kopia lustrzana https://github.com/mobilinkd/NucleoTNC
39 wiersze
1.2 KiB
C++
39 wiersze
1.2 KiB
C++
// Copyright 2016-2021 Rob Riggs <rob@mobilinkd.com>
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// All rights reserved.
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#pragma once
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#include "cmsis_os.h"
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#include "HdlcFrame.hpp"
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#include "PortInterface.h"
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namespace mobilinkd { namespace tnc {
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const uint32_t TX_BUFFER_SIZE = 64; // Cannot be larger that USB_FS_MAX_PACKET_SIZE.
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extern uint8_t TxBuffer[TX_BUFFER_SIZE];
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/**
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* This interface defines the semi-asynchronous interface used for reading
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* and writing. The write interface is synchronous. The read interface
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* is asynchronous. The call to open() starts a task that reads from port
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* and puts that data on the read_queue, one byte at a time.
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*/
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struct PortInterface {
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virtual ~PortInterface() {}
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virtual bool open() = 0;
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virtual bool isOpen() const = 0;
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virtual void close() = 0;
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virtual osMessageQId queue() const = 0;
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virtual bool write(const uint8_t* data, uint32_t size, uint8_t type,
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uint32_t timeout) = 0;
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virtual bool write(const uint8_t* data, uint32_t size, uint32_t timeout) = 0;
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virtual bool write(hdlc::IoFrame* frame, uint32_t timeout = osWaitForever) = 0;
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};
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extern PortInterface* ioport;
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int write(hdlc::IoFrame* frame, uint32_t timeout = osWaitForever);
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}} // mobilinkd::tnc
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