xref: /titanic_52/usr/src/psm/promif/ieee1275/sun4/prom_efcode.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate  * Copyright (c) 2000 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate  * All rights reserved.
25*7c478bd9Sstevel@tonic-gate  */
26*7c478bd9Sstevel@tonic-gate 
27*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
28*7c478bd9Sstevel@tonic-gate 
29*7c478bd9Sstevel@tonic-gate /*
30*7c478bd9Sstevel@tonic-gate  * Embedded Fcode Interpreter "get-fcode" client interfaces.
31*7c478bd9Sstevel@tonic-gate  */
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate #include <sys/promif.h>
34*7c478bd9Sstevel@tonic-gate #include <sys/promimpl.h>
35*7c478bd9Sstevel@tonic-gate 
36*7c478bd9Sstevel@tonic-gate /*
37*7c478bd9Sstevel@tonic-gate  * Get Fcode size, test if OBP supports this interface.
38*7c478bd9Sstevel@tonic-gate  */
39*7c478bd9Sstevel@tonic-gate int
40*7c478bd9Sstevel@tonic-gate prom_get_fcode_size(char *str)
41*7c478bd9Sstevel@tonic-gate {
42*7c478bd9Sstevel@tonic-gate 	cell_t ci[5];
43*7c478bd9Sstevel@tonic-gate 	int rv;
44*7c478bd9Sstevel@tonic-gate 
45*7c478bd9Sstevel@tonic-gate 	if (prom_test("SUNW,get-fcode-size") != 0) {
46*7c478bd9Sstevel@tonic-gate 		return (0);
47*7c478bd9Sstevel@tonic-gate 	}
48*7c478bd9Sstevel@tonic-gate 
49*7c478bd9Sstevel@tonic-gate 	ci[0] = p1275_ptr2cell("SUNW,get-fcode-size");
50*7c478bd9Sstevel@tonic-gate 	ci[1] = (cell_t)1;	/* 1 input arg: str */
51*7c478bd9Sstevel@tonic-gate 	ci[2] = (cell_t)1;	/* 1 output result: len or zero */
52*7c478bd9Sstevel@tonic-gate 	ci[3] = p1275_ptr2cell(str);
53*7c478bd9Sstevel@tonic-gate 	ci[4] = (cell_t)0;
54*7c478bd9Sstevel@tonic-gate 
55*7c478bd9Sstevel@tonic-gate 	promif_preprom();
56*7c478bd9Sstevel@tonic-gate 	rv = p1275_cif_handler(&ci);
57*7c478bd9Sstevel@tonic-gate 	promif_postprom();
58*7c478bd9Sstevel@tonic-gate 
59*7c478bd9Sstevel@tonic-gate 	if (rv == 0)
60*7c478bd9Sstevel@tonic-gate 		return (p1275_cell2int(ci[4]));
61*7c478bd9Sstevel@tonic-gate 	return (0);
62*7c478bd9Sstevel@tonic-gate }
63*7c478bd9Sstevel@tonic-gate 
64*7c478bd9Sstevel@tonic-gate /*
65*7c478bd9Sstevel@tonic-gate  * Get Fcode into supplied buffer.
66*7c478bd9Sstevel@tonic-gate  */
67*7c478bd9Sstevel@tonic-gate int
68*7c478bd9Sstevel@tonic-gate prom_get_fcode(char *str, char *buf)
69*7c478bd9Sstevel@tonic-gate {
70*7c478bd9Sstevel@tonic-gate 	cell_t ci[6];
71*7c478bd9Sstevel@tonic-gate 	int rv;
72*7c478bd9Sstevel@tonic-gate 
73*7c478bd9Sstevel@tonic-gate 	if (prom_test("SUNW,get-fcode") != 0) {
74*7c478bd9Sstevel@tonic-gate 		return (0);
75*7c478bd9Sstevel@tonic-gate 	}
76*7c478bd9Sstevel@tonic-gate 
77*7c478bd9Sstevel@tonic-gate 	ci[0] = p1275_ptr2cell("SUNW,get-fcode");
78*7c478bd9Sstevel@tonic-gate 	ci[1] = (cell_t)2;	/* 2 input args: str + buf */
79*7c478bd9Sstevel@tonic-gate 	ci[2] = (cell_t)1;	/* 1 output result: true or false */
80*7c478bd9Sstevel@tonic-gate 	ci[3] = p1275_ptr2cell(buf);	/* Arg#1: buffer to put fcode */
81*7c478bd9Sstevel@tonic-gate 	ci[4] = p1275_ptr2cell(str);	/* Arg#2: name of drop-in */
82*7c478bd9Sstevel@tonic-gate 	ci[5] = (cell_t)0;
83*7c478bd9Sstevel@tonic-gate 
84*7c478bd9Sstevel@tonic-gate 	promif_preprom();
85*7c478bd9Sstevel@tonic-gate 	rv = p1275_cif_handler(&ci);
86*7c478bd9Sstevel@tonic-gate 	promif_postprom();
87*7c478bd9Sstevel@tonic-gate 
88*7c478bd9Sstevel@tonic-gate 	if (rv == 0)
89*7c478bd9Sstevel@tonic-gate 		return (p1275_cell2int(ci[5]));
90*7c478bd9Sstevel@tonic-gate 	return (0);
91*7c478bd9Sstevel@tonic-gate }
92