/* * Copyright (c) 2006-2022, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2018-03-15 Liuguang the first version. * 2019-04-22 tyustli add imxrt series support * */ #include #include #include #ifdef BSP_USING_RTC #define LOG_TAG "drv.rtc" #include #include "drv_rtc.h" #include "fsl_snvs_hp.h" #include "fsl_snvs_lp.h" #include #if defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL #error "Please don't define 'FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL'!" #endif static time_t imxrt_hp_get_timestamp(void) { struct tm tm_new = {0}; snvs_hp_rtc_datetime_t rtcDate = {0}; snvs_lp_srtc_datetime_t srtcDate = {0}; SNVS_LP_SRTC_GetDatetime(SNVS, &srtcDate); SNVS_HP_RTC_TimeSynchronize(SNVS); SNVS_HP_RTC_GetDatetime(SNVS, &rtcDate); tm_new.tm_sec = rtcDate.second; tm_new.tm_min = rtcDate.minute; tm_new.tm_hour = rtcDate.hour; tm_new.tm_mday = rtcDate.day; tm_new.tm_mon = rtcDate.month - 1; tm_new.tm_year = rtcDate.year - 1900; return timegm(&tm_new); } static int imxrt_hp_set_timestamp(time_t timestamp) { struct tm now; snvs_lp_srtc_datetime_t srtcDate = {0}; gmtime_r(×tamp, &now); srtcDate.second = now.tm_sec; srtcDate.minute = now.tm_min; srtcDate.hour = now.tm_hour; srtcDate.day = now.tm_mday; srtcDate.month = now.tm_mon + 1; srtcDate.year = now.tm_year + 1900; if (SNVS_LP_SRTC_SetDatetime(SNVS, &srtcDate) != kStatus_Success) { LOG_E("set rtc date time failed\n"); return -RT_ERROR; } SNVS_HP_RTC_TimeSynchronize(SNVS); return RT_EOK; } static rt_err_t imxrt_hp_rtc_init(rt_device_t dev) { snvs_hp_rtc_config_t snvsRtcConfig; snvs_lp_srtc_config_t snvsSrtcConfig; /* Init SNVS_HP */ SNVS_HP_RTC_GetDefaultConfig(&snvsRtcConfig); SNVS_HP_RTC_Init(SNVS, &snvsRtcConfig); /* Init SNVS_LP */ SNVS_LP_SRTC_GetDefaultConfig(&snvsSrtcConfig); SNVS_LP_SRTC_Init(SNVS, &snvsSrtcConfig); return RT_EOK; } static rt_err_t imxrt_hp_rtc_open(rt_device_t dev, rt_uint16_t oflag) { SNVS_HP_RTC_StartTimer(SNVS); SNVS_LP_SRTC_StartTimer(SNVS); return RT_EOK; } static rt_err_t imxrt_hp_rtc_close(rt_device_t dev) { SNVS_HP_RTC_StopTimer(SNVS); return RT_EOK; } static rt_size_t imxrt_hp_rtc_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size) { return RT_EOK; } static rt_size_t imxrt_hp_rtc_write(rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) { return RT_EOK; } static rt_err_t imxrt_hp_rtc_control(rt_device_t dev, int cmd, void *args) { RT_ASSERT(dev != RT_NULL); switch(cmd) { case RT_DEVICE_CTRL_RTC_GET_TIME: { *(uint32_t *)args = imxrt_hp_get_timestamp(); } break; case RT_DEVICE_CTRL_RTC_SET_TIME: { imxrt_hp_set_timestamp(*(time_t *)args); } break; default: return RT_EINVAL; } return RT_EOK; } static struct rt_device device = { .type = RT_Device_Class_RTC, .init = imxrt_hp_rtc_init, .open = imxrt_hp_rtc_open, .close = imxrt_hp_rtc_close, .read = imxrt_hp_rtc_read, .write = imxrt_hp_rtc_write, .control = imxrt_hp_rtc_control, }; int rt_hw_rtc_init(void) { rt_err_t ret = RT_EOK; ret = rt_device_register(&device, "rtc", RT_DEVICE_FLAG_RDWR); if(ret != RT_EOK) { LOG_E("rt device register failed %d\n", ret); return ret; } rt_device_open(&device, RT_DEVICE_OFLAG_RDWR); return RT_EOK; } INIT_DEVICE_EXPORT(rt_hw_rtc_init); #include #include #define RTC_NAME "rtc" static int rtc_sample(int argc, char *argv[]) { rt_err_t ret = RT_EOK; time_t now; rt_device_t device = RT_NULL; /*寻找设备*/ device = rt_device_find(RTC_NAME); if (!device) { LOG_E("find %s failed!", RTC_NAME); return RT_ERROR; } /*初始化RTC设备*/ if(rt_device_open(device, 0) != RT_EOK) { LOG_E("open %s failed!", RTC_NAME); return RT_ERROR; } /* 设置日期 */ ret = set_date(2018, 12, 3); if (ret != RT_EOK) { rt_kprintf("set RTC date failed\n"); return ret; } /* 设置时间 */ ret = set_time(11, 15, 50); if (ret != RT_EOK) { rt_kprintf("set RTC time failed\n"); return ret; } /* 延时3秒 */ rt_thread_mdelay(3000); /* 获取时间 */ now = time(RT_NULL); rt_kprintf("%s\n", ctime(&now)); return ret; } /* 导出到 msh 命令列表中 */ MSH_CMD_EXPORT(rtc_sample, rtc sample); #endif /* BSP_USING_RTC */