SpiMasterSyncSerial.hpp

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/*
 * This file is part of the DUDS project. It is subject to the BSD-style
 * license terms in the LICENSE file found in the top-level directory of this
 * distribution and at https://github.com/jjackowski/duds/blob/master/LICENSE.
 * No part of DUDS, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 *
 * Copyright (C) 2017  Jeff Jackowski
 */
#include <duds/hardware/interface/MasterSyncSerial.hpp>
#include <duds/hardware/interface/ChipSelect.hpp>
#include <linux/spi/spidev.h>

// /!@?!#?!#?
#undef linux

namespace duds { namespace hardware { namespace interface { namespace linux {

class SpiMasterSyncSerial : public MasterSyncSerial {
    spi_ioc_transfer xfer;
    int spifd;
protected:
    virtual void open();
    virtual void close();
    virtual void start();
    virtual void stop();
    virtual void transfer(
        const std::uint8_t * __restrict__ out,
        std::uint8_t * __restrict__ in,
        duds::general::Bits bits
    );
public:
    SpiMasterSyncSerial();
    SpiMasterSyncSerial(
        const std::string &path,
        Flags flags = MssSpiMode0,
        int freq = 100000
    );
    SpiMasterSyncSerial(Flags flags);
    ~SpiMasterSyncSerial();
    void open(
        const std::string &path,
        Flags flags = MssSpiMode0,
        int freq = 100000
    );
    void setClockFrequency(unsigned int freq);
    void setClockPeriod(unsigned int nanos);
};

} } } } // namespaces