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[components][rtc] Add RTC framework V2.0 to simplify RTC registration process

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This commit is contained in:
iysheng
2021-07-08 22:41:06 +08:00
parent 2fda55d898
commit a2a7f3c2d9
7 changed files with 175 additions and 8 deletions
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components/libc/compilers/common/time.c
+9
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@@ -473,12 +473,17 @@ static int clock_time_system_init()
rt_device_t device;
time = 0;
#ifdef RT_USING_RTC
device = rt_device_find("rtc");
if (device != RT_NULL)
{
/* get realtime seconds */
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time);
}
#else
LOG_W("Cannot find a RTC device to provide time!");
#endif
/* get tick */
tick = rt_tick_get();
@@ -591,6 +596,7 @@ int clock_settime(clockid_t clockid, const struct timespec *tp)
_timevalue.tv_usec = MICROSECOND_PER_SECOND - (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
_timevalue.tv_sec = second - tick/RT_TICK_PER_SECOND - 1;
#ifdef RT_USING_RTC
/* update for RTC device */
device = rt_device_find("rtc");
if (device != RT_NULL)
@@ -599,6 +605,9 @@ int clock_settime(clockid_t clockid, const struct timespec *tp)
rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &second);
}
else
#else
LOG_W("Cannot find a RTC device to save time!");
#endif
return -1;
return 0;