1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2015 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
15 /* Simple RTC sanity check */
16 static int dm_test_rtc_base(struct unit_test_state *uts)
20 ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_RTC, 2, &dev));
21 ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
22 ut_assertok(uclass_get_device(UCLASS_RTC, 1, &dev));
26 DM_TEST(dm_test_rtc_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
28 static void show_time(const char *msg, struct rtc_time *time)
30 printf("%s: %02d/%02d/%04d %02d:%02d:%02d\n", msg,
31 time->tm_mday, time->tm_mon, time->tm_year,
32 time->tm_hour, time->tm_min, time->tm_sec);
35 static int cmp_times(struct rtc_time *expect, struct rtc_time *time, bool show)
39 same = expect->tm_sec == time->tm_sec;
40 same &= expect->tm_min == time->tm_min;
41 same &= expect->tm_hour == time->tm_hour;
42 same &= expect->tm_mday == time->tm_mday;
43 same &= expect->tm_mon == time->tm_mon;
44 same &= expect->tm_year == time->tm_year;
46 show_time("expected", expect);
47 show_time("actual", time);
50 return same ? 0 : -EINVAL;
53 /* Set and get the time */
54 static int dm_test_rtc_set_get(struct unit_test_state *uts)
56 struct rtc_time now, time, cmp;
57 struct udevice *dev, *emul;
58 long offset, old_offset, old_base_time;
60 ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
61 ut_assertok(dm_rtc_get(dev, &now));
63 ut_assertok(device_find_first_child(dev, &emul));
64 ut_assert(emul != NULL);
66 /* Tell the RTC to go into manual mode */
67 old_offset = sandbox_i2c_rtc_set_offset(emul, false, 0);
68 old_base_time = sandbox_i2c_rtc_get_set_base_time(emul, -1);
70 memset(&time, '\0', sizeof(time));
77 ut_assertok(dm_rtc_set(dev, &time));
79 memset(&cmp, '\0', sizeof(cmp));
80 ut_assertok(dm_rtc_get(dev, &cmp));
81 ut_assertok(cmp_times(&time, &cmp, true));
83 /* Increment by 1 second */
84 offset = sandbox_i2c_rtc_set_offset(emul, false, 0);
85 sandbox_i2c_rtc_set_offset(emul, false, offset + 1);
87 memset(&cmp, '\0', sizeof(cmp));
88 ut_assertok(dm_rtc_get(dev, &cmp));
89 ut_asserteq(1, cmp.tm_sec);
91 /* Check against original offset */
92 sandbox_i2c_rtc_set_offset(emul, false, old_offset);
93 ut_assertok(dm_rtc_get(dev, &cmp));
94 ut_assertok(cmp_times(&now, &cmp, true));
96 /* Back to the original offset */
97 sandbox_i2c_rtc_set_offset(emul, false, 0);
98 memset(&cmp, '\0', sizeof(cmp));
99 ut_assertok(dm_rtc_get(dev, &cmp));
100 ut_assertok(cmp_times(&now, &cmp, true));
102 /* Increment the base time by 1 emul */
103 sandbox_i2c_rtc_get_set_base_time(emul, old_base_time + 1);
104 memset(&cmp, '\0', sizeof(cmp));
105 ut_assertok(dm_rtc_get(dev, &cmp));
106 if (now.tm_sec == 59) {
107 ut_asserteq(0, cmp.tm_sec);
109 ut_asserteq(now.tm_sec + 1, cmp.tm_sec);
112 old_offset = sandbox_i2c_rtc_set_offset(emul, true, 0);
116 DM_TEST(dm_test_rtc_set_get, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
119 static int dm_test_rtc_reset(struct unit_test_state *uts)
122 struct udevice *dev, *emul;
123 long old_base_time, base_time;
125 ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
126 ut_assertok(dm_rtc_get(dev, &now));
128 ut_assertok(device_find_first_child(dev, &emul));
129 ut_assert(emul != NULL);
131 old_base_time = sandbox_i2c_rtc_get_set_base_time(emul, 0);
133 ut_asserteq(0, sandbox_i2c_rtc_get_set_base_time(emul, -1));
135 /* Resetting the RTC should put he base time back to normal */
136 ut_assertok(dm_rtc_reset(dev));
137 base_time = sandbox_i2c_rtc_get_set_base_time(emul, -1);
138 ut_asserteq(old_base_time, base_time);
142 DM_TEST(dm_test_rtc_reset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
144 /* Check that two RTC devices can be used independently */
145 static int dm_test_rtc_dual(struct unit_test_state *uts)
147 struct rtc_time now1, now2, cmp;
148 struct udevice *dev1, *dev2;
149 struct udevice *emul1, *emul2;
152 ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev1));
153 ut_assertok(dm_rtc_get(dev1, &now1));
154 ut_assertok(uclass_get_device(UCLASS_RTC, 1, &dev2));
155 ut_assertok(dm_rtc_get(dev2, &now2));
157 ut_assertok(device_find_first_child(dev1, &emul1));
158 ut_assert(emul1 != NULL);
159 ut_assertok(device_find_first_child(dev2, &emul2));
160 ut_assert(emul2 != NULL);
162 offset = sandbox_i2c_rtc_set_offset(emul1, false, -1);
163 sandbox_i2c_rtc_set_offset(emul2, false, offset + 1);
164 memset(&cmp, '\0', sizeof(cmp));
165 ut_assertok(dm_rtc_get(dev2, &cmp));
166 ut_asserteq(-EINVAL, cmp_times(&now1, &cmp, false));
168 memset(&cmp, '\0', sizeof(cmp));
169 ut_assertok(dm_rtc_get(dev1, &cmp));
170 ut_assertok(cmp_times(&now1, &cmp, true));
174 DM_TEST(dm_test_rtc_dual, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);