/* * Copyright (C) 2018 Shanghai Eastsoft Microelectronics Co., Ltd. * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2019-03-22 wangyq the first version * 2019-11-01 wangyq update libraries */ #include #include #include #include #include "board.h" #include "drv_rtc.h" #include #include #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; struct tm *pNow; 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) = mktime(&time_temp); break; case RT_DEVICE_CTRL_RTC_SET_TIME: rt_enter_critical(); /* converts calendar time time into local time. */ pNow = localtime((const time_t *)args); /* copy the statically located variable */ memcpy(&time_temp, pNow, sizeof(struct tm)); /* unlock scheduler. */ rt_exit_critical(); 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 external 32.768kHz */ 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_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, "rtc", RT_DEVICE_FLAG_RDWR); return ret; } INIT_DEVICE_EXPORT(rt_hw_rtc_init); #endif