Commit 69c31226 authored by Benjamin Gaignard's avatar Benjamin Gaignard Committed by Alexandre Belloni

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: default avatarBenjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@free-electrons.com>
parent c96396f0
...@@ -21,6 +21,9 @@ ...@@ -21,6 +21,9 @@
#include <stdlib.h> #include <stdlib.h>
#include <errno.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 * This expects the new RTC class driver framework, working with
...@@ -29,23 +32,84 @@ ...@@ -29,23 +32,84 @@
*/ */
static const char default_rtc[] = "/dev/rtc0"; 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 main(int argc, char **argv)
{ {
int i, fd, retval, irqcount = 0; int i, fd, retval, irqcount = 0, dangerous = 0;
unsigned long tmp, data; unsigned long tmp, data;
struct rtc_time rtc_tm; struct rtc_time rtc_tm;
const char *rtc = default_rtc; const char *rtc = default_rtc;
struct timeval start, end, diff; struct timeval start, end, diff;
switch (argc) { switch (argc) {
case 3:
if (*argv[2] == 'd')
dangerous = 1;
case 2: case 2:
rtc = argv[1]; rtc = argv[1];
/* FALLTHROUGH */ /* FALLTHROUGH */
case 1: case 1:
break; break;
default: default:
fprintf(stderr, "usage: rtctest [rtcdev]\n"); fprintf(stderr, "usage: rtctest [rtcdev] [d]\n");
return 1; return 1;
} }
...@@ -202,7 +266,7 @@ int main(int argc, char **argv) ...@@ -202,7 +266,7 @@ int main(int argc, char **argv)
/* not all RTCs support periodic IRQs */ /* not all RTCs support periodic IRQs */
if (errno == EINVAL) { if (errno == EINVAL) {
fprintf(stderr, "\nNo periodic IRQ support\n"); fprintf(stderr, "\nNo periodic IRQ support\n");
goto done; goto test_DATE;
} }
perror("RTC_IRQP_READ ioctl"); perror("RTC_IRQP_READ ioctl");
exit(errno); exit(errno);
...@@ -221,7 +285,7 @@ int main(int argc, char **argv) ...@@ -221,7 +285,7 @@ int main(int argc, char **argv)
if (errno == EINVAL) { if (errno == EINVAL) {
fprintf(stderr, fprintf(stderr,
"\n...Periodic IRQ rate is fixed\n"); "\n...Periodic IRQ rate is fixed\n");
goto done; goto test_DATE;
} }
perror("RTC_IRQP_SET ioctl"); perror("RTC_IRQP_SET ioctl");
exit(errno); exit(errno);
...@@ -269,6 +333,62 @@ int main(int argc, char **argv) ...@@ -269,6 +333,62 @@ int main(int argc, char **argv)
} }
} }
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: done:
fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n"); fprintf(stderr, "\n\n\t\t\t *** Test complete ***\n");
......
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