pifcamp-2021/osc32_9255/RTArduLink/RTArduLink.h

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2022-05-27 14:57:30 +02:00
///////////////////////////////////////////////////////////
//
// This file is part of RTArduLink
//
// Copyright (c) 2014-2015 richards-tech
//
// Permission is hereby granted, free of charge,
// to any person obtaining a copy of
// this software and associated documentation files
// (the "Software"), to deal in the Software without
// restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute,
// sublicense, and/or sell copies of the Software, and
// to permit persons to whom the Software is furnished
// to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice
// shall be included in all copies or substantial portions
// of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
// IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
#ifndef _RTARDULINK_H
#define _RTARDULINK_H
#include "RTArduLinkDefs.h"
#include "RTArduLinkHAL.h"
#define RTARDULINK_HOST_PORT 0 // host port is always 0
#define RTARDULINK_DAISY_PORT 1 // daisy chain port is always 1
typedef struct
{
int index; // port index
bool inUse; // true if in use
RTARDULINK_RXFRAME RXFrame; // structure to maintain receive frame state
RTARDULINK_FRAME RXFrameBuffer; // used to assemble received frames
RTARDULINKHAL_PORT portHAL; // the actual hardware port interface
} RTARDULINK_PORT;
class RTArduLink
{
public:
RTArduLink();
virtual ~RTArduLink();
void begin(const char *identitySuffix); // should be called in setup() code
void background(); // should be called once per loop()
void sendDebugMessage(const char *debugMesssage); // sends a debug message to the host port
void sendMessage(unsigned char messageType, unsigned char messageParam,
unsigned char *data, int length); // sends a message to the host port
protected:
// These are functions that can be overridden
virtual void processCustomMessage(unsigned char messageType,
unsigned char messageParam, unsigned char *data, int dataLength) {}
RTARDULINK_PORT m_ports[RTARDULINKHAL_MAX_PORTS]; // port array
RTARDULINK_PORT *m_hostPort; // a link to the entry for the host port
private:
void processReceivedMessage(RTARDULINK_PORT *port); // process a completed message
void processHostMessage(); // special case for stuff received from the host port
void sendFrame(RTARDULINK_PORT *portInfo, RTARDULINK_FRAME *frame, int length); // send a frame to the host. length is length of data field
const char *m_identitySuffix; // what to add to the EEPROM identity string
};
#endif // _RTARDULINK_H