mirror of https://github.com/ARMmbed/mbed-os.git
123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
/*
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* Copyright (c) 2014-2018, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* 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, WITHOUT
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* 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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/**
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* \file nfc_scheduler.h
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* \copyright Copyright (c) ARM Ltd 2014
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* \author Donatien Garnier
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*/
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/** \addtogroup Core
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* @{
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* \name Scheduler
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* @{
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*/
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#ifndef NFC_SCHEDULER_H_
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#define NFC_SCHEDULER_H_
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#include "stack/nfc_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define EVENT_NONE 0
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#define EVENT_TIMEOUT 1
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#define EVENT_ABORTED 2
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#define EVENT_HW_INTERRUPT 4
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struct __nfc_timer;
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typedef struct __nfc_timer nfc_scheduler_timer_t;
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struct __nfc_task;
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typedef struct __nfc_task nfc_task_t;
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typedef struct __scheduler {
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nfc_task_t *pNext;
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nfc_scheduler_timer_t *pTimer;
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} nfc_scheduler_t;
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typedef void (*nfc_task_fn)(uint32_t events, void *pUserData);
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struct __nfc_task {
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uint32_t events;
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int64_t timeout; //millisecs
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int64_t timeoutInitial;
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nfc_task_fn fn;
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void *pUserData;
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nfc_task_t *pNext;
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};
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void nfc_scheduler_timer_init(nfc_scheduler_timer_t *timer);
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void nfc_scheduler_timer_start(nfc_scheduler_timer_t *timer);
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uint32_t nfc_scheduler_timer_get(nfc_scheduler_timer_t *timer);
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void nfc_scheduler_timer_stop(nfc_scheduler_timer_t *timer);
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void nfc_scheduler_timer_reset(nfc_scheduler_timer_t *timer);
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/** Init scheduler
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* \param pScheduler scheduler instance to init
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* \param pTimer timer instance
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*/
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void nfc_scheduler_init(nfc_scheduler_t *pScheduler, nfc_scheduler_timer_t *pTimer);
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/** Iterate through all tasks
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* \param pScheduler scheduler instance
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* \param events mask of events (except EVENT_TIMEOUT) that have been raised since this function last returned (0 on first call)
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* \return time after which this function must be called again if no other event arises
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*/
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uint32_t nfc_scheduler_iteration(nfc_scheduler_t *pScheduler, uint32_t events);
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/** Queue a task to execute
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* \param pScheduler scheduler instance
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* \param pTask task to queue
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*
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*/
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void nfc_scheduler_queue_task(nfc_scheduler_t *pScheduler, nfc_task_t *pTask);
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/** Remove a task to execute
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* \param pScheduler scheduler instance
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* \param pTask task to remove
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* \param abort abort task if queued
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*/
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void nfc_scheduler_dequeue_task(nfc_scheduler_t *pScheduler, bool abort, nfc_task_t *pTask);
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/** Initialize task with the following parameters
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* \param pTask task to initialize
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* \param events events on which to call task
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* \param timeout if relevant
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* \param fn function to be called
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* \param pUserData data that will be passed to function
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*/
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void task_init(nfc_task_t *pTask, uint32_t events, uint32_t timeout, nfc_task_fn fn, void *pUserData);
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#ifdef __cplusplus
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}
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#endif
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#endif /* NFC_SCHEDULER_H_ */
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/**
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* @}
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* @}
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* */
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