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-rw-r--r--tools/testing/selftests/timers/rtctest.c128
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, &current);
+ if (retval == -1) {
+ perror("RTC_RD_TIME ioctl");
+ exit(errno);
+ }
+
+ if(compare_dates(&cutoff_dates[i], &current)) {
+ 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, &current);
+ if (retval == -1) {
+ perror("RTC_ALM_READ ioctl");
+ exit(errno);
+ }
+
+ if(compare_dates(&cutoff_dates[i], &current)) {
+ 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");