libs/rt-thread
libs/rt-thread
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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2309 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
sc943313837@gmail.com 2012-09-27 16:31:07 +00:00
parent e0a5c0ae81
commit 9809c138b7
1 changed files with 15 additions and 5 deletions
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20
components/drivers/rtc/rtc.c
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@ -44,7 +44,11 @@ time_t time(time_t* t)
/* read timestamp from RTC device. */
if (device != RT_NULL)
{
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time_now);
if (rt_device_open(device, 0) == RT_EOK)
{
rt_device_control(device, RT_DEVICE_CTRL_RTC_GET_TIME, &time_now);
rt_device_close(device);
}
}
/* if t is not NULL, write timestamp to *t */
@ -70,6 +74,7 @@ rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day)
struct tm * p_tm;
struct tm tm_new;
rt_device_t device;
rt_err_t ret = RT_ERROR;
/* get current time */
now = time(RT_NULL);
@ -94,11 +99,13 @@ rt_err_t set_date(rt_uint32_t year, rt_uint32_t month, rt_uint32_t day)
device = rt_device_find("rtc");
if (device == RT_NULL)
{
return -RT_ERROR;
return RT_ERROR;
}
ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
/* update to RTC device. */
return rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
return ret;
}
/** \brief set system time(date not modify).
@ -115,6 +122,7 @@ rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second)
struct tm * p_tm;
struct tm tm_new;
rt_device_t device;
rt_err_t ret = RT_ERROR;
/* get current time */
now = time(RT_NULL);
@ -142,13 +150,15 @@ rt_err_t set_time(rt_uint32_t hour, rt_uint32_t minute, rt_uint32_t second)
return RT_ERROR;
}
ret = rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
/* update to RTC device. */
return rt_device_control(device, RT_DEVICE_CTRL_RTC_SET_TIME, &now);
return ret;
}
#ifdef RT_USING_FINSH
#include <finsh.h>
#include <rtdevice.h>
void list_date(void)
{
time_t now;