int vmm_rtcdev_sync_wallclock(struct vmm_rtcdev *rdev)
{
int rc;
struct vmm_timezone tz, utc_tz;
struct vmm_timeval tv;
struct vmm_rtc_time tm;
if (!rdev) {
return VMM_EFAIL;
}
if ((rc = vmm_rtcdev_get_time(rdev, &tm))) {
return rc;
}
if ((rc = vmm_wallclock_get_timezone(&tz))) {
return rc;
}
utc_tz.tz_minuteswest = 0;
utc_tz.tz_dsttime = 0;
tv.tv_sec = vmm_wallclock_mktime(tm.tm_year + 1900,
tm.tm_mon + 1,
tm.tm_mday,
tm.tm_hour,
tm.tm_min,
tm.tm_sec);
tv.tv_nsec = 0;
if ((rc = vmm_wallclock_set_timeofday(&tv, &utc_tz))) {
return rc;
}
if ((rc = vmm_wallclock_set_timezone(&tz))) {
return rc;
}
return VMM_OK;
}
int cmd_rtcdev_get_time(struct vmm_chardev *cdev, const char * name)
{
int rc;
struct vmm_rtc_time tm;
struct vmm_rtcdev * rtc = vmm_rtcdev_find(name);
if (!rtc) {
vmm_cprintf(cdev, "Error: cannot find rtc %s\n", name);
return VMM_EFAIL;
}
rc = vmm_rtcdev_get_time(rtc, &tm);
if (rc) {
vmm_cprintf(cdev, "Error: get_time failed for rtc %s\n", name);
return rc;
}
switch (tm.tm_wday) {
case 0:
vmm_cprintf(cdev, "%s ", "Sun");
break;
case 1:
vmm_cprintf(cdev, "%s ", "Mon");
break;
case 2:
vmm_cprintf(cdev, "%s ", "Tue");
break;
case 3:
vmm_cprintf(cdev, "%s ", "Wed");
break;
case 4:
vmm_cprintf(cdev, "%s ", "Thu");
break;
case 5:
vmm_cprintf(cdev, "%s ", "Fri");
break;
case 6:
vmm_cprintf(cdev, "%s ", "Sat");
break;
default:
vmm_cprintf(cdev, "Error: Invalid day of week\n");
};
switch (tm.tm_mon) {
case 0:
vmm_cprintf(cdev, "%s ", "Jan");
break;
case 1:
vmm_cprintf(cdev, "%s ", "Feb");
break;
case 2:
vmm_cprintf(cdev, "%s ", "Mar");
break;
case 3:
vmm_cprintf(cdev, "%s ", "Apr");
break;
case 4:
vmm_cprintf(cdev, "%s ", "May");
break;
case 5:
vmm_cprintf(cdev, "%s ", "Jun");
break;
case 6:
vmm_cprintf(cdev, "%s ", "Jul");
break;
case 7:
vmm_cprintf(cdev, "%s ", "Aug");
break;
case 8:
vmm_cprintf(cdev, "%s ", "Sep");
break;
case 9:
vmm_cprintf(cdev, "%s ", "Oct");
break;
case 10:
vmm_cprintf(cdev, "%s ", "Nov");
break;
case 11:
vmm_cprintf(cdev, "%s ", "Dec");
break;
default:
vmm_cprintf(cdev, "Error: Invalid month\n");
};
vmm_cprintf(cdev, "%2d %d:%d:%d UTC %d", tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec,
tm.tm_year + 1900);
vmm_cprintf(cdev, "\n");
return VMM_OK;
}
