EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

platform/mbed_rtc_time.cpp@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2006-2013 ARM Limited
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 5 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 6 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 7 *
be_bryan 0:b74591d5ab33 8 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 9 *
be_bryan 0:b74591d5ab33 10 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 11 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 13 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 14 * limitations under the License.
be_bryan 0:b74591d5ab33 15 */
be_bryan 0:b74591d5ab33 16 #include "hal/rtc_api.h"
be_bryan 0:b74591d5ab33 17
be_bryan 0:b74591d5ab33 18 #include "platform/mbed_critical.h"
be_bryan 0:b74591d5ab33 19 #include "platform/mbed_rtc_time.h"
be_bryan 0:b74591d5ab33 20 #include "platform/SingletonPtr.h"
be_bryan 0:b74591d5ab33 21 #include "platform/PlatformMutex.h"
be_bryan 0:b74591d5ab33 22
be_bryan 0:b74591d5ab33 23 static SingletonPtr<PlatformMutex> _mutex;
be_bryan 0:b74591d5ab33 24
be_bryan 0:b74591d5ab33 25 #if DEVICE_RTC
be_bryan 0:b74591d5ab33 26 static void (*_rtc_init)(void) = rtc_init;
be_bryan 0:b74591d5ab33 27 static int (*_rtc_isenabled)(void) = rtc_isenabled;
be_bryan 0:b74591d5ab33 28 static time_t (*_rtc_read)(void) = rtc_read;
be_bryan 0:b74591d5ab33 29 static void (*_rtc_write)(time_t t) = rtc_write;
be_bryan 0:b74591d5ab33 30 #else
be_bryan 0:b74591d5ab33 31 static void (*_rtc_init)(void) = NULL;
be_bryan 0:b74591d5ab33 32 static int (*_rtc_isenabled)(void) = NULL;
be_bryan 0:b74591d5ab33 33 static time_t (*_rtc_read)(void) = NULL;
be_bryan 0:b74591d5ab33 34 static void (*_rtc_write)(time_t t) = NULL;
be_bryan 0:b74591d5ab33 35 #endif
be_bryan 0:b74591d5ab33 36
be_bryan 0:b74591d5ab33 37 #ifdef __cplusplus
be_bryan 0:b74591d5ab33 38 extern "C" {
be_bryan 0:b74591d5ab33 39 #endif
be_bryan 0:b74591d5ab33 40 #if defined (__ICCARM__)
be_bryan 0:b74591d5ab33 41 time_t __time32(time_t *timer)
be_bryan 0:b74591d5ab33 42 #else
be_bryan 0:b74591d5ab33 43 time_t time(time_t *timer)
be_bryan 0:b74591d5ab33 44 #endif
be_bryan 0:b74591d5ab33 45
be_bryan 0:b74591d5ab33 46 {
be_bryan 0:b74591d5ab33 47 _mutex->lock();
be_bryan 0:b74591d5ab33 48 if (_rtc_isenabled != NULL) {
be_bryan 0:b74591d5ab33 49 if (!(_rtc_isenabled())) {
be_bryan 0:b74591d5ab33 50 set_time(0);
be_bryan 0:b74591d5ab33 51 }
be_bryan 0:b74591d5ab33 52 }
be_bryan 0:b74591d5ab33 53
be_bryan 0:b74591d5ab33 54 time_t t = (time_t)-1;
be_bryan 0:b74591d5ab33 55 if (_rtc_read != NULL) {
be_bryan 0:b74591d5ab33 56 t = _rtc_read();
be_bryan 0:b74591d5ab33 57 }
be_bryan 0:b74591d5ab33 58
be_bryan 0:b74591d5ab33 59 if (timer != NULL) {
be_bryan 0:b74591d5ab33 60 *timer = t;
be_bryan 0:b74591d5ab33 61 }
be_bryan 0:b74591d5ab33 62 _mutex->unlock();
be_bryan 0:b74591d5ab33 63 return t;
be_bryan 0:b74591d5ab33 64 }
be_bryan 0:b74591d5ab33 65
be_bryan 0:b74591d5ab33 66 void set_time(time_t t) {
be_bryan 0:b74591d5ab33 67 _mutex->lock();
be_bryan 0:b74591d5ab33 68 if (_rtc_init != NULL) {
be_bryan 0:b74591d5ab33 69 _rtc_init();
be_bryan 0:b74591d5ab33 70 }
be_bryan 0:b74591d5ab33 71 if (_rtc_write != NULL) {
be_bryan 0:b74591d5ab33 72 _rtc_write(t);
be_bryan 0:b74591d5ab33 73 }
be_bryan 0:b74591d5ab33 74 _mutex->unlock();
be_bryan 0:b74591d5ab33 75 }
be_bryan 0:b74591d5ab33 76
be_bryan 0:b74591d5ab33 77 void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void)) {
be_bryan 0:b74591d5ab33 78 _mutex->lock();
be_bryan 0:b74591d5ab33 79 _rtc_read = read_rtc;
be_bryan 0:b74591d5ab33 80 _rtc_write = write_rtc;
be_bryan 0:b74591d5ab33 81 _rtc_init = init_rtc;
be_bryan 0:b74591d5ab33 82 _rtc_isenabled = isenabled_rtc;
be_bryan 0:b74591d5ab33 83 _mutex->unlock();
be_bryan 0:b74591d5ab33 84 }
be_bryan 0:b74591d5ab33 85
be_bryan 0:b74591d5ab33 86
be_bryan 0:b74591d5ab33 87
be_bryan 0:b74591d5ab33 88 #ifdef __cplusplus
be_bryan 0:b74591d5ab33 89 }
be_bryan 0:b74591d5ab33 90 #endif