158 lines
3.9 KiB
C
158 lines
3.9 KiB
C
/*
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* Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd.
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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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* 2019-03-22 wangyq the first version
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <string.h>
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#include "board.h"
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#include "drv_rtc.h"
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#include <ald_cmu.h>
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#include <ald_rtc.h>
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#ifdef RT_USING_RTC
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static void rtc_init(rtc_init_t *init)
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{
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assert_param(IS_RTC_HOUR_FORMAT(init->hour_format));
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assert_param(IS_RTC_OUTPUT_SEL(init->output));
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assert_param(IS_RTC_OUTPUT_POLARITY(init->output_polarity));
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rtc_reset();
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RTC_UNLOCK();
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MODIFY_REG(RTC->CON, RTC_CON_HFM_MSK, init->hour_format << RTC_CON_HFM_POS);
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MODIFY_REG(RTC->CON, RTC_CON_EOS_MSK, init->output << RTC_CON_EOS_POSS);
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MODIFY_REG(RTC->CON, RTC_CON_POL_MSK, init->output_polarity << RTC_CON_POL_POS);
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MODIFY_REG(RTC->PSR, RTC_PSR_SPRS_MSK, init->synch_pre_div << RTC_PSR_SPRS_POSS);
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MODIFY_REG(RTC->PSR, RTC_PSR_APRS_MSK, init->asynch_pre_div << RTC_PSR_APRS_POSS);
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RTC_LOCK();
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return;
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}
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static rt_err_t es32f0_rtc_control(rt_device_t dev, int cmd, void *args)
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{
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rt_err_t result = RT_EOK;
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struct tm time_temp;
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struct tm *pNow;
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rtc_date_t date;
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rtc_time_t time;
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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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rtc_get_date_time(&date, &time, RTC_FORMAT_DEC);
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time_temp.tm_sec = time.second;
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time_temp.tm_min = time.minute;
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time_temp.tm_hour = time.hour;
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time_temp.tm_mday = date.day;
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time_temp.tm_mon = date.month - 1;
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time_temp.tm_year = date.year - 1900 + 2000;
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*((time_t *)args) = mktime(&time_temp);
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break;
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case RT_DEVICE_CTRL_RTC_SET_TIME:
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rt_enter_critical();
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/* converts calendar time time into local time. */
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pNow = localtime((const time_t *)args);
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/* copy the statically located variable */
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memcpy(&time_temp, pNow, sizeof(struct tm));
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/* unlock scheduler. */
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rt_exit_critical();
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time.hour = time_temp.tm_hour;
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time.minute = time_temp.tm_min;
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time.second = time_temp.tm_sec;
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date.year = time_temp.tm_year + 1900 - 2000;
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date.month = time_temp.tm_mon + 1;
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date.day = time_temp.tm_mday;
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rtc_set_time(&time, RTC_FORMAT_DEC);
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rtc_set_date(&date, RTC_FORMAT_DEC);
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/* start RTC */
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RTC_UNLOCK();
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SET_BIT(RTC->CON, RTC_CON_GO_MSK);
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RTC_LOCK();
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break;
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case RT_DEVICE_CTRL_RTC_GET_ALARM:
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break;
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case RT_DEVICE_CTRL_RTC_SET_ALARM:
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break;
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default:
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break;
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}
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return result;
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}
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#ifdef RT_USING_DEVICE_OPS
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const static struct rt_device_ops es32f0_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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es32f0_rtc_control
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};
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#endif
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int rt_hw_rtc_init(void)
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{
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rt_err_t ret = RT_EOK;
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static struct rt_device rtc_dev;
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rtc_init_t rtc_initstruct;
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/* enable external 32.768kHz */
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CMU_LOSC_ENABLE();
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cmu_losc_safe_config(ENABLE);
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/* set default time */
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RTC_UNLOCK();
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WRITE_REG(RTC->TIME, 0x134251);
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WRITE_REG(RTC->DATE, 0x1190401);
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RTC_LOCK();
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/* RTC function initialization */
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rtc_initstruct.hour_format = RTC_HOUR_FORMAT_24;
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rtc_initstruct.asynch_pre_div = 0;
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rtc_initstruct.synch_pre_div = 32767;
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rtc_initstruct.output = RTC_OUTPUT_DISABLE;
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rtc_init(&rtc_initstruct);
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rtc_dev.type = RT_Device_Class_RTC;
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rtc_dev.rx_indicate = RT_NULL;
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rtc_dev.tx_complete = RT_NULL;
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#ifdef RT_USING_DEVICE_OPS
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rtc_dev.ops = &es32f0_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 = es32f0_rtc_control;
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#endif
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rtc_dev.user_data = RTC;
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ret = rt_device_register(&rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR);
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return ret;
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}
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INIT_DEVICE_EXPORT(rt_hw_rtc_init);
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#endif
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