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 7#ifndef BB_RTC_H 8#define BB_RTC_H 1 9 10#include "libbb.h" 11 12PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN 13 14int rtc_adjtime_is_utc(void) FAST_FUNC; 15int rtc_xopen(const char **default_rtc, int flags) FAST_FUNC; 16void rtc_read_tm(struct tm *ptm, int fd) FAST_FUNC; 17time_t rtc_tm2time(struct tm *ptm, int utc) FAST_FUNC; 18 19 20/* 21 * Everything below this point has been copied from linux/rtc.h 22 * to eliminate the kernel header dependency 23 */ 24 25struct linux_rtc_time { 26 int tm_sec; 27 int tm_min; 28 int tm_hour; 29 int tm_mday; 30 int tm_mon; 31 int tm_year; 32 int tm_wday; 33 int tm_yday; 34 int tm_isdst; 35}; 36 37struct linux_rtc_wkalrm { 38 unsigned char enabled; /* 0 = alarm disabled, 1 = alarm enabled */ 39 unsigned char pending; /* 0 = alarm not pending, 1 = alarm pending */ 40 struct linux_rtc_time time; /* time the alarm is set to */ 41}; 42 43/* 44 * ioctl calls that are permitted to the /dev/rtc interface, if 45 * any of the RTC drivers are enabled. 46 */ 47#define RTC_AIE_ON _IO('p', 0x01) /* Alarm int. enable on */ 48#define RTC_AIE_OFF _IO('p', 0x02) /* ... off */ 49#define RTC_UIE_ON _IO('p', 0x03) /* Update int. enable on */ 50#define RTC_UIE_OFF _IO('p', 0x04) /* ... off */ 51#define RTC_PIE_ON _IO('p', 0x05) /* Periodic int. enable on */ 52#define RTC_PIE_OFF _IO('p', 0x06) /* ... off */ 53#define RTC_WIE_ON _IO('p', 0x0f) /* Watchdog int. enable on */ 54#define RTC_WIE_OFF _IO('p', 0x10) /* ... off */ 55 56#define RTC_ALM_SET _IOW('p', 0x07, struct linux_rtc_time) /* Set alarm time */ 57#define RTC_ALM_READ _IOR('p', 0x08, struct linux_rtc_time) /* Read alarm time */ 58#define RTC_RD_TIME _IOR('p', 0x09, struct linux_rtc_time) /* Read RTC time */ 59#define RTC_SET_TIME _IOW('p', 0x0a, struct linux_rtc_time) /* Set RTC time */ 60#define RTC_IRQP_READ _IOR('p', 0x0b, unsigned long) /* Read IRQ rate */ 61#define RTC_IRQP_SET _IOW('p', 0x0c, unsigned long) /* Set IRQ rate */ 62#define RTC_EPOCH_READ _IOR('p', 0x0d, unsigned long) /* Read epoch */ 63#define RTC_EPOCH_SET _IOW('p', 0x0e, unsigned long) /* Set epoch */ 64 65#define RTC_WKALM_SET _IOW('p', 0x0f, struct linux_rtc_wkalrm)/* Set wakeup alarm*/ 66#define RTC_WKALM_RD _IOR('p', 0x10, struct linux_rtc_wkalrm)/* Get wakeup alarm*/ 67 68/* interrupt flags */ 69#define RTC_IRQF 0x80 /* any of the following is active */ 70#define RTC_PF 0x40 71#define RTC_AF 0x20 72#define RTC_UF 0x10 73 74POP_SAVED_FUNCTION_VISIBILITY 75 76#endif 77