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-rw-r--r--tools/testing/selftests/rtc/.gitignore1
-rw-r--r--tools/testing/selftests/rtc/Makefile4
-rw-r--r--tools/testing/selftests/rtc/rtctest.c91
-rw-r--r--tools/testing/selftests/rtc/setdate.c77
4 files changed, 84 insertions, 89 deletions
diff --git a/tools/testing/selftests/rtc/.gitignore b/tools/testing/selftests/rtc/.gitignore
index fb2d533aa575..a2afe7994e85 100644
--- a/tools/testing/selftests/rtc/.gitignore
+++ b/tools/testing/selftests/rtc/.gitignore
@@ -1,3 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
rtctest
-setdate
diff --git a/tools/testing/selftests/rtc/Makefile b/tools/testing/selftests/rtc/Makefile
index 55198ecc04db..547c244a2ca5 100644
--- a/tools/testing/selftests/rtc/Makefile
+++ b/tools/testing/selftests/rtc/Makefile
@@ -1,11 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
-CFLAGS += -O3 -Wl,-no-as-needed -Wall
+CFLAGS += -O3 -Wl,-no-as-needed -Wall -I$(top_srcdir)/usr/include
LDLIBS += -lrt -lpthread -lm
TEST_GEN_PROGS = rtctest
-TEST_GEN_PROGS_EXTENDED = setdate
-
TEST_FILES := settings
include ../lib.mk
diff --git a/tools/testing/selftests/rtc/rtctest.c b/tools/testing/selftests/rtc/rtctest.c
index 63ce02d1d5cc..be175c0e6ae3 100644
--- a/tools/testing/selftests/rtc/rtctest.c
+++ b/tools/testing/selftests/rtc/rtctest.c
@@ -25,6 +25,13 @@
static char *rtc_file = "/dev/rtc0";
+enum rtc_alarm_state {
+ RTC_ALARM_UNKNOWN,
+ RTC_ALARM_ENABLED,
+ RTC_ALARM_DISABLED,
+ RTC_ALARM_RES_MINUTE,
+};
+
FIXTURE(rtc) {
int fd;
};
@@ -82,6 +89,28 @@ static void nanosleep_with_retries(long ns)
}
}
+static enum rtc_alarm_state get_rtc_alarm_state(int fd, int need_seconds)
+{
+ struct rtc_param param = { 0 };
+ int rc;
+
+ /* Validate kernel reflects unsupported RTC alarm state */
+ param.param = RTC_PARAM_FEATURES;
+ param.index = 0;
+ rc = ioctl(fd, RTC_PARAM_GET, &param);
+ if (rc < 0)
+ return RTC_ALARM_UNKNOWN;
+
+ if ((param.uvalue & _BITUL(RTC_FEATURE_ALARM)) == 0)
+ return RTC_ALARM_DISABLED;
+
+ /* Check if alarm has desired granularity */
+ if (need_seconds && (param.uvalue & _BITUL(RTC_FEATURE_ALARM_RES_MINUTE)))
+ return RTC_ALARM_RES_MINUTE;
+
+ return RTC_ALARM_ENABLED;
+}
+
TEST_F_TIMEOUT(rtc, date_read_loop, READ_LOOP_DURATION_SEC + 2) {
int rc;
long iter_count = 0;
@@ -197,11 +226,18 @@ TEST_F(rtc, alarm_alm_set) {
fd_set readfds;
time_t secs, new;
int rc;
+ enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
if (self->fd == -1 && errno == ENOENT)
SKIP(return, "Skipping test since %s does not exist", rtc_file);
ASSERT_NE(-1, self->fd);
+ alarm_state = get_rtc_alarm_state(self->fd, 1);
+ if (alarm_state == RTC_ALARM_DISABLED)
+ SKIP(return, "Skipping test since alarms are not supported.");
+ if (alarm_state == RTC_ALARM_RES_MINUTE)
+ SKIP(return, "Skipping test since alarms has only minute granularity.");
+
rc = ioctl(self->fd, RTC_RD_TIME, &tm);
ASSERT_NE(-1, rc);
@@ -210,6 +246,11 @@ TEST_F(rtc, alarm_alm_set) {
rc = ioctl(self->fd, RTC_ALM_SET, &tm);
if (rc == -1) {
+ /*
+ * Report error if rtc alarm was enabled. Fallback to check ioctl
+ * error number if rtc alarm state is unknown.
+ */
+ ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
ASSERT_EQ(EINVAL, errno);
TH_LOG("skip alarms are not supported.");
return;
@@ -255,11 +296,18 @@ TEST_F(rtc, alarm_wkalm_set) {
fd_set readfds;
time_t secs, new;
int rc;
+ enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
if (self->fd == -1 && errno == ENOENT)
SKIP(return, "Skipping test since %s does not exist", rtc_file);
ASSERT_NE(-1, self->fd);
+ alarm_state = get_rtc_alarm_state(self->fd, 1);
+ if (alarm_state == RTC_ALARM_DISABLED)
+ SKIP(return, "Skipping test since alarms are not supported.");
+ if (alarm_state == RTC_ALARM_RES_MINUTE)
+ SKIP(return, "Skipping test since alarms has only minute granularity.");
+
rc = ioctl(self->fd, RTC_RD_TIME, &alarm.time);
ASSERT_NE(-1, rc);
@@ -270,6 +318,11 @@ TEST_F(rtc, alarm_wkalm_set) {
rc = ioctl(self->fd, RTC_WKALM_SET, &alarm);
if (rc == -1) {
+ /*
+ * Report error if rtc alarm was enabled. Fallback to check ioctl
+ * error number if rtc alarm state is unknown.
+ */
+ ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
ASSERT_EQ(EINVAL, errno);
TH_LOG("skip alarms are not supported.");
return;
@@ -307,11 +360,16 @@ TEST_F_TIMEOUT(rtc, alarm_alm_set_minute, 65) {
fd_set readfds;
time_t secs, new;
int rc;
+ enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
if (self->fd == -1 && errno == ENOENT)
SKIP(return, "Skipping test since %s does not exist", rtc_file);
ASSERT_NE(-1, self->fd);
+ alarm_state = get_rtc_alarm_state(self->fd, 0);
+ if (alarm_state == RTC_ALARM_DISABLED)
+ SKIP(return, "Skipping test since alarms are not supported.");
+
rc = ioctl(self->fd, RTC_RD_TIME, &tm);
ASSERT_NE(-1, rc);
@@ -320,6 +378,11 @@ TEST_F_TIMEOUT(rtc, alarm_alm_set_minute, 65) {
rc = ioctl(self->fd, RTC_ALM_SET, &tm);
if (rc == -1) {
+ /*
+ * Report error if rtc alarm was enabled. Fallback to check ioctl
+ * error number if rtc alarm state is unknown.
+ */
+ ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
ASSERT_EQ(EINVAL, errno);
TH_LOG("skip alarms are not supported.");
return;
@@ -365,11 +428,16 @@ TEST_F_TIMEOUT(rtc, alarm_wkalm_set_minute, 65) {
fd_set readfds;
time_t secs, new;
int rc;
+ enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
if (self->fd == -1 && errno == ENOENT)
SKIP(return, "Skipping test since %s does not exist", rtc_file);
ASSERT_NE(-1, self->fd);
+ alarm_state = get_rtc_alarm_state(self->fd, 0);
+ if (alarm_state == RTC_ALARM_DISABLED)
+ SKIP(return, "Skipping test since alarms are not supported.");
+
rc = ioctl(self->fd, RTC_RD_TIME, &alarm.time);
ASSERT_NE(-1, rc);
@@ -380,6 +448,11 @@ TEST_F_TIMEOUT(rtc, alarm_wkalm_set_minute, 65) {
rc = ioctl(self->fd, RTC_WKALM_SET, &alarm);
if (rc == -1) {
+ /*
+ * Report error if rtc alarm was enabled. Fallback to check ioctl
+ * error number if rtc alarm state is unknown.
+ */
+ ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
ASSERT_EQ(EINVAL, errno);
TH_LOG("skip alarms are not supported.");
return;
@@ -410,15 +483,10 @@ TEST_F_TIMEOUT(rtc, alarm_wkalm_set_minute, 65) {
ASSERT_EQ(new, secs);
}
-static void __attribute__((constructor))
-__constructor_order_last(void)
-{
- if (!__constructor_order)
- __constructor_order = _CONSTRUCTOR_ORDER_BACKWARD;
-}
-
int main(int argc, char **argv)
{
+ int ret = -1;
+
switch (argc) {
case 2:
rtc_file = argv[1];
@@ -430,5 +498,12 @@ int main(int argc, char **argv)
return 1;
}
- return test_harness_run(argc, argv);
+ /* Run the test if rtc_file is accessible */
+ if (access(rtc_file, R_OK) == 0)
+ ret = test_harness_run(argc, argv);
+ else
+ ksft_exit_skip("[SKIP]: Cannot access rtc file %s - Exiting\n",
+ rtc_file);
+
+ return ret;
}
diff --git a/tools/testing/selftests/rtc/setdate.c b/tools/testing/selftests/rtc/setdate.c
deleted file mode 100644
index b303890b3de2..000000000000
--- a/tools/testing/selftests/rtc/setdate.c
+++ /dev/null
@@ -1,77 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* Real Time Clock Driver Test
- * by: Benjamin Gaignard (benjamin.gaignard@linaro.org)
- *
- * To build
- * gcc rtctest_setdate.c -o rtctest_setdate
- */
-
-#include <stdio.h>
-#include <linux/rtc.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <errno.h>
-
-static const char default_time[] = "00:00:00";
-
-int main(int argc, char **argv)
-{
- int fd, retval;
- struct rtc_time new, current;
- const char *rtc, *date;
- const char *time = default_time;
-
- switch (argc) {
- case 4:
- time = argv[3];
- /* FALLTHROUGH */
- case 3:
- date = argv[2];
- rtc = argv[1];
- break;
- default:
- fprintf(stderr, "usage: rtctest_setdate <rtcdev> <DD-MM-YYYY> [HH:MM:SS]\n");
- return 1;
- }
-
- fd = open(rtc, O_RDONLY);
- if (fd == -1) {
- perror(rtc);
- exit(errno);
- }
-
- sscanf(date, "%d-%d-%d", &new.tm_mday, &new.tm_mon, &new.tm_year);
- new.tm_mon -= 1;
- new.tm_year -= 1900;
- sscanf(time, "%d:%d:%d", &new.tm_hour, &new.tm_min, &new.tm_sec);
-
- fprintf(stderr, "Test will set RTC date/time to %d-%d-%d, %02d:%02d:%02d.\n",
- new.tm_mday, new.tm_mon + 1, new.tm_year + 1900,
- new.tm_hour, new.tm_min, new.tm_sec);
-
- /* Write the new date in RTC */
- retval = ioctl(fd, RTC_SET_TIME, &new);
- if (retval == -1) {
- perror("RTC_SET_TIME ioctl");
- close(fd);
- exit(errno);
- }
-
- /* Read back */
- retval = ioctl(fd, RTC_RD_TIME, &current);
- if (retval == -1) {
- perror("RTC_RD_TIME ioctl");
- exit(errno);
- }
-
- fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
- current.tm_mday, current.tm_mon + 1, current.tm_year + 1900,
- current.tm_hour, current.tm_min, current.tm_sec);
-
- close(fd);
- return 0;
-}
generated by cgit (git 2.34.1) at 2025-07-23 22:33:29 +0000