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/*
* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Change Logs:
* Date Author Notes
* 2019-03-22 wangyq the first version
* 2019-11-01 wangyq update libraries
* 2021-04-20 liuhy the second version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <sys/time.h>
#include <string.h>
#include "board.h"
#include "drv_rtc.h"
#ifdef RT_USING_RTC
static void __rtc_init(rtc_init_t *init)
{
assert_param(IS_RTC_HOUR_FORMAT(init->hour_format));
assert_param(IS_RTC_OUTPUT_SEL(init->output));
assert_param(IS_RTC_OUTPUT_POLARITY(init->output_polarity));
ald_rtc_reset();
RTC_UNLOCK();
MODIFY_REG(RTC->CON, RTC_CON_HFM_MSK, init->hour_format << RTC_CON_HFM_POS);
MODIFY_REG(RTC->CON, RTC_CON_EOS_MSK, init->output << RTC_CON_EOS_POSS);
MODIFY_REG(RTC->CON, RTC_CON_POL_MSK, init->output_polarity << RTC_CON_POL_POS);
MODIFY_REG(RTC->PSR, RTC_PSR_SPRS_MSK, init->synch_pre_div << RTC_PSR_SPRS_POSS);
MODIFY_REG(RTC->PSR, RTC_PSR_APRS_MSK, init->asynch_pre_div << RTC_PSR_APRS_POSS);
RTC_LOCK();
return;
}
static rt_err_t es32f0_rtc_control(rt_device_t dev, int cmd, void *args)
{
rt_err_t result = RT_EOK;
struct tm time_temp;
rtc_date_t date;
rtc_time_t time;
switch (cmd)
{
case RT_DEVICE_CTRL_RTC_GET_TIME:
ald_rtc_get_date_time(&date, &time, RTC_FORMAT_DEC);
time_temp.tm_sec = time.second;
time_temp.tm_min = time.minute;
time_temp.tm_hour = time.hour;
time_temp.tm_mday = date.day;
time_temp.tm_mon = date.month - 1;
time_temp.tm_year = date.year - 1900 + 2000;
*((time_t *)args) = timegm(&time_temp);
break;
case RT_DEVICE_CTRL_RTC_SET_TIME:
gmtime_r((const time_t *)args, &time_temp);
time.hour = time_temp.tm_hour;
time.minute = time_temp.tm_min;
time.second = time_temp.tm_sec;
date.year = time_temp.tm_year + 1900 - 2000;
date.month = time_temp.tm_mon + 1;
date.day = time_temp.tm_mday;
ald_rtc_set_time(&time, RTC_FORMAT_DEC);
ald_rtc_set_date(&date, RTC_FORMAT_DEC);
/* start RTC */
RTC_UNLOCK();
SET_BIT(RTC->CON, RTC_CON_GO_MSK);
RTC_LOCK();
break;
case RT_DEVICE_CTRL_RTC_GET_ALARM:
break;
case RT_DEVICE_CTRL_RTC_SET_ALARM:
break;
default:
break;
}
return result;
}
#ifdef RT_USING_DEVICE_OPS
const static struct rt_device_ops es32f0_rtc_ops =
{
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
RT_NULL,
es32f0_rtc_control
};
#endif
int rt_hw_rtc_init(void)
{
rt_err_t ret = RT_EOK;
static struct rt_device rtc_dev;
rtc_init_t rtc_initstruct;
/* enable clk */
ald_rtc_source_select(ES_RTC_CLK_SOURCE);
if(ES_RTC_CLK_SOURCE == ES_C_RTC_SOURCE_LOSC)
{
CMU_LOSC_ENABLE();
ald_cmu_losc_safe_config(ENABLE);
}
/* set default time */
RTC_UNLOCK();
WRITE_REG(RTC->TIME, 0x134251);
WRITE_REG(RTC->DATE, 0x1190401);
RTC_LOCK();
/* RTC function initialization */
rtc_initstruct.hour_format = RTC_HOUR_FORMAT_24;
rtc_initstruct.asynch_pre_div = 0;
rtc_initstruct.synch_pre_div = 32767;
rtc_initstruct.output = RTC_OUTPUT_DISABLE;
rtc_initstruct.output_polarity = RTC_OUTPUT_POLARITY_HIGH;
__rtc_init(&rtc_initstruct);
rtc_dev.type = RT_Device_Class_RTC;
rtc_dev.rx_indicate = RT_NULL;
rtc_dev.tx_complete = RT_NULL;
#ifdef RT_USING_DEVICE_OPS
rtc_dev.ops = &es32f0_rtc_ops;
#else
rtc_dev.init = RT_NULL;
rtc_dev.open = RT_NULL;
rtc_dev.close = RT_NULL;
rtc_dev.read = RT_NULL;
rtc_dev.write = RT_NULL;
rtc_dev.control = es32f0_rtc_control;
#endif
rtc_dev.user_data = RTC;
ret = rt_device_register(&rtc_dev, ES_DEVICE_NAME_RTC, RT_DEVICE_FLAG_RDWR);
return ret;
}
INIT_DEVICE_EXPORT(rt_hw_rtc_init);
#endif
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