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) 2000 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * Embedded Fcode Interpreter "get-fcode" client interfaces.
31 */
32
33#include <sys/promif.h>
34#include <sys/promimpl.h>
35
36/*
37 * Get Fcode size, test if OBP supports this interface.
38 */
39int
40prom_get_fcode_size(char *str)
41{
42	cell_t ci[5];
43	int rv;
44
45	if (prom_test("SUNW,get-fcode-size") != 0) {
46		return (0);
47	}
48
49	ci[0] = p1275_ptr2cell("SUNW,get-fcode-size");
50	ci[1] = (cell_t)1;	/* 1 input arg: str */
51	ci[2] = (cell_t)1;	/* 1 output result: len or zero */
52	ci[3] = p1275_ptr2cell(str);
53	ci[4] = (cell_t)0;
54
55	promif_preprom();
56	rv = p1275_cif_handler(&ci);
57	promif_postprom();
58
59	if (rv == 0)
60		return (p1275_cell2int(ci[4]));
61	return (0);
62}
63
64/*
65 * Get Fcode into supplied buffer.
66 */
67int
68prom_get_fcode(char *str, char *buf)
69{
70	cell_t ci[6];
71	int rv;
72
73	if (prom_test("SUNW,get-fcode") != 0) {
74		return (0);
75	}
76
77	ci[0] = p1275_ptr2cell("SUNW,get-fcode");
78	ci[1] = (cell_t)2;	/* 2 input args: str + buf */
79	ci[2] = (cell_t)1;	/* 1 output result: true or false */
80	ci[3] = p1275_ptr2cell(buf);	/* Arg#1: buffer to put fcode */
81	ci[4] = p1275_ptr2cell(str);	/* Arg#2: name of drop-in */
82	ci[5] = (cell_t)0;
83
84	promif_preprom();
85	rv = p1275_cif_handler(&ci);
86	promif_postprom();
87
88	if (rv == 0)
89		return (p1275_cell2int(ci[5]));
90	return (0);
91}
92