mirror of https://github.com/ARMmbed/mbed-os.git
128 lines
3.0 KiB
C++
128 lines
3.0 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2018 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "hal/mbed_lp_ticker_wrapper.h"
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#if DEVICE_LPTICKER && (LPTICKER_DELAY_TICKS > 0)
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#include "hal/LowPowerTickerWrapper.h"
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#include "platform/mbed_critical.h"
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// Do not use SingletonPtr since this must be initialized in a critical section
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static LowPowerTickerWrapper *ticker_wrapper;
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static uint64_t ticker_wrapper_data[(sizeof(LowPowerTickerWrapper) + 7) / 8];
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static bool init = false;
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static void lp_ticker_wrapper_init()
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{
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ticker_wrapper->init();
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}
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static uint32_t lp_ticker_wrapper_read()
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{
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return ticker_wrapper->read();
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}
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static void lp_ticker_wrapper_set_interrupt(timestamp_t timestamp)
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{
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ticker_wrapper->set_interrupt(timestamp);
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}
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static void lp_ticker_wrapper_disable_interrupt()
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{
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ticker_wrapper->disable_interrupt();
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}
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static void lp_ticker_wrapper_clear_interrupt()
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{
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ticker_wrapper->clear_interrupt();
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}
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static void lp_ticker_wrapper_fire_interrupt()
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{
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ticker_wrapper->fire_interrupt();
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}
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static const ticker_info_t *lp_ticker_wrapper_get_info()
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{
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return ticker_wrapper->get_info();
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}
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static void lp_ticker_wrapper_free()
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{
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ticker_wrapper->free();
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}
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static const ticker_interface_t lp_interface = {
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lp_ticker_wrapper_init,
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lp_ticker_wrapper_read,
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lp_ticker_wrapper_disable_interrupt,
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lp_ticker_wrapper_clear_interrupt,
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lp_ticker_wrapper_set_interrupt,
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lp_ticker_wrapper_fire_interrupt,
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lp_ticker_wrapper_free,
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lp_ticker_wrapper_get_info
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};
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void lp_ticker_wrapper_irq_handler(ticker_irq_handler_type handler)
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{
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core_util_critical_section_enter();
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if (!init) {
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// Force ticker to initialize
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get_lp_ticker_data();
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}
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ticker_wrapper->irq_handler(handler);
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core_util_critical_section_exit();
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}
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const ticker_data_t *get_lp_ticker_wrapper_data(const ticker_data_t *data)
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{
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core_util_critical_section_enter();
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if (!init) {
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ticker_wrapper = new (ticker_wrapper_data) LowPowerTickerWrapper(data, &lp_interface, LPTICKER_DELAY_TICKS, LPTICKER_DELAY_TICKS);
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init = true;
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}
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core_util_critical_section_exit();
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return &ticker_wrapper->data;
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}
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void lp_ticker_wrapper_suspend()
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{
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if (!init) {
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// Force ticker to initialize
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get_lp_ticker_data();
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}
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ticker_wrapper->suspend();
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}
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void lp_ticker_wrapper_resume()
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{
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if (!init) {
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// Force ticker to initialize
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get_lp_ticker_data();
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}
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ticker_wrapper->resume();
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}
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#endif
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