xref: /onnv-gate/usr/src/uts/common/sys/rtc.h (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 1999 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 /*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
28*0Sstevel@tonic-gate 
29*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
30*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifndef _SYS_RTC_H
33*0Sstevel@tonic-gate #define	_SYS_RTC_H
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate #ifdef	__cplusplus
38*0Sstevel@tonic-gate extern "C" {
39*0Sstevel@tonic-gate #endif
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate /*
43*0Sstevel@tonic-gate  * Definitions for Real Time Clock driver (Motorola MC146818 chip).
44*0Sstevel@tonic-gate  */
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate /*
47*0Sstevel@tonic-gate  * MP NOTE:
48*0Sstevel@tonic-gate  * cmos_lck must be locked when addressing CMOS via
49*0Sstevel@tonic-gate  * RTC_ADDR and RTC_DATA i/o addresses
50*0Sstevel@tonic-gate  */
51*0Sstevel@tonic-gate #define	RTC_ADDR	0x70	/* I/O port address of for register select */
52*0Sstevel@tonic-gate #define	RTC_DATA	0x71	/* I/O port address for data read/write */
53*0Sstevel@tonic-gate 
54*0Sstevel@tonic-gate /*
55*0Sstevel@tonic-gate  * Register A definitions
56*0Sstevel@tonic-gate  */
57*0Sstevel@tonic-gate #define	RTC_A		0x0a	/* register A address */
58*0Sstevel@tonic-gate #define	RTC_UIP		0x80	/* Update in progress bit */
59*0Sstevel@tonic-gate #define	RTC_DIV0	0x00	/* Time base of 4.194304 MHz */
60*0Sstevel@tonic-gate #define	RTC_DIV1	0x10	/* Time base of 1.048576 MHz */
61*0Sstevel@tonic-gate #define	RTC_DIV2	0x20	/* Time base of 32.768 KHz */
62*0Sstevel@tonic-gate #define	RTC_RATE6	0x06	/* interrupt rate of 976.562 */
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate /*
65*0Sstevel@tonic-gate  * Register B definitions
66*0Sstevel@tonic-gate  */
67*0Sstevel@tonic-gate #define	RTC_B		0x0b	/* register B address */
68*0Sstevel@tonic-gate #define	RTC_SET		0x80	/* stop updates for time set */
69*0Sstevel@tonic-gate #define	RTC_PIE		0x40	/* Periodic interrupt enable */
70*0Sstevel@tonic-gate #define	RTC_AIE		0x20	/* Alarm interrupt enable */
71*0Sstevel@tonic-gate #define	RTC_UIE		0x10	/* Update ended interrupt enable */
72*0Sstevel@tonic-gate #define	RTC_SQWE	0x08	/* Square wave enable */
73*0Sstevel@tonic-gate #define	RTC_DM		0x04	/* Date mode, 1 = binary, 0 = BCD */
74*0Sstevel@tonic-gate #define	RTC_HM		0x02	/* hour mode, 1 = 24 hour, 0 = 12 hour */
75*0Sstevel@tonic-gate #define	RTC_DSE		0x01	/* Daylight savings enable */
76*0Sstevel@tonic-gate 
77*0Sstevel@tonic-gate /*
78*0Sstevel@tonic-gate  * Register C definitions
79*0Sstevel@tonic-gate  */
80*0Sstevel@tonic-gate #define	RTC_C		0x0c	/* register C address */
81*0Sstevel@tonic-gate #define	RTC_IRQF	0x80	/* IRQ flag */
82*0Sstevel@tonic-gate #define	RTC_PF		0x40	/* PF flag bit */
83*0Sstevel@tonic-gate #define	RTC_AF		0x20	/* AF flag bit */
84*0Sstevel@tonic-gate #define	RTC_UF		0x10	/* UF flag bit */
85*0Sstevel@tonic-gate 
86*0Sstevel@tonic-gate /*
87*0Sstevel@tonic-gate  * Register D definitions
88*0Sstevel@tonic-gate  */
89*0Sstevel@tonic-gate #define	RTC_D		0x0d	/* register D address */
90*0Sstevel@tonic-gate #define	RTC_VRT		0x80	/* Valid RAM and time bit */
91*0Sstevel@tonic-gate 
92*0Sstevel@tonic-gate #define	RTC_NREG	0x0e	/* number of RTC registers */
93*0Sstevel@tonic-gate #define	RTC_NREGP	0x0a	/* number of RTC registers to set time */
94*0Sstevel@tonic-gate #define	RTC_CENTURY	0x32	/* not included in RTC_NREG(P) */
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate /*
97*0Sstevel@tonic-gate  * Ioctl definitions for accessing RTC.
98*0Sstevel@tonic-gate  */
99*0Sstevel@tonic-gate #define	RTCIOC	('R' << 8)
100*0Sstevel@tonic-gate 
101*0Sstevel@tonic-gate #define	RTCRTIME	(RTCIOC | 0x01)		/* Read time from RTC */
102*0Sstevel@tonic-gate #define	RTCSTIME	(RTCIOC | 0x02)		/* Set time into RTC */
103*0Sstevel@tonic-gate 
104*0Sstevel@tonic-gate struct	rtc_t {			/* registers 0x0 to 0xD, 0x32 */
105*0Sstevel@tonic-gate 	unsigned char	rtc_sec;
106*0Sstevel@tonic-gate 	unsigned char	rtc_asec;
107*0Sstevel@tonic-gate 	unsigned char	rtc_min;
108*0Sstevel@tonic-gate 	unsigned char	rtc_amin;
109*0Sstevel@tonic-gate 	unsigned char	rtc_hr;
110*0Sstevel@tonic-gate 	unsigned char	rtc_ahr;
111*0Sstevel@tonic-gate 	unsigned char	rtc_dow;
112*0Sstevel@tonic-gate 	unsigned char	rtc_dom;
113*0Sstevel@tonic-gate 	unsigned char	rtc_mon;
114*0Sstevel@tonic-gate 	unsigned char	rtc_yr;
115*0Sstevel@tonic-gate 	unsigned char	rtc_statusa;
116*0Sstevel@tonic-gate 	unsigned char	rtc_statusb;
117*0Sstevel@tonic-gate 	unsigned char	rtc_statusc;
118*0Sstevel@tonic-gate 	unsigned char	rtc_statusd;
119*0Sstevel@tonic-gate 	unsigned char	rtc_century; /* register 0x32 */
120*0Sstevel@tonic-gate };
121*0Sstevel@tonic-gate 
122*0Sstevel@tonic-gate #ifdef	__cplusplus
123*0Sstevel@tonic-gate }
124*0Sstevel@tonic-gate #endif
125*0Sstevel@tonic-gate 
126*0Sstevel@tonic-gate #endif	/* _SYS_RTC_H */
127