111 lines
2.2 KiB
C
111 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2020 Unisoc Communications Inc.
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*/
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/*\
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* [Description]
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*
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* RTC device set time function test.
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*
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* [Algorithm]
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*
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* - Save RTC time
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* - Set RTC time
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* - Read the RTC time back
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* - Check if the set time and the read time are identical
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* - Restore RTC time
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*/
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#include <stdio.h>
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#include "tst_rtctime.h"
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#include "tst_wallclock.h"
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#include "tst_test.h"
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static char *rtc_dev = "/dev/rtc";
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static char *rtctime_to_str(struct rtc_time *tm)
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{
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static char rtctime_buf[128];
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sprintf(rtctime_buf, "%04d-%02d-%02d %02d:%02d:%02d",
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tm->tm_year + 1900,
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tm->tm_mon + 1,
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tm->tm_mday,
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tm->tm_hour,
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tm->tm_min,
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tm->tm_sec);
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return rtctime_buf;
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}
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static int rtc_tm_cmp(struct rtc_time *set_tm, struct rtc_time *read_tm)
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{
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return !((set_tm->tm_sec == read_tm->tm_sec)
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&& (set_tm->tm_min == read_tm->tm_min)
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&& (set_tm->tm_hour == read_tm->tm_hour)
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&& (set_tm->tm_mday == read_tm->tm_mday)
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&& (set_tm->tm_mon == read_tm->tm_mon)
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&& (set_tm->tm_year == read_tm->tm_year));
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}
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static void set_rtc_test(void)
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{
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struct rtc_time read_tm;
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int ret;
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struct rtc_time set_tm = {
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.tm_sec = 30,
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.tm_min = 23,
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.tm_hour = 13,
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.tm_mday = 9,
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.tm_mon = 9,
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.tm_year = 120,
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};
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/* set rtc to 2020.10.9 13:23:30 */
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tst_res(TINFO, "To set RTC date/time is: %s", rtctime_to_str(&set_tm));
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ret = tst_rtc_settime(rtc_dev, &set_tm);
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if (ret != 0) {
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tst_res(TFAIL | TERRNO, "ioctl() RTC_SET_TIME");
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return;
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}
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/* Read current RTC Time */
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ret = tst_rtc_gettime(rtc_dev, &read_tm);
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if (ret != 0) {
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tst_res(TFAIL | TERRNO, "ioctl() RTC_RD_TIME");
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return;
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}
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tst_res(TINFO, "read RTC date/time is: %s", rtctime_to_str(&read_tm));
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if (rtc_tm_cmp(&set_tm, &read_tm)) {
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tst_res(TFAIL, "RTC SET TEST");
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return;
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}
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tst_res(TPASS, "The read RTC time is consistent with set time");
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}
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static void rtc_setup(void)
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{
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int exists = access(rtc_dev, F_OK);
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if (exists < 0)
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tst_brk(TCONF, "RTC device %s not available", rtc_dev);
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tst_rtc_clock_save(rtc_dev);
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}
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static void rtc_cleanup(void)
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{
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tst_rtc_clock_restore(rtc_dev);
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}
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static struct tst_test test = {
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.setup = rtc_setup,
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.test_all = set_rtc_test,
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.cleanup = rtc_cleanup,
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.needs_root = 1,
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};
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