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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-03-15 Liuguang the first version.
* 2019-04-22 tyustli add imxrt series support
*
*/
#include <rtthread.h>
#ifdef BSP_USING_RTC
#define LOG_TAG "drv.rtc"
#include <drv_log.h>
#include "drv_rtc.h"
#include "fsl_snvs_hp.h"
#include <time.h>
#if defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL
#error "Please don't define 'FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL'!"
#endif
static time_t get_timestamp(void)
{
struct tm tm_new = {0};
snvs_hp_rtc_datetime_t rtcDate = {0};
SNVS_HP_RTC_GetDatetime(SNVS, &rtcDate);
tm_new.tm_sec = rtcDate.second;
tm_new.tm_min = rtcDate.minute;
tm_new.tm_hour = rtcDate.hour;
tm_new.tm_mday = rtcDate.day;
tm_new.tm_mon = rtcDate.month - 1;
tm_new.tm_year = rtcDate.year - 1900;
return mktime(&tm_new);
}
static int set_timestamp(time_t timestamp)
{
struct tm *p_tm;
snvs_hp_rtc_datetime_t rtcDate = {0};
p_tm = localtime(×tamp);
rtcDate.second = p_tm->tm_sec ;
rtcDate.minute = p_tm->tm_min ;
rtcDate.hour = p_tm->tm_hour;
rtcDate.day = p_tm->tm_mday;
rtcDate.month = p_tm->tm_mon + 1;
rtcDate.year = p_tm->tm_year + 1900;
if (SNVS_HP_RTC_SetDatetime(SNVS, &rtcDate) != kStatus_Success)
{
LOG_E("set rtc date time failed\n");
return -RT_ERROR;
}
return RT_EOK;
}
static rt_err_t imxrt_hp_rtc_init(rt_device_t dev)
{
snvs_hp_rtc_config_t snvsRtcConfig;
SNVS_HP_RTC_GetDefaultConfig(&snvsRtcConfig);
SNVS_HP_RTC_Init(SNVS, &snvsRtcConfig);
return RT_EOK;
}
static rt_err_t imxrt_hp_rtc_open(rt_device_t dev, rt_uint16_t oflag)
{
SNVS_HP_RTC_StartTimer(SNVS);
return RT_EOK;
}
static rt_err_t imxrt_hp_rtc_close(rt_device_t dev)
{
SNVS_HP_RTC_StopTimer(SNVS);
return RT_EOK;
}
static rt_size_t imxrt_hp_rtc_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
return RT_EOK;
}
static rt_size_t imxrt_hp_rtc_write(rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
return RT_EOK;
}
static rt_err_t imxrt_hp_rtc_control(rt_device_t dev, int cmd, void *args)
{
RT_ASSERT(dev != RT_NULL);
switch(cmd)
{
case RT_DEVICE_CTRL_RTC_GET_TIME:
{
*(uint32_t *)args = get_timestamp();
}
break;
case RT_DEVICE_CTRL_RTC_SET_TIME:
{
set_timestamp(*(time_t *)args);
}
break;
default:
return RT_EINVAL;
}
return RT_EOK;
}
static struct rt_device device =
{
.type = RT_Device_Class_RTC,
.init = imxrt_hp_rtc_init,
.open = imxrt_hp_rtc_open,
.close = imxrt_hp_rtc_close,
.read = imxrt_hp_rtc_read,
.write = imxrt_hp_rtc_write,
.control = imxrt_hp_rtc_control,
};
int rt_hw_rtc_init(void)
{
rt_err_t ret = RT_EOK;
ret = rt_device_register(&device, "rtc", RT_DEVICE_FLAG_RDWR);
if(ret != RT_EOK)
{
LOG_E("rt device register failed %d\n", ret);
return ret;
}
rt_device_open(&device, RT_DEVICE_OFLAG_RDWR);
return RT_EOK;
}
INIT_DEVICE_EXPORT(rt_hw_rtc_init);
#endif /* BSP_USING_RTC */
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