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>

diff --git a/tools/testing/selftests/rtc/rtctest.c b/tools/testing/selftests/rtc/rtctest.c
index dea4e3d6d9e188c7321102326b30572582ddd709..b2065536d40757eeac0487aff3a95c5fcec9467d 100644 (file)
--- a/tools/testing/selftests/rtc/rtctest.c
+++ b/tools/testing/selftests/rtc/rtctest.c
@@ -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)
 {