125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/**
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* Copyright (c) 2016 - 2020 Nordic Semiconductor ASA and Luxoft Global Operations Gmbh.
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*
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* All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef HAL_TASK_H_INCLUDED
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#define HAL_TASK_H_INCLUDED
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#include <stdint.h>
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#include "hal_atomic.h"
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#include "sys_utils.h"
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#include "sys_task_scheduler.h"
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/**
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* @defgroup hal_task HAL Tasks
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* @ingroup hal_15_4
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* @{
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* @brief Module to declare HAL tasks library
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*/
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/**@brief Identifiers for registered HAL handlers.
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*
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* @details enumeration with identifiers of registered HAL handlers.
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* HAL handlers will be called from the HAL task.
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*/
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typedef enum
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{
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HAL_TIMER_TASK_ID,
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HAL_UART_TASK_ID,
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HAL_TIMER_CRITICAL_MANUAL_TASK,
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HAL_TASKS_AMOUNT,
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} hal_task_id_t;
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/**@brief Prototype of a HAL task handler.
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*
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* @details Handler which will be called from HAL task.
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*/
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typedef void (* hal_task_handler_t)(void);
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void hal_task_handler(void);
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void hal_timer_task_handler(void);
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void hal_uart_task_handler(void);
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void hal_timer_critical_manual_handler(void);
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/**@brief Pending HAL tasks.
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*
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* @details Variable which includes markers of pending HAL tasks.
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*/
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extern volatile uint_fast16_t g_hal_tasks;
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/**@brief Notify task scheduler to add a HAL task for execution.
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*
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* @details The function sets a marker for the HAL task for execution.
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*
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* @param[in] hal_task_id HAL task identifier (see \ref hal_task_id_t enumeration).
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*/
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static inline void hal_task_post(hal_task_id_t hal_task_id)
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{
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atomic_t atomic = 0;
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hal_atomic_start(&atomic);
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g_hal_tasks |= BIT(hal_task_id);
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hal_atomic_end(&atomic);
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sys_task_post(HAL_TASK_ID);
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}
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/**@brief Removes a task from pending list in HAL task scheduler.
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*
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* @details The function removes a marker from the HAL execution list.
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*
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* @param[in] hal_task_id HAL task identifier (see \ref hal_task_id_t enumeration).
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*/
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static inline void hal_task_unpost(hal_task_id_t hal_task_id)
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{
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atomic_t atomic = 0;
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hal_atomic_start(&atomic);
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g_hal_tasks &= ~BIT(hal_task_id);
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hal_atomic_end(&atomic);
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}
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/** @} */
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#endif // HAL_TASK_H_INCLUDED
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