402 lines
11 KiB
C
402 lines
11 KiB
C
/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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* 2022-05-16 shelton first version
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* 2023-04-08 shelton add support f423
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* 2023-10-18 shelton add support f402/f405
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* 2024-04-12 shelton add support a403a and a423
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <sys/time.h>
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#include "drv_common.h"
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#ifdef BSP_USING_RTC
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//#define DRV_DEBUG
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#define LOG_TAG "drv.rtc"
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#include <drv_log.h>
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#define BKUP_REG_DATA 0xA5A5
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#if defined (SOC_SERIES_AT32F403A) || defined (SOC_SERIES_AT32F407) || \
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defined (SOC_SERIES_AT32F413) || defined (SOC_SERIES_AT32A403A)
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#define Alarm_IRQn RTCAlarm_IRQn
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#define Alarm_IRQHandler RTCAlarm_IRQHandler
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#elif defined (SOC_SERIES_AT32F421) || defined (SOC_SERIES_AT32F425)
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#define Alarm_IRQn RTC_IRQn
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#define Alarm_IRQHandler RTC_IRQHandler
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#else
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#define Alarm_IRQn ERTCAlarm_IRQn
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#define Alarm_IRQHandler ERTCAlarm_IRQHandler
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#endif
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struct rtc_device_object
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{
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rt_rtc_dev_t rtc_dev;
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#ifdef RT_USING_ALARM
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struct rt_rtc_wkalarm wkalarm;
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#endif
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};
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static struct rtc_device_object rtc_device;
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static time_t get_rtc_timestamp(void)
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{
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#if defined (SOC_SERIES_AT32F435) || defined (SOC_SERIES_AT32F437) || \
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defined (SOC_SERIES_AT32F415) || defined (SOC_SERIES_AT32F421) || \
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defined (SOC_SERIES_AT32F425) || defined (SOC_SERIES_AT32F423) || \
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defined (SOC_SERIES_AT32F402) || defined (SOC_SERIES_AT32F405) || \
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defined (SOC_SERIES_AT32A423)
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struct tm tm_new;
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ertc_time_type ertc_time_struct;
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ertc_calendar_get(&ertc_time_struct);
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tm_new.tm_sec = ertc_time_struct.sec;
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tm_new.tm_min = ertc_time_struct.min;
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tm_new.tm_hour = ertc_time_struct.hour;
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tm_new.tm_mday = ertc_time_struct.day;
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tm_new.tm_mon = ertc_time_struct.month - 1;
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tm_new.tm_year = ertc_time_struct.year + 100;
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LOG_D("get rtc time.");
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return timegm(&tm_new);
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#else
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return rtc_counter_get();
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#endif
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}
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static rt_err_t set_rtc_time_stamp(time_t time_stamp)
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{
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#if defined (SOC_SERIES_AT32F435) || defined (SOC_SERIES_AT32F437) || \
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defined (SOC_SERIES_AT32F415) || defined (SOC_SERIES_AT32F421) || \
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defined (SOC_SERIES_AT32F425) || defined (SOC_SERIES_AT32F423) || \
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defined (SOC_SERIES_AT32F402) || defined (SOC_SERIES_AT32F405) || \
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defined (SOC_SERIES_AT32A423)
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struct tm now;
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gmtime_r(&time_stamp, &now);
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if (now.tm_year < 100)
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{
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return -RT_ERROR;
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}
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/* set time */
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if(ertc_time_set(now.tm_hour, now.tm_min, now.tm_sec, ERTC_AM) != SUCCESS)
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{
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return -RT_ERROR;
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}
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/* set date */
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if(ertc_date_set(now.tm_year - 100, now.tm_mon + 1, now.tm_mday, now.tm_wday + 1) != SUCCESS)
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{
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return -RT_ERROR;
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}
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LOG_D("set rtc time.");
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/* indicator for the ertc configuration */
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ertc_bpr_data_write(ERTC_DT1, BKUP_REG_DATA);
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#else
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/* set the rtc counter value */
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rtc_counter_set(time_stamp);
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/* wait until last write operation on rtc registers has finished */
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rtc_wait_config_finish();
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LOG_D("set rtc time.");
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bpr_data_write(BPR_DATA1, BKUP_REG_DATA);
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#endif
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return RT_EOK;
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}
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static rt_err_t rt_rtc_config(void)
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{
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/* allow access to pattery powered domain */
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pwc_battery_powered_domain_access(TRUE);
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#if defined (SOC_SERIES_AT32F435) || defined (SOC_SERIES_AT32F437) || \
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defined (SOC_SERIES_AT32F415) || defined (SOC_SERIES_AT32F421) || \
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defined (SOC_SERIES_AT32F425) || defined (SOC_SERIES_AT32F423) || \
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defined (SOC_SERIES_AT32F402) || defined (SOC_SERIES_AT32F405) || \
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defined (SOC_SERIES_AT32A423)
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/* select rtc clock source */
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#ifdef BSP_RTC_USING_LICK
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crm_ertc_clock_select(CRM_ERTC_CLOCK_LICK);
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#else
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crm_ertc_clock_select(CRM_ERTC_CLOCK_LEXT);
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#endif /* BSP_RTC_USING_LICK */
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/* enable rtc */
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crm_ertc_clock_enable(TRUE);
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/* wait for ertc registers update */
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ertc_wait_update();
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if (ertc_bpr_data_read(ERTC_DT1)!= BKUP_REG_DATA)
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{
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LOG_I("RTC hasn't been configured, please use <date> command to config.");
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/* configure the ertc divider */
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ertc_divider_set(0x7F, 0xFF);
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/* configure the ertc hour mode */
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ertc_hour_mode_set(ERTC_HOUR_MODE_24);
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}
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#else
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#ifdef BSP_RTC_USING_LICK
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crm_rtc_clock_select(CRM_RTC_CLOCK_LICK);
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#else
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crm_rtc_clock_select(CRM_RTC_CLOCK_LEXT);
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#endif /* BSP_RTC_USING_LICK */
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/* enable rtc */
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crm_rtc_clock_enable(TRUE);
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/* wait for rtc registers update finish */
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rtc_wait_update_finish();
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/* wait until last write operation on rtc registers has finished */
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rtc_wait_config_finish();
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if (bpr_data_read(BPR_DATA1) != BKUP_REG_DATA)
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{
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LOG_I("RTC hasn't been configured, please use <date> command to config.");
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/* set rtc divider: set rtc period to 1sec */
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rtc_divider_set(32767);
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/* wait until last write operation on rtc registers has finished */
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rtc_wait_config_finish();
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}
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#endif
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return RT_EOK;
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}
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static rt_err_t _rtc_init(void)
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{
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crm_periph_clock_enable(CRM_PWC_PERIPH_CLOCK, TRUE);
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#if defined (SOC_SERIES_AT32F403A) || defined (SOC_SERIES_AT32F407) || \
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defined (SOC_SERIES_AT32F413) || defined (SOC_SERIES_AT32A403A)
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crm_periph_clock_enable(CRM_BPR_PERIPH_CLOCK, TRUE);
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#endif
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#ifdef BSP_RTC_USING_LICK
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crm_clock_source_enable(CRM_CLOCK_SOURCE_LICK, TRUE);
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while(crm_flag_get(CRM_LICK_STABLE_FLAG) == RESET);
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#else
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pwc_battery_powered_domain_access(TRUE);
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crm_clock_source_enable(CRM_CLOCK_SOURCE_LEXT, TRUE);
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while(crm_flag_get(CRM_LEXT_STABLE_FLAG) == RESET);
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#endif /* BSP_RTC_USING_LICK */
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if (rt_rtc_config() != RT_EOK)
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{
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LOG_E("rtc init failed.");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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static rt_err_t _rtc_get_secs(time_t *args)
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{
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*(rt_uint32_t *)args = get_rtc_timestamp();
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LOG_D("RTC: get rtc_time %x\n", *(rt_uint32_t *)args);
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return RT_EOK;
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}
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static rt_err_t _rtc_set_secs(time_t *args)
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{
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rt_err_t result = RT_EOK;
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if (set_rtc_time_stamp(*(rt_uint32_t *)args))
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{
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result = -RT_ERROR;
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}
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LOG_D("RTC: set rtc_time %x\n", *(rt_uint32_t *)args);
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return result;
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}
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#ifdef RT_USING_ALARM
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static rt_err_t rtc_alarm_time_set(struct rtc_device_object* p_dev)
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{
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exint_init_type exint_init_struct;
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#if defined (SOC_SERIES_AT32F403A) || defined (SOC_SERIES_AT32F407) || \
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defined (SOC_SERIES_AT32F413) || defined (SOC_SERIES_AT32A403A)
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struct tm tm_new;
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time_t sec_count;
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#endif
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/* config the exint line of the rtc alarm */
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exint_init_struct.line_select = EXINT_LINE_17;
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exint_init_struct.line_enable = TRUE;
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exint_init_struct.line_mode = EXINT_LINE_INTERRUPUT;
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exint_init_struct.line_polarity = EXINT_TRIGGER_RISING_EDGE;
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exint_init(&exint_init_struct);
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if (p_dev->wkalarm.enable)
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{
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nvic_irq_enable(Alarm_IRQn, 0, 0);
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#if defined (SOC_SERIES_AT32F403A) || defined (SOC_SERIES_AT32F407) || \
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defined (SOC_SERIES_AT32F413) || defined (SOC_SERIES_AT32A403A)
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/* clear alarm flag */
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rtc_flag_clear(RTC_TA_FLAG);
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/* wait for the register write to complete */
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rtc_wait_config_finish();
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/* enable alarm interrupt */
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rtc_interrupt_enable(RTC_TA_INT, TRUE);
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/* wait for the register write to complete */
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rtc_wait_config_finish();
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tm_new.tm_sec = p_dev->wkalarm.tm_sec;
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tm_new.tm_min = p_dev->wkalarm.tm_min;
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tm_new.tm_hour = p_dev->wkalarm.tm_hour;
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tm_new.tm_mday = p_dev->wkalarm.tm_mday;
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tm_new.tm_mon = p_dev->wkalarm.tm_mon;
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tm_new.tm_year = p_dev->wkalarm.tm_year;
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sec_count = timegm(&tm_new);
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rtc_alarm_set(sec_count);
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/* wait for the register write to complete */
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rtc_wait_config_finish();
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#else
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ertc_alarm_enable(ERTC_ALA, FALSE);
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ertc_flag_clear(ERTC_ALAF_FLAG);
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ertc_alarm_mask_set(ERTC_ALA, ERTC_ALARM_MASK_DATE_WEEK);
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ertc_alarm_week_date_select(ERTC_ALA, ERTC_SLECT_DATE);
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ertc_alarm_set(ERTC_ALA, p_dev->wkalarm.tm_mday, p_dev->wkalarm.tm_hour, \
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p_dev->wkalarm.tm_min, p_dev->wkalarm.tm_sec, ERTC_24H);
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ertc_interrupt_enable(ERTC_ALA_INT, TRUE);
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ertc_alarm_enable(ERTC_ALA, TRUE);
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ertc_flag_clear(ERTC_ALAF_FLAG);
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#endif
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}
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return RT_EOK;
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}
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void Alarm_IRQHandler(void)
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{
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rt_interrupt_enter();
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#if defined (SOC_SERIES_AT32F403A) || defined (SOC_SERIES_AT32F407) || \
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defined (SOC_SERIES_AT32F413) || defined (SOC_SERIES_AT32A403A)
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if(rtc_flag_get(RTC_TA_FLAG) != RESET)
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{
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/* clear exint line flag */
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exint_flag_clear(EXINT_LINE_17);
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/* wait for the register write to complete */
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rtc_wait_config_finish();
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/* clear alarm flag */
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rtc_flag_clear(RTC_TA_FLAG);
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/* wait for the register write to complete */
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rtc_wait_config_finish();
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rt_alarm_update(&rtc_device.rtc_dev.parent, 1);
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}
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#else
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if(ertc_flag_get(ERTC_ALAF_FLAG) != RESET)
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{
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/* clear alarm flag */
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ertc_flag_clear(ERTC_ALAF_FLAG);
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/* clear exint flag */
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exint_flag_clear(EXINT_LINE_17);
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rt_alarm_update(&rtc_device.rtc_dev.parent, 1);
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}
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#endif
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rt_interrupt_leave();
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}
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#endif
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static rt_err_t _rtc_get_alarm(struct rt_rtc_wkalarm *alarm)
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{
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#ifdef RT_USING_ALARM
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*alarm = rtc_device.wkalarm;
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LOG_D("GET_ALARM %d:%d:%d",rtc_device.wkalarm.tm_hour,
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rtc_device.wkalarm.tm_min,rtc_device.wkalarm.tm_sec);
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return RT_EOK;
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#else
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return -RT_ERROR;
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#endif
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}
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static rt_err_t _rtc_set_alarm(struct rt_rtc_wkalarm *alarm)
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{
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#ifdef RT_USING_ALARM
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LOG_D("RT_DEVICE_CTRL_RTC_SET_ALARM");
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if (alarm != RT_NULL)
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{
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rtc_device.wkalarm.enable = alarm->enable;
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rtc_device.wkalarm.tm_year = alarm->tm_year;
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rtc_device.wkalarm.tm_mon = alarm->tm_mon;
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rtc_device.wkalarm.tm_mday = alarm->tm_mday;
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rtc_device.wkalarm.tm_hour = alarm->tm_hour;
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rtc_device.wkalarm.tm_min = alarm->tm_min;
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rtc_device.wkalarm.tm_sec = alarm->tm_sec;
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rtc_alarm_time_set(&rtc_device);
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}
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else
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{
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LOG_E("RT_DEVICE_CTRL_RTC_SET_ALARM error!!");
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return -RT_ERROR;
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}
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LOG_D("SET_ALARM %d:%d:%d",alarm->tm_hour,
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alarm->tm_min, alarm->tm_sec);
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return RT_EOK;
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#else
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return -RT_ERROR;
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#endif
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}
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static rt_err_t _rtc_get_timeval(struct timeval *tv)
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{
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tv->tv_sec = get_rtc_timestamp();
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return RT_EOK;
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}
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static const struct rt_rtc_ops _rtc_ops =
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{
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_rtc_init,
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_rtc_get_secs,
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_rtc_set_secs,
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_rtc_get_alarm,
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_rtc_set_alarm,
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_rtc_get_timeval,
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RT_NULL,
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};
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int rt_hw_rtc_init(void)
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{
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rt_err_t result;
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rtc_device.rtc_dev.ops = &_rtc_ops;
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result = rt_hw_rtc_register(&rtc_device.rtc_dev, "rtc", RT_DEVICE_FLAG_RDWR, RT_NULL);
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if (result != RT_EOK)
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{
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LOG_E("rtc register err code: %d", result);
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return result;
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}
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LOG_D("rtc init success");
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return RT_EOK;
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}
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INIT_DEVICE_EXPORT(rt_hw_rtc_init);
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#endif /* BSP_USING_RTC */
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