From: Alexandre Belloni alexandre.belloni@bootlin.com

[ Upstream commit 7b3027728f4d4f6763f4d7e771acfc9424cdd0e6 ]

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 Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/rtc/rtctest.c | 102 ++++++++++++++++++++++++++ 1 file changed, 102 insertions(+)

diff --git a/tools/testing/selftests/rtc/rtctest.c b/tools/testing/selftests/rtc/rtctest.c index dea4e3d6d9e1..b2065536d407 100644 --- 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) {