Umar Naeem / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by Umar Naeem

platform/mbed_rtc_time.cpp@165:2dd56e6daeec, 2017-05-23 (annotated)

Committer:
ranaumarnaeem
Date:
Tue May 23 12:54:50 2017 +0000
Revision:
165:2dd56e6daeec
Parent:
160:d5399cc887bb 
jhjg

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /* mbed Microcontroller Library
<> 149:156823d33999 2 * Copyright (c) 2006-2013 ARM Limited
<> 149:156823d33999 3 *
<> 149:156823d33999 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 149:156823d33999 5 * you may not use this file except in compliance with the License.
<> 149:156823d33999 6 * You may obtain a copy of the License at
<> 149:156823d33999 7 *
<> 149:156823d33999 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 149:156823d33999 9 *
<> 149:156823d33999 10 * Unless required by applicable law or agreed to in writing, software
<> 149:156823d33999 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 149:156823d33999 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 149:156823d33999 13 * See the License for the specific language governing permissions and
<> 149:156823d33999 14 * limitations under the License.
<> 149:156823d33999 15 */
<> 149:156823d33999 16 #include "hal/rtc_api.h"
<> 149:156823d33999 17
<> 149:156823d33999 18 #include <time.h>
<> 160:d5399cc887bb 19 #include "platform/mbed_critical.h"
<> 160:d5399cc887bb 20 #include "platform/mbed_rtc_time.h"
<> 149:156823d33999 21 #include "hal/us_ticker_api.h"
<> 149:156823d33999 22 #include "platform/SingletonPtr.h"
<> 149:156823d33999 23 #include "platform/PlatformMutex.h"
<> 149:156823d33999 24
<> 149:156823d33999 25 static SingletonPtr<PlatformMutex> _mutex;
<> 149:156823d33999 26
<> 149:156823d33999 27 #if DEVICE_RTC
<> 149:156823d33999 28 static void (*_rtc_init)(void) = rtc_init;
<> 149:156823d33999 29 static int (*_rtc_isenabled)(void) = rtc_isenabled;
<> 149:156823d33999 30 static time_t (*_rtc_read)(void) = rtc_read;
<> 149:156823d33999 31 static void (*_rtc_write)(time_t t) = rtc_write;
<> 149:156823d33999 32 #else
<> 149:156823d33999 33 static void (*_rtc_init)(void) = NULL;
<> 149:156823d33999 34 static int (*_rtc_isenabled)(void) = NULL;
<> 149:156823d33999 35 static time_t (*_rtc_read)(void) = NULL;
<> 149:156823d33999 36 static void (*_rtc_write)(time_t t) = NULL;
<> 149:156823d33999 37 #endif
<> 149:156823d33999 38
<> 149:156823d33999 39 #ifdef __cplusplus
<> 149:156823d33999 40 extern "C" {
<> 149:156823d33999 41 #endif
<> 149:156823d33999 42 #if defined (__ICCARM__)
<> 149:156823d33999 43 time_t __time32(time_t *timer)
<> 149:156823d33999 44 #else
<> 149:156823d33999 45 time_t time(time_t *timer)
<> 149:156823d33999 46 #endif
<> 149:156823d33999 47
<> 149:156823d33999 48 {
<> 149:156823d33999 49 _mutex->lock();
<> 149:156823d33999 50 if (_rtc_isenabled != NULL) {
<> 149:156823d33999 51 if (!(_rtc_isenabled())) {
<> 149:156823d33999 52 set_time(0);
<> 149:156823d33999 53 }
<> 149:156823d33999 54 }
<> 149:156823d33999 55
<> 149:156823d33999 56 time_t t = 0;
<> 149:156823d33999 57 if (_rtc_read != NULL) {
<> 149:156823d33999 58 t = _rtc_read();
<> 149:156823d33999 59 }
<> 149:156823d33999 60
<> 149:156823d33999 61 if (timer != NULL) {
<> 149:156823d33999 62 *timer = t;
<> 149:156823d33999 63 }
<> 149:156823d33999 64 _mutex->unlock();
<> 149:156823d33999 65 return t;
<> 149:156823d33999 66 }
<> 149:156823d33999 67
<> 149:156823d33999 68 void set_time(time_t t) {
<> 149:156823d33999 69 _mutex->lock();
<> 149:156823d33999 70 if (_rtc_init != NULL) {
<> 149:156823d33999 71 _rtc_init();
<> 149:156823d33999 72 }
<> 149:156823d33999 73 if (_rtc_write != NULL) {
<> 149:156823d33999 74 _rtc_write(t);
<> 149:156823d33999 75 }
<> 149:156823d33999 76 _mutex->unlock();
<> 149:156823d33999 77 }
<> 149:156823d33999 78
<> 149:156823d33999 79 clock_t clock() {
<> 149:156823d33999 80 _mutex->lock();
<> 149:156823d33999 81 clock_t t = us_ticker_read();
<> 149:156823d33999 82 t /= 1000000 / CLOCKS_PER_SEC; // convert to processor time
<> 149:156823d33999 83 _mutex->unlock();
<> 149:156823d33999 84 return t;
<> 149:156823d33999 85 }
<> 149:156823d33999 86
<> 149:156823d33999 87 void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void)) {
<> 149:156823d33999 88 _mutex->lock();
<> 149:156823d33999 89 _rtc_read = read_rtc;
<> 149:156823d33999 90 _rtc_write = write_rtc;
<> 149:156823d33999 91 _rtc_init = init_rtc;
<> 149:156823d33999 92 _rtc_isenabled = isenabled_rtc;
<> 149:156823d33999 93 _mutex->unlock();
<> 149:156823d33999 94 }
<> 149:156823d33999 95
<> 149:156823d33999 96
<> 149:156823d33999 97
<> 149:156823d33999 98 #ifdef __cplusplus
<> 149:156823d33999 99 }
<> 149:156823d33999 100 #endif