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77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/* Copyright (c) 2014, Nordic Semiconductor ASA
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/** @file
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* @brief Interface for buffer.
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*/
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/** @defgroup aci_queue aci_queue
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@{
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@ingroup aci_queue
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*/
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#ifndef ACI_QUEUE_H__
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#define ACI_QUEUE_H__
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#include "aci.h"
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#include "hal_aci_tl.h"
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/*********************************************************************** */
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/* The ACI_QUEUE_SIZE determines the memory usage of the system. */
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/* Successfully tested to a ACI_QUEUE_SIZE of 4 (interrupt) and 4 (polling) */
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/*********************************************************************** */
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#define ACI_QUEUE_SIZE 4
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/** Data type for queue of data packets to send/receive from radio.
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*
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* A FIFO queue is maintained for packets. New packets are added (enqueued)
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* at the tail and taken (dequeued) from the head. The head variable is the
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* index of the next packet to dequeue while the tail variable is the index of
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* where the next packet should be queued.
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*/
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typedef struct {
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hal_aci_data_t aci_data[ACI_QUEUE_SIZE];
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uint8_t head;
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uint8_t tail;
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} aci_queue_t;
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void aci_queue_init(aci_queue_t *aci_q);
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bool aci_queue_dequeue(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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bool aci_queue_dequeue_from_isr(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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bool aci_queue_enqueue(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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bool aci_queue_enqueue_from_isr(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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bool aci_queue_is_empty(aci_queue_t *aci_q);
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bool aci_queue_is_empty_from_isr(aci_queue_t *aci_q);
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bool aci_queue_is_full(aci_queue_t *aci_q);
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bool aci_queue_is_full_from_isr(aci_queue_t *aci_q);
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bool aci_queue_peek(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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bool aci_queue_peek_from_isr(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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#endif /* ACI_QUEUE_H__ */
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/** @} */
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