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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: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Shuah Khan <shuah@kernel.org>
This commit is contained in:
Alexandre Belloni 2018-12-18 22:34:21 +01:00 committed by Shuah Khan
parent fdac94489c
commit 7b3027728f
1 changed files with 102 additions and 0 deletions
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102
tools/testing/selftests/rtc/rtctest.c
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@ -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)
{