL buffer!\n");
57 		}
58 	} else {
59 		pri_debug(LOG_NOTICE, "pri_devinit: pri_init failed!\n");
60 	}
61 	pri_fini();
62 
63 	pri_debug(LOG_NOTICE, "pri_devinit: done reading PRI\n");
64 
65 	/*
66 	 * The PRI and the MD use the same data format so they can be
67 	 * parsed by the same functions.
68 	 */
69 	if (md_bufp) {
70 		mdp = md_init_intern(md_bufp, malloc, pri_free);
71 		if (mdp == NULL) {
72 			pri_debug(LOG_NOTICE, "pri_devinit: md_init_intern "
73 			"failed\n");
74 			free(md_bufp);
75 			md_bufp = NULL;
76 		} else {
77 			pri_debug(LOG_NOTICE, "pri_devinit: mdi_init_intern "
78 			    "completed successfully\n");
79 		}
80 	} else
81 		mdp = NULL;
82 
83 	pri_debug(LOG_NOTICE, "pri_devinit: returning\n");
84 
85 	return (mdp);
86 }
87 
88 /*ARGSUSED*/
89 static void
90 pri_free(void *bufp, size_t size)
91 {
92 	if (bufp)
93 		free(bufp);
94 }
95 
96 void
97 pri_devfini(md_t *mdp)
98 {
99 	if (mdp)
100 		(void) md_fini(mdp);
101 
102 	if (md_bufp)
103 		free(md_bufp);
104 	md_bufp = NULL;
105 }
106