/*******************************************************************************
 * Trace Recorder Library for Tracealyzer v4.4.0
 * Percepio AB, www.percepio.com
 *
 * trcStreamingPort.c
 *
 * Supporting functions for trace streaming, used by the "stream ports" 
 * for reading and writing data to the interface.
 *
 * Note that this stream port is more complex than the typical case, since
 * the J-Link interface uses a separate RAM buffer in SEGGER_RTT.c, instead
 * of the default buffer included in the recorder core. The other stream ports 
 * offer more typical examples of how to define a custom streaming interface.
 *
 * Terms of Use
 * This file is part of the trace recorder library (RECORDER), which is the 
 * intellectual property of Percepio AB (PERCEPIO) and provided under a
 * license as follows.
 * The RECORDER may be used free of charge for the purpose of recording data
 * intended for analysis in PERCEPIO products. It may not be used or modified
 * for other purposes without explicit permission from PERCEPIO.
 * You may distribute the RECORDER in its original source code form, assuming
 * this text (terms of use, disclaimer, copyright notice) is unchanged. You are
 * allowed to distribute the RECORDER with minor modifications intended for
 * configuration or porting of the RECORDER, e.g., to allow using it on a 
 * specific processor, processor family or with a specific communication
 * interface. Any such modifications should be documented directly below
 * this comment block.  
 *
 * Disclaimer
 * The RECORDER is being delivered to you AS IS and PERCEPIO makes no warranty
 * as to its use or performance. PERCEPIO does not and cannot warrant the 
 * performance or results you may obtain by using the RECORDER or documentation.
 * PERCEPIO make no warranties, express or implied, as to noninfringement of
 * third party rights, merchantability, or fitness for any particular purpose.
 * In no event will PERCEPIO, its technology partners, or distributors be liable
 * to you for any consequential, incidental or special damages, including any
 * lost profits or lost savings, even if a representative of PERCEPIO has been
 * advised of the possibility of such damages, or for any claim by any third
 * party. Some jurisdictions do not allow the exclusion or limitation of
 * incidental, consequential or special damages, or the exclusion of implied
 * warranties or limitations on how long an implied warranty may last, so the
 * above limitations may not apply to you.
 *
 * Tabs are used for indent in this file (1 tab = 4 spaces)
 *
 * Copyright Percepio AB, 2018.
 * www.percepio.com
 ******************************************************************************/
 
#include "trcRecorder.h"

#if (TRC_USE_TRACEALYZER_RECORDER == 1)
#if (TRC_CFG_RECORDER_MODE == TRC_RECORDER_MODE_STREAMING)

int32_t readFromRTT(void* ptrData, uint32_t size, int32_t* ptrBytesRead)
{
	uint32_t bytesRead = 0; 
	
	if (SEGGER_RTT_HASDATA(TRC_CFG_RTT_DOWN_BUFFER_INDEX))
	{
		bytesRead = SEGGER_RTT_Read((TRC_CFG_RTT_DOWN_BUFFER_INDEX), (char*)ptrData, size);
	
		if (ptrBytesRead != NULL)
			*ptrBytesRead = (int32_t)bytesRead;

	}

	return 0;
}

int32_t writeToRTT(void* ptrData, uint32_t size, int32_t* ptrBytesWritten)
{
	uint32_t bytesWritten = SEGGER_RTT_Write((TRC_CFG_RTT_UP_BUFFER_INDEX), (const char*)ptrData, size);
	
	if (ptrBytesWritten != NULL)
		*ptrBytesWritten = (int32_t)bytesWritten;

	return 0;
}

#endif
#endif