438 lines
15 KiB
C
438 lines
15 KiB
C
/* ###################################################################
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** This component module is generated by Processor Expert. Do not modify it.
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** Filename : McuRingbuffer.h
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** Project : FRDM-K64F_Generator
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** Processor : MK64FN1M0VLL12
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** Component : RingBuffer
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** Version : Component 01.054, Driver 01.00, CPU db: 3.00.000
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** Compiler : GNU C Compiler
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** Date/Time : 2020-08-14, 06:24, # CodeGen: 679
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** Abstract :
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** This component implements a ring buffer for different integer data type.
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** Settings :
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** Component name : McuRingbuffer
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** Buffer Size : 64
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** Contents :
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** Clear - void McuRingbuffer_Clear(void);
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** Put - uint8_t McuRingbuffer_Put(McuRingbuffer_ElementType elem);
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** Get - uint8_t McuRingbuffer_Get(McuRingbuffer_ElementType *elemP);
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** Peek - uint8_t McuRingbuffer_Peek(McuRingbuffer_BufSizeType index,...
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** Update - uint8_t McuRingbuffer_Update(McuRingbuffer_BufSizeType index,...
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** Putn - uint8_t McuRingbuffer_Putn(McuRingbuffer_ElementType *elem,...
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** Getn - uint8_t McuRingbuffer_Getn(McuRingbuffer_ElementType *buf,...
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** Compare - uint8_t McuRingbuffer_Compare(McuRingbuffer_BufSizeType index,...
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** Delete - uint8_t McuRingbuffer_Delete(void);
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** NofElements - McuRingbuffer_BufSizeType McuRingbuffer_NofElements(void);
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** NofFreeElements - McuRingbuffer_BufSizeType McuRingbuffer_NofFreeElements(void);
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** Deinit - void McuRingbuffer_Deinit(void);
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** Init - void McuRingbuffer_Init(void);
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**
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** * Copyright (c) 2014-2020, Erich Styger
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** * Web: https://mcuoneclipse.com
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** * SourceForge: https://sourceforge.net/projects/mcuoneclipse
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** * Git: https://github.com/ErichStyger/McuOnEclipse_PEx
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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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** * - Redistributions of source code must retain the above copyright notice, this list
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** * of conditions and the following disclaimer.
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** *
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** * - Redistributions in binary form must reproduce the above copyright notice, this
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** * list of conditions and the following disclaimer in the documentation and/or
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** * other materials provided with the distribution.
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** *
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** * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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** * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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** * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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** * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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** * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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** * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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** * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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** * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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** * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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** ###################################################################*/
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/*!
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** @file McuRingbuffer.h
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** @version 01.00
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** @brief
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** This component implements a ring buffer for different integer data type.
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*/
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/*!
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** @addtogroup McuRingbuffer_module McuRingbuffer module documentation
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** @{
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*/
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/* MODULE McuRingbuffer. */
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#include "McuRingbuffer.h"
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#if McuRingbuffer_CONFIG_REENTRANT
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#define McuRingbuffer_DEFINE_CRITICAL() McuCriticalSection_CriticalVariable()
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#define McuRingbuffer_ENTER_CRITICAL() McuCriticalSection_EnterCritical()
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#define McuRingbuffer_EXIT_CRITICAL() McuCriticalSection_ExitCritical()
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#else
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#define McuRingbuffer_DEFINE_CRITICAL() /* nothing */
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#define McuRingbuffer_ENTER_CRITICAL() /* nothing */
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#define McuRingbuffer_EXIT_CRITICAL() /* nothing */
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#endif
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static McuRingbuffer_ElementType McuRingbuffer_buffer[McuRingbuffer_CONFIG_BUF_SIZE]; /* ring buffer */
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static McuRingbuffer_BufSizeType McuRingbuffer_inIdx; /* input index */
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static McuRingbuffer_BufSizeType McuRingbuffer_outIdx; /* output index */
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static McuRingbuffer_BufSizeType McuRingbuffer_inSize; /* size data in buffer */
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/*
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** ===================================================================
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** Method : Put (component RingBuffer)
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**
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** Description :
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** Puts a new element into the buffer
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** Parameters :
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** NAME - DESCRIPTION
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** elem - New element to be put into the buffer
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Put(McuRingbuffer_ElementType elem)
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{
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uint8_t res = ERR_OK;
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McuRingbuffer_DEFINE_CRITICAL();
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McuRingbuffer_ENTER_CRITICAL();
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if (McuRingbuffer_inSize==McuRingbuffer_CONFIG_BUF_SIZE) {
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res = ERR_TXFULL;
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} else {
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McuRingbuffer_buffer[McuRingbuffer_inIdx] = elem;
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McuRingbuffer_inIdx++;
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if (McuRingbuffer_inIdx==McuRingbuffer_CONFIG_BUF_SIZE) {
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McuRingbuffer_inIdx = 0;
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}
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McuRingbuffer_inSize++;
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}
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McuRingbuffer_EXIT_CRITICAL();
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return res;
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}
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/*
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** ===================================================================
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** Method : Putn (component RingBuffer)
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**
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** Description :
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** Put a number new element into the buffer.
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** Parameters :
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** NAME - DESCRIPTION
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** * elem - Pointer to new elements to be put into
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** the buffer
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** nof - number of elements
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Putn(McuRingbuffer_ElementType *elem, McuRingbuffer_BufSizeType nof)
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{
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uint8_t res = ERR_OK;
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while(nof>0) {
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res = McuRingbuffer_Put(*elem);
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if (res!=ERR_OK) {
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break;
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}
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elem++; nof--;
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}
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return res;
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}
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/*
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** ===================================================================
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** Method : Get (component RingBuffer)
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**
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** Description :
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** Removes an element from the buffer
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** Parameters :
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** NAME - DESCRIPTION
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** * elemP - Pointer to where to store the received
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** element
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Get(McuRingbuffer_ElementType *elemP)
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{
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uint8_t res = ERR_OK;
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McuRingbuffer_DEFINE_CRITICAL();
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McuRingbuffer_ENTER_CRITICAL();
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if (McuRingbuffer_inSize==0) {
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res = ERR_RXEMPTY;
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} else {
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*elemP = McuRingbuffer_buffer[McuRingbuffer_outIdx];
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McuRingbuffer_inSize--;
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McuRingbuffer_outIdx++;
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if (McuRingbuffer_outIdx==McuRingbuffer_CONFIG_BUF_SIZE) {
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McuRingbuffer_outIdx = 0;
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}
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}
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McuRingbuffer_EXIT_CRITICAL();
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return res;
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}
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/*
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** ===================================================================
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** Method : Getn (component RingBuffer)
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**
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** Description :
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** Get a number elements into a buffer.
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** Parameters :
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** NAME - DESCRIPTION
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** * buf - Pointer to buffer where to store the
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** elements
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** nof - number of elements
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Getn(McuRingbuffer_ElementType *buf, McuRingbuffer_BufSizeType nof)
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{
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uint8_t res = ERR_OK;
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while(nof>0) {
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res = McuRingbuffer_Get(buf);
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if (res!=ERR_OK) {
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break;
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}
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buf++; nof--;
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}
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return res;
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}
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/*
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** ===================================================================
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** Method : NofElements (component RingBuffer)
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**
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** Description :
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** Returns the actual number of elements in the buffer.
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** Parameters : None
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** Returns :
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** --- - Number of elements in the buffer.
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** ===================================================================
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*/
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McuRingbuffer_BufSizeType McuRingbuffer_NofElements(void)
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{
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return McuRingbuffer_inSize;
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}
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/*
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** ===================================================================
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** Method : NofFreeElements (component RingBuffer)
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**
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** Description :
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** Returns the actual number of free elements/space in the
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** buffer.
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** Parameters : None
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** Returns :
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** --- - Number of elements in the buffer.
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** ===================================================================
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*/
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McuRingbuffer_BufSizeType McuRingbuffer_NofFreeElements(void)
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{
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return (McuRingbuffer_BufSizeType)(McuRingbuffer_CONFIG_BUF_SIZE-McuRingbuffer_inSize);
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}
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/*
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** ===================================================================
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** Method : Init (component RingBuffer)
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**
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** Description :
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** Initializes the data structure
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** Parameters : None
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** Returns : Nothing
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** ===================================================================
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*/
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void McuRingbuffer_Init(void)
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{
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McuRingbuffer_inIdx = 0;
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McuRingbuffer_outIdx = 0;
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McuRingbuffer_inSize = 0;
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}
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/*
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** ===================================================================
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** Method : Clear (component RingBuffer)
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**
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** Description :
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** Clear (empty) the ring buffer.
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** Parameters : None
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** Returns : Nothing
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** ===================================================================
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*/
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void McuRingbuffer_Clear(void)
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{
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McuRingbuffer_DEFINE_CRITICAL();
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McuRingbuffer_ENTER_CRITICAL();
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McuRingbuffer_Init();
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McuRingbuffer_EXIT_CRITICAL();
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}
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/*
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** ===================================================================
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** Method : Peek (component RingBuffer)
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**
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** Description :
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** Returns an element of the buffer without removiing it.
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** Parameters :
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** NAME - DESCRIPTION
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** index - Index of element. 0 peeks the top
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** element, 1 the next, and so on.
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** * elemP - Pointer to where to store the received
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** element
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Peek(McuRingbuffer_BufSizeType index, McuRingbuffer_ElementType *elemP)
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{
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uint8_t res = ERR_OK;
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int idx; /* index inside ring buffer */
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McuRingbuffer_DEFINE_CRITICAL();
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McuRingbuffer_ENTER_CRITICAL();
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if (index>=McuRingbuffer_CONFIG_BUF_SIZE) {
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res = ERR_OVERFLOW; /* asking for an element outside of ring buffer size */
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} else if (index<McuRingbuffer_inSize) {
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idx = (McuRingbuffer_outIdx+index)%McuRingbuffer_CONFIG_BUF_SIZE;
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*elemP = McuRingbuffer_buffer[idx];
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} else { /* asking for an element which does not exist */
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res = ERR_RXEMPTY;
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}
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McuRingbuffer_EXIT_CRITICAL();
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return res;
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}
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/*
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** ===================================================================
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** Method : Compare (component RingBuffer)
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**
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** Description :
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** Compares the elements in the buffer.
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** Parameters :
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** NAME - DESCRIPTION
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** index - Index of element. 0 peeks the top
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** element, 1 the next, and so on.
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** * elemP - Pointer to elements to compare with
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** nof - number of elements to compare
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** Returns :
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** --- - zero if elements are the same, -1 otherwise
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Compare(McuRingbuffer_BufSizeType index, McuRingbuffer_ElementType *elemP, McuRingbuffer_BufSizeType nof)
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{
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uint8_t cmpResult = 0;
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uint8_t res;
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McuRingbuffer_ElementType val;
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while(nof>0) {
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res = McuRingbuffer_Peek(index, &val);
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if (res!=ERR_OK) { /* general failure? */
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cmpResult = (uint8_t)-1; /* no match */
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break;
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}
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if (val!=*elemP) { /* mismatch */
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cmpResult = (uint8_t)-1; /* no match */
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break;
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}
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elemP++; index++; nof--;
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}
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return cmpResult;
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}
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/*
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** ===================================================================
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** Method : Deinit (component RingBuffer)
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**
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** Description :
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** Driver de-initialization
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** Parameters : None
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** Returns : Nothing
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** ===================================================================
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*/
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/**
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void McuRingbuffer_Deinit(void)
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{
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** Function is implemented as macro in the header file
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}
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*/
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/*
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** ===================================================================
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** Method : Delete (component RingBuffer)
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**
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** Description :
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** Removes an element from the buffer
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** Parameters : None
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Delete(void)
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{
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uint8_t res = ERR_OK;
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McuRingbuffer_DEFINE_CRITICAL();
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McuRingbuffer_ENTER_CRITICAL();
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if (McuRingbuffer_inSize==0) {
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res = ERR_RXEMPTY;
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} else {
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McuRingbuffer_inSize--;
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McuRingbuffer_outIdx++;
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if (McuRingbuffer_outIdx==McuRingbuffer_CONFIG_BUF_SIZE) {
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McuRingbuffer_outIdx = 0;
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}
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}
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McuRingbuffer_EXIT_CRITICAL();
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return res;
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}
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/*
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** ===================================================================
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** Method : Update (component RingBuffer)
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**
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** Description :
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** Updates the data of an element.
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** Parameters :
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** NAME - DESCRIPTION
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** index - Index of element. 0 peeks the top
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** element, 1 the next, and so on.
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** * elemP - Pointer to where to store the received
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** element
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** Returns :
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** --- - Error code
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** ===================================================================
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*/
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uint8_t McuRingbuffer_Update(McuRingbuffer_BufSizeType index, McuRingbuffer_ElementType *elemP)
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{
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uint8_t res = ERR_OK;
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int idx; /* index inside ring buffer */
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McuRingbuffer_DEFINE_CRITICAL();
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McuRingbuffer_ENTER_CRITICAL();
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if (index>=McuRingbuffer_CONFIG_BUF_SIZE) {
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res = ERR_OVERFLOW; /* asking for an element outside of ring buffer size */
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} else if (index<McuRingbuffer_inSize) {
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idx = (McuRingbuffer_outIdx+index)%McuRingbuffer_CONFIG_BUF_SIZE;
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McuRingbuffer_buffer[idx] = *elemP; /* replace element */
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} else { /* asking for an element which does not exist */
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res = ERR_RXEMPTY;
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}
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McuRingbuffer_EXIT_CRITICAL();
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return res;
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}
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/* END McuRingbuffer. */
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/*!
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** @}
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*/
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