From c96396f0780e3b217f5194538e6dcd3c22d00122 Mon Sep 17 00:00:00 2001 From: Benjamin Gaignard Date: Mon, 19 Jun 2017 11:36:20 +0200 Subject: tools: timer: add rtctest_setdate This tool allow to set directly the time and date to a RTC device. Unlike other tools isn't doens't use "struct timeval" or "time_t" so it is safe for 32bits platforms when testing for y2038/2106 bug. Signed-off-by: Benjamin Gaignard Signed-off-by: Alexandre Belloni --- tools/testing/selftests/timers/Makefile | 2 +- tools/testing/selftests/timers/rtctest_setdate.c | 86 ++++++++++++++++++++++++ 2 files changed, 87 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/timers/rtctest_setdate.c (limited to 'tools/testing') diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile index 5fa1d7e9a915..54481f17518a 100644 --- a/tools/testing/selftests/timers/Makefile +++ b/tools/testing/selftests/timers/Makefile @@ -9,7 +9,7 @@ TEST_GEN_PROGS = posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat \ TEST_GEN_PROGS_EXTENDED = alarmtimer-suspend valid-adjtimex adjtick change_skew \ skew_consistency clocksource-switch leap-a-day \ - leapcrash set-tai set-2038 set-tz + leapcrash set-tai set-2038 set-tz rtctest_setdate include ../lib.mk diff --git a/tools/testing/selftests/timers/rtctest_setdate.c b/tools/testing/selftests/timers/rtctest_setdate.c new file mode 100644 index 000000000000..2cb78489eca4 --- /dev/null +++ b/tools/testing/selftests/timers/rtctest_setdate.c @@ -0,0 +1,86 @@ +/* Real Time Clock Driver Test + * by: Benjamin Gaignard (benjamin.gaignard@linaro.org) + * + * To build + * gcc rtctest_setdate.c -o rtctest_setdate + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static const char default_time[] = "00:00:00"; + +int main(int argc, char **argv) +{ + int fd, retval; + struct rtc_time new, current; + const char *rtc, *date; + const char *time = default_time; + + switch (argc) { + case 4: + time = argv[3]; + /* FALLTHROUGH */ + case 3: + date = argv[2]; + rtc = argv[1]; + break; + default: + fprintf(stderr, "usage: rtctest_setdate [HH:MM:SS]\n"); + return 1; + } + + fd = open(rtc, O_RDONLY); + if (fd == -1) { + perror(rtc); + exit(errno); + } + + sscanf(date, "%d-%d-%d", &new.tm_mday, &new.tm_mon, &new.tm_year); + new.tm_mon -= 1; + new.tm_year -= 1900; + sscanf(time, "%d:%d:%d", &new.tm_hour, &new.tm_min, &new.tm_sec); + + fprintf(stderr, "Test will set RTC date/time to %d-%d-%d, %02d:%02d:%02d.\n", + new.tm_mday, new.tm_mon + 1, new.tm_year + 1900, + new.tm_hour, new.tm_min, new.tm_sec); + + /* Write the new date in RTC */ + retval = ioctl(fd, RTC_SET_TIME, &new); + if (retval == -1) { + perror("RTC_SET_TIME ioctl"); + close(fd); + exit(errno); + } + + /* Read back */ + retval = ioctl(fd, RTC_RD_TIME, ¤t); + if (retval == -1) { + perror("RTC_RD_TIME ioctl"); + exit(errno); + } + + fprintf(stderr, "\n\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n", + current.tm_mday, current.tm_mon + 1, current.tm_year + 1900, + current.tm_hour, current.tm_min, current.tm_sec); + + close(fd); + return 0; +} -- cgit v1.2.3-59-g8ed1b From 69c31226fc9f887dcd5c27a91f5cc0f244a6953e Mon Sep 17 00:00:00 2001 From: Benjamin Gaignard Date: Mon, 19 Jun 2017 11:36:21 +0200 Subject: rtc: rtctest: add check for problematic dates Some dates could be problematic because they reach the limits of RTC hardware capabilities. This patch add various of them but since it will change RTC date it will be activated only when 'd' args is set. Signed-off-by: Benjamin Gaignard Signed-off-by: Alexandre Belloni --- tools/testing/selftests/timers/rtctest.c | 128 ++++++++++++++++++++++++++++++- 1 file changed, 124 insertions(+), 4 deletions(-) (limited to 'tools/testing') diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c index 4230d3052e5d..f61170f7b024 100644 --- a/tools/testing/selftests/timers/rtctest.c +++ b/tools/testing/selftests/timers/rtctest.c @@ -21,6 +21,9 @@ #include #include +#ifndef ARRAY_SIZE +# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#endif /* * This expects the new RTC class driver framework, working with @@ -29,23 +32,84 @@ */ static const char default_rtc[] = "/dev/rtc0"; +static struct rtc_time cutoff_dates[] = { + { + .tm_year = 70, /* 1970 -1900 */ + .tm_mday = 1, + }, + /* signed time_t 19/01/2038 3:14:08 */ + { + .tm_year = 138, + .tm_mday = 19, + }, + { + .tm_year = 138, + .tm_mday = 20, + }, + { + .tm_year = 199, /* 2099 -1900 */ + .tm_mday = 1, + }, + { + .tm_year = 200, /* 2100 -1900 */ + .tm_mday = 1, + }, + /* unsigned time_t 07/02/2106 7:28:15*/ + { + .tm_year = 205, + .tm_mon = 1, + .tm_mday = 7, + }, + { + .tm_year = 206, + .tm_mon = 1, + .tm_mday = 8, + }, + /* signed time on 64bit in nanoseconds 12/04/2262 01:47:16*/ + { + .tm_year = 362, + .tm_mon = 3, + .tm_mday = 12, + }, + { + .tm_year = 362, /* 2262 -1900 */ + .tm_mon = 3, + .tm_mday = 13, + }, +}; + +static int compare_dates(struct rtc_time *a, struct rtc_time *b) +{ + if (a->tm_year != b->tm_year || + a->tm_mon != b->tm_mon || + a->tm_mday != b->tm_mday || + a->tm_hour != b->tm_hour || + a->tm_min != b->tm_min || + ((b->tm_sec - a->tm_sec) > 1)) + return 1; + + return 0; +} int main(int argc, char **argv) { - int i, fd, retval, irqcount = 0; + int i, fd, retval, irqcount = 0, dangerous = 0; unsigned long tmp, data; struct rtc_time rtc_tm; const char *rtc = default_rtc; struct timeval start, end, diff; switch (argc) { + case 3: + if (*argv[2] == 'd') + dangerous = 1; case 2: rtc = argv[1]; /* FALLTHROUGH */ case 1: break; default: - fprintf(stderr, "usage: rtctest [rtcdev]\n"); + fprintf(stderr, "usage: rtctest [rtcdev] [d]\n"); return 1; } @@ -202,7 +266,7 @@ test_PIE: /* not all RTCs support periodic IRQs */ if (errno == EINVAL) { fprintf(stderr, "\nNo periodic IRQ support\n"); - goto done; + goto test_DATE; } perror("RTC_IRQP_READ ioctl"); exit(errno); @@ -221,7 +285,7 @@ test_PIE: if (errno == EINVAL) { fprintf(stderr, "\n...Periodic IRQ rate is fixed\n"); - goto done; + goto test_DATE; } perror("RTC_IRQP_SET ioctl"); exit(errno); @@ -269,6 +333,62 @@ test_PIE: } } +test_DATE: + if (!dangerous) + goto done; + + fprintf(stderr, "\nTesting problematic dates\n"); + + for (i = 0; i < ARRAY_SIZE(cutoff_dates); i++) { + struct rtc_time current; + + /* Write the new date in RTC */ + retval = ioctl(fd, RTC_SET_TIME, &cutoff_dates[i]); + if (retval == -1) { + perror("RTC_SET_TIME ioctl"); + close(fd); + exit(errno); + } + + /* Read back */ + retval = ioctl(fd, RTC_RD_TIME, ¤t); + if (retval == -1) { + perror("RTC_RD_TIME ioctl"); + exit(errno); + } + + if(compare_dates(&cutoff_dates[i], ¤t)) { + fprintf(stderr,"Setting date %d failed\n", + cutoff_dates[i].tm_year + 1900); + goto done; + } + + cutoff_dates[i].tm_sec += 5; + + /* Write the new alarm in RTC */ + retval = ioctl(fd, RTC_ALM_SET, &cutoff_dates[i]); + if (retval == -1) { + perror("RTC_ALM_SET ioctl"); + close(fd); + exit(errno); + } + + /* Read back */ + retval = ioctl(fd, RTC_ALM_READ, ¤t); + if (retval == -1) { + perror("RTC_ALM_READ ioctl"); + exit(errno); + } + + if(compare_dates(&cutoff_dates[i], ¤t)) { + fprintf(stderr,"Setting alarm %d failed\n", + cutoff_dates[i].tm_year + 1900); + goto done; + } + + fprintf(stderr, "Setting year %d is OK \n", + cutoff_dates[i].tm_year + 1900); + } done: fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n"); -- cgit v1.2.3-59-g8ed1b