86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
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/**
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*********************************************************************************************************
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* Copyright(c) 2016, Realtek Semiconductor Corporation. All rights reserved.
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**********************************************************************************************************
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* @file pingpong_buffer.h
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* @brief This file provides APIs of PingPong Buffer.
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* @details
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* @author Lory Xu
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* @date 2015-12-20
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* @version v0.1
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*********************************************************************************************************
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*/
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#ifndef PINGPONG_BUFFER_H
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#define PINGPONG_BUFFER_H
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#include <stdint.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @brief LogMissedCounter records the number of log missed.
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If the value is greater then 0, please reduce logs or speed up log uart/DMA.
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*/
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typedef struct
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{
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uint8_t *pInputBuffer;
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uint8_t *pOutputBuffer;
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uint16_t InputBufferSize;
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uint16_t OutputBufferSize;
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uint32_t LogMissedCounter;
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uint32_t MaxBufferSize;
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} PingpongBuffer;
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static inline uint32_t PPB_GetLogMissedCounter(PingpongBuffer *pPPB)
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{
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return pPPB->LogMissedCounter;
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}
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static inline void PPB_ClearLogMissedCounter(PingpongBuffer *pPPB)
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{
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pPPB->LogMissedCounter = 0;
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}
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static inline bool PPB_IsInit(PingpongBuffer *pPPB)
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{
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return ((pPPB->pInputBuffer != NULL) && (pPPB->pOutputBuffer != NULL));
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}
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static inline bool PPB_IsOutputBufEmpty(PingpongBuffer *pPPB)
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{
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return (pPPB->OutputBufferSize == 0);
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}
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static inline bool PPB_IsInputBufEmpty(PingpongBuffer *pPPB)
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{
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return (pPPB->InputBufferSize == 0);
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}
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static inline uint16_t PPB_GetOutputBufSize(PingpongBuffer *pPPB)
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{
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return pPPB->OutputBufferSize;
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}
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static inline uint16_t PPB_GetInputBufSize(PingpongBuffer *pPPB)
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{
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return pPPB->InputBufferSize;
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}
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void PPB_Init(PingpongBuffer *pPPB);
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void PPB_Uninit(PingpongBuffer *pPPB);
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void PPB_Init_DLPS_Restore(PingpongBuffer *pPPB);
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void PPB_Write(PingpongBuffer *pPPB, const uint8_t *source, uint16_t size);
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void PPB_ClearOutputBuffer(PingpongBuffer *pPPB);
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void PPB_BufSwitch(PingpongBuffer *pPPB);
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#ifdef __cplusplus
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}
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#endif
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#endif
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