65 lines
2 KiB
C++
65 lines
2 KiB
C++
/*
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Copyright (c) 2015 Arduino LLC. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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#include "HardwareSerial.h"
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#include "SERCOM.h"
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#include "RingBuffer.h"
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#include <cstddef>
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class Uart : public HardwareSerial
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{
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public:
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Uart(SERCOM *_s, uint8_t _pinRX, uint8_t _pinTX, SercomRXPad _padRX, SercomUartTXPad _padTX);
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Uart(SERCOM *_s, uint8_t _pinRX, uint8_t _pinTX, SercomRXPad _padRX, SercomUartTXPad _padTX, uint8_t _pinRTS, uint8_t _pinCTS);
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void begin(unsigned long baudRate);
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void begin(unsigned long baudrate, uint16_t config);
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void end();
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int available();
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int availableForWrite();
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int peek();
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int read();
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void flush();
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size_t write(const uint8_t data);
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using Print::write; // pull in write(str) and write(buf, size) from Print
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void IrqHandler();
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operator bool() { return true; }
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private:
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SERCOM *sercom;
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RingBuffer rxBuffer;
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RingBuffer txBuffer;
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uint8_t uc_pinRX;
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uint8_t uc_pinTX;
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SercomRXPad uc_padRX;
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SercomUartTXPad uc_padTX;
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uint8_t uc_pinRTS;
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volatile uint32_t* pul_outsetRTS;
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volatile uint32_t* pul_outclrRTS;
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uint32_t ul_pinMaskRTS;
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uint8_t uc_pinCTS;
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SercomNumberStopBit extractNbStopBit(uint16_t config);
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SercomUartCharSize extractCharSize(uint16_t config);
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SercomParityMode extractParity(uint16_t config);
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};
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