291 lines
7.2 KiB
C
291 lines
7.2 KiB
C
/*
|
|
* Copyright (c) 2006-2023, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
* 2018-01-30 armink the first version
|
|
*/
|
|
|
|
#include <sys/time.h>
|
|
#include <string.h>
|
|
#include <rtthread.h>
|
|
#include <rtdevice.h>
|
|
|
|
#ifdef RT_USING_KTIME
|
|
#include <ktime.h>
|
|
#endif
|
|
|
|
#ifdef RT_USING_SOFT_RTC
|
|
|
|
/* 2018-01-30 14:44:50 = RTC_TIME_INIT(2018, 1, 30, 14, 44, 50) */
|
|
#define RTC_TIME_INIT(year, month, day, hour, minute, second) \
|
|
{.tm_year = year - 1900, .tm_mon = month - 1, .tm_mday = day, .tm_hour = hour, .tm_min = minute, .tm_sec = second}
|
|
|
|
#ifndef SOFT_RTC_TIME_DEFAULT
|
|
#define SOFT_RTC_TIME_DEFAULT RTC_TIME_INIT(2018, 1, 1, 0, 0 ,0)
|
|
#endif
|
|
|
|
#ifndef RTC_AUTO_SYNC_FIRST_DELAY
|
|
#define RTC_AUTO_SYNC_FIRST_DELAY 25
|
|
#endif
|
|
#ifndef RTC_AUTO_SYNC_PERIOD
|
|
#define RTC_AUTO_SYNC_PERIOD 3600
|
|
#endif
|
|
|
|
static struct rt_work rtc_sync_work;
|
|
static rt_device_t source_device = RT_NULL;
|
|
|
|
static struct rt_device soft_rtc_dev;
|
|
static rt_tick_t init_tick;
|
|
static time_t init_time;
|
|
|
|
#ifdef RT_USING_KTIME
|
|
static struct timeval init_tv = {0};
|
|
static struct timespec init_ts = {0};
|
|
#endif
|
|
|
|
#ifdef RT_USING_ALARM
|
|
|
|
static struct rt_rtc_wkalarm wkalarm;
|
|
static struct rt_timer alarm_time;
|
|
|
|
static void alarm_timeout(void *param)
|
|
{
|
|
rt_alarm_update(param, 1);
|
|
}
|
|
|
|
static void soft_rtc_alarm_update(struct rt_rtc_wkalarm *palarm)
|
|
{
|
|
rt_tick_t next_tick;
|
|
|
|
if (palarm->enable)
|
|
{
|
|
next_tick = RT_TICK_PER_SECOND;
|
|
rt_timer_control(&alarm_time, RT_TIMER_CTRL_SET_TIME, &next_tick);
|
|
rt_timer_start(&alarm_time);
|
|
}
|
|
else
|
|
{
|
|
rt_timer_stop(&alarm_time);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static void set_rtc_time(time_t t)
|
|
{
|
|
init_time = t - (rt_tick_get() - init_tick) / RT_TICK_PER_SECOND;
|
|
#ifdef RT_USING_ALARM
|
|
soft_rtc_alarm_update(&wkalarm);
|
|
#endif
|
|
}
|
|
|
|
static void _source_device_control(int cmd, void *args)
|
|
{
|
|
if (source_device == RT_NULL)
|
|
return;
|
|
|
|
if (rt_device_open(source_device, 0) == RT_EOK)
|
|
{
|
|
rt_device_control(source_device, cmd, args);
|
|
rt_device_close(source_device);
|
|
}
|
|
}
|
|
|
|
static rt_err_t soft_rtc_control(rt_device_t dev, int cmd, void *args)
|
|
{
|
|
time_t *t;
|
|
#ifdef RT_USING_KTIME
|
|
struct timeval *tv;
|
|
struct timespec *ts;
|
|
struct timeval _tv;
|
|
struct timespec _ts;
|
|
#endif
|
|
struct tm time_temp;
|
|
|
|
RT_ASSERT(dev != RT_NULL);
|
|
rt_memset(&time_temp, 0, sizeof(struct tm));
|
|
|
|
switch (cmd)
|
|
{
|
|
case RT_DEVICE_CTRL_RTC_GET_TIME:
|
|
t = (time_t *) args;
|
|
*t = init_time + (rt_tick_get() - init_tick) / RT_TICK_PER_SECOND;
|
|
break;
|
|
case RT_DEVICE_CTRL_RTC_SET_TIME:
|
|
{
|
|
t = (time_t *) args;
|
|
set_rtc_time(*t);
|
|
_source_device_control(RT_DEVICE_CTRL_RTC_SET_TIME, t);
|
|
break;
|
|
}
|
|
#ifdef RT_USING_ALARM
|
|
case RT_DEVICE_CTRL_RTC_GET_ALARM:
|
|
*((struct rt_rtc_wkalarm *)args) = wkalarm;
|
|
break;
|
|
case RT_DEVICE_CTRL_RTC_SET_ALARM:
|
|
wkalarm = *((struct rt_rtc_wkalarm *)args);
|
|
soft_rtc_alarm_update(&wkalarm);
|
|
break;
|
|
#endif
|
|
#ifdef RT_USING_KTIME
|
|
case RT_DEVICE_CTRL_RTC_GET_TIMEVAL:
|
|
tv = (struct timeval *)args;
|
|
rt_ktime_boottime_get_us(&_tv);
|
|
tv->tv_sec = init_time + (rt_tick_get() - init_tick) / RT_TICK_PER_SECOND;
|
|
tv->tv_usec = init_tv.tv_usec + _tv.tv_usec;
|
|
break;
|
|
case RT_DEVICE_CTRL_RTC_SET_TIMEVAL:
|
|
tv = (struct timeval *)args;
|
|
rt_ktime_boottime_get_us(&_tv);
|
|
set_rtc_time(tv->tv_sec);
|
|
init_tv.tv_usec = tv->tv_usec - _tv.tv_usec;
|
|
_source_device_control(RT_DEVICE_CTRL_RTC_SET_TIME, &(tv->tv_sec));
|
|
break;
|
|
case RT_DEVICE_CTRL_RTC_GET_TIMESPEC:
|
|
ts = (struct timespec *)args;
|
|
rt_ktime_boottime_get_ns(&_ts);
|
|
ts->tv_sec = init_time + (rt_tick_get() - init_tick) / RT_TICK_PER_SECOND;
|
|
ts->tv_nsec = init_ts.tv_nsec + _ts.tv_nsec;
|
|
break;
|
|
case RT_DEVICE_CTRL_RTC_SET_TIMESPEC:
|
|
ts = (struct timespec *)args;
|
|
rt_ktime_boottime_get_ns(&_ts);
|
|
set_rtc_time(ts->tv_sec);
|
|
init_ts.tv_nsec = ts->tv_nsec - _ts.tv_nsec;
|
|
_source_device_control(RT_DEVICE_CTRL_RTC_SET_TIME, &(ts->tv_sec));
|
|
break;
|
|
case RT_DEVICE_CTRL_RTC_GET_TIMERES:
|
|
ts = (struct timespec *)args;
|
|
ts->tv_sec = 0;
|
|
ts->tv_nsec = (rt_ktime_cputimer_getres() / RT_KTIME_RESMUL);
|
|
break;
|
|
#endif
|
|
default:
|
|
return -RT_EINVAL;
|
|
}
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
const static struct rt_device_ops soft_rtc_ops =
|
|
{
|
|
RT_NULL,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
RT_NULL,
|
|
soft_rtc_control
|
|
};
|
|
#endif
|
|
|
|
static int rt_soft_rtc_init(void)
|
|
{
|
|
static rt_bool_t init_ok = RT_FALSE;
|
|
struct tm time_new = SOFT_RTC_TIME_DEFAULT;
|
|
|
|
if (init_ok)
|
|
{
|
|
return 0;
|
|
}
|
|
/* make sure only one 'rtc' device */
|
|
RT_ASSERT(!rt_device_find("rtc"));
|
|
|
|
#ifdef RT_USING_ALARM
|
|
rt_timer_init(&alarm_time,
|
|
"alarm",
|
|
alarm_timeout,
|
|
&soft_rtc_dev,
|
|
0,
|
|
RT_TIMER_FLAG_SOFT_TIMER|RT_TIMER_FLAG_ONE_SHOT);
|
|
#endif
|
|
|
|
init_tick = rt_tick_get();
|
|
init_time = timegm(&time_new);
|
|
|
|
soft_rtc_dev.type = RT_Device_Class_RTC;
|
|
|
|
/* register rtc device */
|
|
#ifdef RT_USING_DEVICE_OPS
|
|
soft_rtc_dev.ops = &soft_rtc_ops;
|
|
#else
|
|
soft_rtc_dev.init = RT_NULL;
|
|
soft_rtc_dev.open = RT_NULL;
|
|
soft_rtc_dev.close = RT_NULL;
|
|
soft_rtc_dev.read = RT_NULL;
|
|
soft_rtc_dev.write = RT_NULL;
|
|
soft_rtc_dev.control = soft_rtc_control;
|
|
#endif
|
|
|
|
/* no private */
|
|
soft_rtc_dev.user_data = RT_NULL;
|
|
|
|
rt_device_register(&soft_rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR);
|
|
|
|
init_ok = RT_TRUE;
|
|
|
|
return 0;
|
|
}
|
|
INIT_DEVICE_EXPORT(rt_soft_rtc_init);
|
|
|
|
#ifdef RT_USING_SYSTEM_WORKQUEUE
|
|
|
|
rt_err_t rt_soft_rtc_sync()
|
|
{
|
|
time_t time = 0;
|
|
|
|
if (source_device == RT_NULL)
|
|
{
|
|
rt_kprintf("error: rtc source not found, please set it!!!\n");
|
|
return RT_ENOSYS;
|
|
}
|
|
|
|
_source_device_control(RT_DEVICE_CTRL_RTC_GET_TIME, &time);
|
|
set_rtc_time(time);
|
|
return RT_EOK;
|
|
}
|
|
|
|
static void rtc_sync_work_func(struct rt_work *work, void *work_data)
|
|
{
|
|
rt_soft_rtc_sync();
|
|
rt_work_submit(work, rt_tick_from_millisecond(RTC_AUTO_SYNC_PERIOD * 1000));
|
|
}
|
|
|
|
rt_err_t rt_soft_rtc_set_source(const char *name)
|
|
{
|
|
RT_ASSERT(name != RT_NULL);
|
|
RT_ASSERT(rt_device_find(name)); // make sure source is exist
|
|
|
|
source_device = rt_device_find(name);
|
|
rt_work_init(&rtc_sync_work, rtc_sync_work_func, RT_NULL);
|
|
rt_work_submit(&rtc_sync_work, rt_tick_from_millisecond(RTC_AUTO_SYNC_FIRST_DELAY * 1000));
|
|
|
|
return RT_EOK;
|
|
}
|
|
|
|
#ifdef FINSH_USING_MSH
|
|
#include <finsh.h>
|
|
static void cmd_rtc_sync(int argc, char **argv)
|
|
{
|
|
struct timeval tv = {0};
|
|
struct timezone tz = {0};
|
|
time_t now = (time_t)0;
|
|
|
|
rt_soft_rtc_sync();
|
|
|
|
gettimeofday(&tv, &tz);
|
|
now = tv.tv_sec;
|
|
/* output current time */
|
|
rt_kprintf("local time: %.*s", 25, ctime(&now));
|
|
rt_kprintf("timestamps: %ld\n", (long)tv.tv_sec);
|
|
}
|
|
MSH_CMD_EXPORT_ALIAS(cmd_rtc_sync, rtc_sync, Update time by real rtc);
|
|
#endif
|
|
|
|
#endif /* RT_USING_SYSTEM_WORKQUEUE */
|
|
|
|
#endif /* RT_USING_SOFT_RTC */
|