SynchronousSdMmcCardLowLevel.hpp

Go to the documentation of this file.

#ifndef INCLUDE_DISTORTOS_DEVICES_MEMORY_SYNCHRONOUSSDMMCCARDLOWLEVEL_HPP_
#define INCLUDE_DISTORTOS_DEVICES_MEMORY_SYNCHRONOUSSDMMCCARDLOWLEVEL_HPP_

#include "distortos/devices/memory/SdMmcCardBase.hpp"
#include "distortos/devices/memory/SdMmcCardLowLevel.hpp"

#include "distortos/Semaphore.hpp"

namespace distortos
{

namespace devices
{

class SdMmcCardLowLevel;

class SynchronousSdMmcCardLowLevel : private SdMmcCardBase
{
public:

    constexpr explicit SynchronousSdMmcCardLowLevel(SdMmcCardLowLevel& sdMmcCard) :
            semaphore_{0, 1},
            sdMmcCard_{sdMmcCard},
            result_{}
    {

    }

    void configure(const SdMmcCardLowLevel::BusMode busMode, const uint32_t clockFrequency) const
    {
        sdMmcCard_.configure(busMode, clockFrequency);
    }

    Result executeTransaction(const uint8_t command, const uint32_t argument,
            const SdMmcCardLowLevel::Response response, const SdMmcCardLowLevel::Transfer transfer)
    {
        sdMmcCard_.startTransaction(*this, command, argument, response, transfer);
        while (semaphore_.wait() != 0);
        return result_;
    }

    int start() const
    {
        return sdMmcCard_.start();
    }

    void stop() const
    {
        sdMmcCard_.stop();
    }

private:

    void transactionCompleteEvent(Result result) override;

    Semaphore semaphore_;

    SdMmcCardLowLevel& sdMmcCard_;

    Result result_;
};

}   // namespace devices

}   // namespace distortos

#endif  // INCLUDE_DISTORTOS_DEVICES_MEMORY_SYNCHRONOUSSDMMCCARDLOWLEVEL_HPP_