mbed library sources. Supersedes mbed-src.
Fork of mbed-dev by
Diff: targets/TARGET_NUVOTON/TARGET_NUC472/rtc_api.c
- Revision:
- 153:9398a535854b
- Parent:
- 152:9a67f0b066fc
--- a/targets/TARGET_NUVOTON/TARGET_NUC472/rtc_api.c Thu Dec 15 11:48:27 2016 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,121 +0,0 @@ -/* mbed Microcontroller Library - * Copyright (c) 2015-2016 Nuvoton - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "rtc_api.h" - -#if DEVICE_RTC - -#include "wait_api.h" -#include "mbed_error.h" -#include "nu_modutil.h" -#include "nu_miscutil.h" - -#define YEAR0 1900 -//#define EPOCH_YR 1970 -static int rtc_inited = 0; - -static const struct nu_modinit_s rtc_modinit = {RTC_0, RTC_MODULE, 0, 0, 0, RTC_IRQn, NULL}; - -void rtc_init(void) -{ - if (rtc_inited) { - return; - } - rtc_inited = 1; - - // Enable IP clock - CLK_EnableModuleClock(rtc_modinit.clkidx); - - RTC_Open(NULL); -} - -void rtc_free(void) -{ - // FIXME -} - -int rtc_isenabled(void) -{ - return rtc_inited; -} - -/* - struct tm - tm_sec seconds after the minute 0-61 - tm_min minutes after the hour 0-59 - tm_hour hours since midnight 0-23 - tm_mday day of the month 1-31 - tm_mon months since January 0-11 - tm_year years since 1900 - tm_wday days since Sunday 0-6 - tm_yday days since January 1 0-365 - tm_isdst Daylight Saving Time flag -*/ - -time_t rtc_read(void) -{ - if (! rtc_inited) { - rtc_init(); - } - - S_RTC_TIME_DATA_T rtc_datetime; - RTC_GetDateAndTime(&rtc_datetime); - - struct tm timeinfo; - - // Convert struct tm to S_RTC_TIME_DATA_T - timeinfo.tm_year = rtc_datetime.u32Year - YEAR0; - timeinfo.tm_mon = rtc_datetime.u32Month - 1; - timeinfo.tm_mday = rtc_datetime.u32Day; - timeinfo.tm_wday = rtc_datetime.u32DayOfWeek; - timeinfo.tm_hour = rtc_datetime.u32Hour; - timeinfo.tm_min = rtc_datetime.u32Minute; - timeinfo.tm_sec = rtc_datetime.u32Second; - - // Convert to timestamp - time_t t = mktime(&timeinfo); - - return t; -} - -void rtc_write(time_t t) -{ - if (! rtc_inited) { - rtc_init(); - } - - // Convert timestamp to struct tm - struct tm *timeinfo = localtime(&t); - - S_RTC_TIME_DATA_T rtc_datetime; - - // Convert S_RTC_TIME_DATA_T to struct tm - rtc_datetime.u32Year = timeinfo->tm_year + YEAR0; - rtc_datetime.u32Month = timeinfo->tm_mon + 1; - rtc_datetime.u32Day = timeinfo->tm_mday; - rtc_datetime.u32DayOfWeek = timeinfo->tm_wday; - rtc_datetime.u32Hour = timeinfo->tm_hour; - rtc_datetime.u32Minute = timeinfo->tm_min; - rtc_datetime.u32Second = timeinfo->tm_sec; - rtc_datetime.u32TimeScale = RTC_CLOCK_24; - - // NOTE: Timing issue with write to RTC registers. This delay is empirical, not rational. - RTC_SetDateAndTime(&rtc_datetime); - //nu_nop(6000); - wait_us(100); -} - -#endif