erpc_spi_slave_transport.hpp

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/*
 * Copyright (c) 2014-2016, Freescale Semiconductor, Inc.
 * Copyright 2016-2021 NXP
 * All rights reserved.
 *
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef _EMBEDDED_RPC__SPI_SLAVE_TRANSPORT_H_
#define _EMBEDDED_RPC__SPI_SLAVE_TRANSPORT_H_

#include "erpc_config_internal.h"
#include <cstdlib>
#if ERPC_THREADS
#include "erpc_threading.h"
#endif
#include "erpc_framed_transport.hpp"

extern "C" {
#include "fsl_gpio.h"
#include "fsl_spi.h"
}

// Classes

namespace erpc {
class SpiSlaveTransport : public FramedTransport
{
public:
    SpiSlaveTransport(SPI_Type *spiBaseAddr, uint32_t baudRate, uint32_t srcClock_Hz);

    virtual ~SpiSlaveTransport(void);

    virtual erpc_status_t init(void);

    void transfer_cb(void);

protected:
    SPI_Type *m_spiBaseAddr; 
    uint32_t m_baudRate;     
    uint32_t m_srcClock_Hz;  
    bool m_isInited;         
#if ERPC_THREADS
    Semaphore m_txrxSemaphore; 
#endif

private:
    using FramedTransport::underlyingReceive;
    using FramedTransport::underlyingSend;

    virtual erpc_status_t underlyingReceive(uint8_t *data, uint32_t size) override;

    virtual erpc_status_t underlyingSend(const uint8_t *data, uint32_t size) override;
};

} // namespace erpc

#endif // _EMBEDDED_RPC__SPI_SLAVE_TRANSPORT_H_