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) 1991-1994, by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 #include <sys/promif.h>
30 #include <sys/promimpl.h>
31
32 /*
33 * This prom entry point cannot be used once the kernel is up
34 * and running (after stop_mon_clock is called) since the kernel
35 * takes over level 14 interrupt handling which the PROM depends
36 * on to update the time.
37 */
38
39 u_int
prom_gettime(void)40 prom_gettime(void)
41 {
42 cell_t ci[4];
43
44 ci[0] = p1275_ptr2cell("milliseconds"); /* Service name */
45 ci[1] = (cell_t)0; /* #argument cells */
46 ci[2] = (cell_t)1; /* #return cells */
47
48 promif_preprom();
49 (void) p1275_cif_handler(&ci);
50 promif_postprom();
51
52 return (p1275_cell2uint(ci[3])); /* Res0: time in ms. */
53 }
54