xref: /netbsd-src/sys/arch/luna68k/stand/boot/getsecs.c (revision 3dd15d69a9fe59a5a1616670bdd96da1f4872008)
1 /*	$NetBSD: getsecs.c,v 1.3 2019/06/30 05:04:49 tsutsui Exp $	*/
2 
3 /*-
4  * Copyright (c) 2004 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by UCHIYAMA Yasushi.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <machine/cpu.h>
33 #include <machine/board.h>
34 
35 #include <lib/libkern/libkern.h>
36 #include <lib/libsa/stand.h>
37 #include <lib/libsa/net.h>
38 
39 #include <dev/clock_subr.h>
40 
41 #include <luna68k/dev/timekeeper.h>
42 #include <luna68k/stand/boot/samachdep.h>
43 
44 satime_t
getsecs(void)45 getsecs(void)
46 {
47 	volatile uint8_t *mclock;
48 	u_int t;
49 
50 	mclock = (volatile uint8_t *)OBIO_CLOCK_BASE;
51 
52 	if (machtype == LUNA_I) {
53 		mclock += 2040;
54 		mclock[MK_CSR] |= MK_CSR_READ;
55 		t =  bcdtobin(mclock[MK_SEC]);
56 		t += bcdtobin(mclock[MK_MIN]) * 60;
57 		t += bcdtobin(mclock[MK_HOUR]) * 60 * 60;
58 		mclock[MK_CSR] &= ~MK_CSR_READ;
59 	} else {
60 		while (mclock[MC_REGA] & MC_REGA_UIP)
61 			continue;
62 		t =  mclock[MC_SEC];
63 		t += mclock[MC_MIN] * 60;
64 		t += mclock[MC_HOUR] * 60 * 60;
65 	}
66 
67 	return (satime_t)t;
68 }
69