LXR uboot/test/dm/rtc.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2015 Google, Inc
   4 * Written by Simon Glass <sjg@chromium.org>
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <rtc.h>
  10#include <asm/io.h>
  11#include <asm/test.h>
  12#include <dm/test.h>
  13#include <test/ut.h>
  14
  15/* Simple RTC sanity check */
  16static int dm_test_rtc_base(struct unit_test_state *uts)
  17{
  18        struct udevice *dev;
  19
  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));
  23
  24        return 0;
  25}
  26DM_TEST(dm_test_rtc_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  27
  28static void show_time(const char *msg, struct rtc_time *time)
  29{
  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);
  33}
  34
  35static int cmp_times(struct rtc_time *expect, struct rtc_time *time, bool show)
  36{
  37        bool same;
  38
  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;
  45        if (!same && show) {
  46                show_time("expected", expect);
  47                show_time("actual", time);
  48        }
  49
  50        return same ? 0 : -EINVAL;
  51}
  52
  53/* Set and get the time */
  54static int dm_test_rtc_set_get(struct unit_test_state *uts)
  55{
  56        struct rtc_time now, time, cmp;
  57        struct udevice *dev, *emul;
  58        long offset, old_offset, old_base_time;
  59
  60        ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
  61        ut_assertok(dm_rtc_get(dev, &now));
  62
  63        ut_assertok(device_find_first_child(dev, &emul));
  64        ut_assert(emul != NULL);
  65
  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);
  69
  70        memset(&time, '\0', sizeof(time));
  71        time.tm_mday = 25;
  72        time.tm_mon = 8;
  73        time.tm_year = 2004;
  74        time.tm_sec = 0;
  75        time.tm_min = 18;
  76        time.tm_hour = 18;
  77        ut_assertok(dm_rtc_set(dev, &time));
  78
  79        memset(&cmp, '\0', sizeof(cmp));
  80        ut_assertok(dm_rtc_get(dev, &cmp));
  81        ut_assertok(cmp_times(&time, &cmp, true));
  82
  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);
  86
  87        memset(&cmp, '\0', sizeof(cmp));
  88        ut_assertok(dm_rtc_get(dev, &cmp));
  89        ut_asserteq(1, cmp.tm_sec);
  90
  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));
  95
  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));
 101
 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);
 108        } else {
 109                ut_asserteq(now.tm_sec + 1, cmp.tm_sec);
 110        }
 111
 112        old_offset = sandbox_i2c_rtc_set_offset(emul, true, 0);
 113
 114        return 0;
 115}
 116DM_TEST(dm_test_rtc_set_get, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 117
 118/* Reset the time */
 119static int dm_test_rtc_reset(struct unit_test_state *uts)
 120{
 121        struct rtc_time now;
 122        struct udevice *dev, *emul;
 123        long old_base_time, base_time;
 124
 125        ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
 126        ut_assertok(dm_rtc_get(dev, &now));
 127
 128        ut_assertok(device_find_first_child(dev, &emul));
 129        ut_assert(emul != NULL);
 130
 131        old_base_time = sandbox_i2c_rtc_get_set_base_time(emul, 0);
 132
 133        ut_asserteq(0, sandbox_i2c_rtc_get_set_base_time(emul, -1));
 134
 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);
 139
 140        return 0;
 141}
 142DM_TEST(dm_test_rtc_reset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 143
 144/* Check that two RTC devices can be used independently */
 145static int dm_test_rtc_dual(struct unit_test_state *uts)
 146{
 147        struct rtc_time now1, now2, cmp;
 148        struct udevice *dev1, *dev2;
 149        struct udevice *emul1, *emul2;
 150        long offset;
 151
 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));
 156
 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);
 161
 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));
 167
 168        memset(&cmp, '\0', sizeof(cmp));
 169        ut_assertok(dm_rtc_get(dev1, &cmp));
 170        ut_assertok(cmp_times(&now1, &cmp, true));
 171
 172        return 0;
 173}
 174DM_TEST(dm_test_rtc_dual, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 175