xref: /onnv-gate/usr/src/psm/promif/ieee1275/common/prom_2path.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 1991-1994,1998,2002 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
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 static int token2path(char *svc, uint_t token, char *buf, uint_t len);
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate int
prom_ihandle_to_path(ihandle_t instance,char * buf,uint_t len)35*0Sstevel@tonic-gate prom_ihandle_to_path(ihandle_t instance, char *buf, uint_t len)
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate 	return (token2path("instance-to-path", (uint_t)instance, buf, len));
38*0Sstevel@tonic-gate }
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate int
prom_phandle_to_path(phandle_t package,char * buf,uint_t len)41*0Sstevel@tonic-gate prom_phandle_to_path(phandle_t package, char *buf, uint_t len)
42*0Sstevel@tonic-gate {
43*0Sstevel@tonic-gate 	return (token2path("package-to-path", (uint_t)package, buf, len));
44*0Sstevel@tonic-gate }
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate static int
token2path(char * service,uint_t token,char * buf,uint_t len)47*0Sstevel@tonic-gate token2path(char *service, uint_t token, char *buf, uint_t len)
48*0Sstevel@tonic-gate {
49*0Sstevel@tonic-gate 	cell_t ci[7];
50*0Sstevel@tonic-gate 	int rv;
51*0Sstevel@tonic-gate #ifdef PROM_32BIT_ADDRS
52*0Sstevel@tonic-gate 	char *obuf = NULL;
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate 	if ((uintptr_t)buf > (uint32_t)-1) {
55*0Sstevel@tonic-gate 		obuf = buf;
56*0Sstevel@tonic-gate 		buf = promplat_alloc(len);
57*0Sstevel@tonic-gate 		if (buf == NULL) {
58*0Sstevel@tonic-gate 			return (-1);
59*0Sstevel@tonic-gate 		}
60*0Sstevel@tonic-gate 	}
61*0Sstevel@tonic-gate #endif
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	promif_preprom();
64*0Sstevel@tonic-gate 
65*0Sstevel@tonic-gate 	ci[0] = p1275_ptr2cell(service);	/* Service name */
66*0Sstevel@tonic-gate 	ci[1] = 3;				/* #argument cells */
67*0Sstevel@tonic-gate 	ci[2] = 1;				/* #return cells */
68*0Sstevel@tonic-gate 	ci[3] = p1275_uint2cell(token);		/* Arg1: ihandle/phandle */
69*0Sstevel@tonic-gate 	ci[4] = p1275_ptr2cell(buf);		/* Arg2: Result buffer */
70*0Sstevel@tonic-gate 	ci[5] = p1275_uint2cell(len);		/* Arg3: Buffer len */
71*0Sstevel@tonic-gate 	rv = p1275_cif_handler(&ci);
72*0Sstevel@tonic-gate 
73*0Sstevel@tonic-gate 	promif_postprom();
74*0Sstevel@tonic-gate 
75*0Sstevel@tonic-gate #ifdef PROM_32BIT_ADDRS
76*0Sstevel@tonic-gate 	if (obuf != NULL) {
77*0Sstevel@tonic-gate 		promplat_bcopy(buf, obuf, len);
78*0Sstevel@tonic-gate 		promplat_free(buf, len);
79*0Sstevel@tonic-gate 	}
80*0Sstevel@tonic-gate #endif
81*0Sstevel@tonic-gate 
82*0Sstevel@tonic-gate 	if (rv != 0)
83*0Sstevel@tonic-gate 		return (-1);
84*0Sstevel@tonic-gate 	return (p1275_cell2int(ci[6]));		/* Res1: Actual length */
85*0Sstevel@tonic-gate }
86