Commit 7b302772 authored by Alexandre Belloni's avatar Alexandre Belloni Committed by Shuah Khan
Browse files

selftests: rtc: rtctest: add alarm test on minute boundary 



Unfortunately, some RTC don't have a second resolution for alarm so also
test for alarm on a minute boundary.

Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: default avatarShuah Khan <shuah@kernel.org>
parent fdac9448

tools/testing/selftests/rtc/rtctest.c

+102 −0
Original line number Diff line number Diff line
@@ -211,6 +211,108 @@ TEST_F(rtc, alarm_wkalm_set) { 
	ASSERT_EQ(new, secs);

}



TEST_F(rtc, alarm_alm_set_minute) {

	struct timeval tv = { .tv_sec = 62 };

	unsigned long data;

	struct rtc_time tm;

	fd_set readfds;

	time_t secs, new;

	int rc;



	rc = ioctl(self->fd, RTC_RD_TIME, &tm);

	ASSERT_NE(-1, rc);



	secs = timegm((struct tm *)&tm) + 60 - tm.tm_sec;

	gmtime_r(&secs, (struct tm *)&tm);



	rc = ioctl(self->fd, RTC_ALM_SET, &tm);

	if (rc == -1) {

		ASSERT_EQ(EINVAL, errno);

		TH_LOG("skip alarms are not supported.");

		return;

	}



	rc = ioctl(self->fd, RTC_ALM_READ, &tm);

	ASSERT_NE(-1, rc);



	TH_LOG("Alarm time now set to %02d:%02d:%02d.",

	       tm.tm_hour, tm.tm_min, tm.tm_sec);



	/* Enable alarm interrupts */

	rc = ioctl(self->fd, RTC_AIE_ON, 0);

	ASSERT_NE(-1, rc);



	FD_ZERO(&readfds);

	FD_SET(self->fd, &readfds);



	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);

	ASSERT_NE(-1, rc);

	ASSERT_NE(0, rc);



	/* Disable alarm interrupts */

	rc = ioctl(self->fd, RTC_AIE_OFF, 0);

	ASSERT_NE(-1, rc);



	rc = read(self->fd, &data, sizeof(unsigned long));

	ASSERT_NE(-1, rc);

	TH_LOG("data: %lx", data);



	rc = ioctl(self->fd, RTC_RD_TIME, &tm);

	ASSERT_NE(-1, rc);



	new = timegm((struct tm *)&tm);

	ASSERT_EQ(new, secs);

}



TEST_F(rtc, alarm_wkalm_set_minute) {

	struct timeval tv = { .tv_sec = 62 };

	struct rtc_wkalrm alarm = { 0 };

	struct rtc_time tm;

	unsigned long data;

	fd_set readfds;

	time_t secs, new;

	int rc;



	rc = ioctl(self->fd, RTC_RD_TIME, &alarm.time);

	ASSERT_NE(-1, rc);



	secs = timegm((struct tm *)&alarm.time) + 60 - alarm.time.tm_sec;

	gmtime_r(&secs, (struct tm *)&alarm.time);



	alarm.enabled = 1;



	rc = ioctl(self->fd, RTC_WKALM_SET, &alarm);

	if (rc == -1) {

		ASSERT_EQ(EINVAL, errno);

		TH_LOG("skip alarms are not supported.");

		return;

	}



	rc = ioctl(self->fd, RTC_WKALM_RD, &alarm);

	ASSERT_NE(-1, rc);



	TH_LOG("Alarm time now set to %02d/%02d/%02d %02d:%02d:%02d.",

	       alarm.time.tm_mday, alarm.time.tm_mon + 1,

	       alarm.time.tm_year + 1900, alarm.time.tm_hour,

	       alarm.time.tm_min, alarm.time.tm_sec);



	FD_ZERO(&readfds);

	FD_SET(self->fd, &readfds);



	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);

	ASSERT_NE(-1, rc);

	ASSERT_NE(0, rc);



	rc = read(self->fd, &data, sizeof(unsigned long));

	ASSERT_NE(-1, rc);



	rc = ioctl(self->fd, RTC_RD_TIME, &tm);

	ASSERT_NE(-1, rc);



	new = timegm((struct tm *)&tm);

	ASSERT_EQ(new, secs);

}



static void __attribute__((constructor))

__constructor_order_last(void)

{

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