xref: /openbsd/sys/arch/luna88k/dev/timekeeper.h (revision 8529ddd3)
1 /* $OpenBSD: timekeeper.h,v 1.3 2013/08/10 22:27:14 aoyama Exp $ */
2 /* $NetBSD: timekeeper.h,v 1.1 2000/01/05 08:48:56 nisimura Exp $ */
3 
4 /*-
5  * Copyright (c) 2000 The NetBSD Foundation, Inc.
6  * All rights reserved.
7  *
8  * This code is derived from software contributed to The NetBSD Foundation
9  * by Tohru Nishimura.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /*
34  * Mostek MK48T02 for LUNA-88K
35  */
36 #define	MK_CSR		0	/* control register */
37 #define	MK_SEC		1	/* seconds (0..59; BCD) */
38 #define	MK_MIN		2	/* minutes (0..59; BCD) */
39 #define	MK_HOUR		3	/* hour (0..23; BCD) */
40 #define	MK_DOW		4	/* weekday (1..7) */
41 #define	MK_DOM		5	/* day in month (1..31; BCD) */
42 #define	MK_MONTH	6	/* month (1..12; BCD) */
43 #define	MK_YEAR		7	/* year (0..99; BCD) */
44 /* bits in cl_csr */
45 #define MK_CSR_WRITE	0x80	/* want to write */
46 #define MK_CSR_READ	0x40	/* want to read (freeze clock) */
47 /* NVRAM space is mapped with 4-bytes stride */
48 #define MK_NVRAM_SPACE	(4 * (2048 - 8))
49 
50 /*
51  * Dallas Semiconductor DS1397 for LUNA-88K2
52  */
53 #define DS_SEC          0x0     /* Time of year: seconds (0-59) */
54 #define DS_MIN          0x2     /* Time of year: minutes (0-59) */
55 #define DS_HOUR         0x4     /* Time of year: hour (see above) */
56 #define DS_DOW          0x6     /* Time of year: day of week (1-7) */
57 #define DS_DOM          0x7     /* Time of year: day of month (1-31) */
58 #define DS_MONTH        0x8     /* Time of year: month (1-12) */
59 #define DS_YEAR         0x9     /* Time of year: year in century (0-99) */
60 
61 #define DS_REGA         0xa     /* Control register A */
62 #define  DS_REGA_RSMASK 0x0f    /* Interrupt rate select mask (see below) */
63 #define  DS_REGA_DVMASK 0x70    /* Divisor select mask (see below) */
64 #define  DS_REGA_UIP    0x80    /* Update in progress; read only. */
65 
66 #define DS_REGB         0xb     /* Control register B */
67 #define  DS_REGB_DSE    0x01    /* Daylight Savings Enable */
68 #define  DS_REGB_24HR   0x02    /* 24-hour mode (AM/PM mode when clear) */
69 #define  DS_REGB_BINARY 0x04    /* Binary mode (BCD mode when clear) */
70 #define  DS_REGB_SQWE   0x08    /* Square Wave Enable */
71 #define  DS_REGB_UIE    0x10    /* Update End interrupt enable */
72 #define  DS_REGB_AIE    0x20    /* Alarm interrupt enable */
73 #define  DS_REGB_PIE    0x40    /* Periodic interrupt enable */
74 #define  DS_REGB_SET    0x80    /* Allow time to be set; stops updates */
75 
76 #define DS_REGC         0xc     /* Control register C */
77 /*       DS_REGC_UNUSED 0x0f    UNUSED */
78 #define  DS_REGC_UF     0x10    /* Update End interrupt flag */
79 #define  DS_REGC_AF     0x20    /* Alarm interrupt flag */
80 #define  DS_REGC_PF     0x40    /* Periodic interrupt flag */
81 #define  DS_REGC_IRQF   0x80    /* Interrupt request pending flag */
82 
83 #define DS_REGD         0xd     /* Control register D */
84 /*       DS_REGD_UNUSED 0x7f    UNUSED */
85 #define  DS_REGD_VRT    0x80    /* Valid RAM and Time bit */
86 
87 #define DS_NREGS        0xe     /* 14 registers; CMOS follows */
88 #define DS_NTODREGS     0xa     /* 10 of those regs are for TOD and alarm */
89