[求助]我的drv_rtc.c好像是阉割版...

发布于 2020-03-16 19:47:29 浏览：1924 订阅该版

有没有人使用过rt_alarm呢？
看了一下，俺的drv_rtc.c中的contrl中，没有实现相关函数呢？
RT_DEVICE_CTRL_RTC_SET_ALARM，RT_DEVICE_CTRL_RTC_GET_ALARM，这两个没有实现。

```static rt_err_t rt_rtc_control(rt_device_t dev, int cmd, void *args)
{
    rt_err_t result = RT_EOK;
    RT_ASSERT(dev != RT_NULL);
    switch (cmd)
    {
    case RT_DEVICE_CTRL_RTC_GET_TIME:
        *(rt_uint32_t *)args = get_rtc_timestamp();
        LOG_D("RTC: get rtc_time %x<br>", *(rt_uint32_t *)args);
        break;

case RT_DEVICE_CTRL_RTC_SET_TIME:
        if (set_rtc_time_stamp(*(rt_uint32_t *)args))
        {
            result = -RT_ERROR;
        }
        LOG_D("RTC: set rtc_time %x<br>", *(rt_uint32_t *)args);
        break;
    }

return result;
}```

```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;

ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_ALARM, &wkalarm);//这个在rtc中没有实现
    if ((ret == RT_EOK) && wkalarm.enable)
    {
        ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_ALARM, &wkalarm);//这个在rtc中没有实现
        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;
        }
    }

return (ret);
}```
请问，这个怎么弄呢？有没有写好的可以参考一下呀？