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- /**
- * Copyright (c) 2016 - 2020 Nordic Semiconductor ASA and Luxoft Global Operations Gmbh.
- *
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form, except as embedded into a Nordic
- * Semiconductor ASA integrated circuit in a product or a software update for
- * such product, must reproduce the above copyright notice, this list of
- * conditions and the following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * 4. This software, with or without modification, must only be used with a
- * Nordic Semiconductor ASA integrated circuit.
- *
- * 5. Any software provided in binary form under this license must not be reverse
- * engineered, decompiled, modified and/or disassembled.
- *
- *
- * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- #ifndef SYS_TASK_SCHEDULER_H_INCLUDED
- #define SYS_TASK_SCHEDULER_H_INCLUDED
- #include <stdint.h>
- #include <stdbool.h>
- #include "sys_utils.h"
- #include "hal_atomic.h"
- #include "sys_events.h"
- /** @file
- * @defgroup sys_task_scheduler Task scheduler
- * @ingroup sys_15_4
- * @{
- * @brief Module for task scheduling.
- */
- /**@brief Identificators for registered handlers.
- *
- * Handlers will be called from the task scheduler.
- */
- typedef enum
- {
- PHY_TASK_ID,
- HAL_TASK_ID,
- #if (CONFIG_HIGHEST_LAYER_PHY == 0)
- MAC_TASK_ID,
- #endif
- APP_TASK_ID,
- SYS_TASK_ID,
- SYS_TASKS_AMOUNT
- } sys_task_ids_t;
- /**@brief Prototype of a task handler.
- *
- * @details Handler which will be called by the scheduler.
- */
- typedef void (* sys_task_handler_t)(void);
- /**@brief Pending tasks.
- *
- * @details Variable which includes markers of pending tasks.
- */
- extern volatile uint_fast16_t g_tasks;
- /**@brief Notify task scheduler to add a task for execution.
- *
- * @details The function sets a marker for the task for execution.
- * The task handler implements a tree architecture.
- * Task handler of each layer includes handlers of the layer's components.
- *
- * @param[in] task_id Task identificator.
- */
- static inline void sys_task_post(sys_task_ids_t task_id)
- {
- atomic_t atomic = 0;
- hal_atomic_start(&atomic);
- g_tasks |= BIT(task_id);
- #if (CONFIG_USE_SYS_TASK_NOTIFIER == 1)
- sys_event_post(SYS_EVENT_NEW_TASK, NULL);
- #endif
- hal_atomic_end(&atomic);
- }
- /**@brief Returns true, if there are any event flags awaiting in the system scheduler.
- */
- static inline bool sys_tasks_pending(void)
- {
- return g_tasks != 0;
- }
- /**@brief Handle tasks in the main function.
- *
- * @details Handle tasks in the main function.
- */
- void sys_task_run(void);
- /** @} */
- #endif // SYS_TASK_SCHEDULER_H_INCLUDED
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