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 */
39 int
prom_get_fcode_size(char * str)40 prom_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 */
67 int
prom_get_fcode(char * str,char * buf)68 prom_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