dm: rtc: Add tests for real-time clocks
Add some simple tests to verify that the RTC uclass works correctly in U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
parent
fbe07ba0f8
commit
4772511475
@ -21,6 +21,7 @@ obj-$(CONFIG_DM_ETH) += eth.o
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obj-$(CONFIG_DM_GPIO) += gpio.o
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obj-$(CONFIG_DM_I2C) += i2c.o
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obj-$(CONFIG_DM_PCI) += pci.o
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obj-$(CONFIG_DM_RTC) += rtc.o
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obj-$(CONFIG_DM_SPI_FLASH) += sf.o
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obj-$(CONFIG_DM_SPI) += spi.o
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obj-$(CONFIG_DM_USB) += usb.o
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175
test/dm/rtc.c
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175
test/dm/rtc.c
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@ -0,0 +1,175 @@
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/*
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* Copyright (C) 2015 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <rtc.h>
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#include <asm/io.h>
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#include <dm/test.h>
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#include <dm/ut.h>
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#include <asm/test.h>
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/* Simple RTC sanity check */
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static int dm_test_rtc_base(struct dm_test_state *dms)
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{
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struct udevice *dev;
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ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_RTC, 2, &dev));
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ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
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ut_assertok(uclass_get_device(UCLASS_RTC, 1, &dev));
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return 0;
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}
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DM_TEST(dm_test_rtc_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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static void show_time(const char *msg, struct rtc_time *time)
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{
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printf("%s: %02d/%02d/%04d %02d:%02d:%02d\n", msg,
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time->tm_mday, time->tm_mon, time->tm_year,
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time->tm_hour, time->tm_min, time->tm_sec);
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}
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static int cmp_times(struct rtc_time *expect, struct rtc_time *time, bool show)
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{
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bool same;
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same = expect->tm_sec == time->tm_sec;
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same &= expect->tm_min == time->tm_min;
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same &= expect->tm_hour == time->tm_hour;
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same &= expect->tm_mday == time->tm_mday;
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same &= expect->tm_mon == time->tm_mon;
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same &= expect->tm_year == time->tm_year;
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if (!same && show) {
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show_time("expected", expect);
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show_time("actual", time);
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}
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return same ? 0 : -EINVAL;
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}
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/* Set and get the time */
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static int dm_test_rtc_set_get(struct dm_test_state *dms)
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{
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struct rtc_time now, time, cmp;
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struct udevice *dev, *emul;
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long offset, old_offset, old_base_time;
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ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
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ut_assertok(dm_rtc_get(dev, &now));
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ut_assertok(device_find_first_child(dev, &emul));
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ut_assert(emul != NULL);
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/* Tell the RTC to go into manual mode */
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old_offset = sandbox_i2c_rtc_set_offset(emul, false, 0);
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old_base_time = sandbox_i2c_rtc_get_set_base_time(emul, -1);
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memset(&time, '\0', sizeof(time));
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time.tm_mday = 25;
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time.tm_mon = 8;
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time.tm_year = 2004;
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time.tm_sec = 0;
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time.tm_min = 18;
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time.tm_hour = 18;
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ut_assertok(dm_rtc_set(dev, &time));
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memset(&cmp, '\0', sizeof(cmp));
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ut_assertok(dm_rtc_get(dev, &cmp));
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ut_assertok(cmp_times(&time, &cmp, true));
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/* Increment by 1 second */
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offset = sandbox_i2c_rtc_set_offset(emul, false, 0);
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sandbox_i2c_rtc_set_offset(emul, false, offset + 1);
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memset(&cmp, '\0', sizeof(cmp));
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ut_assertok(dm_rtc_get(dev, &cmp));
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ut_asserteq(1, cmp.tm_sec);
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/* Check against original offset */
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sandbox_i2c_rtc_set_offset(emul, false, old_offset);
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ut_assertok(dm_rtc_get(dev, &cmp));
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ut_assertok(cmp_times(&now, &cmp, true));
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/* Back to the original offset */
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sandbox_i2c_rtc_set_offset(emul, false, 0);
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memset(&cmp, '\0', sizeof(cmp));
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ut_assertok(dm_rtc_get(dev, &cmp));
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ut_assertok(cmp_times(&now, &cmp, true));
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/* Increment the base time by 1 emul */
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sandbox_i2c_rtc_get_set_base_time(emul, old_base_time + 1);
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memset(&cmp, '\0', sizeof(cmp));
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ut_assertok(dm_rtc_get(dev, &cmp));
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if (now.tm_sec == 59) {
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ut_asserteq(0, cmp.tm_sec);
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} else {
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ut_asserteq(now.tm_sec + 1, cmp.tm_sec);
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}
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old_offset = sandbox_i2c_rtc_set_offset(emul, true, 0);
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return 0;
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}
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DM_TEST(dm_test_rtc_set_get, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Reset the time */
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static int dm_test_rtc_reset(struct dm_test_state *dms)
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{
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struct rtc_time now;
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struct udevice *dev, *emul;
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long old_base_time, base_time;
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ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
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ut_assertok(dm_rtc_get(dev, &now));
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ut_assertok(device_find_first_child(dev, &emul));
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ut_assert(emul != NULL);
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old_base_time = sandbox_i2c_rtc_get_set_base_time(emul, 0);
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ut_asserteq(0, sandbox_i2c_rtc_get_set_base_time(emul, -1));
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/* Resetting the RTC should put he base time back to normal */
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ut_assertok(dm_rtc_reset(dev));
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base_time = sandbox_i2c_rtc_get_set_base_time(emul, -1);
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ut_asserteq(old_base_time, base_time);
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return 0;
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}
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DM_TEST(dm_test_rtc_reset, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Check that two RTC devices can be used independently */
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static int dm_test_rtc_dual(struct dm_test_state *dms)
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{
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struct rtc_time now1, now2, cmp;
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struct udevice *dev1, *dev2;
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struct udevice *emul1, *emul2;
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long offset;
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ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev1));
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ut_assertok(dm_rtc_get(dev1, &now1));
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ut_assertok(uclass_get_device(UCLASS_RTC, 1, &dev2));
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ut_assertok(dm_rtc_get(dev2, &now2));
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ut_assertok(device_find_first_child(dev1, &emul1));
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ut_assert(emul1 != NULL);
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ut_assertok(device_find_first_child(dev2, &emul2));
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ut_assert(emul2 != NULL);
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offset = sandbox_i2c_rtc_set_offset(emul1, false, -1);
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sandbox_i2c_rtc_set_offset(emul2, false, offset + 1);
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memset(&cmp, '\0', sizeof(cmp));
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ut_assertok(dm_rtc_get(dev2, &cmp));
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ut_asserteq(-EINVAL, cmp_times(&now1, &cmp, false));
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memset(&cmp, '\0', sizeof(cmp));
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ut_assertok(dm_rtc_get(dev1, &cmp));
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ut_assertok(cmp_times(&now1, &cmp, true));
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return 0;
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}
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DM_TEST(dm_test_rtc_dual, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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@ -20,6 +20,8 @@
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testfdt5 = "/some-bus/c-test@5";
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testfdt6 = "/e-test";
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testfdt8 = "/a-test";
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rtc0 = &rtc_0;
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rtc1 = &rtc_1;
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usb0 = &usb_0;
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usb1 = &usb_1;
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usb2 = &usb_2;
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@ -139,6 +141,22 @@
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sandbox,size = <256>;
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};
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};
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rtc_0: rtc@43 {
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reg = <0x43>;
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compatible = "sandbox-rtc";
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emul {
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compatible = "sandbox,i2c-rtc";
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};
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};
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rtc_1: rtc@61 {
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reg = <0x61>;
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compatible = "sandbox-rtc";
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emul {
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compatible = "sandbox,i2c-rtc";
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};
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};
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};
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pci: pci-controller {
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