Daniel Vizcaya / Mbed OS 04_RTOS_Embebidos

Entrega 3er corte - sistemas embebidos

mbed-os/drivers/Ticker.cpp@1:fcdb45ee95b9, 2018-05-30 (annotated)

Committer:
Bethory
Date:
Wed May 30 04:46:28 2018 +0000
Revision:
1:fcdb45ee95b9
Parent:
0:6ad07c9019fd 
Entrega Final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Bethory 0:6ad07c9019fd 1 /* mbed Microcontroller Library
Bethory 0:6ad07c9019fd 2 * Copyright (c) 2006-2013 ARM Limited
Bethory 0:6ad07c9019fd 3 *
Bethory 0:6ad07c9019fd 4 * Licensed under the Apache License, Version 2.0 (the "License");
Bethory 0:6ad07c9019fd 5 * you may not use this file except in compliance with the License.
Bethory 0:6ad07c9019fd 6 * You may obtain a copy of the License at
Bethory 0:6ad07c9019fd 7 *
Bethory 0:6ad07c9019fd 8 * http://www.apache.org/licenses/LICENSE-2.0
Bethory 0:6ad07c9019fd 9 *
Bethory 0:6ad07c9019fd 10 * Unless required by applicable law or agreed to in writing, software
Bethory 0:6ad07c9019fd 11 * distributed under the License is distributed on an "AS IS" BASIS,
Bethory 0:6ad07c9019fd 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Bethory 0:6ad07c9019fd 13 * See the License for the specific language governing permissions and
Bethory 0:6ad07c9019fd 14 * limitations under the License.
Bethory 0:6ad07c9019fd 15 */
Bethory 0:6ad07c9019fd 16 #include "drivers/Ticker.h"
Bethory 0:6ad07c9019fd 17
Bethory 0:6ad07c9019fd 18 #include "drivers/TimerEvent.h"
Bethory 0:6ad07c9019fd 19 #include "platform/FunctionPointer.h"
Bethory 0:6ad07c9019fd 20 #include "hal/ticker_api.h"
Bethory 0:6ad07c9019fd 21 #include "platform/mbed_critical.h"
Bethory 0:6ad07c9019fd 22
Bethory 0:6ad07c9019fd 23 namespace mbed {
Bethory 0:6ad07c9019fd 24
Bethory 0:6ad07c9019fd 25 void Ticker::detach() {
Bethory 0:6ad07c9019fd 26 core_util_critical_section_enter();
Bethory 0:6ad07c9019fd 27 remove();
Bethory 0:6ad07c9019fd 28 // unlocked only if we were attached (we locked it) and this is not low power ticker
Bethory 0:6ad07c9019fd 29 if(_function && _lock_deepsleep) {
Bethory 0:6ad07c9019fd 30 sleep_manager_unlock_deep_sleep();
Bethory 0:6ad07c9019fd 31 }
Bethory 0:6ad07c9019fd 32
Bethory 0:6ad07c9019fd 33 _function = 0;
Bethory 0:6ad07c9019fd 34 core_util_critical_section_exit();
Bethory 0:6ad07c9019fd 35 }
Bethory 0:6ad07c9019fd 36
Bethory 0:6ad07c9019fd 37 void Ticker::setup(us_timestamp_t t) {
Bethory 0:6ad07c9019fd 38 core_util_critical_section_enter();
Bethory 0:6ad07c9019fd 39 remove();
Bethory 0:6ad07c9019fd 40 _delay = t;
Bethory 0:6ad07c9019fd 41 insert_absolute(_delay + ticker_read_us(_ticker_data));
Bethory 0:6ad07c9019fd 42 core_util_critical_section_exit();
Bethory 0:6ad07c9019fd 43 }
Bethory 0:6ad07c9019fd 44
Bethory 0:6ad07c9019fd 45 void Ticker::handler() {
Bethory 0:6ad07c9019fd 46 insert_absolute(event.timestamp + _delay);
Bethory 0:6ad07c9019fd 47 if (_function) {
Bethory 0:6ad07c9019fd 48 _function();
Bethory 0:6ad07c9019fd 49 }
Bethory 0:6ad07c9019fd 50 }
Bethory 0:6ad07c9019fd 51
Bethory 0:6ad07c9019fd 52 } // namespace mbed