source: mainline/uspace/drv/time/cmos-rtc/cmos-regs.h@ e5fbe06

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since e5fbe06 was a8a0d43, checked in by Maurizio Lombardi <m.lombardi85@…>, 13 years ago

rtc: inhibit updates, write the cmos registers and then restore normal working conditions

  • Property mode set to 100644
File size: 2.1 KB
Line 
1/*
2 * Copyright (c) 2012 Maurizio Lombardi
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _CMOS_RTC_H_
30#define _CMOS_RTC_H_
31
32#define RTC_SEC 0x00
33#define RTC_MIN 0x02
34#define RTC_HOUR 0x04
35#define RTC_DAY 0x07
36#define RTC_MON 0x08
37#define RTC_YEAR 0x09
38
39#define RTC_STATUS_B 0x0B
40#define RTC_MASK_24H 0x02 /* 24h mode */
41#define RTC_MASK_BCD 0x04 /* BCD mode */
42#define RTC_MASK_INH 0x80 /* Inhibit updates */
43
44#define RTC_STATUS_D 0x0D
45#define RTC_BATTERY_OK 0x80 /* Battery status */
46
47#define RTC_STATUS_A 0x0A
48#define RTC_MASK_UPDATE 0x80 /* Update in progress */
49#define RTC_MASK_CLK_STOP 0x70 /* Stop the clock */
50
51#endif
52
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