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gerrit.nordix.org / codeaurora / busybox / 5dcb43a5d1ea07e6b58770741882a4b0b82bb29d / . / include / rtc_.h
blob: 74bb695a08eee20afce726c47f1fa61c7e9fb1ba [file] [log] [blame]
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]1/*
2 * Common defines/structures/etc... for applets that need to work with the RTC.
3 *
4 * Licensed under the GPL-2 or later.
5 */
6
Denis Vlasenkoee5dce32008-09-26 10:35:55 +0000[diff] [blame]7#ifndef BB_RTC_H
Denis Vlasenkof81e8db2009-04-09 12:35:13 +0000[diff] [blame]8#define BB_RTC_H 1
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]9
10#include "libbb.h"
11
Denis Vlasenkof81e8db2009-04-09 12:35:13 +0000[diff] [blame]12PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
Denis Vlasenko98636eb2008-05-09 17:59:34 +0000[diff] [blame]13
Denis Vlasenkodefc1ea2008-06-27 02:52:20 +0000[diff] [blame]14extern int rtc_adjtime_is_utc(void) FAST_FUNC;
15extern int rtc_xopen(const char **default_rtc, int flags) FAST_FUNC;
16extern time_t rtc_read_time(int fd, int utc) FAST_FUNC;
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]17
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]18/*
19 * Everything below this point has been copied from linux/rtc.h
20 * to eliminate the kernel header dependency
21 */
22
23struct linux_rtc_time {
24 int tm_sec;
25 int tm_min;
26 int tm_hour;
27 int tm_mday;
28 int tm_mon;
29 int tm_year;
30 int tm_wday;
31 int tm_yday;
32 int tm_isdst;
33};
34
35struct linux_rtc_wkalrm {
36 unsigned char enabled; /* 0 = alarm disabled, 1 = alarm enabled */
37 unsigned char pending; /* 0 = alarm not pending, 1 = alarm pending */
38 struct linux_rtc_time time; /* time the alarm is set to */
39};
40
41/*
42 * ioctl calls that are permitted to the /dev/rtc interface, if
43 * any of the RTC drivers are enabled.
44 */
Denis Vlasenko551ffdc2009-04-01 19:48:05 +0000[diff] [blame]45#define RTC_AIE_ON _IO('p', 0x01) /* Alarm int. enable on */
46#define RTC_AIE_OFF _IO('p', 0x02) /* ... off */
47#define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */
48#define RTC_UIE_OFF _IO('p', 0x04) /* ... off */
49#define RTC_PIE_ON _IO('p', 0x05) /* Periodic int. enable on */
50#define RTC_PIE_OFF _IO('p', 0x06) /* ... off */
51#define RTC_WIE_ON _IO('p', 0x0f) /* Watchdog int. enable on */
52#define RTC_WIE_OFF _IO('p', 0x10) /* ... off */
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]53
Denis Vlasenko551ffdc2009-04-01 19:48:05 +0000[diff] [blame]54#define RTC_ALM_SET _IOW('p', 0x07, struct linux_rtc_time) /* Set alarm time */
55#define RTC_ALM_READ _IOR('p', 0x08, struct linux_rtc_time) /* Read alarm time */
56#define RTC_RD_TIME _IOR('p', 0x09, struct linux_rtc_time) /* Read RTC time */
57#define RTC_SET_TIME _IOW('p', 0x0a, struct linux_rtc_time) /* Set RTC time */
58#define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long) /* Read IRQ rate */
59#define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long) /* Set IRQ rate */
60#define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long) /* Read epoch */
61#define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long) /* Set epoch */
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]62
Denis Vlasenko551ffdc2009-04-01 19:48:05 +0000[diff] [blame]63#define RTC_WKALM_SET _IOW('p', 0x0f, struct linux_rtc_wkalrm)/* Set wakeup alarm*/
64#define RTC_WKALM_RD _IOR('p', 0x10, struct linux_rtc_wkalrm)/* Get wakeup alarm*/
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]65
66/* interrupt flags */
67#define RTC_IRQF 0x80 /* any of the following is active */
68#define RTC_PF 0x40
69#define RTC_AF 0x20
70#define RTC_UF 0x10
71
Denis Vlasenkof81e8db2009-04-09 12:35:13 +0000[diff] [blame]72POP_SAVED_FUNCTION_VISIBILITY
Denis Vlasenko98636eb2008-05-09 17:59:34 +0000[diff] [blame]73
Mike Frysinger6b160e42008-02-15 02:27:19 +0000[diff] [blame]74#endif