1 /*
2 * Copyright 2023 Meta
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/ztest.h>
8 #include <zephyr/device.h>
9 #include <zephyr/drivers/rtc.h>
10
11 #include <time.h>
12
13 /* date "+%s" -d "Sat Jan 1 2000 00:00:00 GMT+0000" */
14 #define Y2K_STAMP 946684800UL
15
16 #define SECONDS_BEFORE 1
17 #define SECONDS_AFTER 1
18
19 #define RTC_TEST_START_TIME (Y2K_STAMP - SECONDS_BEFORE)
20 #define RTC_TEST_STOP_TIME (Y2K_STAMP + SECONDS_AFTER)
21
22 static const struct device *rtc = DEVICE_DT_GET(DT_ALIAS(rtc));
23
ZTEST(rtc_api,test_y2k)24 ZTEST(rtc_api, test_y2k)
25 {
26 enum test_time {
27 Y99,
28 Y2K,
29 };
30
31 static struct rtc_time rtm[2] = {
32 {.tm_isdst = -1, .tm_nsec = 0},
33 {.tm_isdst = -1, .tm_nsec = 0},
34 };
35 struct tm *const tm[2] = {
36 (struct tm *const)&rtm[0],
37 (struct tm *const)&rtm[1],
38 };
39 const time_t t[] = {
40 [Y99] = RTC_TEST_START_TIME,
41 [Y2K] = RTC_TEST_STOP_TIME,
42 };
43
44 /* Party like it's 1999 */
45 zassert_not_null(gmtime_r(&t[Y99], tm[Y99]));
46
47 int ret = rtc_set_time(rtc, &rtm[Y99]);
48
49 if (ret == -EINVAL) {
50 TC_PRINT("Rollover not supported\n");
51 ztest_test_skip();
52 } else {
53 zassert_ok(ret, "RTC Set Time Failed");
54 }
55
56 /* Living after midnight */
57 k_sleep(K_SECONDS(SECONDS_BEFORE + SECONDS_AFTER));
58 zassert_ok(rtc_get_time(rtc, &rtm[Y2K]));
59
60 /* It's the end of the world as we know it */
61 zassert_equal(rtm[Y2K].tm_year + 1900, 2000, "wrong year: %d", rtm[Y2K].tm_year + 1900);
62 zassert_equal(rtm[Y2K].tm_mon, 0, "wrong month: %d", rtm[Y2K].tm_mon);
63 zassert_equal(rtm[Y2K].tm_mday, 1, "wrong day-of-month: %d", rtm[Y2K].tm_mday);
64 zassert_true(rtm[Y2K].tm_yday == 0 || rtm[Y2K].tm_yday == -1, "wrong day-of-year: %d",
65 rtm[Y2K].tm_yday);
66 zassert_true(rtm[Y2K].tm_wday == 6 || rtm[Y2K].tm_wday == -1, "wrong day-of-week: %d",
67 rtm[Y2K].tm_wday);
68 zassert_equal(rtm[Y2K].tm_hour, 0, "wrong hour: %d", rtm[Y2K].tm_hour);
69 zassert_equal(rtm[Y2K].tm_min, 0, "wrong minute: %d", rtm[Y2K].tm_min);
70 zassert_equal(rtm[Y2K].tm_sec, SECONDS_AFTER, "wrong second: %d", rtm[Y2K].tm_sec);
71 }
72
