mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-18 10:13:57 +08:00
d5aa207e46
Allow RTC drivers to return error codes from their read_time or read_alarm methods. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
|
|
* linux/include/asm-arm/rtc.h
|
|
*
|
|
* Copyright (C) 2003 Deep Blue Solutions Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
#ifndef ASMARM_RTC_H
|
|
#define ASMARM_RTC_H
|
|
|
|
struct module;
|
|
|
|
struct rtc_ops {
|
|
struct module *owner;
|
|
int (*open)(void);
|
|
void (*release)(void);
|
|
int (*ioctl)(unsigned int, unsigned long);
|
|
|
|
int (*read_time)(struct rtc_time *);
|
|
int (*set_time)(struct rtc_time *);
|
|
int (*read_alarm)(struct rtc_wkalrm *);
|
|
int (*set_alarm)(struct rtc_wkalrm *);
|
|
int (*proc)(char *buf);
|
|
};
|
|
|
|
void rtc_time_to_tm(unsigned long, struct rtc_time *);
|
|
int rtc_tm_to_time(struct rtc_time *, unsigned long *);
|
|
int rtc_valid_tm(struct rtc_time *);
|
|
void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *);
|
|
void rtc_update(unsigned long, unsigned long);
|
|
int register_rtc(struct rtc_ops *);
|
|
void unregister_rtc(struct rtc_ops *);
|
|
|
|
static inline int rtc_periodic_alarm(struct rtc_time *tm)
|
|
{
|
|
return (tm->tm_year == -1) ||
|
|
((unsigned)tm->tm_mon >= 12) ||
|
|
((unsigned)(tm->tm_mday - 1) >= 31) ||
|
|
((unsigned)tm->tm_hour > 23) ||
|
|
((unsigned)tm->tm_min > 59) ||
|
|
((unsigned)tm->tm_sec > 59);
|
|
}
|
|
|
|
#endif
|