129 lines
3.1 KiB
C
129 lines
3.1 KiB
C
/*
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* Copyright (c) 2021 hpmicro
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Change Logs:
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* Date Author Notes
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* 2021-09-19 HPMICRO First version
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*/
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#include "board.h"
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#include "drv_rtc.h"
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#include "hpm_rtc_drv.h"
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <rtdbg.h>
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#ifdef RT_USING_RTC
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/*******************************************************************************************
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*
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* Prototypes
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*
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******************************************************************************************/
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static rt_err_t hpm_rtc_init(rt_device_t dev);
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static rt_err_t hpm_rtc_open(rt_device_t dev, rt_uint16_t oflag);
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static rt_err_t hpm_rtc_close(rt_device_t dev);
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static rt_ssize_t hpm_rtc_read(rt_device_t dev, rt_off_t pos, void *buf, rt_size_t size);
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static rt_ssize_t hpm_rtc_write(rt_device_t dev, rt_off_t pos, const void *buf, rt_size_t size);
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static rt_err_t hpm_rtc_control(rt_device_t dev, int cmd, void *args);
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static time_t hpm_rtc_get_timestamp(void);
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static int hpm_rtc_set_timestamp(time_t timestamp);
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/*******************************************************************************************
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*
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* Variables
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*
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******************************************************************************************/
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static struct rt_device hpm_rtc= {
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.type = RT_Device_Class_RTC,
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.init = hpm_rtc_init,
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.open = hpm_rtc_open,
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.close = hpm_rtc_close,
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.read = hpm_rtc_read,
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.write = hpm_rtc_write,
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.control = hpm_rtc_control,
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};
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/*******************************************************************************************
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*
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* Codes
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*
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******************************************************************************************/
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static rt_err_t hpm_rtc_init(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_err_t hpm_rtc_open(rt_device_t dev, rt_uint16_t oflag)
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{
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return RT_EOK;
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}
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static rt_err_t hpm_rtc_close(rt_device_t dev)
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{
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return RT_EOK;
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}
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static rt_ssize_t hpm_rtc_read(rt_device_t dev, rt_off_t pos, void *buf, rt_size_t size)
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{
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return 0;
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}
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static rt_ssize_t hpm_rtc_write(rt_device_t dev, rt_off_t pos, const void *buf, rt_size_t size)
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{
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return 0;
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}
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static rt_err_t hpm_rtc_control(rt_device_t dev, int cmd, void *args)
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{
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RT_ASSERT(dev != RT_NULL);
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rt_err_t err = RT_EOK;
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switch(cmd) {
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case RT_DEVICE_CTRL_RTC_GET_TIME:
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*(uint32_t *)args = hpm_rtc_get_timestamp();
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break;
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case RT_DEVICE_CTRL_RTC_SET_TIME:
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hpm_rtc_set_timestamp(*(time_t *)args);
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break;
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default:
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err = -RT_EINVAL;
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break;
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}
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return err;
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}
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static time_t hpm_rtc_get_timestamp(void)
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{
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time_t time = rtc_get_time(HPM_RTC);
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return time;
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}
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static int hpm_rtc_set_timestamp(time_t timestamp)
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{
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(void)rtc_config_time(HPM_RTC, timestamp);
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return RT_EOK;
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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 err = RT_EOK;
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err = rt_device_register(&hpm_rtc, "rtc", RT_DEVICE_FLAG_RDWR);
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if (err != RT_EOK) {
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LOG_E("rt device %s failed, status=%d\n", "rtc", err);
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return err;
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}
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rt_device_open(&hpm_rtc, RT_DEVICE_FLAG_RDWR);
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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 /* RT_USING_RTC */
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