/* mbed Microcontroller Library * Copyright (c) 2006-2019 ARM Limited * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "drivers/Ticker.h" #include "drivers/LowPowerTicker.h" #include "hal/us_ticker_api.h" #include "hal/lp_ticker_api.h" #include "platform/CriticalSectionLock.h" #include "platform/mbed_power_mgmt.h" using namespace std::chrono; namespace mbed { TickerBase::TickerBase(const ticker_data_t *data) : TickerBase(data, !data->interface->runs_in_deep_sleep) { } // When low power ticker is in use, then do not disable deep sleep. TickerBase::TickerBase(const ticker_data_t *data, bool lock_deepsleep) : TimerEvent(data), _lock_deepsleep(lock_deepsleep) { } void TickerBase::detach() { CriticalSectionLock lock; remove(); // unlocked only if we were attached (we locked it) and this is not low power ticker if (_function && _lock_deepsleep) { sleep_manager_unlock_deep_sleep(); } _function = 0; } void TickerBase::setup(microseconds t) { remove(); _delay = t; insert_absolute(_ticker_data.now() + t); } void TickerBase::setup_absolute(TickerDataClock::time_point t) { remove(); insert_absolute(t); } void TickerBase::handler() { insert_absolute(get_time_point(event) + _delay); if (_function) { _function(); } } void TickerBase::attach(Callback<void()> func, microseconds t) { CriticalSectionLock lock; // lock only for the initial callback setup and this is not low power ticker if (!_function && _lock_deepsleep) { sleep_manager_lock_deep_sleep(); } _function = func; setup(t); } void TickerBase::attach_us(Callback<void()> func, us_timestamp_t t) { CriticalSectionLock lock; // lock only for the initial callback setup and this is not low power ticker if (!_function && _lock_deepsleep) { sleep_manager_lock_deep_sleep(); } _function = func; setup(microseconds{t}); } void TickerBase::attach_absolute(Callback<void()> func, TickerDataClock::time_point abs_time) { CriticalSectionLock lock; // lock only for the initial callback setup and this is not low power ticker if (!_function && _lock_deepsleep) { sleep_manager_lock_deep_sleep(); } _function = func; setup_absolute(abs_time); } Ticker::Ticker() : TickerBase(get_us_ticker_data(), true) { } #if DEVICE_LPTICKER LowPowerTicker::LowPowerTicker() : TickerBase(get_lp_ticker_data(), false) { } #endif } // namespace mbed