179 				   struct rtc_wkalrm *alarm)  in rtc_read_alarm_internal()  argument
192 		alarm->enabled = 0;  in rtc_read_alarm_internal()
193 		alarm->pending = 0;  in rtc_read_alarm_internal()
194 		alarm->time.tm_sec = -1;  in rtc_read_alarm_internal()
195 		alarm->time.tm_min = -1;  in rtc_read_alarm_internal()
196 		alarm->time.tm_hour = -1;  in rtc_read_alarm_internal()
197 		alarm->time.tm_mday = -1;  in rtc_read_alarm_internal()
198 		alarm->time.tm_mon = -1;  in rtc_read_alarm_internal()
199 		alarm->time.tm_year = -1;  in rtc_read_alarm_internal()
200 		alarm->time.tm_wday = -1;  in rtc_read_alarm_internal()
201 		alarm->time.tm_yday = -1;  in rtc_read_alarm_internal()
202 		alarm->time.tm_isdst = -1;  in rtc_read_alarm_internal()
203 		err = rtc->ops->read_alarm(rtc->dev.parent, alarm);  in rtc_read_alarm_internal()
208 	trace_rtc_read_alarm(rtc_tm_to_time64(&alarm->time), err);  in rtc_read_alarm_internal()
212 int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)  in __rtc_read_alarm()  argument
222 	 * creating invalid alarm->time values, for reasons like:  in __rtc_read_alarm()
230 	 *     to set up as e.g. "alarm 15 minutes after each hour".  in __rtc_read_alarm()
235 	 * RTC driver prevents "periodic alarm" modes.  in __rtc_read_alarm()
238 	 * may have wrapped in the interval since we read the RTC alarm,  in __rtc_read_alarm()
242 	 * Reading the alarm and timestamp in the reverse sequence  in __rtc_read_alarm()
246 	 * then read the RTC alarm value,  in __rtc_read_alarm()
271 		/* get the RTC alarm values, which may be incomplete */  in __rtc_read_alarm()
272 		err = rtc_read_alarm_internal(rtc, alarm);  in __rtc_read_alarm()
277 		if (rtc_valid_tm(&alarm->time) == 0) {  in __rtc_read_alarm()
278 			rtc_add_offset(rtc, &alarm->time);  in __rtc_read_alarm()
293 	/* Fill in the missing alarm fields using the timestamp; we  in __rtc_read_alarm()
294 	 * know there's at least one since alarm->time is invalid.  in __rtc_read_alarm()
296 	if (alarm->time.tm_sec == -1)  in __rtc_read_alarm()
297 		alarm->time.tm_sec = now.tm_sec;  in __rtc_read_alarm()
298 	if (alarm->time.tm_min == -1)  in __rtc_read_alarm()
299 		alarm->time.tm_min = now.tm_min;  in __rtc_read_alarm()
300 	if (alarm->time.tm_hour == -1)  in __rtc_read_alarm()
301 		alarm->time.tm_hour = now.tm_hour;  in __rtc_read_alarm()
304 	if (alarm->time.tm_mday < 1 || alarm->time.tm_mday > 31) {  in __rtc_read_alarm()
305 		alarm->time.tm_mday = now.tm_mday;  in __rtc_read_alarm()
308 	if ((unsigned int)alarm->time.tm_mon >= 12) {  in __rtc_read_alarm()
309 		alarm->time.tm_mon = now.tm_mon;  in __rtc_read_alarm()
313 	if (alarm->time.tm_year == -1) {  in __rtc_read_alarm()
314 		alarm->time.tm_year = now.tm_year;  in __rtc_read_alarm()
319 	/* Can't proceed if alarm is still invalid after replacing  in __rtc_read_alarm()
322 	err = rtc_valid_tm(&alarm->time);  in __rtc_read_alarm()
328 	t_alm = rtc_tm_to_time64(&alarm->time);  in __rtc_read_alarm()
333 	/* 24 hour rollover ... if it's now 10am Monday, an alarm that  in __rtc_read_alarm()
339 		dev_dbg(&rtc->dev, "alarm rollover: %s\n", "day");  in __rtc_read_alarm()
341 		rtc_time64_to_tm(t_alm, &alarm->time);  in __rtc_read_alarm()
344 	/* Month rollover ... if it's the 31th, an alarm on the 3rd will  in __rtc_read_alarm()
345 	 * be next month.  An alarm matching on the 30th, 29th, or 28th  in __rtc_read_alarm()
347 	 * this type of alarm.  in __rtc_read_alarm()
350 		dev_dbg(&rtc->dev, "alarm rollover: %s\n", "month");  in __rtc_read_alarm()
352 			if (alarm->time.tm_mon < 11) {  in __rtc_read_alarm()
353 				alarm->time.tm_mon++;  in __rtc_read_alarm()
355 				alarm->time.tm_mon = 0;  in __rtc_read_alarm()
356 				alarm->time.tm_year++;  in __rtc_read_alarm()
358 			days = rtc_month_days(alarm->time.tm_mon,  in __rtc_read_alarm()
359 					      alarm->time.tm_year);  in __rtc_read_alarm()
360 		} while (days < alarm->time.tm_mday);  in __rtc_read_alarm()
365 		dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year");  in __rtc_read_alarm()
367 			alarm->time.tm_year++;  in __rtc_read_alarm()
368 		} while (!is_leap_year(alarm->time.tm_year + 1900) &&  in __rtc_read_alarm()
369 			 rtc_valid_tm(&alarm->time) != 0);  in __rtc_read_alarm()
373 		dev_warn(&rtc->dev, "alarm rollover not handled\n");  in __rtc_read_alarm()
376 	err = rtc_valid_tm(&alarm->time);  in __rtc_read_alarm()
380 		dev_warn(&rtc->dev, "invalid alarm value: %ptR\n",  in __rtc_read_alarm()
381 			 &alarm->time);  in __rtc_read_alarm()
386 int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)  in rtc_read_alarm()  argument
398 		memset(alarm, 0, sizeof(struct rtc_wkalrm));  in rtc_read_alarm()
399 		alarm->enabled = rtc->aie_timer.enabled;  in rtc_read_alarm()
400 		alarm->time = rtc_ktime_to_tm(rtc->aie_timer.node.expires);  in rtc_read_alarm()
404 	trace_rtc_read_alarm(rtc_tm_to_time64(&alarm->time), err);  in rtc_read_alarm()
409 static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)  in __rtc_set_alarm()  argument
415 	err = rtc_valid_tm(&alarm->time);  in __rtc_set_alarm()
419 	scheduled = rtc_tm_to_time64(&alarm->time);  in __rtc_set_alarm()
429 	 * XXX - We just checked to make sure the alarm time is not  in __rtc_set_alarm()
431 	 * the is alarm set for the next second and the second ticks  in __rtc_set_alarm()
432 	 * over right here, before we set the alarm.  in __rtc_set_alarm()
435 	rtc_subtract_offset(rtc, &alarm->time);  in __rtc_set_alarm()
442 		err = rtc->ops->set_alarm(rtc->dev.parent, alarm);  in __rtc_set_alarm()
444 	trace_rtc_set_alarm(rtc_tm_to_time64(&alarm->time), err);  in __rtc_set_alarm()
448 int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)  in rtc_set_alarm()  argument
457 	err = rtc_valid_tm(&alarm->time);  in rtc_set_alarm()
461 	err = rtc_valid_range(rtc, &alarm->time);  in rtc_set_alarm()
471 	rtc->aie_timer.node.expires = rtc_tm_to_ktime(alarm->time);  in rtc_set_alarm()
473 	if (alarm->enabled)  in rtc_set_alarm()
483 int rtc_initialize_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)  in rtc_initialize_alarm()  argument
488 	err = rtc_valid_tm(&alarm->time);  in rtc_initialize_alarm()
500 	rtc->aie_timer.node.expires = rtc_tm_to_ktime(alarm->time);  in rtc_initialize_alarm()
503 	/* Alarm has to be enabled & in the future for us to enqueue it */  in rtc_initialize_alarm()
504 	if (alarm->enabled && (rtc_tm_to_ktime(now) <  in rtc_initialize_alarm()
799  * the next alarm event appropriately.
825 		struct rtc_wkalrm alarm;  in rtc_timer_enqueue()  local
828 		alarm.time = rtc_ktime_to_tm(timer->node.expires);  in rtc_timer_enqueue()
829 		alarm.enabled = 1;  in rtc_timer_enqueue()
830 		err = __rtc_set_alarm(rtc, &alarm);  in rtc_timer_enqueue()
859  * the next alarm event appropriately.
873 		struct rtc_wkalrm alarm;  in rtc_timer_remove()  local
881 		alarm.time = rtc_ktime_to_tm(next->expires);  in rtc_timer_remove()
882 		alarm.enabled = 1;  in rtc_timer_remove()
883 		err = __rtc_set_alarm(rtc, &alarm);  in rtc_timer_remove()
895  * Expires rtc timers. Reprograms next alarm event if needed.
937 	/* Set next alarm */  in rtc_timer_do_work()
939 		struct rtc_wkalrm alarm;  in rtc_timer_do_work()  local
943 		alarm.time = rtc_ktime_to_tm(next->expires);  in rtc_timer_do_work()
944 		alarm.enabled = 1;  in rtc_timer_do_work()
946 		err = __rtc_set_alarm(rtc, &alarm);  in rtc_timer_do_work()