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#ifndef _RTC_H_
#define _RTC_H_
#include <stdlib.h>
#include <sunxi_hal_common.h>
/*
* The struct used to pass data via the following ioctl. Similar to the
* struct tm in <time.h>, but it needs to be here so that the kernel
* source is self contained, allowing cross-compiles, etc. etc.
*/
struct rtc_time
{
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday;
int tm_yday;
int tm_isdst;
};
typedef s64 time64_t;
/*
* This data structure is inspired by the EFI (v0.92) wakeup
* alarm API.
*/
struct rtc_wkalrm
{
unsigned char enabled; /* 0 = alarm disabled, 1 = alarm enabled */
unsigned char pending; /* 0 = alarm not pending, 1 = alarm pending */
struct rtc_time time; /* time the alarm is set to */
};
typedef enum
{
RTC_IRQ_ERROR = -3,
RTC_CLK_ERROR = -2,
RTC_ERROR = -1,
RTC_OK = 0,
}hal_rtc_status_t;
int rtc_month_days(unsigned int month, unsigned int year);
int rtc_year_days(unsigned int day, unsigned int month, unsigned int year);
int rtc_valid_tm(struct rtc_time *tm);
time64_t rtc_tm_to_time64(struct rtc_time *tm);
void rtc_time64_to_tm(time64_t time, struct rtc_time *tm);
/*
* rtc_tm_sub - Return the difference in seconds.
*/
static inline time64_t rtc_tm_sub(struct rtc_time *lhs, struct rtc_time *rhs)
{
return rtc_tm_to_time64(lhs) - rtc_tm_to_time64(rhs);
}
static inline int is_leap_year(unsigned int year)
{
return (!(year % 4) && (year % 100)) || !(year % 400);
}
/**
* Deprecated. Use rtc_time64_to_tm().
*/
static inline void rtc_time_to_tm(unsigned long time, struct rtc_time *tm)
{
rtc_time64_to_tm(time, tm);
}
/**
* Deprecated. Use rtc_tm_to_time64().
*/
static inline int rtc_tm_to_time(struct rtc_time *tm, unsigned long *time)
{
*time = rtc_tm_to_time64(tm);
return 0;
}
#endif /* _UAPI_LINUX_RTC_H_ */
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