/** | |
* Copyright (c) 2011 - 2018, Nordic Semiconductor ASA | |
* | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* | |
* 1. Redistributions of source code must retain the above copyright notice, this | |
* list of conditions and the following disclaimer. | |
* | |
* 2. Redistributions in binary form, except as embedded into a Nordic | |
* Semiconductor ASA integrated circuit in a product or a software update for | |
* such product, must reproduce the above copyright notice, this list of | |
* conditions and the following disclaimer in the documentation and/or other | |
* materials provided with the distribution. | |
* | |
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its | |
* contributors may be used to endorse or promote products derived from this | |
* software without specific prior written permission. | |
* | |
* 4. This software, with or without modification, must only be used with a | |
* Nordic Semiconductor ASA integrated circuit. | |
* | |
* 5. Any software provided in binary form under this license must not be reverse | |
* engineered, decompiled, modified and/or disassembled. | |
* | |
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS | |
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE | |
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | |
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
*/ | |
#include <string.h> | |
#include <stdint.h> | |
#include <stdbool.h> | |
#include "app_util.h" | |
#include "nrf_atfifo.h" | |
#include "nrf_atfifo_internal.h" | |
#if NRF_ATFIFO_CONFIG_LOG_ENABLED | |
#define NRF_LOG_LEVEL NRF_ATFIFO_CONFIG_LOG_LEVEL | |
#define NRF_LOG_INIT_FILTER_LEVEL NRF_ATFIFO_CONFIG_LOG_INIT_FILTER_LEVEL | |
#define NRF_LOG_INFO_COLOR NRF_ATFIFO_CONFIG_INFO_COLOR | |
#define NRF_LOG_DEBUG_COLOR NRF_ATFIFO_CONFIG_DEBUG_COLOR | |
#else | |
#define NRF_LOG_LEVEL 0 | |
#endif // NRF_ATFIFO_CONFIG_LOG_ENABLED | |
#include "nrf_log.h" | |
/* Unions testing */ | |
STATIC_ASSERT(sizeof(nrf_atfifo_postag_t) == sizeof(uint32_t)); | |
ret_code_t nrf_atfifo_init(nrf_atfifo_t * const p_fifo, void * p_buf, uint16_t buf_size, uint16_t item_size) | |
{ | |
if (NULL == p_buf) | |
{ | |
NRF_LOG_INST_ERROR(p_fifo->p_log, "Initialization failed. p_buf == NULL"); | |
return NRF_ERROR_NULL; | |
} | |
if (0 != (buf_size % item_size)) | |
{ | |
NRF_LOG_INST_ERROR(p_fifo->p_log, "Initialization failed. Buf_size not multiple of item_size"); | |
return NRF_ERROR_INVALID_LENGTH; | |
} | |
p_fifo->p_buf = p_buf; | |
p_fifo->tail.tag = 0; | |
p_fifo->head.tag = 0; | |
p_fifo->buf_size = buf_size; | |
p_fifo->item_size = item_size; | |
NRF_LOG_INST_INFO(p_fifo->p_log, "Initialized."); | |
return NRF_SUCCESS; | |
} | |
ret_code_t nrf_atfifo_clear(nrf_atfifo_t * const p_fifo) | |
{ | |
bool released = nrf_atfifo_space_clear(p_fifo); | |
NRF_LOG_INST_INFO(p_fifo->p_log, "Cleared result:%s", released ? "success" : "busy"); | |
return released ? NRF_SUCCESS : NRF_ERROR_BUSY; | |
} | |
ret_code_t nrf_atfifo_alloc_put(nrf_atfifo_t * const p_fifo, void const * p_var, size_t size, bool * const p_visible) | |
{ | |
nrf_atfifo_item_put_t context; | |
bool visible; | |
void * p_data = nrf_atfifo_item_alloc(p_fifo, &context); | |
if (NULL == p_data) | |
{ | |
NRF_LOG_INST_WARNING(p_fifo->p_log, "Copying in element (0x%08X) failed - no space.", p_var); | |
return NRF_ERROR_NO_MEM; | |
} | |
memcpy(p_data, p_var, size); | |
visible = nrf_atfifo_item_put(p_fifo, &context); | |
if (NULL != p_visible) | |
{ | |
*p_visible = visible; | |
} | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Element (0x%08X) copied in.", p_var); | |
return NRF_SUCCESS; | |
} | |
void * nrf_atfifo_item_alloc(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_put_t * p_context) | |
{ | |
if (nrf_atfifo_wspace_req(p_fifo, &(p_context->last_tail))) | |
{ | |
void * p_item = ((uint8_t*)(p_fifo->p_buf)) + p_context->last_tail.pos.wr; | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Allocated element (0x%08X).", p_item); | |
return p_item; | |
} | |
NRF_LOG_INST_WARNING(p_fifo->p_log, "Allocation failed - no space."); | |
return NULL; | |
} | |
bool nrf_atfifo_item_put(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_put_t * p_context) | |
{ | |
if ((p_context->last_tail.pos.wr) == (p_context->last_tail.pos.rd)) | |
{ | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Put (uninterrupted)"); | |
nrf_atfifo_wspace_close(p_fifo); | |
return true; | |
} | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Put (interrupted!)"); | |
return false; | |
} | |
ret_code_t nrf_atfifo_get_free(nrf_atfifo_t * const p_fifo, void * const p_var, size_t size, bool * p_released) | |
{ | |
nrf_atfifo_item_get_t context; | |
bool released; | |
void const * p_s = nrf_atfifo_item_get(p_fifo, &context); | |
if (NULL == p_s) | |
{ | |
NRF_LOG_INST_WARNING(p_fifo->p_log, "Copying out failed - no item in the FIFO."); | |
return NRF_ERROR_NOT_FOUND; | |
} | |
memcpy(p_var, p_s, size); | |
released = nrf_atfifo_item_free(p_fifo, &context); | |
if (NULL != p_released) | |
{ | |
*p_released = released; | |
} | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Element (0x%08X) copied out.", p_var); | |
return NRF_SUCCESS; | |
} | |
void * nrf_atfifo_item_get(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_get_t * p_context) | |
{ | |
if (nrf_atfifo_rspace_req(p_fifo, &(p_context->last_head))) | |
{ | |
void * p_item = ((uint8_t*)(p_fifo->p_buf)) + p_context->last_head.pos.rd; | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Get element: 0x%08X", p_item); | |
return p_item; | |
} | |
NRF_LOG_INST_WARNING(p_fifo->p_log, "Get failed - no item in the FIFO."); | |
return NULL; | |
} | |
bool nrf_atfifo_item_free(nrf_atfifo_t * const p_fifo, nrf_atfifo_item_get_t * p_context) | |
{ | |
if ((p_context->last_head.pos.wr) == (p_context->last_head.pos.rd)) | |
{ | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Free (uninterrupted)"); | |
nrf_atfifo_rspace_close(p_fifo); | |
return true; | |
} | |
NRF_LOG_INST_DEBUG(p_fifo->p_log, "Free (interrupted)"); | |
return false; | |
} |