190 lines
6.5 KiB
C
190 lines
6.5 KiB
C
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/**
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* Copyright (c) 2011 - 2020, Nordic Semiconductor ASA
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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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* 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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* 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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#include <string.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "app_util.h"
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#include "nrf_atfifo.h"
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#include "nrf_atfifo_internal.h"
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#if NRF_ATFIFO_CONFIG_LOG_ENABLED
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#define NRF_LOG_LEVEL NRF_ATFIFO_CONFIG_LOG_LEVEL
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#define NRF_LOG_INIT_FILTER_LEVEL NRF_ATFIFO_CONFIG_LOG_INIT_FILTER_LEVEL
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#define NRF_LOG_INFO_COLOR NRF_ATFIFO_CONFIG_INFO_COLOR
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#define NRF_LOG_DEBUG_COLOR NRF_ATFIFO_CONFIG_DEBUG_COLOR
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#else
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#define NRF_LOG_LEVEL 0
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#endif // NRF_ATFIFO_CONFIG_LOG_ENABLED
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#include "nrf_log.h"
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/* Unions testing */
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STATIC_ASSERT(sizeof(nrf_atfifo_postag_t) == sizeof(uint32_t));
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ret_code_t nrf_atfifo_init(nrf_atfifo_t * const p_fifo, void * p_buf, uint16_t buf_size, uint16_t item_size)
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{
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if (NULL == p_buf)
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{
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NRF_LOG_INST_ERROR(p_fifo->p_log, "Initialization failed. p_buf == NULL");
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return NRF_ERROR_NULL;
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}
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if (0 != (buf_size % item_size))
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{
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NRF_LOG_INST_ERROR(p_fifo->p_log, "Initialization failed. Buf_size not multiple of item_size");
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return NRF_ERROR_INVALID_LENGTH;
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}
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p_fifo->p_buf = p_buf;
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p_fifo->tail.tag = 0;
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p_fifo->head.tag = 0;
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p_fifo->buf_size = buf_size;
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p_fifo->item_size = item_size;
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NRF_LOG_INST_INFO(p_fifo->p_log, "Initialized.");
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return NRF_SUCCESS;
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}
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ret_code_t nrf_atfifo_clear(nrf_atfifo_t * const p_fifo)
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{
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bool released = nrf_atfifo_space_clear(p_fifo);
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NRF_LOG_INST_INFO(p_fifo->p_log, "Cleared result:%s", released ? "success" : "busy");
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return released ? NRF_SUCCESS : NRF_ERROR_BUSY;
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}
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ret_code_t nrf_atfifo_alloc_put(nrf_atfifo_t * const p_fifo, void const * p_var, size_t size, bool * const p_visible)
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{
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nrf_atfifo_item_put_t context;
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bool visible;
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void * p_data = nrf_atfifo_item_alloc(p_fifo, &context);
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if (NULL == p_data)
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{
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NRF_LOG_INST_WARNING(p_fifo->p_log, "Copying in element (0x%08X) failed - no space.", p_var);
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return NRF_ERROR_NO_MEM;
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}
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memcpy(p_data, p_var, size);
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visible = nrf_atfifo_item_put(p_fifo, &context);
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if (NULL != p_visible)
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{
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*p_visible = visible;
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}
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Element (0x%08X) copied in.", p_var);
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return NRF_SUCCESS;
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}
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void * nrf_atfifo_item_alloc(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_put_t * p_context)
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{
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if (nrf_atfifo_wspace_req(p_fifo, &(p_context->last_tail)))
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{
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void * p_item = ((uint8_t*)(p_fifo->p_buf)) + p_context->last_tail.pos.wr;
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Allocated element (0x%08X).", p_item);
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return p_item;
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}
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NRF_LOG_INST_WARNING(p_fifo->p_log, "Allocation failed - no space.");
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return NULL;
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}
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bool nrf_atfifo_item_put(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_put_t * p_context)
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{
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if ((p_context->last_tail.pos.wr) == (p_context->last_tail.pos.rd))
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{
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Put (uninterrupted)");
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nrf_atfifo_wspace_close(p_fifo);
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return true;
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}
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Put (interrupted!)");
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return false;
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}
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ret_code_t nrf_atfifo_get_free(nrf_atfifo_t * const p_fifo, void * const p_var, size_t size, bool * p_released)
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{
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nrf_atfifo_item_get_t context;
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bool released;
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void const * p_s = nrf_atfifo_item_get(p_fifo, &context);
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if (NULL == p_s)
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{
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NRF_LOG_INST_WARNING(p_fifo->p_log, "Copying out failed - no item in the FIFO.");
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return NRF_ERROR_NOT_FOUND;
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}
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memcpy(p_var, p_s, size);
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released = nrf_atfifo_item_free(p_fifo, &context);
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if (NULL != p_released)
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{
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*p_released = released;
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}
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Element (0x%08X) copied out.", p_var);
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return NRF_SUCCESS;
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}
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void * nrf_atfifo_item_get(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_get_t * p_context)
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{
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if (nrf_atfifo_rspace_req(p_fifo, &(p_context->last_head)))
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{
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void * p_item = ((uint8_t*)(p_fifo->p_buf)) + p_context->last_head.pos.rd;
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Get element: 0x%08X", p_item);
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return p_item;
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}
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NRF_LOG_INST_WARNING(p_fifo->p_log, "Get failed - no item in the FIFO.");
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return NULL;
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}
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bool nrf_atfifo_item_free(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_get_t * p_context)
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{
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if ((p_context->last_head.pos.wr) == (p_context->last_head.pos.rd))
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{
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Free (uninterrupted)");
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nrf_atfifo_rspace_close(p_fifo);
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return true;
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}
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NRF_LOG_INST_DEBUG(p_fifo->p_log, "Free (interrupted)");
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return false;
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}
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