149 lines
3.2 KiB
C
149 lines
3.2 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-04-13 armink the first version
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* 2022-05-17 Meco Man improve and beautify
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*/
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#include <sys/time.h>
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#include <rtdevice.h>
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static struct rt_device rtc_dev;
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#ifdef BSP_USING_ALARM
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static struct rt_rtc_wkalarm wkalarm;
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static struct rt_timer alarm_time;
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static void alarm_timeout(void *param)
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{
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rt_alarm_update(param, 1);
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}
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static void soft_rtc_alarm_update(struct rt_rtc_wkalarm *palarm)
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{
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rt_tick_t next_tick;
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if (palarm->enable)
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{
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next_tick = RT_TICK_PER_SECOND;
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rt_timer_control(&alarm_time, RT_TIMER_CTRL_SET_TIME, &next_tick);
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rt_timer_start(&alarm_time);
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}
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else
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{
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rt_timer_stop(&alarm_time);
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}
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}
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#endif /* BSP_USING_ALARM */
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static void get_rtc_timeval(struct timeval *tv)
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{
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struct tm newtime = { 0 };
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SYSTEMTIME sys_time;
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GetSystemTime(&sys_time); /* get RTC from Windows */
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newtime.tm_year = sys_time.wYear - 1900;
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newtime.tm_mon = sys_time.wMonth - 1;
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newtime.tm_mday = sys_time.wDay;
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newtime.tm_hour = sys_time.wHour;
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newtime.tm_min = sys_time.wMinute;
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newtime.tm_sec = sys_time.wSecond;
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tv->tv_sec = timegm(&newtime);
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tv->tv_usec = sys_time.wMilliseconds * 1000UL;
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}
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static rt_err_t pc_rtc_control(rt_device_t dev, int cmd, void *args)
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{
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RT_ASSERT(dev != RT_NULL);
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switch (cmd)
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{
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case RT_DEVICE_CTRL_RTC_GET_TIME:
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{
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struct timeval tv;
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get_rtc_timeval(&tv);
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*(time_t*) args = tv.tv_sec;
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break;
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}
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case RT_DEVICE_CTRL_RTC_GET_TIMEVAL:
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{
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get_rtc_timeval((struct timeval *) args);
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break;
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}
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#ifdef BSP_USING_ALARM
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case RT_DEVICE_CTRL_RTC_SET_TIME:
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{
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soft_rtc_alarm_update(&wkalarm);
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break;
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}
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case RT_DEVICE_CTRL_RTC_GET_ALARM:
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{
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*((struct rt_rtc_wkalarm *)args) = wkalarm;
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break;
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}
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case RT_DEVICE_CTRL_RTC_SET_ALARM:
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{
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wkalarm = *((struct rt_rtc_wkalarm *)args);
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soft_rtc_alarm_update(&wkalarm);
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break;
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}
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#endif /* BSP_USING_ALARM */
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default:
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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#ifdef RT_USING_DEVICE_OPS
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const static struct rt_device_ops pc_rtc_ops =
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{
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RT_NULL,
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RT_NULL,
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RT_NULL,
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RT_NULL,
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RT_NULL,
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pc_rtc_control
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};
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#endif
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int rt_pc_rtc_init(void)
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{
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/* make sure only one 'rtc' device */
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RT_ASSERT(!rt_device_find("rtc"));
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#ifdef BSP_USING_ALARM
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rt_timer_init(&alarm_time,
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"alarm",
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alarm_timeout,
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&rtc_dev,
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0,
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RT_TIMER_FLAG_SOFT_TIMER | RT_TIMER_FLAG_ONE_SHOT);
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#endif
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rtc_dev.type = RT_Device_Class_RTC;
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/* register rtc device */
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#ifdef RT_USING_DEVICE_OPS
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rtc_dev.ops = &pc_rtc_ops;
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#else
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rtc_dev.init = RT_NULL;
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rtc_dev.open = RT_NULL;
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rtc_dev.close = RT_NULL;
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rtc_dev.read = RT_NULL;
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rtc_dev.write = RT_NULL;
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rtc_dev.control = pc_rtc_control;
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#endif
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rtc_dev.user_data = RT_NULL; /* no private */
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rt_device_register(&rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR);
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return 0;
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}
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INIT_BOARD_EXPORT(rt_pc_rtc_init);
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