mirror of https://github.com/g4klx/MMDVM.git
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/*
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* Copyright (C) 2020 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "Config.h"
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#if defined(MODE_OLED) || defined(I2C_REPEATER)
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#if !defined(I2CPORT_H)
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#define I2CPORT_H
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#include <cstdint>
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const uint16_t I2C_TX_FIFO_SIZE = 512U;
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class CI2CPort {
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public:
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CI2CPort(uint8_t n);
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bool init();
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uint8_t write(const uint8_t* data, uint8_t length);
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void eventHandler();
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private:
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uint8_t m_n;
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bool m_ok;
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volatile uint8_t m_fifo[I2C_TX_FIFO_SIZE];
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volatile uint16_t m_fifoHead;
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volatile uint16_t m_fifoTail;
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uint16_t fifoLevel();
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bool fifoPut(uint8_t next);
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};
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#endif
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#endif
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