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platform/mbed_rtc_time.cpp
- Committer:
- thedo
- Date:
- 2017-07-04
- Revision:
- 170:54ff26da7eb6
- Parent:
- 167:1657b442184c
File content as of revision 170:54ff26da7eb6:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * 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 "hal/rtc_api.h" #include <time.h> #include "platform/mbed_critical.h" #include "platform/mbed_rtc_time.h" #include "hal/us_ticker_api.h" #include "platform/SingletonPtr.h" #include "platform/PlatformMutex.h" static SingletonPtr<PlatformMutex> _mutex; #if DEVICE_RTC static void (*_rtc_init)(void) = rtc_init; static int (*_rtc_isenabled)(void) = rtc_isenabled; static time_t (*_rtc_read)(void) = rtc_read; static void (*_rtc_write)(time_t t) = rtc_write; #else static void (*_rtc_init)(void) = NULL; static int (*_rtc_isenabled)(void) = NULL; static time_t (*_rtc_read)(void) = NULL; static void (*_rtc_write)(time_t t) = NULL; #endif #ifdef __cplusplus extern "C" { #endif #if defined (__ICCARM__) time_t __time32(time_t *timer) #else time_t time(time_t *timer) #endif { _mutex->lock(); if (_rtc_isenabled != NULL) { if (!(_rtc_isenabled())) { set_time(0); } } time_t t = 0; if (_rtc_read != NULL) { t = _rtc_read(); } if (timer != NULL) { *timer = t; } _mutex->unlock(); return t; } void set_time(time_t t) { _mutex->lock(); if (_rtc_init != NULL) { _rtc_init(); } if (_rtc_write != NULL) { _rtc_write(t); } _mutex->unlock(); } clock_t clock() { _mutex->lock(); clock_t t = us_ticker_read(); t /= 1000000 / CLOCKS_PER_SEC; // convert to processor time _mutex->unlock(); return t; } void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void)) { _mutex->lock(); _rtc_read = read_rtc; _rtc_write = write_rtc; _rtc_init = init_rtc; _rtc_isenabled = isenabled_rtc; _mutex->unlock(); } #ifdef __cplusplus } #endif