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xiaozhengsheng
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components/802_15_4/api/MAC/mac_task_scheduler.h
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components/802_15_4/api/MAC/mac_task_scheduler.h
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/**
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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 MAC_TASK_SCHEDULER_H_INCLUDED
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#define MAC_TASK_SCHEDULER_H_INCLUDED
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#include <stdint.h>
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#include "sys_queue.h"
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#include "sys_time.h"
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/** @file
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*
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* @defgroup mac_task_scheduler MAC task scheduler
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* @ingroup mac_15_4
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* @{
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* @brief Module for MAC task scheduling.
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*/
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/**@brief Identifiers for external requests.
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*/
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typedef enum
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{
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#if (CONFIG_PURGE_ENABLED == 1)
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MAC_PURGE_REQ_ID,
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#endif
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#if (CONFIG_ASSOCIATE_REQ_ENABLED == 1)
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MAC_ASSOCIATE_REQ_ID,
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#endif
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#if (CONFIG_DISASSOCIATE_ENABLED == 1)
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MAC_DISASSOCIATE_REQ_ID,
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#endif
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MAC_GET_REQ_ID,
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#if (CONFIG_GTS_ENABLED == 1)
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MAC_GTS_REQ_ID,
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#endif
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MAC_RESET_REQ_ID,
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#if (CONFIG_RXE_ENABLED == 1)
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MAC_RX_ENABLE_REQ_ID,
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#endif
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MAC_SCAN_REQ_ID,
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MAC_SET_REQ_ID,
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#if (CONFIG_SYNC_REQ_ENABLED == 1)
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MAC_SYNC_REQ_ID,
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#endif
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MAC_POLL_REQ_ID,
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#if (CONFIG_START_ENABLED == 1)
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MAC_START_REQ_ID,
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#endif
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MAC_DATA_REQ_ID,
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#if (CONFIG_ORPHAN_ENABLED == 1)
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MAC_ORPHAN_RESP_ID,
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#endif
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MAC_REQS_AMOUNT
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} mac_req_id_t;
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/**@brief Identifiers for internal handlers.
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*
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* These handlers are used for private MAC task scheduling.
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*/
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typedef enum
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{
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#if (CONFIG_FFD_DEVICE == 1) && (CONFIG_BEACON_ENABLED == 1)
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MAC_SUPERFRAME_OUT_TASK_ID,
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#endif
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MAC_CSMA_CA_TASK_ID,
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#if (CONFIG_START_ENABLED == 1)
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MAC_START_TASK_ID,
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#endif
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MAC_FP_TX_TASK_ID,
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MAC_DATA_DIR_CONF_ID,
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#if (CONFIG_INDIRECT_ENGINE_ENABLED == 1)
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MAC_INDIR_ENGINE_REQ_ID,
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#endif
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MAC_FP_RX_TASK_ID,
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#if (CONFIG_ORPHAN_ENABLED == 1)
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MAC_ORPHAN_IND_ID,
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#endif
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#if (CONFIG_DISASSOCIATE_ENABLED == 1)
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MAC_DISASSOC_IND_ID,
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#endif
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#if (CONFIG_SYNC_ENABLED == 1)
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MAC_SYNC_LOSS_IND_ID,
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#endif
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MAC_GET_CONF_ID,
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MAC_SET_CONF_ID,
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MAC_REQ_QUEUE_TASK_ID,
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MAC_POLL_TASK_ID,
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MAC_SCAN_CONF_ID,
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MAC_MEM_ALLOCATOR_TASK_ID,
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MAC_TASKS_AMOUNT
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} mac_task_id_t;
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/**@brief MAC request descriptor.
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*/
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typedef struct
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{
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sys_queue_item_t item;
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mac_req_id_t id;
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void * p_conf_cb; //pointer to confirmation primitive
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} mac_abstract_req_t;
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/**@brief scheduler memory.
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*/
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typedef struct
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{
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sys_queue_t outer_req_queue;
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volatile uint32_t pending_tasks;
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bool mac_scheduler_busy;
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} mac_scheduler_mem_t;
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/**@brief MAC task handler prototype.
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*
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* @details Handler which will be called by the MAC scheduler.
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*/
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typedef void (* mac_task_handler_t)(void);
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/**@brief MAC external requests queue task handler prototype.
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*
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* @details Handler which will be called by the MAC scheduler inside
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* corresponding task handler.
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*/
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typedef void (* mac_req_handler_t)(mac_abstract_req_t *);
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/**@brief Initialize MAC scheduler.
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*
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* @details Clean up MAC request's queue.
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*/
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void mac_init(void);
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/**@brief MAC task handler.
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*
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* @details Handler invokes a MAC primitives routine for a request according to
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* the requests identification.
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*/
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void mac_task_handler(void);
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/**@brief Scheduler request from some MAC primitive.
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*
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* @details Place request to MAC scheduler queue for a further handling.
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*
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* @param[in] p_req Pointer to a request structure.
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*/
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void mac_request_schedule(mac_abstract_req_t * p_req);
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/**@brief Internal function of MAC API.
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*
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* This function is used to post tasks between MAC primitives.
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*
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* @param[in] id MAC task ID.
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*
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*/
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void mac_internal_task_post(mac_task_id_t id);
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/**@brief Internal function of MAC API.
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*
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* Notifies mac scheduler that incoming request has been completely
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* served and may be safely removed from MAC task queue.
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*
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* @param[in] p_req Pointer to a request structure.
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*/
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void mac_close_request(mac_abstract_req_t * p_req);
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/** @} */
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#endif // MAC_TASK_SCHEDULER_H_INCLUDED
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