Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/drivers/Ticker.cpp@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 2 * Copyright (c) 2006-2013 ARM Limited
marcozecchini 0:9fca2b23d0ba 3 *
marcozecchini 0:9fca2b23d0ba 4 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 5 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 6 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 7 *
marcozecchini 0:9fca2b23d0ba 8 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 9 *
marcozecchini 0:9fca2b23d0ba 10 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 11 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 13 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 14 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 15 */
marcozecchini 0:9fca2b23d0ba 16 #include "drivers/Ticker.h"
marcozecchini 0:9fca2b23d0ba 17
marcozecchini 0:9fca2b23d0ba 18 #include "drivers/TimerEvent.h"
marcozecchini 0:9fca2b23d0ba 19 #include "platform/FunctionPointer.h"
marcozecchini 0:9fca2b23d0ba 20 #include "hal/ticker_api.h"
marcozecchini 0:9fca2b23d0ba 21 #include "platform/mbed_critical.h"
marcozecchini 0:9fca2b23d0ba 22
marcozecchini 0:9fca2b23d0ba 23 namespace mbed {
marcozecchini 0:9fca2b23d0ba 24
marcozecchini 0:9fca2b23d0ba 25 void Ticker::detach() {
marcozecchini 0:9fca2b23d0ba 26 core_util_critical_section_enter();
marcozecchini 0:9fca2b23d0ba 27 remove();
marcozecchini 0:9fca2b23d0ba 28 // unlocked only if we were attached (we locked it) and this is not low power ticker
marcozecchini 0:9fca2b23d0ba 29 if(_function && _lock_deepsleep) {
marcozecchini 0:9fca2b23d0ba 30 sleep_manager_unlock_deep_sleep();
marcozecchini 0:9fca2b23d0ba 31 }
marcozecchini 0:9fca2b23d0ba 32
marcozecchini 0:9fca2b23d0ba 33 _function = 0;
marcozecchini 0:9fca2b23d0ba 34 core_util_critical_section_exit();
marcozecchini 0:9fca2b23d0ba 35 }
marcozecchini 0:9fca2b23d0ba 36
marcozecchini 0:9fca2b23d0ba 37 void Ticker::setup(us_timestamp_t t) {
marcozecchini 0:9fca2b23d0ba 38 core_util_critical_section_enter();
marcozecchini 0:9fca2b23d0ba 39 remove();
marcozecchini 0:9fca2b23d0ba 40 _delay = t;
marcozecchini 0:9fca2b23d0ba 41 insert_absolute(_delay + ticker_read_us(_ticker_data));
marcozecchini 0:9fca2b23d0ba 42 core_util_critical_section_exit();
marcozecchini 0:9fca2b23d0ba 43 }
marcozecchini 0:9fca2b23d0ba 44
marcozecchini 0:9fca2b23d0ba 45 void Ticker::handler() {
marcozecchini 0:9fca2b23d0ba 46 insert_absolute(event.timestamp + _delay);
marcozecchini 0:9fca2b23d0ba 47 if (_function) {
marcozecchini 0:9fca2b23d0ba 48 _function();
marcozecchini 0:9fca2b23d0ba 49 }
marcozecchini 0:9fca2b23d0ba 50 }
marcozecchini 0:9fca2b23d0ba 51
marcozecchini 0:9fca2b23d0ba 52 } // namespace mbed