diff options
Diffstat (limited to 'tools/testing/selftests/timers/rtctest.c')
| -rw-r--r-- | tools/testing/selftests/timers/rtctest.c | 128 |
1 files changed, 124 insertions, 4 deletions
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 <stdlib.h> #include <errno.h> +#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"); |