[457] | 1 | /* Copyright (c) 2014, Nordic Semiconductor ASA
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| 2 | *
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| 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy
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| 4 | * of this software and associated documentation files (the "Software"), to deal
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| 5 | * in the Software without restriction, including without limitation the rights
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| 6 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 7 | * copies of the Software, and to permit persons to whom the Software is
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| 8 | * furnished to do so, subject to the following conditions:
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| 9 | *
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| 10 | * The above copyright notice and this permission notice shall be included in all
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| 11 | * copies or substantial portions of the Software.
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| 12 | *
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| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| 17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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| 18 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| 19 | * SOFTWARE.
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| 20 | */
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| 21 |
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| 22 | /** @file
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| 23 | * @brief Interface for buffer.
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| 24 | */
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| 25 |
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| 26 | /** @defgroup aci_queue aci_queue
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| 27 | @{
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| 28 | @ingroup aci_queue
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| 29 |
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| 30 | */
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| 31 |
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| 32 | #ifndef ACI_QUEUE_H__
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| 33 | #define ACI_QUEUE_H__
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| 34 |
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| 35 | #include "aci.h"
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| 36 | #include "hal_aci_tl.h"
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| 37 |
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| 38 | /*********************************************************************** */
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| 39 | /* The ACI_QUEUE_SIZE determines the memory usage of the system. */
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| 40 | /* Successfully tested to a ACI_QUEUE_SIZE of 4 (interrupt) and 4 (polling) */
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| 41 | /*********************************************************************** */
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| 42 | #define ACI_QUEUE_SIZE 4
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| 43 |
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| 44 | /** Data type for queue of data packets to send/receive from radio.
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| 45 | *
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| 46 | * A FIFO queue is maintained for packets. New packets are added (enqueued)
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| 47 | * at the tail and taken (dequeued) from the head. The head variable is the
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| 48 | * index of the next packet to dequeue while the tail variable is the index of
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| 49 | * where the next packet should be queued.
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| 50 | */
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| 51 |
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| 52 | typedef struct {
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| 53 | hal_aci_data_t aci_data[ACI_QUEUE_SIZE];
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| 54 | uint8_t head;
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| 55 | uint8_t tail;
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| 56 | } aci_queue_t;
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| 57 |
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| 58 | void aci_queue_init(aci_queue_t *aci_q);
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| 59 |
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| 60 | bool aci_queue_dequeue(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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| 61 | bool aci_queue_dequeue_from_isr(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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| 62 |
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| 63 | bool aci_queue_enqueue(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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| 64 | bool aci_queue_enqueue_from_isr(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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| 65 |
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| 66 | bool aci_queue_is_empty(aci_queue_t *aci_q);
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| 67 | bool aci_queue_is_empty_from_isr(aci_queue_t *aci_q);
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| 68 |
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| 69 | bool aci_queue_is_full(aci_queue_t *aci_q);
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| 70 | bool aci_queue_is_full_from_isr(aci_queue_t *aci_q);
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| 71 |
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| 72 | bool aci_queue_peek(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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| 73 | bool aci_queue_peek_from_isr(aci_queue_t *aci_q, hal_aci_data_t *p_data);
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| 74 |
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| 75 | #endif /* ACI_QUEUE_H__ */
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| 76 | /** @} */
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