mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

platform/mbed_rtc_time.cpp@186:707f6e361f3e, 2018-06-22 (annotated)

Committer:
Anna Bridge
Date:
Fri Jun 22 16:45:37 2018 +0100
Revision:
186:707f6e361f3e
Parent:
175:af195413fb11
Child:
187:0387e8f68319
mbed-dev library. Release version 162

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
<> 160:d5399cc887bb 18 #include "platform/mbed_critical.h"
<> 160:d5399cc887bb 19 #include "platform/mbed_rtc_time.h"
<> 149:156823d33999 20 #include "platform/SingletonPtr.h"
<> 149:156823d33999 21 #include "platform/PlatformMutex.h"
<> 149:156823d33999 22
<> 149:156823d33999 23 static SingletonPtr<PlatformMutex> _mutex;
<> 149:156823d33999 24
<> 149:156823d33999 25 #if DEVICE_RTC
Anna Bridge 186:707f6e361f3e 26
<> 149:156823d33999 27 static void (*_rtc_init)(void) = rtc_init;
<> 149:156823d33999 28 static int (*_rtc_isenabled)(void) = rtc_isenabled;
<> 149:156823d33999 29 static time_t (*_rtc_read)(void) = rtc_read;
<> 149:156823d33999 30 static void (*_rtc_write)(time_t t) = rtc_write;
Anna Bridge 186:707f6e361f3e 31
Anna Bridge 186:707f6e361f3e 32 #elif DEVICE_LPTICKER
Anna Bridge 186:707f6e361f3e 33
Anna Bridge 186:707f6e361f3e 34 #include "drivers/LowPowerTimer.h"
Anna Bridge 186:707f6e361f3e 35
Anna Bridge 186:707f6e361f3e 36 static SingletonPtr<mbed::LowPowerTimer> _rtc_lp_timer;
Anna Bridge 186:707f6e361f3e 37 static uint64_t _rtc_lp_base;
Anna Bridge 186:707f6e361f3e 38 static bool _rtc_enabled;
Anna Bridge 186:707f6e361f3e 39
Anna Bridge 186:707f6e361f3e 40 static void _rtc_lpticker_init(void)
Anna Bridge 186:707f6e361f3e 41 {
Anna Bridge 186:707f6e361f3e 42 _rtc_lp_timer->start();
Anna Bridge 186:707f6e361f3e 43 _rtc_enabled = true;
Anna Bridge 186:707f6e361f3e 44 }
Anna Bridge 186:707f6e361f3e 45
Anna Bridge 186:707f6e361f3e 46 static int _rtc_lpticker_isenabled(void)
Anna Bridge 186:707f6e361f3e 47 {
Anna Bridge 186:707f6e361f3e 48 return (_rtc_enabled == true);
Anna Bridge 186:707f6e361f3e 49 }
Anna Bridge 186:707f6e361f3e 50
Anna Bridge 186:707f6e361f3e 51 static time_t _rtc_lpticker_read(void)
Anna Bridge 186:707f6e361f3e 52 {
Anna Bridge 186:707f6e361f3e 53 return (uint64_t)_rtc_lp_timer->read() + _rtc_lp_base;
Anna Bridge 186:707f6e361f3e 54 }
Anna Bridge 186:707f6e361f3e 55
Anna Bridge 186:707f6e361f3e 56 static void _rtc_lpticker_write(time_t t)
Anna Bridge 186:707f6e361f3e 57 {
Anna Bridge 186:707f6e361f3e 58 _rtc_lp_base = t;
Anna Bridge 186:707f6e361f3e 59 }
Anna Bridge 186:707f6e361f3e 60
Anna Bridge 186:707f6e361f3e 61 static void (*_rtc_init)(void) = _rtc_lpticker_init;
Anna Bridge 186:707f6e361f3e 62 static int (*_rtc_isenabled)(void) = _rtc_lpticker_isenabled;
Anna Bridge 186:707f6e361f3e 63 static time_t (*_rtc_read)(void) = _rtc_lpticker_read;
Anna Bridge 186:707f6e361f3e 64 static void (*_rtc_write)(time_t t) = _rtc_lpticker_write;
Anna Bridge 186:707f6e361f3e 65
Anna Bridge 186:707f6e361f3e 66 #else /* DEVICE_LPTICKER */
Anna Bridge 186:707f6e361f3e 67
<> 149:156823d33999 68 static void (*_rtc_init)(void) = NULL;
<> 149:156823d33999 69 static int (*_rtc_isenabled)(void) = NULL;
<> 149:156823d33999 70 static time_t (*_rtc_read)(void) = NULL;
<> 149:156823d33999 71 static void (*_rtc_write)(time_t t) = NULL;
Anna Bridge 186:707f6e361f3e 72 #endif /* DEVICE_LPTICKER */
<> 149:156823d33999 73
<> 149:156823d33999 74 #ifdef __cplusplus
<> 149:156823d33999 75 extern "C" {
<> 149:156823d33999 76 #endif
<> 149:156823d33999 77 #if defined (__ICCARM__)
<> 149:156823d33999 78 time_t __time32(time_t *timer)
<> 149:156823d33999 79 #else
<> 149:156823d33999 80 time_t time(time_t *timer)
<> 149:156823d33999 81 #endif
<> 149:156823d33999 82
<> 149:156823d33999 83 {
<> 149:156823d33999 84 _mutex->lock();
<> 149:156823d33999 85 if (_rtc_isenabled != NULL) {
<> 149:156823d33999 86 if (!(_rtc_isenabled())) {
<> 149:156823d33999 87 set_time(0);
<> 149:156823d33999 88 }
<> 149:156823d33999 89 }
<> 149:156823d33999 90
Kojto 169:e3b6fe271b81 91 time_t t = (time_t)-1;
<> 149:156823d33999 92 if (_rtc_read != NULL) {
<> 149:156823d33999 93 t = _rtc_read();
<> 149:156823d33999 94 }
<> 149:156823d33999 95
<> 149:156823d33999 96 if (timer != NULL) {
<> 149:156823d33999 97 *timer = t;
<> 149:156823d33999 98 }
<> 149:156823d33999 99 _mutex->unlock();
<> 149:156823d33999 100 return t;
<> 149:156823d33999 101 }
<> 149:156823d33999 102
<> 149:156823d33999 103 void set_time(time_t t) {
<> 149:156823d33999 104 _mutex->lock();
<> 149:156823d33999 105 if (_rtc_init != NULL) {
<> 149:156823d33999 106 _rtc_init();
<> 149:156823d33999 107 }
<> 149:156823d33999 108 if (_rtc_write != NULL) {
<> 149:156823d33999 109 _rtc_write(t);
<> 149:156823d33999 110 }
<> 149:156823d33999 111 _mutex->unlock();
<> 149:156823d33999 112 }
<> 149:156823d33999 113
<> 149:156823d33999 114 void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void)) {
<> 149:156823d33999 115 _mutex->lock();
<> 149:156823d33999 116 _rtc_read = read_rtc;
<> 149:156823d33999 117 _rtc_write = write_rtc;
<> 149:156823d33999 118 _rtc_init = init_rtc;
<> 149:156823d33999 119 _rtc_isenabled = isenabled_rtc;
<> 149:156823d33999 120 _mutex->unlock();
<> 149:156823d33999 121 }
<> 149:156823d33999 122
<> 149:156823d33999 123
<> 149:156823d33999 124
<> 149:156823d33999 125 #ifdef __cplusplus
<> 149:156823d33999 126 }
<> 149:156823d33999 127 #endif