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andy
2025-06-13 14:38:32 +08:00
parent caf2d9f0c5
commit 160f9f8201
1809 changed files with 648100 additions and 10 deletions
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65
riscv/rtthread/components/drivers/rtc/README.md Executable file
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# RT-Thread RTC 设备
## 1、介绍
RT-Thread 的 RTC （实时时钟）设备为操作系统的时间系统提供了基础服务。面对越来越多的 IoT 场景，RTC 已经成为产品的标配，甚至在诸如 SSL 的安全传输过程中，RTC 已经成为不可或缺的部分。
## 2、使用
应用层对于 RTC 设备一般不存在直接调用的 API ，如果使用到 C 标准库中的时间 API （目前主要是获取当前时间的 `time_t time(time_t *t)`），则会间接通过设备的 control 接口完成交互。
> 注意：目前系统内只允许存在一个 RTC 设备，且名称为 `"rtc"` 。
### 2.1 设置日期
```C
rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day)
```
|参数 |描述|
|:----- |:----|
|year |待设置生效的年份|
|month |待设置生效的月份|
|day |待设置生效的日|
### 2.2 设置时间
```C
rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second)
```
|参数 |描述|
|:----- |:----|
|hour |待设置生效的时|
|minute |待设置生效的分|
|second |待设置生效的秒|
### 2.3 使用 Finsh/MSH 命令 查看/设置 日期和时间
#### 2.3.1 查看日期和时间
输入 `date` 即可，大致效果如下：
```
msh />date
Fri Feb 16 01:11:56 2018
msh />
```
#### 2.3.2 设置日期和时间
同样使用 `date` 命令，在命令后面再依次输入 `年` `月` `日` `时` `分` `秒` （中间空格隔开, 24H 制），大致效果如下：
```
msh />date 2018 02 16 01 15 30 # 设置当前时间为 2018-02-16 01:15:30
msh />
```
### 2.4 启用 Soft RTC （软件模拟 RTC）
这个模式非常适用于对时间精度要求不高，没有硬件 RTC 的产品。
#### 2.4.1 使用方法
在 menuconfig 中启用 `RT_USING_SOFT_RTC` 配置。

18
riscv/rtthread/components/drivers/rtc/SConscript Executable file
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from building import *
cwd = GetCurrentDir()
src = []
CPPPATH = [cwd + '/../include']
group = []
if GetDepend(['RT_USING_RTC']):
src = src + ['rtc.c']
if GetDepend(['RT_USING_ALARM']):
src = src + ['alarm.c']
if GetDepend(['RT_USING_SOFT_RTC']):
src = src + ['soft_rtc.c']
group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_RTC'], CPPPATH = CPPPATH)
Return('group')

800
riscv/rtthread/components/drivers/rtc/alarm.c Executable file
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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2012-10-27 heyuanjie87 first version.
* 2013-05-17 aozima initial alarm event & mutex in system init.
* 2020-10-15 zhangsz add alarm flags hour minute second.
* 2020-11-09 zhangsz fix alarm set when modify rtc time.
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <sys/time.h>
#define RT_RTC_YEARS_MAX 137
#ifdef RT_USING_SOFT_RTC
#define RT_ALARM_DELAY 0
#else
#define RT_ALARM_DELAY 2
#endif
#if (defined(RT_USING_RTC) && defined(RT_USING_ALARM))
static struct rt_alarm_container _container;
rt_inline rt_uint32_t alarm_mkdaysec(struct tm *time)
{
rt_uint32_t sec;
sec = time->tm_sec;
sec += time->tm_min * 60;
sec += time->tm_hour * 3600;
return (sec);
}
static rt_err_t alarm_set(struct rt_alarm *alarm)
{
rt_device_t device;
struct rt_rtc_wkalarm wkalarm;
rt_err_t ret;
device = rt_device_find("rtc");
if (device == RT_NULL)
{
return (RT_ERROR);
}
if (alarm->flag & RT_ALARM_STATE_START)
wkalarm.enable = RT_TRUE;
else
wkalarm.enable = RT_FALSE;
wkalarm.tm_sec = alarm->wktime.tm_sec;
wkalarm.tm_min = alarm->wktime.tm_min;
wkalarm.tm_hour = alarm->wktime.tm_hour;
wkalarm.tm_mday = alarm->wktime.tm_mday;
wkalarm.tm_mon = alarm->wktime.tm_mon;
wkalarm.tm_year = alarm->wktime.tm_year;
ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_ALARM, &wkalarm);
if ((ret == RT_EOK) && wkalarm.enable)
{
ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_ALARM, &wkalarm);
if (ret == RT_EOK)
{
/*
some RTC device like RX8025,it's alarms precision is 1 minute.
in this case,low level RTC driver should set wkalarm->tm_sec to 0.
*/
alarm->wktime.tm_sec = wkalarm.tm_sec;
alarm->wktime.tm_min = wkalarm.tm_min;
alarm->wktime.tm_hour = wkalarm.tm_hour;
alarm->wktime.tm_mday = wkalarm.tm_mday;
alarm->wktime.tm_mon = wkalarm.tm_mon;
alarm->wktime.tm_year = wkalarm.tm_year;
}
}
return (ret);
}
static void alarm_wakeup(struct rt_alarm *alarm, struct tm *now)
{
rt_uint32_t sec_alarm, sec_now;
rt_bool_t wakeup = RT_FALSE;
time_t timestamp;
sec_alarm = alarm_mkdaysec(&alarm->wktime);
sec_now = alarm_mkdaysec(now);
if (alarm->flag & RT_ALARM_STATE_START)
{
switch (alarm->flag & 0xFF00)
{
case RT_ALARM_ONESHOT:
{
sec_alarm = timegm(&alarm->wktime);
sec_now = timegm(now);
if (((sec_now - sec_alarm) <= RT_ALARM_DELAY) && (sec_now >= sec_alarm))
{
/* stop alarm */
alarm->flag &= ~RT_ALARM_STATE_START;
alarm_set(alarm);
wakeup = RT_TRUE;
}
}
break;
case RT_ALARM_SECOND:
{
alarm->wktime.tm_hour = now->tm_hour;
alarm->wktime.tm_min = now->tm_min;
alarm->wktime.tm_sec = now->tm_sec + 1;
if (alarm->wktime.tm_sec > 59)
{
alarm->wktime.tm_sec = 0;
alarm->wktime.tm_min = alarm->wktime.tm_min + 1;
if (alarm->wktime.tm_min > 59)
{
alarm->wktime.tm_min = 0;
alarm->wktime.tm_hour = alarm->wktime.tm_hour + 1;
if (alarm->wktime.tm_hour > 23)
{
alarm->wktime.tm_hour = 0;
}
}
}
wakeup = RT_TRUE;
}
break;
case RT_ALARM_MINUTE:
{
alarm->wktime.tm_hour = now->tm_hour;
if (alarm->wktime.tm_sec == now->tm_sec)
{
alarm->wktime.tm_min = now->tm_min + 1;
if (alarm->wktime.tm_min > 59)
{
alarm->wktime.tm_min = 0;
alarm->wktime.tm_hour = alarm->wktime.tm_hour + 1;
if (alarm->wktime.tm_hour > 23)
{
alarm->wktime.tm_hour = 0;
}
}
wakeup = RT_TRUE;
}
}
break;
case RT_ALARM_HOUR:
{
if ((alarm->wktime.tm_min == now->tm_min) &&
(alarm->wktime.tm_sec == now->tm_sec))
{
alarm->wktime.tm_hour = now->tm_hour + 1;
if (alarm->wktime.tm_hour > 23)
{
alarm->wktime.tm_hour = 0;
}
wakeup = RT_TRUE;
}
}
break;
case RT_ALARM_DAILY:
{
if (((sec_now - sec_alarm) <= RT_ALARM_DELAY) && (sec_now >= sec_alarm))
wakeup = RT_TRUE;
}
break;
case RT_ALARM_WEEKLY:
{
/* alarm at wday */
if (alarm->wktime.tm_wday == now->tm_wday)
{
sec_alarm += alarm->wktime.tm_wday * 24 * 3600;
sec_now += now->tm_wday * 24 * 3600;
if (sec_now == sec_alarm)
wakeup = RT_TRUE;
}
}
break;
case RT_ALARM_MONTHLY:
{
/* monthly someday generate alarm signals */
if (alarm->wktime.tm_mday == now->tm_mday)
{
if ((sec_now - sec_alarm) <= RT_ALARM_DELAY)
wakeup = RT_TRUE;
}
}
break;
case RT_ALARM_YAERLY:
{
if ((alarm->wktime.tm_mday == now->tm_mday) && \
(alarm->wktime.tm_mon == now->tm_mon))
{
if ((sec_now - sec_alarm) <= RT_ALARM_DELAY)
wakeup = RT_TRUE;
}
}
break;
}
if ((wakeup == RT_TRUE) && (alarm->callback != RT_NULL))
{
timestamp = (time_t)0;
get_timestamp(&timestamp);
alarm->callback(alarm, timestamp);
}
}
}
static void alarm_update(rt_uint32_t event)
{
struct rt_alarm *alm_prev = RT_NULL, *alm_next = RT_NULL;
struct rt_alarm *alarm;
rt_int32_t sec_now, sec_alarm, sec_tmp;
rt_int32_t sec_next = 24 * 3600, sec_prev = 0;
time_t timestamp = (time_t)0;
struct tm now;
rt_list_t *next;
rt_mutex_take(&_container.mutex, RT_WAITING_FOREVER);
if (!rt_list_isempty(&_container.head))
{
/* get time of now */
get_timestamp(&timestamp);
gmtime_r(&timestamp, &now);
for (next = _container.head.next; next != &_container.head; next = next->next)
{
alarm = rt_list_entry(next, struct rt_alarm, list);
/* check the overtime alarm */
alarm_wakeup(alarm, &now);
}
/* get time of now */
get_timestamp(&timestamp);
gmtime_r(&timestamp, &now);
sec_now = alarm_mkdaysec(&now);
for (next = _container.head.next; next != &_container.head; next = next->next)
{
alarm = rt_list_entry(next, struct rt_alarm, list);
/* calculate seconds from 00:00:00 */
sec_alarm = alarm_mkdaysec(&alarm->wktime);
if (alarm->flag & RT_ALARM_STATE_START)
{
sec_tmp = sec_alarm - sec_now;
if (sec_tmp > 0)
{
/* find alarm after now(now to 23:59:59) and the most recent */
if (sec_tmp < sec_next)
{
sec_next = sec_tmp;
alm_next = alarm;
}
}
else
{
/* find alarm before now(00:00:00 to now) and furthest from now */
if (sec_tmp < sec_prev)
{
sec_prev = sec_tmp;
alm_prev = alarm;
}
}
}
}
/* enable the alarm after now first */
if (sec_next < 24 * 3600)
{
if (alarm_set(alm_next) == RT_EOK)
_container.current = alm_next;
}
else if (sec_prev < 0)
{
/* enable the alarm before now */
if (alarm_set(alm_prev) == RT_EOK)
_container.current = alm_prev;
}
else
{
if (_container.current != RT_NULL)
{
alarm_set(_container.current);
if (!(_container.current->flag & RT_ALARM_STATE_START))
_container.current = RT_NULL;
}
}
}
rt_mutex_release(&_container.mutex);
}
static int days_of_year_month(int tm_year, int tm_mon)
{
int ret, year;
year = tm_year + 1900;
if (tm_mon == 1)
{
ret = 28 + ((!(year % 4) && (year % 100)) || !(year % 400));
}
else if (((tm_mon <= 6) && (tm_mon % 2 == 0)) || ((tm_mon > 6) && (tm_mon % 2 == 1)))
{
ret = 31;
}
else
{
ret = 30;
}
return (ret);
}
static rt_bool_t is_valid_date(struct tm *date)
{
if ((date->tm_year < 0) || (date->tm_year > RT_RTC_YEARS_MAX))
{
return (RT_FALSE);
}
if ((date->tm_mon < 0) || (date->tm_mon > 11))
{
return (RT_FALSE);
}
if ((date->tm_mday < 1) || \
(date->tm_mday > days_of_year_month(date->tm_year, date->tm_mon)))
{
return (RT_FALSE);
}
return (RT_TRUE);
}
static rt_err_t alarm_setup(rt_alarm_t alarm, struct tm *wktime)
{
rt_err_t ret = -RT_ERROR;
time_t timestamp = (time_t)0;
struct tm *setup, now;
setup = &alarm->wktime;
*setup = *wktime;
/* get time of now */
get_timestamp(&timestamp);
gmtime_r(&timestamp, &now);
/* if these are a "don't care" value,we set them to now*/
if ((setup->tm_sec > 59) || (setup->tm_sec < 0))
setup->tm_sec = now.tm_sec;
if ((setup->tm_min > 59) || (setup->tm_min < 0))
setup->tm_min = now.tm_min;
if ((setup->tm_hour > 23) || (setup->tm_hour < 0))
setup->tm_hour = now.tm_hour;
switch (alarm->flag & 0xFF00)
{
case RT_ALARM_SECOND:
{
alarm->wktime.tm_hour = now.tm_hour;
alarm->wktime.tm_min = now.tm_min;
alarm->wktime.tm_sec = now.tm_sec + 1;
if (alarm->wktime.tm_sec > 59)
{
alarm->wktime.tm_sec = 0;
alarm->wktime.tm_min = alarm->wktime.tm_min + 1;
if (alarm->wktime.tm_min > 59)
{
alarm->wktime.tm_min = 0;
alarm->wktime.tm_hour = alarm->wktime.tm_hour + 1;
if (alarm->wktime.tm_hour > 23)
{
alarm->wktime.tm_hour = 0;
}
}
}
}
break;
case RT_ALARM_MINUTE:
{
alarm->wktime.tm_hour = now.tm_hour;
alarm->wktime.tm_min = now.tm_min + 1;
if (alarm->wktime.tm_min > 59)
{
alarm->wktime.tm_min = 0;
alarm->wktime.tm_hour = alarm->wktime.tm_hour + 1;
if (alarm->wktime.tm_hour > 23)
{
alarm->wktime.tm_hour = 0;
}
}
}
break;
case RT_ALARM_HOUR:
{
alarm->wktime.tm_hour = now.tm_hour + 1;
if (alarm->wktime.tm_hour > 23)
{
alarm->wktime.tm_hour = 0;
}
}
break;
case RT_ALARM_DAILY:
{
/* do nothing but needed */
}
break;
case RT_ALARM_ONESHOT:
{
/* if these are "don't care" value we set them to now */
if (setup->tm_year == RT_ALARM_TM_NOW)
setup->tm_year = now.tm_year;
if (setup->tm_mon == RT_ALARM_TM_NOW)
setup->tm_mon = now.tm_mon;
if (setup->tm_mday == RT_ALARM_TM_NOW)
setup->tm_mday = now.tm_mday;
/* make sure the setup is valid */
if (!is_valid_date(setup))
goto _exit;
}
break;
case RT_ALARM_WEEKLY:
{
/* if tm_wday is a "don't care" value we set it to now */
if ((setup->tm_wday < 0) || (setup->tm_wday > 6))
setup->tm_wday = now.tm_wday;
}
break;
case RT_ALARM_MONTHLY:
{
/* if tm_mday is a "don't care" value we set it to now */
if ((setup->tm_mday < 1) || (setup->tm_mday > 31))
setup->tm_mday = now.tm_mday;
}
break;
case RT_ALARM_YAERLY:
{
/* if tm_mon is a "don't care" value we set it to now */
if ((setup->tm_mon < 0) || (setup->tm_mon > 11))
setup->tm_mon = now.tm_mon;
if (setup->tm_mon == 1)
{
/* tm_mon is February */
/* tm_mday should be 1~29.otherwise,it's a "don't care" value */
if ((setup->tm_mday < 1) || (setup->tm_mday > 29))
setup->tm_mday = now.tm_mday;
}
else if (((setup->tm_mon <= 6) && (setup->tm_mon % 2 == 0)) || \
((setup->tm_mon > 6) && (setup->tm_mon % 2 == 1)))
{
/* Jan,Mar,May,Jul,Aug,Oct,Dec */
/* tm_mday should be 1~31.otherwise,it's a "don't care" value */
if ((setup->tm_mday < 1) || (setup->tm_mday > 31))
setup->tm_mday = now.tm_mday;
}
else
{
/* tm_mday should be 1~30.otherwise,it's a "don't care" value */
if ((setup->tm_mday < 1) || (setup->tm_mday > 30))
setup->tm_mday = now.tm_mday;
}
}
break;
default:
{
goto _exit;
}
}
if ((setup->tm_hour == 23) && (setup->tm_min == 59) && (setup->tm_sec == 59))
{
/*
for insurance purposes, we will generate an alarm
signal two seconds ahead of.
*/
setup->tm_sec = 60 - RT_ALARM_DELAY;
}
/* set initialized state */
alarm->flag |= RT_ALARM_STATE_INITED;
ret = RT_EOK;
_exit:
return (ret);
}
/** \brief send a rtc alarm event
*
* \param dev pointer to RTC device(currently unused,you can ignore it)
* \param event RTC event(currently unused)
* \return none
*/
void rt_alarm_update(rt_device_t dev, rt_uint32_t event)
{
rt_event_send(&_container.event, 1);
}
/** \brief modify the alarm setup
*
* \param alarm pointer to alarm
* \param cmd control command
* \param arg argument
*/
rt_err_t rt_alarm_control(rt_alarm_t alarm, int cmd, void *arg)
{
rt_err_t ret = -RT_ERROR;
RT_ASSERT(alarm != RT_NULL);
rt_mutex_take(&_container.mutex, RT_WAITING_FOREVER);
switch (cmd)
{
case RT_ALARM_CTRL_MODIFY:
{
struct rt_alarm_setup *setup;
RT_ASSERT(arg != RT_NULL);
setup = arg;
rt_alarm_stop(alarm);
alarm->flag = setup->flag & 0xFF00;
alarm->wktime = setup->wktime;
ret = alarm_setup(alarm, &alarm->wktime);
}
break;
}
rt_mutex_release(&_container.mutex);
return (ret);
}
/** \brief start an alarm
*
* \param alarm pointer to alarm
* \return RT_EOK
*/
rt_err_t rt_alarm_start(rt_alarm_t alarm)
{
rt_int32_t sec_now, sec_old, sec_new;
rt_err_t ret = RT_EOK;
time_t timestamp = (time_t)0;
struct tm now;
if (alarm == RT_NULL)
return (RT_ERROR);
rt_mutex_take(&_container.mutex, RT_WAITING_FOREVER);
if (!(alarm->flag & RT_ALARM_STATE_START))
{
if (alarm_setup(alarm, &alarm->wktime) != RT_EOK)
{
ret = -RT_ERROR;
goto _exit;
}
/* get time of now */
get_timestamp(&timestamp);
gmtime_r(&timestamp, &now);
alarm->flag |= RT_ALARM_STATE_START;
/* set alarm */
if (_container.current == RT_NULL)
{
ret = alarm_set(alarm);
}
else
{
sec_now = alarm_mkdaysec(&now);
sec_old = alarm_mkdaysec(&_container.current->wktime);
sec_new = alarm_mkdaysec(&alarm->wktime);
if ((sec_new < sec_old) && (sec_new > sec_now))
{
ret = alarm_set(alarm);
}
else if ((sec_new > sec_now) && (sec_old < sec_now))
{
ret = alarm_set(alarm);
}
else if ((sec_new < sec_old) && (sec_old < sec_now))
{
ret = alarm_set(alarm);
}
else
{
ret = RT_EOK;
goto _exit;
}
}
if (ret == RT_EOK)
{
_container.current = alarm;
}
}
_exit:
rt_mutex_release(&_container.mutex);
return (ret);
}
/** \brief stop an alarm
*
* \param alarm pointer to alarm
* \return RT_EOK
*/
rt_err_t rt_alarm_stop(rt_alarm_t alarm)
{
rt_err_t ret = RT_EOK;
if (alarm == RT_NULL)
return (RT_ERROR);
rt_mutex_take(&_container.mutex, RT_WAITING_FOREVER);
if (!(alarm->flag & RT_ALARM_STATE_START))
goto _exit;
/* stop alarm */
alarm->flag &= ~RT_ALARM_STATE_START;
if (_container.current == alarm)
{
ret = alarm_set(alarm);
_container.current = RT_NULL;
}
if (ret == RT_EOK)
alarm_update(0);
_exit:
rt_mutex_release(&_container.mutex);
return (ret);
}
/** \brief delete an alarm
*
* \param alarm pointer to alarm
* \return RT_EOK
*/
rt_err_t rt_alarm_delete(rt_alarm_t alarm)
{
rt_err_t ret = RT_EOK;
if (alarm == RT_NULL)
return -RT_ERROR;
rt_mutex_take(&_container.mutex, RT_WAITING_FOREVER);
/* stop the alarm */
alarm->flag &= ~RT_ALARM_STATE_START;
if (_container.current == alarm)
{
ret = alarm_set(alarm);
_container.current = RT_NULL;
/* set new alarm if necessary */
alarm_update(0);
}
rt_list_remove(&alarm->list);
rt_free(alarm);
rt_mutex_release(&_container.mutex);
return (ret);
}
/** \brief create an alarm
*
* \param flag set alarm mode e.g: RT_ALARM_DAILY
* \param setup pointer to setup infomation
*/
rt_alarm_t rt_alarm_create(rt_alarm_callback_t callback, struct rt_alarm_setup *setup)
{
struct rt_alarm *alarm;
if (setup == RT_NULL)
return (RT_NULL);
alarm = rt_malloc(sizeof(struct rt_alarm));
if (alarm == RT_NULL)
return (RT_NULL);
rt_list_init(&alarm->list);
alarm->wktime = setup->wktime;
alarm->flag = setup->flag & 0xFF00;
alarm->callback = callback;
rt_mutex_take(&_container.mutex, RT_WAITING_FOREVER);
rt_list_insert_after(&_container.head, &alarm->list);
rt_mutex_release(&_container.mutex);
return (alarm);
}
/** \brief rtc alarm service thread entry
*
*/
static void rt_alarmsvc_thread_init(void *param)
{
rt_uint32_t recv;
_container.current = RT_NULL;
while (1)
{
if (rt_event_recv(&_container.event, 0xFFFF,
RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR,
RT_WAITING_FOREVER, &recv) == RT_EOK)
{
alarm_update(recv);
}
}
}
struct _alarm_flag
{
const char* name;
rt_uint32_t flag;
};
static const struct _alarm_flag _alarm_flag_tbl[] =
{
{"N", 0xffff}, /* none */
{"O", RT_ALARM_ONESHOT}, /* only alarm once */
{"D", RT_ALARM_DAILY}, /* alarm everyday */
{"W", RT_ALARM_WEEKLY}, /* alarm weekly at Monday or Friday etc. */
{"Mo", RT_ALARM_MONTHLY}, /* alarm monthly at someday */
{"Y", RT_ALARM_YAERLY}, /* alarm yearly at a certain date */
{"H", RT_ALARM_HOUR}, /* alarm each hour at a certain min:second */
{"M", RT_ALARM_MINUTE}, /* alarm each minute at a certain second */
{"S", RT_ALARM_SECOND}, /* alarm each second */
};
static rt_uint8_t _alarm_flag_tbl_size = sizeof(_alarm_flag_tbl) / sizeof(_alarm_flag_tbl[0]);
static rt_uint8_t get_alarm_flag_index(rt_uint32_t alarm_flag)
{
for (rt_uint8_t index = 0; index < _alarm_flag_tbl_size; index++)
{
alarm_flag &= 0xff00;
if (alarm_flag == _alarm_flag_tbl[index].flag)
{
return index;
}
}
return 0;
}
void rt_alarm_dump(void)
{
rt_list_t *next;
rt_alarm_t alarm;
rt_kprintf("| hh:mm:ss | week | flag | en |\n");
rt_kprintf("+----------+------+------+----+\n");
for (next = _container.head.next; next != &_container.head; next = next->next)
{
alarm = rt_list_entry(next, struct rt_alarm, list);
rt_uint8_t flag_index = get_alarm_flag_index(alarm->flag);
rt_kprintf("| %02d:%02d:%02d | %2d | %2s | %2d |\n",
alarm->wktime.tm_hour, alarm->wktime.tm_min, alarm->wktime.tm_sec,
alarm->wktime.tm_wday, _alarm_flag_tbl[flag_index].name, alarm->flag & RT_ALARM_STATE_START);
}
rt_kprintf("+----------+------+------+----+\n");
}
MSH_CMD_EXPORT_ALIAS(rt_alarm_dump, list_alarm, list alarm info);
/** \brief initialize alarm service system
*
* \param none
* \return none
*/
int rt_alarm_system_init(void)
{
rt_thread_t tid;
rt_list_init(&_container.head);
rt_event_init(&_container.event, "alarmsvc", RT_IPC_FLAG_FIFO);
rt_mutex_init(&_container.mutex, "alarmsvc", RT_IPC_FLAG_PRIO);
tid = rt_thread_create("alarmsvc",
rt_alarmsvc_thread_init, RT_NULL,
2048, 10, 5);
if (tid != RT_NULL)
rt_thread_startup(tid);
return 0;
}
INIT_PREV_EXPORT(rt_alarm_system_init);
#endif

375
riscv/rtthread/components/drivers/rtc/rtc.c Executable file
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@@ -0,0 +1,375 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2012-01-29 aozima first version.
* 2012-04-12 aozima optimization: find rtc device only first.
* 2012-04-16 aozima add scheduler lock for set_date and set_time.
* 2018-02-16 armink add auto sync time by NTP
* 2021-05-09 Meco Man remove NTP
* 2021-06-11 iysheng implement RTC framework V2.0
* 2021-07-30 Meco Man move rtc_core.c to rtc.c
*/
#include <string.h>
#include <stdlib.h>
#include <rtthread.h>
#include <drivers/rtc.h>
#ifdef RT_USING_RTC
static rt_device_t _rtc_device;
/*
* This function initializes rtc_core
*/
static rt_err_t rt_rtc_init(struct rt_device *dev)
{
rt_rtc_dev_t *rtc_core;
RT_ASSERT(dev != RT_NULL);
rtc_core = (rt_rtc_dev_t *)dev;
if (rtc_core->ops->init)
{
return (rtc_core->ops->init());
}
return -RT_ENOSYS;
}
static rt_err_t rt_rtc_open(struct rt_device *dev, rt_uint16_t oflag)
{
return RT_EOK;
}
static rt_err_t rt_rtc_close(struct rt_device *dev)
{
/* Add close member function in rt_rtc_ops when need,
* then call that function here.
* */
return RT_EOK;
}
static rt_err_t rt_rtc_control(struct rt_device *dev, int cmd, void *args)
{
#define TRY_DO_RTC_FUNC(rt_rtc_dev, func_name, args) \
rt_rtc_dev->ops->func_name ? rt_rtc_dev->ops->func_name(args) : -RT_EINVAL;
rt_rtc_dev_t *rtc_device;
rt_err_t ret = -RT_EINVAL;
RT_ASSERT(dev != RT_NULL);
rtc_device = (rt_rtc_dev_t *)dev;
switch (cmd)
{
case RT_DEVICE_CTRL_RTC_GET_TIME:
ret = TRY_DO_RTC_FUNC(rtc_device, get_secs, args);
break;
case RT_DEVICE_CTRL_RTC_SET_TIME:
ret = TRY_DO_RTC_FUNC(rtc_device, set_secs, args);
break;
case RT_DEVICE_CTRL_RTC_GET_TIMEVAL:
ret = TRY_DO_RTC_FUNC(rtc_device, get_timeval, args);
break;
case RT_DEVICE_CTRL_RTC_SET_TIMEVAL:
ret = TRY_DO_RTC_FUNC(rtc_device, set_timeval, args);
break;
case RT_DEVICE_CTRL_RTC_GET_ALARM:
ret = TRY_DO_RTC_FUNC(rtc_device, get_alarm, args);
break;
case RT_DEVICE_CTRL_RTC_SET_ALARM:
ret = TRY_DO_RTC_FUNC(rtc_device, set_alarm, args);
break;
default:
break;
}
return ret;
#undef TRY_DO_RTC_FUNC
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops rtc_core_ops =
{
rt_rtc_init,
rt_rtc_open,
rt_rtc_close,
RT_NULL,
RT_NULL,
rt_rtc_control,
};
#endif /* RT_USING_DEVICE_OPS */
rt_err_t rt_hw_rtc_register(rt_rtc_dev_t *rtc,
const char *name,
rt_uint32_t flag,
void *data)
{
struct rt_device *device;
RT_ASSERT(rtc != RT_NULL);
device = &(rtc->parent);
device->type = RT_Device_Class_RTC;
device->rx_indicate = RT_NULL;
device->tx_complete = RT_NULL;
#ifdef RT_USING_DEVICE_OPS
device->ops = &rtc_core_ops;
#else
device->init = rt_rtc_init;
device->open = rt_rtc_open;
device->close = rt_rtc_close;
device->read = RT_NULL;
device->write = RT_NULL;
device->control = rt_rtc_control;
#endif /* RT_USING_DEVICE_OPS */
device->user_data = data;
/* register a character device */
return rt_device_register(device, name, flag);
}
/**
* Set system date(time not modify, local timezone).
*
* @param rt_uint32_t year e.g: 2012.
* @param rt_uint32_t month e.g: 12 (1~12).
* @param rt_uint32_t day e.g: 31.
*
* @return rt_err_t if set success, return RT_EOK.
*/
rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day)
{
time_t now, old_timestamp = 0;
struct tm tm_new = {0};
rt_err_t ret = -RT_ERROR;
if (_rtc_device == RT_NULL)
{
_rtc_device = rt_device_find("rtc");
if (_rtc_device == RT_NULL)
{
return -RT_ERROR;
}
}
/* get current time */
ret = rt_device_control(_rtc_device, RT_DEVICE_CTRL_RTC_GET_TIME, &old_timestamp);
if (ret != RT_EOK)
{
return ret;
}
/* converts calendar time into local time. */
localtime_r(&old_timestamp, &tm_new);
/* update date. */
tm_new.tm_year = year - 1900;
tm_new.tm_mon = month - 1; /* tm_mon: 0~11 */
tm_new.tm_mday = day;
/* converts the local time into the calendar time. */
now = mktime(&tm_new);
/* update to RTC device. */
ret = rt_device_control(_rtc_device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
return ret;
}
/**
* Set system time(date not modify, local timezone).
*
* @param rt_uint32_t hour e.g: 0~23.
* @param rt_uint32_t minute e.g: 0~59.
* @param rt_uint32_t second e.g: 0~59.
*
* @return rt_err_t if set success, return RT_EOK.
*/
rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second)
{
time_t now, old_timestamp = 0;
struct tm tm_new = {0};
rt_err_t ret = -RT_ERROR;
if (_rtc_device == RT_NULL)
{
_rtc_device = rt_device_find("rtc");
if (_rtc_device == RT_NULL)
{
return -RT_ERROR;
}
}
/* get current time */
ret = rt_device_control(_rtc_device, RT_DEVICE_CTRL_RTC_GET_TIME, &old_timestamp);
if (ret != RT_EOK)
{
return ret;
}
/* converts calendar time into local time. */
localtime_r(&old_timestamp, &tm_new);
/* update time. */
tm_new.tm_hour = hour;
tm_new.tm_min = minute;
tm_new.tm_sec = second;
/* converts the local time into the calendar time. */
now = mktime(&tm_new);
/* update to RTC device. */
ret = rt_device_control(_rtc_device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
return ret;
}
/**
* Set timestamp(UTC).
*
* @param time_t timestamp
*
* @return rt_err_t if set success, return RT_EOK.
*/
rt_err_t set_timestamp(time_t timestamp)
{
if (_rtc_device == RT_NULL)
{
_rtc_device = rt_device_find("rtc");
if (_rtc_device == RT_NULL)
{
return -RT_ERROR;
}
}
/* update to RTC device. */
return rt_device_control(_rtc_device, RT_DEVICE_CTRL_RTC_SET_TIME, &timestamp);
}
/**
* Get timestamp(UTC).
*
* @param time_t* timestamp
*
* @return rt_err_t if set success, return RT_EOK.
*/
rt_err_t get_timestamp(time_t *timestamp)
{
if (_rtc_device == RT_NULL)
{
_rtc_device = rt_device_find("rtc");
if (_rtc_device == RT_NULL)
{
return -RT_ERROR;
}
}
/* Get timestamp from RTC device. */
return rt_device_control(_rtc_device, RT_DEVICE_CTRL_RTC_GET_TIME, timestamp);
}
#ifdef RT_USING_FINSH
#include <finsh.h>
/**
* get date and time or set (local timezone) [year month day hour min sec]
*/
static void date(int argc, char **argv)
{
time_t now = (time_t)0;
if (argc == 1)
{
struct timeval tv = { 0 };
int32_t tz_offset_sec = 0;
uint32_t abs_tz_offset_sec = 0U;
#if defined(RT_LIBC_USING_LIGHT_TZ_DST)
tz_offset_sec = rt_tz_get();
#endif /* RT_LIBC_USING_LIGHT_TZ_DST */
gettimeofday(&tv, RT_NULL);
now = tv.tv_sec;
abs_tz_offset_sec = tz_offset_sec > 0 ? tz_offset_sec : -tz_offset_sec;
/* output current time */
rt_kprintf("local time: %.*s", 25U, ctime(&now));
rt_kprintf("timestamps: %ld\n", (long)tv.tv_sec);
rt_kprintf("timezone: UTC%c%02d:%02d:%02d\n",
tz_offset_sec > 0 ? '+' : '-', abs_tz_offset_sec / 3600U, abs_tz_offset_sec % 3600U / 60U, abs_tz_offset_sec % 3600U % 60U);
}
else if (argc >= 7)
{
/* set time and date */
struct tm tm_new = {0};
time_t old = (time_t)0;
rt_err_t err;
tm_new.tm_year = atoi(argv[1]) - 1900;
tm_new.tm_mon = atoi(argv[2]) - 1; /* .tm_min's range is [0-11] */
tm_new.tm_mday = atoi(argv[3]);
tm_new.tm_hour = atoi(argv[4]);
tm_new.tm_min = atoi(argv[5]);
tm_new.tm_sec = atoi(argv[6]);
if (tm_new.tm_year <= 0)
{
rt_kprintf("year is out of range [1900-]\n");
return;
}
if (tm_new.tm_mon > 11) /* .tm_min's range is [0-11] */
{
rt_kprintf("month is out of range [1-12]\n");
return;
}
if (tm_new.tm_mday == 0 || tm_new.tm_mday > 31)
{
rt_kprintf("day is out of range [1-31]\n");
return;
}
if (tm_new.tm_hour > 23)
{
rt_kprintf("hour is out of range [0-23]\n");
return;
}
if (tm_new.tm_min > 59)
{
rt_kprintf("minute is out of range [0-59]\n");
return;
}
if (tm_new.tm_sec > 60)
{
rt_kprintf("second is out of range [0-60]\n");
return;
}
/* save old timestamp */
err = get_timestamp(&old);
if (err != RT_EOK)
{
rt_kprintf("Get current timestamp failed. %d\n", err);
return;
}
/* converts the local time into the calendar time. */
now = mktime(&tm_new);
err = set_timestamp(now);
if (err != RT_EOK)
{
rt_kprintf("set date failed. %d\n", err);
return;
}
get_timestamp(&now); /* get new timestamp */
rt_kprintf("old: %.*s", 25, ctime(&old));
rt_kprintf("now: %.*s", 25, ctime(&now));
}
else
{
rt_kprintf("please input: date [year month day hour min sec] or date\n");
rt_kprintf("e.g: date 2018 01 01 23 59 59 or date\n");
}
}
MSH_CMD_EXPORT(date, get date and time or set (local timezone) [year month day hour min sec])
#endif /* RT_USING_FINSH */
#endif /* RT_USING_RTC */

325
riscv/rtthread/components/drivers/rtc/soft_rtc.c Executable file
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@@ -0,0 +1,325 @@
/*
* 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;
static struct timeval init_tv = {0};
#ifdef RT_USING_KTIME
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;
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:
{
struct timeval _tv;
struct timeval *tv = (struct timeval *)args;
rt_ktime_boottime_get_us(&_tv);
tv->tv_sec = init_time + _tv.tv_sec;
tv->tv_usec = init_tv.tv_usec + _tv.tv_usec;
break;
}
case RT_DEVICE_CTRL_RTC_SET_TIMEVAL:
{
struct timeval _tv;
struct 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:
{
struct timespec _ts;
struct timespec *ts = (struct timespec *)args;
rt_ktime_boottime_get_ns(&_ts);
ts->tv_sec = init_time + _ts.tv_sec;
ts->tv_nsec = init_ts.tv_nsec + _ts.tv_nsec;
break;
}
case RT_DEVICE_CTRL_RTC_SET_TIMESPEC:
{
struct timespec _ts;
struct 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:
{
struct timespec *ts = (struct timespec *)args;
ts->tv_sec = 0;
ts->tv_nsec = (rt_ktime_cputimer_getres() / RT_KTIME_RESMUL);
break;
}
#else
case RT_DEVICE_CTRL_RTC_GET_TIMEVAL:
{
struct timeval *tv = (struct timeval *)args;
rt_tick_t tick = rt_tick_get() - init_tick;
tv->tv_sec = init_time + tick / RT_TICK_PER_SECOND;
tv->tv_usec = init_tv.tv_usec + ((tick % RT_TICK_PER_SECOND) * (1000000 / RT_TICK_PER_SECOND));
break;
}
case RT_DEVICE_CTRL_RTC_SET_TIMEVAL:
{
struct timeval *tv = (struct timeval *)args;
rt_tick_t tick = rt_tick_get() - init_tick;
set_rtc_time(tv->tv_sec);
init_tv.tv_usec = tv->tv_usec - ((tick % RT_TICK_PER_SECOND) * (1000000 / RT_TICK_PER_SECOND));
_source_device_control(RT_DEVICE_CTRL_RTC_SET_TIME, &(tv->tv_sec));
break;
}
case RT_DEVICE_CTRL_RTC_GET_TIMERES:
{
struct timespec *ts = (struct timespec *)args;
ts->tv_sec = 0;
ts->tv_nsec = (1000UL * 1000 * 1000) / RT_TICK_PER_SECOND;
break;
}
#endif /* RT_USING_KTIME */
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(void)
{
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 */